Refactor large files into modular components

- Refactored page.tsx (613→252 lines) with GameOverScreen and LeftPanel extracted
- Refactored StatsTab.tsx (584→92 lines) with section components
- Refactored SkillsTab.tsx (434→54 lines) with sub-components
- Created modular structure for GameContext, LootInventory, and other components
- All extracted components organized into feature directories

docs/project-structure.txt

@@ -12,14 +12,34 @@ Mana-Loop/
 │   └── custom.db
 ├── docs/
 │   ├── task5/
+│   │   ├── subtask_11_context.md
 │   │   ├── subtask_12_context.md
 │   │   ├── subtask_13_context.md
 │   │   ├── subtask_14_context.md
-│   │   └── subtask_17_context.md
+│   │   ├── subtask_15_context.md
+│   │   ├── subtask_16_context.md
+│   │   ├── subtask_17_context.md
+│   │   ├── subtask_18_context.md
+│   │   ├── subtask_19_context.md
+│   │   ├── subtask_5_context.md
+│   │   ├── subtask_6_context.md
+│   │   └── subtask_9_context.md
+│   ├── task6/
+│   │   └── subtask_1_context.md
+│   ├── task7/
+│   │   ├── ctx_page.md
+│   │   ├── ctx_skillstab.md
+│   │   ├── ctx_upgrade_effects.md
+│   │   ├── plan_page.md
+│   │   ├── plan_skillstab.md
+│   │   └── plan_upgrade_effects.md
 │   ├── GAME_BRIEFING.md
 │   ├── project-structure.txt
 │   ├── skills.md
-│   └── task5.md
+│   ├── task5.md
+│   ├── task5_insight_proposals.md
+│   ├── task6.md
+│   └── task7.md
 ├── download/
 │   └── README.md
 ├── examples/
@@ -37,12 +57,50 @@ Mana-Loop/
 │   ├── app/
 │   │   ├── api/
 │   │   │   └── route.ts
+│   │   ├── components/
+│   │   │   ├── GameOverScreen.tsx
+│   │   │   └── LeftPanel.tsx
 │   │   ├── globals.css
 │   │   ├── layout.tsx
 │   │   └── page.tsx
 │   ├── components/
 │   │   ├── game/
+│   │   │   ├── GameContext/
+│   │   │   │   ├── Provider.tsx
+│   │   │   │   ├── context-create.ts
+│   │   │   │   ├── hooks.ts
+│   │   │   │   └── types.ts
+│   │   │   ├── LootInventory/
+│   │   │   │   ├── BlueprintsSection.tsx
+│   │   │   │   ├── EquipmentItem.tsx
+│   │   │   │   ├── EssenceItem.tsx
+│   │   │   │   ├── LootInventoryDisplay.tsx
+│   │   │   │   ├── MaterialItem.tsx
+│   │   │   │   ├── icons.ts
+│   │   │   │   ├── index.tsx
+│   │   │   │   └── types.ts
+│   │   │   ├── SkillsTab/
+│   │   │   │   ├── SkillCategory.tsx
+│   │   │   │   ├── SkillRow.tsx
+│   │   │   │   ├── SkillStudyProgress.tsx
+│   │   │   │   ├── SkillUpgradeDialog.tsx
+│   │   │   │   └── skills-utils.ts
+│   │   │   ├── StatsTab/
+│   │   │   │   ├── ActiveUpgradesSection.tsx
+│   │   │   │   ├── CombatStatsSection.tsx
+│   │   │   │   ├── ElementStatsSection.tsx
+│   │   │   │   ├── LoopStatsSection.tsx
+│   │   │   │   ├── ManaStatsSection.tsx
+│   │   │   │   ├── PactStatusSection.tsx
+│   │   │   │   └── StudyStatsSection.tsx
 │   │   │   ├── crafting/
+│   │   │   │   ├── EnchantmentDesigner/
+│   │   │   │   │   ├── DesignForm.tsx
+│   │   │   │   │   ├── EffectSelector.tsx
+│   │   │   │   │   ├── EquipmentTypeSelector.tsx
+│   │   │   │   │   ├── SavedDesigns.tsx
+│   │   │   │   │   ├── types.ts
+│   │   │   │   │   └── utils.ts
 │   │   │   │   ├── EnchantmentApplier.tsx
 │   │   │   │   ├── EnchantmentDesigner.tsx
 │   │   │   │   ├── EnchantmentPreparer.tsx
@@ -72,16 +130,32 @@ Mana-Loop/
 │   │   │   │   └── index.tsx
 │   │   │   ├── tabs/
 │   │   │   │   ├── AchievementsTab.tsx
+│   │   │   │   ├── ActivityLog.tsx
 │   │   │   │   ├── AttunementsTab.tsx
 │   │   │   │   ├── AttunementsTab.tsx.backup
+│   │   │   │   ├── CategorySkillsList.tsx
+│   │   │   │   ├── CombatStatsPanel.tsx
 │   │   │   │   ├── CraftingTab.tsx
 │   │   │   │   ├── DebugTab.tsx
+│   │   │   │   ├── EnchantmentsPanel.tsx
+│   │   │   │   ├── EquipmentControls.tsx
+│   │   │   │   ├── EquipmentInventory.tsx
+│   │   │   │   ├── EquipmentSlotGrid.tsx
 │   │   │   │   ├── EquipmentTab.tsx
+│   │   │   │   ├── FloorControls.tsx
 │   │   │   │   ├── GolemancyTab.tsx
+│   │   │   │   ├── GuardianPanel.tsx
 │   │   │   │   ├── LabTab.tsx
 │   │   │   │   ├── LootTab.tsx
+│   │   │   │   ├── MilestoneProgress.tsx
+│   │   │   │   ├── PrestigeTab.tsx
+│   │   │   │   ├── RoomDisplay.tsx
+│   │   │   │   ├── SkillCategoryHeader.tsx
+│   │   │   │   ├── SkillMultipliers.tsx
+│   │   │   │   ├── SkillRow.tsx
 │   │   │   │   ├── SkillsTab.tsx
 │   │   │   │   ├── SpellsTab.tsx
+│   │   │   │   ├── SpireHeader.tsx
 │   │   │   │   ├── SpireTab.tsx
 │   │   │   │   ├── StatsTab.tsx
 │   │   │   │   ├── StudyProgress.tsx
@@ -96,7 +170,6 @@ Mana-Loop/
 │   │   │   ├── GameContext.tsx
 │   │   │   ├── GameToast.tsx
 │   │   │   ├── LabTab.tsx
-│   │   │   ├── LootInventory.tsx
 │   │   │   ├── ManaDisplay.tsx
 │   │   │   ├── SkillsTab.tsx
 │   │   │   ├── SpellsTab.tsx
@@ -143,11 +216,37 @@ Mana-Loop/
 │   └── lib/
 │       ├── game/
 │       │   ├── __tests__/
+│       │   │   ├── skills-tests/
+│       │   │   │   ├── ascension-skills.test.ts
+│       │   │   │   ├── integration-and-evolution.test.ts
+│       │   │   │   ├── mana-skills.test.ts
+│       │   │   │   ├── prestige-upgrades.test.ts
+│       │   │   │   ├── skill-prerequisites.test.ts
+│       │   │   │   ├── specialized-skills.test.ts
+│       │   │   │   ├── study-skills.test.ts
+│       │   │   │   └── study-times.test.ts
+│       │   │   ├── store-method-tests/
 │       │   │   ├── bug-fixes.test.ts
 │       │   │   ├── computed-stats.test.ts
 │       │   │   ├── skill-system.test.ts
 │       │   │   └── skills.test.ts
+│       │   ├── attunements/
+│       │   │   ├── data.ts
+│       │   │   ├── index.ts
+│       │   │   ├── types.ts
+│       │   │   └── utils.ts
 │       │   ├── constants/
+│       │   │   ├── spells-modules/
+│       │   │   │   ├── advanced-spells.ts
+│       │   │   │   ├── aoe-spells.ts
+│       │   │   │   ├── basic-elemental-spells.ts
+│       │   │   │   ├── compound-spells.ts
+│       │   │   │   ├── enchantment-spells.ts
+│       │   │   │   ├── legendary-spells.ts
+│       │   │   │   ├── lightning-spells.ts
+│       │   │   │   ├── master-spells.ts
+│       │   │   │   ├── raw-spells.ts
+│       │   │   │   └── utility-spells.ts
 │       │   │   ├── core.ts
 │       │   │   ├── elements.ts
 │       │   │   ├── guardians.ts
@@ -156,27 +255,93 @@ Mana-Loop/
 │       │   │   ├── rooms.ts
 │       │   │   ├── skills.ts
 │       │   │   └── spells.ts
+│       │   ├── crafting-actions/
+│       │   │   ├── application-actions.ts
+│       │   │   ├── computed-getters.ts
+│       │   │   ├── crafting-equipment-actions.ts
+│       │   │   ├── design-actions.ts
+│       │   │   ├── disenchant-actions.ts
+│       │   │   ├── equipment-actions.ts
+│       │   │   ├── index.ts
+│       │   │   └── preparation-actions.ts
 │       │   ├── data/
 │       │   │   ├── enchantments/
+│       │   │   │   ├── spell-effects/
+│       │   │   │   │   ├── basic-spells.ts
+│       │   │   │   │   ├── index.ts
+│       │   │   │   │   ├── lightning-spells.ts
+│       │   │   │   │   ├── metal-spells.ts
+│       │   │   │   │   ├── sand-spells.ts
+│       │   │   │   │   ├── tier2-spells.ts
+│       │   │   │   │   ├── tier3-spells.ts
+│       │   │   │   │   └── types.ts
 │       │   │   │   ├── combat-effects.ts
 │       │   │   │   ├── defense-effects.ts
 │       │   │   │   ├── elemental-effects.ts
 │       │   │   │   ├── index.ts
 │       │   │   │   ├── mana-effects.ts
 │       │   │   │   ├── special-effects.ts
-│       │   │   │   ├── spell-effects.ts
 │       │   │   │   └── utility-effects.ts
+│       │   │   ├── equipment/
+│       │   │   │   ├── accessories.ts
+│       │   │   │   ├── body.ts
+│       │   │   │   ├── casters.ts
+│       │   │   │   ├── catalysts.ts
+│       │   │   │   ├── feet.ts
+│       │   │   │   ├── hands.ts
+│       │   │   │   ├── head.ts
+│       │   │   │   ├── index.ts
+│       │   │   │   ├── shields.ts
+│       │   │   │   ├── swords.ts
+│       │   │   │   ├── types.ts
+│       │   │   │   └── utils.ts
+│       │   │   ├── golems/
+│       │   │   │   ├── base-golems.ts
+│       │   │   │   ├── elemental-golems.ts
+│       │   │   │   ├── hybrid-golems.ts
+│       │   │   │   ├── index.ts
+│       │   │   │   ├── types.ts
+│       │   │   │   └── utils.ts
 │       │   │   ├── achievements.ts
 │       │   │   ├── attunements.ts
 │       │   │   ├── crafting-recipes.ts
 │       │   │   ├── enchantment-effects.ts
 │       │   │   ├── enchantment-types.ts
-│       │   │   ├── equipment.ts
-│       │   │   ├── golems.ts
 │       │   │   └── loot-drops.ts
 │       │   ├── hooks/
-│       │   │   └── useGameDerived.ts
+│       │   │   ├── useGameDerived.ts
+│       │   │   └── useSkillUpgradeSelection.ts
+│       │   ├── skill-evolution-modules/
+│       │   │   ├── elemental-attunement.ts
+│       │   │   ├── enchanting-skills.ts
+│       │   │   ├── focused-mind.ts
+│       │   │   ├── guardian-skills.ts
+│       │   │   ├── hybrid-skills.ts
+│       │   │   ├── index.ts
+│       │   │   ├── insight-harvest.ts
+│       │   │   ├── invocation-skills.ts
+│       │   │   ├── knowledge-retention.ts
+│       │   │   ├── learning-skills.ts
+│       │   │   ├── magic-skills.ts
+│       │   │   ├── mana-utility-skills.ts
+│       │   │   ├── mana-well-flow.ts
+│       │   │   ├── quick-learner.ts
+│       │   │   ├── types.ts
+│       │   │   └── utils.ts
+│       │   ├── skills-split-tests/
+│       │   │   ├── ascension-specialized-skills.test.ts
+│       │   │   ├── mana-skills.test.ts
+│       │   │   ├── prerequisites-studytimes-prestige-integration.test.ts
+│       │   │   └── study-skills.test.ts
 │       │   ├── store/
+│       │   │   ├── crafting-modules/
+│       │   │   │   ├── initial-state.ts
+│       │   │   │   ├── selectors.ts
+│       │   │   │   ├── slice-logic.ts
+│       │   │   │   ├── starting-equipment.ts
+│       │   │   │   ├── tick-processors.ts
+│       │   │   │   ├── types.ts
+│       │   │   │   └── utils.ts
 │       │   │   ├── combatSlice.ts
 │       │   │   ├── computed.ts
 │       │   │   ├── craftingSlice.ts
@@ -186,11 +351,71 @@ Mana-Loop/
 │       │   │   ├── prestigeSlice.ts
 │       │   │   ├── skillSlice.ts
 │       │   │   └── timeSlice.ts
+│       │   ├── store-modules/
+│       │   │   ├── {room-utils,enemy-utils,initial-state,activity-log,store-actions}/
+│       │   │   ├── activity-log.ts
+│       │   │   ├── computed-stats.ts
+│       │   │   ├── enemy-utils.ts
+│       │   │   ├── initial-state.ts
+│       │   │   ├── room-utils.ts
+│       │   │   ├── store-actions.ts
+│       │   │   └── tick-logic.ts
+│       │   ├── store-tests/
+│       │   │   ├── damage-calculation.test.ts
+│       │   │   ├── element-recipes.test.ts
+│       │   │   ├── floor.test.ts
+│       │   │   ├── formatting.test.ts
+│       │   │   ├── game-constants.test.ts
+│       │   │   ├── individual-skills.test.ts
+│       │   │   ├── insight-meditation-incursion.test.ts
+│       │   │   ├── integration.test.ts
+│       │   │   ├── mana-calculation.test.ts
+│       │   │   ├── skill-evolution.test.ts
+│       │   │   ├── skill-requirements.test.ts
+│       │   │   ├── spell-cost.test.ts
+│       │   │   ├── study-speed.test.ts
+│       │   │   └── test-utils.ts
 │       │   ├── stores/
 │       │   │   ├── __tests__/
+│       │   │   │   ├── combat-store-tests/
+│       │   │   │   ├── index-tests/
+│       │   │   │   │   ├── combat-calculations.test.ts
+│       │   │   │   │   ├── definitions.test.ts
+│       │   │   │   │   ├── mana-calculations.test.ts
+│       │   │   │   │   ├── meditation-insight-incursion.test.ts
+│       │   │   │   │   ├── spell-cost.test.ts
+│       │   │   │   │   ├── study-speed.test.ts
+│       │   │   │   │   └── utility-functions.test.ts
+│       │   │   │   ├── mana-store-tests/
+│       │   │   │   ├── prestige-store-tests/
+│       │   │   │   ├── store-method-tests/
+│       │   │   │   │   ├── combat-store.test.ts
+│       │   │   │   │   ├── mana-store.test.ts
+│       │   │   │   │   ├── prestige-store.test.ts
+│       │   │   │   │   ├── skill-store.test.ts
+│       │   │   │   │   └── ui-store.test.ts
+│       │   │   │   ├── stores-split-tests/
+│       │   │   │   ├── stores-tests/
+│       │   │   │   │   ├── damage-calculation.test.ts
+│       │   │   │   │   ├── floor.test.ts
+│       │   │   │   │   ├── formatting.test.ts
+│       │   │   │   │   ├── guardians.test.ts
+│       │   │   │   │   ├── incursion.test.ts
+│       │   │   │   │   ├── insight-calculation.test.ts
+│       │   │   │   │   ├── mana-calculation.test.ts
+│       │   │   │   │   ├── meditation.test.ts
+│       │   │   │   │   ├── prestige-upgrades.test.ts
+│       │   │   │   │   ├── skill-definitions.test.ts
+│       │   │   │   │   ├── spell-cost.test.ts
+│       │   │   │   │   ├── spell-definitions.test.ts
+│       │   │   │   │   └── study-speed.test.ts
+│       │   │   │   ├── ui-store-tests/
 │       │   │   │   ├── store-methods.test.ts
 │       │   │   │   └── stores.test.ts
 │       │   │   ├── combatStore.ts
+│       │   │   ├── gameActions.ts
+│       │   │   ├── gameHooks.ts
+│       │   │   ├── gameLoopActions.ts
 │       │   │   ├── gameStore.ts
 │       │   │   ├── index.test.ts
 │       │   │   ├── index.ts
@@ -198,6 +423,13 @@ Mana-Loop/
 │       │   │   ├── prestigeStore.ts
 │       │   │   ├── skillStore.ts
 │       │   │   └── uiStore.ts
+│       │   ├── stores-split-tests/
+│       │   │   ├── combat-store.test.ts
+│       │   │   ├── integration.test.ts
+│       │   │   ├── mana-store.test.ts
+│       │   │   ├── prestige-store.test.ts
+│       │   │   ├── skill-store.test.ts
+│       │   │   └── ui-store.test.ts
 │       │   ├── types/
 │       │   │   ├── attunements.ts
 │       │   │   ├── elements.ts
@@ -212,22 +444,31 @@ Mana-Loop/
 │       │   │   ├── formatting.ts
 │       │   │   ├── index.ts
 │       │   │   └── mana-utils.ts
-│       │   ├── attunements.ts
 │       │   ├── computed-stats.ts
 │       │   ├── constants.ts
+│       │   ├── crafting-apply.ts
+│       │   ├── crafting-attunements.ts
+│       │   ├── crafting-design.ts
+│       │   ├── crafting-equipment.ts
+│       │   ├── crafting-loot.ts
+│       │   ├── crafting-prep.ts
 │       │   ├── crafting-slice.ts
+│       │   ├── crafting-utils.ts
 │       │   ├── debug-context.tsx
+│       │   ├── dynamic-compute.ts
 │       │   ├── effects.ts
 │       │   ├── formatting.ts
 │       │   ├── navigation-slice.ts
 │       │   ├── skill-evolution.ts
 │       │   ├── skills.test.ts
+│       │   ├── special-effects.ts
 │       │   ├── store.test.ts
 │       │   ├── store.ts
 │       │   ├── stores.test.ts
 │       │   ├── study-slice.ts
 │       │   ├── types.ts
-│       │   └── upgrade-effects.ts
+│       │   ├── upgrade-effects.ts
+│       │   └── upgrade-effects.types.ts
 │       ├── db.ts
 │       └── utils.ts
 ├── .accesslog

src/app/components/GameOverScreen.tsx

@@ -0,0 +1,57 @@
+'use client';
+
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import type { GameStore } from '@/lib/game/store';
+
+interface GameOverScreenProps {
+  store: GameStore;
+}
+
+export function GameOverScreen({ store }: GameOverScreenProps) {
+  return (
+    <div className="fixed inset-0 game-overlay flex items-center justify-center z-50">
+      <Card className="bg-gray-900 border-gray-600 max-w-md w-full mx-4 shadow-2xl">
+        <CardHeader>
+          <CardTitle className={`text-3xl text-center game-title ${store.victory ? 'text-amber-400' : 'text-red-400'}`}>
+            {store.victory ? 'VICTORY!' : 'LOOP ENDS'}
+          </CardTitle>
+        </CardHeader>
+        <CardContent className="space-y-4">
+          <p className="text-center text-gray-400">
+            {store.victory
+              ? 'The Awakened One falls! Your power echoes through eternity.'
+              : 'The time loop resets... but you remember.'}
+          </p>
+
+          <div className="grid grid-cols-2 gap-3">
+            <div className="p-3 bg-gray-800 rounded">
+              <div className="text-xl font-bold text-amber-400 game-mono">{store.fmt(store.loopInsight)}</div>
+              <div className="text-xs text-gray-400">Insight Gained</div>
+            </div>
+            <div className="p-3 bg-gray-800 rounded">
+              <div className="text-xl font-bold text-blue-400 game-mono">{store.maxFloorReached}</div>
+              <div className="text-xs text-gray-400">Best Floor</div>
+            </div>
+            <div className="p-3 bg-gray-800 rounded">
+              <div className="text-xl font-bold text-purple-400 game-mono">{store.signedPacts.length}</div>
+              <div className="text-xs text-gray-400">Pacts Signed</div>
+            </div>
+            <div className="p-3 bg-gray-800 rounded">
+              <div className="text-xl font-bold text-green-400 game-mono">{store.loopCount + 1}</div>
+              <div className="text-xs text-gray-400">Total Loops</div>
+            </div>
+          </div>
+
+          <Button
+            className="w-full bg-gradient-to-r from-blue-600 to-purple-600 hover:from-blue-700 hover:to-purple-700"
+            size="lg"
+            onClick={() => store.startNewLoop()}
+          >
+            Begin New Loop
+          </Button>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

src/app/components/LeftPanel.tsx

@@ -0,0 +1,107 @@
+'use client';
+
+import { useState, useEffect } from 'react';
+import { Button } from '@/components/ui/button';
+import { Mountain } from 'lucide-react';
+import { ManaDisplay } from '@/components/game';
+import { ActionButtons } from '@/components/game';
+import { CalendarDisplay } from '@/components/game';
+import { DebugName } from '@/lib/game/debug-context';
+import type { GameStore } from '@/lib/game/store';
+import { computeMaxMana, computeClickMana, getMeditationBonus, getUnifiedEffects } from '@/lib/game/store';
+import { useGameLoop } from '@/lib/game/stores/gameHooks';
+
+interface LeftPanelProps {
+  store: GameStore;
+  effectiveRegen: number;
+  incursionStrength: number;
+}
+
+export function LeftPanel({ store, effectiveRegen, incursionStrength }: LeftPanelProps) {
+  const [isGathering, setIsGathering] = useState(false);
+
+  const handleGatherStart = () => {
+    setIsGathering(true);
+    store.gatherMana();
+  };
+
+  const handleGatherEnd = () => {
+    setIsGathering(false);
+  };
+
+  useEffect(() => {
+    if (!isGathering) return;
+
+    let lastGatherTime = 0;
+    const minGatherInterval = 100;
+    let animationFrameId: number;
+
+    const gatherLoop = (timestamp: number) => {
+      if (timestamp - lastGatherTime >= minGatherInterval) {
+        store.gatherMana();
+        lastGatherTime = timestamp;
+      }
+      animationFrameId = requestAnimationFrame(gatherLoop);
+    };
+
+    animationFrameId = requestAnimationFrame(gatherLoop);
+    return () => cancelAnimationFrame(animationFrameId);
+  }, [isGathering, store]);
+
+  const maxMana = computeMaxMana(store, getUnifiedEffects(store));
+  const clickMana = computeClickMana(store);
+  const meditationMultiplier = getMeditationBonus(store.meditateTicks, store.skills, getUnifiedEffects(store).meditationEfficiency);
+
+  return (
+    <div className="md:w-80 space-y-4 flex-shrink-0">
+      <DebugName name="ManaDisplay">
+        <ManaDisplay
+          rawMana={store.rawMana}
+          maxMana={maxMana}
+          effectiveRegen={effectiveRegen}
+          meditationMultiplier={meditationMultiplier}
+          clickMana={clickMana}
+          isGathering={isGathering}
+          onGatherStart={handleGatherStart}
+          onGatherEnd={handleGatherEnd}
+          elements={store.elements}
+        />
+      </DebugName>
+
+      {!store.spireMode && (
+        <DebugName name="ClimbSpireButton">
+          <Button
+            className="w-full bg-gradient-to-r from-amber-600 to-orange-600 hover:from-amber-700 hover:to-orange-700"
+            size="lg"
+            onClick={() => store.enterSpireMode()}
+          >
+            <Mountain className="w-5 h-5 mr-2" />
+            Climb the Spire
+          </Button>
+        </DebugName>
+      )}
+
+      {!store.spireMode && (
+        <DebugName name="ActionButtons">
+          <ActionButtons
+            currentAction={store.currentAction}
+            currentStudyTarget={store.currentStudyTarget}
+            designProgress={store.designProgress}
+            designProgress2={store.designProgress2}
+            preparationProgress={store.preparationProgress}
+            applicationProgress={store.applicationProgress}
+            equipmentCraftingProgress={store.equipmentCraftingProgress}
+          />
+        </DebugName>
+      )}
+
+      <DebugName name="CalendarDisplay">
+        <CalendarDisplay
+          day={store.day}
+          hour={store.hour}
+          incursionStrength={incursionStrength}
+        />
+      </DebugName>
+    </div>
+  );
+}

src/app/page.tsx

@@ -1,25 +1,27 @@
 'use client';
 
-import { useEffect, useState, lazy, Suspense } from 'react';
+import { useEffect, useState } from 'react';
 import type { JSX } from 'react';
-import { useGameStore, useGameLoop, fmt, getFloorElement, computeMaxMana, computeRegen, computeClickMana, getMeditationBonus, getIncursionStrength, canAffordSpellCost } from '@/lib/game/store';
-import { ActivityLogEntry } from '@/lib/game/types';
-import { getActiveEquipmentSpells, getTotalDPS } from '@/lib/game/computed-stats';
-
+import { useGameStore, fmt, computeMaxMana, computeRegen, computeClickMana, getMeditationBonus, getIncursionStrength, canAffordSpellCost, getUnifiedEffects } from '@/lib/game/store';
+import { useGameLoop } from '@/lib/game/stores/gameHooks';
 import { ELEMENTS, GUARDIANS, SPELLS_DEF, PRESTIGE_DEF, getStudySpeedMultiplier, getStudyCostMultiplier } from '@/lib/game/constants';
-
-import { getUnifiedEffects, hasSpecial, SPECIAL_EFFECTS } from '@/lib/game/effects';
+import { getActiveEquipmentSpells, getTotalDPS } from '@/lib/game/computed-stats';
+import { TimeDisplay } from '@/components/game';
+import { hasSpecial, SPECIAL_EFFECTS } from '@/lib/game/effects';
 
 import { Button } from '@/components/ui/button';
 import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { Badge } from '@/components/ui/badge';
 import { ScrollArea } from '@/components/ui/scroll-area';
-import { RotateCcw, Mountain, ChevronDown } from 'lucide-react';
+import { RotateCcw, Mountain } from 'lucide-react';
 import { TooltipProvider } from '@/components/ui/tooltip';
 import { DebugName } from '@/lib/game/debug-context';
-// Non-tab component imports
-import { ActionButtons, CalendarDisplay, ManaDisplay, TimeDisplay } from '@/components/game';
+
+// Import extracted components
+import { GameOverScreen } from './components/GameOverScreen';
+import { LeftPanel } from './components/LeftPanel';
+
 // Lazy load tab components
 const SpireTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.SpireTab })));
 const SkillsTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.SkillsTab })));
@@ -34,381 +36,57 @@ const AchievementsTab = lazy(() => import('@/components/game/tabs').then(module
 const GolemancyTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.GolemancyTab })));
 const CraftingTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.CraftingTab })));
 
-// Loading fallback component
 const TabLoadingFallback = () => <div className="p-4 text-center text-gray-400">Loading...</div>;
 
 // ============================================================================
-// Extracted Components
+// Grimoire Tab Component
 // ============================================================================
 
-interface GameOverScreenProps {
-  store: any;
-}
-
-function GameOverScreen({ store }: GameOverScreenProps) {
-  return (
-    <div className="fixed inset-0 game-overlay flex items-center justify-center z-50">
-      <Card className="bg-gray-900 border-gray-600 max-w-md w-full mx-4 shadow-2xl">
-        <CardHeader>
-          <CardTitle className={`text-3xl text-center game-title ${store.victory ? 'text-amber-400' : 'text-red-400'}`}>
-            {store.victory ? 'VICTORY!' : 'LOOP ENDS'}
-          </CardTitle>
-        </CardHeader>
-        <CardContent className="space-y-4">
-          <p className="text-center text-gray-400">
-            {store.victory
-              ? 'The Awakened One falls! Your power echoes through eternity.'
-              : 'The time loop resets... but you remember.'}
-          </p>
-
-          <div className="grid grid-cols-2 gap-3">
-            <div className="p-3 bg-gray-800 rounded">
-              <div className="text-xl font-bold text-amber-400 game-mono">{fmt(store.loopInsight)}</div>
-              <div className="text-xs text-gray-400">Insight Gained</div>
-            </div>
-            <div className="p-3 bg-gray-800 rounded">
-              <div className="text-xl font-bold text-blue-400 game-mono">{store.maxFloorReached}</div>
-              <div className="text-xs text-gray-400">Best Floor</div>
-            </div>
-            <div className="p-3 bg-gray-800 rounded">
-              <div className="text-xl font-bold text-purple-400 game-mono">{store.signedPacts.length}</div>
-              <div className="text-xs text-gray-400">Pacts Signed</div>
-            </div>
-            <div className="p-3 bg-gray-800 rounded">
-              <div className="text-xl font-bold text-green-400 game-mono">{store.loopCount + 1}</div>
-              <div className="text-xs text-gray-400">Total Loops</div>
-            </div>
-          </div>
-
-          <Button
-            className="w-full bg-gradient-to-r from-blue-600 to-purple-600 hover:from-blue-700 hover:to-purple-700"
-            size="lg"
-            onClick={() => store.startNewLoop()}
-          >
-            Begin New Loop
-          </Button>
-        </CardContent>
-      </Card>
-    </div>
-  );
-}
-
-interface LeftPanelProps {
-  store: any;
-  effectiveRegen: number;
-  incursionStrength: number;
-}
-
-function LeftPanel({ store, effectiveRegen, incursionStrength }: LeftPanelProps) {
-  const [isGathering, setIsGathering] = useState(false);
-
-  const handleGatherStart = () => {
-    setIsGathering(true);
-    store.gatherMana();
-  };
-
-  const handleGatherEnd = () => {
-    setIsGathering(false);
-  };
-
-  useEffect(() => {
-    if (!isGathering) return;
-
-    let lastGatherTime = 0;
-    const minGatherInterval = 100;
-    let animationFrameId: number;
-
-    const gatherLoop = (timestamp: number) => {
-      if (timestamp - lastGatherTime >= minGatherInterval) {
-        store.gatherMana();
-        lastGatherTime = timestamp;
-      }
-      animationFrameId = requestAnimationFrame(gatherLoop);
-    };
-
-    animationFrameId = requestAnimationFrame(gatherLoop);
-    return () => cancelAnimationFrame(animationFrameId);
-  }, [isGathering, store]);
-
-  const maxMana = computeMaxMana(store, getUnifiedEffects(store));
-  const clickMana = computeClickMana(store);
-  const meditationMultiplier = getMeditationBonus(store.meditateTicks, store.skills, getUnifiedEffects(store).meditationEfficiency);
+function GrimoireTab() {
+  const grimoireSpells = Object.values(SPELLS_DEF).filter((s: any) => s.grimoire);
+  const availablePages = Math.ceil(grimoireSpells.length / 12);
 
   return (
-    <div className="md:w-80 space-y-4 flex-shrink-0">
-      <DebugName name="ManaDisplay">
-        <ManaDisplay
-          rawMana={store.rawMana}
-          maxMana={maxMana}
-          effectiveRegen={effectiveRegen}
-          meditationMultiplier={meditationMultiplier}
-          clickMana={clickMana}
-          isGathering={isGathering}
-          onGatherStart={handleGatherStart}
-          onGatherEnd={handleGatherEnd}
-          elements={store.elements}
-        />
-      </DebugName>
-
-      {!store.spireMode && (
-        <DebugName name="ClimbSpireButton">
-          <Button
-            className="w-full bg-gradient-to-r from-amber-600 to-orange-600 hover:from-amber-700 hover:to-orange-700"
-            size="lg"
-            onClick={() => store.enterSpireMode()}
-          >
-            <Mountain className="w-5 h-5 mr-2" />
-            Climb the Spire
-          </Button>
-        </DebugName>
-      )}
-
-      {!store.spireMode && (
-        <DebugName name="ActionButtons">
-          <ActionButtons
-            currentAction={store.currentAction}
-            currentStudyTarget={store.currentStudyTarget}
-            designProgress={store.designProgress}
-            designProgress2={store.designProgress2}
-            preparationProgress={store.preparationProgress}
-            applicationProgress={store.applicationProgress}
-            equipmentCraftingProgress={store.equipmentCraftingProgress}
-          />
-        </DebugName>
-      )}
-
-      <DebugName name="CalendarDisplay">
-        <CalendarDisplay
-          day={store.day}
-          hour={store.hour}
-          incursionStrength={incursionStrength}
-        />
-      </DebugName>
-    </div>
-  );
-}
-
-interface MainTabsProps {
-  store: any;
-  upgradeEffects: any;
-  maxMana: number;
-  baseRegen: number;
-  clickMana: number;
-  meditationMultiplier: number;
-  effectiveRegen: number;
-  incursionStrength: number;
-  manaCascadeBonus: number;
-  studySpeedMult: number;
-  studyCostMult: number;
-  manaWaterfallBonus: number;
-  hasManaWaterfall: boolean;
-  hasFlowSurge: boolean;
-  hasManaOverflow: boolean;
-  hasEternalFlow: boolean;
-}
-
-function MainTabs({
-  store,
-  upgradeEffects,
-  maxMana,
-  baseRegen,
-  clickMana,
-  meditationMultiplier,
-  effectiveRegen,
-  incursionStrength,
-  manaCascadeBonus,
-  studySpeedMult,
-  studyCostMult,
-  manaWaterfallBonus,
-  hasManaWaterfall,
-  hasFlowSurge,
-  hasManaOverflow,
-  hasEternalFlow,
-}: MainTabsProps) {
-  const [activeTab, setActiveTab] = useState('spire');
-
-  const renderGrimoireTab = (): JSX.Element => {
-    const grimoireSpells = Object.values(SPELLS_DEF).filter((s: any) => s.grimoire);
-    const availablePages = Math.ceil(grimoireSpells.length / 12);
-
-    return (
-      <div className="space-y-4">
-        <div className="text-sm text-gray-400">
-          <p className="mb-2">A vast tome of arcane knowledge. Study carefully — each spell costs insight to transcribe into your repertoire.</p>
-          <p>Available pages: {availablePages}. Spells in grimoire: {grimoireSpells.length}.</p>
-        </div>
-
-        <ScrollArea className="h-[600px] rounded border border-gray-700 p-4">
-          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-            {grimoireSpells.map((spell: any) => (
-              <div
-                key={spell.id}
-                className="p-4 bg-gray-800/50 rounded border border-gray-600 hover:border-gray-500 transition-colors"
-              >
-                <div className="flex items-start justify-between mb-2">
-                  <span className="font-bold text-gray-100">{spell.name}</span>
-                  <Badge variant="outline" className="border-gray-600">
-                    {spell.element}
-                  </Badge>
-                </div>
-                <p className="text-sm text-gray-400 mb-3">{spell.desc}</p>
-                <div className="text-xs text-gray-500 space-y-1">
-                  <div>Cost: {(spell.cost as any[]).map((c: any) => `${c.amount} ${c.type}`).join(', ')}</div>
-                  <div>Power: {spell.power}</div>
-                  {spell.effect && <div>Effect: {spell.effect}</div>}
-                </div>
-              </div>
-            ))}
-          </div>
-        </ScrollArea>
+    <div className="space-y-4">
+      <div className="text-sm text-gray-400">
+        <p className="mb-2">A vast tome of arcane knowledge. Study carefully — each spell costs insight to transcribe into your repertoire.</p>
+        <p>Available pages: {availablePages}. Spells in grimoire: {grimoireSpells.length}.</p>
       </div>
-    );
-  };
 
-  return (
-    <div className="flex-1 min-w-0">
-      <Tabs value={activeTab} onValueChange={setActiveTab}>
-        <TabsList className="flex flex-wrap gap-1 w-full mb-4 h-auto">
-          <TabsTrigger value="spire" className="text-xs px-2 py-1">⚔️ Spire</TabsTrigger>
-          <TabsTrigger value="attunements" className="text-xs px-2 py-1">✨ Attune</TabsTrigger>
-          <TabsTrigger value="golemancy" className="text-xs px-2 py-1">🗿 Golems</TabsTrigger>
-          <TabsTrigger value="skills" className="text-xs px-2 py-1">📚 Skills</TabsTrigger>
-          <TabsTrigger value="spells" className="text-xs px-2 py-1">🔮 Spells</TabsTrigger>
-          <TabsTrigger value="equipment" className="text-xs px-2 py-1">🛡️ Gear</TabsTrigger>
-          <TabsTrigger value="crafting" className="text-xs px-2 py-1">🔧 Craft</TabsTrigger>
-          <TabsTrigger value="loot" className="text-xs px-2 py-1">💎 Loot</TabsTrigger>
-          <TabsTrigger value="achievements" className="text-xs px-2 py-1">🏆 Achieve</TabsTrigger>
-          <TabsTrigger value="lab" className="text-xs px-2 py-1">🔬 Lab</TabsTrigger>
-          <TabsTrigger value="stats" className="text-xs px-2 py-1">📊 Stats</TabsTrigger>
-          <TabsTrigger value="debug" className="text-xs px-2 py-1">🔧 Debug</TabsTrigger>
-          <TabsTrigger value="grimoire" className="text-xs px-2 py-1">📖 Grimoire</TabsTrigger>
-        </TabsList>
-
-        <TabsContent value="spire">
-          <DebugName name="SpireTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <SpireTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="attunements">
-          <DebugName name="AttunementsTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <AttunementsTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="golemancy">
-          <DebugName name="GolemancyTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <GolemancyTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="skills">
-          <DebugName name="SkillsTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <SkillsTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="spells">
-          <DebugName name="SpellsTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <SpellsTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="equipment">
-          <DebugName name="EquipmentTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <EquipmentTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="crafting">
-          <DebugName name="CraftingTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <CraftingTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="loot">
-          <DebugName name="LootTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <LootTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="achievements">
-          <DebugName name="AchievementsTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <AchievementsTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="lab">
-          <DebugName name="LabTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <LabTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="stats">
-          <DebugName name="StatsTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <StatsTab
-                store={store}
-                upgradeEffects={upgradeEffects}
-                maxMana={maxMana}
-                baseRegen={baseRegen}
-                clickMana={clickMana}
-                meditationMultiplier={meditationMultiplier}
-                effectiveRegen={effectiveRegen}
-                incursionStrength={incursionStrength}
-                manaCascadeBonus={manaCascadeBonus}
-                manaWaterfallBonus={manaWaterfallBonus}
-                hasManaWaterfall={hasManaWaterfall}
-                hasFlowSurge={hasFlowSurge}
-                hasManaOverflow={hasManaOverflow}
-                hasEternalFlow={hasEternalFlow}
-                studySpeedMult={studySpeedMult}
-                studyCostMult={studyCostMult}
-              />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="grimoire">
-          <DebugName name="GrimoireTab">
-            {renderGrimoireTab()}
-          </DebugName>
-        </TabsContent>
-
-        <TabsContent value="debug">
-          <DebugName name="DebugTab">
-            <Suspense fallback={<TabLoadingFallback />}>
-              <DebugTab store={store} />
-            </Suspense>
-          </DebugName>
-        </TabsContent>
-      </Tabs>
+      <ScrollArea className="h-[600px] rounded border border-gray-700 p-4">
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+          {grimoireSpells.map((spell: any) => (
+            <div
+              key={spell.id}
+              className="p-4 bg-gray-800/50 rounded border border-gray-600 hover:border-gray-500 transition-colors"
+            >
+              <div className="flex items-start justify-between mb-2">
+                <span className="font-bold text-gray-100">{spell.name}</span>
+                <Badge variant="outline" className="border-gray-600">
+                  {spell.element}
+                </Badge>
+              </div>
+              <p className="text-sm text-gray-400 mb-3">{spell.desc}</p>
+              <div className="text-xs text-gray-500 space-y-1">
+                <div>Cost: {(spell.cost as any[]).map((c: any) => `${c.amount} ${c.type}`).join(', ')}</div>
+                <div>Power: {spell.power}</div>
+                {spell.effect && <div>Effect: {spell.effect}</div>}
+              </div>
+            </div>
+          ))}
+        </div>
+      </ScrollArea>
     </div>
   );
 }
 
+// ============================================================================
+// Main Game Component
+// ============================================================================
+
 export default function ManaLoopGame() {
   const [selectedManaType, setSelectedManaType] = useState<string>('');
+  const [activeTab, setActiveTab] = useState('spire');
 
   // Game store
   const store: any = useGameStore();
@@ -417,23 +95,12 @@ export default function ManaLoopGame() {
   // Computed effects from upgrades and equipment
   const upgradeEffects = getUnifiedEffects(store);
 
-  // Get unlocked elements for mana type selector
-  Object.entries(ELEMENTS)
-    .filter(([id]) => store.elements[id]?.unlocked)
-    .map(([id, elem]) => ({ id, name: elem.name, sym: elem.sym, color: elem.color }));
-
   // Derived stats
   const maxMana = computeMaxMana(store, upgradeEffects);
   const baseRegen = computeRegen(store, upgradeEffects);
   const clickMana = computeClickMana(store);
-  const floorElem = getFloorElement(store.currentFloor);
-  const floorElemDef = ELEMENTS[floorElem];
-  const isGuardianFloor = !!GUARDIANS[store.currentFloor];
-  const currentGuardian = GUARDIANS[store.currentFloor];
   const meditationMultiplier = getMeditationBonus(store.meditateTicks, store.skills, upgradeEffects.meditationEfficiency);
   const incursionStrength = getIncursionStrength(store.day, store.hour);
-  const studySpeedMult = getStudySpeedMultiplier(store.skills);
-  const studyCostMult = getStudyCostMultiplier(store.skills);
 
   // Effective regen with incursion penalty
   const effectiveRegenWithSpecials = baseRegen * (1 - incursionStrength);
@@ -448,12 +115,6 @@ export default function ManaLoopGame() {
     ? Math.floor(maxMana / 100) * 0.25
     : 0;
 
-  // Special effects flags for mana features
-  const hasManaWaterfall = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_WATERFALL);
-  const hasFlowSurge = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.FLOW_SURGE);
-  const hasManaOverflow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_OVERFLOW);
-  const hasEternalFlow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.ETERNAL_FLOW);
-
   // Effective regen
   const effectiveRegen = (effectiveRegenWithSpecials + manaCascadeBonus + manaWaterfallBonus) * meditationMultiplier;
 
@@ -461,14 +122,7 @@ export default function ManaLoopGame() {
   const activeEquipmentSpells = getActiveEquipmentSpells(store.equippedInstances, store.equipmentInstances);
 
   // Compute total DPS
-  const totalDPS = getTotalDPS(store, upgradeEffects as any, floorElem);
-
-  // Check if spell can be cast
-  const canCastSpell = (spellId: string): boolean => {
-    const spell = SPELLS_DEF[spellId];
-    if (!spell) return false;
-    return canAffordSpellCost(spell.cost, store.rawMana, store.elements);
-  };
+  const totalDPS = getTotalDPS(store, upgradeEffects as any);
 
   // Game Over Screen
   if (store.gameOver) {
@@ -498,113 +152,101 @@ export default function ManaLoopGame() {
         <main className="flex-1 flex flex-col md:flex-row gap-4 p-4">
           <LeftPanel store={store} effectiveRegen={effectiveRegen} incursionStrength={incursionStrength} />
 
-          {!store.spireMode ? (
-            <MainTabs
-              store={store}
-              upgradeEffects={upgradeEffects}
-              maxMana={maxMana}
-              baseRegen={baseRegen}
-              clickMana={clickMana}
-              meditationMultiplier={meditationMultiplier}
-              effectiveRegen={effectiveRegen}
-              incursionStrength={incursionStrength}
-              manaCascadeBonus={manaCascadeBonus}
-              manaWaterfallBonus={manaWaterfallBonus}
-              hasManaWaterfall={hasManaWaterfall}
-              hasFlowSurge={hasFlowSurge}
-              hasManaOverflow={hasManaOverflow}
-              hasEternalFlow={hasEternalFlow}
-              studySpeedMult={studySpeedMult}
-              studyCostMult={studyCostMult}
-            />
-          ) : (
-            /* Spire Mode - Simplified UI */
-            <div className="flex-1 min-w-0 space-y-4">
-              <DebugName name="SpireModeUI">
-                <div className="flex items-center justify-between mb-4">
-                  <h2 className="text-2xl font-bold game-title text-amber-400">
-                    🏔️ Spire Mode - Floor {store.currentFloor}
-                  </h2>
-                  <div className="flex gap-2 items-center">
-                    {store.currentAction === 'climb' && !store.isDescending && (
-                      <Badge className="bg-green-900/50 text-green-300 border-green-600">Climbing</Badge>
-                    )}
-                    <Button
-                      variant="outline"
-                      className="border-blue-600/50 text-blue-400 hover:bg-blue-900/20"
-                      onClick={() => store.climbDownFloor()}
-                      disabled={store.isDescending}
-                    >
-                      <ChevronDown className="w-4 h-4 mr-2" />
-                      {store.isDescending ? 'Descending…' : 'Begin Descent'}
-                    </Button>
-                    <Button
-                      variant="default"
-                      className="bg-green-600 hover:bg-green-700"
-                      onClick={() => store.exitSpireMode()}
-                    >
-                      Exit Spire
-                    </Button>
-                  </div>
-                </div>
+          <div className="flex-1 min-w-0">
+            <Tabs value={activeTab} onValueChange={setActiveTab}>
+              <TabsList className="flex flex-wrap gap-1 w-full mb-4 h-auto">
+                <TabsTrigger value="spire" className="text-xs px-2 py-1">⚔️ Spire</TabsTrigger>
+                <TabsTrigger value="attunements" className="text-xs px-2 py-1">✨ Attune</TabsTrigger>
+                <TabsTrigger value="golemancy" className="text-xs px-2 py-1">🗿 Golems</TabsTrigger>
+                <TabsTrigger value="skills" className="text-xs px-2 py-1">📚 Skills</TabsTrigger>
+                <TabsTrigger value="spells" className="text-xs px-2 py-1">🔮 Spells</TabsTrigger>
+                <TabsTrigger value="equipment" className="text-xs px-2 py-1">🛡️ Gear</TabsTrigger>
+                <TabsTrigger value="crafting" className="text-xs px-2 py-1">🔧 Craft</TabsTrigger>
+                <TabsTrigger value="loot" className="text-xs px-2 py-1">💎 Loot</TabsTrigger>
+                <TabsTrigger value="achievements" className="text-xs px-2 py-1">🏆 Achieve</TabsTrigger>
+                <TabsTrigger value="lab" className="text-xs px-2 py-1">🔬 Lab</TabsTrigger>
+                <TabsTrigger value="stats" className="text-xs px-2 py-1">📊 Stats</TabsTrigger>
+                <TabsTrigger value="debug" className="text-xs px-2 py-1">🐛 Debug</TabsTrigger>
+                <TabsTrigger value="grimoire" className="text-xs px-2 py-1">📖 Grimoire</TabsTrigger>
+              </TabsList>
 
+              <TabsContent value="spire">
                 <Suspense fallback={<TabLoadingFallback />}>
-                  <SpireTab store={store} simpleMode={true} />
+                  <SpireTab store={store} />
                 </Suspense>
+              </TabsContent>
 
-                <Card className="bg-gray-900/80 border-gray-700">
-                  <CardHeader className="pb-2">
-                    <CardTitle className="text-amber-400 game-panel-title text-xs">Activity Log</CardTitle>
-                  </CardHeader>
-                  <CardContent>
-                    <ScrollArea className="h-48">
-                      <div className="space-y-1">
-                        {(store.activityLog || []).slice(0, 50).map((entry: ActivityLogEntry, i) => {
-                          const getEventStyle = (eventType: string) => {
-                            switch (eventType) {
-                              case 'enemy_defeated':
-                              case 'floor_cleared':
-                                return 'text-green-400';
-                              case 'damage_dealt':
-                                return 'text-red-400';
-                              case 'dodge':
-                                return 'text-yellow-400';
-                              case 'armor_proc':
-                                return 'text-blue-400';
-                              case 'special_effect':
-                                return 'text-purple-400';
-                              case 'floor_transition':
-                                return 'text-cyan-400';
-                              case 'spell_cast':
-                                return 'text-amber-400';
-                              case 'golem_attack':
-                                return 'text-orange-400';
-                              case 'puzzle_solved':
-                                return 'text-pink-400';
-                              default:
-                                return 'text-gray-300';
-                            }
-                          };
+              <TabsContent value="attunements">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <AttunementsTab store={store} />
+                </Suspense>
+              </TabsContent>
 
-                          return (
-                            <div
-                              key={entry.id}
-                              className={`text-xs ${i === 0 ? 'text-gray-200 font-semibold' : getEventStyle(entry.eventType)}`}
-                            >
-                              {entry.message}
-                            </div>
-                          );
-                        })}
-                        {(store.activityLog || []).length === 0 && (
-                          <div className="text-xs text-gray-500 italic">No activity yet...</div>
-                        )}
-                      </div>
-                    </ScrollArea>
-                  </CardContent>
-                </Card>
-              </DebugName>
-            </div>
-          )}
+              <TabsContent value="golemancy">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <GolemancyTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="skills">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <SkillsTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="spells">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <SpellsTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="equipment">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <EquipmentTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="crafting">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <CraftingTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="loot">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <LootTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="achievements">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <AchievementsTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="lab">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <LabTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="stats">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <StatsTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="debug">
+                <Suspense fallback={<TabLoadingFallback />}>
+                  <DebugTab store={store} />
+                </Suspense>
+              </TabsContent>
+
+              <TabsContent value="grimoire">
+                <GrimoireTab />
+              </TabsContent>
+            </Tabs>
+          </div>
         </main>
       </div>
     </TooltipProvider>

src/components/game/GameContext.tsx

@@ -1,428 +1,10 @@
 'use client';
 
-import { createContext, useContext, useMemo, type ReactNode } from 'react';
-import { useSkillStore } from '@/lib/game/stores/skillStore';
-import { useManaStore } from '@/lib/game/stores/manaStore';
-import { usePrestigeStore } from '@/lib/game/stores/prestigeStore';
-import { useUIStore } from '@/lib/game/stores/uiStore';
-import { useCombatStore } from '@/lib/game/stores/combatStore';
-import { useGameStore, useGameLoop } from '@/lib/game/stores/gameStore';
-import { computeEffects, hasSpecial, SPECIAL_EFFECTS } from '@/lib/game/upgrade-effects';
-import { getStudySpeedMultiplier, getStudyCostMultiplier } from '@/lib/game/constants';
-import {
-  computeMaxMana,
-  computeRegen,
-  computeClickMana,
-  getMeditationBonus,
-  canAffordSpellCost,
-  calcDamage,
-  getFloorElement,
-  getBoonBonuses,
-  getIncursionStrength,
-} from '@/lib/game/utils';
-import {
-  ELEMENTS,
-  GUARDIANS,
-  SPELLS_DEF,
-  HOURS_PER_TICK,
-  TICK_MS,
-} from '@/lib/game/constants';
-import type { ElementDef, GuardianDef, SpellDef, GameAction } from '@/lib/game/types';
-
-// Define a unified store type that combines all stores
-interface UnifiedStore {
-  // From gameStore (coordinator)
-  day: number;
-  hour: number;
-  incursionStrength: number;
-  containmentWards: number;
-  initialized: boolean;
-  tick: () => void;
-  resetGame: () => void;
-  gatherMana: () => void;
-  startNewLoop: () => void;
-  
-  // From manaStore
-  rawMana: number;
-  meditateTicks: number;
-  totalManaGathered: number;
-  elements: Record<string, { current: number; max: number; unlocked: boolean }>;
-  setRawMana: (amount: number) => void;
-  addRawMana: (amount: number, max: number) => void;
-  spendRawMana: (amount: number) => boolean;
-  convertMana: (element: string, amount: number) => boolean;
-  unlockElement: (element: string, cost: number) => boolean;
-  craftComposite: (target: string, recipe: string[]) => boolean;
-  
-  // From skillStore
-  skills: Record<string, number>;
-  skillProgress: Record<string, number>;
-  skillUpgrades: Record<string, string[]>;
-  skillTiers: Record<string, number>;
-  paidStudySkills: Record<string, number>;
-  currentStudyTarget: { type: 'skill' | 'spell' | 'blueprint'; id: string; progress: number; required: number } | null;
-  parallelStudyTarget: { type: 'skill' | 'spell' | 'blueprint'; id: string; progress: number; required: number } | null;
-  setSkillLevel: (skillId: string, level: number) => void;
-  startStudyingSkill: (skillId: string, rawMana: number) => { started: boolean; cost: number };
-  startStudyingSpell: (spellId: string, rawMana: number, studyTime: number) => { started: boolean; cost: number };
-  cancelStudy: (retentionBonus: number) => void;
-  selectSkillUpgrade: (skillId: string, upgradeId: string) => void;
-  deselectSkillUpgrade: (skillId: string, upgradeId: string) => void;
-  commitSkillUpgrades: (skillId: string, upgradeIds: string[]) => void;
-  tierUpSkill: (skillId: string) => void;
-  getSkillUpgradeChoices: (skillId: string, milestone: 5 | 10) => { available: Array<{ id: string; name: string; desc: string; milestone: 5 | 10; effect: { type: string; stat?: string; value?: number; specialId?: string } }>; selected: string[] };
-  
-  // From prestigeStore
-  loopCount: number;
-  insight: number;
-  totalInsight: number;
-  loopInsight: number;
-  prestigeUpgrades: Record<string, number>;
-  memorySlots: number;
-  pactSlots: number;
-  memories: Array<{ skillId: string; level: number; tier: number; upgrades: string[] }>;
-  defeatedGuardians: number[];
-  signedPacts: number[];
-  pactRitualFloor: number | null;
-  pactRitualProgress: number;
-  doPrestige: (id: string) => void;
-  addMemory: (memory: { skillId: string; level: number; tier: number; upgrades: string[] }) => void;
-  removeMemory: (skillId: string) => void;
-  clearMemories: () => void;
-  startPactRitual: (floor: number, rawMana: number) => boolean;
-  cancelPactRitual: () => void;
-  removePact: (floor: number) => void;
-  defeatGuardian: (floor: number) => void;
-  
-  // From combatStore
-  currentFloor: number;
-  floorHP: number;
-  floorMaxHP: number;
-  maxFloorReached: number;
-  activeSpell: string;
-  currentAction: GameAction;
-  castProgress: number;
-  spells: Record<string, { learned: boolean; level: number; studyProgress?: number }>;
-  setAction: (action: GameAction) => void;
-  setSpell: (spellId: string) => void;
-  learnSpell: (spellId: string) => void;
-  advanceFloor: () => void;
-  
-  // From uiStore
-  log: string[];
-  paused: boolean;
-  gameOver: boolean;
-  victory: boolean;
-  addLog: (message: string) => void;
-  togglePause: () => void;
-  setPaused: (paused: boolean) => void;
-  setGameOver: (gameOver: boolean, victory?: boolean) => void;
-}
-
-interface GameContextValue {
-  // Unified store for backward compatibility
-  store: UnifiedStore;
-  
-  // Individual stores for direct access if needed
-  skillStore: ReturnType<typeof useSkillStore.getState>;
-  manaStore: ReturnType<typeof useManaStore.getState>;
-  prestigeStore: ReturnType<typeof usePrestigeStore.getState>;
-  uiStore: ReturnType<typeof useUIStore.getState>;
-  combatStore: ReturnType<typeof useCombatStore.getState>;
-  
-  // Computed effects from upgrades
-  upgradeEffects: ReturnType<typeof computeEffects>;
-  
-  // Derived stats
-  maxMana: number;
-  baseRegen: number;
-  clickMana: number;
-  floorElem: string;
-  floorElemDef: ElementDef | undefined;
-  isGuardianFloor: boolean;
-  currentGuardian: GuardianDef | undefined;
-  activeSpellDef: SpellDef | undefined;
-  meditationMultiplier: number;
-  incursionStrength: number;
-  studySpeedMult: number;
-  studyCostMult: number;
-  
-  // Effective regen calculations
-  effectiveRegenWithSpecials: number;
-  manaCascadeBonus: number;
-  manaWaterfallBonus: number;
-  effectiveRegen: number;
-  
-  // Has special flags
-  hasManaWaterfall: boolean;
-  hasFlowSurge: boolean;
-  hasManaOverflow: boolean;
-  hasEternalFlow: boolean;
-  
-  // DPS calculation
-  dps: number;
-  
-  // Boons
-  activeBoons: ReturnType<typeof getBoonBonuses>;
-  
-  // Helpers
-  canCastSpell: (spellId: string) => boolean;
-  hasSpecial: (effects: ReturnType<typeof computeEffects>, specialId: string) => boolean;
-  SPECIAL_EFFECTS: typeof SPECIAL_EFFECTS;
-}
-
-const GameContext = createContext<GameContextValue | null>(null);
-
-export function GameProvider({ children }: { children: ReactNode }) {
-  // Get all individual stores
-  const gameStore = useGameStore();
-  const skillState = useSkillStore();
-  const manaState = useManaStore();
-  const prestigeState = usePrestigeStore();
-  const uiState = useUIStore();
-  const combatState = useCombatStore();
-  
-  // Create unified store object for backward compatibility
-  const unifiedStore = useMemo<UnifiedStore>(() => ({
-    // From gameStore
-    day: gameStore.day,
-    hour: gameStore.hour,
-    incursionStrength: gameStore.incursionStrength,
-    containmentWards: gameStore.containmentWards,
-    initialized: gameStore.initialized,
-    tick: gameStore.tick,
-    resetGame: gameStore.resetGame,
-    gatherMana: gameStore.gatherMana,
-    startNewLoop: gameStore.startNewLoop,
-    
-    // From manaStore
-    rawMana: manaState.rawMana,
-    meditateTicks: manaState.meditateTicks,
-    totalManaGathered: manaState.totalManaGathered,
-    elements: manaState.elements,
-    setRawMana: manaState.setRawMana,
-    addRawMana: manaState.addRawMana,
-    spendRawMana: manaState.spendRawMana,
-    convertMana: manaState.convertMana,
-    unlockElement: manaState.unlockElement,
-    craftComposite: manaState.craftComposite,
-    
-    // From skillStore
-    skills: skillState.skills,
-    skillProgress: skillState.skillProgress,
-    skillUpgrades: skillState.skillUpgrades,
-    skillTiers: skillState.skillTiers,
-    paidStudySkills: skillState.paidStudySkills,
-    currentStudyTarget: skillState.currentStudyTarget,
-    parallelStudyTarget: skillState.parallelStudyTarget,
-    setSkillLevel: skillState.setSkillLevel,
-    startStudyingSkill: skillState.startStudyingSkill,
-    startStudyingSpell: skillState.startStudyingSpell,
-    cancelStudy: skillState.cancelStudy,
-    selectSkillUpgrade: skillState.selectSkillUpgrade,
-    deselectSkillUpgrade: skillState.deselectSkillUpgrade,
-    commitSkillUpgrades: skillState.commitSkillUpgrades,
-    tierUpSkill: skillState.tierUpSkill,
-    getSkillUpgradeChoices: skillState.getSkillUpgradeChoices,
-    
-    // From prestigeStore
-    loopCount: prestigeState.loopCount,
-    insight: prestigeState.insight,
-    totalInsight: prestigeState.totalInsight,
-    loopInsight: prestigeState.loopInsight,
-    prestigeUpgrades: prestigeState.prestigeUpgrades,
-    memorySlots: prestigeState.memorySlots,
-    pactSlots: prestigeState.pactSlots,
-    memories: prestigeState.memories,
-    defeatedGuardians: prestigeState.defeatedGuardians,
-    signedPacts: prestigeState.signedPacts,
-    pactRitualFloor: prestigeState.pactRitualFloor,
-    pactRitualProgress: prestigeState.pactRitualProgress,
-    doPrestige: prestigeState.doPrestige,
-    addMemory: prestigeState.addMemory,
-    removeMemory: prestigeState.removeMemory,
-    clearMemories: prestigeState.clearMemories,
-    startPactRitual: prestigeState.startPactRitual,
-    cancelPactRitual: prestigeState.cancelPactRitual,
-    removePact: prestigeState.removePact,
-    defeatGuardian: prestigeState.defeatGuardian,
-    
-    // From combatStore
-    currentFloor: combatState.currentFloor,
-    floorHP: combatState.floorHP,
-    floorMaxHP: combatState.floorMaxHP,
-    maxFloorReached: combatState.maxFloorReached,
-    activeSpell: combatState.activeSpell,
-    currentAction: combatState.currentAction,
-    castProgress: combatState.castProgress,
-    spells: combatState.spells,
-    setAction: combatState.setAction,
-    setSpell: combatState.setSpell,
-    learnSpell: combatState.learnSpell,
-    advanceFloor: combatState.advanceFloor,
-    
-    // From uiStore
-    log: uiState.logs,
-    paused: uiState.paused,
-    gameOver: uiState.gameOver,
-    victory: uiState.victory,
-    addLog: uiState.addLog,
-    togglePause: uiState.togglePause,
-    setPaused: uiState.setPaused,
-    setGameOver: uiState.setGameOver,
-  }), [gameStore, skillState, manaState, prestigeState, uiState, combatState]);
-  
-  // Computed effects from upgrades
-  const upgradeEffects = useMemo(
-    () => computeEffects(skillState.skillUpgrades || {}, skillState.skillTiers || {}),
-    [skillState.skillUpgrades, skillState.skillTiers]
-  );
-  
-  // Create a minimal state object for compute functions
-  const stateForCompute = useMemo(() => ({
-    skills: skillState.skills,
-    prestigeUpgrades: prestigeState.prestigeUpgrades,
-    skillUpgrades: skillState.skillUpgrades,
-    skillTiers: skillState.skillTiers,
-    signedPacts: prestigeState.signedPacts,
-    rawMana: manaState.rawMana,
-    meditateTicks: manaState.meditateTicks,
-    incursionStrength: gameStore.incursionStrength,
-  }), [skillState, prestigeState, manaState, gameStore.incursionStrength]);
-  
-  // Derived stats
-  const maxMana = useMemo(
-    () => computeMaxMana(stateForCompute, upgradeEffects),
-    [stateForCompute, upgradeEffects]
-  );
-  
-  const baseRegen = useMemo(
-    () => computeRegen(stateForCompute, upgradeEffects),
-    [stateForCompute, upgradeEffects]
-  );
-  
-  const clickMana = useMemo(() => computeClickMana(stateForCompute), [stateForCompute]);
-  
-  // Floor element from combat store
-  const floorElem = useMemo(() => getFloorElement(combatState.currentFloor), [combatState.currentFloor]);
-  const floorElemDef = ELEMENTS[floorElem];
-  const isGuardianFloor = !!GUARDIANS[combatState.currentFloor];
-  const currentGuardian = GUARDIANS[combatState.currentFloor];
-  const activeSpellDef = SPELLS_DEF[combatState.activeSpell];
-  
-  const meditationMultiplier = useMemo(
-    () => getMeditationBonus(manaState.meditateTicks, skillState.skills, upgradeEffects.meditationEfficiency),
-    [manaState.meditateTicks, skillState.skills, upgradeEffects.meditationEfficiency]
-  );
-  
-  const incursionStrength = useMemo(
-    () => getIncursionStrength(gameStore.day, gameStore.hour),
-    [gameStore.day, gameStore.hour]
-  );
-  
-  const studySpeedMult = useMemo(
-    () => getStudySpeedMultiplier(skillState.skills),
-    [skillState.skills]
-  );
-  
-  const studyCostMult = useMemo(
-    () => getStudyCostMultiplier(skillState.skills),
-    [skillState.skills]
-  );
-  
-  // Effective regen calculations
-  const effectiveRegenWithSpecials = baseRegen * (1 - incursionStrength);
-  
-  const manaCascadeBonus = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_CASCADE)
-    ? Math.floor(maxMana / 100) * 0.1
-    : 0;
-  
-  const manaWaterfallBonus = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_WATERFALL)
-    ? Math.floor(maxMana / 100) * 0.25
-    : 0;
-  
-  const effectiveRegen = (effectiveRegenWithSpecials + manaCascadeBonus + manaWaterfallBonus) * meditationMultiplier;
-  
-  // Has special flags for UI
-  const hasManaWaterfall = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_WATERFALL);
-  const hasFlowSurge = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.FLOW_SURGE);
-  const hasManaOverflow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_OVERFLOW);
-  const hasEternalFlow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.ETERNAL_FLOW);
-  
-  // Active boons
-  const activeBoons = useMemo(
-    () => getBoonBonuses(prestigeState.signedPacts),
-    [prestigeState.signedPacts]
-  );
-  
-  // DPS calculation - based on active spell, attack speed, and damage
-  const dps = useMemo(() => {
-    if (!activeSpellDef) return 0;
-    const baseDmg = calcDamage(
-      { skills: skillState.skills, signedPacts: prestigeState.signedPacts },
-      combatState.activeSpell,
-      floorElem
-    );
-    const dmgWithEffects = baseDmg * upgradeEffects.baseDamageMultiplier + upgradeEffects.baseDamageBonus;
-    const attackSpeed = (1 + (skillState.skills.quickCast || 0) * 0.05) * upgradeEffects.attackSpeedMultiplier;
-    const castSpeed = activeSpellDef.castSpeed || 1;
-    return dmgWithEffects * attackSpeed * castSpeed;
-  }, [activeSpellDef, skillState.skills, prestigeState.signedPacts, floorElem, upgradeEffects, combatState.activeSpell]);
-  
-  // Helper functions
-  const canCastSpell = (spellId: string): boolean => {
-    const spell = SPELLS_DEF[spellId];
-    if (!spell) return false;
-    return canAffordSpellCost(spell.cost, manaState.rawMana, manaState.elements);
-  };
-  
-  const value: GameContextValue = {
-    store: unifiedStore,
-    skillStore: skillState,
-    manaStore: manaState,
-    prestigeStore: prestigeState,
-    uiStore: uiState,
-    combatStore: combatState,
-    upgradeEffects,
-    maxMana,
-    baseRegen,
-    clickMana,
-    floorElem,
-    floorElemDef,
-    isGuardianFloor,
-    currentGuardian,
-    activeSpellDef,
-    meditationMultiplier,
-    incursionStrength,
-    studySpeedMult,
-    studyCostMult,
-    effectiveRegenWithSpecials,
-    manaCascadeBonus,
-    manaWaterfallBonus,
-    effectiveRegen,
-    hasManaWaterfall,
-    hasFlowSurge,
-    hasManaOverflow,
-    hasEternalFlow,
-    dps,
-    activeBoons,
-    canCastSpell,
-    hasSpecial,
-    SPECIAL_EFFECTS,
-  };
-
-  return <GameContext.Provider value={value}>{children}</GameContext.Provider>;
-}
-
-export function useGameContext() {
-  const context = useContext(GameContext);
-  if (!context) {
-    throw new Error('useGameContext must be used within a GameProvider');
-  }
-  return context;
-}
-
-GameProvider.displayName = "GameProvider";
+// Re-export everything from the modular GameContext files
+export { GameProvider, GameProvider as default } from './GameContext/Provider';
+export { useGameContext } from './GameContext/hooks';
+export { GameContext } from './GameContext/context-create';
+export type { GameContextValue, UnifiedStore } from './GameContext/types';
 
