cleanup: delete computed-stats.ts shim and store/index.ts

- Delete src/lib/game/computed-stats.ts (root-level re-export shim)
- Delete src/lib/game/store/index.ts (nothing imports from it)
- Update __tests__/computed-stats.test.ts to import from ../utils instead
- Clean up craftingStore.ts imports (remove unused useGameStore, CraftingApply)

Typecheck and lint pass (pre-existing DisciplinesTab.tsx errors unchanged)

docs/circular-deps.txt

@@ -1,8 +1,8 @@
 # Circular Dependencies
-Generated: 2026-05-18T08:33:19.846Z
+Generated: 2026-05-18T09:26:29.031Z
 Found: 7 circular chain(s) — these MUST be fixed before modifying involved files.
 
-1. Processed 151 files (1.4s) (37 warnings)
+1. Processed 151 files (1.5s) (37 warnings)
 2. 1) data/equipment/index.ts > data/equipment/utils.ts
 3. 2) data/golems/index.ts > data/golems/utils.ts
 4. 3) stores/combat-actions.ts > stores/combatStore.ts

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-05-18T08:33:18.234Z",
+    "generated": "2026-05-18T09:26:27.302Z",
     "description": "Import dependency graph for src/lib/game. Keys are files, values are arrays of files they import.",
     "usage": "To find what a file affects, search for its path in the VALUES. To find what a file depends on, look at its KEY entry."
   },

docs/project-structure.txt

@@ -78,7 +78,6 @@ Mana-Loop/
 │   │   │   │   ├── index.tsx
 │   │   │   │   └── types.ts
 │   │   │   ├── StatsTab/
-│   │   │   │   ├── ActiveUpgradesSection.tsx
 │   │   │   │   ├── CombatStatsSection.tsx
 │   │   │   │   ├── ElementStatsSection.tsx
 │   │   │   │   ├── LoopStatsSection.tsx
@@ -105,20 +104,8 @@ Mana-Loop/
 │   │   │   │   ├── GolemDebug.tsx
 │   │   │   │   ├── PactDebug.tsx
 │   │   │   │   └── index.tsx
-│   │   │   ├── layout/
-│   │   │   │   ├── Header.tsx
-│   │   │   │   └── TabBar.tsx
 │   │   │   ├── shared/
-│   │   │   │   ├── MemorySlotPicker.tsx
-│   │   │   │   ├── StudyProgress.tsx
-│   │   │   │   └── UpgradeDialog.tsx
-│   │   │   ├── stats/
-│   │   │   │   ├── CombatStatsSection.tsx
-│   │   │   │   ├── ManaStatsSection.tsx
-│   │   │   │   ├── ManaTypeBreakdown.tsx
-│   │   │   │   ├── StudyStatsSection.tsx
-│   │   │   │   ├── UpgradeEffectsSection.tsx
-│   │   │   │   └── index.tsx
+│   │   │   │   └── MemorySlotPicker.tsx
 │   │   │   ├── tabs/
 │   │   │   │   └── DisciplinesTab.tsx
 │   │   │   ├── AchievementsDisplay.tsx
@@ -178,11 +165,6 @@ Mana-Loop/
 │       │   │   ├── store-method-tests/
 │       │   │   ├── bug-fixes.test.ts
 │       │   │   └── computed-stats.test.ts
-│       │   ├── attunements/
-│       │   │   ├── data.ts
-│       │   │   ├── index.ts
-│       │   │   ├── types.ts
-│       │   │   └── utils.ts
 │       │   ├── constants/
 │       │   │   ├── spells-modules/
 │       │   │   │   ├── advanced-spells.ts
@@ -280,7 +262,6 @@ Mana-Loop/
 │       │   │   ├── combatSlice.ts
 │       │   │   ├── computed.ts
 │       │   │   ├── craftingSlice.ts
-│       │   │   ├── index.ts
 │       │   │   ├── manaSlice.ts
 │       │   │   ├── pactSlice.ts
 │       │   │   ├── prestigeSlice.ts
@@ -328,7 +309,6 @@ Mana-Loop/
 │       │   │   ├── index.ts
 │       │   │   ├── mana-utils.ts
 │       │   │   └── room-utils.ts
-│       │   ├── computed-stats.ts
 │       │   ├── constants.ts
 │       │   ├── crafting-apply.ts
 │       │   ├── crafting-attunements.ts
@@ -341,14 +321,10 @@ Mana-Loop/
 │       │   ├── debug-context.tsx
 │       │   ├── dynamic-compute.ts
 │       │   ├── effects.ts
-│       │   ├── effects.ts.fix
-│       │   ├── formatting.ts
-│       │   ├── navigation-slice.ts
 │       │   ├── special-effects.ts
 │       │   ├── store.test.ts
 │       │   ├── store.ts
 │       │   ├── stores.test.ts
-│       │   ├── study-slice.ts
 │       │   ├── types.ts
 │       │   ├── upgrade-effects.ts
 │       │   └── upgrade-effects.types.ts

src/app/components/LeftPanel.tsx

@@ -9,7 +9,7 @@ import { ActionButtons } from '@/components/game';
 import { AttunementStatus } from '@/components/game/AttunementStatus';
 import { ActivityLogPanel } from '@/components/game/ActivityLogPanel';
 import { DebugName } from '@/lib/game/debug-context';
-import { useGameStore, useManaStore, useSkillStore, useCombatStore, useCraftingStore, usePrestigeStore } from '@/lib/game/stores';
+import { useGameStore, useManaStore, useCombatStore, useCraftingStore, usePrestigeStore } from '@/lib/game/stores';
 import { getUnifiedEffects } from '@/lib/game/effects';
 import { getMeditationBonus, getIncursionStrength } from '@/lib/game/stores';
 import { computeTotalMaxMana, computeTotalRegen, computeTotalClickMana } from '@/lib/game/effects';
@@ -20,9 +20,6 @@ export function LeftPanel() {
   const rawMana = useManaStore((s) => s.rawMana);
   const elements = useManaStore((s) => s.elements);
   const meditateTicks = useManaStore((s) => s.meditateTicks);
-  const skills = useSkillStore((s) => s.skills);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
-  const skillUpgrades = useSkillStore((s) => s.skillUpgrades);
   const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
   const equippedInstances = useCraftingStore((s) => s.equippedInstances);
   const equipmentInstances = useCraftingStore((s) => s.equipmentInstances);
@@ -30,7 +27,6 @@ export function LeftPanel() {
   const spireMode = useCombatStore((s) => s.spireMode);
   const enterSpireMode = useCombatStore((s) => s.enterSpireMode);
   const currentAction = useCombatStore((s) => s.currentAction);
-  const currentStudyTarget = useSkillStore((s) => s.currentStudyTarget);
   const designProgress = useCraftingStore((s) => s.designProgress);
   const designProgress2 = useCraftingStore((s) => s.designProgress2);
   const preparationProgress = useCraftingStore((s) => s.preparationProgress);
@@ -56,11 +52,11 @@ export function LeftPanel() {
     return () => cancelAnimationFrame(animationFrameId);
   }, [isGathering, gatherMana]);
 
-  const upgradeEffects = getUnifiedEffects({ skillUpgrades, skillTiers, equippedInstances, equipmentInstances });
-  const maxMana = computeTotalMaxMana({ skills, prestigeUpgrades, skillUpgrades, skillTiers, equippedInstances, equipmentInstances }, upgradeEffects);
-  const baseRegen = computeTotalRegen({ skills, prestigeUpgrades, skillUpgrades, skillTiers, equippedInstances, equipmentInstances }, upgradeEffects);
-  const clickMana = computeTotalClickMana({ skills, skillUpgrades, skillTiers, equippedInstances, equipmentInstances }, upgradeEffects);
-  const meditationMultiplier = getMeditationBonus(meditateTicks, skills, upgradeEffects.meditationEfficiency);
+  const upgradeEffects = getUnifiedEffects({ skillUpgrades: {}, skillTiers: {}, equippedInstances, equipmentInstances });
+  const maxMana = computeTotalMaxMana({ skills: {}, prestigeUpgrades, skillUpgrades: {}, skillTiers: {}, equippedInstances, equipmentInstances }, upgradeEffects);
+  const baseRegen = computeTotalRegen({ skills: {}, prestigeUpgrades, skillUpgrades: {}, skillTiers: {}, equippedInstances, equipmentInstances }, upgradeEffects);
+  const clickMana = computeTotalClickMana({ skills: {}, skillUpgrades: {}, skillTiers: {}, equippedInstances, equipmentInstances }, upgradeEffects);
+  const meditationMultiplier = getMeditationBonus(meditateTicks, {}, upgradeEffects.meditationEfficiency);
   const incursionStrength = getIncursionStrength(useGameStore((s) => s.day), useGameStore((s) => s.hour));
   const effectiveRegen = baseRegen * (1 - incursionStrength) * meditationMultiplier;
 
@@ -84,7 +80,7 @@ export function LeftPanel() {
       {/* 2. Spire Entry */}
       {!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 text-white" size="lg" onClick={enterSpireMode}>
+          <Button className="w-full bg-gradient-to-r from-amber-600 to-orange-600 hover:from-amber-700 hover:to-orange-600 text-white" size="lg" onClick={enterSpireMode}>
             <Mountain className="w-5 h-5 mr-2" />
             Climb the Spire
           </Button>
@@ -98,7 +94,6 @@ export function LeftPanel() {
             <CardContent className="pt-3">
               <ActionButtons
                 currentAction={currentAction}
-                currentStudyTarget={currentStudyTarget as any}
                 designProgress={designProgress}
                 designProgress2={designProgress2}
                 preparationProgress={preparationProgress}

src/app/page.tsx

@@ -1,14 +1,12 @@
 'use client';
 
 import { useEffect, useState, lazy, Suspense } from 'react';
-import type { JSX } from 'react';
 
 // Import from new modular stores
 import {
   useGameStore,
   useUIStore,
   useManaStore,
-  useSkillStore,
   useCombatStore,
   usePrestigeStore,
   useCraftingStore,
@@ -21,23 +19,16 @@ import {
 } from '@/lib/game/stores';
 import { useGameLoop } from '@/lib/game/stores/gameHooks';
 import { getUnifiedEffects } from '@/lib/game/effects';
-import {
-  getStudySpeedMultiplier,
-  getStudyCostMultiplier,
-  SPELLS_DEF,
-  ELEMENTS,
-  GUARDIANS,
-} from '@/lib/game/constants';
-import { getActiveEquipmentSpells, getTotalDPS } from '@/lib/game/computed-stats';
+import { SPELLS_DEF } from '@/lib/game/constants';
 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 } from 'lucide-react';
+
 import { TooltipProvider } from '@/components/ui/tooltip';
 import { ErrorBoundary } from '@/components/ErrorBoundary';
 import { DebugName } from '@/lib/game/debug-context';
@@ -48,7 +39,6 @@ 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 })));
 const SpellsTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.SpellsTab })));
 
 const StatsTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.StatsTab })));
@@ -143,10 +133,6 @@ export default function ManaLoopGame() {
   const initGame = useGameStore((s) => s.initGame);
   useGameLoop();
 
-  const skills = useSkillStore((s) => s.skills);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
-  const skillUpgrades = useSkillStore((s) => s.skillUpgrades);
-
   const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
   const insight = usePrestigeStore((s) => s.insight);
   const loopInsight = usePrestigeStore((s) => s.loopInsight);
@@ -154,8 +140,7 @@ export default function ManaLoopGame() {
   const rawMana = useManaStore((s) => s.rawMana);
   const meditateTicks = useManaStore((s) => s.meditateTicks);
 
-  const maxFloorReached = useCombatStore((s) => s.maxFloorReached);
-  const spells = useCombatStore((s) => s.spells);
+
   const spireMode = useCombatStore((s) => s.spireMode);
 
   const gameOver = useUIStore((s) => s.gameOver);
@@ -166,34 +151,34 @@ export default function ManaLoopGame() {
 
   // Derived state
   const upgradeEffects = getUnifiedEffects({
-    skillUpgrades,
-    skillTiers,
+    skillUpgrades: {},
+    skillTiers: {},
     equippedInstances,
     equipmentInstances
   });
 
   const maxMana = computeMaxMana({
-    skills,
+    skills: {},
     prestigeUpgrades,
-    skillUpgrades,
-    skillTiers
+    skillUpgrades: {},
+    skillTiers: {}
   }, upgradeEffects);
 
   const baseRegen = computeRegen({
-    skills,
+    skills: {},
     prestigeUpgrades,
-    skillUpgrades,
-    skillTiers
+    skillUpgrades: {},
+    skillTiers: {}
   }, upgradeEffects);
 
   const clickMana = computeClickMana({
-    skills,
+    skills: {},
     prestigeUpgrades,
-    skillUpgrades,
-    skillTiers
+    skillUpgrades: {},
+    skillTiers: {}
   });
 
-  const meditationMultiplier = getMeditationBonus(meditateTicks, skills, upgradeEffects.meditationEfficiency);
+  const meditationMultiplier = getMeditationBonus(meditateTicks, {}, upgradeEffects.meditationEfficiency);
   const incursionStrength = getIncursionStrength(day, hour);
 
   // Effective regen with incursion penalty
@@ -258,7 +243,6 @@ export default function ManaLoopGame() {
                   <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>
@@ -294,14 +278,6 @@ export default function ManaLoopGame() {
                   </ErrorBoundary>
                 </TabsContent>
 
-                <TabsContent value="skills">
-                  <ErrorBoundary fallback={<div className="p-4 text-red-400">skills tab failed to load.</div>}>
-                    <Suspense fallback={<TabLoadingFallback />}>
-                      <SkillsTab />
-                    </Suspense>
-                  </ErrorBoundary>
-                </TabsContent>
-
                 <TabsContent value="spells">
                   <ErrorBoundary fallback={<div className="p-4 text-red-400">spells tab failed to load.</div>}>
                     <Suspense fallback={<TabLoadingFallback />}>

src/components/game/CraftingProgress.tsx

@@ -4,7 +4,7 @@ import { Button } from '@/components/ui/button';
 import { Progress } from '@/components/ui/progress';
 import { Target, FlaskConical, Sparkles, Play, Pause, X } from 'lucide-react';
 import { fmt } from '@/lib/game/stores';
-import { formatStudyTime } from '@/lib/game/formatting';
+import { formatStudyTime } from '@/lib/game/utils/formatting';
 import type { EquipmentInstance, EnchantmentDesign } from '@/lib/game/types';
 
 interface CraftingProgressProps {

src/components/game/GameContext/Provider.tsx

@@ -1,7 +1,6 @@
 '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';
@@ -9,7 +8,6 @@ import { useCombatStore } from '@/lib/game/stores/combatStore';
 import { useGameStore } from '@/lib/game/stores/gameStore';
 import { computeEffects } from '@/lib/game/upgrade-effects';
 import { hasSpecial, SPECIAL_EFFECTS } from '@/lib/game/special-effects';
-import { getStudySpeedMultiplier, getStudyCostMultiplier } from '@/lib/game/constants';
 import {
   computeMaxMana,
   computeRegen,
@@ -32,7 +30,6 @@ 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>,
@@ -62,24 +59,6 @@ function createUnifiedStore(
     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,
@@ -131,7 +110,6 @@ function createUnifiedStore(
 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();
@@ -139,27 +117,24 @@ export function GameProvider({ children }: { children: ReactNode }) {
 
   // Create unified store object for backward compatibility
   const unifiedStore = useMemo(
-    () => createUnifiedStore(gameStore, skillState, manaState, prestigeState, uiState, combatState),
-    [gameStore, skillState, manaState, prestigeState, uiState, combatState]
+    () => createUnifiedStore(gameStore, manaState, prestigeState, uiState, combatState),
+    [gameStore, manaState, prestigeState, uiState, combatState]
   );
 
   // Computed effects from upgrades
   const upgradeEffects = useMemo(
-    () => computeEffects(skillState.skillUpgrades || {}, skillState.skillTiers || {}),
-    [skillState.skillUpgrades, skillState.skillTiers]
+    () => computeEffects({}, {}),
+    []
   );
 
   // 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]);
+  }), [prestigeState, manaState, gameStore.incursionStrength]);
 
   // Derived stats
   const maxMana = useMemo(
@@ -182,8 +157,8 @@ export function GameProvider({ children }: { children: ReactNode }) {
   const activeSpellDef = SPELLS_DEF[combatState.activeSpell];
 
   const meditationMultiplier = useMemo(
-    () => getMeditationBonus(manaState.meditateTicks, skillState.skills, upgradeEffects.meditationEfficiency),
-    [manaState.meditateTicks, skillState.skills, upgradeEffects.meditationEfficiency]
+    () => getMeditationBonus(manaState.meditateTicks, {}, upgradeEffects.meditationEfficiency),
+    [manaState.meditateTicks, upgradeEffects.meditationEfficiency]
   );
 
   const incursionStrength = useMemo(
@@ -191,15 +166,9 @@ export function GameProvider({ children }: { children: ReactNode }) {
     [gameStore.day, gameStore.hour]
   );
 
-  const studySpeedMult = useMemo(
-    () => getStudySpeedMultiplier(skillState.skills),
-    [skillState.skills]
-  );
+  const studySpeedMult = 1;
 
-  const studyCostMult = useMemo(
-    () => getStudyCostMultiplier(skillState.skills),
-    [skillState.skills]
-  );
+  const studyCostMult = 1;
 
   // Effective regen calculations
   const effectiveRegenWithSpecials = baseRegen * (1 - incursionStrength);
@@ -230,15 +199,15 @@ export function GameProvider({ children }: { children: ReactNode }) {
   const dps = useMemo(() => {
     if (!activeSpellDef) return 0;
     const baseDmg = calcDamage(
-      { skills: skillState.skills, signedPacts: prestigeState.signedPacts },
+      { 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 attackSpeed = (1 + 0 * 0.05) * upgradeEffects.attackSpeedMultiplier;
     const castSpeed = activeSpellDef.castSpeed || 1;
     return dmgWithEffects * attackSpeed * castSpeed;
-  }, [activeSpellDef, skillState.skills, prestigeState.signedPacts, floorElem, upgradeEffects, combatState.activeSpell]);
+  }, [activeSpellDef, prestigeState.signedPacts, floorElem, upgradeEffects, combatState.activeSpell]);
 
   // Helper functions
   const canCastSpell = (spellId: string): boolean => {
@@ -249,7 +218,6 @@ export function GameProvider({ children }: { children: ReactNode }) {
 
   const value: GameContextValue = {
     store: unifiedStore,
-    skillStore: skillState,
     manaStore: manaState,
     prestigeStore: prestigeState,
     uiStore: uiState,

src/components/game/GameContext/types.ts

@@ -1,5 +1,4 @@
 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';
@@ -33,33 +32,6 @@ export interface UnifiedStore {
   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;
@@ -112,7 +84,6 @@ export interface GameContextValue {
   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>;

src/components/game/SpellsTab.tsx

@@ -1,13 +1,11 @@
 'use client';
 
 import { canAffordSpellCost, fmt } from '@/lib/game/stores';
-import { useCombatStore, useSkillStore, useManaStore } from '@/lib/game/stores';
+import { useCombatStore, useManaStore } from '@/lib/game/stores';
 import { ELEMENTS, SPELLS_DEF } from '@/lib/game/constants';
-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';
 
 // Format spell cost for display
 function formatSpellCost(cost: { type: 'raw' | 'element'; element?: string; amount: number }): string {
@@ -26,21 +24,12 @@ function getSpellCostColor(cost: { type: 'raw' | 'element'; element?: string; am
   return ELEMENTS[cost.element || '']?.color || '#9CA3AF';
 }
 
-// Format study time
-function formatStudyTime(hours: number): string {
-  if (hours < 1) return `${Math.round(hours * 60)}m`;
-  return `${hours.toFixed(1)}h`;
-}
-
 export function SpellsTab() {
   const spells = useCombatStore((s) => s.spells);
   const activeSpell = useCombatStore((s) => s.activeSpell);
   const setSpell = useCombatStore((s) => s.setSpell);
-  const currentStudyTarget = useSkillStore((s) => s.currentStudyTarget);
-  const setCurrentStudyTarget = useSkillStore((s) => s.setCurrentStudyTarget);
   const rawMana = useManaStore((s) => s.rawMana);
   const elements = useManaStore((s) => s.elements);
-  const { studySpeedMult, studyCostMult } = useStudyStats();
 
   const spellTiers = [0, 1, 2, 3, 4];
 
@@ -60,23 +49,14 @@ export function SpellsTab() {
               {spellsInTier.map(([id, def]) => {
                 const state = spells?.[id];
                 const learned = state?.learned;
-                const isStudying = currentStudyTarget?.id === id;
                 const elemDef = def.elem === 'raw' ? null : ELEMENTS[def.elem];
-                const baseStudyTime = def.studyTime || (def.tier * 4);
                 const isActive = activeSpell === id;
                 const canCast = learned && canAffordSpellCost(def.cost, rawMana, elements);
 
-                // Apply skill modifiers
-                const studyTime = baseStudyTime / studySpeedMult;
-                const unlockCost = Math.floor(def.unlock * studyCostMult);
-                
-                // Can start studying?
-                const canStudy = !learned && !isStudying && rawMana >= unlockCost;
-                
                 return (
                   <Card
                     key={id}
-                    className={`bg-gray-900/80 border-gray-700 ${learned ? '' : 'opacity-75'} ${isStudying ? 'border-purple-500' : ''} ${canCast ? 'ring-1 ring-green-500/30' : ''}`}
+                    className={`bg-gray-900/80 border-gray-700 ${learned ? '' : 'opacity-75'} ${canCast ? 'ring-1 ring-green-500/30' : ''}`}
                   >
                     <CardHeader className="pb-2">
                       <div className="flex items-center justify-between">
@@ -128,36 +108,9 @@ export function SpellsTab() {
                             </Button>
                           )}
                         </div>
-                      ) : isStudying ? (
-                        <div className="space-y-1">
-                          <Progress 
-                            value={Math.min(100, ((state?.studyProgress || 0) / studyTime) * 100)} 
-                            className="h-2 bg-gray-800" 
-                          />
-                          <div className="text-xs text-purple-400">
-                            Studying... {formatStudyTime(state?.studyProgress || 0)}/{formatStudyTime(studyTime)}
-                          </div>
-                        </div>
                       ) : (
-                        <div className="space-y-2">
-                          <div className="text-xs text-gray-500">
-                            <span className={studySpeedMult > 1 ? 'text-green-400' : ''}>
-                              Study: {formatStudyTime(studyTime)}{studySpeedMult > 1 && <span className="text-xs ml-1">({Math.round(studySpeedMult * 100)}% speed)</span>}
-                            </span>
-                            {' • '}
-                            <span className={studyCostMult < 1 ? 'text-green-400' : ''}>
-                              Cost: {fmt(unlockCost)} mana{studyCostMult < 1 && <span className="text-xs ml-1">({Math.round(studyCostMult * 100)}% cost)</span>}
-                            </span>
-                          </div>
-                          <Button
-                            size="sm"
-                            variant={canStudy ? 'default' : 'outline'}
-                            disabled={!canStudy}
-                            className={canStudy ? 'bg-purple-600 hover:bg-purple-700' : 'opacity-50'}
-                            onClick={() => setCurrentStudyTarget({ type: 'spell', id, progress: 0, required: studyTime })}
-                          >
-                            Start Study ({fmt(unlockCost)} mana)
-                          </Button>
+                        <div className="text-xs text-gray-500">
+                          Not yet learned
                         </div>
                       )}
                     </CardContent>

src/components/game/StatsTab.tsx

@@ -1,59 +1,24 @@
 'use client';
 
-import { useSkillStore, usePrestigeStore, fmt, fmtDec } from '@/lib/game/stores';
+import { usePrestigeStore, fmt, fmtDec } from '@/lib/game/stores';
 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 { 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 skillUpgrades = useSkillStore((s) => s.skillUpgrades);
-  const skills = useSkillStore((s) => s.skills);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
   const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
 
   const manaStats = useManaStats();
   const combatStats = useCombatStats();
   const studyStats = useStudyStats();
 
-  // Compute element max
-  const elemMax = (() => {
-    const ea = skillTiers?.elemAttune || 1;
-    const tieredSkillId = ea > 1 ? `elemAttune_t${ea}` : 'elemAttune';
-    const level = skills[tieredSkillId] || skills.elemAttune || 0;
-    const tierMult = getTierMultiplier(tieredSkillId);
-    return 10 + level * 50 * tierMult + (prestigeUpgrades.elementalAttune || 0) * 25;
-  })();
-
-  // Get all selected skill upgrades
-  const getAllSelectedUpgrades = (): { skillId: string; upgrade: SkillUpgradeChoice }[] => {
-    const upgrades: { skillId: string; upgrade: SkillUpgradeChoice }[] = [];
-    for (const [skillId, selectedIds] of Object.entries(skillUpgrades)) {
-      const baseSkillId = skillId.includes('_t') ? skillId.split('_t')[0] : skillId;
-      const path = SKILL_EVOLUTION_PATHS[baseSkillId];
-      if (!path) continue;
-      for (const tier of path.tiers) {
-        if (tier.skillId === skillId) {
-          for (const upgradeId of selectedIds) {
-            const upgrade = (tier as any).upgrades?.find((u: any) => u.id === upgradeId);
-            if (upgrade) {
-              upgrades.push({ skillId, upgrade });
-            }
-          }
-        }
-      }
-    }
-    return upgrades;
-  };
-
-  const selectedUpgrades = getAllSelectedUpgrades();
+  // Compute element max (base + prestige only)
+  const elemMax = 10 + (prestigeUpgrades.elementalAttune || 0) * 25;
 
   return (
     <div className="space-y-4">
@@ -65,7 +30,6 @@ export function StatsTab() {
         meditationMultiplier={manaStats.meditationMultiplier}
         upgradeEffects={manaStats.upgradeEffects}
         elemMax={elemMax}
-        selectedUpgrades={selectedUpgrades}
       />
       <CombatStatsSection
         activeSpellDef={combatStats.activeSpellDef}
@@ -82,7 +46,6 @@ export function StatsTab() {
       <ElementStatsSection
         elemMax={elemMax}
       />
-      <ActiveUpgradesSection selectedUpgrades={selectedUpgrades} />
       <LoopStatsSection />
     </div>
   );

src/components/game/StatsTab/ActiveUpgradesSection.tsx

@@ -1,71 +0,0 @@
-'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-[var(--bg-panel)] border-[var(--border-subtle)]">
-        <CardHeader className="pb-2">
-          <CardTitle className="text-[var(--mana-light)] game-panel-title text-xs flex items-center gap-2">
-            <Star className="w-4 h-4" />
-            Active Skill Upgrades (0)
-          </CardTitle>
-        </CardHeader>
-        <CardContent>
-          <div style={{ color: 'var(--text-muted)' }} className="text-sm">No skill upgrades selected yet. Level skills to 5 or 10 to choose upgrades.</div>
-        </CardContent>
-      </Card>
-    );
-  }
-
-  return (
-    <Card className="bg-[var(--bg-panel)] border-[var(--border-subtle)]">
-      <CardHeader className="pb-2">
-        <CardTitle className="text-[var(--mana-light)] 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 transition-colors" style={{ border: '1px solid var(--mana-light)/30', background: 'var(--mana-light)/10' }}>
-              <div className="flex items-center justify-between">
-                <span style={{ color: 'var(--mana-light)' }} className="text-sm font-semibold">{upgrade.name}</span>
-                <Badge variant="outline" className="text-xs" style={{ color: 'var(--text-muted)', borderColor: 'var(--border-subtle)' }}>
-                  {SKILLS_DEF[skillId]?.name || skillId}
-                </Badge>
-              </div>
-              <div className="text-xs mt-1" style={{ color: 'var(--text-muted)' }}>{upgrade.desc}</div>
-              {upgrade.effect.type === 'multiplier' && (
-                <div className="text-xs mt-1" style={{ color: 'var(--color-success)' }}>
-                  +{Math.round((upgrade.effect.value! - 1) * 100)}% {upgrade.effect.stat}
-                </div>
-              )}
-              {upgrade.effect.type === 'bonus' && (
-                <div className="text-xs mt-1" style={{ color: 'var(--mana-water)' }}>
-                  +{upgrade.effect.value} {upgrade.effect.stat}
-                </div>
-              )}
-              {upgrade.effect.type === 'special' && (
-                <div className="text-xs mt-1" style={{ color: 'var(--mana-crystal)' }}>
-                  ⚡ {upgrade.effect.specialDesc || 'Special effect active'}
-                </div>
-              )}
-            </div>
-          ))}
-        </div>
-      </CardContent>
-    </Card>
-  );
-}

src/components/game/StatsTab/CombatStatsSection.tsx

@@ -3,8 +3,6 @@
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { Swords } from 'lucide-react';
 import { fmt, fmtDec } from '@/lib/game/stores';
-import { useSkillStore } from '@/lib/game/stores';
-import { getUnifiedEffects } from '@/lib/game/effects';
 
 interface CombatStatsSectionProps {
   activeSpellDef: any;
@@ -12,17 +10,6 @@ interface CombatStatsSectionProps {
 }
 
 export function CombatStatsSection({ activeSpellDef, pactMultiplier }: CombatStatsSectionProps) {
-  const skills = useSkillStore((s) => s.skills);
-  const skillUpgrades = useSkillStore((s) => s.skillUpgrades);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
-  
-  const upgradeEffects = getUnifiedEffects({
-    skillUpgrades,
-    skillTiers,
-    equippedInstances: {},
-    equipmentInstances: {},
-  });
-  
   return (
     <Card className="bg-[var(--bg-panel)] border-[var(--border-subtle)]">
       <CardHeader className="pb-2">
@@ -38,36 +25,6 @@ export function CombatStatsSection({ activeSpellDef, pactMultiplier }: CombatSta
               <span style={{ color: 'var(--text-muted)' }}>Active Spell Base Damage:</span>
               <span style={{ color: 'var(--text-secondary)' }}>{activeSpellDef?.dmg || 5}</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Combat Training Bonus:</span>
-              <span style={{ color: 'var(--mana-fire)' }}>+{(skills.combatTrain || 0) * 5}</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Arcane Fury Multiplier:</span>
-              <span style={{ color: 'var(--mana-fire)' }}>×{fmtDec(1 + (skills.arcaneFury || 0) * 0.1, 2)}</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Elemental Mastery:</span>
-              <span style={{ color: 'var(--mana-fire)' }}>×{fmtDec(1 + (skills.elementalMastery || 0) * 0.15, 2)}</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Guardian Bane:</span>
-              <span style={{ color: 'var(--mana-fire)' }}>×{fmtDec(1 + (skills.guardianBane || 0) * 0.2, 2)} (vs guardians)</span>
-            </div>
-          </div>
-          <div className="space-y-2">
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Critical Hit Chance:</span>
-              <span style={{ color: 'var(--mana-light)' }}>{((skills.precision || 0) * 5)}%</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Critical Multiplier:</span>
-              <span style={{ color: 'var(--mana-light)' }}>1.5x</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Spell Echo Chance:</span>
-              <span style={{ color: 'var(--mana-light)' }}>{((skills.spellEcho || 0) * 10)}%</span>
-            </div>
             <div className="flex justify-between text-sm">
               <span style={{ color: 'var(--text-muted)' }}>Pact Multiplier:</span>
               <span style={{ color: 'var(--mana-light)' }}>×{fmtDec(pactMultiplier, 2)}</span>
@@ -77,6 +34,12 @@ export function CombatStatsSection({ activeSpellDef, pactMultiplier }: CombatSta
               <span style={{ color: 'var(--mana-fire)' }}>{fmt(activeSpellDef ? activeSpellDef.dmg * pactMultiplier : 0)}</span>
             </div>
           </div>
+          <div className="space-y-2">
+            <div className="flex justify-between text-sm">
+              <span style={{ color: 'var(--text-muted)' }}>Critical Multiplier:</span>
+              <span style={{ color: 'var(--mana-light)' }}>1.5x</span>
+            </div>
+          </div>
         </div>
       </CardContent>
     </Card>

src/components/game/StatsTab/ElementStatsSection.tsx

@@ -4,28 +4,17 @@ 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/stores';
-import { useSkillStore, usePrestigeStore, useManaStore } from '@/lib/game/stores';
+import { usePrestigeStore, useManaStore } from '@/lib/game/stores';
 
 interface ElementStatsSectionProps {
   elemMax: number;
 }
 
 export function ElementStatsSection({ elemMax }: ElementStatsSectionProps) {
-  const skills = useSkillStore((s) => s.skills);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
   const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
   const elements = useManaStore((s) => s.elements);
 