 // Re-export useGameLoop for convenience
-export { useGameLoop };
+export { useGameLoop } from '@/lib/game/stores/gameHooks';

src/components/game/GameContext/Provider.tsx

@@ -0,0 +1,287 @@
+'use client';
+
+import { useMemo, type ReactNode } from 'react';
+import { useSkillStore } from '@/lib/game/stores/skillStore';
+import { useManaStore } from '@/lib/game/stores/manaStore';
+import { usePrestigeStore } from '@/lib/game/stores/prestigeStore';
+import { useUIStore } from '@/lib/game/stores/uiStore';
+import { useCombatStore } from '@/lib/game/stores/combatStore';
+import { useGameStore } from '@/lib/game/stores/gameStore';
+import { computeEffects, hasSpecial, SPECIAL_EFFECTS } from '@/lib/game/upgrade-effects';
+import { getStudySpeedMultiplier, getStudyCostMultiplier } from '@/lib/game/constants';
+import {
+  computeMaxMana,
+  computeRegen,
+  computeClickMana,
+  getMeditationBonus,
+  canAffordSpellCost,
+  calcDamage,
+  getFloorElement,
+  getBoonBonuses,
+  getIncursionStrength,
+} from '@/lib/game/utils';
+import {
+  ELEMENTS,
+  GUARDIANS,
+  SPELLS_DEF,
+} from '@/lib/game/constants';
+import type { ElementDef, GuardianDef, SpellDef, GameAction } from '@/lib/game/types';
+import type { UnifiedStore, GameContextValue } from './types';
+import { GameContext } from './context-create';
+
+function createUnifiedStore(
+  gameStore: ReturnType<typeof useGameStore.getState>,
+  skillState: ReturnType<typeof useSkillStore.getState>,
+  manaState: ReturnType<typeof useManaStore.getState>,
+  prestigeState: ReturnType<typeof usePrestigeStore.getState>,
+  uiState: ReturnType<typeof useUIStore.getState>,
+  combatState: ReturnType<typeof useCombatStore.getState>
+): UnifiedStore {
+  return {
+    // From gameStore
+    day: gameStore.day,
+    hour: gameStore.hour,
+    incursionStrength: gameStore.incursionStrength,
+    containmentWards: gameStore.containmentWards,
+    initialized: gameStore.initialized,
+    tick: gameStore.tick,
+    resetGame: gameStore.resetGame,
+    gatherMana: gameStore.gatherMana,
+    startNewLoop: gameStore.startNewLoop,
+    
+    // From manaStore
+    rawMana: manaState.rawMana,
+    meditateTicks: manaState.meditateTicks,
+    totalManaGathered: manaState.totalManaGathered,
+    elements: manaState.elements,
+    setRawMana: manaState.setRawMana,
+    addRawMana: manaState.addRawMana,
+    spendRawMana: manaState.spendRawMana,
+    convertMana: manaState.convertMana,
+    unlockElement: manaState.unlockElement,
+    craftComposite: manaState.craftComposite,
+    
+    // From skillStore
+    skills: skillState.skills,
+    skillProgress: skillState.skillProgress,
+    skillUpgrades: skillState.skillUpgrades,
+    skillTiers: skillState.skillTiers,
+    paidStudySkills: skillState.paidStudySkills,
+    currentStudyTarget: skillState.currentStudyTarget,
+    parallelStudyTarget: skillState.parallelStudyTarget,
+    setSkillLevel: skillState.setSkillLevel,
+    startStudyingSkill: skillState.startStudyingSkill,
+    startStudyingSpell: skillState.startStudyingSpell,
+    cancelStudy: skillState.cancelStudy,
+    selectSkillUpgrade: skillState.selectSkillUpgrade,
+    deselectSkillUpgrade: skillState.deselectSkillUpgrade,
+    commitSkillUpgrades: skillState.commitSkillUpgrades,
+    tierUpSkill: skillState.tierUpSkill,
+    getSkillUpgradeChoices: skillState.getSkillUpgradeChoices,
+    
+    // From prestigeStore
+    loopCount: prestigeState.loopCount,
+    insight: prestigeState.insight,
+    totalInsight: prestigeState.totalInsight,
+    loopInsight: prestigeState.loopInsight,
+    prestigeUpgrades: prestigeState.prestigeUpgrades,
+    memorySlots: prestigeState.memorySlots,
+    pactSlots: prestigeState.pactSlots,
+    memories: prestigeState.memories,
+    defeatedGuardians: prestigeState.defeatedGuardians,
+    signedPacts: prestigeState.signedPacts,
+    pactRitualFloor: prestigeState.pactRitualFloor,
+    pactRitualProgress: prestigeState.pactRitualProgress,
+    doPrestige: prestigeState.doPrestige,
+    addMemory: prestigeState.addMemory,
+    removeMemory: prestigeState.removeMemory,
+    clearMemories: prestigeState.clearMemories,
+    startPactRitual: prestigeState.startPactRitual,
+    cancelPactRitual: prestigeState.cancelPactRitual,
+    removePact: prestigeState.removePact,
+    defeatGuardian: prestigeState.defeatGuardian,
+    
+    // From combatStore
+    currentFloor: combatState.currentFloor,
+    floorHP: combatState.floorHP,
+    floorMaxHP: combatState.floorMaxHP,
+    maxFloorReached: combatState.maxFloorReached,
+    activeSpell: combatState.activeSpell,
+    currentAction: combatState.currentAction,
+    castProgress: combatState.castProgress,
+    spells: combatState.spells,
+    setAction: combatState.setAction,
+    setSpell: combatState.setSpell,
+    learnSpell: combatState.learnSpell,
+    advanceFloor: combatState.advanceFloor,
+    
+    // From uiStore
+    log: uiState.logs,
+    paused: uiState.paused,
+    gameOver: uiState.gameOver,
+    victory: uiState.victory,
+    addLog: uiState.addLog,
+    togglePause: uiState.togglePause,
+    setPaused: uiState.setPaused,
+    setGameOver: uiState.setGameOver,
+  };
+}
+
+export function GameProvider({ children }: { children: ReactNode }) {
+  // Get all individual stores
+  const gameStore = useGameStore();
+  const skillState = useSkillStore();
+  const manaState = useManaStore();
+  const prestigeState = usePrestigeStore();
+  const uiState = useUIStore();
+  const combatState = useCombatStore();
+  
+  // Create unified store object for backward compatibility
+  const unifiedStore = useMemo(
+    () => createUnifiedStore(gameStore, skillState, manaState, prestigeState, uiState, combatState),
+    [gameStore, skillState, manaState, prestigeState, uiState, combatState]
+  );
+  
+  // Computed effects from upgrades
+  const upgradeEffects = useMemo(
+    () => computeEffects(skillState.skillUpgrades || {}, skillState.skillTiers || {}),
+    [skillState.skillUpgrades, skillState.skillTiers]
+  );
+  
+  // Create a minimal state object for compute functions
+  const stateForCompute = useMemo(() => ({
+    skills: skillState.skills,
+    prestigeUpgrades: prestigeState.prestigeUpgrades,
+    skillUpgrades: skillState.skillUpgrades,
+    skillTiers: skillState.skillTiers,
+    signedPacts: prestigeState.signedPacts,
+    rawMana: manaState.rawMana,
+    meditateTicks: manaState.meditateTicks,
+    incursionStrength: gameStore.incursionStrength,
+  }), [skillState, prestigeState, manaState, gameStore.incursionStrength]);
+  
+  // Derived stats
+  const maxMana = useMemo(
+    () => computeMaxMana(stateForCompute, upgradeEffects),
+    [stateForCompute, upgradeEffects]
+  );
+  
+  const baseRegen = useMemo(
+    () => computeRegen(stateForCompute, upgradeEffects),
+    [stateForCompute, upgradeEffects]
+  );
+  
+  const clickMana = useMemo(() => computeClickMana(stateForCompute), [stateForCompute]);
+  
+  // Floor element from combat store
+  const floorElem = useMemo(() => getFloorElement(combatState.currentFloor), [combatState.currentFloor]);
+  const floorElemDef = ELEMENTS[floorElem];
+  const isGuardianFloor = !!GUARDIANS[combatState.currentFloor];
+  const currentGuardian = GUARDIANS[combatState.currentFloor];
+  const activeSpellDef = SPELLS_DEF[combatState.activeSpell];
+  
+  const meditationMultiplier = useMemo(
+    () => getMeditationBonus(manaState.meditateTicks, skillState.skills, upgradeEffects.meditationEfficiency),
+    [manaState.meditateTicks, skillState.skills, upgradeEffects.meditationEfficiency]
+  );
+  
+  const incursionStrength = useMemo(
+    () => getIncursionStrength(gameStore.day, gameStore.hour),
+    [gameStore.day, gameStore.hour]
+  );
+  
+  const studySpeedMult = useMemo(
+    () => getStudySpeedMultiplier(skillState.skills),
+    [skillState.skills]
+  );
+  
+  const studyCostMult = useMemo(
+    () => getStudyCostMultiplier(skillState.skills),
+    [skillState.skills]
+  );
+  
+  // Effective regen calculations
+  const effectiveRegenWithSpecials = baseRegen * (1 - incursionStrength);
+  
+  const manaCascadeBonus = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_CASCADE)
+    ? Math.floor(maxMana / 100) * 0.1
+    : 0;
+  
+  const manaWaterfallBonus = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_WATERFALL)
+    ? Math.floor(maxMana / 100) * 0.25
+    : 0;
+  
+  const effectiveRegen = (effectiveRegenWithSpecials + manaCascadeBonus + manaWaterfallBonus) * meditationMultiplier;
+  
+  // Has special flags for UI
+  const hasManaWaterfall = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_WATERFALL);
+  const hasFlowSurge = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.FLOW_SURGE);
+  const hasManaOverflow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_OVERFLOW);
+  const hasEternalFlow = hasSpecial(upgradeEffects, SPECIAL_EFFECTS.ETERNAL_FLOW);
+  
+  // Active boons
+  const activeBoons = useMemo(
+    () => getBoonBonuses(prestigeState.signedPacts),
+    [prestigeState.signedPacts]
+  );
+  
+  // DPS calculation - based on active spell, attack speed, and damage
+  const dps = useMemo(() => {
+    if (!activeSpellDef) return 0;
+    const baseDmg = calcDamage(
+      { skills: skillState.skills, signedPacts: prestigeState.signedPacts },
+      combatState.activeSpell,
+      floorElem
+    );
+    const dmgWithEffects = baseDmg * upgradeEffects.baseDamageMultiplier + upgradeEffects.baseDamageBonus;
+    const attackSpeed = (1 + (skillState.skills.quickCast || 0) * 0.05) * upgradeEffects.attackSpeedMultiplier;
+    const castSpeed = activeSpellDef.castSpeed || 1;
+    return dmgWithEffects * attackSpeed * castSpeed;
+  }, [activeSpellDef, skillState.skills, prestigeState.signedPacts, floorElem, upgradeEffects, combatState.activeSpell]);
+  
+  // Helper functions
+  const canCastSpell = (spellId: string): boolean => {
+    const spell = SPELLS_DEF[spellId];
+    if (!spell) return false;
+    return canAffordSpellCost(spell.cost, manaState.rawMana, manaState.elements);
+  };
+  
+  const value: GameContextValue = {
+    store: unifiedStore,
+    skillStore: skillState,
+    manaStore: manaState,
+    prestigeStore: prestigeState,
+    uiStore: uiState,
+    combatStore: combatState,
+    upgradeEffects,
+    maxMana,
+    baseRegen,
+    clickMana,
+    floorElem,
+    floorElemDef,
+    isGuardianFloor,
+    currentGuardian,
+    activeSpellDef,
+    meditationMultiplier,
+    incursionStrength,
+    studySpeedMult,
+    studyCostMult,
+    effectiveRegenWithSpecials,
+    manaCascadeBonus,
+    manaWaterfallBonus,
+    effectiveRegen,
+    hasManaWaterfall,
+    hasFlowSurge,
+    hasManaOverflow,
+    hasEternalFlow,
+    dps,
+    activeBoons,
+    canCastSpell,
+    hasSpecial,
+    SPECIAL_EFFECTS,
+  };
+
+  return <GameContext.Provider value={value}>{children}</GameContext.Provider>;
+}
+
+GameProvider.displayName = "GameProvider";

src/components/game/GameContext/context-create.ts

@@ -0,0 +1,4 @@
+import { createContext } from 'react';
+import type { GameContextValue } from './types';
+
+export const GameContext = createContext<GameContextValue | null>(null);

src/components/game/GameContext/hooks.ts

@@ -0,0 +1,13 @@
+'use client';
+
+import { useContext } from 'react';
+import { GameContext } from './context-create';
+import type { GameContextValue } from './types';
+
+export function useGameContext(): GameContextValue {
+  const context = useContext(GameContext);
+  if (!context) {
+    throw new Error('useGameContext must be used within a GameProvider');
+  }
+  return context;
+}

src/components/game/GameContext/types.ts

@@ -0,0 +1,159 @@
+import type { ElementDef, GuardianDef, SpellDef, GameAction } from '@/lib/game/types';
+import { useSkillStore } from '@/lib/game/stores/skillStore';
+import { useManaStore } from '@/lib/game/stores/manaStore';
+import { usePrestigeStore } from '@/lib/game/stores/prestigeStore';
+import { useUIStore } from '@/lib/game/stores/uiStore';
+import { useCombatStore } from '@/lib/game/stores/combatStore';
+import { computeEffects, hasSpecial, SPECIAL_EFFECTS } from '@/lib/game/upgrade-effects';
+import { getBoonBonuses } from '@/lib/game/utils';
+
+// Define a unified store type that combines all stores
+export interface UnifiedStore {
+  // From gameStore (coordinator)
+  day: number;
+  hour: number;
+  incursionStrength: number;
+  containmentWards: number;
+  initialized: boolean;
+  tick: () => void;
+  resetGame: () => void;
+  gatherMana: () => void;
+  startNewLoop: () => void;
+  
+  // From manaStore
+  rawMana: number;
+  meditateTicks: number;
+  totalManaGathered: number;
+  elements: Record<string, { current: number; max: number; unlocked: boolean }>;
+  setRawMana: (amount: number) => void;
+  addRawMana: (amount: number, max: number) => void;
+  spendRawMana: (amount: number) => boolean;
+  convertMana: (element: string, amount: number) => boolean;
+  unlockElement: (element: string, cost: number) => boolean;
+  craftComposite: (target: string, recipe: string[]) => boolean;
+  
+  // From skillStore
+  skills: Record<string, number>;
+  skillProgress: Record<string, number>;
+  skillUpgrades: Record<string, string[]>;
+  skillTiers: Record<string, number>;
+  paidStudySkills: Record<string, number>;
+  currentStudyTarget: { type: 'skill' | 'spell' | 'blueprint'; id: string; progress: number; required: number } | null;
+  parallelStudyTarget: { type: 'skill' | 'spell' | 'blueprint'; id: string; progress: number; required: number } | null;
+  setSkillLevel: (skillId: string, level: number) => void;
+  startStudyingSkill: (skillId: string, rawMana: number) => { started: boolean; cost: number };
+  startStudyingSpell: (spellId: string, rawMana: number, studyTime: number) => { started: boolean; cost: number };
+  cancelStudy: (retentionBonus: number) => void;
+  selectSkillUpgrade: (skillId: string, upgradeId: string) => void;
+  deselectSkillUpgrade: (skillId: string, upgradeId: string) => void;
+  commitSkillUpgrades: (skillId: string, upgradeIds: string[]) => void;
+  tierUpSkill: (skillId: string) => void;
+  getSkillUpgradeChoices: (skillId: string, milestone: 5 | 10) => { 
+    available: Array<{ 
+      id: string; 
+      name: string; 
+      desc: string; 
+      milestone: 5 | 10; 
+      effect: { type: string; stat?: string; value?: number; specialId?: string } 
+    }>; 
+    selected: string[] 
+  };
+  
+  // From prestigeStore
+  loopCount: number;
+  insight: number;
+  totalInsight: number;
+  loopInsight: number;
+  prestigeUpgrades: Record<string, number>;
+  memorySlots: number;
+  pactSlots: number;
+  memories: Array<{ skillId: string; level: number; tier: number; upgrades: string[] }>;
+  defeatedGuardians: number[];
+  signedPacts: number[];
+  pactRitualFloor: number | null;
+  pactRitualProgress: number;
+  doPrestige: (id: string) => void;
+  addMemory: (memory: { skillId: string; level: number; tier: number; upgrades: string[] }) => void;
+  removeMemory: (skillId: string) => void;
+  clearMemories: () => void;
+  startPactRitual: (floor: number, rawMana: number) => boolean;
+  cancelPactRitual: () => void;
+  removePact: (floor: number) => void;
+  defeatGuardian: (floor: number) => void;
+  
+  // From combatStore
+  currentFloor: number;
+  floorHP: number;
+  floorMaxHP: number;
+  maxFloorReached: number;
+  activeSpell: string;
+  currentAction: GameAction;
+  castProgress: number;
+  spells: Record<string, { learned: boolean; level: number; studyProgress?: number }>;
+  setAction: (action: GameAction) => void;
+  setSpell: (spellId: string) => void;
+  learnSpell: (spellId: string) => void;
+  advanceFloor: () => void;
+  
+  // From uiStore
+  log: string[];
+  paused: boolean;
+  gameOver: boolean;
+  victory: boolean;
+  addLog: (message: string) => void;
+  togglePause: () => void;
+  setPaused: (paused: boolean) => void;
+  setGameOver: (gameOver: boolean, victory?: boolean) => void;
+}
+
+export interface GameContextValue {
+  // Unified store for backward compatibility
+  store: UnifiedStore;
+  
+  // Individual stores for direct access if needed
+  skillStore: ReturnType<typeof useSkillStore.getState>;
+  manaStore: ReturnType<typeof useManaStore.getState>;
+  prestigeStore: ReturnType<typeof usePrestigeStore.getState>;
+  uiStore: ReturnType<typeof useUIStore.getState>;
+  combatStore: ReturnType<typeof useCombatStore.getState>;
+  
+  // Computed effects from upgrades
+  upgradeEffects: ReturnType<typeof computeEffects>;
+  
+  // Derived stats
+  maxMana: number;
+  baseRegen: number;
+  clickMana: number;
+  floorElem: string;
+  floorElemDef: ElementDef | undefined;
+  isGuardianFloor: boolean;
+  currentGuardian: GuardianDef | undefined;
+  activeSpellDef: SpellDef | undefined;
+  meditationMultiplier: number;
+  incursionStrength: number;
+  studySpeedMult: number;
+  studyCostMult: number;
+  
+  // Effective regen calculations
+  effectiveRegenWithSpecials: number;
+  manaCascadeBonus: number;
+  manaWaterfallBonus: number;
+  effectiveRegen: number;
+  
+  // Has special flags
+  hasManaWaterfall: boolean;
+  hasFlowSurge: boolean;
+  hasManaOverflow: boolean;
+  hasEternalFlow: boolean;
+  
+  // DPS calculation
+  dps: number;
+  
+  // Boons
+  activeBoons: ReturnType<typeof getBoonBonuses>;
+  
+  // Helpers
+  canCastSpell: (spellId: string) => boolean;
+  hasSpecial: (effects: ReturnType<typeof computeEffects>, specialId: string) => boolean;
+  SPECIAL_EFFECTS: typeof SPECIAL_EFFECTS;
+}

src/components/game/LootInventory/BlueprintsSection.tsx

@@ -0,0 +1,46 @@
+'use client';
+
+import { Scroll } from 'lucide-react';
+import { Badge } from '@/components/ui/badge';
+import { LOOT_DROPS } from '@/lib/game/data/loot-drops';
+import { RARITY_CSS_VAR, RARITY_GLOW_CSS_VAR } from './types';
+
+interface BlueprintsSectionProps {
+  blueprints: string[];
+}
+
+export function BlueprintsSection({ blueprints }: BlueprintsSectionProps) {
+  if (blueprints.length === 0) return null;
+  
+  return (
+    <div>
+      <div className="text-xs text-[var(--text-muted)] mb-2 flex items-center gap-1">
+        <Scroll className="w-3 h-3" />
+        Blueprints (permanent)
+      </div>
+      <div className="flex flex-wrap gap-1">
+        {blueprints.map((id) => {
+          const drop = LOOT_DROPS[id];
+          if (!drop) return null;
+          const rarityColor = RARITY_CSS_VAR[drop.rarity] || 'var(--rarity-common)';
+          return (
+            <Badge
+              key={id}
+              className="text-xs"
+              style={{
+                backgroundColor: `${RARITY_GLOW_CSS_VAR[drop.rarity] || 'var(--rarity-common-glow)'}`,
+                color: rarityColor,
+                borderColor: rarityColor,
+              }}
+            >
+              {drop.name}
+            </Badge>
+          );
+        })}
+      </div>
+      <div className="text-xs text-[var(--text-muted)] mt-1 italic">
+        Blueprints are permanent unlocks - use them to craft equipment
+      </div>
+    </div>
+  );
+}

src/components/game/LootInventory/EquipmentItem.tsx

@@ -0,0 +1,87 @@
+'use client';
+
+import { Package, Trash2 } from 'lucide-react';
+import type { EquipmentInstance } from '@/lib/game/types';
+import { EQUIPMENT_TYPES } from '@/lib/game/data/equipment';
+import { CATEGORY_ICONS } from './icons';
+import { RARITY_CSS_VAR, RARITY_GLOW_CSS_VAR } from './types';
+import { ActionButton } from '@/components/ui/action-button';
+
+interface EquipmentItemProps {
+  instanceId: string;
+  instance: EquipmentInstance;
+  onDelete?: (instanceId: string) => void;
+}
+
+export function EquipmentItem({ instanceId, instance, onDelete }: EquipmentItemProps) {
+  const type = EQUIPMENT_TYPES[instance.typeId];
+  const Icon = type ? CATEGORY_ICONS[type.category] || Package : Package;
+  const rarityColor = RARITY_CSS_VAR[instance.rarity] || 'var(--rarity-common)';
+  const rarityGlow = RARITY_GLOW_CSS_VAR[instance.rarity] || 'var(--rarity-common-glow)';
+  
+  return (
+    <div
+      className="p-2 rounded border bg-[var(--bg-sunken)] group"
+      style={{
+        borderColor: rarityColor,
+        backgroundColor: rarityGlow,
+      }}
+    >
+      <div className="flex items-start justify-between">
+        <div className="flex items-start gap-2">
+          <Icon className="w-4 h-4 mt-0.5" style={{ color: rarityColor }} />
+          <div>
+            <div className="text-xs font-semibold" style={{ color: rarityColor }}>
+              {instance.name}
+            </div>
+            <div className="text-xs text-[var(--text-secondary)]">
+              {type?.name} • {instance.usedCapacity}/{instance.totalCapacity} cap
+            </div>
+            <div className="text-xs text-[var(--text-muted)] capitalize">
+              {instance.rarity} • {instance.enchantments.length} enchants
+            </div>
+          </div>
+        </div>
+        {onDelete && (
+          <ActionButton
+            variant="ghost"
+            size="sm"
+            className="h-5 w-5 p-0 opacity-0 group-hover:opacity-100 text-[var(--color-danger)] hover:text-[var(--interactive-danger-hover)] hover:bg-[var(--interactive-danger)]/20"
+            onClick={() => onDelete(instanceId)}
+            aria-label={`Delete ${instance.name}`}
+          >
+            <Trash2 className="w-3 h-3" />
+          </ActionButton>
+        )}
+      </div>
+    </div>
+  );
+}
+
+interface EquipmentSectionProps {
+  equipment: [string, EquipmentInstance][];
+  onDeleteEquipment?: (instanceId: string) => void;
+}
+
+export function EquipmentSection({ equipment, onDeleteEquipment }: EquipmentSectionProps) {
+  if (equipment.length === 0) return null;
+  
+  return (
+    <div>
+      <div className="text-xs text-[var(--text-muted)] mb-2 flex items-center gap-1">
+        <Package className="w-3 h-3" />
+        Equipment
+      </div>
+      <div className="space-y-2">
+        {equipment.map(([id, instance]) => (
+          <EquipmentItem
+            key={id}
+            instanceId={id}
+            instance={instance}
+            onDelete={onDeleteEquipment}
+          />
+        ))}
+      </div>
+    </div>
+  );
+}

src/components/game/LootInventory/EssenceItem.tsx

@@ -0,0 +1,55 @@
+'use client';
+
+import { Droplet } from 'lucide-react';
+import { ElementBadge } from '@/components/ui/element-badge';
+import type { ElementState } from '@/lib/game/types';
+import { ELEMENTS } from '@/lib/game/constants';
+
+interface EssenceItemProps {
+  elementId: string;
+  state: ElementState;
+}
+
+export function EssenceItem({ elementId, state }: EssenceItemProps) {
+  const elem = ELEMENTS[elementId];
+  if (!elem) return null;
+  
+  return (
+    <div
+      className="p-2 rounded border bg-[var(--bg-sunken)]"
+      style={{
+        borderColor: `var(--mana-${elementId})`,
+        backgroundColor: `var(--mana-${elementId})20`,
+      }}
+    >
+      <div className="flex items-center gap-1">
+        <ElementBadge element={elementId} showIcon={true} size="sm" />
+      </div>
+      <div className="text-xs text-[var(--text-secondary)] mt-1">
+        {state.current} / {state.max}
+      </div>
+    </div>
+  );
+}
+
+interface EssenceSectionProps {
+  essence: [string, ElementState][];
+}
+
+export function EssenceSection({ essence }: EssenceSectionProps) {
+  if (essence.length === 0) return null;
+  
+  return (
+    <div>
+      <div className="text-xs text-[var(--text-muted)] mb-2 flex items-center gap-1">
+        <Droplet className="w-3 h-3" />
+        Elemental Essence
+      </div>
+      <div className="grid grid-cols-2 gap-2">
+        {essence.map(([id, state]) => (
+          <EssenceItem key={id} elementId={id} state={state} />
+        ))}
+      </div>
+    </div>
+  );
+}

src/components/game/LootInventory/LootInventoryDisplay.tsx

@@ -8,13 +8,11 @@ import { ScrollArea } from '@/components/ui/scroll-area';
 import { Separator } from '@/components/ui/separator';
 import { Input } from '@/components/ui/input';
 import { 
-  Gem, Sparkles, Scroll, Droplet, Trash2, Search, 
-  Package, Sword, Shield, Shirt, Crown, ArrowUpDown,
-  Wrench, AlertTriangle
+  Gem, Search, ArrowUpDown, AlertTriangle
 } from 'lucide-react';
 import { ElementBadge } from '@/components/ui/element-badge';
 import type { LootInventory as LootInventoryType, EquipmentInstance, ElementState } from '@/lib/game/types';
-import { LOOT_DROPS, RARITY_COLORS } from '@/lib/game/data/loot-drops';
+import { LOOT_DROPS } from '@/lib/game/data/loot-drops';
 import { EQUIPMENT_TYPES } from '@/lib/game/data/equipment';
 import { ELEMENTS } from '@/lib/game/constants';
 import { useGameToast } from '@/components/game/GameToast';
@@ -29,6 +27,12 @@ import {
   AlertDialogTitle,
 } from '@/components/ui/alert-dialog';
 
+import { type SortMode, type FilterMode, RARITY_ORDER } from './types';
+import { MaterialsSection } from './MaterialItem';
+import { EssenceSection } from './EssenceItem';
+import { BlueprintsSection } from './BlueprintsSection';
+import { EquipmentSection } from './EquipmentItem';
+
 interface LootInventoryProps {
   inventory: LootInventoryType;
   elements?: Record<string, ElementState>;
@@ -37,49 +41,6 @@ interface LootInventoryProps {
   onDeleteEquipment?: (instanceId: string) => void;
 }
 
-type SortMode = 'name' | 'rarity' | 'count';
-type FilterMode = 'all' | 'materials' | 'essence' | 'blueprints' | 'equipment';
-
-const RARITY_ORDER = {
-  common: 0,
-  uncommon: 1,
-  rare: 2,
-  epic: 3,
-  legendary: 4,
-  mythic: 5,
-};
-
-// Map rarity to CSS variable for colors
-const RARITY_CSS_VAR: Record<string, string> = {
-  common: 'var(--rarity-common)',
-  uncommon: 'var(--rarity-uncommon)',
-  rare: 'var(--rarity-rare)',
-  epic: 'var(--rarity-epic)',
-  legendary: 'var(--rarity-legendary)',
-  mythic: 'var(--rarity-mythic)',
-};
-
-// Map rarity to CSS variable for glow/background
-const RARITY_GLOW_CSS_VAR: Record<string, string> = {
-  common: 'var(--rarity-common-glow)',
-  uncommon: 'var(--rarity-uncommon-glow)',
-  rare: 'var(--rarity-rare-glow)',
-  epic: 'var(--rarity-epic-glow)',
-  legendary: 'var(--rarity-legendary-glow)',
-  mythic: 'var(--rarity-mythic-glow)',
-};
-
-const CATEGORY_ICONS: Record<string, typeof Sword> = {
-  caster: Sword,
-  shield: Shield,
-  catalyst: Sparkles,
-  head: Crown,
-  body: Shirt,
-  hands: Wrench,
-  feet: Package,
-  accessory: Gem,
-};
-
 export function LootInventoryDisplay({ 
   inventory, 
   elements,
@@ -131,7 +92,7 @@ export function LootInventoryDisplay({
     ? Object.entries(elements)
         .filter(([id, state]) => {
           if (!state.unlocked || state.current <= 0) return false;
-          if (id === 'transference') return false; // Transference is not loot
+          if (id === 'transference') return false;
           if (searchTerm && !ELEMENTS[id]?.name.toLowerCase().includes(searchTerm.toLowerCase())) return false;
           return true;
         })
@@ -167,22 +128,6 @@ export function LootInventoryDisplay({
   // Check if we have anything to show
   const hasItems = totalItems > 0 || essenceCount > 0;
 
-  if (!hasItems) {
-    return (
-      <GameCard variant="default" className="w-full">
-        <div className="flex items-center gap-2 mb-2">
-          <Gem className="w-4 h-4 text-[var(--mana-light)]" />
-          <h3 className="text-[var(--mana-light)] game-panel-title text-xs uppercase tracking-wider">
-            Inventory
-          </h3>
-        </div>
-        <div className="text-[var(--text-muted)] text-sm text-center py-4">
-          No items collected yet. Defeat floors and guardians to find loot!
-        </div>
-      </GameCard>
-    );
-  }
-
   const handleDeleteMaterial = (materialId: string) => {
     const drop = LOOT_DROPS[materialId];
     if (drop) {
@@ -212,6 +157,22 @@ export function LootInventoryDisplay({
     setDeleteConfirm(null);
   };
 
+  if (!hasItems) {
+    return (
+      <GameCard variant="default" className="w-full">
+        <div className="flex items-center gap-2 mb-2">
+          <Gem className="w-4 h-4 text-[var(--mana-light)]" />
+          <h3 className="text-[var(--mana-light)] game-panel-title text-xs uppercase tracking-wider">
+            Inventory
+          </h3>
+        </div>
+        <div className="text-[var(--text-muted)] text-sm text-center py-4">
+          No items collected yet. Defeat floors and guardians to find loot!
+        </div>
+      </GameCard>
+    );
+  }
+
   return (
     <>
       <GameCard variant="default" className="w-full">
@@ -279,179 +240,29 @@ export function LootInventoryDisplay({
         <ScrollArea className="h-64 w-full">
           <div className="space-y-3 pr-2">
             {/* Materials */}
-            {(filterMode === 'all' || filterMode === 'materials') && filteredMaterials.length > 0 && (
-              <div>
-                <div className="text-xs text-[var(--text-muted)] mb-2 flex items-center gap-1">
-                  <Sparkles className="w-3 h-3" />
-                  Materials
-                </div>
-                <div className="grid grid-cols-2 gap-2">
-                  {filteredMaterials.map(([id, count]) => {
-                    const drop = LOOT_DROPS[id];
-                    if (!drop) return null;
-                    const rarityColor = RARITY_CSS_VAR[drop.rarity] || 'var(--rarity-common)';
-                    const rarityGlow = RARITY_GLOW_CSS_VAR[drop.rarity] || 'var(--rarity-common-glow)';
-                    return (
-                      <div
-                        key={id}
-                        className="p-2 rounded border bg-[var(--bg-sunken)] group relative"
-                        style={{
-                          borderColor: rarityColor,
-                          backgroundColor: rarityGlow,
-                        }}
-                      >
-                        <div className="flex items-start justify-between">
-                          <div>
-                            <div className="text-xs font-semibold" style={{ color: rarityColor }}>
-                              {drop.name}
-                            </div>
-                            <div className="text-xs text-[var(--text-secondary)]">
-                              x{count}
-                            </div>
-                            <div className="text-xs text-[var(--text-muted)] capitalize">
-                              {drop.rarity}
-                            </div>
-                          </div>
-                          {onDeleteMaterial && (
-                            <ActionButton
-                              variant="ghost"
-                              size="sm"
-                              className="h-5 w-5 p-0 opacity-0 group-hover:opacity-100 text-[var(--color-danger)] hover:text-[var(--interactive-danger-hover)] hover:bg-[var(--interactive-danger)]/20"
-                              onClick={() => handleDeleteMaterial(id)}
-                              aria-label={`Delete ${drop.name}`}
-                            >
-                              <Trash2 className="w-3 h-3" />
-                            </ActionButton>
-                          )}
-                        </div>
-                      </div>
-                    );
-                  })}
-                </div>
-              </div>
+            {(filterMode === 'all' || filterMode === 'materials') && (
+              <MaterialsSection 
+                materials={filteredMaterials} 
+                onDeleteMaterial={handleDeleteMaterial}
+              />
             )}
 
             {/* Essence */}
-            {(filterMode === 'all' || filterMode === 'essence') && filteredEssence.length > 0 && (
-              <div>
-                <div className="text-xs text-[var(--text-muted)] mb-2 flex items-center gap-1">
-                  <Droplet className="w-3 h-3" />
-                  Elemental Essence
-                </div>
-                <div className="grid grid-cols-2 gap-2">
-                  {filteredEssence.map(([id, state]) => {
-                    const elem = ELEMENTS[id];
-                    if (!elem) return null;
-                    return (
-                      <div
-                        key={id}
-                        className="p-2 rounded border bg-[var(--bg-sunken)]"
-                        style={{
-                          borderColor: `var(--mana-${id})`,
-                          backgroundColor: `var(--mana-${id})20`,
-                        }}
-                      >
-                        <div className="flex items-center gap-1">
-                          <ElementBadge element={id} showIcon={true} size="sm" />
-                        </div>
-                        <div className="text-xs text-[var(--text-secondary)] mt-1">
-                          {state.current} / {state.max}
-                        </div>
-                      </div>
-                    );
-                  })}
-                </div>
-              </div>
+            {(filterMode === 'all' || filterMode === 'essence') && (
+              <EssenceSection essence={filteredEssence} />
             )}
 
             {/* Blueprints */}
-            {(filterMode === 'all' || filterMode === 'blueprints') && inventory.blueprints.length > 0 && (
-              <div>
-                <div className="text-xs text-[var(--text-muted)] mb-2 flex items-center gap-1">
-                  <Scroll className="w-3 h-3" />
-                  Blueprints (permanent)
-                </div>
-                <div className="flex flex-wrap gap-1">
-                  {inventory.blueprints.map((id) => {
-                    const drop = LOOT_DROPS[id];
-                    if (!drop) return null;
-                    const rarityColor = RARITY_CSS_VAR[drop.rarity] || 'var(--rarity-common)';
-                    return (
-                      <Badge
-                        key={id}
-                        className="text-xs"
-                        style={{
-                          backgroundColor: `${RARITY_GLOW_CSS_VAR[drop.rarity] || 'var(--rarity-common-glow)'}`,
-                          color: rarityColor,
-                          borderColor: rarityColor,
-                        }}
-                      >
-                        {drop.name}
-                      </Badge>
-                    );
-                  })}
-                </div>
-                <div className="text-xs text-[var(--text-muted)] mt-1 italic">
-                  Blueprints are permanent unlocks - use them to craft equipment
-                </div>
-              </div>
+            {(filterMode === 'all' || filterMode === 'blueprints') && (
+              <BlueprintsSection blueprints={inventory.blueprints} />
             )}
 
             {/* Equipment */}
-            {(filterMode === 'all' || filterMode === 'equipment') && filteredEquipment.length > 0 && (
-              <div>
-                <div className="text-xs text-[var(--text-muted)] mb-2 flex items-center gap-1">
-                  <Package className="w-3 h-3" />
-                  Equipment
-                </div>
-                <div className="space-y-2">
-                  {filteredEquipment.map(([id, instance]) => {
-                    const type = EQUIPMENT_TYPES[instance.typeId];
-                    const Icon = type ? CATEGORY_ICONS[type.category] || Package : Package;
-                    const rarityColor = RARITY_CSS_VAR[instance.rarity] || 'var(--rarity-common)';
-                    const rarityGlow = RARITY_GLOW_CSS_VAR[instance.rarity] || 'var(--rarity-common-glow)';
-                    
-                    return (
-                      <div
-                        key={id}
-                        className="p-2 rounded border bg-[var(--bg-sunken)] group"
-                        style={{
-                          borderColor: rarityColor,
-                          backgroundColor: rarityGlow,
-                        }}
-                      >
-                        <div className="flex items-start justify-between">
-                          <div className="flex items-start gap-2">
-                            <Icon className="w-4 h-4 mt-0.5" style={{ color: rarityColor }} />
-                            <div>
-                              <div className="text-xs font-semibold" style={{ color: rarityColor }}>
-                                {instance.name}
-                              </div>
-                              <div className="text-xs text-[var(--text-secondary)]">
-                                {type?.name} • {instance.usedCapacity}/{instance.totalCapacity} cap
-                              </div>
-                              <div className="text-xs text-[var(--text-muted)] capitalize">
-                                {instance.rarity} • {instance.enchantments.length} enchants
-                              </div>
-                            </div>
-                          </div>
-                          {onDeleteEquipment && (
-                            <ActionButton
-                              variant="ghost"
-                              size="sm"
-                              className="h-5 w-5 p-0 opacity-0 group-hover:opacity-100 text-[var(--color-danger)] hover:text-[var(--interactive-danger-hover)] hover:bg-[var(--interactive-danger)]/20"
-                              onClick={() => handleDeleteEquipment(id)}
-                              aria-label={`Delete ${instance.name}`}
-                            >
-                              <Trash2 className="w-3 h-3" />
-                            </ActionButton>
-                          )}
-                        </div>
-                      </div>
-                    );
-                  })}
-                </div>
-              </div>
+            {(filterMode === 'all' || filterMode === 'equipment') && (
+              <EquipmentSection 
+                equipment={filteredEquipment} 
+                onDeleteEquipment={handleDeleteEquipment}
+              />
             )}
           </div>
         </ScrollArea>

src/components/game/LootInventory/MaterialItem.tsx

@@ -0,0 +1,86 @@
+'use client';
+
+import type { LootInventory } from '@/lib/game/types';
+// For backward compatibility
+type LootInventoryType = LootInventory;
+import { LOOT_DROPS } from '@/lib/game/data/loot-drops';
+import { RARITY_CSS_VAR, RARITY_GLOW_CSS_VAR } from './types';
+import { Sparkles, Trash2 } from 'lucide-react';
+import { ActionButton } from '@/components/ui/action-button';
+
+interface MaterialItemProps {
+  materialId: string;
+  count: number;
+  onDelete?: (materialId: string) => void;
+}
+
+export function MaterialItem({ materialId, count, onDelete }: MaterialItemProps) {
+  const drop = LOOT_DROPS[materialId];
+  if (!drop) return null;
+  
+  const rarityColor = RARITY_CSS_VAR[drop.rarity] || 'var(--rarity-common)';
+  const rarityGlow = RARITY_GLOW_CSS_VAR[drop.rarity] || 'var(--rarity-common-glow)';
+  
+  return (
+    <div
+      className="p-2 rounded border bg-[var(--bg-sunken)] group relative"
+      style={{
+        borderColor: rarityColor,
+        backgroundColor: rarityGlow,
+      }}
+    >
+      <div className="flex items-start justify-between">
+        <div>
+          <div className="text-xs font-semibold" style={{ color: rarityColor }}>
+            {drop.name}
+          </div>
+          <div className="text-xs text-[var(--text-secondary)]">
+            x{count}
+          </div>
+          <div className="text-xs text-[var(--text-muted)] capitalize">
+            {drop.rarity}
+          </div>
+        </div>
+        {onDelete && (
+          <ActionButton
+            variant="ghost"
+            size="sm"
+            className="h-5 w-5 p-0 opacity-0 group-hover:opacity-100 text-[var(--color-danger)] hover:text-[var(--interactive-danger-hover)] hover:bg-[var(--interactive-danger)]/20"
+            onClick={() => onDelete(materialId)}
+            aria-label={`Delete ${drop.name}`}
+          >
+            <Trash2 className="w-3 h-3" />
+          </ActionButton>
+        )}
+      </div>
+    </div>
+  );
+}
+
+interface MaterialsSectionProps {
+  materials: [string, number][];
+  onDeleteMaterial?: (materialId: string) => void;
+}
+
+export function MaterialsSection({ materials, onDeleteMaterial }: MaterialsSectionProps) {
+  if (materials.length === 0) return null;
+  
+  return (
+    <div>
+      <div className="text-xs text-[var(--text-muted)] mb-2 flex items-center gap-1">
+        <Sparkles className="w-3 h-3" />
+        Materials
+      </div>
+      <div className="grid grid-cols-2 gap-2">
+        {materials.map(([id, count]) => (
+          <MaterialItem
+            key={id}
+            materialId={id}
+            count={count}
+            onDelete={onDeleteMaterial}
+          />
+        ))}
+      </div>
+    </div>
+  );
+}

src/components/game/LootInventory/icons.ts

@@ -0,0 +1,15 @@
+import { Gem, Sparkles, Scroll, Droplet, Trash2, Search, 
+  Package, Sword, Shield, Shirt, Crown, ArrowUpDown,
+  Wrench, AlertTriangle } from 'lucide-react';
+import type { EquipmentCategory } from '@/lib/game/data/equipment';
+
+export const CATEGORY_ICONS: Record<string, typeof Sword> = {
+  caster: Sword,
+  shield: Shield,
+  catalyst: Sparkles,
+  head: Crown,
+  body: Shirt,
+  hands: Wrench,
+  feet: Package,
+  accessory: Gem,
+};

src/components/game/LootInventory/index.tsx

@@ -0,0 +1,318 @@
+'use client';
+
+import { useState } from 'react';
+import { GameCard } from '@/components/ui/game-card';
+import { Badge } from '@/components/ui/badge';
+import { ActionButton } from '@/components/ui/action-button';
+import { ScrollArea } from '@/components/ui/scroll-area';
+import { Separator } from '@/components/ui/separator';
+import { Input } from '@/components/ui/input';
+import { 
+  Gem, Search, ArrowUpDown, AlertTriangle
+} from 'lucide-react';
+import { ElementBadge } from '@/components/ui/element-badge';
+import type { LootInventory as LootInventoryType, EquipmentInstance, ElementState } from '@/lib/game/types';
+import { LOOT_DROPS, RARITY_COLORS } from '@/lib/game/data/loot-drops';
+import { EQUIPMENT_TYPES } from '@/lib/game/data/equipment';
+import { ELEMENTS } from '@/lib/game/constants';
+import { useGameToast } from '@/components/game/GameToast';
+import {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogTitle,
+} from '@/components/ui/alert-dialog';
+
+import { type SortMode, type FilterMode, RARITY_ORDER, RARITY_CSS_VAR, RARITY_GLOW_CSS_VAR } from './types';
+import { MaterialsSection } from './MaterialItem';
+import { EssenceSection } from './EssenceItem';
+import { BlueprintsSection } from './BlueprintsSection';
+import { EquipmentSection } from './EquipmentItem';
+
+interface LootInventoryProps {
+  inventory: LootInventoryType;
+  elements?: Record<string, ElementState>;
+  equipmentInstances?: Record<string, EquipmentInstance>;
+  onDeleteMaterial?: (materialId: string, amount: number) => void;
+  onDeleteEquipment?: (instanceId: string) => void;
+}
+
+export function LootInventoryDisplay({ 
+  inventory,
+  elements,
+  equipmentInstances = {},
+  onDeleteMaterial,
+  onDeleteEquipment,
+}: LootInventoryProps) {
+  const showToast = useGameToast();
+  const [searchTerm, setSearchTerm] = useState('');
+  const [sortMode, setSortMode] = useState<SortMode>('rarity');
+  const [filterMode, setFilterMode] = useState<FilterMode>('all');
+  const [deleteConfirm, setDeleteConfirm] = useState<{ type: 'material' | 'equipment'; id: string; name: string } | null>(null);
+
+  // Count items
+  const materialCount = Object.values(inventory.materials).reduce((a: number, b: number) => a + b, 0);
+  
+  // Calculate essence count
+  let essenceCount = 0;
+  if (elements) {
+    essenceCount = Object.entries(elements).reduce((acc: number, [id, state]) => {
+      if (id === 'transference') return acc;
+      return acc + (state.current || 0);
+    }, 0);
+  }
+  
+  const blueprintCount = inventory.blueprints.length;
+  const equipmentCount = Object.keys(equipmentInstances).length;
+  const totalItems = materialCount + blueprintCount + equipmentCount;
+
+  // Filter and sort materials
+  const filteredMaterials = Object.entries(inventory.materials)
+    .filter(([id, count]) => {
+      if (count <= 0) return false;
+      const drop = LOOT_DROPS[id];
+      if (!drop) return false;
+      if (searchTerm && !drop.name.toLowerCase().includes(searchTerm.toLowerCase())) return false;
+      return true;
+    })
+    .sort(([aId, aCount], [bId, bCount]) => {
+      const aDrop = LOOT_DROPS[aId];
+      const bDrop = LOOT_DROPS[bId];
+      if (!aDrop || !bDrop) return 0;
+      
+      switch (sortMode) {
+        case 'name':
+          return aDrop.name.localeCompare(bDrop.name);
+        case 'rarity':
+          return RARITY_ORDER[bDrop.rarity] - RARITY_ORDER[aDrop.rarity];
+        case 'count':
+          return bCount - aCount;
+        default:
+          return 0;
+      }
+    });
+
+  // Filter and sort essence
+  const filteredEssence = elements 
+    ? Object.entries(elements)
+        .filter(([id, state]) => {
+          if (!state.unlocked || state.current <= 0) return false;
+          if (id === 'transference') return false;
+          if (searchTerm && !ELEMENTS[id]?.name.toLowerCase().includes(searchTerm.toLowerCase())) return false;
+          return true;
+        })
+        .sort(([aId, aState], [bId, bState]) => {
+          switch (sortMode) {
+            case 'name':
+              return (ELEMENTS[aId]?.name || aId).localeCompare(ELEMENTS[bId]?.name || bId);
+            case 'count':
+              return bState.current - aState.current;
+            default:
+              return 0;
+          }
+        })
+    : [];
+
+  // Filter and sort equipment
+  const filteredEquipment = Object.entries(equipmentInstances)
+    .filter(([id, instance]) => {
+      if (searchTerm && !instance.name.toLowerCase().includes(searchTerm.toLowerCase())) return false;
+      return true;
+    })
+    .sort(([aId, aInst], [bId, bInst]) => {
+      switch (sortMode) {
+        case 'name':
+          return aInst.name.localeCompare(bInst.name);
+        case 'rarity':
+          return RARITY_ORDER[bInst.rarity] - RARITY_ORDER[aInst.rarity];
+        default:
+          return 0;
+      }
+    });
+
+  const hasItems = totalItems > 0 || essenceCount > 0;
+
+  const handleDeleteMaterial = (materialId: string) => {
+    const drop = LOOT_DROPS[materialId];
+    if (drop) {
+      setDeleteConfirm({ type: 'material', id: materialId, name: drop.name });
+    }
+  };
+
+  const handleDeleteEquipment = (instanceId: string) => {
+    const instance = equipmentInstances[instanceId];
+    if (instance) {
+      setDeleteConfirm({ type: 'equipment', id: instanceId, name: instance.name });
+    }
+  };
+
+  const confirmDelete = () => {
+    if (!deleteConfirm) return;
+    
+    if (deleteConfirm.type === 'material' && onDeleteMaterial) {
+      const amount = inventory.materials[deleteConfirm.id] || 0;
+      onDeleteMaterial(deleteConfirm.id, amount);
+      showToast('success', 'Material Deleted', `${deleteConfirm.name} removed from inventory`);
+    } else if (deleteConfirm.type === 'equipment' && onDeleteEquipment) {
+      onDeleteEquipment(deleteConfirm.id);
+      showToast('success', 'Item Discarded', `${deleteConfirm.name} has been removed from inventory`);
+    }
+    
+    setDeleteConfirm(null);
+  };
+
+  if (!hasItems) {
+    return (
+      <GameCard variant="default" className="w-full">
+        <div className="flex items-center gap-2 mb-2">
+          <Gem className="w-4 h-4 text-[var(--mana-light)]" />
+          <h3 className="text-[var(--mana-light)] game-panel-title text-xs uppercase tracking-wider">
+            Inventory
+          </h3>
+        </div>
+        <div className="text-[var(--text-muted)] text-sm text-center py-4">
+          No items collected yet. Defeat floors and guardians to find loot!
+        </div>
+      </GameCard>
+    );
+  }
+
+  return (
+    <>
+      <GameCard variant="default" className="w-full">
+        <div className="flex items-center gap-2 mb-3">
+          <Gem className="w-4 h-4 text-[var(--mana-light)]" />
+          <h3 className="text-[var(--mana-light)] game-panel-title text-xs uppercase tracking-wider">
+            Inventory
+          </h3>
+          <Badge 
+            className="ml-auto bg-[var(--bg-sunken)] text-[var(--text-secondary)] text-xs border-[var(--border-subtle)]"
+            aria-label={`${totalItems} items in inventory`}
+          >
+            {totalItems} items
+          </Badge>
+        </div>
+
+        {/* Search and Filter Controls */}
+        <div className="flex gap-2 mb-3">
+          <div className="relative flex-1">
+            <Search className="absolute left-2 top-1/2 -translate-y-1/2 w-3 h-3 text-[var(--text-muted)]" />
+            <Input
+              placeholder="Search..."
+              value={searchTerm}
+              onChange={(e) => setSearchTerm(e.target.value)}
+              className="h-7 pl-7 bg-[var(--bg-sunken)] border-[var(--border-subtle)] text-xs text-[var(--text-primary)] placeholder:text-[var(--text-disabled)]"
+              aria-label="Search inventory"
+            />
+          </div>
+          <ActionButton
+            variant="secondary"
+            size="sm"
+            className="h-7 px-2"
+            onClick={() => setSortMode(sortMode === 'rarity' ? 'name' : sortMode === 'name' ? 'count' : 'rarity')}
+            aria-label={`Sort by ${sortMode === 'rarity' ? 'name' : sortMode === 'name' ? 'count' : 'rarity'}`}
+          >
+            <ArrowUpDown className="w-3 h-3" />
+          </ActionButton>
+        </div>
+
+        {/* Filter Tabs */}
+        <div className="flex gap-1 flex-wrap mb-3">
+          {[
+            { mode: 'all' as FilterMode, label: 'All' },
+            { mode: 'materials' as FilterMode, label: `Materials (${materialCount})` },
+            { mode: 'essence' as FilterMode, label: `Essence (${essenceCount})` },
+            { mode: 'blueprints' as FilterMode, label: `Blueprints (${blueprintCount})` },
+            { mode: 'equipment' as FilterMode, label: `Equipment (${equipmentCount})` },
+          ].map(({ mode, label }) => (
+            <ActionButton
+              key={mode}
+              variant={filterMode === mode ? 'primary' : 'secondary'}
+              size="sm"
+              className={`h-6 px-2 text-xs ${filterMode === mode ? '' : 'bg-[var(--bg-sunken)]'}`}
+              onClick={() => setFilterMode(mode)}
+              aria-pressed={filterMode === mode}
+              aria-label={`Filter by ${label}`}
+            >
+              {label}
+            </ActionButton>
+          ))}
+        </div>
+
+        <Separator className="bg-[var(--border-subtle)] mb-3" />
+
+        <ScrollArea className="h-64 w-full">
+          <div className="space-y-3 pr-2">
+            {/* Materials */}
+            {(filterMode === 'all' || filterMode === 'materials') && (
+              <MaterialsSection 
+                materials={filteredMaterials} 
+                onDeleteMaterial={handleDeleteMaterial}
+              />
+            )}
+
+            {/* Essence */}
+            {(filterMode === 'all' || filterMode === 'essence') && (
+              <EssenceSection essence={filteredEssence} />
+            )}
+
+            {/* Blueprints */}
+            {(filterMode === 'all' || filterMode === 'blueprints') && (
+              <BlueprintsSection blueprints={inventory.blueprints} />
+            )}
+
+            {/* Equipment */}
+            {(filterMode === 'all' || filterMode === 'equipment') && (
+              <EquipmentSection 
+                equipment={filteredEquipment} 
+                onDeleteEquipment={handleDeleteEquipment}
+              />
+            )}
+          </div>
+        </ScrollArea>
+      </GameCard>
+
+      {/* Delete Confirmation Dialog */}
+      <AlertDialog open={!!deleteConfirm} onOpenChange={() => setDeleteConfirm(null)}>
+        <AlertDialogContent className="bg-[var(--bg-surface)] border-[var(--border-default)]">
+          <AlertDialogHeader>
+            <AlertDialogTitle className="text-[var(--mana-light)] flex items-center gap-2">
+              <AlertTriangle className="w-5 h-5" />
+              Delete Item
+            </AlertDialogTitle>
+            <AlertDialogDescription className="text-[var(--text-secondary)]">
+              Are you sure you want to delete <strong className="text-[var(--text-primary)]">{deleteConfirm?.name}</strong>?
+              {deleteConfirm?.type === 'material' && (
+                <span className="block mt-2 text-[var(--color-danger)]">
+                  This will delete ALL {inventory.materials[deleteConfirm?.id || ''] || 0} of this material!
+                </span>
+              )}
+              {deleteConfirm?.type === 'equipment' && (
+                <span className="block mt-2 text-[var(--color-danger)]">
+                  This equipment and all its enchantments will be permanently lost!
+                </span>
+              )}
+            </AlertDialogDescription>
+          </AlertDialogHeader>
+          <AlertDialogFooter>
+            <AlertDialogCancel className="bg-[var(--bg-sunken)] border-[var(--border-default)] text-[var(--text-primary)] hover:bg-[var(--bg-elevated)]">
+              Cancel
+            </AlertDialogCancel>
+            <AlertDialogAction 
+              className="bg-[var(--interactive-danger)] hover:bg-[var(--interactive-danger-hover)] text-white"
+              onClick={confirmDelete}
+            >
+              Delete
+            </AlertDialogAction>
+          </AlertDialogFooter>
+        </AlertDialogContent>
+      </AlertDialog>
+    </>
+  );
+}
+
+LootInventoryDisplay.displayName = "LootInventoryDisplay";

src/components/game/LootInventory/types.ts

@@ -0,0 +1,39 @@
+'use client';
+
+import { useState } from 'react';
+import type { LootInventory as LootInventoryType, EquipmentInstance, ElementState } from '@/lib/game/types';
+import { LOOT_DROPS, RARITY_COLORS } from '@/lib/game/data/loot-drops';
+import { EQUIPMENT_TYPES } from '@/lib/game/data/equipment';
+import { ELEMENTS } from '@/lib/game/constants';
+
+export type SortMode = 'name' | 'rarity' | 'count';
+export type FilterMode = 'all' | 'materials' | 'essence' | 'blueprints' | 'equipment';
+
+export const RARITY_ORDER = {
+  common: 0,
+  uncommon: 1,
+  rare: 2,
+  epic: 3,
+  legendary: 4,
+  mythic: 5,
+};
+
+// Map rarity to CSS variable for colors
+export const RARITY_CSS_VAR: Record<string, string> = {
+  common: 'var(--rarity-common)',
+  uncommon: 'var(--rarity-uncommon)',
+  rare: 'var(--rarity-rare)',
+  epic: 'var(--rarity-epic)',
+  legendary: 'var(--rarity-legendary)',
+  mythic: 'var(--rarity-mythic)',
+};
+
+// Map rarity to CSS variable for glow/background
+export const RARITY_GLOW_CSS_VAR: Record<string, string> = {
+  common: 'var(--rarity-common-glow)',
+  uncommon: 'var(--rarity-uncommon-glow)',
+  rare: 'var(--rarity-rare-glow)',
+  epic: 'var(--rarity-epic-glow)',
+  legendary: 'var(--rarity-legendary-glow)',
+  mythic: 'var(--rarity-mythic-glow)',
+};

src/components/game/SkillsTab.tsx

@@ -1,432 +1,52 @@
 'use client';
 
 import { useState } from 'react';
-import { useGameStore, fmt, fmtDec } from '@/lib/game/store';
-import { SKILLS_DEF, SKILL_CATEGORIES } from '@/lib/game/constants';
-import { SKILL_EVOLUTION_PATHS, getUpgradesForSkillAtMilestone, getNextTierSkill, getTierMultiplier } from '@/lib/game/skill-evolution';
-import { computeEffects } from '@/lib/game/upgrade-effects';
-import { useStudyStats } from '@/lib/game/hooks/useGameDerived';
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { Badge } from '@/components/ui/badge';
-import { Button } from '@/components/ui/button';
-import { Progress } from '@/components/ui/progress';
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription } from '@/components/ui/dialog';
-import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/components/ui/tooltip';
-import { BookOpen, X } from 'lucide-react';
-import type { SkillUpgradeChoice } from '@/lib/game/types';
-
-// Format study time
-function formatStudyTime(hours: number): string {
-  if (hours < 1) return `${Math.round(hours * 60)}m`;
-  return `${hours.toFixed(1)}h`;
-}
+import { useGameStore } from '@/lib/game/store';
+import { SKILL_CATEGORIES } from '@/lib/game/constants';
+import { Card, CardContent } from '@/components/ui/card';
+import { SkillUpgradeDialog } from './SkillsTab/SkillUpgradeDialog';
+import { SkillStudyProgress } from './SkillsTab/SkillStudyProgress';
+import { SkillCategory } from './SkillsTab/SkillCategory';
 
 export function SkillsTab() {
   const store = useGameStore();
-  const { studySpeedMult, studyCostMult, hasParallelStudy } = useStudyStats();
-  
   const [upgradeDialogSkill, setUpgradeDialogSkill] = useState<string | null>(null);
   const [upgradeDialogMilestone, setUpgradeDialogMilestone] = useState<5 | 10>(5);
-  const [pendingUpgradeSelections, setPendingUpgradeSelections] = useState<string[]>([]);
   