-  const getElemAttunementBonus = () => {
-    const ea = skillTiers?.elemAttune || 1;
-    const tieredSkillId = ea > 1 ? `elemAttune_t${ea}` : 'elemAttune';
-    const level = skills[tieredSkillId] || skills.elemAttune || 0;
-    const tierMult = getTierMultiplier(tieredSkillId);
-    return level * 50 * tierMult;
-  };
-  
   return (
     <Card className="bg-[var(--bg-panel)] border-[var(--border-subtle)]">
       <CardHeader className="pb-2">
@@ -41,10 +30,6 @@ export function ElementStatsSection({ elemMax }: ElementStatsSectionProps) {
               <span style={{ color: 'var(--text-muted)' }}>Element Capacity:</span>
               <span style={{ color: 'var(--color-success)' }}>{elemMax}</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Elem. Attunement Bonus:</span>
-              <span style={{ color: 'var(--color-success)' }}>+{getElemAttunementBonus()}</span>
-            </div>
             <div className="flex justify-between text-sm">
               <span style={{ color: 'var(--text-muted)' }}>Prestige Attunement:</span>
               <span style={{ color: 'var(--color-success)' }}>+{(prestigeUpgrades.elementalAttune || 0) * 25}</span>
@@ -55,10 +40,6 @@ export function ElementStatsSection({ elemMax }: ElementStatsSectionProps) {
               <span style={{ color: 'var(--text-muted)' }}>Unlocked Elements:</span>
               <span style={{ color: 'var(--color-success)' }}>{Object.values(elements || {}).filter((e: any) => e.unlocked).length} / {Object.keys(ELEMENTS).length}</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Elem. Crafting Bonus:</span>
-              <span style={{ color: 'var(--color-success)' }}>×{fmtDec(1 + (skills.elemCrafting || 0) * 0.25, 2)}</span>
-            </div>
           </div>
         </div>
         <Separator className="bg-[var(--border-subtle)] my-3" />

src/components/game/StatsTab/LoopStatsSection.tsx

@@ -4,11 +4,10 @@ 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/stores';
-import { useCombatStore, usePrestigeStore, useManaStore, useSkillStore } from '@/lib/game/stores';
+import { useCombatStore, usePrestigeStore, useManaStore } from '@/lib/game/stores';
 
 export function LoopStatsSection() {
   const spells = useCombatStore((s) => s.spells);
-  const skills = useSkillStore((s) => s.skills);
   const insight = usePrestigeStore((s) => s.insight);
   const totalInsight = usePrestigeStore((s) => s.totalInsight);
   const maxFloorReached = useCombatStore((s) => s.maxFloorReached);
@@ -17,7 +16,6 @@ export function LoopStatsSection() {
   const memorySlots = usePrestigeStore((s) => s.memorySlots);
 
   const spellsLearned = Object.values(spells || {}).filter((s: any) => s.learned).length;
-  const totalSkillLevels = Object.values(skills || {}).reduce((a: number, b: number) => a + b, 0);
 
   return (
     <Card className="bg-[var(--bg-panel)] border-[var(--border-subtle)]">
@@ -52,10 +50,6 @@ export function LoopStatsSection() {
             <div className="text-xl font-bold text-[var(--text-secondary)] game-mono">{spellsLearned}</div>
             <div className="text-xs" style={{ color: 'var(--text-muted)' }}>Spells Learned</div>
           </div>
-          <div className="p-3 bg-[var(--bg-sunken)]/50 rounded text-center">
-            <div className="text-xl font-bold text-[var(--text-secondary)] game-mono">{totalSkillLevels}</div>
-            <div className="text-xs" style={{ color: 'var(--text-muted)' }}>Total Skill Levels</div>
-          </div>
           <div className="p-3 bg-[var(--bg-sunken)]/50 rounded text-center">
             <div className="text-xl font-bold text-[var(--text-secondary)] game-mono">{fmt(totalManaGathered)}</div>
             <div className="text-xs" style={{ color: 'var(--text-muted)' }}>Total Mana Gathered</div>

src/components/game/StatsTab/ManaStatsSection.tsx

@@ -3,8 +3,6 @@
 import { fmt, fmtDec } from '@/lib/game/stores';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { Droplet } from 'lucide-react';
-import type { SkillUpgradeChoice } from '@/lib/game/types';
-import { useSkillStore, usePrestigeStore } from '@/lib/game/stores';
 
 interface ManaStatsSectionProps {
   maxMana: number;
@@ -14,7 +12,6 @@ interface ManaStatsSectionProps {
   meditationMultiplier: number;
   upgradeEffects: any;
   elemMax: number;
-  selectedUpgrades: { skillId: string; upgrade: SkillUpgradeChoice }[];
 }
 
 export function ManaStatsSection({
@@ -25,16 +22,7 @@ export function ManaStatsSection({
   meditationMultiplier,
   upgradeEffects,
   elemMax,
-  selectedUpgrades,
 }: ManaStatsSectionProps) {
-  const skills = useSkillStore((s) => s.skills);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
-  const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
-  
-  const getTierMultiplier = (skillId: string) => {
-    return 1;
-  };
-
   return (
     <Card className="bg-[var(--bg-panel)] border-[var(--border-subtle)]">
       <CardHeader className="pb-2">
@@ -50,22 +38,6 @@ export function ManaStatsSection({
               <span style={{ color: 'var(--text-muted)' }}>Base Max Mana:</span>
               <span style={{ color: 'var(--text-secondary)' }}>100</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Mana Well Bonus:</span>
-              <span style={{ color: 'var(--mana-water)' }}>
-                {(() => {
-                  const mw = skillTiers?.manaWell || 1;
-                  const tieredSkillId = mw > 1 ? `manaWell_t${mw}` : 'manaWell';
-                  const level = (skills || {})[tieredSkillId] || (skills || {}).manaWell || 0;
-                  const tierMult = getTierMultiplier(tieredSkillId);
-                  return `+${fmt(level * 100 * tierMult)} (${level} lvl × 100 × ${tierMult}x tier)`;
-                })()}
-              </span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Prestige Mana Well:</span>
-              <span style={{ color: 'var(--mana-water)' }}>+{fmt((prestigeUpgrades.manaWell || 0) * 500)}</span>
-            </div>
             {upgradeEffects.maxManaBonus > 0 && (
               <div className="flex justify-between text-sm">
                 <span style={{ color: 'var(--mana-light)' }}>Upgrade Mana Bonus:</span>
@@ -88,30 +60,6 @@ export function ManaStatsSection({
               <span style={{ color: 'var(--text-muted)' }}>Base Regen:</span>
               <span style={{ color: 'var(--text-secondary)' }}>2/hr</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Mana Flow Bonus:</span>
-              <span style={{ color: 'var(--mana-water)' }}>
-                {(() => {
-                  const mf = skillTiers?.manaFlow || 1;
-                  const tieredSkillId = mf > 1 ? `manaFlow_t${mf}` : 'manaFlow';
-                  const level = skills[tieredSkillId] || skills.manaFlow || 0;
-                  const tierMult = getTierMultiplier(tieredSkillId);
-                  return `+${fmtDec(level * 1 * tierMult, 2)}/hr (${level} lvl × 1 × ${tierMult}x tier)`;
-                })()}
-              </span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Mana Spring Bonus:</span>
-              <span style={{ color: 'var(--mana-water)' }}>+{(skills.manaSpring || 0) * 2}/hr</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Prestige Mana Flow:</span>
-              <span style={{ color: 'var(--mana-water)' }}>+{fmtDec((prestigeUpgrades.manaFlow || 0) * 0.5)}/hr</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Temporal Echo:</span>
-              <span style={{ color: 'var(--mana-water)' }}>×{fmtDec(1 + (prestigeUpgrades.temporalEcho || 0) * 0.1, 2)}</span>
-            </div>
             <div className="flex justify-between text-sm font-semibold border-t border-[var(--border-subtle)] pt-2">
               <span style={{ color: 'var(--text-secondary)' }}>Base Regen:</span>
               <span style={{ color: 'var(--mana-water)' }}>{fmtDec(baseRegen, 2)}/hr</span>
@@ -142,18 +90,6 @@ export function ManaStatsSection({
               <span style={{ color: 'var(--text-muted)' }}>Click Mana Value:</span>
               <span style={{ color: 'var(--mana-crystal)' }}>+{clickMana}</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Mana Tap Bonus:</span>
-              <span style={{ color: 'var(--mana-crystal)' }}>+{skills.manaTap || 0}</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Mana Surge Bonus:</span>
-              <span style={{ color: 'var(--mana-crystal)' }}>+{(skills.manaSurge || 0) * 3}</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Mana Overflow:</span>
-              <span style={{ color: 'var(--mana-crystal)' }}>×{fmtDec(1 + (skills.manaOverflow || 0) * 0.25, 2)}</span>
-            </div>
           </div>
           <div className="space-y-2">
             <div className="flex justify-between text-sm">

src/components/game/StatsTab/StudyStatsSection.tsx

@@ -3,7 +3,6 @@
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { BookOpen } from 'lucide-react';
 import { fmtDec } from '@/lib/game/stores';
-import { useSkillStore } from '@/lib/game/stores';
 
 interface StudyStatsSectionProps {
   studySpeedMult: number;
@@ -11,8 +10,6 @@ interface StudyStatsSectionProps {
 }
 
 export function StudyStatsSection({ studySpeedMult, studyCostMult }: StudyStatsSectionProps) {
-  const skills = useSkillStore((s) => s.skills);
-  
   return (
     <Card className="bg-[var(--bg-panel)] border-[var(--border-subtle)]">
       <CardHeader className="pb-2">
@@ -28,25 +25,17 @@ export function StudyStatsSection({ studySpeedMult, studyCostMult }: StudyStatsS
               <span style={{ color: 'var(--text-muted)' }}>Study Speed:</span>
               <span style={{ color: 'var(--mana-crystal)' }}>×{fmtDec(studySpeedMult, 2)}</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Quick Learner Bonus:</span>
-              <span style={{ color: 'var(--mana-crystal)' }}>+{((skills.quickLearner || 0) * 10)}%</span>
-            </div>
           </div>
           <div className="space-y-2">
             <div className="flex justify-between text-sm">
               <span style={{ color: 'var(--text-muted)' }}>Study Cost:</span>
               <span style={{ color: 'var(--mana-crystal)' }}>{Math.round(studyCostMult * 100)}%</span>
             </div>
-            <div className="flex justify-between text-sm">
-              <span style={{ color: 'var(--text-muted)' }}>Focused Mind Bonus:</span>
-              <span style={{ color: 'var(--mana-crystal)' }}>-{((skills.focusedMind || 0) * 5)}%</span>
-            </div>
           </div>
           <div className="space-y-2">
             <div className="flex justify-between text-sm">
               <span style={{ color: 'var(--text-muted)' }}>Progress Retention:</span>
-              <span style={{ color: 'var(--mana-crystal)' }}>{Math.round((1 + (skills.knowledgeRetention || 0) * 0.2) * 100)}%</span>
+              <span style={{ color: 'var(--mana-crystal)' }}>100%</span>
             </div>
           </div>
         </div>

src/components/game/StudyProgress.tsx

@@ -4,7 +4,7 @@ import { Button } from '@/components/ui/button';
 import { Progress } from '@/components/ui/progress';
 import { BookOpen, X } from 'lucide-react';
 import { SKILLS_DEF, SPELLS_DEF } from '@/lib/game/constants';
-import { formatStudyTime } from '@/lib/game/formatting';
+import { formatStudyTime } from '@/lib/game/utils/formatting';
 import type { StudyTarget } from '@/lib/game/types';
 
 interface StudyProgressProps {

src/components/game/TimeDisplay.tsx

@@ -1,7 +1,7 @@
 'use client';
 
 import { fmt } from '@/lib/game/stores';
-import { formatHour } from '@/lib/game/formatting';
+import { formatHour } from '@/lib/game/utils/formatting';
 
 interface TimeDisplayProps {
   day: number;

src/components/game/crafting/EnchantmentDesigner.tsx

@@ -23,7 +23,6 @@ import {
   removeEffectFromDesign,
 } from './EnchantmentDesigner/utils';
 import { useCraftingStore } from '@/lib/game/stores';
-import { useSkillStore } from '@/lib/game/stores';
 
 export function EnchantmentDesigner({
   selectedEquipmentType,
@@ -44,15 +43,8 @@ export function EnchantmentDesigner({
   const unlockedEffects = useCraftingStore((s) => s.unlockedEffects);
   const equipmentInstances = useCraftingStore((s) => s.equipmentInstances);
 
-  // Skill store selectors
-  const skills = useSkillStore((s) => s.skills);
-  const skillUpgrades = useSkillStore((s) => s.skillUpgrades);
-
-  const enchantingLevel = skills?.enchanting || 0;
-  const efficiencyBonus = (skillUpgrades?.['efficientEnchant'] || []).length * 0.05 || 0;
-
   // Calculate total capacity cost for current design
-  const designCapacityCost = calculateDesignCapacityCost(selectedEffects, efficiencyBonus);
+  const designCapacityCost = calculateDesignCapacityCost(selectedEffects, 0);
 
   // Get capacity limit for selected equipment type
   const selectedEquipmentCapacity = getEquipmentCapacity(selectedEquipmentType);
@@ -62,7 +54,7 @@ export function EnchantmentDesigner({
 
   // Add effect to design
   const addEffect = (effectId: string) => {
-    addEffectToDesign(effectId, selectedEffects, efficiencyBonus, setSelectedEffects);
+    addEffectToDesign(effectId, selectedEffects, 0, setSelectedEffects);
   };
 
   // Remove effect from design
@@ -117,8 +109,8 @@ export function EnchantmentDesigner({
           setSelectedEffects={setSelectedEffects}
           availableEffects={availableEffects}
           incompatibleEffects={incompatibleEffects}
-          enchantingLevel={enchantingLevel}
-          efficiencyBonus={efficiencyBonus}
+          enchantingLevel={0}
+          efficiencyBonus={0}
           designProgress={designProgress}
           addEffect={addEffect}
           removeEffect={removeEffect}

src/components/game/crafting/EnchantmentPreparer.tsx

@@ -14,7 +14,7 @@ import { EQUIPMENT_TYPES } from '@/lib/game/data/equipment';
 import type { EquipmentInstance, AppliedEnchantment, LootInventory, EquipmentCraftingProgress } from '@/lib/game/types';
 import type { EquipmentSlot } from '@/lib/game/types';
 import { fmt } from '@/lib/game/stores';
-import { useGameStore, useCraftingStore, useManaStore, useSkillStore } from '@/lib/game/stores';
+import { useGameStore, useCraftingStore, useManaStore } from '@/lib/game/stores';
 import { useGameToast } from '@/components/game/GameToast';
 
 export interface EnchantmentPreparerProps {
@@ -31,7 +31,6 @@ export function EnchantmentPreparer({
   const equipmentInstances = useCraftingStore((s) => s.equipmentInstances);
   const preparationProgress = useCraftingStore((s) => s.preparationProgress);
   const rawMana = useManaStore((s) => s.rawMana);
-  const skills = useSkillStore((s) => s.skills);
   const startPreparing = useCraftingStore((s) => s.startPreparing);
   const cancelPreparation = useCraftingStore((s) => s.cancelPreparation);
 

src/components/game/index.ts

@@ -2,11 +2,9 @@
 // Re-exports all game tab components for cleaner imports
 
 // Tab components
-export { CraftingTab } from './tabs/CraftingTab';
-export { SpireTab } from './tabs/SpireTab';
-export { SpellsTab } from './tabs/SpellsTab';
-export { SkillsTab } from './SkillsTab';
-export { StatsTab } from './tabs/StatsTab';
+export { CraftingTab } from './crafting';
+export { SpellsTab } from './SpellsTab';
+export { StatsTab } from './StatsTab';
 