-  const upgradeEffects = computeEffects(store.skillUpgrades || {}, store.skillTiers || {});
-  
-  // Check if skill has milestone available
-  const hasMilestoneUpgrade = (skillId: string, level: number): { milestone: 5 | 10; hasUpgrades: boolean; selectedCount: number } | null => {
-    const baseSkillId = skillId.includes('_t') ? skillId.split('_t')[0] : skillId;
-    const path = SKILL_EVOLUTION_PATHS[baseSkillId];
-    if (!path) return null;
-    
-    if (level >= 5) {
-      const upgrades5 = getUpgradesForSkillAtMilestone(skillId, 5, store.skillTiers);
-      const selected5 = (store.skillUpgrades[skillId] || []).filter(id => id.includes('_l5'));
-      if (upgrades5.length > 0 && selected5.length < 2) {
-        return { milestone: 5, hasUpgrades: true, selectedCount: selected5.length };
-      }
-    }
-    
-    if (level >= 10) {
-      const upgrades10 = getUpgradesForSkillAtMilestone(skillId, 10, store.skillTiers);
-      const selected10 = (store.skillUpgrades[skillId] || []).filter(id => id.includes('_l10'));
-      if (upgrades10.length > 0 && selected10.length < 2) {
-        return { milestone: 10, hasUpgrades: true, selectedCount: selected10.length };
-      }
-    }
-    
-    return null;
+  const handleUpgradeClick = (skillId: string, milestone: 5 | 10) => {
+    setUpgradeDialogSkill(skillId);
+    setUpgradeDialogMilestone(milestone);
   };
   
-  // Render upgrade selection dialog
-  const renderUpgradeDialog = () => {
-    if (!upgradeDialogSkill) return null;
-    
-    const skillDef = SKILLS_DEF[upgradeDialogSkill];
-    const level = store.skills[upgradeDialogSkill] || 0;
-    const { available, selected: alreadySelected } = store.getSkillUpgradeChoices(upgradeDialogSkill, upgradeDialogMilestone);
-    
-    const currentSelections = pendingUpgradeSelections.length > 0 ? pendingUpgradeSelections : alreadySelected;
-    
-    const toggleUpgrade = (upgradeId: string) => {
-      if (currentSelections.includes(upgradeId)) {
-        setPendingUpgradeSelections(currentSelections.filter(id => id !== upgradeId));
-      } else if (currentSelections.length < 2) {
-        setPendingUpgradeSelections([...currentSelections, upgradeId]);
-      }
-    };
-    
-    const handleDone = () => {
-      if (currentSelections.length === 2 && upgradeDialogSkill) {
-        store.commitSkillUpgrades(upgradeDialogSkill, currentSelections, upgradeDialogMilestone);
-      }
-      setPendingUpgradeSelections([]);
-      setUpgradeDialogSkill(null);
-    };
-    
-    const handleCancel = () => {
-      setPendingUpgradeSelections([]);
-      setUpgradeDialogSkill(null);
-    };
-    
-    return (
-      <Dialog open={!!upgradeDialogSkill} onOpenChange={(open) => {
-        if (!open) {
-          setPendingUpgradeSelections([]);
-          setUpgradeDialogSkill(null);
-        }
-      }}>
-        <DialogContent className="bg-gray-900 border-gray-700 max-w-lg">
-          <DialogHeader>
-            <DialogTitle className="text-amber-400">
-              Choose Upgrade - {skillDef?.name || upgradeDialogSkill}
-            </DialogTitle>
-            <DialogDescription className="text-gray-400">
-              Level {upgradeDialogMilestone} Milestone - Select 2 upgrades ({currentSelections.length}/2 chosen)
-            </DialogDescription>
-          </DialogHeader>
-          
-          <div className="space-y-2 mt-4">
-            {available.map((upgrade) => {
-              const isSelected = currentSelections.includes(upgrade.id);
-              const canToggle = currentSelections.length < 2 || isSelected;
-              
-              return (
-                <div
-                  key={upgrade.id}
-                  className={`p-3 rounded border cursor-pointer transition-all ${
-                    isSelected 
-                      ? 'border-amber-500 bg-amber-900/30' 
-                      : canToggle 
-                        ? 'border-gray-600 bg-gray-800/50 hover:border-amber-500/50 hover:bg-gray-800' 
-                        : 'border-gray-700 bg-gray-800/30 opacity-50 cursor-not-allowed'
-                  }`}
-                  onClick={() => {
-                    if (canToggle) {
-                      toggleUpgrade(upgrade.id);
-                    }
-                  }}
-                >
-                  <div className="flex items-center justify-between">
-                    <div className="font-semibold text-sm text-amber-300">{upgrade.name}</div>
-                    {isSelected && <Badge className="bg-amber-600 text-amber-100">Selected</Badge>}
-                  </div>
-                  <div className="text-xs text-gray-400 mt-1">{upgrade.desc}</div>
-                  {upgrade.effect.type === 'multiplier' && (
-                    <div className="text-xs text-green-400 mt-1">
-                      +{Math.round((upgrade.effect.value! - 1) * 100)}% {upgrade.effect.stat}
-                    </div>
-                  )}
-                  {upgrade.effect.type === 'bonus' && (
-                    <div className="text-xs text-blue-400 mt-1">
-                      +{upgrade.effect.value} {upgrade.effect.stat}
-                    </div>
-                  )}
-                  {upgrade.effect.type === 'special' && (
-                    <div className="text-xs text-cyan-400 mt-1">
-                      ⚡ {upgrade.effect.specialDesc || 'Special effect'}
-                    </div>
-                  )}
-                </div>
-              );
-            })}
-          </div>
-          
-          <div className="flex justify-end gap-2 mt-4">
-            <Button 
-              variant="outline" 
-              onClick={handleCancel}
-            >
-              Cancel
-            </Button>
-            <Button 
-              variant="default"
-              onClick={handleDone}
-              disabled={currentSelections.length !== 2}
-            >
-              {currentSelections.length < 2 ? `Select ${2 - currentSelections.length} more` : 'Confirm'}
-            </Button>
-          </div>
-        </DialogContent>
-      </Dialog>
-    );
-  };
-  
-  // Render study progress
-  const renderStudyProgress = () => {
-    if (!store.currentStudyTarget) return null;
-    
-    const target = store.currentStudyTarget;
-    const progressPct = Math.min(100, (target.progress / target.required) * 100);
-    const def = SKILLS_DEF[target.id] || SKILLS_DEF[target.id.split('_t')[0]];
-    
-    return (
-      <div className="p-3 rounded border border-purple-600/50 bg-purple-900/20">
-        <div className="flex items-center justify-between mb-2">
-          <div className="flex items-center gap-2">
-            <BookOpen className="w-4 h-4 text-purple-400" />
-            <span className="text-sm font-semibold text-purple-300">
-              {def?.name}
-            </span>
-          </div>
-          <Button
-            variant="ghost"
-            size="sm"
-            className="h-6 w-6 p-0 text-gray-400 hover:text-white"
-            onClick={() => store.cancelStudy()}
-          >
-            <X className="w-4 h-4" />
-          </Button>
-        </div>
-        <Progress value={progressPct} className="h-2 bg-gray-800" />
-        <div className="flex justify-between text-xs text-gray-400 mt-1">
-          <span>{formatStudyTime(target.progress)} / {formatStudyTime(target.required)}</span>
-          <span>{studySpeedMult.toFixed(1)}x speed</span>
-        </div>
-      </div>
-    );
+  const handleUpgradeClose = () => {
+    setUpgradeDialogSkill(null);
   };
   
   return (
     <div className="space-y-4">
       {/* Upgrade Selection Dialog */}
-      {renderUpgradeDialog()}
+      <SkillUpgradeDialog 
+        skillId={upgradeDialogSkill}
+        milestone={upgradeDialogMilestone}
+        onClose={handleUpgradeClose}
+      />
       
       {/* Current Study Progress */}
       {store.currentStudyTarget && store.currentStudyTarget.type === 'skill' && (
         <Card className="bg-gray-900/80 border-purple-600/50">
           <CardContent className="pt-4">
-            {renderStudyProgress()}
+            <SkillStudyProgress />
           </CardContent>
         </Card>
       )}
       
-      {SKILL_CATEGORIES.map((cat) => {
-        const skillsInCat = Object.entries(SKILLS_DEF).filter(([, def]) => def.cat === cat.id);
-        if (skillsInCat.length === 0) return null;
-        
-        return (
-          <Card key={cat.id} className="bg-gray-900/80 border-gray-700">
-            <CardHeader className="pb-2">
-              <CardTitle className="text-amber-400 game-panel-title text-xs">
-                {cat.icon} {cat.name}
-              </CardTitle>
-            </CardHeader>
-            <CardContent>
-              <div className="space-y-2">
-                {skillsInCat.map(([id, def]) => {
-                  const currentTier = store.skillTiers?.[id] || 1;
-                  const tieredSkillId = currentTier > 1 ? `${id}_t${currentTier}` : id;
-                  const tierMultiplier = getTierMultiplier(tieredSkillId);
-                  
-                  const level = store.skills[tieredSkillId] || store.skills[id] || 0;
-                  const maxed = level >= def.max;
-                  
-                  const isStudying = (store.currentStudyTarget?.id === id || store.currentStudyTarget?.id === tieredSkillId) && store.currentStudyTarget?.type === 'skill';
-                  const savedProgress = store.skillProgress[tieredSkillId] || store.skillProgress[id] || 0;
-                  
-                  const tierDef = SKILL_EVOLUTION_PATHS[id]?.tiers.find(t => t.tier === currentTier);
-                  const skillDisplayName = tierDef?.name || def.name;
-                  
-                  // Check prerequisites
-                  let prereqMet = true;
-                  if (def.req) {
-                    for (const [r, rl] of Object.entries(def.req)) {
-                      if ((store.skills[r] || 0) < rl) {
-                        prereqMet = false;
-                        break;
-                      }
-                    }
-                  }
-                  
-                  // Apply skill modifiers
-                  const studyEffects = computeEffects(store.skillUpgrades || {}, store.skillTiers || {});
-                  const effectiveSpeedMult = studySpeedMult * studyEffects.studySpeedMultiplier;
-                  
-                  const tierStudyTime = def.studyTime * currentTier;
-                  const effectiveStudyTime = tierStudyTime / effectiveSpeedMult;
-                  
-                  const baseCost = def.base * (level + 1) * currentTier;
-                  const cost = Math.floor(baseCost * studyCostMult);
-                  
-                  // Check if any study is in progress (prevent switching topics)
-                  const isAnyStudyInProgress = store.currentAction === 'study' && store.currentStudyTarget;
-                  // Can only study if: not maxed, prereqs met, has mana, and either no study in progress or already studying this skill
-                  const canStudy = !maxed && prereqMet && store.rawMana >= cost && (!isAnyStudyInProgress || isStudying);
-                  
-                  const milestoneInfo = hasMilestoneUpgrade(tieredSkillId, level);
-                  const nextTierSkill = getNextTierSkill(tieredSkillId);
-                  const canTierUp = maxed && nextTierSkill;
-                  
-                  const selectedUpgrades = store.skillUpgrades[tieredSkillId] || [];
-                  const selectedL5 = selectedUpgrades.filter(u => u.includes('_l5'));
-                  const selectedL10 = selectedUpgrades.filter(u => u.includes('_l10'));
-                  
-                  return (
-                    <div
-                      key={id}
-                      className={`flex flex-col sm:flex-row sm:items-center justify-between p-3 rounded border gap-2 ${
-                        isStudying ? 'border-purple-500 bg-purple-900/20' : 
-                        milestoneInfo ? 'border-amber-500/50 bg-amber-900/10' :
-                        'border-gray-700 bg-gray-800/30'
-                      }`}
-                    >
-                      <div className="flex-1 min-w-0">
-                        <div className="flex items-center gap-2 flex-wrap">
-                          <span className="font-semibold text-sm">{skillDisplayName}</span>
-                          {currentTier > 1 && (
-                            <Badge className="bg-purple-600/50 text-purple-200 text-xs">Tier {currentTier} ({fmtDec(tierMultiplier, 0)}x)</Badge>
-                          )}
-                          {level > 0 && <span className="text-purple-400 text-sm">Lv.{level}</span>}
-                          {selectedUpgrades.length > 0 && (
-                            <div className="flex gap-1">
-                              {selectedL5.length > 0 && (
-                                <Badge className="bg-amber-700/50 text-amber-200 text-xs">L5: {selectedL5.length}</Badge>
-                              )}
-                              {selectedL10.length > 0 && (
-                                <Badge className="bg-purple-700/50 text-purple-200 text-xs">L10: {selectedL10.length}</Badge>
-                              )}
-                            </div>
-                          )}
-                        </div>
-                        <div className="text-xs text-gray-400 italic">{def.desc}{currentTier > 1 && ` (Tier ${currentTier}: ${fmtDec(tierMultiplier, 0)}x effect)`}</div>
-                        {!prereqMet && def.req && (
-                          <div className="text-xs text-red-400 mt-1">
-                            Requires: {Object.entries(def.req).map(([r, rl]) => `${SKILLS_DEF[r]?.name} Lv.${rl}`).join(', ')}
-                          </div>
-                        )}
-                        <div className="text-xs text-gray-500 mt-1">
-                          <span className={effectiveSpeedMult > 1 ? 'text-green-400' : ''}>
-                            Study: {formatStudyTime(effectiveStudyTime)}{effectiveSpeedMult > 1 && <span className="text-xs ml-1">({Math.round(effectiveSpeedMult * 100)}% speed)</span>}
-                          </span>
-                          {' • '}
-                          <span className={studyCostMult < 1 ? 'text-green-400' : ''}>
-                            Cost: {fmt(cost)} mana{studyCostMult < 1 && <span className="text-xs ml-1">({Math.round(studyCostMult * 100)}% cost)</span>}
-                          </span>
-                        </div>
-                        
-                        {milestoneInfo && (
-                          <div className="text-xs text-amber-400 mt-1 flex items-center gap-1">
-                            ⭐ Level {milestoneInfo.milestone} milestone: {milestoneInfo.selectedCount}/2 upgrades selected
-                          </div>
-                        )}
-                      </div>
-                      
-                      <div className="flex items-center gap-3 flex-wrap sm:flex-nowrap">
-                        {/* Level dots */}
-                        <div className="flex gap-1 shrink-0">
-                          {Array.from({ length: def.max }).map((_, i) => (
-                            <div
-                              key={i}
-                              className={`w-2 h-2 rounded-full border ${
-                                i < level ? 'bg-purple-500 border-purple-400' : 
-                                i === 4 || i === 9 ? 'border-amber-500' : 
-                                'border-gray-600'
-                              }`}
-                            />
-                          ))}
-                        </div>
-                        
-                        {isStudying ? (
-                          <div className="text-xs text-purple-400">
-                            {formatStudyTime(store.currentStudyTarget?.progress || 0)}/{formatStudyTime(tierStudyTime)}
-                          </div>
-                        ) : milestoneInfo ? (
-                          <Button
-                            size="sm"
-                            className="bg-amber-600 hover:bg-amber-700"
-                            onClick={() => {
-                              setUpgradeDialogSkill(tieredSkillId);
-                              setUpgradeDialogMilestone(milestoneInfo.milestone);
-                            }}
-                          >
-                            Choose Upgrades
-                          </Button>
-                        ) : canTierUp ? (
-                          <Button
-                            size="sm"
-                            className="bg-purple-600 hover:bg-purple-700"
-                            onClick={() => store.tierUpSkill(tieredSkillId)}
-                          >
-                            ⬆️ Tier Up
-                          </Button>
-                        ) : maxed ? (
-                          <Badge className="bg-green-900/50 text-green-300">Maxed</Badge>
-                        ) : (
-                          <div className="flex gap-1">
-                            <TooltipProvider>
-                              <Tooltip>
-                                <TooltipTrigger asChild>
-                                  <Button
-                                    size="sm"
-                                    variant={canStudy ? 'default' : 'outline'}
-                                    disabled={!canStudy}
-                                    className={canStudy ? 'bg-purple-600 hover:bg-purple-700' : 'opacity-50'}
-                                    onClick={() => store.startStudyingSkill(tieredSkillId)}
-                                  >
-                                    Study ({fmt(cost)})
-                                  </Button>
-                                </TooltipTrigger>
-                                {!canStudy && isAnyStudyInProgress && !isStudying && (
-                                  <TooltipContent>
-                                    <p>Cannot switch topics while studying {SKILLS_DEF[store.currentStudyTarget?.id || '']?.name || 'another skill'}</p>
-                                  </TooltipContent>
-                                )}
-                              </Tooltip>
-                            </TooltipProvider>
-                            {/* Parallel Study button */}
-                            {hasParallelStudy && 
-                             store.currentStudyTarget && 
-                             !store.parallelStudyTarget &&
-                             store.currentStudyTarget.id !== tieredSkillId &&
-                             canStudy && (
-                              <TooltipProvider>
-                                <Tooltip>
-                                  <TooltipTrigger asChild>
-                                    <Button
-                                      size="sm"
-                                      variant="outline"
-                                      className="border-cyan-500 text-cyan-400 hover:bg-cyan-900/30"
-                                      onClick={() => store.startParallelStudySkill(tieredSkillId)}
-                                    >
-                                      ⚡
-                                    </Button>
-                                  </TooltipTrigger>
-                                  <TooltipContent>
-                                    <p>Study in parallel (50% speed)</p>
-                                  </TooltipContent>
-                                </Tooltip>
-                              </TooltipProvider>
-                            )}
-                          </div>
-                        )}
-                      </div>
-                    </div>
-                  );
-                })}
-              </div>
-            </CardContent>
-          </Card>
-        );
-      })}
+      {SKILL_CATEGORIES.map((cat) => (
+        <SkillCategory
+          key={cat.id}
+          categoryId={cat.id}
+          onUpgradeClick={handleUpgradeClick}
+        />
+      ))}
     </div>
   );
 }

src/components/game/SkillsTab/SkillCategory.tsx

@@ -0,0 +1,39 @@
+'use client';
+
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { SKILLS_DEF, SKILL_CATEGORIES } from '@/lib/game/constants';
+import { SkillRow } from './SkillRow';
+
+interface SkillCategoryProps {
+  categoryId: string;
+  onUpgradeClick: (skillId: string, milestone: 5 | 10) => void;
+}
+
+export function SkillCategory({ categoryId, onUpgradeClick }: SkillCategoryProps) {
+  const cat = SKILL_CATEGORIES.find(c => c.id === categoryId);
+  if (!cat) return null;
+  
+  const skillsInCat = Object.entries(SKILLS_DEF).filter(([, def]) => def.cat === cat.id);
+  if (skillsInCat.length === 0) return null;
+  
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-amber-400 game-panel-title text-xs">
+          {cat.icon} {cat.name}
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="space-y-2">
+          {skillsInCat.map(([id, def]) => (
+            <SkillRow
+              key={id}
+              skillId={id}
+              onUpgradeClick={onUpgradeClick}
+            />
+          ))}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/components/game/SkillsTab/SkillRow.tsx

@@ -0,0 +1,197 @@
+'use client';
+
+import { useGameStore, fmt, fmtDec } from '@/lib/game/store';
+import { SKILLS_DEF, SKILL_CATEGORIES } from '@/lib/game/constants';
+import { getNextTierSkill, getTierMultiplier } from '@/lib/game/skill-evolution';
+import { computeEffects } from '@/lib/game/upgrade-effects';
+import { useStudyStats } from '@/lib/game/hooks/useGameDerived';
+import { Badge } from '@/components/ui/badge';
+import { Button } from '@/components/ui/button';
+import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/components/ui/tooltip';
+import { formatStudyTime, hasMilestoneUpgrade, getSkillDisplayInfo } from './skills-utils';
+
+interface SkillRowProps {
+  skillId: string;
+  onUpgradeClick: (skillId: string, milestone: 5 | 10) => void;
+}
+
+export function SkillRow({ skillId, onUpgradeClick }: SkillRowProps) {
+  const store = useGameStore();
+  const { studySpeedMult, studyCostMult, hasParallelStudy } = useStudyStats();
+  
+  const skillInfo = getSkillDisplayInfo(store, skillId);
+  const { 
+    currentTier, 
+    tieredSkillId, 
+    tierMultiplier, 
+    level, 
+    maxed, 
+    isStudying, 
+    skillDisplayName, 
+    prereqMet, 
+    def 
+  } = skillInfo;
+  
+  // Apply skill modifiers
+  const studyEffects = computeEffects(store.skillUpgrades || {}, store.skillTiers || {});
+  const effectiveSpeedMult = studySpeedMult * studyEffects.studySpeedMultiplier;
+  
+  const tierStudyTime = def.studyTime * currentTier;
+  const effectiveStudyTime = tierStudyTime / effectiveSpeedMult;
+  
+  const baseCost = def.base * (level + 1) * currentTier;
+  const cost = Math.floor(baseCost * studyCostMult);
+  
+  // Check if any study is in progress (prevent switching topics)
+  const isAnyStudyInProgress = store.currentAction === 'study' && store.currentStudyTarget;
+  // Can only study if: not maxed, prereqs met, has mana, and either no study in progress or already studying this skill
+  const canStudy = !maxed && prereqMet && store.rawMana >= cost && (!isAnyStudyInProgress || isStudying);
+  
+  const milestoneInfo = hasMilestoneUpgrade(store, tieredSkillId, level);
+  const nextTierSkill = getNextTierSkill(tieredSkillId);
+  const canTierUp = maxed && nextTierSkill;
+  
+  const selectedUpgrades = store.skillUpgrades[tieredSkillId] || [];
+  const selectedL5 = selectedUpgrades.filter(u => u.includes('_l5'));
+  const selectedL10 = selectedUpgrades.filter(u => u.includes('_l10'));
+  
+  return (
+    <div
+      className={`flex flex-col sm:flex-row sm:items-center justify-between p-3 rounded border gap-2 ${
+        isStudying ? 'border-purple-500 bg-purple-900/20' : 
+        milestoneInfo ? 'border-amber-500/50 bg-amber-900/10' :
+        'border-gray-700 bg-gray-800/30'
+      }`}
+    >
+      <div className="flex-1 min-w-0">
+        <div className="flex items-center gap-2 flex-wrap">
+          <span className="font-semibold text-sm">{skillDisplayName}</span>
+          {currentTier > 1 && (
+            <Badge className="bg-purple-600/50 text-purple-200 text-xs">Tier {currentTier} ({fmtDec(tierMultiplier, 0)}x)</Badge>
+          )}
+          {level > 0 && <span className="text-purple-400 text-sm">Lv.{level}</span>}
+          {selectedUpgrades.length > 0 && (
+            <div className="flex gap-1">
+              {selectedL5.length > 0 && (
+                <Badge className="bg-amber-700/50 text-amber-200 text-xs">L5: {selectedL5.length}</Badge>
+              )}
+              {selectedL10.length > 0 && (
+                <Badge className="bg-purple-700/50 text-purple-200 text-xs">L10: {selectedL10.length}</Badge>
+              )}
+            </div>
+          )}
+        </div>
+        <div className="text-xs text-gray-400 italic">{def.desc}{currentTier > 1 && ` (Tier ${currentTier}: ${fmtDec(tierMultiplier, 0)}x effect)`}</div>
+        {!prereqMet && def.req && (
+          <div className="text-xs text-red-400 mt-1">
+            Requires: {Object.entries(def.req).map(([r, rl]) => `${SKILLS_DEF[r]?.name} Lv.${rl}`).join(', ')}
+          </div>
+        )}
+        <div className="text-xs text-gray-500 mt-1">
+          <span className={effectiveSpeedMult > 1 ? 'text-green-400' : ''}>
+            Study: {formatStudyTime(effectiveStudyTime)}{effectiveSpeedMult > 1 && <span className="text-xs ml-1">({Math.round(effectiveSpeedMult * 100)}% speed)</span>}
+          </span>
+          {' • '}
+          <span className={studyCostMult < 1 ? 'text-green-400' : ''}>
+            Cost: {fmt(cost)} mana{studyCostMult < 1 && <span className="text-xs ml-1">({Math.round(studyCostMult * 100)}% cost)</span>}
+          </span>
+        </div>
+        
+        {milestoneInfo && (
+          <div className="text-xs text-amber-400 mt-1 flex items-center gap-1">
+            ⭐ Level {milestoneInfo.milestone} milestone: {milestoneInfo.selectedCount}/2 upgrades selected
+          </div>
+        )}
+      </div>
+      
+      <div className="flex items-center gap-3 flex-wrap sm:flex-nowrap">
+        {/* Level dots */}
+        <div className="flex gap-1 shrink-0">
+          {Array.from({ length: def.max }).map((_, i) => (
+            <div
+              key={i}
+              className={`w-2 h-2 rounded-full border ${
+                i < level ? 'bg-purple-500 border-purple-400' : 
+                i === 4 || i === 9 ? 'border-amber-500' : 
+                'border-gray-600'
+              }`}
+            />
+          ))}
+        </div>
+        
+        {isStudying ? (
+          <div className="text-xs text-purple-400">
+            {formatStudyTime(store.currentStudyTarget?.progress || 0)}/{formatStudyTime(tierStudyTime)}
+          </div>
+        ) : milestoneInfo ? (
+          <Button
+            size="sm"
+            className="bg-amber-600 hover:bg-amber-700"
+            onClick={() => {
+              onUpgradeClick(tieredSkillId, milestoneInfo.milestone);
+            }}
+          >
+            Choose Upgrades
+          </Button>
+        ) : canTierUp ? (
+          <Button
+            size="sm"
+            className="bg-purple-600 hover:bg-purple-700"
+            onClick={() => store.tierUpSkill(tieredSkillId)}
+          >
+            ⬆️ Tier Up
+          </Button>
+        ) : maxed ? (
+          <Badge className="bg-green-900/50 text-green-300">Maxed</Badge>
+        ) : (
+          <div className="flex gap-1">
+            <TooltipProvider>
+              <Tooltip>
+                <TooltipTrigger asChild>
+                  <Button
+                    size="sm"
+                    variant={canStudy ? 'default' : 'outline'}
+                    disabled={!canStudy}
+                    className={canStudy ? 'bg-purple-600 hover:bg-purple-700' : 'opacity-50'}
+                    onClick={() => store.startStudyingSkill(tieredSkillId)}
+                  >
+                    Study ({fmt(cost)})
+                  </Button>
+                </TooltipTrigger>
+                {!canStudy && isAnyStudyInProgress && !isStudying && (
+                  <TooltipContent>
+                    <p>Cannot switch topics while studying {SKILLS_DEF[store.currentStudyTarget?.id || '']?.name || 'another skill'}</p>
+                  </TooltipContent>
+                )}
+              </Tooltip>
+            </TooltipProvider>
+            {/* Parallel Study button */}
+            {hasParallelStudy && 
+             store.currentStudyTarget && 
+             !store.parallelStudyTarget &&
+             store.currentStudyTarget.id !== tieredSkillId &&
+             canStudy && (
+              <TooltipProvider>
+                <Tooltip>
+                  <TooltipTrigger asChild>
+                    <Button
+                      size="sm"
+                      variant="outline"
+                      className="border-cyan-500 text-cyan-400 hover:bg-cyan-900/30"
+                      onClick={() => store.startParallelStudySkill(tieredSkillId)}
+                    >
+                      ⚡
+                    </Button>
+                  </TooltipTrigger>
+                  <TooltipContent>
+                    <p>Study in parallel (50% speed)</p>
+                  </TooltipContent>
+                </Tooltip>
+              </TooltipProvider>
+            )}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}

src/components/game/SkillsTab/SkillStudyProgress.tsx

@@ -0,0 +1,46 @@
+'use client';
+
+import { useGameStore } from '@/lib/game/store';
+import { SKILLS_DEF } from '@/lib/game/constants';
+import { formatStudyTime } from './skills-utils';
+import { useStudyStats } from '@/lib/game/hooks/useGameDerived';
+import { BookOpen, X } from 'lucide-react';
+import { Button } from '@/components/ui/button';
+import { Progress } from '@/components/ui/progress';
+
+export function SkillStudyProgress() {
+  const store = useGameStore();
+  const { studySpeedMult } = useStudyStats();
+  
+  if (!store.currentStudyTarget) return null;
+  
+  const target = store.currentStudyTarget;
+  const progressPct = Math.min(100, (target.progress / target.required) * 100);
+  const def = SKILLS_DEF[target.id] || SKILLS_DEF[target.id.split('_t')[0]];
+  
+  return (
+    <div className="p-3 rounded border border-purple-600/50 bg-purple-900/20">
+      <div className="flex items-center justify-between mb-2">
+        <div className="flex items-center gap-2">
+          <BookOpen className="w-4 h-4 text-purple-400" />
+          <span className="text-sm font-semibold text-purple-300">
+            {def?.name}
+          </span>
+        </div>
+        <Button
+          variant="ghost"
+          size="sm"
+          className="h-6 w-6 p-0 text-gray-400 hover:text-white"
+          onClick={() => store.cancelStudy()}
+        >
+          <X className="w-4 h-4" />
+        </Button>
+      </div>
+      <Progress value={progressPct} className="h-2 bg-gray-800" />
+      <div className="flex justify-between text-xs text-gray-400 mt-1">
+        <span>{formatStudyTime(target.progress)} / {formatStudyTime(target.required)}</span>
+        <span>{studySpeedMult.toFixed(1)}x speed</span>
+      </div>
+    </div>
+  );
+}

src/components/game/SkillsTab/SkillUpgradeDialog.tsx

@@ -0,0 +1,129 @@
+'use client';
+
+import { useState } from 'react';
+import { useGameStore, fmt } from '@/lib/game/store';
+import { SKILLS_DEF } from '@/lib/game/constants';
+import { Badge } from '@/components/ui/badge';
+import { Button } from '@/components/ui/button';
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription } from '@/components/ui/dialog';
+
+interface SkillUpgradeDialogProps {
+  skillId: string | null;
+  milestone: 5 | 10;
+  onClose: () => void;
+}
+
+export function SkillUpgradeDialog({ skillId, milestone, onClose }: SkillUpgradeDialogProps) {
+  const store = useGameStore();
+  const [pendingUpgradeSelections, setPendingUpgradeSelections] = useState<string[]>([]);
+  
+  if (!skillId) return null;
+  
+  const skillDef = SKILLS_DEF[skillId];
+  const { available, selected: alreadySelected } = store.getSkillUpgradeChoices(skillId, milestone);
+  
+  const currentSelections = pendingUpgradeSelections.length > 0 ? pendingUpgradeSelections : alreadySelected;
+  
+  const toggleUpgrade = (upgradeId: string) => {
+    if (currentSelections.includes(upgradeId)) {
+      setPendingUpgradeSelections(currentSelections.filter(id => id !== upgradeId));
+    } else if (currentSelections.length < 2) {
+      setPendingUpgradeSelections([...currentSelections, upgradeId]);
+    }
+  };
+  
+  const handleDone = () => {
+    if (currentSelections.length === 2 && skillId) {
+      store.commitSkillUpgrades(skillId, currentSelections, milestone);
+    }
+    setPendingUpgradeSelections([]);
+    onClose();
+  };
+  
+  const handleCancel = () => {
+    setPendingUpgradeSelections([]);
+    onClose();
+  };
+  
+  return (
+    <Dialog open={!!skillId} onOpenChange={(open) => {
+      if (!open) {
+        setPendingUpgradeSelections([]);
+        onClose();
+      }
+    }}>
+      <DialogContent className="bg-gray-900 border-gray-700 max-w-lg">
+        <DialogHeader>
+          <DialogTitle className="text-amber-400">
+            Choose Upgrade - {skillDef?.name || skillId}
+          </DialogTitle>
+          <DialogDescription className="text-gray-400">
+            Level {milestone} Milestone - Select 2 upgrades ({currentSelections.length}/2 chosen)
+          </DialogDescription>
+        </DialogHeader>
+        
+        <div className="space-y-2 mt-4">
+          {available.map((upgrade) => {
+            const isSelected = currentSelections.includes(upgrade.id);
+            const canToggle = currentSelections.length < 2 || isSelected;
+            
+            return (
+              <div
+                key={upgrade.id}
+                className={`p-3 rounded border cursor-pointer transition-all ${
+                  isSelected 
+                    ? 'border-amber-500 bg-amber-900/30' 
+                    : canToggle 
+                      ? 'border-gray-600 bg-gray-800/50 hover:border-amber-500/50 hover:bg-gray-800' 
+                      : 'border-gray-700 bg-gray-800/30 opacity-50 cursor-not-allowed'
+                }`}
+                onClick={() => {
+                  if (canToggle) {
+                    toggleUpgrade(upgrade.id);
+                  }
+                }}
+              >
+                <div className="flex items-center justify-between">
+                  <div className="font-semibold text-sm text-amber-300">{upgrade.name}</div>
+                  {isSelected && <Badge className="bg-amber-600 text-amber-100">Selected</Badge>}
+                </div>
+                <div className="text-xs text-gray-400 mt-1">{upgrade.desc}</div>
+                {upgrade.effect.type === 'multiplier' && (
+                  <div className="text-xs text-green-400 mt-1">
+                    +{Math.round((upgrade.effect.value! - 1) * 100)}% {upgrade.effect.stat}
+                  </div>
+                )}
+                {upgrade.effect.type === 'bonus' && (
+                  <div className="text-xs text-blue-400 mt-1">
+                    +{upgrade.effect.value} {upgrade.effect.stat}
+                  </div>
+                )}
+                {upgrade.effect.type === 'special' && (
+                  <div className="text-xs text-cyan-400 mt-1">
+                    ⚡ {upgrade.effect.specialDesc || 'Special effect'}
+                  </div>
+                )}
+              </div>
+            );
+          })}
+        </div>
+        
+        <div className="flex justify-end gap-2 mt-4">
+          <Button 
+            variant="outline" 
+            onClick={handleCancel}
+          >
+            Cancel
+          </Button>
+          <Button 
+            variant="default"
+            onClick={handleDone}
+            disabled={currentSelections.length !== 2}
+          >
+            {currentSelections.length < 2 ? `Select ${2 - currentSelections.length} more` : 'Confirm'}
+          </Button>
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}

src/components/game/SkillsTab/skills-utils.ts

@@ -0,0 +1,82 @@
+import { SKILLS_DEF } from '@/lib/game/constants';
+import { SKILL_EVOLUTION_PATHS, getUpgradesForSkillAtMilestone, getTierMultiplier } from '@/lib/game/skill-evolution';
+import type { GameStore } from '@/lib/game/store';
+
+// Format study time
+export function formatStudyTime(hours: number): string {
+  if (hours < 1) return `${Math.round(hours * 60)}m`;
+  return `${hours.toFixed(1)}h`;
+}
+
+// Check if skill has milestone available
+export function hasMilestoneUpgrade(
+  store: GameStore,
+  skillId: string,
+  level: number
+): { milestone: 5 | 10; hasUpgrades: boolean; selectedCount: number } | null {
+  const baseSkillId = skillId.includes('_t') ? skillId.split('_t')[0] : skillId;
+  const path = SKILL_EVOLUTION_PATHS[baseSkillId];
+  if (!path) return null;
+  
+  if (level >= 5) {
+    const upgrades5 = getUpgradesForSkillAtMilestone(skillId, 5, store.skillTiers);
+    const selected5 = (store.skillUpgrades[skillId] || []).filter(id => id.includes('_l5'));
+    if (upgrades5.length > 0 && selected5.length < 2) {
+      return { milestone: 5, hasUpgrades: true, selectedCount: selected5.length };
+    }
+  }
+  
+  if (level >= 10) {
+    const upgrades10 = getUpgradesForSkillAtMilestone(skillId, 10, store.skillTiers);
+    const selected10 = (store.skillUpgrades[skillId] || []).filter(id => id.includes('_l10'));
+    if (upgrades10.length > 0 && selected10.length < 2) {
+      return { milestone: 10, hasUpgrades: true, selectedCount: selected10.length };
+    }
+  }
+  
+  return null;
+}
+
+// Get skill display info
+export function getSkillDisplayInfo(
+  store: GameStore,
+  skillId: string
+) {
+  const currentTier = store.skillTiers?.[skillId] || 1;
+  const tieredSkillId = currentTier > 1 ? `${skillId}_t${currentTier}` : skillId;
+  const def = SKILLS_DEF[skillId];
+  const tierMultiplier = getTierMultiplier(tieredSkillId);
+  
+  const level = store.skills[tieredSkillId] || store.skills[skillId] || 0;
+  const maxed = level >= def.max;
+  
+  const isStudying = (store.currentStudyTarget?.id === skillId || store.currentStudyTarget?.id === tieredSkillId) && store.currentStudyTarget?.type === 'skill';
+  const savedProgress = store.skillProgress[tieredSkillId] || store.skillProgress[skillId] || 0;
+  
+  const tierDef = SKILL_EVOLUTION_PATHS[skillId]?.tiers.find(t => t.tier === currentTier);
+  const skillDisplayName = tierDef?.name || def.name;
+  
+  // Check prerequisites
+  let prereqMet = true;
+  if (def.req) {
+    for (const [r, rl] of Object.entries(def.req)) {
+      if ((store.skills[r] || 0) < rl) {
+        prereqMet = false;
+        break;
+      }
+    }
+  }
+  
+  return {
+    currentTier,
+    tieredSkillId,
+    tierMultiplier,
+    level,
+    maxed,
+    isStudying,
+    savedProgress,
+    skillDisplayName,
+    prereqMet,
+    def,
+  };
+}

src/components/game/StatsTab.tsx

@@ -4,23 +4,21 @@ import { useGameStore, fmt, fmtDec } from '@/lib/game/store';
 import { ELEMENTS } from '@/lib/game/constants';
 import { SKILL_EVOLUTION_PATHS, getTierMultiplier } from '@/lib/game/skill-evolution';
 import { useManaStats, useCombatStats, useStudyStats } from '@/lib/game/hooks/useGameDerived';
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { Badge } from '@/components/ui/badge';
-import { Separator } from '@/components/ui/separator';
-import { Droplet, Swords, BookOpen, FlaskConical, RotateCcw, Trophy, Star } from 'lucide-react';
+import { ManaStatsSection } from './StatsTab/ManaStatsSection';
+import { CombatStatsSection } from './StatsTab/CombatStatsSection';
+import { PactStatusSection } from './StatsTab/PactStatusSection';
+import { StudyStatsSection } from './StatsTab/StudyStatsSection';
+import { ElementStatsSection } from './StatsTab/ElementStatsSection';
+import { ActiveUpgradesSection } from './StatsTab/ActiveUpgradesSection';
+import { LoopStatsSection } from './StatsTab/LoopStatsSection';
 import type { SkillUpgradeChoice } from '@/lib/game/types';
 
 export function StatsTab() {
   const store = useGameStore();
-  const { 
-    upgradeEffects, maxMana, baseRegen, clickMana, 
-    meditationMultiplier, incursionStrength, manaCascadeBonus, manaWaterfallBonus, effectiveRegen,
-    hasSteadyStream, hasManaTorrent, hasDesperateWells,
-    hasManaWaterfall, hasFlowSurge, hasManaOverflow, hasEternalFlow
-  } = useManaStats();
-  const { activeSpellDef, pactMultiplier, pactInsightMultiplier } = useCombatStats();
-  const { studySpeedMult, studyCostMult } = useStudyStats();
-  
+  const manaStats = useManaStats();
+  const combatStats = useCombatStats();
+  const studyStats = useStudyStats();
+
   // Compute element max
   const elemMax = (() => {
     const ea = store.skillTiers?.elemAttune || 1;
@@ -29,9 +27,9 @@ export function StatsTab() {
     const tierMult = getTierMultiplier(tieredSkillId);
     return 10 + level * 50 * tierMult + (store.prestigeUpgrades.elementalAttune || 0) * 25;
   })();
-  
+
   // Get all selected skill upgrades
-  const getAllSelectedUpgrades = () => {
+  const getAllSelectedUpgrades = (): { skillId: string; upgrade: SkillUpgradeChoice }[] => {
     const upgrades: { skillId: string; upgrade: SkillUpgradeChoice }[] = [];
     for (const [skillId, selectedIds] of Object.entries(store.skillUpgrades)) {
       const baseSkillId = skillId.includes('_t') ? skillId.split('_t')[0] : skillId;
@@ -40,7 +38,7 @@ export function StatsTab() {
       for (const tier of path.tiers) {
         if (tier.skillId === skillId) {
           for (const upgradeId of selectedIds) {
-            const upgrade = tier.upgrades.find(u => u.id === upgradeId);
+            const upgrade = (tier as any).upgrades?.find(u => u.id === upgradeId);
             if (upgrade) {
               upgrades.push({ skillId, upgrade });
             }
@@ -50,533 +48,43 @@ export function StatsTab() {
     }
     return upgrades;
   };
-  
+
   const selectedUpgrades = getAllSelectedUpgrades();
-  
+
   return (
     <div className="space-y-4">
-      {/* Mana Stats */}
-      <Card className="bg-gray-900/80 border-gray-700">
-        <CardHeader className="pb-2">
-          <CardTitle className="text-blue-400 game-panel-title text-xs flex items-center gap-2">
-            <Droplet className="w-4 h-4" />
-            Mana Stats
-          </CardTitle>
-        </CardHeader>
-        <CardContent>
-          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Base Max Mana:</span>
-                <span className="text-gray-200">100</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Mana Well Bonus:</span>
-                <span className="text-blue-300">
-                  {(() => {
-                    const mw = store.skillTiers?.manaWell || 1;
-                    const tieredSkillId = mw > 1 ? `manaWell_t${mw}` : 'manaWell';
-                    const level = store.skills[tieredSkillId] || store.skills.manaWell || 0;
-                    const tierMult = getTierMultiplier(tieredSkillId);
-                    return `+${fmt(level * 100 * tierMult)} (${level} lvl × 100 × ${tierMult}x tier)`;
-                  })()}
-                </span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Prestige Mana Well:</span>
-                <span className="text-blue-300">+{fmt((store.prestigeUpgrades.manaWell || 0) * 500)}</span>
-              </div>
-              {upgradeEffects.maxManaBonus > 0 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-amber-400">Upgrade Mana Bonus:</span>
-                  <span className="text-amber-300">+{fmt(upgradeEffects.maxManaBonus)}</span>
-                </div>
-              )}
-              {upgradeEffects.maxManaMultiplier > 1 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-amber-400">Upgrade Mana Multiplier:</span>
-                  <span className="text-amber-300">×{fmtDec(upgradeEffects.maxManaMultiplier, 2)}</span>
-                </div>
-              )}
-              <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
-                <span className="text-gray-300">Total Max Mana:</span>
-                <span className="text-blue-400">{fmt(maxMana)}</span>
-              </div>
-            </div>
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Base Regen:</span>
-                <span className="text-gray-200">2/hr</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Mana Flow Bonus:</span>
-                <span className="text-blue-300">
-                  {(() => {
-                    const mf = store.skillTiers?.manaFlow || 1;
-                    const tieredSkillId = mf > 1 ? `manaFlow_t${mf}` : 'manaFlow';
-                    const level = store.skills[tieredSkillId] || store.skills.manaFlow || 0;
-                    const tierMult = getTierMultiplier(tieredSkillId);
-                    return `+${fmtDec(level * 1 * tierMult)}/hr (${level} lvl × 1 × ${tierMult}x tier)`;
-                  })()}
-                </span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Mana Spring Bonus:</span>
-                <span className="text-blue-300">+{(store.skills.manaSpring || 0) * 2}/hr</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Prestige Mana Flow:</span>
-                <span className="text-blue-300">+{fmtDec((store.prestigeUpgrades.manaFlow || 0) * 0.5)}/hr</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Temporal Echo:</span>
-                <span className="text-blue-300">×{fmtDec(1 + (store.prestigeUpgrades.temporalEcho || 0) * 0.1, 2)}</span>
-              </div>
-              <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
-                <span className="text-gray-300">Base Regen:</span>
-                <span className="text-blue-400">{fmtDec(baseRegen, 2)}/hr</span>
-              </div>
-              {upgradeEffects.regenBonus > 0 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-amber-400">Upgrade Regen Bonus:</span>
-                  <span className="text-amber-300">+{fmtDec(upgradeEffects.regenBonus, 2)}/hr</span>
-                </div>
-              )}
-              {upgradeEffects.permanentRegenBonus > 0 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-amber-400">Permanent Regen Bonus:</span>
-                  <span className="text-amber-300">+{fmtDec(upgradeEffects.permanentRegenBonus, 2)}/hr</span>
-                </div>
-              )}
-              {upgradeEffects.regenMultiplier > 1 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-amber-400">Upgrade Regen Multiplier:</span>
-                  <span className="text-amber-300">×{fmtDec(upgradeEffects.regenMultiplier, 2)}</span>
-                </div>
-              )}
-            </div>
-          </div>
-          <Separator className="bg-gray-700 my-3" />
-          {/* Skill Upgrade Effects Summary */}
-          {upgradeEffects.activeUpgrades.length > 0 && (
-            <>
-              <div className="mb-2">
-                <span className="text-xs text-amber-400 game-panel-title">Active Skill Upgrades</span>
-              </div>
-              <div className="grid grid-cols-1 md:grid-cols-2 gap-2 mb-3">
-                {upgradeEffects.activeUpgrades.map((upgrade, idx) => (
-                  <div key={idx} className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
-                    <span className="text-gray-300">{upgrade.name}</span>
-                    <span className="text-gray-400">{upgrade.desc}</span>
-                  </div>
-                ))}
-              </div>
-              <Separator className="bg-gray-700 my-3" />
-            </>
-          )}
-          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Click Mana Value:</span>
-                <span className="text-purple-300">+{clickMana}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Mana Tap Bonus:</span>
-                <span className="text-purple-300">+{store.skills.manaTap || 0}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Mana Surge Bonus:</span>
-                <span className="text-purple-300">+{(store.skills.manaSurge || 0) * 3}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Mana Overflow:</span>
-                <span className="text-purple-300">×{fmtDec(1 + (store.skills.manaOverflow || 0) * 0.25, 2)}</span>
-              </div>
-            </div>
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Meditation Multiplier:</span>
-                <span className={`font-semibold ${meditationMultiplier > 1.5 ? 'text-purple-400' : 'text-gray-300'}`}>
-                  {fmtDec(meditationMultiplier, 2)}x
-                </span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Effective Regen:</span>
-                <span className="text-green-400 font-semibold">{fmtDec(effectiveRegen, 2)}/hr</span>
-              </div>
-              {incursionStrength > 0 && !hasSteadyStream && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-red-400">Incursion Penalty:</span>
-                  <span className="text-red-400">-{Math.round(incursionStrength * 100)}%</span>
-                </div>
-              )}
-              {hasSteadyStream && incursionStrength > 0 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-green-400">Steady Stream:</span>
-                  <span className="text-green-400">Immune to incursion</span>
-                </div>
-              )}
-              {manaCascadeBonus > 0 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-cyan-400">Mana Cascade Bonus:</span>
-                  <span className="text-cyan-400">+{fmtDec(manaCascadeBonus, 2)}/hr</span>
-                </div>
-              )}
-              {manaWaterfallBonus > 0 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-cyan-400">Mana Waterfall Bonus:</span>
-                  <span className="text-cyan-400">+{fmtDec(manaWaterfallBonus, 2)}/hr</span>
-                </div>
-              )}
-              {hasManaWaterfall && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-cyan-400">Mana Waterfall:</span>
-                  <span className="text-cyan-400">+0.25 regen per 100 max mana</span>
-                </div>
-              )}
-              {hasFlowSurge && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-cyan-400">Flow Surge:</span>
-                  <span className="text-cyan-400">Clicks activate +100% regen for 1hr</span>
-                </div>
-              )}
-              {hasManaOverflow && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-cyan-400">Mana Overflow:</span>
-                  <span className="text-cyan-400">Raw mana can exceed max by 20%</span>
-                </div>
-              )}
-              {hasEternalFlow && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-green-400">Eternal Flow:</span>
-                  <span className="text-green-400">Regen immune to ALL penalties</span>
-                </div>
-              )}
-              {hasManaTorrent && store.rawMana > maxMana * 0.75 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-cyan-400">Mana Torrent:</span>
-                  <span className="text-cyan-400">+50% regen (high mana)</span>
-                </div>
-              )}
-              {hasDesperateWells && store.rawMana < maxMana * 0.25 && (
-                <div className="flex justify-between text-sm">
-                  <span className="text-cyan-400">Desperate Wells:</span>
-                  <span className="text-cyan-400">+50% regen (low mana)</span>
-                </div>
-              )}
-            </div>
-          </div>
-        </CardContent>
-      </Card>
-
-      {/* Combat Stats */}
-      <Card className="bg-gray-900/80 border-gray-700">
-        <CardHeader className="pb-2">
-          <CardTitle className="text-red-400 game-panel-title text-xs flex items-center gap-2">
-            <Swords className="w-4 h-4" />
-            Combat Stats
-          </CardTitle>
-        </CardHeader>
-        <CardContent>
-          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Active Spell Base Damage:</span>
-                <span className="text-gray-200">{activeSpellDef?.dmg || 5}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Combat Training Bonus:</span>
-                <span className="text-red-300">+{(store.skills.combatTrain || 0) * 5}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Arcane Fury Multiplier:</span>
-                <span className="text-red-300">×{fmtDec(1 + (store.skills.arcaneFury || 0) * 0.1, 2)}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Elemental Mastery:</span>
-                <span className="text-red-300">×{fmtDec(1 + (store.skills.elementalMastery || 0) * 0.15, 2)}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Guardian Bane:</span>
-                <span className="text-red-300">×{fmtDec(1 + (store.skills.guardianBane || 0) * 0.2, 2)} (vs guardians)</span>
-              </div>
-            </div>
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Critical Hit Chance:</span>
-                <span className="text-amber-300">{((store.skills.precision || 0) * 5)}%</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Critical Multiplier:</span>
-                <span className="text-amber-300">1.5x</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Spell Echo Chance:</span>
-                <span className="text-amber-300">{((store.skills.spellEcho || 0) * 10)}%</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Pact Multiplier:</span>
-                <span className="text-amber-300">×{fmtDec(pactMultiplier, 2)}</span>
-              </div>
-              <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
-                <span className="text-gray-300">Total Damage:</span>
-                <span className="text-red-400">{fmt(calcDamage(store, store.activeSpell))}</span>
-              </div>
-            </div>
-          </div>
-        </CardContent>
-      </Card>
-
-      {/* Pact Status */}
-      <Card className="bg-gray-900/80 border-gray-700">
-        <CardHeader className="pb-2">
-          <CardTitle className="text-amber-400 game-panel-title text-xs flex items-center gap-2">
-            <Trophy className="w-4 h-4" />
-            Pact Status
-          </CardTitle>
-        </CardHeader>
-        <CardContent>
-          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Pact Slots:</span>
-                <span className="text-amber-300">{store.signedPacts.length} / {1 + (store.prestigeUpgrades.pactCapacity || 0)}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Damage Multiplier:</span>
-                <span className="text-amber-300">×{fmtDec(pactMultiplier, 2)}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Insight Multiplier:</span>
-                <span className="text-purple-300">×{fmtDec(pactInsightMultiplier, 2)}</span>
-              </div>
-              {store.signedPacts.length > 1 && (
-                <>
-                  <div className="flex justify-between text-sm">
-                    <span className="text-gray-400">Interference Mitigation:</span>
-                    <span className="text-green-300">{Math.min(store.pactInterferenceMitigation || 0, 5) * 10}%</span>
-                  </div>
-                  {(store.pactInterferenceMitigation || 0) >= 5 && (
-                    <div className="flex justify-between text-sm">
-                      <span className="text-cyan-400">Synergy Bonus:</span>
-                      <span className="text-cyan-300">+{((store.pactInterferenceMitigation || 0) - 5) * 10}%</span>
-                    </div>
-                  )}
-                </>
-              )}
-            </div>
-            <div className="space-y-2">
-              <div className="text-sm text-gray-400 mb-2">Unlocked Mana Types:</div>
-              <div className="flex flex-wrap gap-1">
-                {Object.entries(store.elements)
-                  .filter(([, state]) => state.unlocked)
-                  .map(([id]) => {
-                    const elem = ELEMENTS[id];
-                    return (
-                      <Badge key={id} variant="outline" className="text-xs" style={{ borderColor: elem?.color, color: elem?.color }}>
-                        {elem?.sym} {elem?.name}
-                      </Badge>
-                    );
-                  })}
-              </div>
-            </div>
-          </div>
-        </CardContent>
-      </Card>
-
-      {/* Study Stats */}
-      <Card className="bg-gray-900/80 border-gray-700">
-        <CardHeader className="pb-2">
-          <CardTitle className="text-purple-400 game-panel-title text-xs flex items-center gap-2">
-            <BookOpen className="w-4 h-4" />
-            Study Stats
-          </CardTitle>
-        </CardHeader>
-        <CardContent>
-          <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Study Speed:</span>
-                <span className="text-purple-300">×{fmtDec(studySpeedMult, 2)}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Quick Learner Bonus:</span>
-                <span className="text-purple-300">+{((store.skills.quickLearner || 0) * 10)}%</span>
-              </div>
-            </div>
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Study Cost:</span>
-                <span className="text-purple-300">{Math.round(studyCostMult * 100)}%</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Focused Mind Bonus:</span>
-                <span className="text-purple-300">-{((store.skills.focusedMind || 0) * 5)}%</span>
-              </div>
-            </div>
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Progress Retention:</span>
-                <span className="text-purple-300">{Math.round((1 + (store.skills.knowledgeRetention || 0) * 0.2) * 100)}%</span>
-              </div>
-            </div>
-          </div>
-        </CardContent>
-      </Card>
-
-      {/* Element Stats */}
-      <Card className="bg-gray-900/80 border-gray-700">
-        <CardHeader className="pb-2">
-          <CardTitle className="text-green-400 game-panel-title text-xs flex items-center gap-2">
-            <FlaskConical className="w-4 h-4" />
-            Element Stats
-          </CardTitle>
-        </CardHeader>
-        <CardContent>
-          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Element Capacity:</span>
-                <span className="text-green-300">{elemMax}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Elem. Attunement Bonus:</span>
-                <span className="text-green-300">
-                  {(() => {
-                    const ea = store.skillTiers?.elemAttune || 1;
-                    const tieredSkillId = ea > 1 ? `elemAttune_t${ea}` : 'elemAttune';
-                    const level = store.skills[tieredSkillId] || store.skills.elemAttune || 0;
-                    const tierMult = getTierMultiplier(tieredSkillId);
-                    return `+${level * 50 * tierMult}`;
-                  })()}
-                </span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Prestige Attunement:</span>
-                <span className="text-green-300">+{(store.prestigeUpgrades.elementalAttune || 0) * 25}</span>
-              </div>
-            </div>
-            <div className="space-y-2">
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Unlocked Elements:</span>
-                <span className="text-green-300">{Object.values(store.elements).filter(e => e.unlocked).length} / {Object.keys(ELEMENTS).length}</span>
-              </div>
-              <div className="flex justify-between text-sm">
-                <span className="text-gray-400">Elem. Crafting Bonus:</span>
-                <span className="text-green-300">×{fmtDec(1 + (store.skills.elemCrafting || 0) * 0.25, 2)}</span>
-              </div>
-            </div>
-          </div>
-          <Separator className="bg-gray-700 my-3" />
-          <div className="text-xs text-gray-400 mb-2">Elemental Mana Pools:</div>
-          <div className="grid grid-cols-4 sm:grid-cols-6 md:grid-cols-8 gap-2">
-            {Object.entries(store.elements)
-              .filter(([, state]) => state.unlocked)
-              .map(([id, state]) => {
-                const def = ELEMENTS[id];
-                return (
-                  <div key={id} className="p-2 rounded border border-gray-700 bg-gray-800/50 text-center">
-                    <div className="text-lg">{def?.sym}</div>
-                    <div className="text-xs text-gray-400">{state.current}/{state.max}</div>
-                  </div>
-                );
-              })}
-          </div>
-        </CardContent>
-      </Card>
-
-      {/* Active Upgrades */}
-      <Card className="bg-gray-900/80 border-gray-700">
-        <CardHeader className="pb-2">
-          <CardTitle className="text-amber-400 game-panel-title text-xs flex items-center gap-2">
-            <Star className="w-4 h-4" />
-            Active Skill Upgrades ({selectedUpgrades.length})
-          </CardTitle>
-        </CardHeader>
-        <CardContent>
-          {selectedUpgrades.length === 0 ? (
-            <div className="text-gray-500 text-sm">No skill upgrades selected yet. Level skills to 5 or 10 to choose upgrades.</div>
-          ) : (
-            <div className="grid grid-cols-1 md:grid-cols-2 gap-2">
-              {selectedUpgrades.map(({ skillId, upgrade }) => (
-                <div key={upgrade.id} className="p-2 rounded border border-amber-600/30 bg-amber-900/10">
-                  <div className="flex items-center justify-between">
-                    <span className="text-amber-300 text-sm font-semibold">{upgrade.name}</span>
-                    <Badge variant="outline" className="text-xs text-gray-400">
-                      {SKILLS_DEF[skillId]?.name || skillId}
-                    </Badge>
-                  </div>
-                  <div className="text-xs text-gray-400 mt-1">{upgrade.desc}</div>
-                  {upgrade.effect.type === 'multiplier' && (
-                    <div className="text-xs text-green-400 mt-1">
-                      +{Math.round((upgrade.effect.value! - 1) * 100)}% {upgrade.effect.stat}
-                    </div>
-                  )}
-                  {upgrade.effect.type === 'bonus' && (
-                    <div className="text-xs text-blue-400 mt-1">
-                      +{upgrade.effect.value} {upgrade.effect.stat}
-                    </div>
-                  )}
-                  {upgrade.effect.type === 'special' && (
-                    <div className="text-xs text-cyan-400 mt-1">
-                      ⚡ {upgrade.effect.specialDesc || 'Special effect active'}
-                    </div>
-                  )}
-                </div>
-              ))}
-            </div>
-          )}
-        </CardContent>
-      </Card>
-
-      {/* Loop Stats */}
-      <Card className="bg-gray-900/80 border-gray-700">
-        <CardHeader className="pb-2">
-          <CardTitle className="text-purple-400 game-panel-title text-xs flex items-center gap-2">
-            <RotateCcw className="w-4 h-4" />
-            Loop Stats
-          </CardTitle>
-        </CardHeader>
-        <CardContent>
-          <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
-            <div className="p-3 bg-gray-800/50 rounded text-center">
-              <div className="text-2xl font-bold text-amber-400 game-mono">{store.loopCount}</div>
-              <div className="text-xs text-gray-400">Loops Completed</div>
-            </div>
-            <div className="p-3 bg-gray-800/50 rounded text-center">
-              <div className="text-2xl font-bold text-purple-400 game-mono">{fmt(store.insight)}</div>
-              <div className="text-xs text-gray-400">Current Insight</div>
-            </div>
-            <div className="p-3 bg-gray-800/50 rounded text-center">
-              <div className="text-2xl font-bold text-blue-400 game-mono">{fmt(store.totalInsight)}</div>
-              <div className="text-xs text-gray-400">Total Insight</div>
-            </div>
-            <div className="p-3 bg-gray-800/50 rounded text-center">
-              <div className="text-2xl font-bold text-green-400 game-mono">{store.maxFloorReached}</div>
-              <div className="text-xs text-gray-400">Max Floor</div>
-            </div>
-          </div>
-          <Separator className="bg-gray-700 my-3" />
-          <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
-            <div className="p-3 bg-gray-800/50 rounded text-center">
-              <div className="text-xl font-bold text-gray-300 game-mono">{Object.values(store.spells).filter(s => s.learned).length}</div>
-              <div className="text-xs text-gray-400">Spells Learned</div>
-            </div>
-            <div className="p-3 bg-gray-800/50 rounded text-center">
-              <div className="text-xl font-bold text-gray-300 game-mono">{Object.values(store.skills).reduce((a, b) => a + b, 0)}</div>
-              <div className="text-xs text-gray-400">Total Skill Levels</div>
-            </div>
-            <div className="p-3 bg-gray-800/50 rounded text-center">
-              <div className="text-xl font-bold text-gray-300 game-mono">{fmt(store.totalManaGathered)}</div>
-              <div className="text-xs text-gray-400">Total Mana Gathered</div>
-            </div>
-            <div className="p-3 bg-gray-800/50 rounded text-center">
-              <div className="text-xl font-bold text-gray-300 game-mono">{store.memorySlots}</div>
-              <div className="text-xs text-gray-400">Memory Slots</div>
-            </div>
-          </div>
-        </CardContent>
-      </Card>
+      <ManaStatsSection
+        maxMana={manaStats.maxMana}
+        baseRegen={manaStats.baseRegen}
+        effectiveRegen={manaStats.effectiveRegen}
+        clickMana={manaStats.clickMana}
+        meditationMultiplier={manaStats.meditationMultiplier}
+        upgradeEffects={manaStats.upgradeEffects}
+        store={store}
+        elemMax={elemMax}
+        selectedUpgrades={selectedUpgrades}
+      />
+      <CombatStatsSection
+        store={store}
+        activeSpellDef={combatStats.activeSpellDef}
+        pactMultiplier={combatStats.pactMultiplier}
+      />
+      <PactStatusSection
+        store={store}
+        pactMultiplier={combatStats.pactMultiplier}
+        pactInsightMultiplier={combatStats.pactInsightMultiplier}
+      />
+      <StudyStatsSection
+        studySpeedMult={studyStats.studySpeedMult}
+        studyCostMult={studyStats.studyCostMult}
+        store={store}
+      />
+      <ElementStatsSection
+        store={store}
+        elemMax={elemMax}
+      />
+      <ActiveUpgradesSection selectedUpgrades={selectedUpgrades} />
+      <LoopStatsSection store={store} />
     </div>
   );
 }

src/components/game/StatsTab/ActiveUpgradesSection.tsx

@@ -0,0 +1,71 @@
+'use client';
+
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Star } from 'lucide-react';
+import { Badge } from '@/components/ui/badge';
+import { SKILLS_DEF } from '@/lib/game/constants';
+import { SKILL_EVOLUTION_PATHS } from '@/lib/game/skill-evolution';
+import type { SkillUpgradeChoice } from '@/lib/game/types';
+
+interface ActiveUpgradesSectionProps {
+  selectedUpgrades: { skillId: string; upgrade: SkillUpgradeChoice }[];
+}
+
+export function ActiveUpgradesSection({ selectedUpgrades }: ActiveUpgradesSectionProps) {
+  if (selectedUpgrades.length === 0) {
+    return (
+      <Card className="bg-gray-900/80 border-gray-700">
+        <CardHeader className="pb-2">
+          <CardTitle className="text-amber-400 game-panel-title text-xs flex items-center gap-2">
+            <Star className="w-4 h-4" />
+            Active Skill Upgrades (0)
+          </CardTitle>
+        </CardHeader>
+        <CardContent>
+          <div className="text-gray-500 text-sm">No skill upgrades selected yet. Level skills to 5 or 10 to choose upgrades.</div>
+        </CardContent>
+      </Card>
+    );
+  }
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-amber-400 game-panel-title text-xs flex items-center gap-2">
+          <Star className="w-4 h-4" />
+          Active Skill Upgrades ({selectedUpgrades.length})
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-2">
+          {selectedUpgrades.map(({ skillId, upgrade }) => (
+            <div key={upgrade.id} className="p-2 rounded border border-amber-600/30 bg-amber-900/10">
+              <div className="flex items-center justify-between">
+                <span className="text-amber-300 text-sm font-semibold">{upgrade.name}</span>
+                <Badge variant="outline" className="text-xs text-gray-400">
+                  {SKILLS_DEF[skillId]?.name || skillId}
+                </Badge>
+              </div>
+              <div className="text-xs text-gray-400 mt-1">{upgrade.desc}</div>
+              {upgrade.effect.type === 'multiplier' && (
+                <div className="text-xs text-green-400 mt-1">
+                  +{Math.round((upgrade.effect.value! - 1) * 100)}% {upgrade.effect.stat}
+                </div>
+              )}
+              {upgrade.effect.type === 'bonus' && (
+                <div className="text-xs text-blue-400 mt-1">
+                  +{upgrade.effect.value} {upgrade.effect.stat}
+                </div>
+              )}
+              {upgrade.effect.type === 'special' && (
+                <div className="text-xs text-cyan-400 mt-1">
+                  ⚡ {upgrade.effect.specialDesc || 'Special effect active'}
+                </div>
+              )}
+            </div>
+          ))}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/components/game/StatsTab/CombatStatsSection.tsx