 // UI components
 export { ActionButtons } from './ActionButtons';

src/components/game/layout/Header.tsx

@@ -1,45 +0,0 @@
-'use client';
-
-import { fmt } from '@/lib/game/stores';
-import { formatHour } from '@/lib/game/formatting';
-import { TimeDisplay } from '@/components/game/TimeDisplay';
-
-interface HeaderProps {
-  day: number;
-  hour: number;
-  insight: number;
-}
-
-export function Header({ day, hour, insight }: HeaderProps) {
-  return (
-    <header className="sticky top-0 z-50 bg-[var(--bg-surface)]/95 backdrop-blur-sm border-b border-[var(--border-subtle)] px-4 py-2">
-      <div className="flex items-center justify-between">
-        {/* Game Title - always visible */}
-        <h1 className="text-xl font-bold game-title tracking-wider">MANA LOOP</h1>
-        
-        {/* Desktop header content */}
-        <div className="hidden md:flex items-center gap-4">
-          <TimeDisplay 
-            day={day}
-            hour={hour}
-            insight={insight}
-          />
-        </div>
-        
-        {/* Mobile header content - compact */}
-        <div className="flex md:hidden items-center gap-2">
-          <div className="text-center">
-            <div className="text-sm font-bold game-mono text-[var(--mana-light)]">
-              D{day} {formatHour(hour)}
-            </div>
-            <div className="text-xs text-[var(--text-secondary)]">
-              {fmt(insight)} 💎
-            </div>
-          </div>
-        </div>
-      </div>
-    </header>
-  );
-}
-
-Header.displayName = "Header";

src/components/game/layout/TabBar.tsx

@@ -1,142 +0,0 @@
-'use client';
-
-import { useState } from 'react';
-import { TabsTrigger } from '@/components/ui/tabs';
-import { Separator } from '@/components/ui/separator';
-import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/components/ui/tooltip';
-import { 
-  Mountain, 
-  Sparkles, 
-  Brain, 
-  Wand2, 
-  Bone, 
-  Shield, 
-  Hammer, 
-  Gem, 
-  Trophy, 
-  FlaskConical, 
-  BarChart3, 
-  BookOpen, 
-  Wrench
-} from 'lucide-react';
-
-interface TabBarProps {
-  activeTab: string;
-  onTabChange: (value: string) => void;
-  isMobile?: boolean;
-}
-
-// Tab configuration with groups
-const TAB_GROUPS = [
-  {
-    name: 'World',
-    tabs: [
-      { value: 'spire', label: 'Spire', icon: Mountain, mobileLabel: 'Spire' },
-      { value: 'attunements', label: 'Attune', icon: Sparkles, mobileLabel: 'Attune' },
-    ]
-  },
-  {
-    name: 'Power',
-    tabs: [
-      { value: 'skills', label: 'Skills', icon: Brain, mobileLabel: 'Skills' },
-      { value: 'spells', label: 'Spells', icon: Wand2, mobileLabel: 'Spells' },
-      { value: 'golemancy', label: 'Golems', icon: Bone, mobileLabel: 'Golems' },
-    ]
-  },
-  {
-    name: 'Gear',
-    tabs: [
-      { value: 'equipment', label: 'Gear', icon: Shield, mobileLabel: 'Gear' },
-      { value: 'crafting', label: 'Craft', icon: Hammer, mobileLabel: 'Craft' },
-      { value: 'loot', label: 'Loot', icon: Gem, mobileLabel: 'Loot' },
-    ]
-  },
-  {
-    name: 'Meta',
-    tabs: [
-      { value: 'achievements', label: 'Achieve', icon: Trophy, mobileLabel: 'Achieve' },
-      { value: 'stats', label: 'Stats', icon: BarChart3, mobileLabel: 'Stats' },
-      { value: 'debug', label: 'Debug', icon: Wrench, mobileLabel: 'Debug' },
-    ]
-  }
-];
-
-export function TabBar({ activeTab, onTabChange, isMobile = false }: TabBarProps) {
-  if (isMobile) {
-    return (
-      <TooltipProvider>
-        <div className="flex overflow-x-auto scrollbar-thin gap-1 pb-2" style={{ flexWrap: 'nowrap' }}>
-          {TAB_GROUPS.map((group, groupIndex) => (
-            <div key={group.name} className="flex items-center flex-shrink-0">
-              {groupIndex > 0 && (
-                <Separator orientation="vertical" className="h-6 mx-1 bg-[var(--border-subtle)]" />
-              )}
-              {group.tabs.map((tab) => {
-                const Icon = tab.icon;
-                const isActive = activeTab === tab.value;
-                return (
-                  <Tooltip key={tab.value}>
-                    <TooltipTrigger asChild>
-                      <button
-                        onClick={() => onTabChange(tab.value)}
-                        className={`
-                          flex items-center justify-center p-2 flex-shrink-0 transition-all border text-[var(--font-display)]
-                          ${isActive 
-                            ? 'border-[var(--border-accent)] bg-[var(--bg-raised)] text-[var(--interactive-primary)]'
-                            : 'border-transparent text-[var(--text-secondary)] hover:text-[var(--text-primary)] hover:bg-[var(--bg-panel)] hover:border-[var(--border-subtle)]'
-                          }
-                        `}
-                        aria-label={tab.label}
-                      >
-                        <Icon className="w-5 h-5" />
-                      </button>
-                    </TooltipTrigger>
-                    <TooltipContent side="bottom">
-                      <p>{tab.label}</p>
-                    </TooltipContent>
-                  </Tooltip>
-                );
-              })}
-            </div>
-          ))}
-        </div>
-      </TooltipProvider>
-    );
-  }
-
-  // Desktop view - grouped tabs with separators
-  return (
-    <div className="flex items-center gap-1 w-full" style={{ flexWrap: 'nowrap' }}>
-      {TAB_GROUPS.map((group, groupIndex) => (
-        <div key={group.name} className="flex items-center flex-shrink-0">
-          {groupIndex > 0 && (
-            <Separator orientation="vertical" className="h-6 mx-2 bg-[var(--border-subtle)]" />
-          )}
-          {group.tabs.map((tab) => {
-            const isActive = activeTab === tab.value;
-            return (
-              <TabsTrigger
-                key={tab.value}
-                value={tab.value}
-                className={`
-                  text-xs px-3 py-1.5 relative transition-all whitespace-nowrap text-[var(--font-display)] tracking-wider
-                  ${isActive 
-                    ? 'text-[var(--interactive-primary)]'
-                    : 'text-[var(--text-secondary)] hover:text-[var(--text-primary)]'
-                  }
-                `}
-                style={isActive ? {
-                  borderBottom: '2px solid var(--border-accent)',
-                } : {}}
-              >
-                {tab.label}
-              </TabsTrigger>
-            );
-          })}
-        </div>
-      ))}
-    </div>
-  );
-}
-
-TabBar.displayName = "TabBar";

src/components/game/shared/StudyProgress.tsx

@@ -1,62 +0,0 @@
-'use client';
-
-import { Button } from '@/components/ui/button';
-import { Progress } from '@/components/ui/progress';
-import { BookOpen, X } from 'lucide-react';
-import { useGameContext } from '../GameContext';
-import { formatStudyTime } from '../types';
-import { SKILLS_DEF, SPELLS_DEF } from '@/lib/game/constants';
-
-interface StudyProgressProps {
-  target: NonNullable<ReturnType<typeof useGameContext>['store']['currentStudyTarget']>;
-  showCancel?: boolean;
-  speedLabel?: string;
-}
-
-export function StudyProgress({ target, showCancel = true, speedLabel }: StudyProgressProps) {
-  const { store, studySpeedMult } = useGameContext();
-
-  const progressPct = Math.min(100, (target.progress / target.required) * 100);
-  const isSkill = target.type === 'skill';
-  const def = isSkill ? SKILLS_DEF[target.id] : SPELLS_DEF[target.id];
-  const currentLevel = isSkill ? store.skills[target.id] || 0 : 0;
-
-  const handleCancel = () => {
-    // Calculate retention bonus from knowledge retention skill
-    const retentionBonus = 0.2 * (store.skills.knowledgeRetention || 0);
-    store.cancelStudy(retentionBonus);
-  };
-
-  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}
-            {isSkill && ` Lv.${currentLevel + 1}`}
-          </span>
-        </div>
-        {showCancel && (
-          <Button
-            variant="ghost"
-            size="sm"
-            className="h-6 w-6 p-0 text-gray-400 hover:text-white"
-            onClick={handleCancel}
-          >
-            <X className="w-4 h-4" />
-          </Button>
-        )}
-      </div>
-      <Progress value={progressPct} className="h-2 bg-gray-800" />
-      <div className="flex justify-between text-xs text-gray-400 mt-1">
-        <span>
-          {formatStudyTime(target.progress)} / {formatStudyTime(target.required)}
-        </span>
-        <span>{speedLabel ?? `${studySpeedMult.toFixed(1)}x speed`}</span>
-      </div>
-    </div>
-  );
-}
-
-StudyProgress.displayName = "StudyProgress";

src/components/game/shared/UpgradeDialog.tsx

@@ -1,128 +0,0 @@
-'use client';
-
-import { useState } from 'react';
-import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription } from '@/components/ui/dialog';
-import { Button } from '@/components/ui/button';
-import { Badge } from '@/components/ui/badge';
-import { useGameContext } from '../GameContext';
-import { SKILLS_DEF } from '@/lib/game/constants';
-
-interface UpgradeDialogProps {
-  skillId: string | null;
-  milestone: 5 | 10;
-  onClose: () => void;
-}
-
-export function UpgradeDialog({ skillId, milestone, onClose }: UpgradeDialogProps) {
-  const { store } = useGameContext();
-
-  const skillDef = skillId ? SKILLS_DEF[skillId] : null;
-  const { available, selected: alreadySelected } = skillId
-    ? store.getSkillUpgradeChoices(skillId, milestone)
-    : { available: [], selected: [] };
-
-  // Use local state for selections within this dialog session
-  const [pendingSelections, setPendingSelections] = useState<string[]>(() => [...alreadySelected]);
-
-  const toggleUpgrade = (upgradeId: string) => {
-    setPendingSelections((prev) => {
-      if (prev.includes(upgradeId)) {
-        return prev.filter((id) => id !== upgradeId);
-      } else if (prev.length < 2) {
-        return [...prev, upgradeId];
-      }
-      return prev;
-    });
-  };
-
-  const handleDone = () => {
-    if (pendingSelections.length === 2 && skillId) {
-      store.commitSkillUpgrades(skillId, pendingSelections);
-    }
-    onClose();
-  };
-
-  const handleOpenChange = (open: boolean) => {
-    if (!open) {
-      setPendingSelections([...alreadySelected]);
-      onClose();
-    }
-  };
-
-  // Don't render if no skill selected
-  if (!skillId) return null;
-
-  return (
-    <Dialog open={!!skillId} onOpenChange={handleOpenChange}>
-      <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 ({pendingSelections.length}/2 chosen)
-          </DialogDescription>
-        </DialogHeader>
-
-        <div className="space-y-2 mt-4">
-          {available.map((upgrade) => {
-            const isSelected = pendingSelections.includes(upgrade.id);
-            const canToggle = pendingSelections.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.desc || 'Special effect'}</div>
-                )}
-              </div>
-            );
-          })}
-        </div>
-
-        <div className="flex justify-end gap-2 mt-4">
-          <Button
-            variant="outline"
-            onClick={() => {
-              setPendingSelections([...alreadySelected]);
-              onClose();
-            }}
-          >
-            Cancel
-          </Button>
-          <Button variant="default" onClick={handleDone} disabled={pendingSelections.length !== 2}>
-            {pendingSelections.length < 2 ? `Select ${2 - pendingSelections.length} more` : 'Confirm'}
-          </Button>
-        </div>
-      </DialogContent>
-    </Dialog>
-  );
-}
-
-UpgradeDialog.displayName = "UpgradeDialog";

src/components/game/stats/CombatStatsSection.tsx

@@ -1,67 +0,0 @@
-'use client';
-
-import { fmtDec } from '@/lib/game/stores';
-import { GUARDIANS } from '@/lib/game/constants';
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { Swords } from 'lucide-react';
-
-// Modular stores
-import { useSkillStore, usePrestigeStore } from '@/lib/game/stores';
-
-export function CombatStatsSection() {
-  // Get state from modular stores
-  const skills = useSkillStore((s) => s.skills);
-  const signedPacts = usePrestigeStore((s) => s.signedPacts);
-
-  return (
-    <Card className="bg-gray-900/80 border-gray-700">
-      <CardHeader className="pb-2">
-        <CardTitle className="text-red-400 text-sm 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">Combat Training Bonus:</span>
-              <span className="text-red-300">+{(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 + (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 + (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 + (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">{(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">{(skills.spellEcho || 0) * 10}%</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span className="text-amber-300">×{fmtDec(signedPacts.reduce((m, f) => m * (GUARDIANS[f]?.pact || 1), 1), 2)}</span>
-            </div>
-          </div>
-        </div>
-      </CardContent>
-    </Card>
-  );
-}
-
-CombatStatsSection.displayName = "CombatStatsSection";

src/components/game/stats/ManaStatsSection.tsx

@@ -1,268 +0,0 @@
-'use client';
-
-import { getTierMultiplier } from '@/lib/game/skill-evolution';
-import { hasSpecial, SPECIAL_EFFECTS } from '@/lib/game/effects';
-import { fmt, fmtDec } from '@/lib/game/stores';
-import type { UnifiedEffects } from '@/lib/game/effects';
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { Separator } from '@/components/ui/separator';
-import { Droplet } from 'lucide-react';
-
-// Modular stores
-import { useSkillStore, usePrestigeStore, useManaStore } from '@/lib/game/stores';
-
-export interface ManaStatsSectionProps {
-  upgradeEffects: UnifiedEffects;
-  maxMana: number;
-  baseRegen: number;
-  clickMana: number;
-  meditationMultiplier: number;
-  effectiveRegen: number;
-  incursionStrength: number;
-  manaCascadeBonus: number;
-  manaWaterfallBonus: number;
-  hasManaWaterfall: boolean;
-  hasFlowSurge: boolean;
-  hasManaOverflow: boolean;
-  hasEternalFlow: boolean;
-}
-
-export function ManaStatsSection({
-  upgradeEffects,
-  maxMana,
-  baseRegen,
-  clickMana,
-  meditationMultiplier,
-  effectiveRegen,
-  incursionStrength,
-  manaCascadeBonus,
-  manaWaterfallBonus,
-  hasManaWaterfall,
-  hasFlowSurge,
-  hasManaOverflow,
-  hasEternalFlow,
-}: ManaStatsSectionProps) {
-  // Get state from modular stores
-  const skills = useSkillStore((s) => s.skills);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
-  const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
-  const rawMana = useManaStore((s) => s.rawMana);
-
-  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 = skillTiers?.manaWell || 1;
-                  const tieredSkillId = mw > 1 ? `manaWell_t${mw}` : 'manaWell';
-                  const level = skills[tieredSkillId] || skills.manaWell || 0;
-                  const tierMult = getTierMultiplier(tieredSkillId);
-                  return `+${fmt(level * 100 * tierMult)} (${level} lvl × 100 × ${tierMult}x tier)`;
-                })()}
-              </span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span className="text-gray-400">Prestige Mana Well:</span>
-              <span className="text-blue-300">+{fmt((prestigeUpgrades.manaWell || 0) * 500)}</span>
-            </div>
-            {upgradeEffects.maxManaBonus > 0 && (
-              <div className="flex justify-between text-sm">
-                <span className="text-amber-400">Upgrade Mana Bonus:</span>
-                <span className="text-amber-300">+{fmt(upgradeEffects.maxManaBonus)}</span>
-              </div>
-            )}
-            {upgradeEffects.maxManaMultiplier > 1 && (
-              <div className="flex justify-between text-sm">
-                <span className="text-amber-400">Upgrade Mana Multiplier:</span>
-                <span className="text-amber-300">×{fmtDec(upgradeEffects.maxManaMultiplier, 2)}</span>
-              </div>
-            )}
-            <div className="flex justify-between text-sm font-semibold border-t border-gray-700 pt-2">
-              <span className="text-gray-300">Total Max Mana:</span>
-              <span className="text-blue-400">{fmt(maxMana)}</span>
-            </div>
-          </div>
-          <div className="space-y-2">
-            <div className="flex justify-between text-sm">
-              <span className="text-gray-400">Base Regen:</span>
-              <span className="text-gray-200">2/hr</span>
-            </div>
-            <div className="flex justify-between text-sm">
-              <span className="text-gray-400">Mana Flow Bonus:</span>
-              <span className="text-blue-300">
-                {(() => {
-                  const mf = skillTiers?.manaFlow || 1;
-                  const tieredSkillId = mf > 1 ? `manaFlow_t${mf}` : 'manaFlow';
-                  const level = skills[tieredSkillId] || 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">+{(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((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 + (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" />
-        {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">+{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">+{(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 + (skills.manaOverflow || 0) * 0.25, 2)}</span>
-            </div>
-          </div>
-          <div className="space-y-2">
-            <div className="flex justify-between text-sm">
-              <span className={`font-semibold ${meditationMultiplier > 1.5 ? 'text-purple-400' : 'text-gray-300'}`}>
-                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-300">Effective Regen:</span>
-              <span className="text-green-400 font-semibold">{fmtDec(effectiveRegen, 2)}/hr</span>
-            </div>
-            {incursionStrength > 0 && !hasSpecial(upgradeEffects, SPECIAL_EFFECTS.STEADY_STREAM) && (
-              <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>
-            )}
-            {hasSpecial(upgradeEffects, SPECIAL_EFFECTS.STEADY_STREAM) && 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>
-            )}
-            {hasSpecial(upgradeEffects, SPECIAL_EFFECTS.MANA_TORRENT) && 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>
-            )}
-            {hasSpecial(upgradeEffects, SPECIAL_EFFECTS.DESPERATE_WELLS) && 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>
-  );
-}
-
-ManaStatsSection.displayName = "ManaStatsSection";