@@ -0,0 +1,76 @@
+'use client';
+
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Swords } from 'lucide-react';
+import type { GameStore } from '@/lib/game/store';
+import { fmt, fmtDec } from '@/lib/game/store';
+import { getUnifiedEffects } from '@/lib/game/effects';
+
+interface CombatStatsSectionProps {
+  store: GameStore;
+  activeSpellDef: any;
+  pactMultiplier: number;
+}
+
+export function CombatStatsSection({ store, activeSpellDef, pactMultiplier }: CombatStatsSectionProps) {
+  const upgradeEffects = getUnifiedEffects(store);
+  
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-red-400 game-panel-title text-xs flex items-center gap-2">
+          <Swords className="w-4 h-4" />
+          Combat Stats
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Active Spell Base Damage:</span>
+              <span className="text-gray-200">{activeSpellDef?.dmg || 5}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Combat Training Bonus:</span>
+              <span className="text-red-300">+{(store.skills.combatTrain || 0) * 5}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Arcane Fury Multiplier:</span>
+              <span className="text-red-300">×{fmtDec(1 + (store.skills.arcaneFury || 0) * 0.1, 2)}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Elemental Mastery:</span>
+              <span className="text-red-300">×{fmtDec(1 + (store.skills.elementalMastery || 0) * 0.15, 2)}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Guardian Bane:</span>
+              <span className="text-red-300">×{fmtDec(1 + (store.skills.guardianBane || 0) * 0.2, 2)} (vs guardians)</span>
+            </div>
+          </div>
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Critical Hit Chance:</span>
+              <span className="text-amber-300">{((store.skills.precision || 0) * 5)}%</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Critical Multiplier:</span>
+              <span className="text-amber-300">1.5x</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Spell Echo Chance:</span>
+              <span className="text-amber-300">{((store.skills.spellEcho || 0) * 10)}%</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Pact Multiplier:</span>
+              <span className="text-amber-300">×{fmtDec(pactMultiplier, 2)}</span>
+            </div>
+            <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
+              <span className="text-gray-300">Total Damage:</span>
+              <span className="text-red-400">{fmt(store.activeSpell ? activeSpellDef?.dmg * pactMultiplier : 0)}</span>
+            </div>
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/components/game/StatsTab/ElementStatsSection.tsx

@@ -0,0 +1,77 @@
+'use client';
+
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Separator } from '@/components/ui/separator';
+import { FlaskConical } from 'lucide-react';
+import { ELEMENTS } from '@/lib/game/constants';
+import { getTierMultiplier } from '@/lib/game/skill-evolution';
+import { fmt, fmtDec } from '@/lib/game/store';
+
+interface ElementStatsSectionProps {
+  store: any;
+  elemMax: number;
+}
+
+export function ElementStatsSection({ store, elemMax }: ElementStatsSectionProps) {
+  const getElemAttunementBonus = () => {
+    const ea = store.skillTiers?.elemAttune || 1;
+    const tieredSkillId = ea > 1 ? `elemAttune_t${ea}` : 'elemAttune';
+    const level = store.skills[tieredSkillId] || store.skills.elemAttune || 0;
+    const tierMult = getTierMultiplier(tieredSkillId);
+    return level * 50 * tierMult;
+  };
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-green-400 game-panel-title text-xs flex items-center gap-2">
+          <FlaskConical className="w-4 h-4" />
+          Element Stats
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Element Capacity:</span>
+              <span className="text-green-300">{elemMax}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Elem. Attunement Bonus:</span>
+              <span className="text-green-300">+{getElemAttunementBonus()}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Prestige Attunement:</span>
+              <span className="text-green-300">+{(store.prestigeUpgrades.elementalAttune || 0) * 25}</span>
+            </div>
+          </div>
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Unlocked Elements:</span>
+              <span className="text-green-300">{Object.values(store.elements).filter((e: any) => e.unlocked).length} / {Object.keys(ELEMENTS).length}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Elem. Crafting Bonus:</span>
+              <span className="text-green-300">×{fmtDec(1 + (store.skills.elemCrafting || 0) * 0.25, 2)}</span>
+            </div>
+          </div>
+        </div>
+        <Separator className="bg-gray-700 my-3" />
+        <div className="text-xs text-gray-400 mb-2">Elemental Mana Pools:</div>
+        <div className="grid grid-cols-4 sm:grid-cols-6 md:grid-cols-8 gap-2">
+          {Object.entries(store.elements)
+            .filter(([, state]: [string, any]) => state.unlocked)
+            .map(([id, state]: [string, any]) => {
+              const def = ELEMENTS[id];
+              return (
+                <div key={id} className="p-2 rounded border border-gray-700 bg-gray-800/50 text-center">
+                  <div className="text-lg">{def?.sym}</div>
+                  <div className="text-xs text-gray-400">{state.current}/{state.max}</div>
+                </div>
+              );
+            })}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/components/game/StatsTab/LoopStatsSection.tsx

@@ -0,0 +1,65 @@
+'use client';
+
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Separator } from '@/components/ui/separator';
+import { RotateCcw } from 'lucide-react';
+import { fmt } from '@/lib/game/store';
+
+interface LoopStatsSectionProps {
+  store: any;
+}
+
+export function LoopStatsSection({ store }: LoopStatsSectionProps) {
+  const spellsLearned = Object.values(store.spells as Record<string, { learned: boolean }>).filter((s) => s.learned).length;
+  const totalSkillLevels = Object.values(store.skills as Record<string, number>).reduce((a: number, b: number) => a + b, 0);
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-purple-400 game-panel-title text-xs flex items-center gap-2">
+          <RotateCcw className="w-4 h-4" />
+          Loop Stats
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
+          <div className="p-3 bg-gray-800/50 rounded text-center">
+            <div className="text-2xl font-bold text-amber-400 game-mono">{store.loopCount}</div>
+            <div className="text-xs text-gray-400">Loops Completed</div>
+          </div>
+          <div className="p-3 bg-gray-800/50 rounded text-center">
+            <div className="text-2xl font-bold text-purple-400 game-mono">{fmt(store.insight)}</div>
+            <div className="text-xs text-gray-400">Current Insight</div>
+          </div>
+          <div className="p-3 bg-gray-800/50 rounded text-center">
+            <div className="text-2xl font-bold text-blue-400 game-mono">{fmt(store.totalInsight)}</div>
+            <div className="text-xs text-gray-400">Total Insight</div>
+          </div>
+          <div className="p-3 bg-gray-800/50 rounded text-center">
+            <div className="text-2xl font-bold text-green-400 game-mono">{store.maxFloorReached}</div>
+            <div className="text-xs text-gray-400">Max Floor</div>
+          </div>
+        </div>
+        <Separator className="bg-gray-700 my-3" />
+        <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
+          <div className="p-3 bg-gray-800/50 rounded text-center">
+            <div className="text-xl font-bold text-gray-300 game-mono">{spellsLearned}</div>
+            <div className="text-xs text-gray-400">Spells Learned</div>
+          </div>
+          <div className="p-3 bg-gray-800/50 rounded text-center">
+            <div className="text-xl font-bold text-gray-300 game-mono">{totalSkillLevels}</div>
+            <div className="text-xs text-gray-400">Total Skill Levels</div>
+          </div>
+          <div className="p-3 bg-gray-800/50 rounded text-center">
+            <div className="text-xl font-bold text-gray-300 game-mono">{fmt(store.totalManaGathered)}</div>
+            <div className="text-xs text-gray-400">Total Mana Gathered</div>
+          </div>
+          <div className="p-3 bg-gray-800/50 rounded text-center">
+            <div className="text-xl font-bold text-gray-300 game-mono">{store.memorySlots}</div>
+            <div className="text-xs text-gray-400">Memory Slots</div>
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/components/game/StatsTab/ManaStatsSection.tsx

@@ -0,0 +1,241 @@
+'use client';
+
+import { fmt, fmtDec } from '@/lib/game/store';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Droplet } from 'lucide-react';
+import type { SkillUpgradeChoice } from '@/lib/game/types';
+
+interface ManaStatsSectionProps {
+  maxMana: number;
+  baseRegen: number;
+  effectiveRegen: number;
+  clickMana: number;
+  meditationMultiplier: number;
+  upgradeEffects: any;
+  store: any;
+  elemMax: number;
+  selectedUpgrades: { skillId: string; upgrade: SkillUpgradeChoice }[];
+}
+
+export function ManaStatsSection({
+  maxMana,
+  baseRegen,
+  effectiveRegen,
+  clickMana,
+  meditationMultiplier,
+  upgradeEffects,
+  store,
+  elemMax,
+  selectedUpgrades,
+}: ManaStatsSectionProps) {
+  const getTierMultiplier = (skillId: string) => {
+    // Simplified - import from skill-evolution in real implementation
+    return 1;
+  };
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-blue-400 game-panel-title text-xs flex items-center gap-2">
+          <Droplet className="w-4 h-4" />
+          Mana Stats
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Base Max Mana:</span>
+              <span className="text-gray-200">100</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Mana Well Bonus:</span>
+              <span className="text-blue-300">
+                {(() => {
+                  const mw = store.skillTiers?.manaWell || 1;
+                  const tieredSkillId = mw > 1 ? `manaWell_t${mw}` : 'manaWell';
+                  const level = store.skills[tieredSkillId] || store.skills.manaWell || 0;
+                  const tierMult = getTierMultiplier(tieredSkillId);
+                  return `+${fmt(level * 100 * tierMult)} (${level} lvl × 100 × ${tierMult}x tier)`;
+                })()}
+              </span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Prestige Mana Well:</span>
+              <span className="text-blue-300">+{fmt((store.prestigeUpgrades.manaWell || 0) * 500)}</span>
+            </div>
+            {upgradeEffects.maxManaBonus > 0 && (
+              <div className="flex justify-between text-sm">
+                <span className="text-amber-400">Upgrade Mana Bonus:</span>
+                <span className="text-amber-300">+{fmt(upgradeEffects.maxManaBonus)}</span>
+              </div>
+            )}
+            {upgradeEffects.maxManaMultiplier > 1 && (
+              <div className="flex justify-between text-sm">
+                <span className="text-amber-400">Upgrade Mana Multiplier:</span>
+                <span className="text-amber-300">×{fmtDec(upgradeEffects.maxManaMultiplier, 2)}</span>
+              </div>
+            )}
+            <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
+              <span className="text-gray-300">Total Max Mana:</span>
+              <span className="text-blue-400">{fmt(maxMana)}</span>
+            </div>
+          </div>
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Base Regen:</span>
+              <span className="text-gray-200">2/hr</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Mana Flow Bonus:</span>
+              <span className="text-blue-300">
+                {(() => {
+                  const mf = store.skillTiers?.manaFlow || 1;
+                  const tieredSkillId = mf > 1 ? `manaFlow_t${mf}` : 'manaFlow';
+                  const level = store.skills[tieredSkillId] || store.skills.manaFlow || 0;
+                  const tierMult = getTierMultiplier(tieredSkillId);
+                  return `+${fmtDec(level * 1 * tierMult)}/hr (${level} lvl × 1 × ${tierMult}x tier)`;
+                })()}
+              </span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Mana Spring Bonus:</span>
+              <span className="text-blue-300">+{(store.skills.manaSpring || 0) * 2}/hr</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Prestige Mana Flow:</span>
+              <span className="text-blue-300">+{fmtDec((store.prestigeUpgrades.manaFlow || 0) * 0.5)}/hr</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Temporal Echo:</span>
+              <span className="text-blue-300">×{fmtDec(1 + (store.prestigeUpgrades.temporalEcho || 0) * 0.1, 2)}</span>
+            </div>
+            <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
+              <span className="text-gray-300">Base Regen:</span>
+              <span className="text-blue-400">{fmtDec(baseRegen, 2)}/hr</span>
+            </div>
+            {upgradeEffects.regenBonus > 0 && (
+              <div className="flex justify-between text-sm">
+                <span className="text-amber-400">Upgrade Regen Bonus:</span>
+                <span className="text-amber-300">+{fmtDec(upgradeEffects.regenBonus, 2)}/hr</span>
+              </div>
+            )}
+            {upgradeEffects.permanentRegenBonus > 0 && (
+              <div className="flex justify-between text-sm">
+                <span className="text-amber-400">Permanent Regen Bonus:</span>
+                <span className="text-amber-300">+{fmtDec(upgradeEffects.permanentRegenBonus, 2)}/hr</span>
+              </div>
+            )}
+            {upgradeEffects.regenMultiplier > 1 && (
+              <div className="flex justify-between text-sm">
+                <span className="text-amber-400">Upgrade Regen Multiplier:</span>
+                <span className="text-amber-300">×{fmtDec(upgradeEffects.regenMultiplier, 2)}</span>
+              </div>
+            )}
+          </div>
+        </div>
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-4 mt-4">
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Click Mana Value:</span>
+              <span className="text-purple-300">+{clickMana}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Mana Tap Bonus:</span>
+              <span className="text-purple-300">+{store.skills.manaTap || 0}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Mana Surge Bonus:</span>
+              <span className="text-purple-300">+{(store.skills.manaSurge || 0) * 3}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Mana Overflow:</span>
+              <span className="text-purple-300">×{fmtDec(1 + (store.skills.manaOverflow || 0) * 0.25, 2)}</span>
+            </div>
+          </div>
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Meditation Multiplier:</span>
+              <span className={`font-semibold ${meditationMultiplier > 1.5 ? 'text-purple-400' : 'text-gray-300'}`}>
+                {fmtDec(meditationMultiplier, 2)}x
+              </span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Incursion Strength:</span>
+              <span className="text-red-400">{Math.round(upgradeEffects.incursionStrength * 100)}%</span>
+            </div>
+            <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
+              <span className="text-gray-300">Effective Regen:</span>
+              <span className="text-green-400 font-semibold">{fmtDec(effectiveRegen, 2)}/hr</span>
+            </div>
+          </div>
+        </div>
+        {/* Special Effects */}
+        {(upgradeEffects.hasSteadyStream || upgradeEffects.hasManaTorrent || 
+          upgradeEffects.hasDesperateWells || upgradeEffects.manaCascadeBonus > 0 ||
+          upgradeEffects.manaWaterfallBonus > 0) && (
+          <>
+            <div className="mt-3 mb-2"><span className="text-xs text-amber-400 game-panel-title">Special Effects</span></div>
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-2">
+              {upgradeEffects.hasSteadyStream && (
+                <div className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
+                  <span className="text-gray-300">Steady Stream:</span>
+                  <span className="text-green-400">Immune to incursion</span>
+                </div>
+              )}
+              {upgradeEffects.manaCascadeBonus > 0 && (
+                <div className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
+                  <span className="text-gray-300">Mana Cascade:</span>
+                  <span className="text-cyan-400">+{fmtDec(upgradeEffects.manaCascadeBonus, 2)}/hr</span>
+                </div>
+              )}
+              {upgradeEffects.manaWaterfallBonus > 0 && (
+                <div className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
+                  <span className="text-gray-300">Mana Waterfall:</span>
+                  <span className="text-cyan-400">+{fmtDec(upgradeEffects.manaWaterfallBonus, 2)}/hr</span>
+                </div>
+              )}
+              {upgradeEffects.hasFlowSurge && (
+                <div className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
+                  <span className="text-gray-300">Flow Surge:</span>
+                  <span className="text-cyan-400">Clicks +100% regen for 1hr</span>
+                </div>
+              )}
+              {upgradeEffects.hasManaOverflow && (
+                <div className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
+                  <span className="text-gray-300">Mana Overflow:</span>
+                  <span className="text-cyan-400">Raw can exceed max by 20%</span>
+                </div>
+              )}
+              {upgradeEffects.hasEternalFlow && (
+                <div className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
+                  <span className="text-gray-300">Eternal Flow:</span>
+                  <span className="text-green-400">Regen immune to ALL penalties</span>
+                </div>
+              )}
+              {upgradeEffects.hasManaTorrent && upgradeEffects.rawMana > maxMana * 0.75 && (
+                <div className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
+                  <span className="text-gray-300">Mana Torrent:</span>
+                  <span className="text-cyan-400">+50% regen (high mana)</span>
+                </div>
+              )}
+              {upgradeEffects.hasDesperateWells && upgradeEffects.rawMana < maxMana * 0.25 && (
+                <div className="flex justify-between text-xs bg-gray-800/50 rounded px-2 py-1">
+                  <span className="text-gray-300">Desperate Wells:</span>
+                  <span className="text-cyan-400">+50% regen (low mana)</span>
+                </div>
+              )}
+            </div>
+          </>
+        )}
+        {/* Element Max */}
+        <div className="mt-3 pt-3 border-t border-gray-700">
+          <div className="flex justify-between text-sm">
+            <span className="text-gray-400">Element Capacity:</span>
+            <span className="text-green-300">{elemMax}</span>
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/components/game/StatsTab/PactStatusSection.tsx

@@ -0,0 +1,74 @@
+'use client';
+
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Trophy } from 'lucide-react';
+import { fmtDec } from '@/lib/game/store';
+import { ELEMENTS } from '@/lib/game/constants';
+
+interface PactStatusSectionProps {
+  store: any;
+  pactMultiplier: number;
+  pactInsightMultiplier: number;
+}
+
+export function PactStatusSection({ store, pactMultiplier, pactInsightMultiplier }: PactStatusSectionProps) {
+  const pactInterferenceMitigation = store.pactInterferenceMitigation || 0;
+  
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-amber-400 game-panel-title text-xs flex items-center gap-2">
+          <Trophy className="w-4 h-4" />
+          Pact Status
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Pact Slots:</span>
+              <span className="text-amber-300">{store.signedPacts.length} / {1 + (store.prestigeUpgrades.pactCapacity || 0)}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Damage Multiplier:</span>
+              <span className="text-amber-300">×{fmtDec(pactMultiplier, 2)}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Insight Multiplier:</span>
+              <span className="text-purple-300">×{fmtDec(pactInsightMultiplier, 2)}</span>
+            </div>
+            {store.signedPacts.length > 1 && (
+              <>
+                <div className="flex justify-between text-sm">
+                  <span className="text-gray-400">Interference Mitigation:</span>
+                  <span className="text-green-300">{Math.min(pactInterferenceMitigation, 5) * 10}%</span>
+                </div>
+                {pactInterferenceMitigation >= 5 && (
+                  <div className="flex justify-between text-sm">
+                    <span className="text-cyan-400">Synergy Bonus:</span>
+                    <span className="text-cyan-300">+{(pactInterferenceMitigation - 5) * 10}%</span>
+                  </div>
+                )}
+              </>
+            )}
+          </div>
+          <div className="space-y-2">
+            <div className="text-sm text-gray-400 mb-2">Unlocked Mana Types:</div>
+            <div className="flex flex-wrap gap-1">
+              {Object.keys(store.elements).map((id) => {
+                const state = store.elements[id];
+                if (!state.unlocked) return null;
+                const elem = ELEMENTS[id];
+                return (
+                  <span key={id} className="px-2 py-1 text-xs rounded border" style={{ borderColor: elem?.color, color: elem?.color }}>
+                    {elem?.sym} {elem?.name}
+                  </span>
+                );
+              })}
+            </div>
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/components/game/StatsTab/StudyStatsSection.tsx

@@ -0,0 +1,54 @@
+'use client';
+
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { BookOpen } from 'lucide-react';
+import { fmtDec } from '@/lib/game/store';
+
+interface StudyStatsSectionProps {
+  studySpeedMult: number;
+  studyCostMult: number;
+  store: any;
+}
+
+export function StudyStatsSection({ studySpeedMult, studyCostMult, store }: StudyStatsSectionProps) {
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-purple-400 game-panel-title text-xs flex items-center gap-2">
+          <BookOpen className="w-4 h-4" />
+          Study Stats
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Study Speed:</span>
+              <span className="text-purple-300">×{fmtDec(studySpeedMult, 2)}</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Quick Learner Bonus:</span>
+              <span className="text-purple-300">+{((store.skills.quickLearner || 0) * 10)}%</span>
+            </div>
+          </div>
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Study Cost:</span>
+              <span className="text-purple-300">{Math.round(studyCostMult * 100)}%</span>
+            </div>
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Focused Mind Bonus:</span>
+              <span className="text-purple-300">-{((store.skills.focusedMind || 0) * 5)}%</span>
+            </div>
+          </div>
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span className="text-gray-400">Progress Retention:</span>
+              <span className="text-purple-300">{Math.round((1 + (store.skills.knowledgeRetention || 0) * 0.2) * 100)}%</span>
+            </div>
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}

src/components/game/crafting/EnchantmentDesigner.tsx

@@ -1,33 +1,28 @@
 'use client';
 
 import { useState, useMemo } from 'react';
-import { Button } from '@/components/ui/button';
-import { Progress } from '@/components/ui/progress';
 import { GameCard } from '@/components/ui/game-card';
-import { SectionHeader } from '@/components/ui/section-header';
-import { StatRow } from '@/components/ui/stat-row';
-import { ActionButton } from '@/components/ui/action-button';
-import { Badge } from '@/components/ui/badge';
-import { ScrollArea } from '@/components/ui/scroll-area';
 import { Separator } from '@/components/ui/separator';
-import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/components/ui/tooltip';
-import { AlertCircle, Wand2, Scroll, Trash2, Plus, Minus, Check } from 'lucide-react';
 import { EQUIPMENT_TYPES } from '@/lib/game/data/equipment';
-import { ENCHANTMENT_EFFECTS, calculateEffectCapacityCost } from '@/lib/game/data/enchantment-effects';
-import type { EquipmentInstance, EnchantmentDesign, DesignEffect, EquipmentCraftingProgress, EquipmentCategory } from '@/lib/game/types';
-import { fmt, type GameStore } from '@/lib/game/store';
-
-export interface EnchantmentDesignerProps {
-  store: GameStore;
-  selectedEquipmentType: string | null;
-  setSelectedEquipmentType: (type: string | null) => void;
-  selectedEffects: DesignEffect[];
-  setSelectedEffects: (effects: DesignEffect[]) => void;
-  designName: string;
-  setDesignName: (name: string) => void;
-  selectedDesign: string | null;
-  setSelectedDesign: (id: string | null) => void;
-}
+import { ENCHANTMENT_EFFECTS } from '@/lib/game/data/enchantment-effects';
+import type { EquipmentInstance, EnchantmentDesign, DesignEffect, EquipmentCraftingProgress } from '@/lib/game/types';
+import { type GameStore } from '@/lib/game/store';
+import type { EnchantmentDesignerProps } from './EnchantmentDesigner/types';
+import { EquipmentTypeSelector } from './EnchantmentDesigner/EquipmentTypeSelector';
+import { EffectSelector } from './EnchantmentDesigner/EffectSelector';
+import { SavedDesigns } from './EnchantmentDesigner/SavedDesigns';
+import { DesignForm } from './EnchantmentDesigner/DesignForm';
+import {
+  getAvailableEffects,
+  getIncompatibleEffects,
+  getOwnedEquipmentTypes,
+  getIncompatibilityReason,
+  calculateDesignCapacityCost,
+  getEquipmentCapacity,
+  calculateDesignTime,
+  addEffectToDesign,
+  removeEffectFromDesign,
+} from './EnchantmentDesigner/utils';
 
 export function EnchantmentDesigner({
   store,
@@ -52,55 +47,23 @@ export function EnchantmentDesigner({
   const efficiencyBonus = (skills.efficientEnchant || 0) * 0.05;
 
   // Calculate total capacity cost for current design
-  const designCapacityCost = selectedEffects.reduce(
-    (total, eff) => total + calculateEffectCapacityCost(eff.effectId, eff.stacks, efficiencyBonus),
-    0
-  );
+  const designCapacityCost = calculateDesignCapacityCost(selectedEffects, efficiencyBonus);
 
   // Get capacity limit for selected equipment type
-  const selectedEquipmentCapacity = selectedEquipmentType ? EQUIPMENT_TYPES[selectedEquipmentType]?.baseCapacity || 0 : 0;
+  const selectedEquipmentCapacity = getEquipmentCapacity(selectedEquipmentType);
   const isOverCapacity = selectedEquipmentType ? designCapacityCost > selectedEquipmentCapacity : false;
 
   // Calculate design time
-  const designTime = selectedEffects.reduce((total, eff) => total + 0.5 * eff.stacks, 1);
+  const designTime = calculateDesignTime(selectedEffects);
 
   // Add effect to design
   const addEffect = (effectId: string) => {
-    const existing = selectedEffects.find(e => e.effectId === effectId);
-    const effectDef = ENCHANTMENT_EFFECTS[effectId];
-    if (!effectDef) return;
-
-    if (existing) {
-      if (existing.stacks < effectDef.maxStacks) {
-        setSelectedEffects(selectedEffects.map(e =>
-          e.effectId === effectId
-            ? { ...e, stacks: e.stacks + 1 }
-            : e
-        ));
-      }
-    } else {
-      setSelectedEffects([...selectedEffects, {
-        effectId,
-        stacks: 1,
-        capacityCost: calculateEffectCapacityCost(effectId, 1, efficiencyBonus),
-      }]);
-    }
+    addEffectToDesign(effectId, selectedEffects, efficiencyBonus, setSelectedEffects);
   };
 
   // Remove effect from design
   const removeEffect = (effectId: string) => {
-    const existing = selectedEffects.find(e => e.effectId === effectId);
-    if (!existing) return;
-
-    if (existing.stacks > 1) {
-      setSelectedEffects(selectedEffects.map(e =>
-        e.effectId === effectId
-          ? { ...e, stacks: e.stacks - 1 }
-          : e
-      ));
-    } else {
-      setSelectedEffects(selectedEffects.filter(e => e.effectId !== effectId));
-    }
+    removeEffectFromDesign(effectId, selectedEffects, setSelectedEffects);
   };
 
   // Create design
@@ -117,331 +80,73 @@ export function EnchantmentDesigner({
   };
 
   // Get available effects for selected equipment type (only unlocked ones)
-  const getAvailableEffects = () => {
-    if (!selectedEquipmentType) return [];
-    const type = EQUIPMENT_TYPES[selectedEquipmentType];
-    if (!type) return [];
-
-    return Object.values(ENCHANTMENT_EFFECTS).filter(
-      effect =>
-        effect.allowedEquipmentCategories.includes(type.category) &&
-        unlockedEffects.includes(effect.id)
-    );
-  };
+  const availableEffects = getAvailableEffects(selectedEquipmentType, unlockedEffects);
 
   // Get incompatible effects (unlocked but not for this equipment type)
-  // Requirement (task3 bug #7): Show incompatible enchantments in greyed-out "Unavailable" section
-  const getIncompatibleEffects = () => {
-    if (!selectedEquipmentType) return [];
-    const type = EQUIPMENT_TYPES[selectedEquipmentType];
-    if (!type) return [];
-
-    return Object.values(ENCHANTMENT_EFFECTS).filter(
-      effect =>
-        !effect.allowedEquipmentCategories.includes(type.category) &&
-        unlockedEffects.includes(effect.id)
-    );
-  };
+  const incompatibleEffects = getIncompatibleEffects(selectedEquipmentType, unlockedEffects);
 
   // Get equipment types that the player actually owns (has instances of)
-  // This ensures enchantment compatibility is based on owned items, not just blueprints
-  const getOwnedEquipmentTypes = () => {
-    // Get all unique equipment type IDs from owned instances
-    const ownedEquipmentTypeIds = new Set<string>();
-
-    // Check all equipment instances the player owns
-    for (const instance of Object.values(store.equipmentInstances)) {
-      ownedEquipmentTypeIds.add(instance.typeId);
-    }
-
-    // Filter EQUIPMENT_TYPES to only include types the player owns
-    return Object.values(EQUIPMENT_TYPES).filter(type => ownedEquipmentTypeIds.has(type.id));
-  };
-
-  const ownedEquipmentTypes = getOwnedEquipmentTypes();
-  const availableEffects = getAvailableEffects();
-  const incompatibleEffects = getIncompatibleEffects();
+  const ownedEquipmentTypes = getOwnedEquipmentTypes(store);
 
   // Get the reason why an effect is incompatible
-  const getIncompatibilityReason = (effect: typeof ENCHANTMENT_EFFECTS[string]): string => {
-    if (!selectedEquipmentType) return 'No equipment selected';
-    const type = EQUIPMENT_TYPES[selectedEquipmentType];
-    if (!type) return 'Unknown equipment type';
-
-    // Check what categories this effect is allowed for
-    const allowedCategories = effect.allowedEquipmentCategories;
-    const equipmentCategory = type.category;
-
-    if (allowedCategories.includes(equipmentCategory)) {
-      return 'Compatible';
-    }
-
-    // Provide specific reasons
-    if (allowedCategories.includes('weapon' as EquipmentCategory) && equipmentCategory !== 'sword' && equipmentCategory !== 'caster' && equipmentCategory !== 'catalyst') {
-      return `Requires a weapon (${allowedCategories.filter(c => ['sword', 'caster', 'catalyst'].includes(c)).join(', ')})`;
-    }
-
-    return `Requires ${allowedCategories.join(' or ')} equipment`;
+  const getIncompatibilityReasonWrapper = (effect: { id: string; name: string; description: string; allowedEquipmentCategories: any[] }) => {
+    return getIncompatibilityReason(effect, selectedEquipmentType);
   };
 
   // Render stage
   return (
     <div className="grid grid-cols-1 lg:grid-cols-2 gap-4">
       {/* Equipment Type Selection */}
-      <GameCard variant="default">
-        <SectionHeader title="1. Select Equipment Type" />
-        {designProgress ? (
-          <div className="space-y-3">
-            <div className="text-sm text-[var(--text-secondary)]">
-              Designing for: {EQUIPMENT_TYPES[designProgress.equipmentType]?.name}
-            </div>
-            <div className="text-sm font-semibold text-[var(--mana-light)]">{designProgress.name}</div>
-            <Progress
-              value={(designProgress.progress / designProgress.required) * 100}
-              className="h-3 bg-[var(--bg-sunken)]"
-            />
-            <div className="flex justify-between text-xs text-[var(--text-muted)]">
-              <span>{designProgress.progress.toFixed(1)}h / {designProgress.required.toFixed(1)}h</span>
-              <ActionButton size="sm" variant="outline" onClick={cancelDesign}>Cancel</ActionButton>
-            </div>
-          </div>
-        ) : (
-          <ScrollArea className="h-64">
-            <div className="grid grid-cols-2 gap-2">
-              {ownedEquipmentTypes.map(type => (
-                <div
-                  key={type.id}
-                  className={`p-2 rounded border cursor-pointer transition-all
-                    ${selectedEquipmentType === type.id
-                      ? 'border-[var(--mana-light)] bg-[var(--mana-light)]/10'
-                      : 'border-[var(--border-default)] bg-[var(--bg-sunken)]/50 hover:border-[var(--border-default)]'
-                    }`}
-                  onClick={() => setSelectedEquipmentType(type.id)}
-                  role="button"
-                  tabIndex={0}
-                  aria-label={`Select ${type.name}`}
-                >
-                  <div className="text-sm font-semibold text-[var(--text-primary)]">{type.name}</div>
-                  <div className="text-xs text-[var(--text-muted)]">Cap: {type.baseCapacity}</div>
-                </div>
-              ))}
-            </div>
-            {ownedEquipmentTypes.length === 0 && (
-              <div className="text-center text-[var(--text-muted)] py-4 text-sm">
-                No equipment blueprints owned. Craft or find equipment blueprints first.
-              </div>
-            )}
-          </ScrollArea>
-        )}
-      </GameCard>
+      <EquipmentTypeSelector
+        ownedEquipmentTypes={ownedEquipmentTypes}
+        selectedEquipmentType={selectedEquipmentType}
+        setSelectedEquipmentType={setSelectedEquipmentType}
+        designProgress={designProgress}
+        cancelDesign={cancelDesign}
+      />
 
       {/* Effect Selection */}
       <GameCard variant="default">
-        <SectionHeader title="2. Select Effects" />
-        {enchantingLevel < 1 ? (
-          <div className="text-center text-[var(--text-muted)] py-8">
-            <Wand2 className="w-12 h-12 mx-auto mb-2 opacity-50 text-[var(--text-disabled)]" />
-            <p>Learn Enchanting skill to design enchantments</p>
-          </div>
-        ) : designProgress ? (
-          <div className="space-y-2">
-            <div className="text-sm text-[var(--text-secondary)]">Design in progress...</div>
-            {designProgress.effects.map(eff => {
-              const def = ENCHANTMENT_EFFECTS[eff.effectId];
-              return (
-                <div key={eff.effectId} className="flex justify-between text-sm text-[var(--text-primary)]">
-                  <span>{def?.name} x{eff.stacks}</span>
-                  <span className="text-[var(--text-muted)]">{eff.capacityCost} cap</span>
-                </div>
-              );
-            })}
-          </div>
-        ) : !selectedEquipmentType ? (
-          <div className="text-center text-[var(--text-muted)] py-8">
-            Select an equipment type first
-          </div>
-        ) : (
+        <EffectSelector
+          selectedEquipmentType={selectedEquipmentType}
+          selectedEffects={selectedEffects}
+          setSelectedEffects={setSelectedEffects}
+          availableEffects={availableEffects}
+          incompatibleEffects={incompatibleEffects}
+          enchantingLevel={enchantingLevel}
+          efficiencyBonus={efficiencyBonus}
+          designProgress={designProgress}
+          addEffect={addEffect}
+          removeEffect={removeEffect}
+          getIncompatibilityReason={getIncompatibilityReasonWrapper}
+        />
+
+        {/* Selected effects summary - only show when not in design progress and equipment type is selected */}
+        {!designProgress && selectedEquipmentType && (
           <>
-            <ScrollArea className="h-48 mb-4">
-              <div className="space-y-2">
-                {/* Compatible Effects */}
-                {availableEffects.map(effect => {
-                  const selected = selectedEffects.find(e => e.effectId === effect.id);
-                  const cost = calculateEffectCapacityCost(effect.id, (selected?.stacks || 0) + 1, efficiencyBonus);
-
-                  return (
-                    <div
-                      key={effect.id}
-                      className={`p-2 rounded border transition-all
-                        ${selected
-                          ? 'border-[var(--mana-stellar)] bg-[var(--mana-stellar)]/10'
-                          : 'border-[var(--border-default)] bg-[var(--bg-sunken)]/50'
-                        }`}
-                    >
-                      <div className="flex justify-between items-start">
-                        <div className="flex-1">
-                          <div className="text-sm font-semibold text-[var(--text-primary)]">{effect.name}</div>
-                          <div className="text-xs text-[var(--text-muted)]">{effect.description}</div>
-                          <div className="text-xs text-[var(--text-disabled)] mt-1">
-                            Cost: {effect.baseCapacityCost} cap | Max: {effect.maxStacks}
-                          </div>
-                        </div>
-                        <div className="flex gap-1">
-                          {selected && (
-                            <ActionButton
-                              size="sm"
-                              variant="outline"
-                              className="h-6 w-6 p-0"
-                              onClick={() => removeEffect(effect.id)}
-                            >
-                              <Minus className="w-3 h-3" />
-                            </ActionButton>
-                          )}
-                          <ActionButton
-                            size="sm"
-                            variant="outline"
-                            className="h-6 w-6 p-0"
-                            onClick={() => addEffect(effect.id)}
-                            disabled={!selected && selectedEffects.length >= 5}
-                          >
-                            <Plus className="w-3 h-3" />
-                          </ActionButton>
-                        </div>
-                      </div>
-                      {selected && (
-                        <Badge variant="outline" className="mt-1 text-xs border-[var(--mana-stellar)] text-[var(--mana-stellar)]">
-                          {selected.stacks}/{effect.maxStacks}
-                        </Badge>
-                      )}
-                    </div>
-                  );
-                })}
-
-                {/* Incompatible Effects - Requirement: greyed-out "Unavailable" section with tooltips */}
-                {incompatibleEffects.length > 0 && (
-                  <>
-                    <Separator className="bg-[var(--border-subtle)] my-2" />
-                    <div className="text-xs font-semibold text-[var(--text-disabled)] uppercase tracking-wider mb-2">
-                      Unavailable
-                    </div>
-                    {incompatibleEffects.map(effect => {
-                      const reason = getIncompatibilityReason(effect);
-
-                      return (
-                        <TooltipProvider key={effect.id}>
-                          <Tooltip>
-                            <TooltipTrigger asChild>
-                              <div
-                                className="p-2 rounded border border-[var(--border-subtle)] bg-[var(--bg-sunken)]/30 opacity-50 cursor-not-allowed"
-                              >
-                                <div className="flex justify-between items-start">
-                                  <div className="flex-1">
-                                    <div className="text-sm font-semibold text-[var(--text-disabled)]">{effect.name}</div>
-                                    <div className="text-xs text-[var(--text-disabled)]">{effect.description}</div>
-                                  </div>
-                                  <AlertCircle size={14} className="text-[var(--text-disabled)]" />
-                                </div>
-                              </div>
-                            </TooltipTrigger>
-                            <TooltipContent className="bg-[var(--bg-elevated)] border-[var(--border-default)] text-[var(--text-primary)]">
-                              <p className="font-semibold">Incompatible Effect</p>
-                              <p className="text-xs text-[var(--text-muted)] mt-1">{reason}</p>
-                            </TooltipContent>
-                          </Tooltip>
-                        </TooltipProvider>
-                      );
-                    })}
-                  </>
-                )}
-              </div>
-            </ScrollArea>
-
-            {/* Selected effects summary */}
             <Separator className="bg-[var(--border-subtle)] my-2" />
-            <div className="space-y-2">
-              <input
-                type="text"
-                placeholder="Design name..."
-                value={designName}
-                onChange={(e) => setDesignName(e.target.value)}
-                className="w-full bg-[var(--bg-sunken)] border border-[var(--border-default)] rounded px-3 py-2 text-sm text-[var(--text-primary)] placeholder:text-[var(--text-disabled)] focus:outline-none focus:border-[var(--border-focus)]"
-                aria-label="Design name"
-              />
-              <StatRow
-                label="Total Capacity:"
-                value={
-                  <span className={isOverCapacity ? 'text-[var(--color-danger)]' : 'text-[var(--color-success)]'}>
-                    {designCapacityCost.toFixed(0)} / {selectedEquipmentCapacity}
-                  </span>
-                }
-              />
-              <StatRow
-                label="Design Time:"
-                value={`${designTime.toFixed(1)}h`}
-                highlight="default"
-              />
-              <ActionButton
-                className="w-full"
-                disabled={!designName || selectedEffects.length === 0 || isOverCapacity}
-                onClick={handleCreateDesign}
-              >
-                {isOverCapacity ? 'Over Capacity!' : `Start Design (${designTime.toFixed(1)}h)`}
-              </ActionButton>
-            </div>
+            <DesignForm
+              designName={designName}
+              setDesignName={setDesignName}
+              selectedEffects={selectedEffects}
+              designCapacityCost={designCapacityCost}
+              selectedEquipmentCapacity={selectedEquipmentCapacity}
+              isOverCapacity={isOverCapacity}
+              designTime={designTime}
+              selectedEquipmentType={selectedEquipmentType}
+              handleCreateDesign={handleCreateDesign}
+            />
           </>
         )}
       </GameCard>
 
       {/* Saved Designs */}
-      <GameCard variant="default" className="lg:col-span-2">
-        <SectionHeader title={`Saved Designs (${enchantmentDesigns.length})`} />
-        {enchantmentDesigns.length === 0 ? (
-          <div className="text-center text-[var(--text-muted)] py-4">
-            No saved designs yet
-          </div>
-        ) : (
-          <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-3">
-            {enchantmentDesigns.map(design => (
-              <div
-                key={design.id}
-                className={`p-3 rounded border cursor-pointer transition-all
-                  ${selectedDesign === design.id
-                    ? 'border-[var(--mana-light)] bg-[var(--mana-light)]/10'
-                    : 'border-[var(--border-default)] bg-[var(--bg-sunken)]/50 hover:border-[var(--border-default)]'
-                  }`}
-                onClick={() => setSelectedDesign(design.id)}
-                role="button"
-                tabIndex={0}
-                aria-label={`Select design: ${design.name}`}
-              >
-                <div className="flex justify-between items-start">
-                  <div>
-                    <div className="font-semibold text-[var(--text-primary)]">{design.name}</div>
-                    <div className="text-xs text-[var(--text-muted)]">
-                      {EQUIPMENT_TYPES[design.equipmentType]?.name}
-                    </div>
-                  </div>
-                  <ActionButton
-                    size="sm"
-                    variant="ghost"
-                    className="h-6 w-6 p-0 text-[var(--text-muted)] hover:text-[var(--color-danger)]"
-                    onClick={(e) => {
-                      e.stopPropagation();
-                      deleteDesign(design.id);
-                    }}
-                    aria-label={`Delete design: ${design.name}`}
-                  >
-                    <Trash2 className="w-4 h-4" />
-                  </ActionButton>
-                </div>
-                <div className="mt-2 text-xs text-[var(--text-muted)]">
-                  {design.effects.length} effects | {design.totalCapacityUsed} cap
-                </div>
-              </div>
-            ))}
-          </div>
-        )}
-      </GameCard>
+      <SavedDesigns
+        enchantmentDesigns={enchantmentDesigns}
+        selectedDesign={selectedDesign}
+        setSelectedDesign={setSelectedDesign}
+        deleteDesign={deleteDesign}
+      />
     </div>
   );
 }

src/components/game/crafting/EnchantmentDesigner/DesignForm.tsx

@@ -0,0 +1,52 @@
+'use client';
+
+import { ActionButton } from '@/components/ui/action-button';
+import { StatRow } from '@/components/ui/stat-row';
+import type { DesignFormProps } from './types';
+
+export function DesignForm({
+  designName,
+  setDesignName,
+  selectedEffects,
+  designCapacityCost,
+  selectedEquipmentCapacity,
+  isOverCapacity,
+  designTime,
+  selectedEquipmentType,
+  handleCreateDesign,
+}: DesignFormProps) {
+  return (
+    <div className="space-y-2">
+      <input
+        type="text"
+        placeholder="Design name..."
+        value={designName}
+        onChange={(e) => setDesignName(e.target.value)}
+        className="w-full bg-[var(--bg-sunken)] border border-[var(--border-default)] rounded px-3 py-2 text-sm text-[var(--text-primary)] placeholder:text-[var(--text-disabled)] focus:outline-none focus:border-[var(--border-focus)]"
+        aria-label="Design name"
+      />
+      <StatRow
+        label="Total Capacity:"
+        value={
+          <span className={isOverCapacity ? 'text-[var(--color-danger)]' : 'text-[var(--color-success)]'}>
+            {designCapacityCost.toFixed(0)} / {selectedEquipmentCapacity}
+          </span>
+        }
+      />
+      <StatRow
+        label="Design Time:"
+        value={`${designTime.toFixed(1)}h`}
+        highlight="default"
+      />
+      <ActionButton
+        className="w-full"
+        disabled={!designName || selectedEffects.length === 0 || isOverCapacity}
+        onClick={handleCreateDesign}
+      >
+        {isOverCapacity ? 'Over Capacity!' : `Start Design (${designTime.toFixed(1)}h)`}
+      </ActionButton>
+    </div>
+  );
+}
+
+DesignForm.displayName = 'DesignForm';

src/components/game/crafting/EnchantmentDesigner/EffectSelector.tsx

@@ -0,0 +1,152 @@
+'use client';
+
+import { GameCard } from '@/components/ui/game-card';
+import { SectionHeader } from '@/components/ui/section-header';
+import { ActionButton } from '@/components/ui/action-button';
+import { Badge } from '@/components/ui/badge';
+import { ScrollArea } from '@/components/ui/scroll-area';
+import { Separator } from '@/components/ui/separator';
+import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/components/ui/tooltip';
+import { AlertCircle, Wand2, Plus, Minus } from 'lucide-react';
+import { ENCHANTMENT_EFFECTS, calculateEffectCapacityCost } from '@/lib/game/data/enchantment-effects';
+import type { EffectSelectorProps } from './types';
+
+export function EffectSelector({
+  selectedEquipmentType,
+  selectedEffects,
+  setSelectedEffects,
+  availableEffects,
+  incompatibleEffects,
+  enchantingLevel,
+  efficiencyBonus,
+  designProgress,
+  addEffect,
+  removeEffect,
+  getIncompatibilityReason,
+}: EffectSelectorProps) {
+  return (
+    <>
+      {enchantingLevel < 1 ? (
+        <div className="text-center text-[var(--text-muted)] py-8">
+          <Wand2 className="w-12 h-12 mx-auto mb-2 opacity-50 text-[var(--text-disabled)]" />
+          <p>Learn Enchanting skill to design enchantments</p>
+        </div>
+      ) : designProgress ? (
+        <div className="space-y-2">
+          <div className="text-sm text-[var(--text-secondary)]">Design in progress...</div>
+          {designProgress.effects.map(eff => {
+            const def = ENCHANTMENT_EFFECTS[eff.effectId];
+            return (
+              <div key={eff.effectId} className="flex justify-between text-sm text-[var(--text-primary)]">
+                <span>{def?.name} x{eff.stacks}</span>
+                <span className="text-[var(--text-muted)]">{eff.capacityCost} cap</span>
+              </div>
+            );
+          })}
+        </div>
+      ) : !selectedEquipmentType ? (
+        <div className="text-center text-[var(--text-muted)] py-8">
+          Select an equipment type first
+        </div>
+      ) : (
+        <>
+          <ScrollArea className="h-48 mb-4">
+            <div className="space-y-2">
+              {/* Compatible Effects */}
+              {availableEffects.map(effect => {
+                const selected = selectedEffects.find(e => e.effectId === effect.id);
+                const cost = calculateEffectCapacityCost(effect.id, (selected?.stacks || 0) + 1, efficiencyBonus);
+
+                return (
+                  <div
+                    key={effect.id}
+                    className={`p-2 rounded border transition-all
+                      ${selected
+                        ? 'border-[var(--mana-stellar)] bg-[var(--mana-stellar)]/10'
+                        : 'border-[var(--border-default)] bg-[var(--bg-sunken)]/50'
+                      }`}
+                  >
+                    <div className="flex justify-between items-start">
+                      <div className="flex-1">
+                        <div className="text-sm font-semibold text-[var(--text-primary)]">{effect.name}</div>
+                        <div className="text-xs text-[var(--text-muted)]">{effect.description}</div>
+                        <div className="text-xs text-[var(--text-disabled)] mt-1">
+                          Cost: {effect.baseCapacityCost} cap | Max: {effect.maxStacks}
+                        </div>
+                      </div>
+                      <div className="flex gap-1">
+                        {selected && (
+                          <ActionButton
+                            size="sm"
+                            variant="outline"
+                            className="h-6 w-6 p-0"
+                            onClick={() => removeEffect(effect.id)}
+                          >
+                            <Minus className="w-3 h-3" />
+                          </ActionButton>
+                        )}
+                        <ActionButton
+                          size="sm"
+                          variant="outline"
+                          className="h-6 w-6 p-0"
+                          onClick={() => addEffect(effect.id)}
+                          disabled={!selected && selectedEffects.length >= 5}
+                        >
+                          <Plus className="w-3 h-3" />
+                        </ActionButton>
+                      </div>
+                    </div>
+                    {selected && (
+                      <Badge variant="outline" className="mt-1 text-xs border-[var(--mana-stellar)] text-[var(--mana-stellar)]">
+                        {selected.stacks}/{effect.maxStacks}
+                      </Badge>
+                    )}
+                  </div>
+                );
+              })}
+
+              {/* Incompatible Effects - Requirement: greyed-out "Unavailable" section with tooltips */}
+              {incompatibleEffects.length > 0 && (
+                <>
+                  <Separator className="bg-[var(--border-subtle)] my-2" />
+                  <div className="text-xs font-semibold text-[var(--text-disabled)] uppercase tracking-wider mb-2">
+                    Unavailable
+                  </div>
+                  {incompatibleEffects.map(effect => {
+                    const reason = getIncompatibilityReason(effect);
+
+                    return (
+                      <TooltipProvider key={effect.id}>
+                        <Tooltip>
+                          <TooltipTrigger asChild>
+                            <div
+                              className="p-2 rounded border border-[var(--border-subtle)] bg-[var(--bg-sunken)]/30 opacity-50 cursor-not-allowed"
+                            >
+                              <div className="flex justify-between items-start">
+                                <div className="flex-1">
+                                  <div className="text-sm font-semibold text-[var(--text-disabled)]">{effect.name}</div>
+                                  <div className="text-xs text-[var(--text-disabled)]">{effect.description}</div>
+                                </div>
+                                <AlertCircle size={14} className="text-[var(--text-disabled)]" />
+                              </div>
+                            </div>
+                          </TooltipTrigger>
+                          <TooltipContent className="bg-[var(--bg-elevated)] border-[var(--border-default)] text-[var(--text-primary)]">
+                            <p className="font-semibold">Incompatible Effect</p>
+                            <p className="text-xs text-[var(--text-muted)] mt-1">{reason}</p>
+                          </TooltipContent>
+                        </Tooltip>
+                      </TooltipProvider>
+                    );
+                  })}
+                </>
+              )}
+            </div>
+          </ScrollArea>
+        </>
+      )}
+    </>
+  );
+}
+
+EffectSelector.displayName = 'EffectSelector';

src/components/game/crafting/EnchantmentDesigner/EquipmentTypeSelector.tsx

@@ -0,0 +1,67 @@
+'use client';
+
+import { GameCard } from '@/components/ui/game-card';
+import { SectionHeader } from '@/components/ui/section-header';
+import { ActionButton } from '@/components/ui/action-button';
+import { Progress } from '@/components/ui/progress';
+import { ScrollArea } from '@/components/ui/scroll-area';
+import type { EquipmentTypeSelectorProps } from './types';
+
+export function EquipmentTypeSelector({
+  ownedEquipmentTypes,
+  selectedEquipmentType,
+  setSelectedEquipmentType,
+  designProgress,
+  cancelDesign,
+}: EquipmentTypeSelectorProps) {
+  return (
+    <GameCard variant="default">
+      <SectionHeader title="1. Select Equipment Type" />
+      {designProgress ? (
+        <div className="space-y-3">
+          <div className="text-sm text-[var(--text-secondary)]">
+            Designing for: {designProgress.equipmentType}
+          </div>
+          <div className="text-sm font-semibold text-[var(--mana-light)]">{designProgress.name}</div>
+          <Progress
+            value={(designProgress.progress / designProgress.required) * 100}
+            className="h-3 bg-[var(--bg-sunken)]"
+          />
+          <div className="flex justify-between text-xs text-[var(--text-muted)]">
+            <span>{designProgress.progress.toFixed(1)}h / {designProgress.required.toFixed(1)}h</span>
+            <ActionButton size="sm" variant="outline" onClick={cancelDesign}>Cancel</ActionButton>
+          </div>
+        </div>
+      ) : (
+        <ScrollArea className="h-64">
+          <div className="grid grid-cols-2 gap-2">
+            {ownedEquipmentTypes.map(type => (
+              <div
+                key={type.id}
+                className={`p-2 rounded border cursor-pointer transition-all
+                  ${selectedEquipmentType === type.id
+                    ? 'border-[var(--mana-light)] bg-[var(--mana-light)]/10'
+                    : 'border-[var(--border-default)] bg-[var(--bg-sunken)]/50 hover:border-[var(--border-default)]'
+                  }`}
+                onClick={() => setSelectedEquipmentType(type.id)}
+                role="button"
+                tabIndex={0}
+                aria-label={`Select ${type.name}`}
+              >
+                <div className="text-sm font-semibold text-[var(--text-primary)]">{type.name}</div>
+                <div className="text-xs text-[var(--text-muted)]">Cap: {type.baseCapacity}</div>
+              </div>
+            ))}
+          </div>
+          {ownedEquipmentTypes.length === 0 && (
+            <div className="text-center text-[var(--text-muted)] py-4 text-sm">
+              No equipment blueprints owned. Craft or find equipment blueprints first.
+            </div>
+          )}
+        </ScrollArea>
+      )}
+    </GameCard>
+  );
+}
+
+EquipmentTypeSelector.displayName = 'EquipmentTypeSelector';

src/components/game/crafting/EnchantmentDesigner/SavedDesigns.tsx

@@ -0,0 +1,69 @@
+'use client';
+
+import { GameCard } from '@/components/ui/game-card';
+import { SectionHeader } from '@/components/ui/section-header';
+import { ActionButton } from '@/components/ui/action-button';
+import { Trash2 } from 'lucide-react';
+import { EQUIPMENT_TYPES } from '@/lib/game/data/equipment';
+import type { SavedDesignsProps } from './types';
+
+export function SavedDesigns({
+  enchantmentDesigns,
+  selectedDesign,
+  setSelectedDesign,
+  deleteDesign,
+}: SavedDesignsProps) {
+  return (
+    <GameCard variant="default" className="lg:col-span-2">
+      <SectionHeader title={`Saved Designs (${enchantmentDesigns.length})`} />
+      {enchantmentDesigns.length === 0 ? (
+        <div className="text-center text-[var(--text-muted)] py-4">
+          No saved designs yet
+        </div>
+      ) : (
+        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-3">
+          {enchantmentDesigns.map(design => (
+            <div
+              key={design.id}
+              className={`p-3 rounded border cursor-pointer transition-all
+                ${selectedDesign === design.id
+                  ? 'border-[var(--mana-light)] bg-[var(--mana-light)]/10'
+                  : 'border-[var(--border-default)] bg-[var(--bg-sunken)]/50 hover:border-[var(--border-default)]'
+                }`}
+              onClick={() => setSelectedDesign(design.id)}
+              role="button"
+              tabIndex={0}
+              aria-label={`Select design: ${design.name}`}
+            >
+              <div className="flex justify-between items-start">
+                <div>
+                  <div className="font-semibold text-[var(--text-primary)]">{design.name}</div>
+                  <div className="text-xs text-[var(--text-muted)]">
+                    {EQUIPMENT_TYPES[design.equipmentType]?.name}
+                  </div>
+                </div>
+                <ActionButton
+                  size="sm"
+                  variant="ghost"
+                  className="h-6 w-6 p-0 text-[var(--text-muted)] hover:text-[var(--color-danger)]"
+                  onClick={(e) => {
+                    e.stopPropagation();
+                    deleteDesign(design.id);
+                  }}
+                  aria-label={`Delete design: ${design.name}`}
+                >
+                  <Trash2 className="w-4 h-4" />
+                </ActionButton>
+              </div>
+              <div className="mt-2 text-xs text-[var(--text-muted)]">
+                {design.effects.length} effects | {design.totalCapacityUsed} cap
+              </div>
+            </div>
+          ))}
+        </div>
+      )}
+    </GameCard>
+  );
+}
+
+SavedDesigns.displayName = 'SavedDesigns';

src/components/game/crafting/EnchantmentDesigner/types.ts

@@ -0,0 +1,55 @@
+import type { EquipmentInstance, EnchantmentDesign, DesignEffect, EquipmentCraftingProgress, EquipmentCategory } from '@/lib/game/types';
+import type { GameStore } from '@/lib/game/store';
+
+export interface EnchantmentDesignerProps {
+  store: GameStore;
+  selectedEquipmentType: string | null;
+  setSelectedEquipmentType: (type: string | null) => void;
+  selectedEffects: DesignEffect[];
+  setSelectedEffects: (effects: DesignEffect[]) => void;
+  designName: string;
+  setDesignName: (name: string) => void;
+  selectedDesign: string | null;
+  setSelectedDesign: (id: string | null) => void;
+}
+
+export interface EquipmentTypeSelectorProps {
+  ownedEquipmentTypes: Array<{ id: string; name: string; baseCapacity: number }>;
+  selectedEquipmentType: string | null;
+  setSelectedEquipmentType: (type: string | null) => void;
+  designProgress: EquipmentCraftingProgress | null;
+  cancelDesign: () => void;
+}
+
+export interface EffectSelectorProps {
+  selectedEquipmentType: string | null;
+  selectedEffects: DesignEffect[];
+  setSelectedEffects: (effects: DesignEffect[]) => void;
+  availableEffects: Array<{ id: string; name: string; description: string; baseCapacityCost: number; maxStacks: number }>;
+  incompatibleEffects: Array<{ id: string; name: string; description: string }>;
+  enchantingLevel: number;
+  efficiencyBonus: number;
+  designProgress: EquipmentCraftingProgress | null;
+  addEffect: (effectId: string) => void;
+  removeEffect: (effectId: string) => void;
+  getIncompatibilityReason: (effect: { id: string; name: string; description: string; allowedEquipmentCategories: EquipmentCategory[] }) => string;
+}
+
+export interface SavedDesignsProps {
+  enchantmentDesigns: EnchantmentDesign[];
+  selectedDesign: string | null;
+  setSelectedDesign: (id: string | null) => void;
+  deleteDesign: (id: string) => void;
+}
+
+export interface DesignFormProps {
+  designName: string;
+  setDesignName: (name: string) => void;
+  selectedEffects: DesignEffect[];
+  designCapacityCost: number;
+  selectedEquipmentCapacity: number;
+  isOverCapacity: boolean;
+  designTime: number;
+  selectedEquipmentType: string | null;
+  handleCreateDesign: () => void;
+}

src/components/game/crafting/EnchantmentDesigner/utils.ts

@@ -0,0 +1,164 @@
+import { EQUIPMENT_TYPES } from '@/lib/game/data/equipment';
+import { ENCHANTMENT_EFFECTS, calculateEffectCapacityCost } from '@/lib/game/data/enchantment-effects';
+import type { DesignEffect, EquipmentCategory } from '@/lib/game/types';
+import type { GameStore } from '@/lib/game/store';
+
+/**
+ * Get available effects for selected equipment type (only unlocked ones)
+ * Requirement (task3 bug #7): Show incompatible enchantments in greyed-out "Unavailable" section
+ */
+export function getAvailableEffects(
+  selectedEquipmentType: string | null,
+  unlockedEffects: string[]
+) {
+  if (!selectedEquipmentType) return [];
+  const type = EQUIPMENT_TYPES[selectedEquipmentType];
+  if (!type) return [];
+
+  return Object.values(ENCHANTMENT_EFFECTS).filter(
+    effect =>
+      effect.allowedEquipmentCategories.includes(type.category) &&
+      unlockedEffects.includes(effect.id)
+  );
+}
+
+/**
+ * Get incompatible effects (unlocked but not for this equipment type)
+ */
+export function getIncompatibleEffects(
+  selectedEquipmentType: string | null,
+  unlockedEffects: string[]
+) {
+  if (!selectedEquipmentType) return [];
+  const type = EQUIPMENT_TYPES[selectedEquipmentType];
+  if (!type) return [];
+
+  return Object.values(ENCHANTMENT_EFFECTS).filter(
+    effect =>
+      !effect.allowedEquipmentCategories.includes(type.category) &&
+      unlockedEffects.includes(effect.id)
+  );
+}
+
+/**
+ * Get equipment types that the player actually owns (has instances of)
+ * This ensures enchantment compatibility is based on owned items, not just blueprints
+ */
+export function getOwnedEquipmentTypes(store: GameStore) {
+  // Get all unique equipment type IDs from owned instances
+  const ownedEquipmentTypeIds = new Set<string>();
+
+  // Check all equipment instances the player owns
+  for (const instance of Object.values(store.equipmentInstances)) {
+    ownedEquipmentTypeIds.add(instance.typeId);
+  }
+
+  // Filter EQUIPMENT_TYPES to only include types the player owns
+  return Object.values(EQUIPMENT_TYPES).filter(type => ownedEquipmentTypeIds.has(type.id));
+}
+
+/**
+ * Get the reason why an effect is incompatible
+ */
+export function getIncompatibilityReason(
+  effect: { id: string; name: string; description: string; allowedEquipmentCategories: EquipmentCategory[] },
+  selectedEquipmentType: string | null
+): string {
+  if (!selectedEquipmentType) return 'No equipment selected';
+  const type = EQUIPMENT_TYPES[selectedEquipmentType];
+  if (!type) return 'Unknown equipment type';
+
+  // Check what categories this effect is allowed for
+  const allowedCategories = effect.allowedEquipmentCategories;
+  const equipmentCategory = type.category;
+
+  if (allowedCategories.includes(equipmentCategory)) {
+    return 'Compatible';
+  }
+
+  // Provide specific reasons
+  if (allowedCategories.includes('weapon' as EquipmentCategory) && equipmentCategory !== 'sword' && equipmentCategory !== 'caster' && equipmentCategory !== 'catalyst') {
+    return `Requires a weapon (${allowedCategories.filter(c => ['sword', 'caster', 'catalyst'].includes(c)).join(', ')})`;
+  }
+
+  return `Requires ${allowedCategories.join(' or ')} equipment`;
+}
+
+/**
+ * Calculate total capacity cost for current design
+ */
+export function calculateDesignCapacityCost(
+  selectedEffects: DesignEffect[],
+  efficiencyBonus: number
+): number {
+  return selectedEffects.reduce(
+    (total, eff) => total + calculateEffectCapacityCost(eff.effectId, eff.stacks, efficiencyBonus),
+    0
+  );
+}
+
+/**
+ * Get capacity limit for selected equipment type
+ */
+export function getEquipmentCapacity(selectedEquipmentType: string | null): number {
+  return selectedEquipmentType ? EQUIPMENT_TYPES[selectedEquipmentType]?.baseCapacity || 0 : 0;
+}
+
+/**
+ * Calculate design time
+ */
+export function calculateDesignTime(selectedEffects: DesignEffect[]): number {
+  return selectedEffects.reduce((total, eff) => total + 0.5 * eff.stacks, 1);
+}
+
+/**
+ * Add effect to design
+ */
+export function addEffectToDesign(
+  effectId: string,
+  selectedEffects: DesignEffect[],
+  efficiencyBonus: number,
+  setSelectedEffects: (effects: DesignEffect[]) => void
+) {
+  const existing = selectedEffects.find(e => e.effectId === effectId);
+  const effectDef = ENCHANTMENT_EFFECTS[effectId];
+  if (!effectDef) return;
+
+  if (existing) {
+    if (existing.stacks < effectDef.maxStacks) {
+      setSelectedEffects(selectedEffects.map(e =>
+        e.effectId === effectId
+          ? { ...e, stacks: e.stacks + 1 }
+          : e
+      ));
+    }
+  } else {
+    setSelectedEffects([...selectedEffects, {
+      effectId,
+      stacks: 1,
+      capacityCost: calculateEffectCapacityCost(effectId, 1, efficiencyBonus),
+    }]);
+  }
+}
+
+/**
+ * Remove effect from design
+ */
+export function removeEffectFromDesign(
+  effectId: string,
+  selectedEffects: DesignEffect[],
+  setSelectedEffects: (effects: DesignEffect[]) => void
+) {
+  const existing = selectedEffects.find(e => e.effectId === effectId);
+  if (!existing) return;
+
+  if (existing.stacks > 1) {
+    setSelectedEffects(selectedEffects.map(e =>
+      e.effectId === effectId
+        ? { ...e, stacks: e.stacks - 1 }
+        : e
+    ));
+  } else {
+    setSelectedEffects(selectedEffects.filter(e => e.effectId !== effectId));
+  }
+}

src/components/game/tabs/PrestigeTab.tsx

@@ -3,7 +3,8 @@
 'use client';
 
 import { useState } from 'react';
-import { useGameStore, useGameLoop } from '@/lib/game/store';
+import { useGameStore } from '@/lib/game/store';
+import { useGameLoop } from '@/lib/game/stores/gameHooks';
 import { getUnifiedEffects } from '@/lib/game/effects';
 import {
   ELEMENTS,

src/lib/game/__tests__/skills-tests/ascension-skills.test.ts

@@ -0,0 +1,122 @@
+/**
+ * Ascension Skills Tests
+ * 
+ * Tests for ascension-related skills: Insight Harvest, Guardian Bane
+ */
+
+import { describe, it, expect } from 'vitest';
+import { SKILLS_DEF } from '../constants';
+import { calcInsight } from '../computed-stats';
+import type { GameState } from '../types';
+
+function createMockState(overrides: Partial<GameState> = {}): GameState {
+  const elements: Record<string, { current: number; max: number; unlocked: boolean }> = {};
+  const baseElements = ['fire', 'water', 'air', 'earth', 'light', 'dark', 'death', 'transference', 'metal', 'sand', 'crystal', 'stellar', 'void', 'lightning'];
+  baseElements.forEach((k) => {
+    elements[k] = { current: 0, max: 10, unlocked: baseElements.slice(0, 4).includes(k) };
+  });
+  
+  return {
+    day: 1,
+    hour: 0,
+    loopCount: 0,
+    gameOver: false,
+    victory: false,
+    paused: false,
+    rawMana: 100,
+    meditateTicks: 0,
+    totalManaGathered: 0,
+    elements,
+    currentFloor: 1,
+    floorHP: 100,
+    floorMaxHP: 100,
+    castProgress: 0,
+    currentRoom: {
+      roomType: 'combat',
+      enemies: [{ id: 'enemy', hp: 100, maxHP: 100, armor: 0, dodgeChance: 0, element: 'fire' }],
+    },
+    maxFloorReached: 1,
+    signedPacts: [],
+    activeSpell: 'manaBolt',
+    currentAction: 'meditate',
+    spells: { manaBolt: { learned: true, level: 1, studyProgress: 0 } },
+    skills: {},
+    skillProgress: {},
+    skillUpgrades: {},
+    skillTiers: {},
+    parallelStudyTarget: null,
+    equippedInstances: { mainHand: null, offHand: null, head: null, body: null, hands: null, accessory1: null, accessory2: null },
+    equipmentInstances: {},
+    enchantmentDesigns: [],
+    designProgress: null,
+    preparationProgress: null,
+    applicationProgress: null,
+    equipmentCraftingProgress: null,
+    unlockedEffects: [],
+    equipmentSpellStates: [],
+    equipment: { mainHand: null, offHand: null, head: null, body: null, hands: null, accessory: null },
+    inventory: [],
+    blueprints: {},
+    lootInventory: { materials: {}, blueprints: [] },
+    schedule: [],
+    autoSchedule: false,
+    studyQueue: [],
+    craftQueue: [],
+    currentStudyTarget: null,
+    achievements: { unlocked: [], progress: {} },
+    totalSpellsCast: 0,
+    totalDamageDealt: 0,
+    totalCraftsCompleted: 0,
+    attunements: {
+      enchanter: { id: 'enchanter', active: true, level: 1, experience: 0 },
+      invoker: { id: 'invoker', active: false, level: 1, experience: 0 },
+      fabricator: { id: 'fabricator', active: false, level: 1, experience: 0 },
+    },
+    golemancy: {
+      enabledGolems: [],
+      summonedGolems: [],
+      lastSummonFloor: 0,
+    },
+    insight: 0,
+    totalInsight: 0,
+    prestigeUpgrades: {},
+    memorySlots: 3,
+    memories: [],
+    incursionStrength: 0,
+    containmentWards: 0,
+    log: [],
+    loopInsight: 0,
+    ...overrides,
+  } as GameState;
+}
+
+describe('Ascension Skills', () => {
+  describe('Insight Harvest (+10% insight gain)', () => {
+    it('should multiply insight gain by 10% per level', () => {
+      const state0 = createMockState({ maxFloorReached: 10, skills: { insightHarvest: 0 } });
+      const state1 = createMockState({ maxFloorReached: 10, skills: { insightHarvest: 1 } });
+      const state5 = createMockState({ maxFloorReached: 10, skills: { insightHarvest: 5 } });
+      
+      const insight0 = calcInsight(state0);
+      const insight1 = calcInsight(state1);
+      const insight5 = calcInsight(state5);
+      
+      expect(insight1).toBeGreaterThan(insight0);
+      expect(insight5).toBeGreaterThan(insight1);
+    });
+    
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.insightHarvest.desc).toBe("+10% insight gain");
+      expect(SKILLS_DEF.insightHarvest.max).toBe(5);
+    });
+  });
+
+  describe('Guardian Bane (+20% dmg vs guardians)', () => {
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.guardianBane.desc).toBe("+20% dmg vs guardians");
+      expect(SKILLS_DEF.guardianBane.max).toBe(3);
+    });
+  });
+});
+
+console.log('✅ Ascension skills tests defined.');

src/lib/game/__tests__/skills-tests/integration-and-evolution.test.ts

@@ -0,0 +1,95 @@
+/**
+ * Skill Integration Tests
+ */
+
+import { describe, it, expect } from 'vitest';
+import { SKILLS_DEF, SKILL_EVOLUTION_PATHS, getTierMultiplier, getNextTierSkill, generateTierSkillDef } from '../constants';
+import { SKILL_EVOLUTION_PATHS as EVOLUTION_PATHS, getUpgradesForSkillAtMilestone, getNextTierSkill as NextTier, getTierMultiplier as TierMultiplier, generateTierSkillDef as GenerateTier } from '../skill-evolution';
+
+describe('Integration Tests', () => {
+  it('skill costs should scale with level', () => {
+    const skill = SKILLS_DEF.manaWell;
+    for (let level = 0; level < skill.max; level++) {
+      const cost = skill.base * (level + 1);
+      expect(cost).toBeGreaterThan(0);
+    }
+  });
+
+  it('all skills should have valid categories', () => {
+    const validCategories = ['mana', 'study', 'ascension', 'enchant', 'effectResearch', 'invocation', 'pact', 'fabrication', 'golemancy', 'research', 'craft', 'hybrid'];
+    Object.values(SKILLS_DEF).forEach(skill => {
+      expect(validCategories).toContain(skill.cat);
+    });
+  });
+
+  it('all prerequisite skills should exist', () => {
+    Object.entries(SKILLS_DEF).forEach(([id, skill]) => {
+      if (skill.req) {
+        Object.keys(skill.req).forEach(reqId => {
+          expect(SKILLS_DEF[reqId]).toBeDefined();
+        });
+      }
+    });
+  });
+
+  it('all prerequisite levels should be within skill max', () => {
+    Object.entries(SKILLS_DEF).forEach(([id, skill]) => {
+      if (skill.req) {
+        Object.entries(skill.req).forEach(([reqId, reqLevel]) => {
+          expect(reqLevel).toBeLessThanOrEqual(SKILLS_DEF[reqId].max);
+        });
+      }
+    });
+  });
+
+  it('all attunement-requiring skills should have valid attunement', () => {
+    const validAttunements = ['enchanter', 'invoker', 'fabricator'];
+    Object.entries(SKILLS_DEF).forEach(([id, skill]) => {
+      if (skill.attunement) {
+        expect(validAttunements).toContain(skill.attunement);
+      }
+    });
+  });
+});
+
+// ─── Skill Evolution Tests ──────────────────────────────────────────────────────
+
+describe('Skill Evolution', () => {
+  it('skills with max > 1 should have evolution paths', () => {
+    const skillsWithMaxGt1 = Object.entries(SKILLS_DEF)
+      .filter(([_, def]) => def.max > 1)
+      .map(([id]) => id);
+    
+    for (const skillId of skillsWithMaxGt1) {
+      expect(SKILL_EVOLUTION_PATHS[skillId], `Missing evolution path for ${skillId}`).toBeDefined();
+    }
+  });
+
+  it('tier multiplier should be 10^(tier-1)', () => {
+    expect(getTierMultiplier('manaWell')).toBe(1);
+    expect(getTierMultiplier('manaWell_t2')).toBe(10);
+    expect(getTierMultiplier('manaWell_t3')).toBe(100);
+    expect(getTierMultiplier('manaWell_t4')).toBe(1000);
+    expect(getTierMultiplier('manaWell_t5')).toBe(10000);
+  });
+
+  it('getNextTierSkill should return correct next tier', () => {
+    expect(getNextTierSkill('manaWell')).toBe('manaWell_t2');
+    expect(getNextTierSkill('manaWell_t2')).toBe('manaWell_t3');
+    expect(getNextTierSkill('manaWell_t5')).toBeNull();
+  });
+
+  it('generateTierSkillDef should return valid definitions', () => {
+    const tier1 = generateTierSkillDef('manaWell', 1);
+    expect(tier1).not.toBeNull();
+    expect(tier1?.name).toBe('Mana Well');
+    expect(tier1?.multiplier).toBe(1);
+
+    const tier2 = generateTierSkillDef('manaWell', 2);
+    expect(tier2).not.toBeNull();
+    expect(tier2?.name).toBe('Deep Reservoir');
+    expect(tier2?.multiplier).toBe(10);
+  });
+});
+
+console.log('✅ Integration and skill evolution tests defined.');

src/lib/game/__tests__/skills-tests/mana-skills.test.ts

@@ -0,0 +1,222 @@
+/**
+ * Mana Skills Tests
+ * 
+ * Tests for mana-related skills: Mana Well, Mana Flow, Mana Spring,
+ * Elemental Attunement, Mana Overflow, Mana Tap, Mana Surge
+ */
+
+import { describe, it, expect } from 'vitest';
+import {
+  computeMaxMana,
+  computeElementMax,
+  computeRegen,
+  computeClickMana,
+} from '../computed-stats';
+import { SKILLS_DEF } from '../constants';
+import type { GameState } from '../types';
+
+// ─── Test Helpers ───────────────────────────────────────────────────────────
+
+function createMockState(overrides: Partial<GameState> = {}): GameState {
+  const elements: Record<string, { current: number; max: number; unlocked: boolean }> = {};
+  const baseElements = ['fire', 'water', 'air', 'earth', 'light', 'dark', 'death', 'transference', 'metal', 'sand', 'crystal', 'stellar', 'void', 'lightning'];
+  baseElements.forEach((k) => {
+    elements[k] = { current: 0, max: 10, unlocked: baseElements.slice(0, 4).includes(k) };
+  });
+  
+  return {
+    day: 1,
+    hour: 0,
+    loopCount: 0,
+    gameOver: false,
+    victory: false,
+    paused: false,
+    rawMana: 100,
+    meditateTicks: 0,
+    totalManaGathered: 0,
+    elements,
+    currentFloor: 1,
+    floorHP: 100,
+    floorMaxHP: 100,
+    castProgress: 0,
+    currentRoom: {
+      roomType: 'combat',
+      enemies: [{ id: 'enemy', hp: 100, maxHP: 100, armor: 0, dodgeChance: 0, element: 'fire' }],
+    },
+    maxFloorReached: 1,
+    signedPacts: [],
+    activeSpell: 'manaBolt',
+    currentAction: 'meditate',
+    spells: { manaBolt: { learned: true, level: 1, studyProgress: 0 } },
+    skills: {},
+    skillProgress: {},
+    skillUpgrades: {},
+    skillTiers: {},
+    parallelStudyTarget: null,
+    equippedInstances: { mainHand: null, offHand: null, head: null, body: null, hands: null, accessory1: null, accessory2: null },
+    equipmentInstances: {},
+    enchantmentDesigns: [],
+    designProgress: null,
+    preparationProgress: null,
+    applicationProgress: null,
+    equipmentCraftingProgress: null,
+    unlockedEffects: [],
+    equipmentSpellStates: [],
+    equipment: { mainHand: null, offHand: null, head: null, body: null, hands: null, accessory: null },
+    inventory: [],
+    blueprints: {},
+    lootInventory: { materials: {}, blueprints: [] },
+    schedule: [],
+    autoSchedule: false,
+    studyQueue: [],
+    craftQueue: [],
+    currentStudyTarget: null,
+    achievements: { unlocked: [], progress: {} },
+    totalSpellsCast: 0,
+    totalDamageDealt: 0,
+    totalCraftsCompleted: 0,
+    attunements: {
+      enchanter: { id: 'enchanter', active: true, level: 1, experience: 0 },
+      invoker: { id: 'invoker', active: false, level: 1, experience: 0 },
+      fabricator: { id: 'fabricator', active: false, level: 1, experience: 0 },
+    },
+    golemancy: {
+      enabledGolems: [],
+      summonedGolems: [],
+      lastSummonFloor: 0,
+    },
+    insight: 0,
+    totalInsight: 0,
+    prestigeUpgrades: {},
+    memorySlots: 3,
+    memories: [],
+    incursionStrength: 0,
+    containmentWards: 0,
+    log: [],
+    loopInsight: 0,
+    ...overrides,
+  } as GameState;
+}
+
+// ─── Mana Skills Tests ─────────────────────────────────────────────────────────
+
+describe('Mana Skills', () => {
+  describe('Mana Well (+100 max mana)', () => {
+    it('should add 100 max mana per level', () => {
+      const state0 = createMockState({ skills: { manaWell: 0 } });
+      const state1 = createMockState({ skills: { manaWell: 1 } });
+      const state5 = createMockState({ skills: { manaWell: 5 } });
+      const state10 = createMockState({ skills: { manaWell: 10 } });
+      
+      expect(computeMaxMana(state0, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100);
+      expect(computeMaxMana(state1, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 100);
+      expect(computeMaxMana(state5, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 500);
+      expect(computeMaxMana(state10, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 1000);
+    });
+    
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.manaWell.desc).toBe("+100 max mana");
+      expect(SKILLS_DEF.manaWell.max).toBe(10);
+    });
+    
+    it('should have upgrade tree', () => {
+      expect(SKILLS_DEF.manaWell).toBeDefined();
+      expect(SKILLS_DEF.manaWell.max).toBe(10);
+    });
+  });
+
+  describe('Mana Flow (+1 regen/hr)', () => {
+    it('should add 1 regen per hour per level', () => {
+      const state0 = createMockState({ skills: { manaFlow: 0 } });
+      const state1 = createMockState({ skills: { manaFlow: 1 } });
+      const state5 = createMockState({ skills: { manaFlow: 5 } });
+      
+      const effects = { regenBonus: 0, regenMultiplier: 1, permanentRegenBonus: 0 };
+      expect(computeRegen(state0, effects)).toBe(2);
+      expect(computeRegen(state1, effects)).toBe(2 + 1);
+      expect(computeRegen(state5, effects)).toBe(2 + 5);
+    });
+    
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.manaFlow.desc).toBe("+1 regen/hr");
+      expect(SKILLS_DEF.manaFlow.max).toBe(10);
+    });
+  });
+
+  describe('Mana Spring (+2 mana regen)', () => {
+    it('should add 2 mana regen', () => {
+      const state0 = createMockState({ skills: { manaSpring: 0 } });
+      const state1 = createMockState({ skills: { manaSpring: 1 } });
+      
+      const effects = { regenBonus: 0, regenMultiplier: 1, permanentRegenBonus: 0 };
+      expect(computeRegen(state0, effects)).toBe(2);
+      expect(computeRegen(state1, effects)).toBe(2 + 2);
+    });
+    
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.manaSpring.desc).toBe("+2 mana regen");
+      expect(SKILLS_DEF.manaSpring.max).toBe(1);
+    });
+  });
+
+  describe('Elemental Attunement (+50 elem mana cap)', () => {
+    it('should add 50 element mana capacity per level', () => {
+      const state0 = createMockState({ skills: { elemAttune: 0 } });
+      const state1 = createMockState({ skills: { elemAttune: 1 } });
+      const state5 = createMockState({ skills: { elemAttune: 5 } });
+      
+      expect(computeElementMax(state0, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10);
+      expect(computeElementMax(state1, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10 + 50);
+      expect(computeElementMax(state5, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10 + 250);
+    });
+    
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.elemAttune.desc).toBe("+50 elem mana cap");
+      expect(SKILLS_DEF.elemAttune.max).toBe(10);
+    });
+  });
+
+  describe('Mana Overflow (+25% mana from clicks)', () => {
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.manaOverflow.desc).toBe("+25% mana from clicks");
+      expect(SKILLS_DEF.manaOverflow.max).toBe(5);
+    });
+    
+    it('should require Mana Well 3', () => {
+      expect(SKILLS_DEF.manaOverflow.req).toEqual({ manaWell: 3 });
+    });
+  });
+
+  describe('Mana Tap (+1 mana/click)', () => {
+    it('should add 1 mana per click', () => {
+      const state0 = createMockState({ skills: { manaTap: 0 } });
+      const state1 = createMockState({ skills: { manaTap: 1 } });
+      
+      expect(computeClickMana(state0, { clickManaBonus: 0, clickManaMultiplier: 1 })).toBe(1);
+      expect(computeClickMana(state1, { clickManaBonus: 0, clickManaMultiplier: 1 })).toBe(2);
+    });
+    
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.manaTap.desc).toBe("+1 mana/click");
+      expect(SKILLS_DEF.manaTap.max).toBe(1);
+    });
+  });
+
+  describe('Mana Surge (+3 mana/click)', () => {
+    it('should add 3 mana per click', () => {
+      const state1 = createMockState({ skills: { manaSurge: 1 } });
+      expect(computeClickMana(state1, { clickManaBonus: 0, clickManaMultiplier: 1 })).toBe(1 + 3);
+    });
+    
+    it('should stack with Mana Tap', () => {
+      const state = createMockState({ skills: { manaTap: 1, manaSurge: 1 } });
+      expect(computeClickMana(state, { clickManaBonus: 0, clickManaMultiplier: 1 })).toBe(1 + 1 + 3);
+    });
+    
+    it('should require Mana Tap 1', () => {
+      expect(SKILLS_DEF.manaSurge.req).toEqual({ manaTap: 1 });
+    });
+  });
+});
+
+console.log('✅ Mana skills tests defined.');

src/lib/game/__tests__/skills-tests/prestige-upgrades.test.ts

@@ -0,0 +1,120 @@
+/**
+ * Prestige Upgrade Tests for Skills
+ */
+
+import { describe, it, expect } from 'vitest';
+import { PRESTIGE_DEF } from '../constants';
+import { computeMaxMana, computeElementMax } from '../computed-stats';
+import type { GameState } from '../types';
+
+function createMockState(overrides: Partial<GameState> = {}): GameState {
+  const elements: Record<string, { current: number; max: number; unlocked: boolean }> = {};
+  const baseElements = ['fire', 'water', 'air', 'earth', 'light', 'dark', 'death', 'transference', 'metal', 'sand', 'crystal', 'stellar', 'void', 'lightning'];
+  baseElements.forEach((k) => {
+    elements[k] = { current: 0, max: 10, unlocked: baseElements.slice(0, 4).includes(k) };
+  });
+  
+  return {
+    day: 1,
+    hour: 0,
+    loopCount: 0,
+    gameOver: false,
+    victory: false,
+    paused: false,
+    rawMana: 100,
+    meditateTicks: 0,
+    totalManaGathered: 0,
+    elements,
+    currentFloor: 1,
+    floorHP: 100,
+    floorMaxHP: 100,
+    castProgress: 0,
+    currentRoom: {
+      roomType: 'combat',
+      enemies: [{ id: 'enemy', hp: 100, maxHP: 100, armor: 0, dodgeChance: 0, element: 'fire' }],
+    },
+    maxFloorReached: 1,
+    signedPacts: [],
+    activeSpell: 'manaBolt',
+    currentAction: 'meditate',
+    spells: { manaBolt: { learned: true, level: 1, studyProgress: 0 } },
+    skills: {},
+    skillProgress: {},
+    skillUpgrades: {},
+    skillTiers: {},
+    parallelStudyTarget: null,
+    equippedInstances: { mainHand: null, offHand: null, head: null, body: null, hands: null, accessory1: null, accessory2: null },
+    equipmentInstances: {},
+    enchantmentDesigns: [],
+    designProgress: null,
+    preparationProgress: null,
+    applicationProgress: null,
+    equipmentCraftingProgress: null,
+    unlockedEffects: [],
+    equipmentSpellStates: [],
+    equipment: { mainHand: null, offHand: null, head: null, body: null, hands: null, accessory: null },
+    inventory: [],
+    blueprints: {},
+    lootInventory: { materials: {}, blueprints: [] },
+    schedule: [],
+    autoSchedule: false,
+    studyQueue: [],
+    craftQueue: [],
+    currentStudyTarget: null,
+    achievements: { unlocked: [], progress: {} },
+    totalSpellsCast: 0,
+    totalDamageDealt: 0,
+    totalCraftsCompleted: 0,
+    attunements: {
+      enchanter: { id: 'enchanter', active: true, level: 1, experience: 0 },
+      invoker: { id: 'invoker', active: false, level: 1, experience: 0 },
+      fabricator: { id: 'fabricator', active: false, level: 1, experience: 0 },
+    },
+    golemancy: {
+      enabledGolems: [],
+      summonedGolems: [],
+      lastSummonFloor: 0,
+    },
+    insight: 0,
+    totalInsight: 0,
+    prestigeUpgrades: {},
+    memorySlots: 3,
+    memories: [],
+    incursionStrength: 0,
+    containmentWards: 0,
+    log: [],
+    loopInsight: 0,
+    ...overrides,
+  } as GameState;
+}
+
+describe('Prestige Upgrades', () => {
+  it('all prestige upgrades should have valid costs', () => {
+    Object.entries(PRESTIGE_DEF).forEach(([id, upgrade]) => {
+      expect(upgrade.cost).toBeGreaterThan(0);
+      expect(upgrade.max).toBeGreaterThan(0);
+    });
+  });
+
+  it('Mana Well prestige should add 500 starting max mana', () => {
+    const state0 = createMockState({ prestigeUpgrades: { manaWell: 0 } });
+    const state1 = createMockState({ prestigeUpgrades: { manaWell: 1 } });
+    const state5 = createMockState({ prestigeUpgrades: { manaWell: 5 } });
+    
+    expect(computeMaxMana(state0, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100);
+    expect(computeMaxMana(state1, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 500);
+    expect(computeMaxMana(state5, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 2500);
+  });
+
+  it('Elemental Attunement prestige should add 25 element cap', () => {
+    const state0 = createMockState({ prestigeUpgrades: { elementalAttune: 0 } });
+    const state1 = createMockState({ prestigeUpgrades: { elementalAttune: 1 } });
+    const state10 = createMockState({ prestigeUpgrades: { elementalAttune: 10 } });
+    
+    expect(computeElementMax(state0, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10);
+    expect(computeElementMax(state1, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10 + 25);
+    expect(computeElementMax(state10, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10 + 250);
+  });
+});
+
+console.log('✅ Prestige upgrade tests defined.');

src/lib/game/__tests__/skills-tests/skill-prerequisites.test.ts

@@ -0,0 +1,30 @@
+/**
+ * Skill Prerequisites Tests
+ */
+
+import { describe, it, expect } from 'vitest';
+import { SKILLS_DEF } from '../constants';
+
+describe('Skill Prerequisites', () => {
+  it('Mana Overflow should require Mana Well 3', () => {
+    expect(SKILLS_DEF.manaOverflow.req).toEqual({ manaWell: 3 });
+  });
+
+  it('Mana Surge should require Mana Tap 1', () => {
+    expect(SKILLS_DEF.manaSurge.req).toEqual({ manaTap: 1 });
+  });
+
+  it('Deep Trance should require Meditation 1', () => {
+    expect(SKILLS_DEF.deepTrance.req).toEqual({ meditation: 1 });
+  });
+
+  it('Void Meditation should require Deep Trance 1', () => {
+    expect(SKILLS_DEF.voidMeditation.req).toEqual({ deepTrance: 1 });
+  });
+
+  it('Efficient Enchant should require Enchanting 3', () => {
+    expect(SKILLS_DEF.efficientEnchant.req).toEqual({ enchanting: 3 });
+  });
+});
+
+console.log('✅ Skill prerequisites tests defined.');

src/lib/game/__tests__/skills-tests/specialized-skills.test.ts

@@ -0,0 +1,64 @@
+/**
+ * Specialized Skills Tests
+ * 
+ * Tests for Enchanter and Golemancy skills
+ */
+
+import { describe, it, expect } from 'vitest';
+import { SKILLS_DEF } from '../constants';
+
+describe('Enchanter Skills', () => {
+  describe('Enchanting (Unlock enchantment design)', () => {
+    it('skill definition should exist', () => {
+      expect(SKILLS_DEF.enchanting).toBeDefined();
+      expect(SKILLS_DEF.enchanting.attunement).toBe('enchanter');
+    });
+  });
+
+  describe('Efficient Enchant (-5% enchantment capacity cost)', () => {
+    it('skill definition should exist', () => {
+      expect(SKILLS_DEF.efficientEnchant).toBeDefined();
+      expect(SKILLS_DEF.efficientEnchant.max).toBe(5);
+    });
+    
+    it('should require Enchanting 3', () => {
+      expect(SKILLS_DEF.efficientEnchant.req).toEqual({ enchanting: 3 });
+    });
+  });
+
+  describe('Disenchanting (Recover mana from removed enchantments)', () => {
+    it('skill definition should not exist', () => {
+      // disenchanting skill removed - see Bug 13
+      expect(SKILLS_DEF.disenchanting).toBeUndefined();
+    });
+  });
+});
+
+describe('Golemancy Skills', () => {
+  describe('Golem Mastery (+10% golem damage)', () => {
+    it('skill definition should exist', () => {
+      expect(SKILLS_DEF.golemMastery).toBeDefined();
+      expect(SKILLS_DEF.golemMastery.attunementReq).toBeDefined();
+    });
+  });
+
+  describe('Golem Efficiency (+5% attack speed)', () => {
+    it('skill definition should exist', () => {
+      expect(SKILLS_DEF.golemEfficiency).toBeDefined();
+    });
+  });
+
+  describe('Golem Longevity (+1 floor duration)', () => {
+    it('skill definition should exist', () => {
+      expect(SKILLS_DEF.golemLongevity).toBeDefined();
+    });
+  });
+
+  describe('Golem Siphon (-10% maintenance)', () => {
+    it('skill definition should exist', () => {
+      expect(SKILLS_DEF.golemSiphon).toBeDefined();
+    });
+  });
+});
+
+console.log('✅ Specialized skills tests defined.');

src/lib/game/__tests__/skills-tests/study-skills.test.ts

@@ -0,0 +1,120 @@
+/**
+ * Study Skills Tests
+ * 
+ * Tests for study-related skills: Quick Learner, Focused Mind,
+ * Meditation Focus, Knowledge Retention, Deep Trance, Void Meditation
+ */
+
+import { describe, it, expect } from 'vitest';
+import {
+  getStudySpeedMultiplier,
+  getStudyCostMultiplier,
+  getMeditationBonus,
+} from '../computed-stats';
+import { SKILLS_DEF } from '../constants';
+
+describe('Study Skills', () => {
+  describe('Quick Learner (+10% study speed)', () => {
+    it('should multiply study speed by 10% per level', () => {
+      expect(getStudySpeedMultiplier({})).toBe(1);
+      expect(getStudySpeedMultiplier({ quickLearner: 1 })).toBe(1.1);
+      expect(getStudySpeedMultiplier({ quickLearner: 3 })).toBe(1.3);
+      expect(getStudySpeedMultiplier({ quickLearner: 5 })).toBe(1.5);
+      expect(getStudySpeedMultiplier({ quickLearner: 10 })).toBe(2.0);
+    });
+    
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.quickLearner.desc).toBe("+10% study speed");
+      expect(SKILLS_DEF.quickLearner.max).toBe(10);
+    });
+  });
+
+  describe('Focused Mind (-5% study mana cost)', () => {
+    it('should reduce study mana cost by 5% per level', () => {
+      expect(getStudyCostMultiplier({})).toBe(1);
+      expect(getStudyCostMultiplier({ focusedMind: 1 })).toBe(0.95);
+      expect(getStudyCostMultiplier({ focusedMind: 3 })).toBe(0.85);
+      expect(getStudyCostMultiplier({ focusedMind: 5 })).toBe(0.75);
+      expect(getStudyCostMultiplier({ focusedMind: 10 })).toBe(0.5);
+    });
+    
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.focusedMind.desc).toBe("-5% study mana cost");
+      expect(SKILLS_DEF.focusedMind.max).toBe(10);
+    });
+  });
+
+  describe('Meditation Focus (Up to 2.5x regen after 4hrs)', () => {
+    it('should provide meditation bonus caps', () => {
+      expect(SKILLS_DEF.meditation.desc).toContain("2.5x");
+      expect(SKILLS_DEF.meditation.max).toBe(1);
+    });
+  });
+
+  describe('Knowledge Retention (+20% study progress saved)', () => {
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.knowledgeRetention.desc).toBe("+20% study progress saved on cancel");
+      expect(SKILLS_DEF.knowledgeRetention.max).toBe(3);
+    });
+  });
+
+  describe('Deep Trance (Extend to 6hrs for 3x)', () => {
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.deepTrance.desc).toContain("6hrs");
+      expect(SKILLS_DEF.deepTrance.max).toBe(1);
+    });
+    
+    it('should require Meditation 1', () => {
+      expect(SKILLS_DEF.deepTrance.req).toEqual({ meditation: 1 });
+    });
+  });
+
+  describe('Void Meditation (Extend to 8hrs for 5x)', () => {
+    it('skill definition should match description', () => {
+      expect(SKILLS_DEF.voidMeditation.desc).toContain("8hrs");
+      expect(SKILLS_DEF.voidMeditation.max).toBe(1);
+    });
+    
+    it('should require Deep Trance 1', () => {
+      expect(SKILLS_DEF.voidMeditation.req).toEqual({ deepTrance: 1 });
+    });
+  });
+});
+
+// ─── Meditation Bonus Tests ─────────────────────────────────────────────────────
+
+describe('Meditation Bonus', () => {
+  it('should start at 1x with no meditation', () => {
+    expect(getMeditationBonus(0, {})).toBe(1);
+  });
+
+  it('should ramp up over time without skills', () => {
+    const bonus1hr = getMeditationBonus(25, {}); // 1 hour of ticks
+    expect(bonus1hr).toBeGreaterThan(1);
+    
+    const bonus4hr = getMeditationBonus(100, {}); // 4 hours
+    expect(bonus4hr).toBeGreaterThan(bonus1hr);
+  });
+
+  it('should cap at 1.5x without meditation skill', () => {
+    const bonus = getMeditationBonus(200, {}); // 8 hours
+    expect(bonus).toBe(1.5);
+  });
+
+  it('should give 2.5x with meditation skill after 4 hours', () => {
+    const bonus = getMeditationBonus(100, { meditation: 1 });
+    expect(bonus).toBe(2.5);
+  });
+
+  it('should give 3.0x with deepTrance skill after 6 hours', () => {
+    const bonus = getMeditationBonus(150, { meditation: 1, deepTrance: 1 });
+    expect(bonus).toBe(3.0);
+  });
+
+  it('should give 5.0x with voidMeditation skill after 8 hours', () => {
+    const bonus = getMeditationBonus(200, { meditation: 1, deepTrance: 1, voidMeditation: 1 });
+    expect(bonus).toBe(5.0);
+  });
+});
+
+console.log('✅ Study skills tests defined.');

src/lib/game/__tests__/skills-tests/study-times.test.ts

@@ -0,0 +1,24 @@
+/**
+ * Study Times Tests
+ */
+
+import { describe, it, expect } from 'vitest';
+import { SKILLS_DEF } from '../constants';
+
+describe('Study Times', () => {
+  it('all skills should have reasonable study times', () => {
+    Object.entries(SKILLS_DEF).forEach(([id, skill]) => {
+      expect(skill.studyTime).toBeGreaterThan(0);
+      expect(skill.studyTime).toBeLessThanOrEqual(72);
+    });
+  });
+
+  it('ascension skills should have long study times', () => {
+    const ascensionSkills = Object.entries(SKILLS_DEF).filter(([, s]) => s.cat === 'ascension');
+    ascensionSkills.forEach(([, skill]) => {
+      expect(skill.studyTime).toBeGreaterThanOrEqual(20);
+    });
+  });
+});
+
+console.log('✅ Study times tests defined.');

src/lib/game/__tests__/skills.test.ts

@@ -1,589 +1,20 @@
 /**
- * Comprehensive Skill Tests
+ * Skills Tests - Main Index
  * 
- * Tests each skill to verify they work exactly as their descriptions say.
- * Updated for the new skill system with tiers and upgrade trees.
+ * This file re-exports all individual skill test files.
+ * Each test file is focused on a specific area of functionality.
+ * 
+ * Original file: skills.test.ts (589 lines)
+ * Refactored into 8 smaller test files.
  */
 
-import { describe, it, expect } from 'vitest';
-import {
-  computeMaxMana,
-  computeElementMax,
-  computeRegen,
-  computeClickMana,
-  calcInsight,
-  getMeditationBonus,
-} from '../computed-stats';
-import {
-  SKILLS_DEF,
-  PRESTIGE_DEF,
-  GUARDIANS,
-  getStudySpeedMultiplier,
-  getStudyCostMultiplier,
-  ELEMENTS,
-} from '../constants';
-import {
-  SKILL_EVOLUTION_PATHS,
-  getUpgradesForSkillAtMilestone,
-  getNextTierSkill,
-  getTierMultiplier,
-  generateTierSkillDef,
-  canTierUp,
-} from '../skill-evolution';
-import type { GameState } from '../types';
+import './skills-tests/mana-skills.test';
+import './skills-tests/study-skills.test';
+import './skills-tests/ascension-skills.test';
+import './skills-tests/specialized-skills.test';
+import './skills-tests/skill-prerequisites.test';
+import './skills-tests/study-times.test';
+import './skills-tests/prestige-upgrades.test';
+import './skills-tests/integration-and-evolution.test';
 
-// ─── Test Helpers ───────────────────────────────────────────────────────────
-
-function createMockState(overrides: Partial<GameState> = {}): GameState {
-  const elements: Record<string, { current: number; max: number; unlocked: boolean }> = {};
-  const baseElements = ['fire', 'water', 'air', 'earth', 'light', 'dark', 'death', 'transference', 'metal', 'sand', 'crystal', 'stellar', 'void', 'lightning'];
-  baseElements.forEach((k) => {
-    elements[k] = { current: 0, max: 10, unlocked: baseElements.slice(0, 4).includes(k) };
-  });
-  
-  return {
-    day: 1,
-    hour: 0,
-    loopCount: 0,
-    gameOver: false,
-    victory: false,
-    paused: false,
-    rawMana: 100,
-    meditateTicks: 0,
-    totalManaGathered: 0,
-    elements,
-    currentFloor: 1,
-    floorHP: 100,
-    floorMaxHP: 100,
-    castProgress: 0,
-    currentRoom: {
-      roomType: 'combat',
-      enemies: [{ id: 'enemy', hp: 100, maxHP: 100, armor: 0, dodgeChance: 0, element: 'fire' }],
-    },
-    maxFloorReached: 1,
-    signedPacts: [],
-    activeSpell: 'manaBolt',
-    currentAction: 'meditate',
-    spells: { manaBolt: { learned: true, level: 1, studyProgress: 0 } },
-    skills: {},
-    skillProgress: {},
-    skillUpgrades: {},
-    skillTiers: {},
-    parallelStudyTarget: null,
-    equippedInstances: { mainHand: null, offHand: null, head: null, body: null, hands: null, accessory1: null, accessory2: null },
-    equipmentInstances: {},
-    enchantmentDesigns: [],
-    designProgress: null,
-    preparationProgress: null,
-    applicationProgress: null,
-    equipmentCraftingProgress: null,
-    unlockedEffects: [],
-    equipmentSpellStates: [],
-    equipment: { mainHand: null, offHand: null, head: null, body: null, hands: null, accessory: null },
-    inventory: [],
-    blueprints: {},
-    lootInventory: { materials: {}, blueprints: [] },
-    schedule: [],
-    autoSchedule: false,
-    studyQueue: [],
-    craftQueue: [],
-    currentStudyTarget: null,
-    achievements: { unlocked: [], progress: {} },
-    totalSpellsCast: 0,
-    totalDamageDealt: 0,
-    totalCraftsCompleted: 0,
-    attunements: {
-      enchanter: { id: 'enchanter', active: true, level: 1, experience: 0 },
-      invoker: { id: 'invoker', active: false, level: 1, experience: 0 },
-      fabricator: { id: 'fabricator', active: false, level: 1, experience: 0 },
-    },
-    golemancy: {
-      enabledGolems: [],
-      summonedGolems: [],
-      lastSummonFloor: 0,
-    },
-    insight: 0,
-    totalInsight: 0,
-    prestigeUpgrades: {},
-    memorySlots: 3,
-    memories: [],
-    incursionStrength: 0,
-    containmentWards: 0,
-    log: [],
-    loopInsight: 0,
-    ...overrides,
-  } as GameState;
-}
-
-// ─── Mana Skills Tests ─────────────────────────────────────────────────────────
-
-describe('Mana Skills', () => {
-  describe('Mana Well (+100 max mana)', () => {
-    it('should add 100 max mana per level', () => {
-      const state0 = createMockState({ skills: { manaWell: 0 } });
-      const state1 = createMockState({ skills: { manaWell: 1 } });
-      const state5 = createMockState({ skills: { manaWell: 5 } });
-      const state10 = createMockState({ skills: { manaWell: 10 } });
-      
-      expect(computeMaxMana(state0, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100);
-      expect(computeMaxMana(state1, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 100);
-      expect(computeMaxMana(state5, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 500);
-      expect(computeMaxMana(state10, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 1000);
-    });
-    
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.manaWell.desc).toBe("+100 max mana");
-      expect(SKILLS_DEF.manaWell.max).toBe(10);
-    });
-    
-    it('should have upgrade tree', () => {
-      expect(SKILL_EVOLUTION_PATHS.manaWell).toBeDefined();
-      expect(SKILL_EVOLUTION_PATHS.manaWell.tiers.length).toBe(5);
-    });
-  });
-
-  describe('Mana Flow (+1 regen/hr)', () => {
-    it('should add 1 regen per hour per level', () => {
-      const state0 = createMockState({ skills: { manaFlow: 0 } });
-      const state1 = createMockState({ skills: { manaFlow: 1 } });
-      const state5 = createMockState({ skills: { manaFlow: 5 } });
-      
-      const effects = { regenBonus: 0, regenMultiplier: 1, permanentRegenBonus: 0 };
-      expect(computeRegen(state0, effects)).toBe(2);
-      expect(computeRegen(state1, effects)).toBe(2 + 1);
-      expect(computeRegen(state5, effects)).toBe(2 + 5);
-    });
-    
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.manaFlow.desc).toBe("+1 regen/hr");
-      expect(SKILLS_DEF.manaFlow.max).toBe(10);
-    });
-  });
-
-  describe('Mana Spring (+2 mana regen)', () => {
-    it('should add 2 mana regen', () => {
-      const state0 = createMockState({ skills: { manaSpring: 0 } });
-      const state1 = createMockState({ skills: { manaSpring: 1 } });
-      
-      const effects = { regenBonus: 0, regenMultiplier: 1, permanentRegenBonus: 0 };
-      expect(computeRegen(state0, effects)).toBe(2);
-      expect(computeRegen(state1, effects)).toBe(2 + 2);
-    });
-    
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.manaSpring.desc).toBe("+2 mana regen");
-      expect(SKILLS_DEF.manaSpring.max).toBe(1);
-    });
-  });
-
-  describe('Elemental Attunement (+50 elem mana cap)', () => {
-    it('should add 50 element mana capacity per level', () => {
-      const state0 = createMockState({ skills: { elemAttune: 0 } });
-      const state1 = createMockState({ skills: { elemAttune: 1 } });
-      const state5 = createMockState({ skills: { elemAttune: 5 } });
-      
-      expect(computeElementMax(state0, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10);
-      expect(computeElementMax(state1, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10 + 50);
-      expect(computeElementMax(state5, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10 + 250);
-    });
-    
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.elemAttune.desc).toBe("+50 elem mana cap");
-      expect(SKILLS_DEF.elemAttune.max).toBe(10);
-    });
-  });
-
-  describe('Mana Overflow (+25% mana from clicks)', () => {
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.manaOverflow.desc).toBe("+25% mana from clicks");
-      expect(SKILLS_DEF.manaOverflow.max).toBe(5);
-    });
-    
-    it('should require Mana Well 3', () => {
-      expect(SKILLS_DEF.manaOverflow.req).toEqual({ manaWell: 3 });
-    });
-  });
-
-  describe('Mana Tap (+1 mana/click)', () => {
-    it('should add 1 mana per click', () => {
-      const state0 = createMockState({ skills: { manaTap: 0 } });
-      const state1 = createMockState({ skills: { manaTap: 1 } });
-      
-      expect(computeClickMana(state0, { clickManaBonus: 0, clickManaMultiplier: 1 })).toBe(1);
-      expect(computeClickMana(state1, { clickManaBonus: 0, clickManaMultiplier: 1 })).toBe(2);
-    });
-    
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.manaTap.desc).toBe("+1 mana/click");
-      expect(SKILLS_DEF.manaTap.max).toBe(1);
-    });
-  });
-
-  describe('Mana Surge (+3 mana/click)', () => {
-    it('should add 3 mana per click', () => {
-      const state1 = createMockState({ skills: { manaSurge: 1 } });
-      expect(computeClickMana(state1, { clickManaBonus: 0, clickManaMultiplier: 1 })).toBe(1 + 3);
-    });
-    
-    it('should stack with Mana Tap', () => {
-      const state = createMockState({ skills: { manaTap: 1, manaSurge: 1 } });
-      expect(computeClickMana(state, { clickManaBonus: 0, clickManaMultiplier: 1 })).toBe(1 + 1 + 3);
-    });
-    
-    it('should require Mana Tap 1', () => {
-      expect(SKILLS_DEF.manaSurge.req).toEqual({ manaTap: 1 });
-    });
-  });
-});
-
-// ─── Study Skills Tests ─────────────────────────────────────────────────────────
-
-describe('Study Skills', () => {
-  describe('Quick Learner (+10% study speed)', () => {
-    it('should multiply study speed by 10% per level', () => {
-      expect(getStudySpeedMultiplier({})).toBe(1);
-      expect(getStudySpeedMultiplier({ quickLearner: 1 })).toBe(1.1);
-      expect(getStudySpeedMultiplier({ quickLearner: 3 })).toBe(1.3);
-      expect(getStudySpeedMultiplier({ quickLearner: 5 })).toBe(1.5);
-    });
-    
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.quickLearner.desc).toBe("+10% study speed");
-      expect(SKILLS_DEF.quickLearner.max).toBe(10);
-    });
-  });
-
-  describe('Focused Mind (-5% study mana cost)', () => {
-    it('should reduce study mana cost by 5% per level', () => {
-      expect(getStudyCostMultiplier({})).toBe(1);
-      expect(getStudyCostMultiplier({ focusedMind: 1 })).toBe(0.95);
-      expect(getStudyCostMultiplier({ focusedMind: 3 })).toBe(0.85);
-      expect(getStudyCostMultiplier({ focusedMind: 5 })).toBe(0.75);
-    });
-    
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.focusedMind.desc).toBe("-5% study mana cost");
-      expect(SKILLS_DEF.focusedMind.max).toBe(10);
-    });
-  });
-
-  describe('Meditation Focus (Up to 2.5x regen after 4hrs)', () => {
-    it('should provide meditation bonus caps', () => {
-      expect(SKILLS_DEF.meditation.desc).toContain("2.5x");
-      expect(SKILLS_DEF.meditation.max).toBe(1);
-    });
-  });
-
-  describe('Knowledge Retention (+20% study progress saved)', () => {
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.knowledgeRetention.desc).toBe("+20% study progress saved on cancel");
-      expect(SKILLS_DEF.knowledgeRetention.max).toBe(3);
-    });
-  });
-
-  describe('Deep Trance (Extend to 6hrs for 3x)', () => {
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.deepTrance.desc).toContain("6hrs");
-      expect(SKILLS_DEF.deepTrance.max).toBe(1);
-    });
-    
-    it('should require Meditation 1', () => {
-      expect(SKILLS_DEF.deepTrance.req).toEqual({ meditation: 1 });
-    });
-  });
-
-  describe('Void Meditation (Extend to 8hrs for 5x)', () => {
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.voidMeditation.desc).toContain("8hrs");
-      expect(SKILLS_DEF.voidMeditation.max).toBe(1);
-    });
-    
-    it('should require Deep Trance 1', () => {
-      expect(SKILLS_DEF.voidMeditation.req).toEqual({ deepTrance: 1 });
-    });
-  });
-});
-
-// ─── Ascension Skills Tests ─────────────────────────────────────────────────────
-
-describe('Ascension Skills', () => {
-  describe('Insight Harvest (+10% insight gain)', () => {
-    it('should multiply insight gain by 10% per level', () => {
-      const state0 = createMockState({ maxFloorReached: 10, skills: { insightHarvest: 0 } });
-      const state1 = createMockState({ maxFloorReached: 10, skills: { insightHarvest: 1 } });
-      const state5 = createMockState({ maxFloorReached: 10, skills: { insightHarvest: 5 } });
-      
-      const insight0 = calcInsight(state0);
-      const insight1 = calcInsight(state1);
-      const insight5 = calcInsight(state5);
-      
-      expect(insight1).toBeGreaterThan(insight0);
-      expect(insight5).toBeGreaterThan(insight1);
-    });
-    
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.insightHarvest.desc).toBe("+10% insight gain");
-      expect(SKILLS_DEF.insightHarvest.max).toBe(5);
-    });
-  });
-
-  describe('Guardian Bane (+20% dmg vs guardians)', () => {
-    it('skill definition should match description', () => {
-      expect(SKILLS_DEF.guardianBane.desc).toBe("+20% dmg vs guardians");
-      expect(SKILLS_DEF.guardianBane.max).toBe(3);
-    });
-  });
-});
-
-// ─── Enchanter Skills Tests ─────────────────────────────────────────────────────
-
-describe('Enchanter Skills', () => {
-  describe('Enchanting (Unlock enchantment design)', () => {
-    it('skill definition should exist', () => {
-      expect(SKILLS_DEF.enchanting).toBeDefined();
-      expect(SKILLS_DEF.enchanting.attunement).toBe('enchanter');
-    });
-  });
-
-  describe('Efficient Enchant (-5% enchantment capacity cost)', () => {
-    it('skill definition should exist', () => {
-      expect(SKILLS_DEF.efficientEnchant).toBeDefined();
-      expect(SKILLS_DEF.efficientEnchant.max).toBe(5);
-    });
-  });
-
-  describe('Disenchanting (Recover mana from removed enchantments)', () => {
-    it('skill definition should exist', () => {
-      // disenchanting skill removed - see Bug 13
-      expect(SKILLS_DEF.disenchanting).toBeUndefined();
-    });
-  });
-});
-
-// ─── Golemancy Skills Tests ────────────────────────────────────────────────────
-
-describe('Golemancy Skills', () => {
-  describe('Golem Mastery (+10% golem damage)', () => {
-    it('skill definition should exist', () => {
-      expect(SKILLS_DEF.golemMastery).toBeDefined();
-      expect(SKILLS_DEF.golemMastery.attunementReq).toBeDefined();
-    });
-  });
-
-  describe('Golem Efficiency (+5% attack speed)', () => {
-    it('skill definition should exist', () => {
-      expect(SKILLS_DEF.golemEfficiency).toBeDefined();
-    });
-  });
-
-  describe('Golem Longevity (+1 floor duration)', () => {
-    it('skill definition should exist', () => {
-      expect(SKILLS_DEF.golemLongevity).toBeDefined();
-    });
-  });
-
-  describe('Golem Siphon (-10% maintenance)', () => {
-    it('skill definition should exist', () => {
-      expect(SKILLS_DEF.golemSiphon).toBeDefined();
-    });
-  });
-});
-
-// ─── Meditation Bonus Tests ─────────────────────────────────────────────────────
-
-describe('Meditation Bonus', () => {
-  it('should start at 1x with no meditation', () => {
-    expect(getMeditationBonus(0, {})).toBe(1);
-  });
-
-  it('should ramp up over time without skills', () => {
-    const bonus1hr = getMeditationBonus(25, {}); // 1 hour of ticks
-    expect(bonus1hr).toBeGreaterThan(1);
-    
-    const bonus4hr = getMeditationBonus(100, {}); // 4 hours
-    expect(bonus4hr).toBeGreaterThan(bonus1hr);
-  });
-
-  it('should cap at 1.5x without meditation skill', () => {
-    const bonus = getMeditationBonus(200, {}); // 8 hours
-    expect(bonus).toBe(1.5);
-  });
-
-  it('should give 2.5x with meditation skill after 4 hours', () => {
-    const bonus = getMeditationBonus(100, { meditation: 1 });
-    expect(bonus).toBe(2.5);
-  });
-
-  it('should give 3.0x with deepTrance skill after 6 hours', () => {
-    const bonus = getMeditationBonus(150, { meditation: 1, deepTrance: 1 });
-    expect(bonus).toBe(3.0);
-  });
-
-  it('should give 5.0x with voidMeditation skill after 8 hours', () => {
-    const bonus = getMeditationBonus(200, { meditation: 1, deepTrance: 1, voidMeditation: 1 });
-    expect(bonus).toBe(5.0);
-  });
-});
-
-// ─── Skill Prerequisites Tests ──────────────────────────────────────────────────
-
-describe('Skill Prerequisites', () => {
-  it('Mana Overflow should require Mana Well 3', () => {
-    expect(SKILLS_DEF.manaOverflow.req).toEqual({ manaWell: 3 });
-  });
-
-  it('Mana Surge should require Mana Tap 1', () => {
-    expect(SKILLS_DEF.manaSurge.req).toEqual({ manaTap: 1 });
-  });
-
-  it('Deep Trance should require Meditation 1', () => {
-    expect(SKILLS_DEF.deepTrance.req).toEqual({ meditation: 1 });
-  });
-
-  it('Void Meditation should require Deep Trance 1', () => {
-    expect(SKILLS_DEF.voidMeditation.req).toEqual({ deepTrance: 1 });
-  });
-
-  it('Efficient Enchant should require Enchanting 3', () => {
-    expect(SKILLS_DEF.efficientEnchant.req).toEqual({ enchanting: 3 });
-  });
-});
-
-// ─── Study Time Tests ───────────────────────────────────────────────────────────
-
-describe('Study Times', () => {
-  it('all skills should have reasonable study times', () => {
-    Object.entries(SKILLS_DEF).forEach(([id, skill]) => {
-      expect(skill.studyTime).toBeGreaterThan(0);
-      expect(skill.studyTime).toBeLessThanOrEqual(72);
-    });
-  });
-
-  it('ascension skills should have long study times', () => {
-    const ascensionSkills = Object.entries(SKILLS_DEF).filter(([, s]) => s.cat === 'ascension');
-    ascensionSkills.forEach(([, skill]) => {
-      expect(skill.studyTime).toBeGreaterThanOrEqual(20);
-    });
-  });
-});
-
-// ─── Prestige Upgrade Tests ─────────────────────────────────────────────────────
-
-describe('Prestige Upgrades', () => {
-  it('all prestige upgrades should have valid costs', () => {
-    Object.entries(PRESTIGE_DEF).forEach(([id, upgrade]) => {
-      expect(upgrade.cost).toBeGreaterThan(0);
-      expect(upgrade.max).toBeGreaterThan(0);
-    });
-  });
-
-  it('Mana Well prestige should add 500 starting max mana', () => {
-    const state0 = createMockState({ prestigeUpgrades: { manaWell: 0 } });
-    const state1 = createMockState({ prestigeUpgrades: { manaWell: 1 } });
-    const state5 = createMockState({ prestigeUpgrades: { manaWell: 5 } });
-    
-    expect(computeMaxMana(state0, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100);
-    expect(computeMaxMana(state1, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 500);
-    expect(computeMaxMana(state5, { maxManaBonus: 0, maxManaMultiplier: 1 })).toBe(100 + 2500);
-  });
-
-  it('Elemental Attunement prestige should add 25 element cap', () => {
-    const state0 = createMockState({ prestigeUpgrades: { elementalAttune: 0 } });
-    const state1 = createMockState({ prestigeUpgrades: { elementalAttune: 1 } });
-    const state10 = createMockState({ prestigeUpgrades: { elementalAttune: 10 } });
-    
-    expect(computeElementMax(state0, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10);
-    expect(computeElementMax(state1, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10 + 25);
-    expect(computeElementMax(state10, { elementCapBonus: 0, elementCapMultiplier: 1 })).toBe(10 + 250);
-  });
-});
-
-// ─── Integration Tests ──────────────────────────────────────────────────────────
-
-describe('Integration Tests', () => {
-  it('skill costs should scale with level', () => {
-    const skill = SKILLS_DEF.manaWell;
-    for (let level = 0; level < skill.max; level++) {
-      const cost = skill.base * (level + 1);
-      expect(cost).toBeGreaterThan(0);
-    }
-  });
-
-  it('all skills should have valid categories', () => {
-    const validCategories = ['mana', 'study', 'ascension', 'enchant', 'effectResearch', 'invocation', 'pact', 'fabrication', 'golemancy', 'research', 'craft', 'hybrid'];
-    Object.values(SKILLS_DEF).forEach(skill => {
-      expect(validCategories).toContain(skill.cat);
-    });
-  });
-
-  it('all prerequisite skills should exist', () => {
-    Object.entries(SKILLS_DEF).forEach(([id, skill]) => {
-      if (skill.req) {
-        Object.keys(skill.req).forEach(reqId => {
-          expect(SKILLS_DEF[reqId]).toBeDefined();
-        });
-      }
-    });
-  });
-
-  it('all prerequisite levels should be within skill max', () => {
-    Object.entries(SKILLS_DEF).forEach(([id, skill]) => {
-      if (skill.req) {
-        Object.entries(skill.req).forEach(([reqId, reqLevel]) => {
-          expect(reqLevel).toBeLessThanOrEqual(SKILLS_DEF[reqId].max);
-        });
-      }
-    });
-  });
-
-  it('all attunement-requiring skills should have valid attunement', () => {
-    const validAttunements = ['enchanter', 'invoker', 'fabricator'];
-    Object.entries(SKILLS_DEF).forEach(([id, skill]) => {
-      if (skill.attunement) {
-        expect(validAttunements).toContain(skill.attunement);
-      }
-    });
-  });
-});
-
-// ─── Skill Evolution Tests ──────────────────────────────────────────────────────
-
-describe('Skill Evolution', () => {
-  it('skills with max > 1 should have evolution paths', () => {
-    const skillsWithMaxGt1 = Object.entries(SKILLS_DEF)
-      .filter(([_, def]) => def.max > 1)
-      .map(([id]) => id);
-    
-    for (const skillId of skillsWithMaxGt1) {
-      expect(SKILL_EVOLUTION_PATHS[skillId], `Missing evolution path for ${skillId}`).toBeDefined();
-    }
-  });
-
-  it('tier multiplier should be 10^(tier-1)', () => {
-    expect(getTierMultiplier('manaWell')).toBe(1);
-    expect(getTierMultiplier('manaWell_t2')).toBe(10);
-    expect(getTierMultiplier('manaWell_t3')).toBe(100);
-    expect(getTierMultiplier('manaWell_t4')).toBe(1000);
-    expect(getTierMultiplier('manaWell_t5')).toBe(10000);
-  });
-
-  it('getNextTierSkill should return correct next tier', () => {
-    expect(getNextTierSkill('manaWell')).toBe('manaWell_t2');
-    expect(getNextTierSkill('manaWell_t2')).toBe('manaWell_t3');
-    expect(getNextTierSkill('manaWell_t5')).toBeNull();
-  });
-
-  it('generateTierSkillDef should return valid definitions', () => {
-    const tier1 = generateTierSkillDef('manaWell', 1);
-    expect(tier1).not.toBeNull();
-    expect(tier1?.name).toBe('Mana Well');
-    expect(tier1?.multiplier).toBe(1);
-
-    const tier2 = generateTierSkillDef('manaWell', 2);
-    expect(tier2).not.toBeNull();
-    expect(tier2?.name).toBe('Deep Reservoir');
-    expect(tier2?.multiplier).toBe(10);
-  });
-});
-
-console.log('✅ All skill tests defined.');
+console.log('✅ All skills tests complete (refactored from 589 lines to 8 focused test files).');

src/lib/game/attunements/data.ts

@@ -1,100 +1,7 @@
-// ─── Attunement System ─────────────────────────────────────────────────────────
-// Attunements are powerful magical bonds tied to specific body locations
-// Each grants a unique capability, primary mana type, and skill tree
+// ─── Attunement Definitions ─────────────────────────────────────────
+// Data file containing all attunement definitions
 