src/components/game/stats/ManaTypeBreakdown.tsx

@@ -1,239 +0,0 @@
-'use client';
-
-import { ELEMENTS } from '@/lib/game/constants';
-import { fmt, fmtDec } from '@/lib/game/stores';
-import { ATTUNEMENTS_DEF, getAttunementConversionRate } from '@/lib/game/data/attunements';
-import { computeMaxMana, computeElementMax } from '@/lib/game/stores';
-import { computeEffectiveRegenForDisplay } from '@/lib/game/store-modules/computed-stats';
-import { getUnifiedEffects } from '@/lib/game/effects';
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { Droplet } from 'lucide-react';
-import { Separator } from '@/components/ui/separator';
-
-// Modular stores
-import { useManaStore, useSkillStore, usePrestigeStore } from '@/lib/game/stores';
-
-export function ManaTypeBreakdown() {
-  // Get state from modular stores
-  const skills = useSkillStore((s) => s.skills);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
-  const skillUpgrades = useSkillStore((s) => s.skillUpgrades);
-  
-  const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
-  const elements = useManaStore((s) => s.elements);
-  const rawMana = useManaStore((s) => s.rawMana);
-  // attunements is not in modular stores - using empty object as fallback
-  const attunements: Record<string, { active: boolean; level: number; experience: number }> = {};
-  
-  // Compute unified effects for regen calculations
-  const effects = getUnifiedEffects({ 
-    skillUpgrades, 
-    skillTiers, 
-    equippedInstances: {}, 
-    equipmentInstances: {} 
-  });
-  
-  // Get effective regen info for raw mana
-  const regenInfo = computeEffectiveRegenForDisplay({ 
-    skills, 
-    prestigeUpgrades, 
-    skillUpgrades, 
-    skillTiers, 
-    elements, 
-    rawMana, 
-    attunements 
-  } as any, effects);
-  
-  // Compute max mana
-  const maxMana = computeMaxMana({ 
-    skills, 
-    prestigeUpgrades, 
-    skillUpgrades, 
-    skillTiers 
-  }, effects);
-  
-  // Get unlocked elements sorted by category then name
-  const unlockedElements = Object.entries(elements)
-    .filter(([, state]) => state.unlocked)
-    .map(([id, state]) => {
-      const def = ELEMENTS[id];
-      if (!def) return null;
-      const elemMax = computeElementMax({ 
-        skills, 
-        prestigeUpgrades, 
-        skillUpgrades, 
-        skillTiers 
-      } as any, effects, id);
-      return { 
-        id, 
-        name: def.name, 
-        sym: def.sym, 
-        color: def.color, 
-        current: state.current, 
-        max: elemMax, 
-        cat: def.cat, 
-        recipe: def.recipe,
-      };
-    })
-    .filter(Boolean)
-    .sort((a, b) => {
-      if (!a || !b) return 0;
-      if (a.cat !== b.cat) return a.cat.localeCompare(b.cat);
-      return a.name.localeCompare(b.name);
-    });
-
-  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">
-          <Droplet className="w-4 h-4" />
-          Mana Type Breakdown
-        </CardTitle>
-      </CardHeader>
-      <CardContent>
-        <div className="space-y-4">
-          {/* Raw Mana Section */}
-          <div className="p-3 bg-gray-800/50 rounded border border-gray-700">
-            <div className="flex items-center justify-between mb-2">
-              <div className="flex items-center gap-2">
-                <span className="text-lg">🌀</span>
-                <span className="font-semibold text-purple-300">Raw Mana</span>
-                <span className="text-xs text-gray-500">(base)</span>
-              </div>
-              <div className="text-sm">
-                <span className="text-gray-300">{fmt(rawMana)}</span>
-                <span className="text-gray-500"> / </span>
-                <span className="text-gray-400">{fmt(maxMana)}</span>
-              </div>
-            </div>
-            
-            {/* Progress bar */}
-            <div className="w-full bg-gray-700 rounded-full h-2 mb-3">
-              <div 
-                className="h-2 rounded-full transition-all duration-300 bg-purple-500" 
-                style={{ width: `${Math.min(100, (rawMana / maxMana) * 100)}%` }}
-              />
-            </div>
-            
-            {/* Regen info */}
-            <div className="text-xs space-y-1">
-              <div className="flex justify-between">
-                <span className="text-gray-400">Base Regen:</span>
-                <span className="text-green-400">{fmtDec(regenInfo.rawRegen, 2)}/hr</span>
-              </div>
-              {regenInfo.conversionDrain > 0 && (
-                <div className="flex justify-between">
-                  <span className="text-gray-400">Conversion Drain:</span>
-                  <span className="text-red-400">-{fmtDec(regenInfo.conversionDrain, 2)}/hr</span>
-                </div>
-              )}
-              <Separator className="bg-gray-700 my-1" />
-              <div className="flex justify-between font-semibold">
-                <span className="text-gray-300">Effective Regen:</span>
-                <span className="text-green-400">{fmtDec(regenInfo.effectiveRegen, 2)}/hr</span>
-              </div>
-              
-              {/* Show conversion drains by attunement */}
-              {attunements && Object.keys(attunements).length > 0 && (
-                <>
-                  <Separator className="bg-gray-700 my-1" />
-                  <div className="text-gray-400 mb-1">Conversion Drains:</div>
-                  {Object.entries(attunements).map(([attId, attState]) => {
-                    const attDef = ATTUNEMENTS_DEF[attId];
-                    if (!attDef || attState.level === 0) return null;
-                    const rate = getAttunementConversionRate(attId, attState.level);
-                    if (rate <= 0) return null;
-                    return (
-                      <div key={attId} className="flex justify-between pl-2">
-                        <span className="text-gray-500">{attDef.name}:</span>
-                        <span className="text-red-400">-{fmtDec(rate, 2)}/hr</span>
-                      </div>
-                    );
-                  })}
-                </>
-              )}
-            </div>
-          </div>
-
-          <Separator className="bg-gray-700" />
-
-          {/* Elemental Mana Sections */}
-          {unlockedElements.map((elem) => {
-            if (!elem) return null;
-            
-            // Find attunements that convert TO this element
-            const convertingAttunements = Object.entries(attunements || {})
-              .filter(([attId, attState]) => {
-                if (!attState.active) return false;
-                const attDef = ATTUNEMENTS_DEF[attId];
-                return attDef?.primaryManaType === elem.id && attDef.conversionRate > 0;
-              });
-            
-            // Calculate total conversion rate TO this element
-            const totalConversionRate = convertingAttunements.reduce((total, [attId, attState]) => {
-              return total + getAttunementConversionRate(attId, attState.level || 1);
-            }, 0);
-            
-            return (
-              <div key={elem.id} className="p-3 bg-gray-800/50 rounded border border-gray-700">
-                <div className="flex items-center justify-between mb-2">
-                  <div className="flex items-center gap-2">
-                    <span className="text-lg">{elem.sym}</span>
-                    <span className="font-semibold" style={{ color: elem.color }}>{elem.name}</span>
-                    <span className="text-xs text-gray-500">({elem.cat})</span>
-                  </div>
-                  <div className="text-sm">
-                    <span className="text-gray-300">{fmt(elem.current)}</span>
-                    <span className="text-gray-500"> / </span>
-                    <span className="text-gray-400">{fmt(elem.max)}</span>
-                  </div>
-                </div>
-                
-                {/* Progress bar */}
-                <div className="w-full bg-gray-700 rounded-full h-2 mb-3">
-                  <div 
-                    className="h-2 rounded-full transition-all duration-300" 
-                    style={{ 
-                      width: `${Math.min(100, (elem.current / elem.max) * 100)}%`,
-                      backgroundColor: elem.color 
-                    }}
-                  />
-                </div>
-                
-                {/* Conversion info */}
-                {totalConversionRate > 0 ? (
-                  <div className="text-xs space-y-1">
-                    <div className="flex justify-between">
-                      <span className="text-gray-400">Conversion Rate:</span>
-                      <span className="text-green-400">+{fmtDec(totalConversionRate, 2)}/hr</span>
-                    </div>
-                    {convertingAttunements.length > 0 && (
-                      <div className="text-gray-500 pl-2">
-                        Source: {convertingAttunements.map(([attId]) => {
-                          const attDef = ATTUNEMENTS_DEF[attId];
-                          const level = attunements[attId]?.level || 1;
-                          return `${attDef?.name} (Lv.${level})`;
-                        }).join(', ')}
-                      </div>
-                    )}
-                  </div>
-                ) : (
-                  <div className="text-xs text-gray-500">No active conversion to this element</div>
-                )}
-                
-                {/* Show recipe for composite/exotic elements */}
-                {elem.recipe && (
-                  <div className="text-xs text-gray-500 mt-2 pt-2 border-t border-gray-700">
-                    Recipe: {elem.recipe.map(r => `${ELEMENTS[r]?.sym} ${ELEMENTS[r]?.name || r}`).join(' + ')}
-                  </div>
-                )}
-              </div>
-            );
-          })}
-        </div>
-      </CardContent>
-    </Card>
-  );
-}
-
-ManaTypeBreakdown.displayName = "ManaTypeBreakdown";

src/components/game/stats/StudyStatsSection.tsx

@@ -1,62 +0,0 @@
-'use client';
-
-import { fmtDec } from '@/lib/game/stores';
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { BookOpen } from 'lucide-react';
-
-// Modular stores
-import { useSkillStore, usePrestigeStore } from '@/lib/game/stores';
-
-export interface StudyStatsSectionProps {
-  studySpeedMult: number;
-  studyCostMult: number;
-}
-
-export function StudyStatsSection({ studySpeedMult, studyCostMult }: StudyStatsSectionProps) {
-  // Get state from modular stores
-  const skills = useSkillStore((s) => s.skills);
-  const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
-
-  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">+{((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">-{((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 + (skills.knowledgeRetention || 0) * 0.2) * 100)}%</span>
-            </div>
-          </div>
-        </div>
-      </CardContent>
-    </Card>
-  );
-}
-
-StudyStatsSection.displayName = "StudyStatsSection";

src/components/game/stats/UpgradeEffectsSection.tsx

@@ -1,86 +0,0 @@
-'use client';
-
-import { SKILL_EVOLUTION_PATHS } from '@/lib/game/skill-evolution';
-import { SKILLS_DEF } from '@/lib/game/constants';
-import type { SkillUpgradeChoice } from '@/lib/game/types';
-import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
-import { Badge } from '@/components/ui/badge';
-import { Star } from 'lucide-react';
-
-// Modular stores
-import { useSkillStore } from '@/lib/game/stores';
-
-export function UpgradeEffectsSection() {
-  // Get state from modular stores
-  const skillUpgrades = useSkillStore((s) => s.skillUpgrades);
-
-  // Helper function to get all selected skill upgrades
-  function getAllSelectedUpgrades() {
-    const upgrades = [];
-    for (const [skillId, selectedIds] of Object.entries(skillUpgrades)) {
-      const baseSkillId = skillId.includes('_t') ? skillId.split('_t')[0] : skillId;
-      const path = SKILL_EVOLUTION_PATHS[baseSkillId];
-      if (!path) continue;
-      for (const tier of path.tiers) {
-        if (tier.skillId === skillId) {
-          for (const upgradeId of selectedIds) {
-            const upgrade = tier.upgrades.find(u => u.id === upgradeId);
-            if (upgrade) {
-              upgrades.push({ skillId, upgrade });
-            }
-          }
-        }
-      }
-    }
-    return upgrades;
-  }
-
-  const selectedUpgrades = getAllSelectedUpgrades();
-
-  return (
-    <Card className="bg-gray-900/80 border-gray-700">
-      <CardHeader className="pb-2">
-        <CardTitle className="text-amber-400 text-sm 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 && 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 && upgrade.effect.type === 'bonus' && (
-                  <div className="text-xs text-blue-400 mt-1">
-                    +{upgrade.effect.value} {upgrade.effect.stat}
-                  </div>
-                )}
-                {upgrade.effect && upgrade.effect.type === 'special' && (
-                  <div className="text-xs text-cyan-400 mt-1">
-                    ⚡ {upgrade.effect.specialDesc || 'Special effect active'}
-                  </div>
-                )}
-              </div>
-            ))}
-          </div>
-        )}
-      </CardContent>
-    </Card>
-  );
-}
-
-UpgradeEffectsSection.displayName = "UpgradeEffectsSection";

src/components/game/stats/index.tsx

@@ -1,11 +0,0 @@
-export { ManaStatsSection } from './ManaStatsSection';
-export type { ManaStatsSectionProps } from './ManaStatsSection';
-
-export { CombatStatsSection } from './CombatStatsSection';
-export type { CombatStatsSectionProps } from './CombatStatsSection';
-
-export { StudyStatsSection } from './StudyStatsSection';
-export type { StudyStatsSectionProps } from './StudyStatsSection';
-
-export { UpgradeEffectsSection } from './UpgradeEffectsSection';
-export type { UpgradeEffectsSectionProps } from './UpgradeEffectsSection';

src/lib/game/__tests__/computed-stats.test.ts

@@ -11,7 +11,7 @@ import {
   computeClickMana,
   getMeditationBonus,
   getIncursionStrength,
-} from '../computed-stats';
+} from '../utils';
 import { MAX_DAY, INCURSION_START_DAY, HOURS_PER_TICK } from '../constants';
 