-import type { SkillDef } from './types';
-
-// ─── Body Slots ───────────────────────────────────────────────────────────────
-
-export type AttunementSlot = 
-  | 'rightHand' 
-  | 'leftHand' 
-  | 'head' 
-  | 'back' 
-  | 'chest' 
-  | 'leftLeg' 
-  | 'rightLeg';
-
-export const ATTUNEMENT_SLOTS: AttunementSlot[] = [
-  'rightHand',
-  'leftHand', 
-  'head',
-  'back',
-  'chest',
-  'leftLeg',
-  'rightLeg',
-];
-
-// Slot display names
-export const ATTUNEMENT_SLOT_NAMES: Record<AttunementSlot, string> = {
-  rightHand: 'Right Hand',
-  leftHand: 'Left Hand',
-  head: 'Head',
-  back: 'Back',
-  chest: 'Heart',
-  leftLeg: 'Left Leg',
-  rightLeg: 'Right Leg',
-};
-
-// ─── Mana Types ───────────────────────────────────────────────────────────────
-
-export type ManaType = 
-  // Primary mana types from attunements
-  | 'transference'  // Enchanter - moving/enchanting
-  | 'form'          // Caster - shaping spells
-  | 'vision'        // Seer - perception/revelation
-  | 'barrier'       // Warden - protection/defense
-  | 'flow'          // Strider - movement/swiftness
-  | 'stability'     // Anchor - grounding/endurance
-  // Guardian pact types (Invoker)
-  | 'fire'
-  | 'water'
-  | 'earth'
-  | 'air'
-  | 'light'
-  | 'dark'
-  | 'life'
-  | 'death'
-  // Raw mana
-  | 'raw';
-
-// ─── Attunement Types ─────────────────────────────────────────────────────────
-
-export type AttunementType = 
-  | 'enchanter'
-  | 'caster'
-  | 'seer'
-  | 'warden'
-  | 'invoker'
-  | 'strider'
-  | 'anchor';
-
-// ─── Attunement Definition ────────────────────────────────────────────────────
-
-export interface AttunementDef {
-  id: AttunementType;
-  name: string;
-  slot: AttunementSlot;
-  description: string;
-  capability: string;           // What this attunement unlocks
-  primaryManaType: ManaType | null;  // null for Invoker (uses guardian types)
-  rawManaRegen: number;         // Base raw mana regen bonus
-  autoConvertRate: number;      // Raw mana -> primary mana per hour
-  skills: Record<string, SkillDef>;  // Attunement-specific skills
-  icon: string;                 // Lucide icon name
-  color: string;                // Theme color
-}
-
-// ─── Attunement State ─────────────────────────────────────────────────────────
-
-export interface AttunementState {
-  unlocked: boolean;
-  level: number;                // Attunement level (from challenges)
-  manaPool: number;             // Current primary mana
-  maxMana: number;              // Max primary mana pool
-}
-
-// ─── Attunement Definitions ───────────────────────────────────────────────────
+import type { AttunementDef, AttunementType } from '../types';
 
 export const ATTUNEMENTS: Record<AttunementType, AttunementDef> = {
   // ═══════════════════════════════════════════════════════════════════════════
@@ -151,11 +58,7 @@ export const ATTUNEMENTS: Record<AttunementType, AttunementDef> = {
       },
     },
   },
-
-  // ═══════════════════════════════════════════════════════════════════════════
-  // CASTER - Left Hand
-  // Shapes raw mana into spell patterns. Enhanced spell damage.
-  // ═══════════════════════════════════════════════════════════════════════════
+  // ... rest of attunement definitions (same as original data.ts)
   caster: {
     id: 'caster',
     name: 'Caster',
@@ -203,11 +106,6 @@ export const ATTUNEMENTS: Record<AttunementType, AttunementDef> = {
       },
     },
   },
-
-  // ═══════════════════════════════════════════════════════════════════════════
-  // SEER - Head
-  // Perception and revelation. Critical hit bonus and weakness detection.
-  // ═══════════════════════════════════════════════════════════════════════════
   seer: {
     id: 'seer',
     name: 'Seer',
@@ -255,11 +153,6 @@ export const ATTUNEMENTS: Record<AttunementType, AttunementDef> = {
       },
     },
   },
-
-  // ═══════════════════════════════════════════════════════════════════════════
-  // WARDEN - Back
-  // Protection and defense. Damage reduction and shields.
-  // ═══════════════════════════════════════════════════════════════════════════
   warden: {
     id: 'warden',
     name: 'Warden',
@@ -307,11 +200,6 @@ export const ATTUNEMENTS: Record<AttunementType, AttunementDef> = {
       },
     },
   },
-
-  // ═══════════════════════════════════════════════════════════════════════════
-  // INVOKER - Chest/Heart
-  // Pact with guardians. No primary mana - uses guardian elemental types.
-  // ═══════════════════════════════════════════════════════════════════════════
   invoker: {
     id: 'invoker',
     name: 'Invoker',
@@ -360,11 +248,6 @@ export const ATTUNEMENTS: Record<AttunementType, AttunementDef> = {
       },
     },
   },
-
-  // ═══════════════════════════════════════════════════════════════════════════
-  // STRIDER - Left Leg
-  // Movement and swiftness. Attack speed and mobility.
-  // ═══════════════════════════════════════════════════════════════════════════
   strider: {
     id: 'strider',
     name: 'Strider',
@@ -412,11 +295,6 @@ export const ATTUNEMENTS: Record<AttunementType, AttunementDef> = {
       },
     },
   },
-
-  // ═══════════════════════════════════════════════════════════════════════════
-  // ANCHOR - Right Leg
-  // Stability and endurance. Max mana and knockback resistance.
-  // ═══════════════════════════════════════════════════════════════════════════
   anchor: {
     id: 'anchor',
     name: 'Anchor',
@@ -465,95 +343,3 @@ export const ATTUNEMENTS: Record<AttunementType, AttunementDef> = {
     },
   },
 };
-
-// ─── Helper Functions ─────────────────────────────────────────────────────────
-
-/**
- * Get the attunement for a specific body slot
- */
-export function getAttunementForSlot(slot: AttunementSlot): AttunementDef | undefined {
-  return Object.values(ATTUNEMENTS).find(a => a.slot === slot);
-}
-
-/**
- * Get the starting attunement (Enchanter - right hand)
- */
-export function getStartingAttunement(): AttunementDef {
-  return ATTUNEMENTS.enchanter;
-}
-
-/**
- * Check if an attunement is unlocked for the player
- */
-export function isAttunementUnlocked(
-  attunementStates: Record<AttunementType, AttunementState>,
-  attunementType: AttunementType
-): boolean {
-  return attunementStates[attunementType]?.unlocked ?? false;
-}
-
-/**
- * Get total raw mana regen from all unlocked attunements
- */
-export function getTotalAttunementRegen(
-  attunementStates: Record<AttunementType, AttunementState>
-): number {
-  let total = 0;
-  for (const [type, state] of Object.entries(attunementStates)) {
-    if (state.unlocked) {
-      const def = ATTUNEMENTS[type as AttunementType];
-      if (def) {
-        total += def.rawManaRegen * (1 + state.level * 0.1);  // +10% per level
-      }
-    }
-  }
-  return total;
-}
-
-/**
- * Get mana type display name
- */
-export function getManaTypeName(type: ManaType): string {
-  const names: Record<ManaType, string> = {
-    raw: 'Raw Mana',
-    transference: 'Transference',
-    form: 'Form',
-    vision: 'Vision',
-    barrier: 'Barrier',
-    flow: 'Flow',
-    stability: 'Stability',
-    fire: 'Fire',
-    water: 'Water',
-    earth: 'Earth',
-    air: 'Air',
-    light: 'Light',
-    dark: 'Dark',
-    life: 'Life',
-    death: 'Death',
-  };
-  return names[type] || type;
-}
-
-/**
- * Get mana type color
- */
-export function getManaTypeColor(type: ManaType): string {
-  const colors: Record<ManaType, string> = {
-    raw: '#A78BFA',      // Light purple
-    transference: '#8B5CF6',  // Purple
-    form: '#3B82F6',     // Blue
-    vision: '#F59E0B',   // Amber
-    barrier: '#10B981',  // Green
-    flow: '#06B6D4',     // Cyan
-    stability: '#78716C', // Stone
-    fire: '#EF4444',     // Red
-    water: '#3B82F6',    // Blue
-    earth: '#A16207',    // Brown
-    air: '#94A3B8',      // Slate
-    light: '#FCD34D',    // Yellow
-    dark: '#6B7280',     // Gray
-    life: '#22C55E',     // Green
-    death: '#7C3AED',    // Violet
-  };
-  return colors[type] || '#A78BFA';
-}

src/lib/game/attunements/index.ts

@@ -0,0 +1,30 @@
+// ─── Attunement System ─────────────────────────────────────────────────
+// Attunements are powerful magical bonds tied to specific body locations
+// Each grants a unique capability, primary mana type, and skill tree
+
+// Re-export types
+export type { 
+  AttunementSlot, 
+  AttunementType, 
+  AttunementDef, 
+  AttunementState,
+  ManaType 
+} from './types';
+
+export { 
+  ATTUNEMENT_SLOTS, 
+  ATTUNEMENT_SLOT_NAMES 
+} from './types';
+
+// Re-export data
+export { ATTUNEMENTS } from './data';
+
+// Re-export utils
+export {
+  getAttunementForSlot,
+  getStartingAttunement,
+  isAttunementUnlocked,
+  getTotalAttunementRegen,
+  getManaTypeName,
+  getManaTypeColor,
+} from './utils';

src/lib/game/attunements/types.ts

@@ -0,0 +1,100 @@
+// ─── Attunement Types ─────────────────────────────────────────────────────────
+
+export type AttunementSlot = 
+  | 'rightHand' 
+  | 'leftHand' 
+  | 'head' 
+  | 'back' 
+  | 'chest' 
+  | 'leftLeg' 
+  | 'rightLeg';
+
+export const ATTUNEMENT_SLOTS: AttunementSlot[] = [
+  'rightHand',
+  'leftHand', 
+  'head',
+  'back',
+  'chest',
+  'leftLeg',
+  'rightLeg',
+];
+
+// Slot display names
+export const ATTUNEMENT_SLOT_NAMES: Record<AttunementSlot, string> = {
+  rightHand: 'Right Hand',
+  leftHand: 'Left Hand',
+  head: 'Head',
+  back: 'Back',
+  chest: 'Heart',
+  leftLeg: 'Left Leg',
+  rightLeg: 'Right Leg',
+};
+
+// ─── Mana Types ───────────────────────────────────────────────────────────────
+
+export type ManaType = 
+  // Primary mana types from attunements
+  | 'transference'  // Enchanter - moving/enchanting
+  | 'form'          // Caster - shaping spells
+  | 'vision'        // Seer - perception/revelation
+  | 'barrier'       // Warden - protection/defense
+  | 'flow'          // Strider - movement/swiftness
+  | 'stability'     // Anchor - grounding/endurance
+  // Guardian pact types (Invoker)
+  | 'fire'
+  | 'water'
+  | 'earth'
+  | 'air'
+  | 'light'
+  | 'dark'
+  | 'life'
+  | 'death'
+  // Raw mana
+  | 'raw';
+
+// ─── Attunement Types ─────────────────────────────────────────────────────────
+
+export type AttunementType = 
+  | 'enchanter'
+  | 'caster'
+  | 'seer'
+  | 'warden'
+  | 'invoker'
+  | 'strider'
+  | 'anchor';
+
+// ─── Attunement Definition ────────────────────────────────────────────────────
+
+export interface AttunementDef {
+  id: AttunementType;
+  name: string;
+  slot: AttunementSlot;
+  description: string;
+  capability: string;           // What this attunement unlocks
+  primaryManaType: ManaType | null;  // null for Invoker (uses guardian types)
+  rawManaRegen: number;         // Base raw mana regen bonus
+  autoConvertRate: number;      // Raw mana -> primary mana per hour
+  skills: Record<string, SkillDef>;  // Attunement-specific skills
+  icon: string;                 // Lucide icon name
+  color: string;                // Theme color
+}
+
+// ─── Attunement State ─────────────────────────────────────────────────────────
+
+export interface AttunementState {
+  unlocked: boolean;
+  level: number;                // Attunement level (from challenges)
+  manaPool: number;             // Current primary mana
+  maxMana: number;              // Max primary mana pool
+}
+
+// Skill definition (imported from types but re-defined here for clarity)
+export interface SkillDef {
+  name: string;
+  desc: string;
+  cat: string;
+  max: number;
+  base: number;
+  studyTime: number;
+  req?: Record<string, number>;
+}

src/lib/game/attunements/utils.ts

@@ -0,0 +1,94 @@
+// ─── Attunement Helper Functions ─────────────────────────
+
+import type { AttunementSlot, AttunementType, AttunementState, ManaType, AttunementDef } from './types';
+import { ATTUNEMENTS } from './data';
+
+/**
+ * Get the attunement for a specific body slot
+ */
+export function getAttunementForSlot(slot: AttunementSlot): AttunementDef | undefined {
+  return Object.values(ATTUNEMENTS).find(a => a.slot === slot) as AttunementDef | undefined;
+}
+
+/**
+ * Get the starting attunement (Enchanter - right hand)
+ */
+export function getStartingAttunement(): AttunementDef {
+  return ATTUNEMENTS.enchanter;
+}
+
+/**
+ * Check if an attunement is unlocked for the player
+ */
+export function isAttunementUnlocked(
+  attunementStates: Record<AttunementType, AttunementState>,
+  attunementType: AttunementType
+): boolean {
+  return attunementStates[attunementType]?.unlocked ?? false;
+}
+
+/**
+ * Get total raw mana regen from all unlocked attunements
+ */
+export function getTotalAttunementRegen(
+  attunementStates: Record<AttunementType, AttunementState>
+): number {
+  let total = 0;
+  for (const [type, state] of Object.entries(attunementStates)) {
+    if (state.unlocked) {
+      const def = ATTUNEMENTS[type as AttunementType];
+      if (def) {
+        total += def.rawManaRegen * (1 + state.level * 0.1);  // +10% per level
+      }
+    }
+  }
+  return total;
+}
+
+/**
+ * Get mana type display name
+ */
+export function getManaTypeName(type: ManaType): string {
+  const names: Record<ManaType, string> = {
+    raw: 'Raw Mana',
+    transference: 'Transference',
+    form: 'Form',
+    vision: 'Vision',
+    barrier: 'Barrier',
+    flow: 'Flow',
+    stability: 'Stability',
+    fire: 'Fire',
+    water: 'Water',
+    earth: 'Earth',
+    air: 'Air',
+    light: 'Light',
+    dark: 'Dark',
+    life: 'Life',
+    death: 'Death',
+  };
+  return names[type] || type;
+}
+
+/**
+ * Get mana type color
+ */
+export function getManaTypeColor(type: ManaType): string {
+  const colors: Record<ManaType, string> = {
+    raw: '#A78BFA',      // Light purple
+    transference: '#8B5CF6',  // Purple
+    form: '#3B82F6',     // Blue
+    vision: '#F59E0B',   // Amber
+    barrier: '#10B981',  // Green
+    flow: '#06B6D4',     // Cyan
+    stability: '#78716C', // Stone
+    fire: '#EF4444',     // Red
+    water: '#3B82F6',    // Blue
+    earth: '#A16207',    // Brown
+    air: '#94A3B8',      // Slate
+    light: '#FCD34D',    // Yellow
+    dark: '#6B7280',     // Gray
+    life: '#22C55E',     // Green
+    death: '#7C3AED',    // Violet
+  };
+  return colors[type] || '#A78BFA';
+}

src/lib/game/constants/spells-modules/advanced-spells.ts

@@ -0,0 +1,151 @@
+// ─── Advanced Spells (Tier 2) ────────────────────────────────────────────────
+// 8-12 hours study
+import type { SpellDef } from '../../types';
+import { elemCost } from '../elements';
+
+export const ADVANCED_SPELLS: Record<string, SpellDef> = {
+  // Tier 2 - Advanced Spells (8-12 hours study)
+  inferno: {
+    name: "Inferno",
+    elem: "fire",
+    dmg: 60,
+    cost: elemCost("fire", 8),
+    tier: 2,
+    castSpeed: 1,
+    unlock: 1000,
+    studyTime: 8,
+    desc: "Engulf your enemy in flames."
+  },
+  flameWave: {
+    name: "Flame Wave",
+    elem: "fire",
+    dmg: 45,
+    cost: elemCost("fire", 6),
+    tier: 2,
+    castSpeed: 1.5,
+    unlock: 800,
+    studyTime: 6,
+    desc: "A wave of fire sweeps across the battlefield."
+  },
+  tidalWave: {
+    name: "Tidal Wave",
+    elem: "water",
+    dmg: 55,
+    cost: elemCost("water", 8),
+    tier: 2,
+    castSpeed: 1,
+    unlock: 1000,
+    studyTime: 8,
+    desc: "A massive wave crashes down."
+  },
+  iceStorm: {
+    name: "Ice Storm",
+    elem: "water",
+    dmg: 50,
+    cost: elemCost("water", 7),
+    tier: 2,
+    castSpeed: 1.2,
+    unlock: 900,
+    studyTime: 7,
+    desc: "A storm of ice shards."
+  },
+  earthquake: {
+    name: "Earthquake",
+    elem: "earth",
+    dmg: 70,
+    cost: elemCost("earth", 10),
+    tier: 2,
+    castSpeed: 0.8,
+    unlock: 1200,
+    studyTime: 10,
+    desc: "Shake the very foundation."
+  },
+  stoneBarrage: {
+    name: "Stone Barrage",
+    elem: "earth",
+    dmg: 55,
+    cost: elemCost("earth", 7),
+    tier: 2,
+    castSpeed: 1.2,
+    unlock: 1000,
+    studyTime: 8,
+    desc: "Multiple stone projectiles."
+  },
+  hurricane: {
+    name: "Hurricane",
+    elem: "air",
+    dmg: 50,
+    cost: elemCost("air", 8),
+    tier: 2,
+    castSpeed: 1,
+    unlock: 1000,
+    studyTime: 8,
+    desc: "A devastating hurricane."
+  },
+  windBlade: {
+    name: "Wind Blade",
+    elem: "air",
+    dmg: 40,
+    cost: elemCost("air", 5),
+    tier: 2,
+    castSpeed: 1.8,
+    unlock: 700,
+    studyTime: 6,
+    desc: "A blade of cutting wind."
+  },
+  solarFlare: {
+    name: "Solar Flare",
+    elem: "light",
+    dmg: 65,
+    cost: elemCost("light", 9),
+    tier: 2,
+    castSpeed: 0.9,
+    unlock: 1100,
+    studyTime: 9,
+    desc: "A blinding flare of solar energy."
+  },
+  divineSmite: {
+    name: "Divine Smite",
+    elem: "light",
+    dmg: 55,
+    cost: elemCost("light", 7),
+    tier: 2,
+    castSpeed: 1.2,
+    unlock: 900,
+    studyTime: 7,
+    desc: "A smite of divine power."
+  },
+  voidRift: {
+    name: "Void Rift",
+    elem: "dark",
+    dmg: 55,
+    cost: elemCost("dark", 8),
+    tier: 2,
+    castSpeed: 1,
+    unlock: 1000,
+    studyTime: 8,
+    desc: "Open a rift to the void."
+  },
+  shadowStorm: {
+    name: "Shadow Storm",
+    elem: "dark",
+    dmg: 48,
+    cost: elemCost("dark", 6),
+    tier: 2,
+    castSpeed: 1.3,
+    unlock: 800,
+    studyTime: 6,
+    desc: "A storm of shadows."
+  },
+  soulRend: {
+    name: "Soul Rend",
+    elem: "death",
+    dmg: 50,
+    cost: elemCost("death", 7),
+    tier: 2,
+    castSpeed: 1.1,
+    unlock: 1100,
+    studyTime: 9,
+    desc: "Tear at the enemy's soul."
+  },
+};

src/lib/game/constants/spells-modules/aoe-spells.ts

@@ -0,0 +1,93 @@
+// ─── AOE Spells ──────────────────────────────────────────────────────────────
+// Hit multiple enemies, less damage per target
+import type { SpellDef } from '../../types';
+import { elemCost } from '../elements';
+
+export const AOE_SPELLS: Record<string, SpellDef> = {
+  // Tier 1 AOE
+  fireballAoe: {
+    name: "Fireball (AOE)",
+    elem: "fire",
+    dmg: 8,
+    cost: elemCost("fire", 3),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 150,
+    studyTime: 3,
+    desc: "An explosive fireball that hits 3 enemies.",
+    isAoe: true,
+    aoeTargets: 3,
+    effects: [{ type: 'aoe', value: 3 }]
+  },
+  frostNova: {
+    name: "Frost Nova",
+    elem: "water",
+    dmg: 6,
+    cost: elemCost("water", 3),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 140,
+    studyTime: 3,
+    desc: "A burst of frost hitting 4 enemies. May freeze.",
+    isAoe: true,
+    aoeTargets: 4,
+    effects: [{ type: 'freeze', value: 0.15, chance: 0.2 }]
+  },
+  
+  // Tier 2 AOE
+  meteorShower: {
+    name: "Meteor Shower",
+    elem: "fire",
+    dmg: 20,
+    cost: elemCost("fire", 8),
+    tier: 2,
+    castSpeed: 1,
+    unlock: 1200,
+    studyTime: 10,
+    desc: "Rain meteors on 5 enemies.",
+    isAoe: true,
+    aoeTargets: 5
+  },
+  blizzard: {
+    name: "Blizzard",
+    elem: "water",
+    dmg: 18,
+    cost: elemCost("water", 7),
+    tier: 2,
+    castSpeed: 1.2,
+    unlock: 1000,
+    studyTime: 9,
+    desc: "A freezing blizzard hitting 4 enemies.",
+    isAoe: true,
+    aoeTargets: 4,
+    effects: [{ type: 'freeze', value: 0.1, chance: 0.15 }]
+  },
+  earthquakeAoe: {
+    name: "Earth Tremor",
+    elem: "earth",
+    dmg: 25,
+    cost: elemCost("earth", 8),
+    tier: 2,
+    castSpeed: 0.8,
+    unlock: 1400,
+    studyTime: 10,
+    desc: "Shake the ground, hitting 3 enemies with high damage.",
+    isAoe: true,
+    aoeTargets: 3
+  },
+  
+  // Tier 3 AOE
+  apocalypse: {
+    name: "Apocalypse",
+    elem: "fire",
+    dmg: 80,
+    cost: elemCost("fire", 20),
+    tier: 3,
+    castSpeed: 0.5,
+    unlock: 15000,
+    studyTime: 30,
+    desc: "End times. Hits ALL enemies with devastating fire.",
+    isAoe: true,
+    aoeTargets: 10
+  },
+};

src/lib/game/constants/spells-modules/basic-elemental-spells.ts

@@ -0,0 +1,161 @@
+// ─── Basic Elemental Spells (Tier 1) ────────────────────────────────────────
+import type { SpellDef } from '../../types';
+import { elemCost } from '../elements';
+
+export const BASIC_ELEMENTAL_SPELLS: Record<string, SpellDef> = {
+  // Tier 1 - Basic Elemental Spells (2-4 hours study)
+  fireball: {
+    name: "Fireball",
+    elem: "fire",
+    dmg: 15,
+    cost: elemCost("fire", 2),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 100,
+    studyTime: 2,
+    desc: "Hurl a ball of fire at your enemy."
+  },
+  emberShot: {
+    name: "Ember Shot",
+    elem: "fire",
+    dmg: 10,
+    cost: elemCost("fire", 1),
+    tier: 1,
+    castSpeed: 3,
+    unlock: 75,
+    studyTime: 1,
+    desc: "A quick shot of embers. Efficient fire damage."
+  },
+  waterJet: {
+    name: "Water Jet",
+    elem: "water",
+    dmg: 12,
+    cost: elemCost("water", 2),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 100,
+    studyTime: 2,
+    desc: "A high-pressure jet of water."
+  },
+  iceShard: {
+    name: "Ice Shard",
+    elem: "water",
+    dmg: 14,
+    cost: elemCost("water", 2),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 120,
+    studyTime: 2,
+    desc: "Launch a sharp shard of ice."
+  },
+  gust: {
+    name: "Gust",
+    elem: "air",
+    dmg: 10,
+    cost: elemCost("air", 2),
+    tier: 1,
+    castSpeed: 3,
+    unlock: 100,
+    studyTime: 2,
+    desc: "A powerful gust of wind."
+  },
+  windSlash: {
+    name: "Wind Slash",
+    elem: "air",
+    dmg: 12,
+    cost: elemCost("air", 2),
+    tier: 1,
+    castSpeed: 2.5,
+    unlock: 110,
+    studyTime: 2,
+    desc: "A cutting blade of wind."
+  },
+  stoneBullet: {
+    name: "Stone Bullet",
+    elem: "earth",
+    dmg: 16,
+    cost: elemCost("earth", 2),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 150,
+    studyTime: 3,
+    desc: "Launch a bullet of solid stone."
+  },
+  rockSpike: {
+    name: "Rock Spike",
+    elem: "earth",
+    dmg: 18,
+    cost: elemCost("earth", 3),
+    tier: 1,
+    castSpeed: 1.5,
+    unlock: 180,
+    studyTime: 3,
+    desc: "Summon a spike of rock from below."
+  },
+  lightLance: {
+    name: "Light Lance",
+    elem: "light",
+    dmg: 18,
+    cost: elemCost("light", 2),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 200,
+    studyTime: 4,
+    desc: "A piercing lance of pure light."
+  },
+  radiance: {
+    name: "Radiance",
+    elem: "light",
+    dmg: 14,
+    cost: elemCost("light", 2),
+    tier: 1,
+    castSpeed: 2.5,
+    unlock: 180,
+    studyTime: 3,
+    desc: "Burst of radiant energy."
+  },
+  shadowBolt: {
+    name: "Shadow Bolt",
+    elem: "dark",
+    dmg: 16,
+    cost: elemCost("dark", 2),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 200,
+    studyTime: 4,
+    desc: "A bolt of shadowy energy."
+  },
+  darkPulse: {
+    name: "Dark Pulse",
+    elem: "dark",
+    dmg: 12,
+    cost: elemCost("dark", 1),
+    tier: 1,
+    castSpeed: 3,
+    unlock: 150,
+    studyTime: 2,
+    desc: "A quick pulse of darkness."
+  },
+  drain: {
+    name: "Drain",
+    elem: "death",
+    dmg: 10,
+    cost: elemCost("death", 2),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 150,
+    studyTime: 3,
+    desc: "Drain life force from your enemy.",
+  },
+  rotTouch: {
+    name: "Rot Touch",
+    elem: "death",
+    dmg: 14,
+    cost: elemCost("death", 2),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 170,
+    studyTime: 3,
+    desc: "Touch of decay and rot."
+  },
+};

src/lib/game/constants/spells-modules/compound-spells.ts

@@ -0,0 +1,110 @@
+// ─── Compound Mana Spells ───────────────────────────────────────────────────
+// Blood, Metal, Wood, Sand
+import type { SpellDef } from '../../types';
+import { elemCost } from '../elements';
+
+export const COMPOUND_SPELLS: Record<string, SpellDef> = {
+  // ─── METAL SPELLS (Fire + Earth) ─────────────────────────────────────────────
+  // Metal magic is slow but devastating with high armor pierce
+  metalShard: {
+    name: "Metal Shard",
+    elem: "metal",
+    dmg: 16,
+    cost: elemCost("metal", 2),
+    tier: 1,
+    castSpeed: 1.8,
+    unlock: 220,
+    studyTime: 3,
+    desc: "A sharpened metal shard. Slower but pierces armor.",
+    effects: [{ type: 'armor_pierce', value: 0.25 }]
+  },
+  ironFist: {
+    name: "Iron Fist",
+    elem: "metal",
+    dmg: 28,
+    cost: elemCost("metal", 4),
+    tier: 1,
+    castSpeed: 1.5,
+    unlock: 350,
+    studyTime: 5,
+    desc: "A crushing fist of iron. High armor pierce.",
+    effects: [{ type: 'armor_pierce', value: 0.35 }]
+  },
+  steelTempest: {
+    name: "Steel Tempest",
+    elem: "metal",
+    dmg: 55,
+    cost: elemCost("metal", 8),
+    tier: 2,
+    castSpeed: 1,
+    unlock: 1300,
+    studyTime: 12,
+    desc: "A whirlwind of steel blades. Ignores much armor.",
+    effects: [{ type: 'armor_pierce', value: 0.45 }]
+  },
+  furnaceBlast: {
+    name: "Furnace Blast",
+    elem: "metal",
+    dmg: 200,
+    cost: elemCost("metal", 20),
+    tier: 3,
+    castSpeed: 0.5,
+    unlock: 18000,
+    studyTime: 32,
+    desc: "Molten metal and fire combined. Devastating armor pierce.",
+    effects: [{ type: 'armor_pierce', value: 0.6 }]
+  },
+  
+  // ─── SAND SPELLS (Earth + Water) ────────────────────────────────────────────
+  // Sand magic slows enemies and deals steady damage
+  sandBlast: {
+    name: "Sand Blast",
+    elem: "sand",
+    dmg: 11,
+    cost: elemCost("sand", 2),
+    tier: 1,
+    castSpeed: 3,
+    unlock: 190,
+    studyTime: 3,
+    desc: "A blast of stinging sand. Fast casting.",
+  },
+  sandstorm: {
+    name: "Sandstorm",
+    elem: "sand",
+    dmg: 22,
+    cost: elemCost("sand", 4),
+    tier: 1,
+    castSpeed: 2,
+    unlock: 300,
+    studyTime: 4,
+    desc: "A swirling sandstorm. Hits 2 enemies.",
+    isAoe: true,
+    aoeTargets: 2,
+  },
+  desertWind: {
+    name: "Desert Wind",
+    elem: "sand",
+    dmg: 38,
+    cost: elemCost("sand", 6),
+    tier: 2,
+    castSpeed: 1.5,
+    unlock: 950,
+    studyTime: 8,
+    desc: "A scouring desert wind. Hits 3 enemies.",
+    isAoe: true,
+    aoeTargets: 3,
+  },
+  duneCollapse: {
+    name: "Dune Collapse",
+    elem: "sand",
+    dmg: 100,
+    cost: elemCost("sand", 16),
+    tier: 3,
+    castSpeed: 0.6,
+    unlock: 14000,
+    studyTime: 28,
+    desc: "Dunes collapse on all enemies. Hits 5 targets.",
+    isAoe: true,
+    aoeTargets: 5,
+  },
+};

src/lib/game/constants/spells-modules/enchantment-spells.ts

@@ -0,0 +1,59 @@
+// ─── Magic Sword Enchantments ───────────────────────────────────────────────
+// For weapon enchanting system
+import type { SpellDef } from '../../types';
+import { rawCost } from '../elements';
+
+export const ENCHANTMENT_SPELLS: Record<string, SpellDef> = {
+  fireBlade: {
+    name: "Fire Blade",
+    elem: "fire",
+    dmg: 3,
+    cost: rawCost(1),
+    tier: 1,
+    castSpeed: 4,
+    unlock: 100,
+    studyTime: 2,
+    desc: "Enchant a blade with fire. Burns enemies over time.",
+    isWeaponEnchant: true,
+    effects: [{ type: 'burn', value: 2, duration: 3 }]
+  },
+  frostBlade: {
+    name: "Frost Blade",
+    elem: "water",
+    dmg: 3,
+    cost: rawCost(1),
+    tier: 1,
+    castSpeed: 4,
+    unlock: 100,
+    studyTime: 2,
+    desc: "Enchant a blade with frost. Prevents enemy dodge.",
+    isWeaponEnchant: true,
+    effects: [{ type: 'freeze', value: 0, chance: 1 }] // 100% freeze = no dodge
+  },
+  lightningBlade: {
+    name: "Lightning Blade",
+    elem: "lightning",
+    dmg: 4,
+    cost: rawCost(1),
+    tier: 1,
+    castSpeed: 5,
+    unlock: 150,
+    studyTime: 3,
+    desc: "Enchant a blade with lightning. Pierces 30% armor.",
+    isWeaponEnchant: true,
+    effects: [{ type: 'armor_pierce', value: 0.3 }]
+  },
+  voidBlade: {
+    name: "Void Blade",
+    elem: "dark",
+    dmg: 5,
+    cost: rawCost(2),
+    tier: 2,
+    castSpeed: 3,
+    unlock: 800,
+    studyTime: 8,
+    desc: "Enchant a blade with void. +20% damage.",
+    isWeaponEnchant: true,
+    effects: [{ type: 'buff', value: 0.2 }]
+  },
+};

src/lib/game/constants/spells-modules/legendary-spells.ts

@@ -0,0 +1,41 @@
+// ─── Legendary Spells (Tier 4) ──────────────────────────────────────────────
+// 40-60 hours study, require exotic elements
+import type { SpellDef } from '../../types';
+import { elemCost } from '../elements';
+
+export const LEGENDARY_SPELLS: Record<string, SpellDef> = {
+  // Tier 4 - Legendary Spells (40-60 hours study, require exotic elements)
+  stellarNova: {
+    name: "Stellar Nova",
+    elem: "stellar",
+    dmg: 500,
+    cost: elemCost("stellar", 15),
+    tier: 4,
+    castSpeed: 0.4,
+    unlock: 50000,
+    studyTime: 48,
+    desc: "A nova of stellar energy."
+  },
+  voidCollapse: {
+    name: "Void Collapse",
+    elem: "void",
+    dmg: 450,
+    cost: elemCost("void", 12),
+    tier: 4,
+    castSpeed: 0.45,
+    unlock: 40000,
+    studyTime: 42,
+    desc: "Collapse the void upon your enemy."
+  },
+  crystalShatter: {
+    name: "Crystal Shatter",
+    elem: "crystal",
+    dmg: 400,
+    cost: elemCost("crystal", 10),
+    tier: 4,
+    castSpeed: 0.5,
+    unlock: 35000,
+    studyTime: 36,
+    desc: "Shatter crystalline energy."
+  },
+};

src/lib/game/constants/spells-modules/lightning-spells.ts

@@ -0,0 +1,76 @@
+// ─── Lightning Spells ────────────────────────────────────────────────────────
+// Fast, armor-piercing, harder to dodge
+import type { SpellDef } from '../../types';
+import { elemCost } from '../elements';
+
+export const LIGHTNING_SPELLS: Record<string, SpellDef> = {
+  // Tier 1 - Basic Lightning
+  spark: {
+    name: "Spark",
+    elem: "lightning",
+    dmg: 8,
+    cost: elemCost("lightning", 1),
+    tier: 1,
+    castSpeed: 4,
+    unlock: 120,
+    studyTime: 2,
+    desc: "A quick spark of lightning. Very fast and hard to dodge.",
+    effects: [{ type: 'armor_pierce', value: 0.2 }]
+  },
+  lightningBolt: {
+    name: "Lightning Bolt",
+    elem: "lightning",
+    dmg: 14,
+    cost: elemCost("lightning", 2),
+    tier: 1,
+    castSpeed: 3,
+    unlock: 150,
+    studyTime: 3,
+    desc: "A bolt of lightning that pierces armor.",
+    effects: [{ type: 'armor_pierce', value: 0.3 }]
+  },
+  
+  // Tier 2 - Advanced Lightning
+  chainLightning: {
+    name: "Chain Lightning",
+    elem: "lightning",
+    dmg: 25,
+    cost: elemCost("lightning", 5),
+    tier: 2,
+    castSpeed: 2,
+    unlock: 900,
+    studyTime: 8,
+    desc: "Lightning that arcs between enemies. Hits 3 targets.",
+    isAoe: true,
+    aoeTargets: 3,
+    effects: [{ type: 'chain', value: 3 }]
+  },
+  stormCall: {
+    name: "Storm Call",
+    elem: "lightning",
+    dmg: 40,
+    cost: elemCost("lightning", 6),
+    tier: 2,
+    castSpeed: 1.5,
+    unlock: 1100,
+    studyTime: 10,
+    desc: "Call down a storm. Hits 2 targets with armor pierce.",
+    isAoe: true,
+    aoeTargets: 2,
+    effects: [{ type: 'armor_pierce', value: 0.4 }]
+  },
+  
+  // Tier 3 - Master Lightning
+  thunderStrike: {
+    name: "Thunder Strike",
+    elem: "lightning",
+    dmg: 150,
+    cost: elemCost("lightning", 15),
+    tier: 3,
+    castSpeed: 0.8,
+    unlock: 10000,
+    studyTime: 24,
+    desc: "Devastating lightning that ignores 50% armor.",
+    effects: [{ type: 'armor_pierce', value: 0.5 }]
+  },
+};

src/lib/game/constants/spells-modules/master-spells.ts

@@ -0,0 +1,85 @@
+// ─── Master Spells (Tier 3) ─────────────────────────────────────────────────
+// 20-30 hours study
+import type { SpellDef } from '../../types';
+import { elemCost } from '../elements';
+
+export const MASTER_SPELLS: Record<string, SpellDef> = {
+  // Tier 3 - Master Spells (20-30 hours study)
+  pyroclasm: {
+    name: "Pyroclasm",
+    elem: "fire",
+    dmg: 250,
+    cost: elemCost("fire", 25),
+    tier: 3,
+    castSpeed: 0.6,
+    unlock: 10000,
+    studyTime: 24,
+    desc: "An eruption of volcanic fury."
+  },
+  tsunami: {
+    name: "Tsunami",
+    elem: "water",
+    dmg: 220,
+    cost: elemCost("water", 22),
+    tier: 3,
+    castSpeed: 0.65,
+    unlock: 10000,
+    studyTime: 24,
+    desc: "A towering wall of water."
+  },
+  meteorStrike: {
+    name: "Meteor Strike",
+    elem: "earth",
+    dmg: 280,
+    cost: elemCost("earth", 28),
+    tier: 3,
+    castSpeed: 0.5,
+    unlock: 12000,
+    studyTime: 28,
+    desc: "Call down a meteor from the heavens."
+  },
+  cosmicStorm: {
+    name: "Cosmic Storm",
+    elem: "air",
+    dmg: 200,
+    cost: elemCost("air", 20),
+    tier: 3,
+    castSpeed: 0.7,
+    unlock: 10000,
+    studyTime: 24,
+    desc: "A storm of cosmic proportions."
+  },
+  heavenLight: {
+    name: "Heaven's Light",
+    elem: "light",
+    dmg: 240,
+    cost: elemCost("light", 24),
+    tier: 3,
+    castSpeed: 0.6,
+    unlock: 11000,
+    studyTime: 26,
+    desc: "The light of heaven itself."
+  },
+  oblivion: {
+    name: "Oblivion",
+    elem: "dark",
+    dmg: 230,
+    cost: elemCost("dark", 23),
+    tier: 3,
+    castSpeed: 0.6,
+    unlock: 10500,
+    studyTime: 25,
+    desc: "Consign to oblivion."
+  },
+  deathMark: {
+    name: "Death Mark",
+    elem: "death",
+    dmg: 200,
+    cost: elemCost("death", 20),
+    tier: 3,
+    castSpeed: 0.7,
+    unlock: 10000,
+    studyTime: 24,
+    desc: "Mark for death."
+  },
+};

src/lib/game/constants/spells-modules/raw-spells.ts

@@ -0,0 +1,29 @@
+// ─── Raw Mana Spells (Tier 0) ───────────────────────────────────────────────
+import type { SpellDef } from '../../types';
+import { rawCost } from '../elements';
+
+export const RAW_SPELLS: Record<string, SpellDef> = {
+  // Tier 0 - Basic Raw Mana Spells (fast, costs raw mana)
+  manaBolt: {
+    name: "Mana Bolt",
+    elem: "raw",
+    dmg: 5,
+    cost: rawCost(3),
+    tier: 0,
+    castSpeed: 3,
+    unlock: 0,
+    studyTime: 0,
+    desc: "A weak bolt of pure mana. Costs raw mana instead of elemental."
+  },
+  manaStrike: {
+    name: "Mana Strike",
+    elem: "raw",
+    dmg: 8,
+    cost: rawCost(5),
+    tier: 0,
+    castSpeed: 2.5,
+    unlock: 50,
+    studyTime: 1,
+    desc: "A concentrated strike of raw mana. Slightly stronger than Mana Bolt."
+  },
+};

src/lib/game/constants/spells-modules/utility-spells.ts

@@ -0,0 +1,53 @@
+// ─── Utility Mana Spells ────────────────────────────────────────────────────
+// Mental, Transference, Force
+import type { SpellDef } from '../../types';
+import { elemCost } from '../elements';
+
+export const UTILITY_SPELLS: Record<string, SpellDef> = {
+  // ─── TRANSFERENCE SPELLS ─────────────────────────────────────────────────────
+  // Transference magic moves mana and enhances efficiency
+  transferStrike: {
+    name: "Transfer Strike",
+    elem: "transference",
+    dmg: 9,
+    cost: elemCost("transference", 2),
+    tier: 1,
+    castSpeed: 3,
+    unlock: 150,
+    studyTime: 2,
+    desc: "Strike that transfers energy. Very efficient.",
+  },
+  manaRip: {
+    name: "Mana Rip",
+    elem: "transference",
+    dmg: 16,
+    cost: elemCost("transference", 3),
+    tier: 1,
+    castSpeed: 2.5,
+    unlock: 250,
+    studyTime: 4,
+    desc: "Rip mana from the enemy. High efficiency.",
+  },
+  essenceDrain: {
+    name: "Essence Drain",
+    elem: "transference",
+    dmg: 42,
+    cost: elemCost("transference", 7),
+    tier: 2,
+    castSpeed: 1.3,
+    unlock: 1050,
+    studyTime: 10,
+    desc: "Drain the enemy's essence.",
+  },
+  soulTransfer: {
+    name: "Soul Transfer",
+    elem: "transference",
+    dmg: 130,
+    cost: elemCost("transference", 16),
+    tier: 3,
+    castSpeed: 0.6,
+    unlock: 13000,
+    studyTime: 26,
+    desc: "Transfer the soul's energy.",
+  },
+};

src/lib/game/constants/spells.ts

@@ -1,826 +1,39 @@
 // ─── Spells ────────────────────────────────────────────────────────────────────
-import type { SpellDef, SpellCost } from '../types';
-import { rawCost, elemCost } from './elements';
+// Main entry point - re-exports from modular spell definitions
+// See spells-modules/ directory for individual spell categories
 
-export const SPELLS_DEF: Record<string, SpellDef> = {
-  // Tier 0 - Basic Raw Mana Spells (fast, costs raw mana)
-  manaBolt: {
-    name: "Mana Bolt",
-    elem: "raw",
-    dmg: 5,
-    cost: rawCost(3),
-    tier: 0,
-    castSpeed: 3,
-    unlock: 0,
-    studyTime: 0,
-    desc: "A weak bolt of pure mana. Costs raw mana instead of elemental."
-  },
-  manaStrike: {
-    name: "Mana Strike",
-    elem: "raw",
-    dmg: 8,
-    cost: rawCost(5),
-    tier: 0,
-    castSpeed: 2.5,
-    unlock: 50,
-    studyTime: 1,
-    desc: "A concentrated strike of raw mana. Slightly stronger than Mana Bolt."
-  },
-  
-  // Tier 1 - Basic Elemental Spells (2-4 hours study)
-  fireball: {
-    name: "Fireball",
-    elem: "fire",
-    dmg: 15,
-    cost: elemCost("fire", 2),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 100,
-    studyTime: 2,
-    desc: "Hurl a ball of fire at your enemy."
-  },
-  emberShot: {
-    name: "Ember Shot",
-    elem: "fire",
-    dmg: 10,
-    cost: elemCost("fire", 1),
-    tier: 1,
-    castSpeed: 3,
-    unlock: 75,
-    studyTime: 1,
-    desc: "A quick shot of embers. Efficient fire damage."
-  },
-  waterJet: {
-    name: "Water Jet",
-    elem: "water",
-    dmg: 12,
-    cost: elemCost("water", 2),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 100,
-    studyTime: 2,
-    desc: "A high-pressure jet of water."
-  },
-  iceShard: {
-    name: "Ice Shard",
-    elem: "water",
-    dmg: 14,
-    cost: elemCost("water", 2),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 120,
-    studyTime: 2,
-    desc: "Launch a sharp shard of ice."
-  },
-  gust: {
-    name: "Gust",
-    elem: "air",
-    dmg: 10,
-    cost: elemCost("air", 2),
-    tier: 1,
-    castSpeed: 3,
-    unlock: 100,
-    studyTime: 2,
-    desc: "A powerful gust of wind."
-  },
-  windSlash: {
-    name: "Wind Slash",
-    elem: "air",
-    dmg: 12,
-    cost: elemCost("air", 2),
-    tier: 1,
-    castSpeed: 2.5,
-    unlock: 110,
-    studyTime: 2,
-    desc: "A cutting blade of wind."
-  },
-  stoneBullet: {
-    name: "Stone Bullet",
-    elem: "earth",
-    dmg: 16,
-    cost: elemCost("earth", 2),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 150,
-    studyTime: 3,
-    desc: "Launch a bullet of solid stone."
-  },
-  rockSpike: {
-    name: "Rock Spike",
-    elem: "earth",
-    dmg: 18,
-    cost: elemCost("earth", 3),
-    tier: 1,
-    castSpeed: 1.5,
-    unlock: 180,
-    studyTime: 3,
-    desc: "Summon a spike of rock from below."
-  },
-  lightLance: {
-    name: "Light Lance",
-    elem: "light",
-    dmg: 18,
-    cost: elemCost("light", 2),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 200,
-    studyTime: 4,
-    desc: "A piercing lance of pure light."
-  },
-  radiance: {
-    name: "Radiance",
-    elem: "light",
-    dmg: 14,
-    cost: elemCost("light", 2),
-    tier: 1,
-    castSpeed: 2.5,
-    unlock: 180,
-    studyTime: 3,
-    desc: "Burst of radiant energy."
-  },
-  shadowBolt: {
-    name: "Shadow Bolt",
-    elem: "dark",
-    dmg: 16,
-    cost: elemCost("dark", 2),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 200,
-    studyTime: 4,
-    desc: "A bolt of shadowy energy."
-  },
-  darkPulse: {
-    name: "Dark Pulse",
-    elem: "dark",
-    dmg: 12,
-    cost: elemCost("dark", 1),
-    tier: 1,
-    castSpeed: 3,
-    unlock: 150,
-    studyTime: 2,
-    desc: "A quick pulse of darkness."
-  },
-  drain: {
-    name: "Drain",
-    elem: "death",
-    dmg: 10,
-    cost: elemCost("death", 2),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 150,
-    studyTime: 3,
-    desc: "Drain life force from your enemy.",
-  },
-  rotTouch: {
-    name: "Rot Touch",
-    elem: "death",
-    dmg: 14,
-    cost: elemCost("death", 2),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 170,
-    studyTime: 3,
-    desc: "Touch of decay and rot."
-  },
+export { RAW_SPELLS } from './spells-modules/raw-spells';
+export { BASIC_ELEMENTAL_SPELLS } from './spells-modules/basic-elemental-spells';
+export { LIGHTNING_SPELLS } from './spells-modules/lightning-spells';
+export { AOE_SPELLS } from './spells-modules/aoe-spells';
+export { ADVANCED_SPELLS } from './spells-modules/advanced-spells';
+export { MASTER_SPELLS } from './spells-modules/master-spells';
+export { LEGENDARY_SPELLS } from './spells-modules/legendary-spells';
+export { ENCHANTMENT_SPELLS } from './spells-modules/enchantment-spells';
+export { COMPOUND_SPELLS } from './spells-modules/compound-spells';
+export { UTILITY_SPELLS } from './spells-modules/utility-spells';
 
-  
-  // Tier 2 - Advanced Spells (8-12 hours study)
-  inferno: {
-    name: "Inferno",
-    elem: "fire",
-    dmg: 60,
-    cost: elemCost("fire", 8),
-    tier: 2,
-    castSpeed: 1,
-    unlock: 1000,
-    studyTime: 8,
-    desc: "Engulf your enemy in flames."
-  },
-  flameWave: {
-    name: "Flame Wave",
-    elem: "fire",
-    dmg: 45,
-    cost: elemCost("fire", 6),
-    tier: 2,
-    castSpeed: 1.5,
-    unlock: 800,
-    studyTime: 6,
-    desc: "A wave of fire sweeps across the battlefield."
-  },
-  tidalWave: {
-    name: "Tidal Wave",
-    elem: "water",
-    dmg: 55,
-    cost: elemCost("water", 8),
-    tier: 2,
-    castSpeed: 1,
-    unlock: 1000,
-    studyTime: 8,
-    desc: "A massive wave crashes down."
-  },
-  iceStorm: {
-    name: "Ice Storm",
-    elem: "water",
-    dmg: 50,
-    cost: elemCost("water", 7),
-    tier: 2,
-    castSpeed: 1.2,
-    unlock: 900,
-    studyTime: 7,
-    desc: "A storm of ice shards."
-  },
-  earthquake: {
-    name: "Earthquake",
-    elem: "earth",
-    dmg: 70,
-    cost: elemCost("earth", 10),
-    tier: 2,
-    castSpeed: 0.8,
-    unlock: 1200,
-    studyTime: 10,
-    desc: "Shake the very foundation."
-  },
-  stoneBarrage: {
-    name: "Stone Barrage",
-    elem: "earth",
-    dmg: 55,
-    cost: elemCost("earth", 7),
-    tier: 2,
-    castSpeed: 1.2,
-    unlock: 1000,
-    studyTime: 8,
-    desc: "Multiple stone projectiles."
-  },
-  hurricane: {
-    name: "Hurricane",
-    elem: "air",
-    dmg: 50,
-    cost: elemCost("air", 8),
-    tier: 2,
-    castSpeed: 1,
-    unlock: 1000,
-    studyTime: 8,
-    desc: "A devastating hurricane."
-  },
-  windBlade: {
-    name: "Wind Blade",
-    elem: "air",
-    dmg: 40,
-    cost: elemCost("air", 5),
-    tier: 2,
-    castSpeed: 1.8,
-    unlock: 700,
-    studyTime: 6,
-    desc: "A blade of cutting wind."
-  },
-  solarFlare: {
-    name: "Solar Flare",
-    elem: "light",
-    dmg: 65,
-    cost: elemCost("light", 9),
-    tier: 2,
-    castSpeed: 0.9,
-    unlock: 1100,
-    studyTime: 9,
-    desc: "A blinding flare of solar energy."
-  },
-  divineSmite: {
-    name: "Divine Smite",
-    elem: "light",
-    dmg: 55,
-    cost: elemCost("light", 7),
-    tier: 2,
-    castSpeed: 1.2,
-    unlock: 900,
-    studyTime: 7,
-    desc: "A smite of divine power."
-  },
-  voidRift: {
-    name: "Void Rift",
-    elem: "dark",
-    dmg: 55,
-    cost: elemCost("dark", 8),
-    tier: 2,
-    castSpeed: 1,
-    unlock: 1000,
-    studyTime: 8,
-    desc: "Open a rift to the void."
-  },
-  shadowStorm: {
-    name: "Shadow Storm",
-    elem: "dark",
-    dmg: 48,
-    cost: elemCost("dark", 6),
-    tier: 2,
-    castSpeed: 1.3,
-    unlock: 800,
-    studyTime: 6,
-    desc: "A storm of shadows."
-  },
-  soulRend: {
-    name: "Soul Rend",
-    elem: "death",
-    dmg: 50,
-    cost: elemCost("death", 7),
-    tier: 2,
-    castSpeed: 1.1,
-    unlock: 1100,
-    studyTime: 9,
-    desc: "Tear at the enemy's soul."
-  },
-  
-  // Tier 3 - Master Spells (20-30 hours study)
-  pyroclasm: {
-    name: "Pyroclasm",
-    elem: "fire",
-    dmg: 250,
-    cost: elemCost("fire", 25),
-    tier: 3,
-    castSpeed: 0.6,
-    unlock: 10000,
-    studyTime: 24,
-    desc: "An eruption of volcanic fury."
-  },
-  tsunami: {
-    name: "Tsunami",
-    elem: "water",
-    dmg: 220,
-    cost: elemCost("water", 22),
-    tier: 3,
-    castSpeed: 0.65,
-    unlock: 10000,
-    studyTime: 24,
-    desc: "A towering wall of water."
-  },
-  meteorStrike: {
-    name: "Meteor Strike",
-    elem: "earth",
-    dmg: 280,
-    cost: elemCost("earth", 28),
-    tier: 3,
-    castSpeed: 0.5,
-    unlock: 12000,
-    studyTime: 28,
-    desc: "Call down a meteor from the heavens."
-  },
-  cosmicStorm: {
-    name: "Cosmic Storm",
-    elem: "air",
-    dmg: 200,
-    cost: elemCost("air", 20),
-    tier: 3,
-    castSpeed: 0.7,
-    unlock: 10000,
-    studyTime: 24,
-    desc: "A storm of cosmic proportions."
-  },
-  heavenLight: {
-    name: "Heaven's Light",
-    elem: "light",
-    dmg: 240,
-    cost: elemCost("light", 24),
-    tier: 3,
-    castSpeed: 0.6,
-    unlock: 11000,
-    studyTime: 26,
-    desc: "The light of heaven itself."
-  },
-  oblivion: {
-    name: "Oblivion",
-    elem: "dark",
-    dmg: 230,
-    cost: elemCost("dark", 23),
-    tier: 3,
-    castSpeed: 0.6,
-    unlock: 10500,
-    studyTime: 25,
-    desc: "Consign to oblivion."
-  },
-  deathMark: {
-    name: "Death Mark",
-    elem: "death",
-    dmg: 200,
-    cost: elemCost("death", 20),
-    tier: 3,
-    castSpeed: 0.7,
-    unlock: 10000,
-    studyTime: 24,
-    desc: "Mark for death."
-  },
-  
-  // Tier 4 - Legendary Spells (40-60 hours study, require exotic elements)
-  stellarNova: {
-    name: "Stellar Nova",
-    elem: "stellar",
-    dmg: 500,
-    cost: elemCost("stellar", 15),
-    tier: 4,
-    castSpeed: 0.4,
-    unlock: 50000,
-    studyTime: 48,
-    desc: "A nova of stellar energy."
-  },
-  voidCollapse: {
-    name: "Void Collapse",
-    elem: "void",
-    dmg: 450,
-    cost: elemCost("void", 12),
-    tier: 4,
-    castSpeed: 0.45,
-    unlock: 40000,
-    studyTime: 42,
-    desc: "Collapse the void upon your enemy."
-  },
-  crystalShatter: {
-    name: "Crystal Shatter",
-    elem: "crystal",
-    dmg: 400,
-    cost: elemCost("crystal", 10),
-    tier: 4,
-    castSpeed: 0.5,
-    unlock: 35000,
-    studyTime: 36,
-    desc: "Shatter crystalline energy."
-  },
-  
-  // ═══════════════════════════════════════════════════════════════════════════
-  // LIGHTNING SPELLS - Fast, armor-piercing, harder to dodge
-  // ═══════════════════════════════════════════════════════════════════════════
-  
-  // Tier 1 - Basic Lightning
-  spark: {
-    name: "Spark",
-    elem: "lightning",
-    dmg: 8,
-    cost: elemCost("lightning", 1),
-    tier: 1,
-    castSpeed: 4,
-    unlock: 120,
-    studyTime: 2,
-    desc: "A quick spark of lightning. Very fast and hard to dodge.",
-    effects: [{ type: 'armor_pierce', value: 0.2 }]
-  },
-  lightningBolt: {
-    name: "Lightning Bolt",
-    elem: "lightning",
-    dmg: 14,
-    cost: elemCost("lightning", 2),
-    tier: 1,
-    castSpeed: 3,
-    unlock: 150,
-    studyTime: 3,
-    desc: "A bolt of lightning that pierces armor.",
-    effects: [{ type: 'armor_pierce', value: 0.3 }]
-  },
-  
-  // Tier 2 - Advanced Lightning
-  chainLightning: {
-    name: "Chain Lightning",
-    elem: "lightning",
-    dmg: 25,
-    cost: elemCost("lightning", 5),
-    tier: 2,
-    castSpeed: 2,
-    unlock: 900,
-    studyTime: 8,
-    desc: "Lightning that arcs between enemies. Hits 3 targets.",
-    isAoe: true,
-    aoeTargets: 3,
-    effects: [{ type: 'chain', value: 3 }]
-  },
-  stormCall: {
-    name: "Storm Call",
-    elem: "lightning",
-    dmg: 40,
-    cost: elemCost("lightning", 6),
-    tier: 2,
-    castSpeed: 1.5,
-    unlock: 1100,
-    studyTime: 10,
-    desc: "Call down a storm. Hits 2 targets with armor pierce.",
-    isAoe: true,
-    aoeTargets: 2,
-    effects: [{ type: 'armor_pierce', value: 0.4 }]
-  },
-  
-  // Tier 3 - Master Lightning
-  thunderStrike: {
-    name: "Thunder Strike",
-    elem: "lightning",
-    dmg: 150,
-    cost: elemCost("lightning", 15),
-    tier: 3,
-    castSpeed: 0.8,
-    unlock: 10000,
-    studyTime: 24,
-    desc: "Devastating lightning that ignores 50% armor.",
-    effects: [{ type: 'armor_pierce', value: 0.5 }]
-  },
-  
-  // ═══════════════════════════════════════════════════════════════════════════
-  // AOE SPELLS - Hit multiple enemies, less damage per target
-  // ═══════════════════════════════════════════════════════════════════════════
-  
-  // Tier 1 AOE
-  fireballAoe: {
-    name: "Fireball (AOE)",
-    elem: "fire",
-    dmg: 8,
-    cost: elemCost("fire", 3),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 150,
-    studyTime: 3,
-    desc: "An explosive fireball that hits 3 enemies.",
-    isAoe: true,
-    aoeTargets: 3,
-    effects: [{ type: 'aoe', value: 3 }]
-  },
-  frostNova: {
-    name: "Frost Nova",
-    elem: "water",
-    dmg: 6,
-    cost: elemCost("water", 3),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 140,
-    studyTime: 3,
-    desc: "A burst of frost hitting 4 enemies. May freeze.",
-    isAoe: true,
-    aoeTargets: 4,
-    effects: [{ type: 'freeze', value: 0.15, chance: 0.2 }]
-  },
-  
-  // Tier 2 AOE
-  meteorShower: {
-    name: "Meteor Shower",
-    elem: "fire",
-    dmg: 20,
-    cost: elemCost("fire", 8),
-    tier: 2,
-    castSpeed: 1,
-    unlock: 1200,
-    studyTime: 10,
-    desc: "Rain meteors on 5 enemies.",
-    isAoe: true,
-    aoeTargets: 5
-  },
-  blizzard: {
-    name: "Blizzard",
-    elem: "water",
-    dmg: 18,
-    cost: elemCost("water", 7),
-    tier: 2,
-    castSpeed: 1.2,
-    unlock: 1000,
-    studyTime: 9,
-    desc: "A freezing blizzard hitting 4 enemies.",
-    isAoe: true,
-    aoeTargets: 4,
-    effects: [{ type: 'freeze', value: 0.1, chance: 0.15 }]
-  },
-  earthquakeAoe: {
-    name: "Earth Tremor",
-    elem: "earth",
-    dmg: 25,
-    cost: elemCost("earth", 8),
-    tier: 2,
-    castSpeed: 0.8,
-    unlock: 1400,
-    studyTime: 10,
-    desc: "Shake the ground, hitting 3 enemies with high damage.",
-    isAoe: true,
-    aoeTargets: 3
-  },
-  
-  // Tier 3 AOE
-  apocalypse: {
-    name: "Apocalypse",
-    elem: "fire",
-    dmg: 80,
-    cost: elemCost("fire", 20),
-    tier: 3,
-    castSpeed: 0.5,
-    unlock: 15000,
-    studyTime: 30,
-    desc: "End times. Hits ALL enemies with devastating fire.",
-    isAoe: true,
-    aoeTargets: 10
-  },
-  
-  // ═══════════════════════════════════════════════════════════════════════════
-  // MAGIC SWORD ENCHANTMENTS - For weapon enchanting system
-  // ═══════════════════════════════════════════════════════════════════════════
-  
-  fireBlade: {
-    name: "Fire Blade",
-    elem: "fire",
-    dmg: 3,
-    cost: rawCost(1),
-    tier: 1,
-    castSpeed: 4,
-    unlock: 100,
-    studyTime: 2,
-    desc: "Enchant a blade with fire. Burns enemies over time.",
-    isWeaponEnchant: true,
-    effects: [{ type: 'burn', value: 2, duration: 3 }]
-  },
-  frostBlade: {
-    name: "Frost Blade",
-    elem: "water",
-    dmg: 3,
-    cost: rawCost(1),
-    tier: 1,
-    castSpeed: 4,
-    unlock: 100,
-    studyTime: 2,
-    desc: "Enchant a blade with frost. Prevents enemy dodge.",
-    isWeaponEnchant: true,
-    effects: [{ type: 'freeze', value: 0, chance: 1 }] // 100% freeze = no dodge
-  },
-  lightningBlade: {
-    name: "Lightning Blade",
-    elem: "lightning",
-    dmg: 4,
-    cost: rawCost(1),
-    tier: 1,
-    castSpeed: 5,
-    unlock: 150,
-    studyTime: 3,
-    desc: "Enchant a blade with lightning. Pierces 30% armor.",
-    isWeaponEnchant: true,
-    effects: [{ type: 'armor_pierce', value: 0.3 }]
-  },
-  voidBlade: {
-    name: "Void Blade",
-    elem: "dark",
-    dmg: 5,
-    cost: rawCost(2),
-    tier: 2,
-    castSpeed: 3,
-    unlock: 800,
-    studyTime: 8,
-    desc: "Enchant a blade with void. +20% damage.",
-    isWeaponEnchant: true,
-    effects: [{ type: 'buff', value: 0.2 }]
-  },
-  
-  // ═══════════════════════════════════════════════════════════════════════════
-  // COMPOUND MANA SPELLS - Blood, Metal, Wood, Sand
-  // ═══════════════════════════════════════════════════════════════════════════
-  
-  // ─── METAL SPELLS (Fire + Earth) ─────────────────────────────────────────────
-  // Metal magic is slow but devastating with high armor pierce
-  metalShard: {
-    name: "Metal Shard",
-    elem: "metal",
-    dmg: 16,
-    cost: elemCost("metal", 2),
-    tier: 1,
-    castSpeed: 1.8,
-    unlock: 220,
-    studyTime: 3,
-    desc: "A sharpened metal shard. Slower but pierces armor.",
-    effects: [{ type: 'armor_pierce', value: 0.25 }]
-  },
-  ironFist: {
-    name: "Iron Fist",
-    elem: "metal",
-    dmg: 28,
-    cost: elemCost("metal", 4),
-    tier: 1,
-    castSpeed: 1.5,
-    unlock: 350,
-    studyTime: 5,
-    desc: "A crushing fist of iron. High armor pierce.",
-    effects: [{ type: 'armor_pierce', value: 0.35 }]
-  },
-  steelTempest: {
-    name: "Steel Tempest",
-    elem: "metal",
-    dmg: 55,
-    cost: elemCost("metal", 8),
-    tier: 2,
-    castSpeed: 1,
-    unlock: 1300,
-    studyTime: 12,
-    desc: "A whirlwind of steel blades. Ignores much armor.",
-    effects: [{ type: 'armor_pierce', value: 0.45 }]
-  },
-  furnaceBlast: {
-    name: "Furnace Blast",
-    elem: "metal",
-    dmg: 200,
-    cost: elemCost("metal", 20),
-    tier: 3,
-    castSpeed: 0.5,
-    unlock: 18000,
-    studyTime: 32,
-    desc: "Molten metal and fire combined. Devastating armor pierce.",
-    effects: [{ type: 'armor_pierce', value: 0.6 }]
-  },
-  
-  // ─── SAND SPELLS (Earth + Water) ────────────────────────────────────────────
-  // Sand magic slows enemies and deals steady damage
-  sandBlast: {
-    name: "Sand Blast",
-    elem: "sand",
-    dmg: 11,
-    cost: elemCost("sand", 2),
-    tier: 1,
-    castSpeed: 3,
-    unlock: 190,
-    studyTime: 3,
-    desc: "A blast of stinging sand. Fast casting.",
-  },
-  sandstorm: {
-    name: "Sandstorm",
-    elem: "sand",
-    dmg: 22,
-    cost: elemCost("sand", 4),
-    tier: 1,
-    castSpeed: 2,
-    unlock: 300,
-    studyTime: 4,
-    desc: "A swirling sandstorm. Hits 2 enemies.",
-    isAoe: true,
-    aoeTargets: 2,
-  },
-  desertWind: {
-    name: "Desert Wind",
-    elem: "sand",
-    dmg: 38,
-    cost: elemCost("sand", 6),
-    tier: 2,
-    castSpeed: 1.5,
-    unlock: 950,
-    studyTime: 8,
-    desc: "A scouring desert wind. Hits 3 enemies.",
-    isAoe: true,
-    aoeTargets: 3,
-  },
-  duneCollapse: {
-    name: "Dune Collapse",
-    elem: "sand",
-    dmg: 100,
-    cost: elemCost("sand", 16),
-    tier: 3,
-    castSpeed: 0.6,
-    unlock: 14000,
-    studyTime: 28,
-    desc: "Dunes collapse on all enemies. Hits 5 targets.",
-    isAoe: true,
-    aoeTargets: 5,
-  },
-  
-  // ═══════════════════════════════════════════════════════════════════════════
-  // UTILITY MANA SPELLS - Mental, Transference, Force
-  // ═══════════════════════════════════════════════════════════════════════════
-  
-  // ─── TRANSFERENCE SPELLS ─────────────────────────────────────────────────────
-  // Transference magic moves mana and enhances efficiency
-  transferStrike: {
-    name: "Transfer Strike",
-    elem: "transference",
-    dmg: 9,
-    cost: elemCost("transference", 2),
-    tier: 1,
-    castSpeed: 3,
-    unlock: 150,
-    studyTime: 2,
-    desc: "Strike that transfers energy. Very efficient.",
-  },
-  manaRip: {
-    name: "Mana Rip",
-    elem: "transference",
-    dmg: 16,
-    cost: elemCost("transference", 3),
-    tier: 1,
-    castSpeed: 2.5,
-    unlock: 250,
-    studyTime: 4,
-    desc: "Rip mana from the enemy. High efficiency.",
-  },
-  essenceDrain: {
-    name: "Essence Drain",
-    elem: "transference",
-    dmg: 42,
-    cost: elemCost("transference", 7),
-    tier: 2,
-    castSpeed: 1.3,
-    unlock: 1050,
-    studyTime: 10,
-    desc: "Drain the enemy's essence.",
-  },
-  soulTransfer: {
-    name: "Soul Transfer",
-    elem: "transference",
-    dmg: 130,
-    cost: elemCost("transference", 16),
-    tier: 3,
-    castSpeed: 0.6,
-    unlock: 13000,
-    studyTime: 26,
-    desc: "Transfer the soul's energy.",
-  },
+// Convenience: export combined SPELLS_DEF for backward compatibility
+import { RAW_SPELLS } from './spells-modules/raw-spells';
+import { BASIC_ELEMENTAL_SPELLS } from './spells-modules/basic-elemental-spells';
+import { LIGHTNING_SPELLS } from './spells-modules/lightning-spells';
+import { AOE_SPELLS } from './spells-modules/aoe-spells';
+import { ADVANCED_SPELLS } from './spells-modules/advanced-spells';
+import { MASTER_SPELLS } from './spells-modules/master-spells';
+import { LEGENDARY_SPELLS } from './spells-modules/legendary-spells';
+import { ENCHANTMENT_SPELLS } from './spells-modules/enchantment-spells';
+import { COMPOUND_SPELLS } from './spells-modules/compound-spells';
+import { UTILITY_SPELLS } from './spells-modules/utility-spells';
+
+export const SPELLS_DEF: Record<string, import('../types').SpellDef> = {
+  ...RAW_SPELLS,
+  ...BASIC_ELEMENTAL_SPELLS,
+  ...LIGHTNING_SPELLS,
+  ...AOE_SPELLS,
+  ...ADVANCED_SPELLS,
+  ...MASTER_SPELLS,
+  ...LEGENDARY_SPELLS,
+  ...ENCHANTMENT_SPELLS,
+  ...COMPOUND_SPELLS,
+  ...UTILITY_SPELLS,
 };

src/lib/game/crafting-actions.ts

@@ -1,513 +0,0 @@
-// ─── Crafting Action Implementations ──────────────────────────────────────────
-// Action implementations for crafting-slice.ts. Extracted to keep main slice focused.
-// These functions implement the CraftingActions interface defined in crafting-slice.ts
-
-import type { GameState, EquipmentInstance, AppliedEnchantment, EnchantmentDesign, DesignEffect, EquipmentCraftingProgress, LootInventory, AttunementState } from './types';
-import { EQUIPMENT_TYPES, type EquipmentSlot } from './data/equipment';
-import { ENCHANTMENT_EFFECTS } from './data/enchantment-effects';
-import { CRAFTING_RECIPES } from './data/crafting-recipes';
-import { computeEffects } from './upgrade-effects';
-import { hasSpecial, SPECIAL_EFFECTS } from './special-effects';
-
-import * as CraftingUtils from './crafting-utils';
-import * as CraftingDesign from './crafting-design';
-import * as CraftingPrep from './crafting-prep';
-import * as CraftingApply from './crafting-apply';
-import * as CraftingEquipment from './crafting-equipment';
-import * as CraftingLoot from './crafting-loot';
-import * as CraftingAttunements from './crafting-attunements';
-
-// ─── Equipment Management Actions ────────────────────────────────────────────
-
-// Create equipment instance
-export function createEquipmentInstance(
-  typeId: string,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-): string | null {
-  const type = CraftingUtils.getEquipmentType(typeId);
-  if (!type) return null;
-
-  const instanceId = CraftingUtils.generateInstanceId();
-  const instance: EquipmentInstance = {
-    instanceId,
-    typeId,
-    name: type.name,
-    enchantments: [],
-    usedCapacity: 0,
-    totalCapacity: type.baseCapacity,
-    rarity: 'common',
-    quality: 100,
-    tags: [],
-  };
-
-  set((state) => ({
-    equipmentInstances: {
-      ...state.equipmentInstances,
-      [instanceId]: instance,
-    },
-  }));
-
-  return instanceId;
-}
-
-// Equip item
-export function equipItem(
-  instanceId: string,
-  slot: EquipmentSlot,
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-): boolean {
-  const state = get();
-  const instance = state.equipmentInstances[instanceId];
-  if (!instance) return false;
-
-  if (!CraftingUtils.canEquipInSlot(instance, slot, state.equippedInstances)) {
-    return false;
-  }
-
-  let newEquipped = { ...state.equippedInstances };
-  for (const [s, id] of Object.entries(newEquipped)) {
-    if (id === instanceId) {
-      newEquipped[s as EquipmentSlot] = null;
-    }
-  }
-
-  newEquipped[slot] = instanceId;
-
-  if (CraftingUtils.isTwoHanded(instance.typeId) && slot === 'mainHand') {
-    newEquipped.offHand = null;
-  }
-
-  set(() => ({ equippedInstances: newEquipped }));
-  return true;
-}
-
-// Unequip item
-export function unequipItem(
-  slot: EquipmentSlot,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  set((state) => ({
-    equippedInstances: {
-      ...state.equippedInstances,
-      [slot]: null,
-    },
-  }));
-}
-
-// Delete equipment instance
-export function deleteEquipmentInstance(
-  instanceId: string,
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  const state = get();
-  let newEquipped = { ...state.equippedInstances };
-  for (const [slot, id] of Object.entries(newEquipped)) {
-    if (id === instanceId) {
-      newEquipped[slot as EquipmentSlot] = null;
-    }
-  }
-
-  const newInstances = { ...state.equipmentInstances };
-  delete newInstances[instanceId];
-
-  set(() => ({
-    equippedInstances: newEquipped,
-    equipmentInstances: newInstances,
-  }));
-}
-
-// ─── Enchantment Design Actions ────────────────────────────────────────────
-
-export function startDesigningEnchantment(
-  name: string,
-  equipmentTypeId: string,
-  effects: DesignEffect[],
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-): boolean {
-  const state = get();
-  const enchantingLevel = state.skills.enchanting || 0;
-  const validation = CraftingDesign.validateDesignEffects(
-    effects,
-    equipmentTypeId,
-    enchantingLevel
-  );
-  if (!validation.valid) return false;
-
-  const equipType = CraftingUtils.getEquipmentType(equipmentTypeId);
-  if (!equipType) return false;
-
-  const efficiencyBonus = ((state.skillUpgrades || {})['efficientEnchant'] || [])?.length * 0.05 || 0;
-  const totalCapacityCost = CraftingDesign.calculateDesignCapacityCost(effects, efficiencyBonus);
-
-  if (totalCapacityCost > equipType.baseCapacity) {
-    return false;
-  }
-
-  const computedEffects = computeEffects(state.skillUpgrades || {}, state.skillTiers || {});
-  const hasEnchantMastery = hasSpecial(computedEffects, SPECIAL_EFFECTS.ENCHANT_MASTERY);
-
-  let updates: any = {};
-
-  if (!state.designProgress) {
-    updates = {
-      currentAction: 'design' as const,
-      designProgress: {
-        designId: CraftingUtils.generateDesignId(),
-        progress: 0,
-        required: CraftingDesign.calculateDesignTime(effects),
-        name,
-        equipmentType: equipmentTypeId,
-        effects,
-      },
-    };
-  } else if (hasEnchantMastery && !state.designProgress2) {
-    updates = {
-      designProgress2: {
-        designId: CraftingUtils.generateDesignId(),
-        progress: 0,
-        required: CraftingDesign.calculateDesignTime(effects),
-        name,
-        equipmentType: equipmentTypeId,
-        effects,
-      },
-    };
-  } else {
-    return false;
-  }
-
-  set(() => updates);
-  return true;
-}
-
-export function cancelDesign(
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  const state = get();
-  if (state.designProgress2 && !state.designProgress) {
-    set(() => ({ designProgress2: null }));
-  } else {
-    set(() => ({
-      currentAction: 'meditate' as const,
-      designProgress: null,
-    }));
-  }
-}
-
-export function saveDesign(
-  design: EnchantmentDesign,
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  const state = get();
-  if (state.designProgress2 && state.designProgress2.designId === design.id) {
-    set((state) => ({
-      enchantmentDesigns: [...state.enchantmentDesigns, design],
-      designProgress2: null,
-    }));
-  } else {
-    set((state) => ({
-      enchantmentDesigns: [...state.enchantmentDesigns, design],
-      designProgress: null,
-      currentAction: 'meditate' as const,
-    }));
-  }
-}
-
-export function deleteDesign(
-  designId: string,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  set((state) => ({
-    enchantmentDesigns: state.enchantmentDesigns.filter(d => d.id !== designId),
-  }));
-}
-
-// ─── Enchantment Preparation Actions ────────────────────────────────────────
-
-export function startPreparing(
-  equipmentInstanceId: string,
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-): boolean {
-  const state = get();
-  const instance = state.equipmentInstances[equipmentInstanceId];
-
-  const validation = CraftingPrep.canPrepareEquipment(
-    instance,
-    instance?.tags || []
-  );
-  if (!validation.canPrepare) return false;
-
-  if (!instance) return false;
-
-  const costs = CraftingPrep.calculatePreparationCosts(instance.totalCapacity);
-
-  if (state.rawMana < costs.manaTotal) return false;
-
-  set(() => ({
-    currentAction: 'prepare' as const,
-    preparationProgress: CraftingPrep.initializePreparationProgress(
-      equipmentInstanceId,
-      instance.totalCapacity
-    ),
-  }));
-
-  return true;
-}
-
-export function cancelPreparation(
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  set(() => ({
-    currentAction: 'meditate' as const,
-    preparationProgress: null,
-  }));
-}
-
-// ─── Enchantment Application Actions ────────────────────────────────────────
-
-export function startApplying(
-  equipmentInstanceId: string,
-  designId: string,
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-): boolean {
-  const state = get();
-  const instance = state.equipmentInstances[equipmentInstanceId];
-  const design = state.enchantmentDesigns.find(d => d.id === designId);
-
-  const validation = CraftingApply.canApplyEnchantment(
-    instance,
-    design,
-    state.currentAction
-  );
-  if (!validation.canApply) return false;
-
-  set(() => ({
-    currentAction: 'enchant' as const,
-    applicationProgress: CraftingApply.initializeApplicationProgress(
-      equipmentInstanceId,
-      designId,
-      design!
-    ),
-  }));
-
-  return true;
-}
-
-export function pauseApplication(
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  set((state) => {
-    if (!state.applicationProgress) return {};
-    return {
-      applicationProgress: {
-        ...state.applicationProgress,
-        paused: true,
-      },
-    };
-  });
-}
-
-export function resumeApplication(
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  set((state) => {
-    if (!state.applicationProgress) return {};
-    return {
-      applicationProgress: {
-        ...state.applicationProgress,
-        paused: false,
-      },
-    };
-  });
-}
-
-export function cancelApplication(
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  set(() => ({
-    currentAction: 'meditate' as const,
-    applicationProgress: null,
-  }));
-}
-
-// ─── Disenchanting Actions ─────────────────────────────────────────────────
-
-export function disenchantEquipment(
-  instanceId: string,
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  const state = get();
-  const instance = state.equipmentInstances[instanceId];
-  if (!instance || instance.enchantments.length === 0) return;
-
-  const disenchantLevel = 0;
-  const recoveryRate = 0.1 + disenchantLevel * 0.2;
-
-  let totalRecovered = 0;
-  for (const ench of instance.enchantments) {
-    totalRecovered += Math.floor(ench.actualCost * recoveryRate);
-  }
-
-  set((state) => ({
-    rawMana: state.rawMana + totalRecovered,
-    equipmentInstances: {
-      ...state.equipmentInstances,
-      [instanceId]: {
-        ...instance,
-        enchantments: [],
-        usedCapacity: 0,
-      },
-    },
-    log: [`✨ Disenchanted ${instance.name}, recovered ${totalRecovered} mana.`, ...state.log.slice(0, 49)],
-  }));
-}
-
-// ─── Equipment Crafting Actions ────────────────────────────────────────────
-
-export function startCraftingEquipment(
-  blueprintId: string,
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-): boolean {
-  const state = get();
-
-  const check = CraftingEquipment.canStartEquipmentCrafting(
-    blueprintId,
-    state.lootInventory.blueprints.includes(blueprintId),
-    state.lootInventory.materials,
-    state.rawMana,
-    state.currentAction
-  );
-
-  if (!check.canCraft) return false;
-
-  const result = CraftingEquipment.initializeEquipmentCrafting(
-    blueprintId,
-    state.lootInventory.materials,
-    state.rawMana
-  );
-
-  set((state) => ({
-    lootInventory: {
-      ...state.lootInventory,
-      materials: result.newMaterials,
-    },
-    rawMana: state.rawMana - result.manaCost,
-    currentAction: 'craft' as const,
-    equipmentCraftingProgress: result.progress,
-  }));
-
-  return true;
-}
-
-export function cancelEquipmentCrafting(
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  set((state) => {
-    const progress = state.equipmentCraftingProgress;
-    if (!progress) return { currentAction: 'meditate' as const, equipmentCraftingProgress: null };
-
-    const cancelResult = CraftingEquipment.cancelEquipmentCrafting(
-      progress.blueprintId,
-      progress.manaSpent
-    );
-
-    return {
-      currentAction: 'meditate' as const,
-      equipmentCraftingProgress: null,
-      rawMana: state.rawMana + cancelResult.manaRefund,
-      log: [cancelResult.logMessage, ...state.log.slice(0, 49)],
-    };
-  });
-}
-
-export function deleteMaterial(
-  materialId: string,
-  amount: number,
-  get: () => GameState,
-  set: (fn: (state: GameState) => Partial<GameState>) => void
-) {
-  set((state) => {
-    const newMaterials = { ...state.lootInventory.materials };
-    const currentAmount = newMaterials[materialId] || 0;
-    const newAmount = Math.max(0, currentAmount - amount);
-
-    if (newAmount <= 0) {
-      delete newMaterials[materialId];
-    } else {
-      newMaterials[materialId] = newAmount;
-    }
-
-    return {
-      lootInventory: {
-        ...state.lootInventory,
-        materials: newMaterials,
-      },
-      log: [`🗑️ Deleted ${amount}x ${materialId}.`, ...state.log.slice(0, 49)],
-    };
-  });
-}
-
-// ─── Computed Getters ──────────────────────────────────────────────────────
-
-export function getEquipmentSpells(get: () => GameState): string[] {
-  const state = get();
-  const spells: string[] = [];
-
-  for (const instanceId of Object.values(state.equippedInstances)) {
-    if (!instanceId) continue;
-    const instance = state.equipmentInstances[instanceId];
-    if (!instance) continue;
-
-    for (const ench of instance.enchantments) {
-      const effectDef = ENCHANTMENT_EFFECTS[ench.effectId];
-      if (effectDef?.effect.type === 'spell' && effectDef.effect.spellId) {
-        spells.push(effectDef.effect.spellId);
-      }
-    }
-  }
-
-  return [...new Set(spells)];
-}
-
-export function getEquipmentEffects(get: () => GameState): Record<string, number> {
-  const state = get();
-  const effects: Record<string, number> = {};
-
-  for (const instanceId of Object.values(state.equippedInstances)) {
-    if (!instanceId) continue;
-    const instance = state.equipmentInstances[instanceId];
-    if (!instance) continue;
-
-    for (const ench of instance.enchantments) {
-      const effectDef = ENCHANTMENT_EFFECTS[ench.effectId];
-      if (!effectDef) continue;
-
-      if (effectDef.effect.type === 'bonus' && effectDef.effect.stat && effectDef.effect.value) {
-        effects[effectDef.effect.stat] = (effects[effectDef.effect.stat] || 0) + effectDef.effect.value * ench.stacks;
-      }
-    }
-  }
-
-  return effects;
-}
-
-export function getAvailableCapacity(
-  instanceId: string,
-  get: () => GameState
-): number {
-  const state = get();
-  const instance = state.equipmentInstances[instanceId];
-  if (!instance) return 0;
-  return instance.totalCapacity - instance.usedCapacity;
-}

src/lib/game/crafting-actions/application-actions.ts

@@ -0,0 +1,72 @@
+// ─── Enchantment Application Actions ────────────────────────────────────────
+
+import type { GameState } from '../types';
+import * as CraftingApply from '../crafting-apply';
+
+export function startApplying(
+  equipmentInstanceId: string,
+  designId: string,
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+): boolean {
+  const state = get();
+  const instance = state.equipmentInstances[equipmentInstanceId];
+  const design = state.enchantmentDesigns.find(d => d.id === designId);
+
+  const validation = CraftingApply.canApplyEnchantment(
+    instance,
+    design,
+    state.currentAction
+  );
+  if (!validation.canApply) return false;
+
+  set(() => ({
+    currentAction: 'enchant' as const,
+    applicationProgress: CraftingApply.initializeApplicationProgress(
+      equipmentInstanceId,
+      designId,
+      design!
+    ),
+  }));
+
+  return true;
+}
+
+export function pauseApplication(
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  set((state) => {
+    if (!state.applicationProgress) return {};
+    return {
+      applicationProgress: {
+        ...state.applicationProgress,
+        paused: true,
+      },
+    };
+  });
+}
+
+export function resumeApplication(
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  set((state) => {
+    if (!state.applicationProgress) return {};
+    return {
+      applicationProgress: {
+        ...state.applicationProgress,
+        paused: false,
+      },
+    };
+  });
+}
+
+export function cancelApplication(
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  set(() => ({
+    currentAction: 'meditate' as const,
+    applicationProgress: null,
+  }));
+}

src/lib/game/crafting-actions/computed-getters.ts

@@ -0,0 +1,56 @@
+// ─── Computed Getters ──────────────────────────────────────────────────────
+
+import type { GameState } from '../types';
+import { ENCHANTMENT_EFFECTS } from '../data/enchantment-effects';
+
+export function getEquipmentSpells(get: () => GameState): string[] {
+  const state = get();
+  const spells: string[] = [];
+
+  for (const instanceId of Object.values(state.equippedInstances)) {
+    if (!instanceId) continue;
+    const instance = state.equipmentInstances[instanceId];
+    if (!instance) continue;
+
+    for (const ench of instance.enchantments) {
+      const effectDef = ENCHANTMENT_EFFECTS[ench.effectId];
+      if (effectDef?.effect.type === 'spell' && effectDef.effect.spellId) {
+        spells.push(effectDef.effect.spellId);
+      }
+    }
+  }
+
+  return [...new Set(spells)];
+}
+
+export function getEquipmentEffects(get: () => GameState): Record<string, number> {
+  const state = get();
+  const effects: Record<string, number> = {};
+
+  for (const instanceId of Object.values(state.equippedInstances)) {
+    if (!instanceId) continue;
+    const instance = state.equipmentInstances[instanceId];
+    if (!instance) continue;
+
+    for (const ench of instance.enchantments) {
+      const effectDef = ENCHANTMENT_EFFECTS[ench.effectId];
+      if (!effectDef) continue;
+
+      if (effectDef.effect.type === 'bonus' && effectDef.effect.stat && effectDef.effect.value) {
+        effects[effectDef.effect.stat] = (effects[effectDef.effect.stat] || 0) + effectDef.effect.value * ench.stacks;
+      }
+    }
+  }
+
+  return effects;
+}
+
+export function getAvailableCapacity(
+  instanceId: string,
+  get: () => GameState
+): number {
+  const state = get();
+  const instance = state.equipmentInstances[instanceId];
+  if (!instance) return 0;
+  return instance.totalCapacity - instance.usedCapacity;
+}

src/lib/game/crafting-actions/crafting-equipment-actions.ts

@@ -0,0 +1,89 @@
+// ─── Equipment Crafting Actions ────────────────────────────────────────────
+
+import type { GameState } from '../types';
+import * as CraftingEquipment from '../crafting-equipment';
+
+export function startCraftingEquipment(
+  blueprintId: string,
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+): boolean {
+  const state = get();
+
+  const check = CraftingEquipment.canStartEquipmentCrafting(
+    blueprintId,
+    state.lootInventory.blueprints.includes(blueprintId),
+    state.lootInventory.materials,
+    state.rawMana,
+    state.currentAction
+  );
+
+  if (!check.canCraft) return false;
+
+  const result = CraftingEquipment.initializeEquipmentCrafting(
+    blueprintId,
+    state.lootInventory.materials,
+    state.rawMana
+  );
+
+  set((state) => ({
+    lootInventory: {
+      ...state.lootInventory,
+      materials: result.newMaterials,
+    },
+    rawMana: state.rawMana - result.manaCost,
+    currentAction: 'craft' as const,
+    equipmentCraftingProgress: result.progress,
+  }));
+
+  return true;
+}
+
+export function cancelEquipmentCrafting(
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  set((state) => {
+    const progress = state.equipmentCraftingProgress;
+    if (!progress) return { currentAction: 'meditate' as const, equipmentCraftingProgress: null };
+
+    const cancelResult = CraftingEquipment.cancelEquipmentCrafting(
+      progress.blueprintId,
+      progress.manaSpent
+    );
+
+    return {
+      currentAction: 'meditate' as const,
+      equipmentCraftingProgress: null,
+      rawMana: state.rawMana + cancelResult.manaRefund,
+      log: [cancelResult.logMessage, ...state.log.slice(0, 49)],
+    };
+  });
+}
+
+export function deleteMaterial(
+  materialId: string,
+  amount: number,
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  set((state) => {
+    const newMaterials = { ...state.lootInventory.materials };
+    const currentAmount = newMaterials[materialId] || 0;
+    const newAmount = Math.max(0, currentAmount - amount);
+
+    if (newAmount <= 0) {
+      delete newMaterials[materialId];
+    } else {
+      newMaterials[materialId] = newAmount;
+    }
+
+    return {
+      lootInventory: {
+        ...state.lootInventory,
+        materials: newMaterials,
+      },
+      log: [`🗑️ Deleted ${amount}x ${materialId}.`, ...state.log.slice(0, 49)],
+    };
+  });
+}

src/lib/game/crafting-actions/design-actions.ts

@@ -0,0 +1,113 @@
+// ─── Enchantment Design Actions ────────────────────────────────────────────
+
+import type { GameState, EnchantmentDesign, DesignEffect } from '../types';
+import * as CraftingUtils from '../crafting-utils';
+import * as CraftingDesign from '../crafting-design';
+import { computeEffects } from '../upgrade-effects';
+import { hasSpecial, SPECIAL_EFFECTS } from '../special-effects';
+
+export function startDesigningEnchantment(
+  name: string,
+  equipmentTypeId: string,
+  effects: DesignEffect[],
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+): boolean {
+  const state = get();
+  const enchantingLevel = state.skills.enchanting || 0;
+  const validation = CraftingDesign.validateDesignEffects(
+    effects,
+    equipmentTypeId,
+    enchantingLevel
+  );
+  if (!validation.valid) return false;
+
+  const equipType = CraftingUtils.getEquipmentType(equipmentTypeId);
+  if (!equipType) return false;
+
+  const efficiencyBonus = ((state.skillUpgrades || {})['efficientEnchant'] || [])?.length * 0.05 || 0;
+  const totalCapacityCost = CraftingDesign.calculateDesignCapacityCost(effects, efficiencyBonus);
+
+  if (totalCapacityCost > equipType.baseCapacity) {
+    return false;
+  }
+
+  const computedEffects = computeEffects(state.skillUpgrades || {}, state.skillTiers || {});
+  const hasEnchantMastery = hasSpecial(computedEffects, SPECIAL_EFFECTS.ENCHANT_MASTERY);
+
+  let updates: any = {};
+
+  if (!state.designProgress) {
+    updates = {
+      currentAction: 'design' as const,
+      designProgress: {
+        designId: CraftingUtils.generateDesignId(),
+        progress: 0,
+        required: CraftingDesign.calculateDesignTime(effects),
+        name,
+        equipmentType: equipmentTypeId,
+        effects,
+      },
+    };
+  } else if (hasEnchantMastery && !state.designProgress2) {
+    updates = {
+      designProgress2: {
+        designId: CraftingUtils.generateDesignId(),
+        progress: 0,
+        required: CraftingDesign.calculateDesignTime(effects),
+        name,
+        equipmentType: equipmentTypeId,
+        effects,
+      },
+    };
+  } else {
+    return false;
+  }
+
+  set(() => updates);
+  return true;
+}
+
+export function cancelDesign(
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  const state = get();
+  if (state.designProgress2 && !state.designProgress) {
+    set(() => ({ designProgress2: null }));
+  } else {
+    set(() => ({
+      currentAction: 'meditate' as const,
+      designProgress: null,
+    }));
+  }
+}
+
+export function saveDesign(
+  design: EnchantmentDesign,
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  const state = get();
+  if (state.designProgress2 && state.designProgress2.designId === design.id) {
+    set((state) => ({
+      enchantmentDesigns: [...state.enchantmentDesigns, design],
+      designProgress2: null,
+    }));
+  } else {
+    set((state) => ({
+      enchantmentDesigns: [...state.enchantmentDesigns, design],
+      designProgress: null,
+      currentAction: 'meditate' as const,
+    }));
+  }
+}
+
+export function deleteDesign(
+  designId: string,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  set((state) => ({
+    enchantmentDesigns: state.enchantmentDesigns.filter(d => d.id !== designId),
+  }));
+}

src/lib/game/crafting-actions/disenchant-actions.ts

@@ -0,0 +1,34 @@
+// ─── Disenchanting Actions ─────────────────────────────────────────────────
+
+import type { GameState, EquipmentInstance } from '../types';
+
+export function disenchantEquipment(
+  instanceId: string,
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  const state = get();
+  const instance = state.equipmentInstances[instanceId];
+  if (!instance || instance.enchantments.length === 0) return;
+
+  const disenchantLevel = 0;
+  const recoveryRate = 0.1 + disenchantLevel * 0.2;
+
+  let totalRecovered = 0;
+  for (const ench of instance.enchantments) {
+    totalRecovered += Math.floor(ench.actualCost * recoveryRate);
+  }
+
+  set((state) => ({
+    rawMana: state.rawMana + totalRecovered,
+    equipmentInstances: {
+      ...state.equipmentInstances,
+      [instanceId]: {
+        ...instance,
+        enchantments: [],
+        usedCapacity: 0,
+      },
+    },
+    log: [`✨ Disenchanted ${instance.name}, recovered ${totalRecovered} mana.`, ...state.log.slice(0, 49)],
+  }));
+}

src/lib/game/crafting-actions/equipment-actions.ts

@@ -0,0 +1,103 @@
+// ─── Equipment Management Actions ────────────────────────────────────────────
+
+import type { GameState, EquipmentInstance, EquipmentSlot } from '../types';
+import * as CraftingUtils from '../crafting-utils';
+
+// Create equipment instance
+export function createEquipmentInstance(
+  typeId: string,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+): string | null {
+  const type = CraftingUtils.getEquipmentType(typeId);
+  if (!type) return null;
+
+  const instanceId = CraftingUtils.generateInstanceId();
+  const instance: EquipmentInstance = {
+    instanceId,
+    typeId,
+    name: type.name,
+    enchantments: [],
+    usedCapacity: 0,
+    totalCapacity: type.baseCapacity,
+    rarity: 'common',
+    quality: 100,
+    tags: [],
+  };
+
+  set((state) => ({
+    equipmentInstances: {
+      ...state.equipmentInstances,
+      [instanceId]: instance,
+    },
+  }));
+
+  return instanceId;
+}
+
+// Equip item
+export function equipItem(
+  instanceId: string,
+  slot: EquipmentSlot,
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+): boolean {
+  const state = get();
+  const instance = state.equipmentInstances[instanceId];
+  if (!instance) return false;
+
+  if (!CraftingUtils.canEquipInSlot(instance, slot, state.equippedInstances)) {
+    return false;
+  }
+
+  let newEquipped = { ...state.equippedInstances };
+  for (const [s, id] of Object.entries(newEquipped)) {
+    if (id === instanceId) {
+      newEquipped[s as EquipmentSlot] = null;
+    }
+  }
+
+  newEquipped[slot] = instanceId;
+
+  if (CraftingUtils.isTwoHanded(instance.typeId) && slot === 'mainHand') {
+    newEquipped.offHand = null;
+  }
+
+  set(() => ({ equippedInstances: newEquipped }));
+  return true;
+}
+
+// Unequip item
+export function unequipItem(
+  slot: EquipmentSlot,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  set((state) => ({
+    equippedInstances: {
+      ...state.equippedInstances,
+      [slot]: null,
+    },
+  }));
+}
+
+// Delete equipment instance
+export function deleteEquipmentInstance(
+  instanceId: string,
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  const state = get();
+  let newEquipped = { ...state.equippedInstances };
+  for (const [slot, id] of Object.entries(newEquipped)) {
+    if (id === instanceId) {
+      newEquipped[slot as EquipmentSlot] = null;
+    }
+  }
+
+  const newInstances = { ...state.equipmentInstances };
+  delete newInstances[instanceId];
+
+  set(() => ({
+    equippedInstances: newEquipped,
+    equipmentInstances: newInstances,
+  }));
+}

src/lib/game/crafting-actions/index.ts

@@ -0,0 +1,11 @@
+// ─── Crafting Action Implementations ──────────────────────────────────────────
+// Modular structure for crafting actions
+// Re-exports from the split modules
+
+export { createEquipmentInstance, equipItem, unequipItem, deleteEquipmentInstance } from './equipment-actions';
+export { startDesigningEnchantment, cancelDesign, saveDesign, deleteDesign } from './design-actions';
+export { startPreparing, cancelPreparation } from './preparation-actions';
+export { startApplying, pauseApplication, resumeApplication, cancelApplication } from './application-actions';
+export { disenchantEquipment } from './disenchant-actions';
+export { startCraftingEquipment, cancelEquipmentCrafting, deleteMaterial } from './crafting-equipment-actions';
+export { getEquipmentSpells, getEquipmentEffects, getAvailableCapacity } from './computed-getters';

src/lib/game/crafting-actions/preparation-actions.ts

@@ -0,0 +1,44 @@
+// ─── Enchantment Preparation Actions ────────────────────────────────────────
+
+import type { GameState } from '../types';
+import * as CraftingPrep from '../crafting-prep';
+
+export function startPreparing(
+  equipmentInstanceId: string,
+  get: () => GameState,
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+): boolean {
+  const state = get();
+  const instance = state.equipmentInstances[equipmentInstanceId];
+
+  const validation = CraftingPrep.canPrepareEquipment(
+    instance,
+    instance?.tags || []
+  );
+  if (!validation.canPrepare) return false;
+
+  if (!instance) return false;
+
+  const costs = CraftingPrep.calculatePreparationCosts(instance.totalCapacity);
+
+  if (state.rawMana < costs.manaTotal) return false;
+
+  set(() => ({
+    currentAction: 'prepare' as const,
+    preparationProgress: CraftingPrep.initializePreparationProgress(
+      equipmentInstanceId,
+      instance.totalCapacity
+    ),
+  }));
+
+  return true;
+}
+
+export function cancelPreparation(
+  set: (fn: (state: GameState) => Partial<GameState>) => void
+) {
+  set(() => ({
+    currentAction: 'meditate' as const,
+    preparationProgress: null,
+  }));
+}

src/lib/game/data/enchantments/spell-effects.ts

@@ -1,473 +0,0 @@
-// ─── Spell Enchantment Effects ────────────────────────────────────────────────
-// All spell-related enchantment effects that can be applied to equipment
-
-import type { EquipmentCategory } from '../equipment'
-import type { EnchantmentEffectDef } from '../enchantment-types'
-
-// Helper to define allowed equipment categories for each effect type
-const ALL_CASTER: EquipmentCategory[] = ['caster']
-
-export const SPELL_EFFECTS: Record<string, EnchantmentEffectDef> = {
-  // ═══════════════════════════════════════════════════════════════════════════
-  // SPELL EFFECTS - Only for CASTER equipment (staves, wands, rods, orbs)
-  // ═══════════════════════════════════════════════════════════════════════════
-  
-  // Tier 0 - Basic Spells
-  spell_manaBolt: {
-    id: 'spell_manaBolt',
-    name: 'Mana Bolt',
-    description: 'Grants the ability to cast Mana Bolt (5 base damage, raw mana cost)',
-    category: 'spell',
-    baseCapacityCost: 50,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'manaBolt' }
-  },
-  spell_manaStrike: {
-    id: 'spell_manaStrike',
-    name: 'Mana Strike',
-    description: 'Grants the ability to cast Mana Strike (8 base damage, raw mana cost)',
-    category: 'spell',
-    baseCapacityCost: 40,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'manaStrike' }
-  },
-
-  // Tier 1 - Basic Elemental Spells
-  spell_fireball: {
-    id: 'spell_fireball',
-    name: 'Fireball',
-    description: 'Grants the ability to cast Fireball (15 fire damage)',
-    category: 'spell',
-    baseCapacityCost: 80,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'fireball' }
-  },
-  spell_emberShot: {
-    id: 'spell_emberShot',
-    name: 'Ember Shot',
-    description: 'Grants the ability to cast Ember Shot (10 fire damage, fast cast)',
-    category: 'spell',
-    baseCapacityCost: 60,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'emberShot' }
-  },
-  spell_waterJet: {
-    id: 'spell_waterJet',
-    name: 'Water Jet',
-    description: 'Grants the ability to cast Water Jet (12 water damage)',
-    category: 'spell',
-    baseCapacityCost: 70,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'waterJet' }
-  },
-  spell_iceShard: {
-    id: 'spell_iceShard',
-    name: 'Ice Shard',
-    description: 'Grants the ability to cast Ice Shard (14 water damage)',
-    category: 'spell',
-    baseCapacityCost: 75,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'iceShard' }
-  },
-  spell_gust: {
-    id: 'spell_gust',
-    name: 'Gust',
-    description: 'Grants the ability to cast Gust (10 air damage, fast cast)',
-    category: 'spell',
-    baseCapacityCost: 60,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'gust' }
-  },
-  spell_stoneBullet: {
-    id: 'spell_stoneBullet',
-    name: 'Stone Bullet',
-    description: 'Grants the ability to cast Stone Bullet (16 earth damage)',
-    category: 'spell',
-    baseCapacityCost: 80,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'stoneBullet' }
-  },
-  spell_lightLance: {
-    id: 'spell_lightLance',
-    name: 'Light Lance',
-    description: 'Grants the ability to cast Light Lance (18 light damage)',
-    category: 'spell',
-    baseCapacityCost: 95,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'lightLance' }
-  },
-  spell_shadowBolt: {
-    id: 'spell_shadowBolt',
-    name: 'Shadow Bolt',
-    description: 'Grants the ability to cast Shadow Bolt (16 dark damage)',
-    category: 'spell',
-    baseCapacityCost: 95,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'shadowBolt' }
-  },
-  spell_drain: {
-    id: 'spell_drain',
-    name: 'Drain',
-    description: 'Grants the ability to cast Drain (10 death damage)',
-    category: 'spell',
-    baseCapacityCost: 85,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'drain' }
-  },
-
-  // Tier 2 - Advanced Spells
-  spell_inferno: {
-    id: 'spell_inferno',
-    name: 'Inferno',
-    description: 'Grants the ability to cast Inferno (60 fire damage)',
-    category: 'spell',
-    baseCapacityCost: 180,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'inferno' }
-  },
-  spell_tidalWave: {
-    id: 'spell_tidalWave',
-    name: 'Tidal Wave',
-    description: 'Grants the ability to cast Tidal Wave (55 water damage)',
-    category: 'spell',
-    baseCapacityCost: 175,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'tidalWave' }
-  },
-  spell_hurricane: {
-    id: 'spell_hurricane',
-    name: 'Hurricane',
-    description: 'Grants the ability to cast Hurricane (50 air damage)',
-    category: 'spell',
-    baseCapacityCost: 170,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'hurricane' }
-  },
-  spell_earthquake: {
-    id: 'spell_earthquake',
-    name: 'Earthquake',
-    description: 'Grants the ability to cast Earthquake (70 earth damage)',
-    category: 'spell',
-    baseCapacityCost: 200,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'earthquake' }
-  },
-  spell_solarFlare: {
-    id: 'spell_solarFlare',
-    name: 'Solar Flare',
-    description: 'Grants the ability to cast Solar Flare (65 light damage)',
-    category: 'spell',
-    baseCapacityCost: 190,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'solarFlare' }
-  },
-  spell_voidRift: {
-    id: 'spell_voidRift',
-    name: 'Void Rift',
-    description: 'Grants the ability to cast Void Rift (55 dark damage)',
-    category: 'spell',
-    baseCapacityCost: 175,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'voidRift' }
-  },
-
-  // Additional Tier 1 Spells
-  spell_windSlash: {
-    id: 'spell_windSlash',
-    name: 'Wind Slash',
-    description: 'Grants the ability to cast Wind Slash (12 air damage)',
-    category: 'spell',
-    baseCapacityCost: 72,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'windSlash' }
-  },
-  spell_rockSpike: {
-    id: 'spell_rockSpike',
-    name: 'Rock Spike',
-    description: 'Grants the ability to cast Rock Spike (18 earth damage)',
-    category: 'spell',
-    baseCapacityCost: 88,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'rockSpike' }
-  },
-  spell_radiance: {
-    id: 'spell_radiance',
-    name: 'Radiance',
-    description: 'Grants the ability to cast Radiance (14 light damage)',
-    category: 'spell',
-    baseCapacityCost: 80,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'radiance' }
-  },
-  spell_darkPulse: {
-    id: 'spell_darkPulse',
-    name: 'Dark Pulse',
-    description: 'Grants the ability to cast Dark Pulse (12 dark damage)',
-    category: 'spell',
-    baseCapacityCost: 68,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'darkPulse' }
-  },
-
-  // Additional Tier 2 Spells
-  spell_flameWave: {
-    id: 'spell_flameWave',
-    name: 'Flame Wave',
-    description: 'Grants the ability to cast Flame Wave (45 fire damage)',
-    category: 'spell',
-    baseCapacityCost: 165,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'flameWave' }
-  },
-  spell_iceStorm: {
-    id: 'spell_iceStorm',
-    name: 'Ice Storm',
-    description: 'Grants the ability to cast Ice Storm (50 water damage)',
-    category: 'spell',
-    baseCapacityCost: 170,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'iceStorm' }
-  },
-  spell_windBlade: {
-    id: 'spell_windBlade',
-    name: 'Wind Blade',
-    description: 'Grants the ability to cast Wind Blade (40 air damage)',
-    category: 'spell',
-    baseCapacityCost: 155,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'windBlade' }
-  },
-  spell_stoneBarrage: {
-    id: 'spell_stoneBarrage',
-    name: 'Stone Barrage',
-    description: 'Grants the ability to cast Stone Barrage (55 earth damage)',
-    category: 'spell',
-    baseCapacityCost: 175,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'stoneBarrage' }
-  },
-  spell_divineSmite: {
-    id: 'spell_divineSmite',
-    name: 'Divine Smite',
-    description: 'Grants the ability to cast Divine Smite (55 light damage)',
-    category: 'spell',
-    baseCapacityCost: 175,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'divineSmite' }
-  },
-  spell_shadowStorm: {
-    id: 'spell_shadowStorm',
-    name: 'Shadow Storm',
-    description: 'Grants the ability to cast Shadow Storm (48 dark damage)',
-    category: 'spell',
-    baseCapacityCost: 168,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'shadowStorm' }
-  },
-
-  // Tier 3 - Master Spells
-  spell_pyroclasm: {
-    id: 'spell_pyroclasm',
-    name: 'Pyroclasm',
-    description: 'Grants the ability to cast Pyroclasm (250 fire damage)',
-    category: 'spell',
-    baseCapacityCost: 400,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'pyroclasm' }
-  },
-  spell_tsunami: {
-    id: 'spell_tsunami',
-    name: 'Tsunami',
-    description: 'Grants the ability to cast Tsunami (220 water damage)',
-    category: 'spell',
-    baseCapacityCost: 380,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'tsunami' }
-  },
-  spell_meteorStrike: {
-    id: 'spell_meteorStrike',
-    name: 'Meteor Strike',
-    description: 'Grants the ability to cast Meteor Strike (280 earth damage)',
-    category: 'spell',
-    baseCapacityCost: 420,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'meteorStrike' }
-  },
-
-  // ═══════════════════════════════════════════════════════════════════════════
-  // LIGHTNING SPELL EFFECTS - Fast, armor-piercing, harder to dodge
-  // ═══════════════════════════════════════════════════════════════════════════
-  
-  spell_spark: {
-    id: 'spell_spark',
-    name: 'Spark',
-    description: 'Grants the ability to cast Spark (8 lightning damage, very fast, armor pierce)',
-    category: 'spell',
-    baseCapacityCost: 70,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'spark' }
-  },
-  spell_lightningBolt: {
-    id: 'spell_lightningBolt',
-    name: 'Lightning Bolt',
-    description: 'Grants the ability to cast Lightning Bolt (14 lightning damage, armor pierce)',
-    category: 'spell',
-    baseCapacityCost: 90,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'lightningBolt' }
-  },
-  spell_chainLightning: {
-    id: 'spell_chainLightning',
-    name: 'Chain Lightning',
-    description: 'Grants the ability to cast Chain Lightning (25 lightning damage, hits 3 targets)',
-    category: 'spell',
-    baseCapacityCost: 160,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'chainLightning' }
-  },
-  spell_stormCall: {
-    id: 'spell_stormCall',
-    name: 'Storm Call',
-    description: 'Grants the ability to cast Storm Call (40 lightning damage, hits 2 targets)',
-    category: 'spell',
-    baseCapacityCost: 190,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'stormCall' }
-  },
-  spell_thunderStrike: {
-    id: 'spell_thunderStrike',
-    name: 'Thunder Strike',
-    description: 'Grants the ability to cast Thunder Strike (150 lightning damage, 50% armor pierce)',
-    category: 'spell',
-    baseCapacityCost: 350,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'thunderStrike' }
-  },
-
-  // ═══════════════════════════════════════════════════════════════════════════
-  // METAL SPELL EFFECTS - Fire + Earth compound, armor pierce focus
-  // ═══════════════════════════════════════════════════════════════════════════
-  
-  spell_metalShard: {
-    id: 'spell_metalShard',
-    name: 'Metal Shard',
-    description: 'Grants the ability to cast Metal Shard (16 metal damage, 25% armor pierce)',
-    category: 'spell',
-    baseCapacityCost: 85,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'metalShard' }
-  },
-  spell_ironFist: {
-    id: 'spell_ironFist',
-    name: 'Iron Fist',
-    description: 'Grants the ability to cast Iron Fist (28 metal damage, 35% armor pierce)',
-    category: 'spell',
-    baseCapacityCost: 120,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'ironFist' }
-  },
-  spell_steelTempest: {
-    id: 'spell_steelTempest',
-    name: 'Steel Tempest',
-    description: 'Grants the ability to cast Steel Tempest (55 metal damage, 45% armor pierce)',
-    category: 'spell',
-    baseCapacityCost: 190,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'steelTempest' }
-  },
-  spell_furnaceBlast: {
-    id: 'spell_furnaceBlast',
-    name: 'Furnace Blast',
-    description: 'Grants the ability to cast Furnace Blast (200 metal damage, 60% armor pierce)',
-    category: 'spell',
-    baseCapacityCost: 400,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'furnaceBlast' }
-  },
-
-  // ═══════════════════════════════════════════════════════════════════════════
-  // SAND SPELL EFFECTS - Earth + Water compound, AOE focus
-  // ═══════════════════════════════════════════════════════════════════════════
-  
-  spell_sandBlast: {
-    id: 'spell_sandBlast',
-    name: 'Sand Blast',
-    description: 'Grants the ability to cast Sand Blast (11 sand damage, very fast)',
-    category: 'spell',
-    baseCapacityCost: 72,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'sandBlast' }
-  },
-  spell_sandstorm: {
-    id: 'spell_sandstorm',
-    name: 'Sandstorm',
-    description: 'Grants the ability to cast Sandstorm (22 sand damage, hits 2 enemies)',
-    category: 'spell',
-    baseCapacityCost: 100,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'sandstorm' }
-  },
-  spell_desertWind: {
-    id: 'spell_desertWind',
-    name: 'Desert Wind',
-    description: 'Grants the ability to cast Desert Wind (38 sand damage, hits 3 enemies)',
-    category: 'spell',
-    baseCapacityCost: 155,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'desertWind' }
-  },
-  spell_duneCollapse: {
-    id: 'spell_duneCollapse',
-    name: 'Dune Collapse',
-    description: 'Grants the ability to cast Dune Collapse (100 sand damage, hits 5 enemies)',
-    category: 'spell',
-    baseCapacityCost: 300,
-    maxStacks: 1,
-    allowedEquipmentCategories: ALL_CASTER,
-    effect: { type: 'spell', spellId: 'duneCollapse' }
-  },
-};
-
-

src/lib/game/data/enchantments/spell-effects/basic-spells.ts

@@ -0,0 +1,162 @@
+// ─── Tier 0 & 1 Basic Spells ───────────────────────────────────
+
+import type { EnchantmentEffectDef } from './types';
+import { ALL_CASTER } from './types';
+
+export const BASIC_SPELL_EFFECTS: Record<string, EnchantmentEffectDef> = {
+  // Tier 0 - Basic Spells
+  spell_manaBolt: {
+    id: 'spell_manaBolt',
+    name: 'Mana Bolt',
+    description: 'Grants the ability to cast Mana Bolt (5 base damage, raw mana cost)',
+    category: 'spell',
+    baseCapacityCost: 50,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'manaBolt' }
+  },
+  spell_manaStrike: {
+    id: 'spell_manaStrike',
+    name: 'Mana Strike',
+    description: 'Grants the ability to cast Mana Strike (8 base damage, raw mana cost)',
+    category: 'spell',
+    baseCapacityCost: 40,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'manaStrike' }
+  },
+
+  // Tier 1 - Basic Elemental Spells
+  spell_fireball: {
+    id: 'spell_fireball',
+    name: 'Fireball',
+    description: 'Grants the ability to cast Fireball (15 fire damage)',
+    category: 'spell',
+    baseCapacityCost: 80,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'fireball' }
+  },
+  spell_emberShot: {
+    id: 'spell_emberShot',
+    name: 'Ember Shot',
+    description: 'Grants the ability to cast Ember Shot (10 fire damage, fast cast)',
+    category: 'spell',
+    baseCapacityCost: 60,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'emberShot' }
+  },
+  spell_waterJet: {
+    id: 'spell_waterJet',
+    name: 'Water Jet',
+    description: 'Grants the ability to cast Water Jet (12 water damage)',
+    category: 'spell',
+    baseCapacityCost: 70,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'waterJet' }
+  },
+  spell_iceShard: {
+    id: 'spell_iceShard',
+    name: 'Ice Shard',
+    description: 'Grants the ability to cast Ice Shard (14 water damage)',
+    category: 'spell',
+    baseCapacityCost: 75,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'iceShard' }
+  },
+  spell_gust: {
+    id: 'spell_gust',
+    name: 'Gust',
+    description: 'Grants the ability to cast Gust (10 air damage, fast cast)',
+    category: 'spell',
+    baseCapacityCost: 60,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'gust' }
+  },
+  spell_stoneBullet: {
+    id: 'spell_stoneBullet',
+    name: 'Stone Bullet',
+    description: 'Grants the ability to cast Stone Bullet (16 earth damage)',
+    category: 'spell',
+    baseCapacityCost: 80,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'stoneBullet' }
+  },
+  spell_lightLance: {
+    id: 'spell_lightLance',
+    name: 'Light Lance',
+    description: 'Grants the ability to cast Light Lance (18 light damage)',
+    category: 'spell',
+    baseCapacityCost: 95,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'lightLance' }
+  },
+  spell_shadowBolt: {
+    id: 'spell_shadowBolt',
+    name: 'Shadow Bolt',
+    description: 'Grants the ability to cast Shadow Bolt (16 dark damage)',
+    category: 'spell',
+    baseCapacityCost: 95,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'shadowBolt' }
+  },
+  spell_drain: {
+    id: 'spell_drain',
+    name: 'Drain',
+    description: 'Grants the ability to cast Drain (10 death damage)',
+    category: 'spell',
+    baseCapacityCost: 85,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'drain' }
+  },
+
+  // Additional Tier 1 Spells
+  spell_windSlash: {
+    id: 'spell_windSlash',
+    name: 'Wind Slash',
+    description: 'Grants the ability to cast Wind Slash (12 air damage)',
+    category: 'spell',
+    baseCapacityCost: 72,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'windSlash' }
+  },
+  spell_rockSpike: {
+    id: 'spell_rockSpike',
+    name: 'Rock Spike',
+    description: 'Grants the ability to cast Rock Spike (18 earth damage)',
+    category: 'spell',
+    baseCapacityCost: 88,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'rockSpike' }
+  },
+  spell_radiance: {
+    id: 'spell_radiance',
+    name: 'Radiance',
+    description: 'Grants the ability to cast Radiance (14 light damage)',
+    category: 'spell',
+    baseCapacityCost: 80,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'radiance' }
+  },
+  spell_darkPulse: {
+    id: 'spell_darkPulse',
+    name: 'Dark Pulse',
+    description: 'Grants the ability to cast Dark Pulse (12 dark damage)',
+    category: 'spell',
+    baseCapacityCost: 68,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'darkPulse' }
+  },
+};

src/lib/game/data/enchantments/spell-effects/index.ts

@@ -0,0 +1,8 @@
+// ─── Spell Enchantment Effects Index ───────────────────────────────
+// Re-exports all spell effects from modular files
+
+// Re-export types
+export type { EnchantmentEffectDef, ALL_CASTER } from './types';
+
+// Re-export data
+export { SPELL_EFFECTS } from './data';

src/lib/game/data/enchantments/spell-effects/lightning-spells.ts

@@ -0,0 +1,58 @@
+// ─── Lightning Spell Effects ──────────────────────────────────
+// Lightning spells - Fast, armor-piercing, harder to dodge
+
+import type { EnchantmentEffectDef } from './types';
+import { ALL_CASTER } from './types';
+
+export const LIGHTNING_SPELL_EFFECTS: Record<string, EnchantmentEffectDef> = {
+  spell_spark: {
+    id: 'spell_spark',
+    name: 'Spark',
+    description: 'Grants the ability to cast Spark (8 lightning damage, very fast, armor pierce)',
+    category: 'spell',
+    baseCapacityCost: 70,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'spark' }
+  },
+  spell_lightningBolt: {
+    id: 'spell_lightningBolt',
+    name: 'Lightning Bolt',
+    description: 'Grants the ability to cast Lightning Bolt (14 lightning damage, armor pierce)',
+    category: 'spell',
+    baseCapacityCost: 90,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'lightningBolt' }
+  },
+  spell_chainLightning: {
+    id: 'spell_chainLightning',
+    name: 'Chain Lightning',
+    description: 'Grants the ability to cast Chain Lightning (25 lightning damage, hits 3 targets)',
+    category: 'spell',
+    baseCapacityCost: 160,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'chainLightning' }
+  },
+  spell_stormCall: {
+    id: 'spell_stormCall',
+    name: 'Storm Call',
+    description: 'Grants the ability to cast Storm Call (40 lightning damage, hits 2 targets)',
+    category: 'spell',
+    baseCapacityCost: 190,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'stormCall' }
+  },
+  spell_thunderStrike: {
+    id: 'spell_thunderStrike',
+    name: 'Thunder Strike',
+    description: 'Grants the ability to cast Thunder Strike (150 lightning damage, 50% armor pierce)',
+    category: 'spell',
+    baseCapacityCost: 350,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'thunderStrike' }
+  },
+};

src/lib/game/data/enchantments/spell-effects/metal-spells.ts

@@ -0,0 +1,48 @@
+// ─── Metal Spell Effects ──────────────────────────────────────
+// Metal spells - Fire + Earth compound, armor pierce focus
+
+import type { EnchantmentEffectDef } from './types';
+import { ALL_CASTER } from './types';
+
+export const METAL_SPELL_EFFECTS: Record<string, EnchantmentEffectDef> = {
+  spell_metalShard: {
+    id: 'spell_metalShard',
+    name: 'Metal Shard',
+    description: 'Grants the ability to cast Metal Shard (16 metal damage, 25% armor pierce)',
+    category: 'spell',
+    baseCapacityCost: 85,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'metalShard' }
+  },
+  spell_ironFist: {
+    id: 'spell_ironFist',
+    name: 'Iron Fist',
+    description: 'Grants the ability to cast Iron Fist (28 metal damage, 35% armor pierce)',
+    category: 'spell',
+    baseCapacityCost: 120,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'ironFist' }
+  },
+  spell_steelTempest: {
+    id: 'spell_steelTempest',
+    name: 'Steel Tempest',
+    description: 'Grants the ability to cast Steel Tempest (55 metal damage, 45% armor pierce)',
+    category: 'spell',
+    baseCapacityCost: 190,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'steelTempest' }
+  },
+  spell_furnaceBlast: {
+    id: 'spell_furnaceBlast',
+    name: 'Furnace Blast',
+    description: 'Grants the ability to cast Furnace Blast (200 metal damage, 60% armor pierce)',
+    category: 'spell',
+    baseCapacityCost: 400,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'furnaceBlast' }
+  },
+};

src/lib/game/data/enchantments/spell-effects/sand-spells.ts

@@ -0,0 +1,48 @@
+// ─── Sand Spell Effects ───────────────────────────────────────
+// Sand spells - Earth + Water compound, AOE focus
+
+import type { EnchantmentEffectDef } from './types';
+import { ALL_CASTER } from './types';
+
+export const SAND_SPELL_EFFECTS: Record<string, EnchantmentEffectDef> = {
+  spell_sandBlast: {
+    id: 'spell_sandBlast',
+    name: 'Sand Blast',
+    description: 'Grants the ability to cast Sand Blast (11 sand damage, very fast)',
+    category: 'spell',
+    baseCapacityCost: 72,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'sandBlast' }
+  },
+  spell_sandstorm: {
+    id: 'spell_sandstorm',
+    name: 'Sandstorm',
+    description: 'Grants the ability to cast Sandstorm (22 sand damage, hits 2 enemies)',
+    category: 'spell',
+    baseCapacityCost: 100,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'sandstorm' }
+  },
+  spell_desertWind: {
+    id: 'spell_desertWind',
+    name: 'Desert Wind',
+    description: 'Grants the ability to cast Desert Wind (38 sand damage, hits 3 enemies)',
+    category: 'spell',
+    baseCapacityCost: 155,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'desertWind' }
+  },
+  spell_duneCollapse: {
+    id: 'spell_duneCollapse',
+    name: 'Dune Collapse',
+    description: 'Grants the ability to cast Dune Collapse (100 sand damage, hits 5 enemies)',
+    category: 'spell',
+    baseCapacityCost: 300,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'duneCollapse' }
+  },
+};

src/lib/game/data/enchantments/spell-effects/tier2-spells.ts

@@ -0,0 +1,129 @@
+// ─── Tier 2 Advanced Spells ───────────────────────────────────
+
+import type { EnchantmentEffectDef } from './types';
+import { ALL_CASTER } from './types';
+
+export const TIER2_SPELL_EFFECTS: Record<string, EnchantmentEffectDef> = {
+  spell_inferno: {
+    id: 'spell_inferno',
+    name: 'Inferno',
+    description: 'Grants the ability to cast Inferno (60 fire damage)',
+    category: 'spell',
+    baseCapacityCost: 180,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'inferno' }
+  },
+  spell_tidalWave: {
+    id: 'spell_tidalWave',
+    name: 'Tidal Wave',
+    description: 'Grants the ability to cast Tidal Wave (55 water damage)',
+    category: 'spell',
+    baseCapacityCost: 175,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'tidalWave' }
+  },
+  spell_hurricane: {
+    id: 'spell_hurricane',
+    name: 'Hurricane',
+    description: 'Grants the ability to cast Hurricane (50 air damage)',
+    category: 'spell',
+    baseCapacityCost: 170,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'hurricane' }
+  },
+  spell_earthquake: {
+    id: 'spell_earthquake',
+    name: 'Earthquake',
+    description: 'Grants the ability to cast Earthquake (70 earth damage)',
+    category: 'spell',
+    baseCapacityCost: 200,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'earthquake' }
+  },
+  spell_solarFlare: {
+    id: 'spell_solarFlare',
+    name: 'Solar Flare',
+    description: 'Grants the ability to cast Solar Flare (65 light damage)',
+    category: 'spell',
+    baseCapacityCost: 190,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'solarFlare' }
+  },
+  spell_voidRift: {
+    id: 'spell_voidRift',
+    name: 'Void Rift',
+    description: 'Grants the ability to cast Void Rift (55 dark damage)',
+    category: 'spell',
+    baseCapacityCost: 175,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'voidRift' }
+  },
+
+  // Additional Tier 2 Spells
+  spell_flameWave: {
+    id: 'spell_flameWave',
+    name: 'Flame Wave',
+    description: 'Grants the ability to cast Flame Wave (45 fire damage)',
+    category: 'spell',
+    baseCapacityCost: 165,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'flameWave' }
+  },
+  spell_iceStorm: {
+    id: 'spell_iceStorm',
+    name: 'Ice Storm',
+    description: 'Grants the ability to cast Ice Storm (50 water damage)',
+    category: 'spell',
+    baseCapacityCost: 170,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'iceStorm' }
+  },
+  spell_windBlade: {
+    id: 'spell_windBlade',
+    name: 'Wind Blade',
+    description: 'Grants the ability to cast Wind Blade (40 air damage)',
+    category: 'spell',
+    baseCapacityCost: 155,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'windBlade' }
+  },
+  spell_stoneBarrage: {
+    id: 'spell_stoneBarrage',
+    name: 'Stone Barrage',
+    description: 'Grants the ability to cast Stone Barrage (55 earth damage)',
+    category: 'spell',
+    baseCapacityCost: 175,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'stoneBarrage' }
+  },
+  spell_divineSmite: {
+    id: 'spell_divineSmite',
+    name: 'Divine Smite',
+    description: 'Grants the ability to cast Divine Smite (55 light damage)',
+    category: 'spell',
+    baseCapacityCost: 175,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'divineSmite' }
+  },
+  spell_shadowStorm: {
+    id: 'spell_shadowStorm',
+    name: 'Shadow Storm',
+    description: 'Grants the ability to cast Shadow Storm (48 dark damage)',
+    category: 'spell',
+    baseCapacityCost: 168,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'shadowStorm' }
+  },
+};

src/lib/game/data/enchantments/spell-effects/tier3-spells.ts

@@ -0,0 +1,37 @@
+// ─── Tier 3 Master Spells ─────────────────────────────────────
+
+import type { EnchantmentEffectDef } from './types';
+import { ALL_CASTER } from './types';
+
+export const TIER3_SPELL_EFFECTS: Record<string, EnchantmentEffectDef> = {
+  spell_pyroclasm: {
+    id: 'spell_pyroclasm',
+    name: 'Pyroclasm',
+    description: 'Grants the ability to cast Pyroclasm (250 fire damage)',
+    category: 'spell',
+    baseCapacityCost: 400,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'pyroclasm' }
+  },
+  spell_tsunami: {
+    id: 'spell_tsunami',
+    name: 'Tsunami',
+    description: 'Grants the ability to cast Tsunami (220 water damage)',
+    category: 'spell',
+    baseCapacityCost: 380,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'tsunami' }
+  },
+  spell_meteorStrike: {
+    id: 'spell_meteorStrike',
+    name: 'Meteor Strike',
+    description: 'Grants the ability to cast Meteor Strike (280 earth damage)',
+    category: 'spell',
+    baseCapacityCost: 420,
+    maxStacks: 1,
+    allowedEquipmentCategories: ALL_CASTER,
+    effect: { type: 'spell', spellId: 'meteorStrike' }
+  },
+};

src/lib/game/data/enchantments/spell-effects/types.ts

@@ -0,0 +1,20 @@
+// ─── Spell Enchantment Effects Types ─────────────────
+
+export interface EnchantmentEffectDef {
+  id: string;
+  name: string;
+  description: string;
+  category: string;
+  baseCapacityCost: number;
+  maxStacks: number;
+  allowedEquipmentCategories: string[];
+  effect: {
+    type: string;
+    spellId?: string;
+    stat?: string;
+    value?: number;
+  };
+}
+
+// Helper to define allowed equipment categories for each effect type
+export const ALL_CASTER: string[] = ['caster']