 describe('fmt', () => {

src/lib/game/attunements/data.ts

@@ -1,345 +0,0 @@
-// ─── Attunement Definitions ─────────────────────────────────────────
-// Data file containing all attunement definitions
-
-import type { AttunementDef, AttunementType } from '../types';
-
-export const ATTUNEMENTS: Record<AttunementType, AttunementDef> = {
-  // ═══════════════════════════════════════════════════════════════════════════
-  // ENCHANTER - Right Hand
-  // The starting attunement. Grants access to enchanting and transference magic.
-  // ═══════════════════════════════════════════════════════════════════════════
-  enchanter: {
-    id: 'enchanter',
-    name: 'Enchanter',
-    slot: 'rightHand',
-    description: 'Channel mana through your right hand to imbue equipment with magical properties.',
-    capability: 'Unlock enchanting. Apply enchantments using transference mana.',
-    primaryManaType: 'transference',
-    rawManaRegen: 0.5,
-    autoConvertRate: 0.2,  // 0.2 transference per hour per raw regen
-    icon: 'Wand2',
-    color: '#8B5CF6',  // Purple
-    skills: {
-      // Core enchanting skills
-      enchanting: {
-        name: 'Enchanting',
-        desc: 'Apply magical effects to equipment',
-        cat: 'enchanter',
-        max: 10,
-        base: 100,
-        studyTime: 8,
-      },
-      efficientEnchant: {
-        name: 'Efficient Enchanting',
-        desc: 'Reduce enchantment mana costs',
-        cat: 'enchanter',
-        max: 5,
-        base: 200,
-        studyTime: 12,
-        req: { enchanting: 3 },
-      },
-
-      enchantSpeed: {
-        name: 'Swift Enchanting',
-        desc: 'Faster enchantment application',
-        cat: 'enchanter',
-        max: 5,
-        base: 175,
-        studyTime: 10,
-        req: { enchanting: 2 },
-      },
-      transferenceMastery: {
-        name: 'Transference Mastery',
-        desc: 'Increased transference mana pool and regen',
-        cat: 'enchanter',
-        max: 10,
-        base: 250,
-        studyTime: 15,
-      },
-    },
-  },
-  // ... rest of attunement definitions (same as original data.ts)
-  caster: {
-    id: 'caster',
-    name: 'Caster',
-    slot: 'leftHand',
-    description: 'Shape mana into devastating spell patterns through your left hand.',
-    capability: 'Form mana shaping. +25% spell damage bonus.',
-    primaryManaType: 'form',
-    rawManaRegen: 0.3,
-    autoConvertRate: 0.15,
-    icon: 'Hand',
-    color: '#3B82F6',  // Blue
-    skills: {
-      spellShaping: {
-        name: 'Spell Shaping',
-        desc: 'Increase spell damage and efficiency',
-        cat: 'caster',
-        max: 10,
-        base: 100,
-        studyTime: 8,
-      },
-      quickCast: {
-        name: 'Quick Cast',
-        desc: 'Faster spell casting speed',
-        cat: 'caster',
-        max: 10,
-        base: 120,
-        studyTime: 8,
-      },
-      spellEcho: {
-        name: 'Spell Echo',
-        desc: 'Chance to cast spells twice',
-        cat: 'caster',
-        max: 5,
-        base: 300,
-        studyTime: 15,
-        req: { spellShaping: 5 },
-      },
-      formMastery: {
-        name: 'Form Mastery',
-        desc: 'Increased form mana pool and regen',
-        cat: 'caster',
-        max: 10,
-        base: 250,
-        studyTime: 15,
-      },
-    },
-  },
-  seer: {
-    id: 'seer',
-    name: 'Seer',
-    slot: 'head',
-    description: 'See beyond the veil. Reveal hidden truths and enemy weaknesses.',
-    capability: 'Reveal floor weaknesses. +20% critical hit chance.',
-    primaryManaType: 'vision',
-    rawManaRegen: 0.2,
-    autoConvertRate: 0.1,
-    icon: 'Eye',
-    color: '#F59E0B',  // Amber
-    skills: {
-      insight: {
-        name: 'Insight',
-        desc: 'Increased critical hit chance',
-        cat: 'seer',
-        max: 10,
-        base: 100,
-        studyTime: 8,
-      },
-      revealWeakness: {
-        name: 'Reveal Weakness',
-        desc: 'Show enemy elemental weaknesses',
-        cat: 'seer',
-        max: 5,
-        base: 200,
-        studyTime: 12,
-      },
-      foresight: {
-        name: 'Foresight',
-        desc: 'Chance to anticipate and dodge attacks',
-        cat: 'seer',
-        max: 5,
-        base: 250,
-        studyTime: 15,
-        req: { insight: 5 },
-      },
-      visionMastery: {
-        name: 'Vision Mastery',
-        desc: 'Increased vision mana pool and regen',
-        cat: 'seer',
-        max: 10,
-        base: 250,
-        studyTime: 15,
-      },
-    },
-  },
-  warden: {
-    id: 'warden',
-    name: 'Warden',
-    slot: 'back',
-    description: 'Shield yourself with protective wards and barriers.',
-    capability: 'Generate protective shields. -10% damage taken.',
-    primaryManaType: 'barrier',
-    rawManaRegen: 0.25,
-    autoConvertRate: 0.12,
-    icon: 'Shield',
-    color: '#10B981',  // Green
-    skills: {
-      warding: {
-        name: 'Warding',
-        desc: 'Generate protective shields',
-        cat: 'warden',
-        max: 10,
-        base: 100,
-        studyTime: 8,
-      },
-      fortitude: {
-        name: 'Fortitude',
-        desc: 'Reduce damage taken',
-        cat: 'warden',
-        max: 10,
-        base: 150,
-        studyTime: 10,
-      },
-      reflection: {
-        name: 'Reflection',
-        desc: 'Chance to reflect damage to attacker',
-        cat: 'warden',
-        max: 5,
-        base: 300,
-        studyTime: 15,
-        req: { warding: 5 },
-      },
-      barrierMastery: {
-        name: 'Barrier Mastery',
-        desc: 'Increased barrier mana pool and regen',
-        cat: 'warden',
-        max: 10,
-        base: 250,
-        studyTime: 15,
-      },
-    },
-  },
-  invoker: {
-    id: 'invoker',
-    name: 'Invoker',
-    slot: 'chest',
-    description: 'Form pacts with spire guardians and channel their elemental power.',
-    capability: 'Pact with guardians. Gain mana types from pacted guardians.',
-    primaryManaType: null,  // Uses guardian types instead
-    rawManaRegen: 0.4,
-    autoConvertRate: 0,  // No auto-convert; mana comes from guardian pacts
-    icon: 'Heart',
-    color: '#EF4444',  // Red
-    skills: {
-      pactMaking: {
-        name: 'Pact Making',
-        desc: 'Form stronger pacts with guardians',
-        cat: 'invoker',
-        max: 10,
-        base: 100,
-        studyTime: 8,
-      },
-      guardianChannel: {
-        name: 'Guardian Channeling',
-        desc: 'Channel guardian powers more effectively',
-        cat: 'invoker',
-        max: 10,
-        base: 150,
-        studyTime: 10,
-      },
-      elementalBurst: {
-        name: 'Elemental Burst',
-        desc: 'Unleash stored guardian energy',
-        cat: 'invoker',
-        max: 5,
-        base: 300,
-        studyTime: 15,
-        req: { pactMaking: 5, guardianChannel: 3 },
-      },
-      soulResonance: {
-        name: 'Soul Resonance',
-        desc: 'Deep bond with pacted guardians',
-        cat: 'invoker',
-        max: 5,
-        base: 400,
-        studyTime: 20,
-        req: { pactMaking: 8 },
-      },
-    },
-  },
-  strider: {
-    id: 'strider',
-    name: 'Strider',
-    slot: 'leftLeg',
-    description: 'Move with supernatural speed and grace.',
-    capability: 'Enhanced mobility. +15% attack speed.',
-    primaryManaType: 'flow',
-    rawManaRegen: 0.3,
-    autoConvertRate: 0.15,
-    icon: 'Zap',
-    color: '#06B6D4',  // Cyan
-    skills: {
-      swiftness: {
-        name: 'Swiftness',
-        desc: 'Increased attack and movement speed',
-        cat: 'strider',
-        max: 10,
-        base: 100,
-        studyTime: 8,
-      },
-      evasive: {
-        name: 'Evasive',
-        desc: 'Chance to avoid damage',
-        cat: 'strider',
-        max: 5,
-        base: 200,
-        studyTime: 12,
-      },
-      momentum: {
-        name: 'Momentum',
-        desc: 'Build speed over consecutive attacks',
-        cat: 'strider',
-        max: 5,
-        base: 250,
-        studyTime: 15,
-        req: { swiftness: 5 },
-      },
-      flowMastery: {
-        name: 'Flow Mastery',
-        desc: 'Increased flow mana pool and regen',
-        cat: 'strider',
-        max: 10,
-        base: 250,
-        studyTime: 15,
-      },
-    },
-  },
-  anchor: {
-    id: 'anchor',
-    name: 'Anchor',
-    slot: 'rightLeg',
-    description: 'Stand firm against any force. Your foundation is unshakeable.',
-    capability: 'Increased stability. +100 max mana.',
-    primaryManaType: 'stability',
-    rawManaRegen: 0.35,
-    autoConvertRate: 0.18,
-    icon: 'Mountain',
-    color: '#78716C',  // Stone gray
-    skills: {
-      grounding: {
-        name: 'Grounding',
-        desc: 'Increased max mana and stability',
-        cat: 'anchor',
-        max: 10,
-        base: 100,
-        studyTime: 8,
-      },
-      endurance: {
-        name: 'Endurance',
-        desc: 'Reduced mana costs when below 50% mana',
-        cat: 'anchor',
-        max: 5,
-        base: 200,
-        studyTime: 12,
-      },
-      ironWill: {
-        name: 'Iron Will',
-        desc: 'Prevent mana drain effects',
-        cat: 'anchor',
-        max: 5,
-        base: 250,
-        studyTime: 15,
-        req: { grounding: 5 },
-      },
-      stabilityMastery: {
-        name: 'Stability Mastery',
-        desc: 'Increased stability mana pool and regen',
-        cat: 'anchor',
-        max: 10,
-        base: 250,
-        studyTime: 15,
-      },
-    },
-  },
-};

src/lib/game/attunements/index.ts

@@ -1,30 +0,0 @@
-// ─── 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

@@ -1,100 +0,0 @@
-// ─── 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

@@ -1,94 +0,0 @@
-// ─── 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/computed-stats.ts

@@ -1,12 +0,0 @@
-// ─── Computed Stats and Utility Functions ───────────────────────────────────────
-// This module now re-exports from focused utility modules for better organization
-// 
-// The functions have been split into:
-// - ./utils/formatting.ts - Number formatting (fmt, fmtDec)
-// - ./utils/floor-utils.ts - Floor functions (getFloorMaxHP, getFloorElement)
-// - ./utils/mana-utils.ts - Mana calculations (computeMaxMana, computeElementMax, etc.)
-// - ./utils/combat-utils.ts - Combat functions (calcDamage, calcInsight, getTotalDPS, etc.)
-//
-// All exports are maintained for backward compatibility.
-
-export * from './utils/index';

src/lib/game/effects.ts.fix

@@ -1,12 +0,0 @@
-
-/**
- * Helper to get unified effects from game state
- */
-export function getUnifiedEffects(state: Pick<GameState, 'skillUpgrades' | 'skillTiers' | 'equipmentInstances' | 'equippedInstances'>): UnifiedEffects {
-  return computeAllEffects(
-    state.skillUpgrades || {},
-    state.skillTiers || {},
-    state.equipmentInstances || {},
-    state.equippedInstances || {}
-  );
-}

src/lib/game/formatting.ts

@@ -1,46 +0,0 @@
-// ─── Shared Formatting Utilities ─────────────────────────────────────────────────
-// Utility functions for consistent formatting across components
-
-import { ELEMENTS } from '@/lib/game/constants';
-import type { SpellCost } from '@/lib/game/types';
-
-// Re-export number formatting functions from computed-stats.ts
-export { fmt, fmtDec } from './computed-stats';
-
-/**
- * Format a spell cost for display
- */
-export function formatSpellCost(cost: SpellCost): string {
-  if (cost.type === 'raw') {
-    return `${cost.amount} raw`;
-  }
-  const elemDef = ELEMENTS[cost.element || ''];
-  return `${cost.amount} ${elemDef?.sym || '?'}`;
-}
-
-/**
- * Get the display color for a spell cost
- */
-export function getSpellCostColor(cost: SpellCost): string {
-  if (cost.type === 'raw') {
-    return '#60A5FA'; // Blue for raw mana
-  }
-  return ELEMENTS[cost.element || '']?.color || '#9CA3AF';
-}
-
-/**
- * Format study time in hours to human-readable string
- */
-export function formatStudyTime(hours: number): string {
-  if (hours < 1) return `${Math.round(hours * 60)}m`;
-  return `${hours.toFixed(1)}h`;
-}
-
-/**
- * Format time (hour of day) to HH:MM format
- */
-export function formatHour(hour: number): string {
-  const h = Math.floor(hour);
-  const m = Math.floor((hour % 1) * 60);
-  return `${h.toString().padStart(2, '0')}:${m.toString().padStart(2, '0')}`;
-}

src/lib/game/navigation-slice.ts

@@ -1,75 +0,0 @@
-// ─── Navigation Slice ─────────────────────────────────────────────────────────
-// Actions for floor navigation: climbing direction and manual floor changes
-
-import type { GameState } from './types';
-import { getFloorMaxHP } from './computed-stats';
-
-// ─── Navigation Actions Interface ─────────────────────────────────────────────
-
-export interface NavigationActions {
-  // Floor Navigation
-  setClimbDirection: (direction: 'up' | 'down') => void;
-  changeFloor: (direction: 'up' | 'down') => void;
-  resetFloorHP: () => void;
-}
-
-// ─── Navigation Slice Factory ─────────────────────────────────────────────────
-
-export function createNavigationSlice(
-  set: (partial: Partial<GameState> | ((state: GameState) => Partial<GameState>)) => void,
-  get: () => GameState
-): NavigationActions {
-  return {
-    // Set the climbing direction (up or down)
-    setClimbDirection: (direction: 'up' | 'down') => {
-      set({ climbDirection: direction });
-    },
-
-    // Manually change floors by one
-    changeFloor: (direction: 'up' | 'down') => {
-      const state = get();
-      const currentFloor = state.currentFloor;
-
-      // Calculate next floor
-      const nextFloor = direction === 'up'
-        ? Math.min(currentFloor + 1, 100)
-        : Math.max(currentFloor - 1, 1);
-
-      // Can't stay on same floor
-      if (nextFloor === currentFloor) return;
-
-      // Mark current floor as cleared (it will respawn when we come back)
-      const clearedFloors = { ...state.clearedFloors };
-      clearedFloors[currentFloor] = true;
-
-      // Check if next floor was cleared (needs respawn)
-      const nextFloorCleared = clearedFloors[nextFloor];
-      if (nextFloorCleared) {
-        // Respawn the floor
-        delete clearedFloors[nextFloor];
-      }
-
-      set({
-        currentFloor: nextFloor,
-        floorMaxHP: getFloorMaxHP(nextFloor),
-        floorHP: getFloorMaxHP(nextFloor),
-        maxFloorReached: Math.max(state.maxFloorReached, nextFloor),
-        clearedFloors,
-        climbDirection: direction,
-        equipmentSpellStates: state.equipmentSpellStates.map(s => ({ ...s, castProgress: 0 })),
-        log: [`🚶 Moved to floor ${nextFloor}${nextFloorCleared ? ' (respawned)' : ''}.`, ...state.log.slice(0, 49)],
-      });
-    },
-
-    // Reset current floor HP to max (useful when floor HP gets stuck)
-    resetFloorHP: () => {
-      const state = get();
-      const maxHP = getFloorMaxHP(state.currentFloor);
-      set({
-        floorMaxHP: maxHP,
-        floorHP: maxHP,
-        log: [`🔄 Floor ${state.currentFloor} HP reset to full.`, ...state.log.slice(0, 49)],
-      });
-    },
-  };
-}

src/lib/game/store-modules/computed-stats.ts

@@ -5,31 +5,17 @@
 import type { GameState, SpellCost, StudyTarget } from '../types';
 import type { ComputedEffects } from '../upgrade-effects.types';
 import type { UnifiedEffects } from '../effects';
-import { SPELLS_DEF, GUARDIANS, ELEMENT_OPPOSITES, SKILLS_DEF, HOURS_PER_TICK, TICK_MS, INCURSION_START_DAY, MAX_DAY, ELEMENTS } from '../constants';
+import { SPELLS_DEF, GUARDIANS, ELEMENT_OPPOSITES, HOURS_PER_TICK, TICK_MS, INCURSION_START_DAY, MAX_DAY, ELEMENTS } from '../constants';
 import { getUnifiedEffects } from '../effects';
 import { getTotalAttunementRegen, getTotalAttunementConversionDrain } from '../data/attunements';
 import { hasSpecial, SPECIAL_EFFECTS } from '../special-effects';
 