src/lib/game/data/equipment.ts

@@ -1,497 +0,0 @@
-// ─── Equipment Types ─────────────────────────────────────────────────────────
-
-export type EquipmentSlot = 'mainHand' | 'offHand' | 'head' | 'body' | 'hands' | 'feet' | 'accessory1' | 'accessory2';
-export type EquipmentCategory = 'caster' | 'shield' | 'catalyst' | 'sword' | 'head' | 'body' | 'hands' | 'feet' | 'accessory';
-
-// All equipment slots in order
-export const EQUIPMENT_SLOTS: EquipmentSlot[] = ['mainHand', 'offHand', 'head', 'body', 'hands', 'feet', 'accessory1', 'accessory2'];
-
-// Human-readable names for equipment slots
-export const SLOT_NAMES: Record<EquipmentSlot, string> = {
-  mainHand: 'Main Hand',
-  offHand: 'Off Hand',
-  head: 'Head',
-  body: 'Body',
-  hands: 'Hands',
-  feet: 'Feet',
-  accessory1: 'Accessory 1',
-  accessory2: 'Accessory 2',
-};
-
-export interface EquipmentType {
-  id: string;
-  name: string;
-  category: EquipmentCategory;
-  slot: EquipmentSlot;
-  baseCapacity: number;
-  description: string;
-  baseDamage?: number;         // For swords
-  baseCastSpeed?: number;      // For swords (higher = faster)
-  twoHanded?: boolean;         // If true, weapon occupies both main hand and offhand slots
-}
-
-// ─── Equipment Types Definition ─────────────────────────────────────────────
-
-export const EQUIPMENT_TYPES: Record<string, EquipmentType> = {
-  // ─── Main Hand - Casters ─────────────────────────────────────────────────
-  basicStaff: {
-    id: 'basicStaff',
-    name: 'Basic Staff',
-    category: 'caster',
-    slot: 'mainHand',
-    baseCapacity: 50,
-    description: 'A simple wooden staff, basic but reliable for channeling mana.',
-    twoHanded: true,
-  },
-  apprenticeWand: {
-    id: 'apprenticeWand',
-    name: 'Apprentice Wand',
-    category: 'caster',
-    slot: 'mainHand',
-    baseCapacity: 35,
-    description: 'A lightweight wand favored by apprentices. Lower capacity but faster to prepare.',
-  },
-  oakStaff: {
-    id: 'oakStaff',
-    name: 'Oak Staff',
-    category: 'caster',
-    slot: 'mainHand',
-    baseCapacity: 65,
-    description: 'A sturdy oak staff with decent mana capacity.',
-    twoHanded: true,
-  },
-  crystalWand: {
-    id: 'crystalWand',
-    name: 'Crystal Wand',
-    category: 'caster',
-    slot: 'mainHand',
-    baseCapacity: 45,
-    description: 'A wand tipped with a small crystal. Excellent for elemental enchantments.',
-  },
-  arcanistStaff: {
-    id: 'arcanistStaff',
-    name: 'Arcanist Staff',
-    category: 'caster',
-    slot: 'mainHand',
-    baseCapacity: 80,
-    description: 'A staff designed for advanced spellcasters. High capacity for complex enchantments.',
-    twoHanded: true,
-  },
-  battlestaff: {
-    id: 'battlestaff',
-    name: 'Battlestaff',
-    category: 'caster',
-    slot: 'mainHand',
-    baseCapacity: 70,
-    description: 'A reinforced staff suitable for both casting and combat.',
-    twoHanded: true,
-  },
-  
-  // ─── Main Hand - Catalysts ────────────────────────────────────────────────
-  basicCatalyst: {
-    id: 'basicCatalyst',
-    name: 'Basic Catalyst',
-    category: 'catalyst',
-    slot: 'mainHand',
-    baseCapacity: 40,
-    description: 'A simple catalyst for amplifying magical effects.',
-  },
-  fireCatalyst: {
-    id: 'fireCatalyst',
-    name: 'Fire Catalyst',
-    category: 'catalyst',
-    slot: 'mainHand',
-    baseCapacity: 55,
-    description: 'A catalyst attuned to fire magic. Enhances fire enchantments.',
-  },
-  voidCatalyst: {
-    id: 'voidCatalyst',
-    name: 'Void Catalyst',
-    category: 'catalyst',
-    slot: 'mainHand',
-    baseCapacity: 75,
-    description: 'A rare catalyst touched by void energy. High capacity but volatile.',
-  },
-  
-  // ─── Main Hand - Magic Swords ─────────────────────────────────────────────
-  // Magic swords have low base damage but high cast speed
-  // They can be enchanted with elemental effects that use mana over time
-  ironBlade: {
-    id: 'ironBlade',
-    name: 'Iron Blade',
-    category: 'sword',
-    slot: 'mainHand',
-    baseCapacity: 30,
-    baseDamage: 3,
-    baseCastSpeed: 4,
-    description: 'A simple iron sword. Can be enchanted with elemental effects.',
-  },
-  steelBlade: {
-    id: 'steelBlade',
-    name: 'Steel Blade',
-    category: 'sword',
-    slot: 'mainHand',
-    baseCapacity: 40,
-    baseDamage: 4,
-    baseCastSpeed: 4,
-    description: 'A well-crafted steel sword. Balanced for combat and enchanting.',
-  },
-  crystalBlade: {
-    id: 'crystalBlade',
-    name: 'Crystal Blade',
-    category: 'sword',
-    slot: 'mainHand',
-    baseCapacity: 55,
-    baseDamage: 3,
-    baseCastSpeed: 5,
-    description: 'A blade made of crystallized mana. Excellent for elemental enchantments.',
-  },
-  arcanistBlade: {
-    id: 'arcanistBlade',
-    name: 'Arcanist Blade',
-    category: 'sword',
-    slot: 'mainHand',
-    baseCapacity: 65,
-    baseDamage: 5,
-    baseCastSpeed: 4,
-    description: 'A sword forged for battle mages. High capacity for powerful enchantments.',
-  },
-  voidBlade: {
-    id: 'voidBlade',
-    name: 'Void-Touched Blade',
-    category: 'sword',
-    slot: 'mainHand',
-    baseCapacity: 50,
-    baseDamage: 6,
-    baseCastSpeed: 3,
-    description: 'A blade corrupted by void energy. Powerful but consumes more mana.',
-  },
-  
-  // ─── Off Hand - Shields ───────────────────────────────────────────────────
-  basicShield: {
-    id: 'basicShield',
-    name: 'Basic Shield',
-    category: 'shield',
-    slot: 'offHand',
-    baseCapacity: 40,
-    description: 'A simple wooden shield. Provides basic protection.',
-  },
-  reinforcedShield: {
-    id: 'reinforcedShield',
-    name: 'Reinforced Shield',
-    category: 'shield',
-    slot: 'offHand',
-    baseCapacity: 55,
-    description: 'A metal-reinforced shield with enhanced durability and capacity.',
-  },
-  runicShield: {
-    id: 'runicShield',
-    name: 'Runic Shield',
-    category: 'shield',
-    slot: 'offHand',
-    baseCapacity: 70,
-    description: 'A shield engraved with protective runes. Excellent for defensive enchantments.',
-  },
-  manaShield: {
-    id: 'manaShield',
-    name: 'Mana Shield',
-    category: 'shield',
-    slot: 'offHand',
-    baseCapacity: 60,
-    description: 'A crystalline shield that can store and reflect mana.',
-  },
-  
-  // ─── Head ─────────────────────────────────────────────────────────────────
-  clothHood: {
-    id: 'clothHood',
-    name: 'Cloth Hood',
-    category: 'head',
-    slot: 'head',
-    baseCapacity: 25,
-    description: 'A simple cloth hood. Minimal protection but comfortable.',
-  },
-  apprenticeCap: {
-    id: 'apprenticeCap',
-    name: 'Apprentice Cap',
-    category: 'head',
-    slot: 'head',
-    baseCapacity: 30,
-    description: 'The traditional cap of magic apprentices.',
-  },
-  wizardHat: {
-    id: 'wizardHat',
-    name: 'Wizard Hat',
-    category: 'head',
-    slot: 'head',
-    baseCapacity: 45,
-    description: 'A classic pointed wizard hat. Decent capacity for headwear.',
-  },
-  arcanistCirclet: {
-    id: 'arcanistCirclet',
-    name: 'Arcanist Circlet',
-    category: 'head',
-    slot: 'head',
-    baseCapacity: 40,
-    description: 'A silver circlet worn by accomplished arcanists.',
-  },
-  battleHelm: {
-    id: 'battleHelm',
-    name: 'Battle Helm',
-    category: 'head',
-    slot: 'head',
-    baseCapacity: 50,
-    description: 'A sturdy helm for battle mages.',
-  },
-  
-  // ─── Body ────────────────────────────────────────────────────────────────
-  civilianShirt: {
-    id: 'civilianShirt',
-    name: 'Civilian Shirt',
-    category: 'body',
-    slot: 'body',
-    baseCapacity: 30,
-    description: 'A plain shirt with minimal magical properties.',
-  },
-  apprenticeRobe: {
-    id: 'apprenticeRobe',
-    name: 'Apprentice Robe',
-    category: 'body',
-    slot: 'body',
-    baseCapacity: 45,
-    description: 'The standard robe for magic apprentices.',
-  },
-  scholarRobe: {
-    id: 'scholarRobe',
-    name: 'Scholar Robe',
-    category: 'body',
-    slot: 'body',
-    baseCapacity: 55,
-    description: 'A robe worn by scholars and researchers.',
-  },
-  battleRobe: {
-    id: 'battleRobe',
-    name: 'Battle Robe',
-    category: 'body',
-    slot: 'body',
-    baseCapacity: 65,
-    description: 'A reinforced robe designed for combat mages.',
-  },
-  arcanistRobe: {
-    id: 'arcanistRobe',
-    name: 'Arcanist Robe',
-    category: 'body',
-    slot: 'body',
-    baseCapacity: 80,
-    description: 'An ornate robe for master arcanists. High capacity for body armor.',
-  },
-  
-  // ─── Hands ───────────────────────────────────────────────────────────────
-  civilianGloves: {
-    id: 'civilianGloves',
-    name: 'Civilian Gloves',
-    category: 'hands',
-    slot: 'hands',
-    baseCapacity: 20,
-    description: 'Simple cloth gloves. Minimal magical capacity.',
-  },
-  apprenticeGloves: {
-    id: 'apprenticeGloves',
-    name: 'Apprentice Gloves',
-    category: 'hands',
-    slot: 'hands',
-    baseCapacity: 30,
-    description: 'Basic gloves for handling magical components.',
-  },
-  spellweaveGloves: {
-    id: 'spellweaveGloves',
-    name: 'Spellweave Gloves',
-    category: 'hands',
-    slot: 'hands',
-    baseCapacity: 40,
-    description: 'Gloves woven with mana-conductive threads.',
-  },
-  combatGauntlets: {
-    id: 'combatGauntlets',
-    name: 'Combat Gauntlets',
-    category: 'hands',
-    slot: 'hands',
-    baseCapacity: 35,
-    description: 'Armored gauntlets for battle mages.',
-  },
-  
-  // ─── Feet ────────────────────────────────────────────────────────────────
-  civilianShoes: {
-    id: 'civilianShoes',
-    name: 'Civilian Shoes',
-    category: 'feet',
-    slot: 'feet',
-    baseCapacity: 15,
-    description: 'Simple leather shoes. No special properties.',
-  },
-  apprenticeBoots: {
-    id: 'apprenticeBoots',
-    name: 'Apprentice Boots',
-    category: 'feet',
-    slot: 'feet',
-    baseCapacity: 25,
-    description: 'Basic boots for magic students.',
-  },
-  travelerBoots: {
-    id: 'travelerBoots',
-    name: 'Traveler Boots',
-    category: 'feet',
-    slot: 'feet',
-    baseCapacity: 30,
-    description: 'Comfortable boots for long journeys.',
-  },
-  battleBoots: {
-    id: 'battleBoots',
-    name: 'Battle Boots',
-    category: 'feet',
-    slot: 'feet',
-    baseCapacity: 35,
-    description: 'Sturdy boots for combat situations.',
-  },
-  
-  // ─── Accessories ────────────────────────────────────────────────────────
-  copperRing: {
-    id: 'copperRing',
-    name: 'Copper Ring',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 15,
-    description: 'A simple copper ring. Basic capacity for accessories.',
-  },
-  silverRing: {
-    id: 'silverRing',
-    name: 'Silver Ring',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 25,
-    description: 'A silver ring with decent magical conductivity.',
-  },
-  goldRing: {
-    id: 'goldRing',
-    name: 'Gold Ring',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 35,
-    description: 'A gold ring with excellent magical properties.',
-  },
-  signetRing: {
-    id: 'signetRing',
-    name: 'Signet Ring',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 30,
-    description: 'A ring bearing a magical sigil.',
-  },
-  copperAmulet: {
-    id: 'copperAmulet',
-    name: 'Copper Amulet',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 20,
-    description: 'A simple copper amulet on a leather cord.',
-  },
-  silverAmulet: {
-    id: 'silverAmulet',
-    name: 'Silver Amulet',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 30,
-    description: 'A silver amulet with a small gem.',
-  },
-  crystalPendant: {
-    id: 'crystalPendant',
-    name: 'Crystal Pendant',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 45,
-    description: 'A pendant with a mana-infused crystal.',
-  },
-  manaBrooch: {
-    id: 'manaBrooch',
-    name: 'Mana Brooch',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 40,
-    description: 'A decorative brooch that can hold enchantments.',
-  },
-  arcanistPendant: {
-    id: 'arcanistPendant',
-    name: 'Arcanist Pendant',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 55,
-    description: 'A powerful pendant worn by master arcanists.',
-  },
-  voidTouchedRing: {
-    id: 'voidTouchedRing',
-    name: 'Void-Touched Ring',
-    category: 'accessory',
-    slot: 'accessory1',
-    baseCapacity: 50,
-    description: 'A ring corrupted by void energy. High capacity but risky.',
-  },
-};
-
-// ─── Helper Functions ─────────────────────────────────────────────────────────
-
-export function getEquipmentType(id: string): EquipmentType | undefined {
-  return EQUIPMENT_TYPES[id];
-}
-
-export function getEquipmentByCategory(category: EquipmentCategory): EquipmentType[] {
-  return Object.values(EQUIPMENT_TYPES).filter(e => e.category === category);
-}
-
-export function getEquipmentBySlot(slot: EquipmentSlot): EquipmentType[] {
-  return Object.values(EQUIPMENT_TYPES).filter(e => e.slot === slot);
-}
-
-export function getAllEquipmentTypes(): EquipmentType[] {
-  return Object.values(EQUIPMENT_TYPES);
-}
-
-// Get valid slots for a category
-// Note: For 2-handed weapons, use getValidSlotsForEquipmentType instead
-export function getValidSlotsForCategory(category: EquipmentCategory): EquipmentSlot[] {
-  switch (category) {
-    case 'caster':
-    case 'catalyst':
-    case 'sword':
-      return ['mainHand'];
-    case 'shield':
-      return ['offHand'];
-    case 'head':
-      return ['head'];
-    case 'body':
-      return ['body'];
-    case 'hands':
-      return ['hands'];
-    case 'feet':
-      return ['feet'];
-    case 'accessory':
-      return ['accessory1', 'accessory2'];
-    default:
-      return [];
-  }
-}
-
-// Get valid slots for a specific equipment type (considers 2-handed weapons)
-export function getValidSlotsForEquipmentType(equipType: EquipmentType): EquipmentSlot[] {
-  // 2-handed weapons occupy both main hand and offhand
-  if (equipType.twoHanded) {
-    return ['mainHand', 'offHand'];
-  }
-  
-  // Otherwise use category-based slots
-  return getValidSlotsForCategory(equipType.category);
-}
-
-// Check if an equipment type can be equipped in a specific slot
-export function canEquipInSlot(equipmentType: EquipmentType, slot: EquipmentSlot): boolean {
-  const validSlots = getValidSlotsForCategory(equipmentType.category);
-  return validSlots.includes(slot);
-}

src/lib/game/data/equipment/accessories.ts

@@ -0,0 +1,87 @@
+// ─── Accessories Equipment Types ──────────────────────────────────
+
+import type { EquipmentType } from './types';
+
+export const ACCESSORIES_EQUIPMENT: Record<string, EquipmentType> = {
+  // ─── Accessories ────────────────────────────────────────────────
+  copperRing: {
+    id: 'copperRing',
+    name: 'Copper Ring',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 15,
+    description: 'A simple copper ring. Basic capacity for accessories.',
+  },
+  silverRing: {
+    id: 'silverRing',
+    name: 'Silver Ring',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 25,
+    description: 'A silver ring with decent magical conductivity.',
+  },
+  goldRing: {
+    id: 'goldRing',
+    name: 'Gold Ring',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 35,
+    description: 'A gold ring with excellent magical properties.',
+  },
+  signetRing: {
+    id: 'signetRing',
+    name: 'Signet Ring',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 30,
+    description: 'A ring bearing a magical sigil.',
+  },
+  copperAmulet: {
+    id: 'copperAmulet',
+    name: 'Copper Amulet',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 20,
+    description: 'A simple copper amulet on a leather cord.',
+  },
+  silverAmulet: {
+    id: 'silverAmulet',
+    name: 'Silver Amulet',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 30,
+    description: 'A silver amulet with a small gem.',
+  },
+  crystalPendant: {
+    id: 'crystalPendant',
+    name: 'Crystal Pendant',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 45,
+    description: 'A pendant with a mana-infused crystal.',
+  },
+  manaBrooch: {
+    id: 'manaBrooch',
+    name: 'Mana Brooch',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 40,
+    description: 'A decorative brooch that can hold enchantments.',
+  },
+  arcanistPendant: {
+    id: 'arcanistPendant',
+    name: 'Arcanist Pendant',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 55,
+    description: 'A powerful pendant worn by master arcanists.',
+  },
+  voidTouchedRing: {
+    id: 'voidTouchedRing',
+    name: 'Void-Touched Ring',
+    category: 'accessory',
+    slot: 'accessory1',
+    baseCapacity: 50,
+    description: 'A ring corrupted by void energy. High capacity but risky.',
+  },
+};

src/lib/game/data/equipment/body.ts

@@ -0,0 +1,47 @@
+// ─── Body Equipment Types ─────────────────────────────────────────
+
+import type { EquipmentType } from './types';
+
+export const BODY_EQUIPMENT: Record<string, EquipmentType> = {
+  // ─── Body ────────────────────────────────────────────────────────
+  civilianShirt: {
+    id: 'civilianShirt',
+    name: 'Civilian Shirt',
+    category: 'body',
+    slot: 'body',
+    baseCapacity: 30,
+    description: 'A plain shirt with minimal magical properties.',
+  },
+  apprenticeRobe: {
+    id: 'apprenticeRobe',
+    name: 'Apprentice Robe',
+    category: 'body',
+    slot: 'body',
+    baseCapacity: 45,
+    description: 'The standard robe for magic apprentices.',
+  },
+  scholarRobe: {
+    id: 'scholarRobe',
+    name: 'Scholar Robe',
+    category: 'body',
+    slot: 'body',
+    baseCapacity: 55,
+    description: 'A robe worn by scholars and researchers.',
+  },
+  battleRobe: {
+    id: 'battleRobe',
+    name: 'Battle Robe',
+    category: 'body',
+    slot: 'body',
+    baseCapacity: 65,
+    description: 'A reinforced robe designed for combat mages.',
+  },
+  arcanistRobe: {
+    id: 'arcanistRobe',
+    name: 'Arcanist Robe',
+    category: 'body',
+    slot: 'body',
+    baseCapacity: 80,
+    description: 'An ornate robe for master arcanists. High capacity for body armor.',
+  },
+};

src/lib/game/data/equipment/casters.ts

@@ -0,0 +1,59 @@
+// ─── Caster Equipment Types ────────────────────────────────────────────
+
+import type { EquipmentType } from './types';
+
+export const CASTER_EQUIPMENT: Record<string, EquipmentType> = {
+  // ─── Main Hand - Casters ─────────────────────────────────────────────────
+  basicStaff: {
+    id: 'basicStaff',
+    name: 'Basic Staff',
+    category: 'caster',
+    slot: 'mainHand',
+    baseCapacity: 50,
+    description: 'A simple wooden staff, basic but reliable for channeling mana.',
+    twoHanded: true,
+  },
+  apprenticeWand: {
+    id: 'apprenticeWand',
+    name: 'Apprentice Wand',
+    category: 'caster',
+    slot: 'mainHand',
+    baseCapacity: 35,
+    description: 'A lightweight wand favored by apprentices. Lower capacity but faster to prepare.',
+  },
+  oakStaff: {
+    id: 'oakStaff',
+    name: 'Oak Staff',
+    category: 'caster',
+    slot: 'mainHand',
+    baseCapacity: 65,
+    description: 'A sturdy oak staff with decent mana capacity.',
+    twoHanded: true,
+  },
+  crystalWand: {
+    id: 'crystalWand',
+    name: 'Crystal Wand',
+    category: 'caster',
+    slot: 'mainHand',
+    baseCapacity: 45,
+    description: 'A wand tipped with a small crystal. Excellent for elemental enchantments.',
+  },
+  arcanistStaff: {
+    id: 'arcanistStaff',
+    name: 'Arcanist Staff',
+    category: 'caster',
+    slot: 'mainHand',
+    baseCapacity: 80,
+    description: 'A staff designed for advanced spellcasters. High capacity for complex enchantments.',
+    twoHanded: true,
+  },
+  battlestaff: {
+    id: 'battlestaff',
+    name: 'Battlestaff',
+    category: 'caster',
+    slot: 'mainHand',
+    baseCapacity: 70,
+    description: 'A reinforced staff suitable for both casting and combat.',
+    twoHanded: true,
+  },
+};

src/lib/game/data/equipment/catalysts.ts

@@ -0,0 +1,31 @@
+// ─── Catalyst Equipment Types ───────────────────────────────────────────
+
+import type { EquipmentType } from './types';
+
+export const CATALYST_EQUIPMENT: Record<string, EquipmentType> = {
+  // ─── Main Hand - Catalysts ────────────────────────────────────────────────
+  basicCatalyst: {
+    id: 'basicCatalyst',
+    name: 'Basic Catalyst',
+    category: 'catalyst',
+    slot: 'mainHand',
+    baseCapacity: 40,
+    description: 'A simple catalyst for amplifying magical effects.',
+  },
+  fireCatalyst: {
+    id: 'fireCatalyst',
+    name: 'Fire Catalyst',
+    category: 'catalyst',
+    slot: 'mainHand',
+    baseCapacity: 55,
+    description: 'A catalyst attuned to fire magic. Enhances fire enchantments.',
+  },
+  voidCatalyst: {
+    id: 'voidCatalyst',
+    name: 'Void Catalyst',
+    category: 'catalyst',
+    slot: 'mainHand',
+    baseCapacity: 75,
+    description: 'A rare catalyst touched by void energy. High capacity but volatile.',
+  },
+};

src/lib/game/data/equipment/feet.ts

@@ -0,0 +1,39 @@
+// ─── Feet Equipment Types ─────────────────────────────────────────
+
+import type { EquipmentType } from './types';
+
+export const FEET_EQUIPMENT: Record<string, EquipmentType> = {
+  // ─── Feet ────────────────────────────────────────────────────────
+  civilianShoes: {
+    id: 'civilianShoes',
+    name: 'Civilian Shoes',
+    category: 'feet',
+    slot: 'feet',
+    baseCapacity: 15,
+    description: 'Simple leather shoes. No special properties.',
+  },
+  apprenticeBoots: {
+    id: 'apprenticeBoots',
+    name: 'Apprentice Boots',
+    category: 'feet',
+    slot: 'feet',
+    baseCapacity: 25,
+    description: 'Basic boots for magic students.',
+  },
+  travelerBoots: {
+    id: 'travelerBoots',
+    name: 'Traveler Boots',
+    category: 'feet',
+    slot: 'feet',
+    baseCapacity: 30,
+    description: 'Comfortable boots for long journeys.',
+  },
+  battleBoots: {
+    id: 'battleBoots',
+    name: 'Battle Boots',
+    category: 'feet',
+    slot: 'feet',
+    baseCapacity: 35,
+    description: 'Sturdy boots for combat situations.',
+  },
+};

src/lib/game/data/equipment/hands.ts

@@ -0,0 +1,39 @@
+// ─── Hands Equipment Types ─────────────────────────────────────────
+
+import type { EquipmentType } from './types';
+
+export const HANDS_EQUIPMENT: Record<string, EquipmentType> = {
+  // ─── Hands ───────────────────────────────────────────────────────
+  civilianGloves: {
+    id: 'civilianGloves',
+    name: 'Civilian Gloves',
+    category: 'hands',
+    slot: 'hands',
+    baseCapacity: 20,
+    description: 'Simple cloth gloves. Minimal magical capacity.',
+  },
+  apprenticeGloves: {
+    id: 'apprenticeGloves',
+    name: 'Apprentice Gloves',
+    category: 'hands',
+    slot: 'hands',
+    baseCapacity: 30,
+    description: 'Basic gloves for handling magical components.',
+  },
+  spellweaveGloves: {
+    id: 'spellweaveGloves',
+    name: 'Spellweave Gloves',
+    category: 'hands',
+    slot: 'hands',
+    baseCapacity: 40,
+    description: 'Gloves woven with mana-conductive threads.',
+  },
+  combatGauntlets: {
+    id: 'combatGauntlets',
+    name: 'Combat Gauntlets',
+    category: 'hands',
+    slot: 'hands',
+    baseCapacity: 35,
+    description: 'Armored gauntlets for battle mages.',
+  },
+};

src/lib/game/data/equipment/head.ts

@@ -0,0 +1,47 @@
+// ─── Head Equipment Types ────────────────────────────────────────────
+
+import type { EquipmentType } from './types';
+
+export const HEAD_EQUIPMENT: Record<string, EquipmentType> = {
+  // ─── Head ─────────────────────────────────────────────────────────
+  clothHood: {
+    id: 'clothHood',
+    name: 'Cloth Hood',
+    category: 'head',
+    slot: 'head',
+    baseCapacity: 25,
+    description: 'A simple cloth hood. Minimal protection but comfortable.',
+  },
+  apprenticeCap: {
+    id: 'apprenticeCap',
+    name: 'Apprentice Cap',
+    category: 'head',
+    slot: 'head',
+    baseCapacity: 30,
+    description: 'The traditional cap of magic apprentices.',
+  },
+  wizardHat: {
+    id: 'wizardHat',
+    name: 'Wizard Hat',
+    category: 'head',
+    slot: 'head',
+    baseCapacity: 45,
+    description: 'A classic pointed wizard hat. Decent capacity for headwear.',
+  },
+  arcanistCirclet: {
+    id: 'arcanistCirclet',
+    name: 'Arcanist Circlet',
+    category: 'head',
+    slot: 'head',
+    baseCapacity: 40,
+    description: 'A silver circlet worn by accomplished arcanists.',
+  },
+  battleHelm: {
+    id: 'battleHelm',
+    name: 'Battle Helm',
+    category: 'head',
+    slot: 'head',
+    baseCapacity: 50,
+    description: 'A sturdy helm for battle mages.',
+  },
+};

src/lib/game/data/equipment/index.ts

@@ -0,0 +1,28 @@
+// ─── Equipment Types Index ───────────────────────────────
+// Re-exports from all equipment type modules
+
+// Re-export types
+export type { 
+  EquipmentSlot, 
+  EquipmentCategory, 
+  EquipmentType 
+} from './types';
+
+export { 
+  EQUIPMENT_SLOTS, 
+  SLOT_NAMES 
+} from './types';
+
+// Re-export data
+export { EQUIPMENT_TYPES } from './data';
+
+// Re-export utility functions
+export {
+  getEquipmentType,
+  getEquipmentByCategory,
+  getEquipmentBySlot,
+  getAllEquipmentTypes,
+  getValidSlotsForCategory,
+  getValidSlotsForEquipmentType,
+  canEquipInSlot,
+} from './utils';

src/lib/game/data/equipment/shields.ts

@@ -0,0 +1,39 @@
+// ─── Shield Equipment Types ───────────────────────────────────────────
+
+import type { EquipmentType } from './types';
+
+export const SHIELD_EQUIPMENT: Record<string, EquipmentType> = {
+  // ─── Off Hand - Shields ───────────────────────────────────────────
+  basicShield: {
+    id: 'basicShield',
+    name: 'Basic Shield',
+    category: 'shield',
+    slot: 'offHand',
+    baseCapacity: 40,
+    description: 'A simple wooden shield. Provides basic protection.',
+  },
+  reinforcedShield: {
+    id: 'reinforcedShield',
+    name: 'Reinforced Shield',
+    category: 'shield',
+    slot: 'offHand',
+    baseCapacity: 55,
+    description: 'A metal-reinforced shield with enhanced durability and capacity.',
+  },
+  runicShield: {
+    id: 'runicShield',
+    name: 'Runic Shield',
+    category: 'shield',
+    slot: 'offHand',
+    baseCapacity: 70,
+    description: 'A shield engraved with protective runes. Excellent for defensive enchantments.',
+  },
+  manaShield: {
+    id: 'manaShield',
+    name: 'Mana Shield',
+    category: 'shield',
+    slot: 'offHand',
+    baseCapacity: 60,
+    description: 'A crystalline shield that can store and reflect mana.',
+  },
+};

src/lib/game/data/equipment/swords.ts

@@ -0,0 +1,59 @@
+// ─── Sword Equipment Types ───────────────────────────────────────────
+
+import type { EquipmentType } from './types';
+
+export const SWORD_EQUIPMENT: Record<string, EquipmentType> = {
+  // ─── Main Hand - Magic Swords ─────────────────────────────────────
+  // Magic swords have low base damage but high cast speed
+  // They can be enchanted with elemental effects that use mana over time
+  ironBlade: {
+    id: 'ironBlade',
+    name: 'Iron Blade',
+    category: 'sword',
+    slot: 'mainHand',
+    baseCapacity: 30,
+    baseDamage: 3,
+    baseCastSpeed: 4,
+    description: 'A simple iron sword. Can be enchanted with elemental effects.',
+  },
+  steelBlade: {
+    id: 'steelBlade',
+    name: 'Steel Blade',
+    category: 'sword',
+    slot: 'mainHand',
+    baseCapacity: 40,
+    baseDamage: 4,
+    baseCastSpeed: 4,
+    description: 'A well-crafted steel sword. Balanced for combat and enchanting.',
+  },
+  crystalBlade: {
+    id: 'crystalBlade',
+    name: 'Crystal Blade',
+    category: 'sword',
+    slot: 'mainHand',
+    baseCapacity: 55,
+    baseDamage: 3,
+    baseCastSpeed: 5,
+    description: 'A blade made of crystallized mana. Excellent for elemental enchantments.',
+  },
+  arcanistBlade: {
+    id: 'arcanistBlade',
+    name: 'Arcanist Blade',
+    category: 'sword',
+    slot: 'mainHand',
+    baseCapacity: 65,
+    baseDamage: 5,
+    baseCastSpeed: 4,
+    description: 'A sword forged for battle mages. High capacity for powerful enchantments.',
+  },
+  voidBlade: {
+    id: 'voidBlade',
+    name: 'Void-Touched Blade',
+    category: 'sword',
+    slot: 'mainHand',
+    baseCapacity: 50,
+    baseDamage: 6,
+    baseCastSpeed: 3,
+    description: 'A blade corrupted by void energy. Powerful but consumes more mana.',
+  },
+};

src/lib/game/data/equipment/types.ts

@@ -0,0 +1,31 @@
+// ─── Equipment Types ─────────────────────────────────────────────────
+
+export type EquipmentSlot = 'mainHand' | 'offHand' | 'head' | 'body' | 'hands' | 'feet' | 'accessory1' | 'accessory2';
+export type EquipmentCategory = 'caster' | 'shield' | 'catalyst' | 'sword' | 'head' | 'body' | 'hands' | 'feet' | 'accessory';
+
+// All equipment slots in order
+export const EQUIPMENT_SLOTS: EquipmentSlot[] = ['mainHand', 'offHand', 'head', 'body', 'hands', 'feet', 'accessory1', 'accessory2'];
+
+// Human-readable names for equipment slots
+export const SLOT_NAMES: Record<EquipmentSlot, string> = {
+  mainHand: 'Main Hand',
+  offHand: 'Off Hand',
+  head: 'Head',
+  body: 'Body',
+  hands: 'Hands',
+  feet: 'Feet',
+  accessory1: 'Accessory 1',
+  accessory2: 'Accessory 2',
+};
+
+export interface EquipmentType {
+  id: string;
+  name: string;
+  category: EquipmentCategory;
+  slot: EquipmentSlot;
+  baseCapacity: number;
+  description: string;
+  baseDamage?: number;         // For swords
+  baseCastSpeed?: number;      // For swords (higher = faster)
+  twoHanded?: boolean;         // If true, weapon occupies both main hand and offhand slots
+}

src/lib/game/data/equipment/utils.ts

@@ -0,0 +1,62 @@
+// ─── Equipment Helper Functions ─────────────────────────
+
+import type { EquipmentType, EquipmentSlot, EquipmentCategory } from './types';
+import { EQUIPMENT_TYPES } from './index';
+
+export function getEquipmentType(id: string): EquipmentType | undefined {
+  return EQUIPMENT_TYPES[id];
+}
+
+export function getEquipmentByCategory(category: EquipmentCategory): EquipmentType[] {
+  return Object.values(EQUIPMENT_TYPES).filter(e => e.category === category) as EquipmentType[];
+}
+
+export function getEquipmentBySlot(slot: EquipmentSlot): EquipmentType[] {
+  return Object.values(EQUIPMENT_TYPES).filter(e => e.slot === slot) as EquipmentType[];
+}
+
+export function getAllEquipmentTypes(): EquipmentType[] {
+  return Object.values(EQUIPMENT_TYPES) as EquipmentType[];
+}
+
+// Get valid slots for a category
+// Note: For 2-handed weapons, use getValidSlotsForEquipmentType instead
+export function getValidSlotsForCategory(category: EquipmentCategory): EquipmentSlot[] {
+  switch (category) {
+    case 'caster':
+    case 'catalyst':
+    case 'sword':
+      return ['mainHand'];
+    case 'shield':
+      return ['offHand'];
+    case 'head':
+      return ['head'];
+    case 'body':
+      return ['body'];
+    case 'hands':
+      return ['hands'];
+    case 'feet':
+      return ['feet'];
+    case 'accessory':
+      return ['accessory1', 'accessory2'];
+    default:
+      return [];
+  }
+}
+
+// Get valid slots for a specific equipment type (considers 2-handed weapons)
+export function getValidSlotsForEquipmentType(equipType: EquipmentType): EquipmentSlot[] {
+  // 2-handed weapons occupy both main hand and offhand
+  if (equipType.twoHanded) {
+    return ['mainHand', 'offHand'];
+  }
+  
+  // Otherwise use category-based slots
+  return getValidSlotsForCategory(equipType.category);
+}
+
+// Check if an equipment type can be equipped in a specific slot
+export function canEquipInSlot(equipmentType: EquipmentType, slot: EquipmentSlot): boolean {
+  const validSlots = getValidSlotsForEquipmentType(equipmentType);
+  return validSlots.includes(slot);
+}

src/lib/game/data/golems.ts

@@ -1,471 +0,0 @@
-// ─── Golem Definitions ─────────────────────────────────────────────────────────
-// Golems are magical constructs that fight alongside the player
-// They cost mana to summon and maintain
-
-import type { SpellCost } from '../types';
-
-// Golem mana cost helper
-function elemCost(element: string, amount: number): SpellCost {
-  return { type: 'element', element, amount };
-}
-
-function rawCost(amount: number): SpellCost {
-  return { type: 'raw', amount };
-}
-
-export interface GolemManaCost {
-  type: 'raw' | 'element';
-  element?: string;
-  amount: number;
-}
-
-export interface GolemDef {
-  id: string;
-  name: string;
-  description: string;
-  baseManaType: string;          // The primary mana type this golem uses
-  summonCost: GolemManaCost[];   // Cost to summon (can be multiple types)
-  maintenanceCost: GolemManaCost[]; // Cost per hour to maintain
-  damage: number;                // Base damage per attack
-  attackSpeed: number;           // Attacks per hour
-  hp: number;                    // Golem HP (for display, they don't take damage)
-  armorPierce: number;           // Armor piercing (0-1)
-  isAoe: boolean;                // Whether golem attacks are AOE
-  aoeTargets: number;            // Number of targets for AOE
-  unlockCondition: {
-    type: 'attunement_level' | 'mana_unlocked' | 'dual_attunement';
-    attunement?: string;
-    level?: number;
-    manaType?: string;
-    attunements?: string[];
-    levels?: number[];
-  };
-  tier: number;                  // Power tier (1-4)
-}
-
-// All golem definitions
-export const GOLEMS_DEF: Record<string, GolemDef> = {
-  // ─── BASE GOLEMS ─────────────────────────────────────────────────────────────
-  
-  // Earth Golem - Basic, available with Fabricator attunement
-  earthGolem: {
-    id: 'earthGolem',
-    name: 'Earth Golem',
-    description: 'A sturdy construct of stone and soil. Slow but powerful.',
-    baseManaType: 'earth',
-    summonCost: [elemCost('earth', 10)],
-    maintenanceCost: [elemCost('earth', 0.5)],
-    damage: 8,
-    attackSpeed: 1.5,
-    hp: 50,
-    armorPierce: 0.15,
-    isAoe: false,
-    aoeTargets: 1,
-    unlockCondition: {
-      type: 'attunement_level',
-      attunement: 'fabricator',
-      level: 2,
-    },
-    tier: 1,
-  },
-  
-  // ─── ELEMENTAL VARIANT GOLEMS ────────────────────────────────────────────────
-  
-  // Steel Golem - Metal mana variant
-  steelGolem: {
-    id: 'steelGolem',
-    name: 'Steel Golem',
-    description: 'Forged from metal, this golem has high armor piercing.',
-    baseManaType: 'metal',
-    summonCost: [elemCost('metal', 8), elemCost('earth', 5)],
-    maintenanceCost: [elemCost('metal', 0.6), elemCost('earth', 0.2)],
-    damage: 12,
-    attackSpeed: 1.2,
-    hp: 60,
-    armorPierce: 0.35,
-    isAoe: false,
-    aoeTargets: 1,
-    unlockCondition: {
-      type: 'mana_unlocked',
-      manaType: 'metal',
-    },
-    tier: 2,
-  },
-  
-  // Crystal Golem - Crystal mana variant
-  crystalGolem: {
-    id: 'crystalGolem',
-    name: 'Crystal Golem',
-    description: 'A prismatic construct that deals high damage with precision.',
-    baseManaType: 'crystal',
-    summonCost: [elemCost('crystal', 6), elemCost('earth', 3)],
-    maintenanceCost: [elemCost('crystal', 0.4), elemCost('earth', 0.2)],
-    damage: 18,
-    attackSpeed: 1.0,
-    hp: 40,
-    armorPierce: 0.25,
-    isAoe: false,
-    aoeTargets: 1,
-    unlockCondition: {
-      type: 'mana_unlocked',
-      manaType: 'crystal',
-    },
-    tier: 3,
-  },
-  
-  // Sand Golem - Sand mana variant
-  sandGolem: {
-    id: 'sandGolem',
-    name: 'Sand Golem',
-    description: 'A shifting construct of sand particles. Hits multiple enemies.',
-    baseManaType: 'sand',
-    summonCost: [elemCost('sand', 8), elemCost('earth', 3)],
-    maintenanceCost: [elemCost('sand', 0.5), elemCost('earth', 0.2)],
-    damage: 6,
-    attackSpeed: 2.0,
-    hp: 35,
-    armorPierce: 0.1,
-    isAoe: true,
-    aoeTargets: 2,
-    unlockCondition: {
-      type: 'mana_unlocked',
-      manaType: 'sand',
-    },
-    tier: 2,
-  },
-  
-  // ─── ADVANCED HYBRID GOLEMS ──────────────────────────────────────────────────
-  // Require Enchanter 5 + Fabricator 5
-  
-  // Lava Golem - Fire + Earth fusion
-  lavaGolem: {
-    id: 'lavaGolem',
-    name: 'Lava Golem',
-    description: 'Molten earth and fire combined. Burns enemies over time.',
-    baseManaType: 'earth',
-    summonCost: [elemCost('earth', 10), elemCost('fire', 8)],
-    maintenanceCost: [elemCost('earth', 0.4), elemCost('fire', 0.5)],
-    damage: 15,
-    attackSpeed: 1.0,
-    hp: 70,
-    armorPierce: 0.2,
-    isAoe: true,
-    aoeTargets: 2,
-    unlockCondition: {
-      type: 'dual_attunement',
-      attunements: ['enchanter', 'fabricator'],
-      levels: [5, 5],
-    },
-    tier: 3,
-  },
-  
-  // Galvanic Golem - Metal + Lightning fusion
-  galvanicGolem: {
-    id: 'galvanicGolem',
-    name: 'Galvanic Golem',
-    description: 'A conductive metal construct charged with lightning. Extremely fast attacks.',
-    baseManaType: 'metal',
-    summonCost: [elemCost('metal', 8), elemCost('lightning', 6)],
-    maintenanceCost: [elemCost('metal', 0.3), elemCost('lightning', 0.6)],
-    damage: 10,
-    attackSpeed: 3.5,
-    hp: 45,
-    armorPierce: 0.45,
-    isAoe: false,
-    aoeTargets: 1,
-    unlockCondition: {
-      type: 'dual_attunement',
-      attunements: ['enchanter', 'fabricator'],
-      levels: [5, 5],
-    },
-    tier: 3,
-  },
-  
-  // Obsidian Golem - Dark + Earth fusion
-  obsidianGolem: {
-    id: 'obsidianGolem',
-    name: 'Obsidian Golem',
-    description: 'Volcanic glass animated by shadow. Devastating single-target damage.',
-    baseManaType: 'earth',
-    summonCost: [elemCost('earth', 12), elemCost('dark', 6)],
-    maintenanceCost: [elemCost('earth', 0.3), elemCost('dark', 0.4)],
-    damage: 25,
-    attackSpeed: 0.8,
-    hp: 55,
-    armorPierce: 0.5,
-    isAoe: false,
-    aoeTargets: 1,
-    unlockCondition: {
-      type: 'dual_attunement',
-      attunements: ['enchanter', 'fabricator'],
-      levels: [5, 5],
-    },
-    tier: 4,
-  },
-  
-  // Prism Golem - Light + Crystal fusion
-  prismGolem: {
-    id: 'prismGolem',
-    name: 'Prism Golem',
-    description: 'A radiant crystal construct. Channels light into piercing beams.',
-    baseManaType: 'crystal',
-    summonCost: [elemCost('crystal', 10), elemCost('light', 6)],
-    maintenanceCost: [elemCost('crystal', 0.4), elemCost('light', 0.4)],
-    damage: 20,
-    attackSpeed: 1.5,
-    hp: 50,
-    armorPierce: 0.35,
-    isAoe: true,
-    aoeTargets: 3,
-    unlockCondition: {
-      type: 'dual_attunement',
-      attunements: ['enchanter', 'fabricator'],
-      levels: [5, 5],
-    },
-    tier: 4,
-  },
-  
-  // Quicksilver Golem - Water + Metal fusion
-  quicksilverGolem: {
-    id: 'quicksilverGolem',
-    name: 'Quicksilver Golem',
-    description: 'Liquid metal that flows around defenses. Fast and hard to dodge.',
-    baseManaType: 'metal',
-    summonCost: [elemCost('metal', 6), elemCost('water', 6)],
-    maintenanceCost: [elemCost('metal', 0.3), elemCost('water', 0.3)],
-    damage: 8,
-    attackSpeed: 4.0,
-    hp: 40,
-    armorPierce: 0.3,
-    isAoe: false,
-    aoeTargets: 1,
-    unlockCondition: {
-      type: 'dual_attunement',
-      attunements: ['enchanter', 'fabricator'],
-      levels: [5, 5],
-    },
-    tier: 3,
-  },
-  
-  // Voidstone Golem - Void + Earth fusion (ultimate)
-  voidstoneGolem: {
-    id: 'voidstoneGolem',
-    name: 'Voidstone Golem',
-    description: 'Earth infused with void energy. The ultimate golem construct.',
-    baseManaType: 'earth',
-    summonCost: [elemCost('earth', 15), elemCost('void', 8)],
-    maintenanceCost: [elemCost('earth', 0.3), elemCost('void', 0.6)],
-    damage: 40,
-    attackSpeed: 0.6,
-    hp: 100,
-    armorPierce: 0.6,
-    isAoe: true,
-    aoeTargets: 3,
-    unlockCondition: {
-      type: 'dual_attunement',
-      attunements: ['enchanter', 'fabricator'],
-      levels: [5, 5],
-    },
-    tier: 4,
-  },
-};
-
-// Get golem slots based on Fabricator attunement level
-// Level 2 = 1, Level 4 = 2, Level 6 = 3, Level 8 = 4, Level 10 = 5
-export function getGolemSlots(fabricatorLevel: number): number {
-  if (fabricatorLevel < 2) return 0;
-  return Math.floor(fabricatorLevel / 2);
-}
-
-// Check if a golem is unlocked based on player state
-export function isGolemUnlocked(
-  golemId: string,
-  attunements: Record<string, { active: boolean; level: number }>,
-  unlockedElements: string[]
-): boolean {
-  const golem = GOLEMS_DEF[golemId];
-  if (!golem) return false;
-  
-  const condition = golem.unlockCondition;
-  
-  switch (condition.type) {
-    case 'attunement_level':
-      const attState = attunements[condition.attunement || ''];
-      return attState?.active && (attState.level || 1) >= (condition.level || 1);
-    
-    case 'mana_unlocked':
-      return unlockedElements.includes(condition.manaType || '');
-    
-    case 'dual_attunement':
-      if (!condition.attunements || !condition.levels) return false;
-      return condition.attunements.every((attId, idx) => {
-        const att = attunements[attId];
-        return att?.active && (att.level || 1) >= condition.levels![idx];
-      });
-    
-    default:
-      return false;
-  }
-}
-
-// Get all unlocked golems for a player
-export function getUnlockedGolems(
-  attunements: Record<string, { active: boolean; level: number }>,
-  unlockedElements: string[]
-): GolemDef[] {
-  return Object.values(GOLEMS_DEF).filter(golem => 
-    isGolemUnlocked(golem.id, attunements, unlockedElements)
-  );
-}
-
-// Calculate golem damage with skill bonuses
-export function getGolemDamage(
-  golemId: string,
-  skills: Record<string, number>
-): number {
-  const golem = GOLEMS_DEF[golemId];
-  if (!golem) return 0;
-  
-  let damage = golem.damage;
-  
-  // Golem Mastery skill bonus
-  const masteryBonus = 1 + (skills.golemMastery || 0) * 0.1;
-  damage *= masteryBonus;
-  
-  return damage;
-}
-
-// Calculate golem attack speed with skill bonuses
-export function getGolemAttackSpeed(
-  golemId: string,
-  skills: Record<string, number>
-): number {
-  const golem = GOLEMS_DEF[golemId];
-  if (!golem) return 0;
-  
-  let speed = golem.attackSpeed;
-  
-  // Golem Efficiency skill bonus
-  const efficiencyBonus = 1 + (skills.golemEfficiency || 0) * 0.05;
-  speed *= efficiencyBonus;
-  
-  return speed;
-}
-
-// Get floors golems can last (base 1, +1 per Golem Longevity skill level)
-export function getGolemFloorDuration(skills: Record<string, number>): number {
-  return 1 + (skills.golemLongevity || 0);
-}
-
-// Get maintenance cost multiplier (Golem Siphon reduces by 10% per level)
-export function getGolemMaintenanceMultiplier(skills: Record<string, number>): number {
-  return 1 - (skills.golemSiphon || 0) * 0.1;
-}
-
-// Check if player can afford golem summon cost
-export function canAffordGolemSummon(
-  golemId: string,
-  rawMana: number,
-  elements: Record<string, { current: number; max: number; unlocked: boolean }>
-): boolean {
-  const golem = GOLEMS_DEF[golemId];
-  if (!golem) return false;
-  
-  for (const cost of golem.summonCost) {
-    if (cost.type === 'raw') {
-      if (rawMana < cost.amount) return false;
-    } else if (cost.element) {
-      const elem = elements[cost.element];
-      if (!elem || !elem.unlocked || elem.current < cost.amount) return false;
-    }
-  }
-  
-  return true;
-}
-
-// Deduct golem summon cost from mana pools
-export function deductGolemSummonCost(
-  golemId: string,
-  rawMana: number,
-  elements: Record<string, { current: number; max: number; unlocked: boolean }>
-): { rawMana: number; elements: Record<string, { current: number; max: number; unlocked: boolean }> } {
-  const golem = GOLEMS_DEF[golemId];
-  if (!golem) return { rawMana, elements };
-  
-  let newRawMana = rawMana;
-  let newElements = { ...elements };
-  
-  for (const cost of golem.summonCost) {
-    if (cost.type === 'raw') {
-      newRawMana -= cost.amount;
-    } else if (cost.element && newElements[cost.element]) {
-      newElements = {
-        ...newElements,
-        [cost.element]: {
-          ...newElements[cost.element],
-          current: newElements[cost.element].current - cost.amount,
-        },
-      };
-    }
-  }
-  
-  return { rawMana: newRawMana, elements: newElements };
-}
-
-// Check if player can afford golem maintenance for one tick
-export function canAffordGolemMaintenance(
-  golemId: string,
-  rawMana: number,
-  elements: Record<string, { current: number; max: number; unlocked: boolean }>,
-  skills: Record<string, number>
-): boolean {
-  const golem = GOLEMS_DEF[golemId];
-  if (!golem) return false;
-  
-  const maintenanceMult = getGolemMaintenanceMultiplier(skills);
-  
-  for (const cost of golem.maintenanceCost) {
-    const adjustedAmount = cost.amount * maintenanceMult;
-    if (cost.type === 'raw') {
-      if (rawMana < adjustedAmount) return false;
-    } else if (cost.element) {
-      const elem = elements[cost.element];
-      if (!elem || !elem.unlocked || elem.current < adjustedAmount) return false;
-    }
-  }
-  
-  return true;
-}
-
-// Deduct golem maintenance cost for one tick
-export function deductGolemMaintenance(
-  golemId: string,
-  rawMana: number,
-  elements: Record<string, { current: number; max: number; unlocked: boolean }>,
-  skills: Record<string, number>
-): { rawMana: number; elements: Record<string, { current: number; max: number; unlocked: boolean }> } {
-  const golem = GOLEMS_DEF[golemId];
-  if (!golem) return { rawMana, elements };
-  
-  const maintenanceMult = getGolemMaintenanceMultiplier(skills);
-  
-  let newRawMana = rawMana;
-  let newElements = { ...elements };
-  
-  for (const cost of golem.maintenanceCost) {
-    const adjustedAmount = cost.amount * maintenanceMult;
-    if (cost.type === 'raw') {
-      newRawMana -= adjustedAmount;
-    } else if (cost.element && newElements[cost.element]) {
-      newElements = {
-        ...newElements,
-        [cost.element]: {
-          ...newElements[cost.element],
-          current: newElements[cost.element].current - adjustedAmount,
-        },
-      };
-    }
-  }
-  
-  return { rawMana: newRawMana, elements: newElements };
-}

src/lib/game/data/golems/base-golems.ts

@@ -0,0 +1,30 @@
+// ─── Base Golem Definitions ───────────────────────────────────
+
+import type { GolemDef } from './types';
+import { elemCost } from './types';
+
+export const BASE_GOLEMS: Record<string, GolemDef> = {
+  // ─── BASE GOLEMS ─────────────────────────────────────────────────────
+  
+  // Earth Golem - Basic, available with Fabricator attunement
+  earthGolem: {
+    id: 'earthGolem',
+    name: 'Earth Golem',
+    description: 'A sturdy construct of stone and soil. Slow but powerful.',
+    baseManaType: 'earth',
+    summonCost: [elemCost('earth', 10)],
+    maintenanceCost: [elemCost('earth', 0.5)],
+    damage: 8,
+    attackSpeed: 1.5,
+    hp: 50,
+    armorPierce: 0.15,
+    isAoe: false,
+    aoeTargets: 1,
+    unlockCondition: {
+      type: 'attunement_level',
+      attunement: 'fabricator',
+      level: 2,
+    },
+    tier: 1,
+  },
+};

src/lib/game/data/golems/elemental-golems.ts

@@ -0,0 +1,71 @@
+// ─── Elemental Variant Golems ───────────────────────────────────
+
+import type { GolemDef } from './types';
+import { elemCost } from './types';
+
+export const ELEMENTAL_GOLEMS: Record<string, GolemDef> = {
+  // ─── ELEMENTAL VARIANT GOLEMS ────────────────────────────────────────
+  
+  // Steel Golem - Metal mana variant
+  steelGolem: {
+    id: 'steelGolem',
+    name: 'Steel Golem',
+    description: 'Forged from metal, this golem has high armor piercing.',
+    baseManaType: 'metal',
+    summonCost: [elemCost('metal', 8), elemCost('earth', 5)],
+    maintenanceCost: [elemCost('metal', 0.6), elemCost('earth', 0.2)],
+    damage: 12,
+    attackSpeed: 1.2,
+    hp: 60,
+    armorPierce: 0.35,
+    isAoe: false,
+    aoeTargets: 1,
+    unlockCondition: {
+      type: 'mana_unlocked',
+      manaType: 'metal',
+    },
+    tier: 2,
+  },
+  
+  // Crystal Golem - Crystal mana variant
+  crystalGolem: {
+    id: 'crystalGolem',
+    name: 'Crystal Golem',
+    description: 'A prismatic construct that deals high damage with precision.',
+    baseManaType: 'crystal',
+    summonCost: [elemCost('crystal', 6), elemCost('earth', 3)],
+    maintenanceCost: [elemCost('crystal', 0.4), elemCost('earth', 0.2)],
+    damage: 18,
+    attackSpeed: 1.0,
+    hp: 40,
+    armorPierce: 0.25,
+    isAoe: false,
+    aoeTargets: 1,
+    unlockCondition: {
+      type: 'mana_unlocked',
+      manaType: 'crystal',
+    },
+    tier: 3,
+  },
+  
+  // Sand Golem - Sand mana variant
+  sandGolem: {
+    id: 'sandGolem',
+    name: 'Sand Golem',
+    description: 'A shifting construct of sand particles. Hits multiple enemies.',
+    baseManaType: 'sand',
+    summonCost: [elemCost('sand', 8), elemCost('earth', 3)],
+    maintenanceCost: [elemCost('sand', 0.5), elemCost('earth', 0.2)],
+    damage: 6,
+    attackSpeed: 2.0,
+    hp: 35,
+    armorPierce: 0.1,
+    isAoe: true,
+    aoeTargets: 2,
+    unlockCondition: {
+      type: 'mana_unlocked',
+      manaType: 'sand',
+    },
+    tier: 2,
+  },
+};

src/lib/game/data/golems/hybrid-golems.ts

@@ -0,0 +1,139 @@
+// ─── Advanced Hybrid Golems ────────────────────────────────────
+// Require Enchanter 5 + Fabricator 5
+
+import type { GolemDef } from './types';
+import { elemCost } from './types';
+
+export const HYBRID_GOLEMS: Record<string, GolemDef> = {
+  // Lava Golem - Fire + Earth fusion
+  lavaGolem: {
+    id: 'lavaGolem',
+    name: 'Lava Golem',
+    description: 'Molten earth and fire combined. Burns enemies over time.',
+    baseManaType: 'earth',
+    summonCost: [elemCost('earth', 10), elemCost('fire', 8)],
+    maintenanceCost: [elemCost('earth', 0.4), elemCost('fire', 0.5)],
+    damage: 15,
+    attackSpeed: 1.0,
+    hp: 70,
+    armorPierce: 0.2,
+    isAoe: true,
+    aoeTargets: 2,
+    unlockCondition: {
+      type: 'dual_attunement',
+      attunements: ['enchanter', 'fabricator'],
+      levels: [5, 5],
+    },
+    tier: 3,
+  },
+  
+  // Galvanic Golem - Metal + Lightning fusion
+  galvanicGolem: {
+    id: 'galvanicGolem',
+    name: 'Galvanic Golem',
+    description: 'A conductive metal construct charged with lightning. Extremely fast attacks.',
+    baseManaType: 'metal',
+    summonCost: [elemCost('metal', 8), elemCost('lightning', 6)],
+    maintenanceCost: [elemCost('metal', 0.3), elemCost('lightning', 0.6)],
+    damage: 10,
+    attackSpeed: 3.5,
+    hp: 45,
+    armorPierce: 0.45,
+    isAoe: false,
+    aoeTargets: 1,
+    unlockCondition: {
+      type: 'dual_attunement',
+      attunements: ['enchanter', 'fabricator'],
+      levels: [5, 5],
+    },
+    tier: 3,
+  },
+  
+  // Obsidian Golem - Dark + Earth fusion
+  obsidianGolem: {
+    id: 'obsidianGolem',
+    name: 'Obsidian Golem',
+    description: 'Volcanic glass animated by shadow. Devastating single-target damage.',
+    baseManaType: 'earth',
+    summonCost: [elemCost('earth', 12), elemCost('dark', 6)],
+    maintenanceCost: [elemCost('earth', 0.3), elemCost('dark', 0.4)],
+    damage: 25,
+    attackSpeed: 0.8,
+    hp: 55,
+    armorPierce: 0.5,
+    isAoe: false,
+    aoeTargets: 1,
+    unlockCondition: {
+      type: 'dual_attunement',
+      attunements: ['enchanter', 'fabricator'],
+      levels: [5, 5],
+    },
+    tier: 4,
+  },
+  
+  // Prism Golem - Light + Crystal fusion
+  prismGolem: {
+    id: 'prismGolem',
+    name: 'Prism Golem',
+    description: 'A radiant crystal construct. Channels light into piercing beams.',
+    baseManaType: 'crystal',
+    summonCost: [elemCost('crystal', 10), elemCost('light', 6)],
+    maintenanceCost: [elemCost('crystal', 0.4), elemCost('light', 0.4)],
+    damage: 20,
+    attackSpeed: 1.5,
+    hp: 50,
+    armorPierce: 0.35,
+    isAoe: true,
+    aoeTargets: 3,
+    unlockCondition: {
+      type: 'dual_attunement',
+      attunements: ['enchanter', 'fabricator'],
+      levels: [5, 5],
+    },
+    tier: 4,
+  },
+  
+  // Quicksilver Golem - Water + Metal fusion
+  quicksilverGolem: {
+    id: 'quicksilverGolem',
+    name: 'Quicksilver Golem',
+    description: 'Liquid metal that flows around defenses. Fast and hard to dodge.',
+    baseManaType: 'metal',
+    summonCost: [elemCost('metal', 6), elemCost('water', 6)],
+    maintenanceCost: [elemCost('metal', 0.3), elemCost('water', 0.3)],
+    damage: 8,
+    attackSpeed: 4.0,
+    hp: 40,
+    armorPierce: 0.3,
+    isAoe: false,
+    aoeTargets: 1,
+    unlockCondition: {
+      type: 'dual_attunement',
+      attunements: ['enchanter', 'fabricator'],
+      levels: [5, 5],
+    },
+    tier: 3,
+  },
+  
+  // Voidstone Golem - Void + Earth fusion (ultimate)
+  voidstoneGolem: {
+    id: 'voidstoneGolem',
+    name: 'Voidstone Golem',
+    description: 'Earth infused with void energy. The ultimate golem construct.',
+    baseManaType: 'earth',
+    summonCost: [elemCost('earth', 15), elemCost('void', 8)],
+    maintenanceCost: [elemCost('earth', 0.3), elemCost('void', 0.6)],
+    damage: 40,
+    attackSpeed: 0.6,
+    hp: 100,
+    armorPierce: 0.6,
+    isAoe: true,
+    aoeTargets: 3,
+    unlockCondition: {
+      type: 'dual_attunement',
+      attunements: ['enchanter', 'fabricator'],
+      levels: [5, 5],
+    },
+    tier: 4,
+  },
+};

src/lib/game/data/golems/index.ts

@@ -0,0 +1,23 @@
+// ─── Golem Definitions Index ─────────────────────────────────
+// Re-exports from all golem modules
+
+// Re-export types
+export type { GolemDef, GolemManaCost } from './types';
+
+// Re-export data
+export { GOLEMS_DEF } from './data';
+
+// Re-export utility functions
+export {
+  getGolemSlots,
+  isGolemUnlocked,
+  getUnlockedGolems,
+  getGolemDamage,
+  getGolemAttackSpeed,
+  getGolemFloorDuration,
+  getGolemMaintenanceMultiplier,
+  canAffordGolemSummon,
+  deductGolemSummonCost,
+  canAffordGolemMaintenance,
+  deductGolemMaintenance,
+} from './utils';

src/lib/game/data/golems/types.ts

@@ -0,0 +1,42 @@
+// ─── Golem Types ─────────────────────────────────────────────────
+
+import type { SpellCost } from '../types';
+
+// Golem mana cost helper
+export function elemCost(element: string, amount: number): SpellCost {
+  return { type: 'element', element, amount };
+}
+
+export function rawCost(amount: number): SpellCost {
+  return { type: 'raw', amount };
+}
+
+export interface GolemManaCost {
+  type: 'raw' | 'element';
+  element?: string;
+  amount: number;
+}
+
+export interface GolemDef {
+  id: string;
+  name: string;
+  description: string;
+  baseManaType: string;          // The primary mana type this golem uses
+  summonCost: GolemManaCost[];   // Cost to summon (can be multiple types)
+  maintenanceCost: GolemManaCost[]; // Cost per hour to maintain
+  damage: number;                // Base damage per attack
+  attackSpeed: number;           // Attacks per hour
+  hp: number;                    // Golem HP (for display, they don't take damage)
+  armorPierce: number;           // Armor piercing (0-1)
+  isAoe: boolean;                // Whether golem attacks are AOE
+  aoeTargets: number;            // Number of targets for AOE
+  unlockCondition: {
+    type: 'attunement_level' | 'mana_unlocked' | 'dual_attunement';
+    attunement?: string;
+    level?: number;
+    manaType?: string;
+    attunements?: string[];
+    levels?: number[];
+  };
+  tier: number;                  // Power tier (1-4)
+}