-// Helper to get effective skill level accounting for tiers
-function getEffectiveSkillLevel(
-  skills: Record<string, number>,
-  baseSkillId: string,
-  skillTiers: Record<string, number> = {}
-): { level: number; tier: number; tierMultiplier: number } {
-  const currentTier = skillTiers[baseSkillId] || 1;
-  const tieredSkillId = currentTier > 1 ? `${baseSkillId}_t${currentTier}` : baseSkillId;
-  const level = skills[tieredSkillId] || skills[baseSkillId] || 0;
-  const tierMultiplier = Math.pow(10, currentTier - 1);
-  return { level, tier: currentTier, tierMultiplier };
-}
-
 export function computeMaxMana(
   state: GameState,
   effects?: ComputedEffects | UnifiedEffects
 ): number {
   const pu = state.prestigeUpgrades;
-  const skillMult = (effects as any)?.skillLevelMultiplier || 1;
-  const base = 100 + ((state.skills || {}).manaWell || 0) * 100 * skillMult + ((pu || {}).manaWell || 0) * 500;
+  const base = 100 + ((pu || {}).manaWell || 0) * 500;
 
   // Check if we need to compute effects from equipment
   if (!effects && state.equipmentInstances && state.equippedInstances) {
@@ -58,7 +44,7 @@ export function computeElementMax(
   element?: string
 ): number {
   const pu = state.prestigeUpgrades;
-  const base = 10 + (state.skills.elemAttune || 0) * 50 + (pu.elementalAttune || 0) * 25;
+  const base = 10 + (pu.elementalAttune || 0) * 25;
 
   let adjustedBase = base;
   if (element && state.unlockedManaTypeUpgrades) {
@@ -86,8 +72,7 @@ export function computeRegen(
 ): number {
   const pu = state.prestigeUpgrades;
   const temporalBonus = 1 + (pu.temporalEcho || 0) * 0.1;
-  const skillMult = (effects as any)?.skillLevelMultiplier || 1;
-  const base = 2 + (state.skills.manaFlow || 0) * 1 * skillMult + (state.skills.manaSpring || 0) * 2 * skillMult + (pu.manaFlow || 0) * 0.5;
+  const base = 2 + (pu.manaFlow || 0) * 0.5;
 
   let regen = base * temporalBonus;
   const attunementRegen = getTotalAttunementRegen(state.attunements || {});
@@ -127,8 +112,7 @@ export function computeClickMana(
   state: GameState,
   effects?: ComputedEffects | UnifiedEffects
 ): number {
-  const skillMult = (effects as any)?.skillLevelMultiplier || 1;
-  const base = 1 + (state.skills.manaTap || 0) * 1 * skillMult + (state.skills.manaSurge || 0) * 3 * skillMult;
+  const base = 1;
 
   if (!effects && state.equipmentInstances && state.equippedInstances) {
     effects = getUnifiedEffects(state as any);
@@ -156,12 +140,10 @@ export function calcDamage(
 ): number {
   const sp = SPELLS_DEF[spellId];
   if (!sp) return 5;
-  const skills = state.skills;
-  const skillMult = (effects as any)?.skillLevelMultiplier || 1;
-  const baseDmg = sp.dmg + (skills.combatTrain || 0) * 5 * skillMult;
-  const pct = 1 + (skills.arcaneFury || 0) * 0.1 * skillMult;
-  const elemMasteryBonus = 1 + (skills.elementalMastery || 0) * 0.15 * skillMult;
-  const critChance = (skills.precision || 0) * 0.05;
+  const baseDmg = sp.dmg;
+  const pct = 1;
+  const elemMasteryBonus = 1;
+  const critChance = 0;
   const pactMult = state.signedPacts.reduce((m, f) => m * ((GUARDIANS as any)[f]?.pact || 1), 1);
 
   let damage = baseDmg * pct * pactMult * elemMasteryBonus;
@@ -176,20 +158,13 @@ export function calcDamage(
 
 export function calcInsight(state: Pick<GameState, 'maxFloorReached' | 'totalManaGathered' | 'signedPacts' | 'prestigeUpgrades' | 'skills'>): number {
   const pu = state.prestigeUpgrades;
-  const skillBonus = 1 + (state.skills.insightHarvest || 0) * 0.1;
-  const mult = (1 + (pu.insightAmp || 0) * 0.25) * skillBonus;
+  const mult = (1 + (pu.insightAmp || 0) * 0.25);
   return Math.floor((state.maxFloorReached * 15 + state.totalManaGathered / 500 + state.signedPacts.length * 150) * mult);
 }
 
-export function getMeditationBonus(meditateTicks: number, skills: Record<string, number>, meditationEfficiency: number = 1): number {
-  const hasMeditation = skills.meditation === 1;
-  const hasDeepTrance = skills.deepTrance === 1;
-  const hasVoidMeditation = skills.voidMeditation === 1;
+export function getMeditationBonus(meditateTicks: number, meditationEfficiency: number = 1): number {
   const hours = meditateTicks * HOURS_PER_TICK;
   let bonus = 1 + Math.min(hours / 4, 0.5);
-  if (hasMeditation && hours >= 4) bonus = 2.5;
-  if (hasDeepTrance && hours >= 6) bonus = 3.0;
-  if (hasVoidMeditation && hours >= 8) bonus = 5.0;
   bonus *= meditationEfficiency;
   return bonus;
 }

src/lib/game/store/index.ts

@@ -1,9 +0,0 @@
-// ─── Store Module Exports ─────────────────────────────────────────────────────
-// Re-exports from main store and adds new computed utilities
-// This allows gradual migration while keeping existing functionality
-
-// Re-export everything from the main store
-export * from '../store';
-
-// Export new computed utilities
-export * from './computed';

src/lib/game/stores/combat-actions.ts

@@ -10,7 +10,6 @@ import { usePrestigeStore } from './prestigeStore';
 export function processCombatTick(
   get: () => CombatState,
   set: (state: Partial<CombatState>) => void,
-  skills: Record<string, number>,
   rawMana: number,
   elements: Record<string, { current: number; max: number; unlocked: boolean }>,
   maxMana: number,
@@ -36,9 +35,8 @@ export function processCombatTick(
     return { rawMana, elements, logMessages, totalManaGathered };
   }
 
-  // Calculate cast speed
-  const baseAttackSpeed = 1 + (skills.quickCast || 0) * 0.05;
-  const totalAttackSpeed = baseAttackSpeed * attackSpeedMult;
+  // Calculate cast speed (no skill bonus)
+  const totalAttackSpeed = attackSpeedMult;
   const spellCastSpeed = spellDef.castSpeed || 1;
   const progressPerTick = HOURS_PER_TICK * spellCastSpeed * totalAttackSpeed;
 
@@ -58,12 +56,12 @@ export function processCombatTick(
     // Calculate base damage
     const floorElement = getFloorElement(currentFloor);
     const damage = calcDamage(
-      { skills, signedPacts: usePrestigeStore.getState().signedPacts },
+      { skills: {}, signedPacts: usePrestigeStore.getState().signedPacts },
       spellId,
       floorElement,
     );
 
-    // Let gameStore apply damage modifiers (executioner, berserker, spell echo)
+    // Let gameStore apply damage modifiers (executioner, berserker)
     const result = onDamageDealt(damage);
     rawMana = result.rawMana;
     elements = result.elements;
@@ -114,7 +112,7 @@ export function processCombatTick(
       // Calculate damage
       const eFloorElement = getFloorElement(currentFloor);
       const eDamage = calcDamage(
-        { skills, signedPacts: usePrestigeStore.getState().signedPacts },
+        { skills: {}, signedPacts: usePrestigeStore.getState().signedPacts },
         eSpell.spellId,
         eFloorElement,
       );

src/lib/game/stores/combatStore.ts

@@ -101,7 +101,6 @@ export interface CombatState {
 
   // Combat tick
   processCombatTick: (
-    skills: Record<string, number>,
     rawMana: number,
     elements: Record<string, { current: number; max: number; unlocked: boolean }>,
     maxMana: number,
@@ -325,7 +324,6 @@ export const useCombatStore = create<CombatState>()(
       },
 
       processCombatTick: (
-        skills: Record<string, number>,
         rawMana: number,
         elements: Record<string, { current: number; max: number; unlocked: boolean }>,
         maxMana: number,
@@ -336,7 +334,6 @@ export const useCombatStore = create<CombatState>()(
         return processCombatTick(
           get,
           set,
-          skills,
           rawMana,
           elements,
           maxMana,
@@ -386,7 +383,7 @@ export const useCombatStore = create<CombatState>()(
         currentFloor: state.currentFloor,
         maxFloorReached: state.maxFloorReached,
         spells: state.spells,
-        activeSpell: state.activeSpell,
+        activeSpell: state.activeAction,
       }),
     }
   )

src/lib/game/stores/craftingStore.ts

@@ -1,28 +1,14 @@
 // ─── Crafting Store ─────────────────────────────────────────────────────
-// Handles equipment crafting, enchantment design, and crafting progress
-// This is a modular store that manages all crafting-related state
-
 import { create } from 'zustand';
 import { persist } from 'zustand/middleware';
 import type { DesignProgress, PreparationProgress, ApplicationProgress, EquipmentCraftingProgress, EnchantmentDesign, EquipmentInstance, DesignEffect } from '../types';
-
-// Import crafting modules for action logic
 import * as CraftingUtils from '../crafting-utils';
 import * as CraftingDesign from '../crafting-design';
-import { computeEffects } from '../upgrade-effects';
-import { hasSpecial, SPECIAL_EFFECTS } from '../special-effects';
-
-// Import other stores to access required state
-import { useSkillStore } from './skillStore';
-import { useGameStore } from './gameStore';
 import { useManaStore } from './manaStore';
 import { useCombatStore } from './combatStore';
-import { createStartingEquipment } from '../store/crafting-modules/starting-equipment';
+import { createStartingEquipment } from '../crafting-slice';
 import { useUIStore } from './uiStore';
-
-// Import action modules
 import * as ApplicationActions from '../crafting-actions/application-actions';
-import * as CraftingApply from '../crafting-apply';
 import * as PreparationActions from '../crafting-actions/preparation-actions';
 import * as CraftingEquipment from '../crafting-equipment';
 
@@ -142,25 +128,18 @@ export const useCraftingStore = create<CraftingStore>()(
 
         // Enchantment design actions
         startDesigningEnchantment: (name, equipmentTypeId, effects) => {
-          // Get state from other stores
-          const skillState = useSkillStore.getState();
           const state = get(); // crafting state
 
-          const enchantingLevel = skillState.skills?.enchanting || 0;
-          const validation = CraftingDesign.validateDesignEffects(effects, equipmentTypeId, enchantingLevel);
+          const validation = CraftingDesign.validateDesignEffects(effects, equipmentTypeId, 0);
           if (!validation.valid) return false;
 
           const equipType = CraftingUtils.getEquipmentType(equipmentTypeId);
           if (!equipType) return false;
 
-          const efficiencyBonus = (skillState.skillUpgrades?.['efficientEnchant'] || []).length * 0.05 || 0;
-          const totalCapacityCost = CraftingDesign.calculateDesignCapacityCost(effects, efficiencyBonus);
+          const totalCapacityCost = CraftingDesign.calculateDesignCapacityCost(effects, 0);
 
           if (totalCapacityCost > equipType.baseCapacity) return false;
 
-          const computedEffects = computeEffects(skillState.skillUpgrades || {}, skillState.skillTiers || {});
-          const hasEnchantMastery = hasSpecial(computedEffects, SPECIAL_EFFECTS.ENCHANT_MASTERY);
-
           let updates: Partial<CraftingState> = {};
 
           if (!state.designProgress) {
@@ -176,17 +155,6 @@ export const useCraftingStore = create<CraftingStore>()(
             };
             // Update currentAction in combatStore
             useCombatStore.setState({ currentAction: 'design' });
-          } else if (hasEnchantMastery && !state.designProgress2) {
-            updates = {
-              designProgress2: {
-                designId: CraftingUtils.generateDesignId(),
-                progress: 0,
-                required: CraftingDesign.calculateDesignTime(effects),
-                name,
-                equipmentType: equipmentTypeId,
-                effects,
-              },
-            };
           } else {
             return false;
           }

src/lib/game/stores/gameActions.ts

@@ -1,9 +1,7 @@
 import { computeMaxMana } from '../utils';
-import { computeEffects } from '../upgrade-effects';
 import { useUIStore } from './uiStore';
 import { usePrestigeStore } from './prestigeStore';
 import { useManaStore } from './manaStore';
-import { useSkillStore } from './skillStore';
 import { useCombatStore } from './combatStore';
 
 export const createResetGame = (set: (state: any) => void, initialState: any) => () => {
@@ -12,7 +10,6 @@ export const createResetGame = (set: (state: any) => void, initialState: any) =>
     localStorage.removeItem('mana-loop-ui-storage');
     localStorage.removeItem('mana-loop-prestige-storage');
     localStorage.removeItem('mana-loop-mana-storage');
-    localStorage.removeItem('mana-loop-skill-storage');
     localStorage.removeItem('mana-loop-combat-storage');
     localStorage.removeItem('mana-loop-game-storage');
     localStorage.removeItem('mana-loop-crafting-storage');
@@ -24,7 +21,6 @@ export const createResetGame = (set: (state: any) => void, initialState: any) =>
   useUIStore.getState().resetUI();
   usePrestigeStore.getState().resetPrestige();
   useManaStore.getState().resetMana({}, {}, {}, {});
-  useSkillStore.getState().resetSkills();
   useCombatStore.getState().resetCombat(startFloor);
 
   set({
@@ -34,28 +30,20 @@ export const createResetGame = (set: (state: any) => void, initialState: any) =>
 };
 
 export const createGatherMana = () => () => {
-  const skillState = useSkillStore.getState();
   const manaState = useManaStore.getState();
   const prestigeState = usePrestigeStore.getState();
 
-  // Compute click mana
-  let cm = 1 + 
-    (skillState.skills.manaTap || 0) * 1 + 
-    (skillState.skills.manaSurge || 0) * 3;
+  // Base click mana (no skill bonuses)
+  const cm = 1;
 
-  // Mana overflow bonus
-  const overflowBonus = 1 + (skillState.skills.manaOverflow || 0) * 0.25;
-  cm = Math.floor(cm * overflowBonus);
-
-  const effects = computeEffects(skillState.skillUpgrades || {}, skillState.skillTiers || {});
   const max = computeMaxMana(
     {
-      skills: skillState.skills, 
+      skills: {},
       prestigeUpgrades: prestigeState.prestigeUpgrades,
-      skillUpgrades: skillState.skillUpgrades, 
-      skillTiers: skillState.skillTiers 
+      skillUpgrades: {},
+      skillTiers: {}
     },
-    effects
+    undefined
   );
 
   useManaStore.getState().gatherMana(cm, max);

src/lib/game/stores/gameHooks.ts

@@ -1,7 +1,6 @@
 import { useEffect } from 'react';
 import { useGameStore } from './gameStore';
 import { useManaStore } from './manaStore';
-import { useSkillStore } from './skillStore';
 import { usePrestigeStore } from './prestigeStore';
 import { useCombatStore } from './combatStore';
 import { useUIStore } from './uiStore';
@@ -28,17 +27,15 @@ export function useGameLoop() {
 // ─── Shared Selector Hooks for Common Derived State ────────────────────────────
 
 /**
- * Get unified effects from all relevant stores
+ * Get unified effects from equipment only (skills removed)
  */
 export function useUnifiedEffects() {
-  const skillUpgrades = useSkillStore((s) => s.skillUpgrades);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
   const equippedInstances = useCraftingStore((s) => s.equippedInstances);
   const equipmentInstances = useCraftingStore((s) => s.equipmentInstances);
 
   return getUnifiedEffects({
-    skillUpgrades,
-    skillTiers,
+    skillUpgrades: {},
+    skillTiers: {},
     equippedInstances,
     equipmentInstances,
   });
@@ -48,10 +45,7 @@ export function useUnifiedEffects() {
  * Get computed mana stats (maxMana, baseRegen, clickMana, meditationMultiplier, effectiveRegen)
  */
 export function useManaStats() {
-  const skills = useSkillStore((s) => s.skills);
   const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
-  const skillUpgrades = useSkillStore((s) => s.skillUpgrades);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
   const meditateTicks = useManaStore((s) => s.meditateTicks);
   const day = useGameStore((s) => s.day);
   const hour = useGameStore((s) => s.hour);
@@ -59,30 +53,27 @@ export function useManaStats() {
   const equipmentInstances = useCraftingStore((s) => s.equipmentInstances);
 
   const upgradeEffects = getUnifiedEffects({
-    skillUpgrades,
-    skillTiers,
+    skillUpgrades: {},
+    skillTiers: {},
     equippedInstances,
     equipmentInstances,
   });
 
   const maxMana = computeMaxMana(
-    { skills, prestigeUpgrades, skillUpgrades, skillTiers },
+    { skills: {}, prestigeUpgrades, skillUpgrades: {}, skillTiers: {} },
     upgradeEffects
   );
 
   const baseRegen = computeRegen(
-    { skills, prestigeUpgrades, skillUpgrades, skillTiers },
+    { skills: {}, prestigeUpgrades, skillUpgrades: {}, skillTiers: {} },
     upgradeEffects
   );
 
   const clickMana = computeClickMana({
-    skills,
-    prestigeUpgrades,
-    skillUpgrades,
-    skillTiers,
+    skills: {},
   });
 
-  const meditationMultiplier = getMeditationBonus(meditateTicks, skills, upgradeEffects.meditationEfficiency);
+  const meditationMultiplier = getMeditationBonus(meditateTicks, {}, upgradeEffects.meditationEfficiency);
   const incursionStrength = getIncursionStrength(day, hour);
   const effectiveRegenWithSpecials = baseRegen * (1 - incursionStrength);
 
@@ -115,22 +106,18 @@ export function useManaStats() {
  * Get combat-related derived state
  */
 export function useCombatStats() {
-  const skills = useSkillStore((s) => s.skills);
   const signedPacts = usePrestigeStore((s) => s.signedPacts);
   const equippedInstances = useCraftingStore((s) => s.equippedInstances);
   const equipmentInstances = useCraftingStore((s) => s.equipmentInstances);
-  const skillUpgrades = useSkillStore((s) => s.skillUpgrades);
-  const skillTiers = useSkillStore((s) => s.skillTiers);
 
   const upgradeEffects = getUnifiedEffects({
-    skillUpgrades,
-    skillTiers,
+    skillUpgrades: {},
+    skillTiers: {},
     equippedInstances,
     equipmentInstances,
   });
 
   return {
-    skills,
     signedPacts,
     equippedInstances,
     equipmentInstances,

src/lib/game/stores/gameLoopActions.ts

@@ -4,21 +4,19 @@ import { SPELLS_DEF } from '../constants';
 import { useUIStore } from './uiStore';
 import { usePrestigeStore } from './prestigeStore';
 import { useManaStore } from './manaStore';
-import { useSkillStore } from './skillStore';
 import { useCombatStore } from './combatStore';
 
 export const createStartNewLoop = (set: (state: any) => void) => () => {
   const prestigeState = usePrestigeStore.getState();
   const combatState = useCombatStore.getState();
   const manaState = useManaStore.getState();
-  const skillState = useSkillStore.getState();
 
   const insightGained = prestigeState.loopInsight || calcInsight({
     maxFloorReached: combatState.maxFloorReached,
     totalManaGathered: manaState.totalManaGathered,
     signedPacts: prestigeState.signedPacts,
     prestigeUpgrades: prestigeState.prestigeUpgrades,
-    skills: skillState.skills,
+    skills: {},
   });
 
   const total = prestigeState.insight + insightGained;
@@ -26,25 +24,6 @@ export const createStartNewLoop = (set: (state: any) => void) => () => {
   const pu = prestigeState.prestigeUpgrades;
   const startFloor = 1 + (pu.spireKey || 0) * 2;
 
-  // Apply saved memories - restore skill levels, tiers, and upgrades
-  const memories = prestigeState.memories || [];
-  const newSkills: Record<string, number> = {};
-  const newSkillTiers: Record<string, number> = {};
-  const newSkillUpgrades: Record<string, string[]> = {};
-
-  if (memories.length > 0) {
-    for (const memory of memories) {
-      const tieredSkillId = memory.tier > 1 ? `${memory.skillId}_t${memory.tier}` : memory.skillId;
-      newSkills[tieredSkillId] = memory.level;
-
-      if (memory.tier > 1) {
-        newSkillTiers[memory.skillId] = memory.tier;
-      }
-
-      newSkillUpgrades[tieredSkillId] = memory.upgrades || [];
-    }
-  }
-
   // Reset and update all stores for new loop
   useUIStore.setState({
     gameOver: false,
@@ -61,9 +40,7 @@ export const createStartNewLoop = (set: (state: any) => void) => () => {
   );
   usePrestigeStore.getState().incrementLoopCount();
 
-  useManaStore.getState().resetMana(pu, newSkills, newSkillUpgrades, newSkillTiers);
-
-  useSkillStore.getState().resetSkills(newSkills, newSkillUpgrades, newSkillTiers);
+  useManaStore.getState().resetMana(pu, {}, {}, {});
 
   // Reset combat with starting floor and any spells from prestige upgrades
   const startSpells = makeInitialSpells();

src/lib/game/stores/gameStore.ts

@@ -5,7 +5,6 @@
 import { create } from 'zustand';
 import { persist } from 'zustand/middleware';
 import { TICK_MS, HOURS_PER_TICK, MAX_DAY, SPELLS_DEF, GUARDIANS, getStudySpeedMultiplier } from '../constants';
-import { computeEffects } from '../upgrade-effects';
 import { hasSpecial, SPECIAL_EFFECTS } from '../special-effects';
 import {
   computeMaxMana,
@@ -22,7 +21,6 @@ import {
 import { useUIStore } from './uiStore';
 import { usePrestigeStore } from './prestigeStore';
 import { useManaStore } from './manaStore';
-import { useSkillStore } from './skillStore';
 import { useCombatStore, makeInitialSpells } from './combatStore';
 import { useAttunementStore } from './attunementStore';
 import { ATTUNEMENTS_DEF, getAttunementConversionRate } from '../data/attunements';
@@ -73,19 +71,15 @@ export const useGameStore = create<GameCoordinatorStore>()(
         // Get all store states
         const prestigeState = usePrestigeStore.getState();
         const manaState = useManaStore.getState();
-        const skillState = useSkillStore.getState();
         const combatState = useCombatStore.getState();
 
-        // Compute effects from upgrades
-        const effects = computeEffects(skillState.skillUpgrades || {}, skillState.skillTiers || {});
-
         const maxMana = computeMaxMana(
-          { skills: skillState.skills, prestigeUpgrades: prestigeState.prestigeUpgrades, skillUpgrades: skillState.skillUpgrades, skillTiers: skillState.skillTiers },
-          effects
+          { skills: {}, prestigeUpgrades: prestigeState.prestigeUpgrades, skillUpgrades: {}, skillTiers: {} },
+          undefined
         );
         const baseRegen = computeRegen(
-          { skills: skillState.skills, prestigeUpgrades: prestigeState.prestigeUpgrades, skillUpgrades: skillState.skillUpgrades, skillTiers: skillState.skillTiers },
-          effects
+          { skills: {}, prestigeUpgrades: prestigeState.prestigeUpgrades, skillUpgrades: {}, skillTiers: {}, attunement: {} },
+          undefined
         );
 
         // Time progression
@@ -103,7 +97,7 @@ export const useGameStore = create<GameCoordinatorStore>()(
             totalManaGathered: manaState.totalManaGathered,
             signedPacts: prestigeState.signedPacts,
             prestigeUpgrades: prestigeState.prestigeUpgrades,
-            skills: skillState.skills,
+            skills: {},
           });
 
           addLog(`⏰ The loop ends. Gained ${insightGained} Insight.`);
@@ -120,7 +114,7 @@ export const useGameStore = create<GameCoordinatorStore>()(
             totalManaGathered: manaState.totalManaGathered,
             signedPacts: prestigeState.signedPacts,
             prestigeUpgrades: prestigeState.prestigeUpgrades,
-            skills: skillState.skills,
+            skills: {},
           }) * 3;
 
           addLog(`🏆 VICTORY! The Awakened One falls! Gained ${insightGained} Insight!`);
@@ -138,7 +132,7 @@ export const useGameStore = create<GameCoordinatorStore>()(
 
         if (combatState.currentAction === 'meditate') {
           meditateTicks++;
-          meditationMultiplier = getMeditationBonus(meditateTicks, skillState.skills, effects.meditationEfficiency);
+          meditationMultiplier = getMeditationBonus(meditateTicks, {}, 1);
         } else {
           meditateTicks = 0;
         }
@@ -169,7 +163,7 @@ export const useGameStore = create<GameCoordinatorStore>()(
           if (!def || def.conversionRate <= 0 || !def.primaryManaType) return;
 
           const scaledRate = getAttunementConversionRate(id, state.level || 1);
-          const conversionThisTick = scaledRate * HOURS_PER_TICK; // per tick
+          const conversionThisTick = scaledRate * HOURS_PER_TICK;
 
           // Add to primary mana type (cost already deducted from regen)
           if (elements[def.primaryManaType]) {
@@ -181,32 +175,6 @@ export const useGameStore = create<GameCoordinatorStore>()(
         });
         let totalManaGathered = manaState.totalManaGathered;
 
-        // Study progress - handled by skillStore
-        if (combatState.currentAction === 'study' && skillState.currentStudyTarget) {
-          const studySpeedMult = getStudySpeedMultiplier(skillState.skills);
-          const progressGain = HOURS_PER_TICK * studySpeedMult;
-          
-          const result = useSkillStore.getState().updateStudyProgress(progressGain);
-          
-          if (result.completed && result.target) {
-            if (result.target.type === 'skill') {
-              const skillId = result.target.id;
-              const currentLevel = skillState.skills[skillId] || 0;
-              // Update skill level
-              useSkillStore.getState().incrementSkillLevel(skillId);
-              useSkillStore.getState().clearPaidStudySkill(skillId);
-              useCombatStore.getState().setAction('meditate');
-              addLog(`✅ ${skillId} Lv.${currentLevel + 1} mastered!`);
-            } else if (result.target.type === 'spell') {
-              const spellId = result.target.id;
-              useCombatStore.getState().learnSpell(spellId);
-              useSkillStore.getState().setCurrentStudyTarget(null);
-              useCombatStore.getState().setAction('meditate');
-              addLog(`📖 ${SPELLS_DEF[spellId]?.name || spellId} learned!`);
-            }
-          }
-        }
-
         // Convert action - delegate to manaStore
         if (combatState.currentAction === 'convert') {
           const convertResult = useManaStore.getState().processConvertAction(rawMana);
@@ -238,11 +206,11 @@ export const useGameStore = create<GameCoordinatorStore>()(
         // Combat - delegate to combatStore
         if (combatState.currentAction === 'climb') {
           const combatResult = useCombatStore.getState().processCombatTick(
-            skillState.skills,
+            {},
             rawMana,
             elements,
             maxMana,
-            effects.attackSpeedMultiplier,
+            1,
             (floor, wasGuardian) => {
               if (wasGuardian) {
                 addLog(`⚔️ ${GUARDIANS[floor]?.name || 'Guardian'} defeated! Visit the Grimoire to sign a pact.`);
@@ -252,25 +220,18 @@ export const useGameStore = create<GameCoordinatorStore>()(
             },
             (damage) => {
               // Apply upgrade damage multipliers and bonuses
-              let dmg = damage * effects.baseDamageMultiplier + effects.baseDamageBonus;
+              let dmg = damage;
 
               // Executioner: +100% damage to enemies below 25% HP
-              if (hasSpecial(effects, SPECIAL_EFFECTS.EXECUTIONER) && combatState.floorHP / combatState.floorMaxHP < 0.25) {
+              if (hasSpecial({}, SPECIAL_EFFECTS.EXECUTIONER) && combatState.floorHP / combatState.floorMaxHP < 0.25) {
                 dmg *= 2;
               }
 
               // Berserker: +50% damage when below 50% mana
-              if (hasSpecial(effects, SPECIAL_EFFECTS.BERSERKER) && rawMana < maxMana * 0.5) {
+              if (hasSpecial({}, SPECIAL_EFFECTS.BERSERKER) && rawMana < maxMana * 0.5) {
                 dmg *= 1.5;
               }
 
-              // Spell echo - chance to cast again
-              const echoChance = (skillState.skills.spellEcho || 0) * 0.1;
-              if (Math.random() < echoChance) {
-                dmg *= 2;
-                addLog(`✨ Spell Echo! Double damage!`);
-              }
-
               return { rawMana, elements, modifiedDamage: dmg };
             }
           );

src/lib/game/stores/index.ts

@@ -11,9 +11,6 @@ export type { PrestigeState } from './prestigeStore';
 export { useManaStore, makeInitialElements } from './manaStore';
 export type { ManaState } from './manaStore';
 
-export { useSkillStore } from './skillStore';
-export type { SkillState } from './skillStore';
-
 export { useCombatStore, makeInitialSpells } from './combatStore';
 export type { CombatState } from './combatStore';
 

src/lib/game/study-slice.ts

@@ -1,211 +0,0 @@
-// ─── Study Slice ─────────────────────────────────────────────────────────────
-// Actions for studying skills and spells
-
-import type { GameState } from './types';
-import { SKILLS_DEF, SPELLS_DEF, getStudyCostMultiplier } from './constants';
-import { computeEffects } from './upgrade-effects';
-import { hasSpecial, SPECIAL_EFFECTS } from './special-effects';
-
-// ─── Study Actions Interface ──────────────────────────────────────────────────
-
-export interface StudyActions {
-  startStudyingSkill: (skillId: string) => void;
-  startStudyingSpell: (spellId: string) => void;
-  cancelStudy: () => void;
-  startParallelStudySkill: (skillId: string) => void;
-  cancelParallelStudy: () => void;
-}
-
-// ─── Study Slice Factory ──────────────────────────────────────────────────────
-
-export function createStudySlice(
-  set: (partial: Partial<GameState> | ((state: GameState) => Partial<GameState>)) => void,
-  get: () => GameState
-): StudyActions {
-  return {
-    // Start studying a skill - mana is deducted per hour, not upfront
-    startStudyingSkill: (skillId: string) => {
-      const state = get();
-      const sk = SKILLS_DEF[skillId];
-      if (!sk) return;
-
-      const currentLevel = state.skills[skillId] || 0;
-      if (currentLevel >= sk.max) return;
-
-      // Check prerequisites
-      if (sk.req) {
-        for (const [r, rl] of Object.entries(sk.req)) {
-          if ((state.skills[r] || 0) < rl) return;
-        }
-      }
-
-      // Calculate total mana cost and cost per hour
-      const costMult = getStudyCostMultiplier(state.skills);
-      let totalCost = Math.floor(sk.base * (currentLevel + 1) * costMult);
-      
-      // CHAIN_STUDY: -5% cost per maxed skill
-      const effects = computeEffects(state.skillUpgrades || {}, state.skillTiers || {});
-      if (hasSpecial(effects, SPECIAL_EFFECTS.CHAIN_STUDY)) {
-        const maxedSkills = Object.entries(SKILLS_DEF).filter(([id, sk]) => 
-          (state.skills[id] || 0) >= sk.max
-        ).length;
-        const discount = Math.pow(0.95, maxedSkills); // -5% per maxed skill
-        totalCost = Math.floor(totalCost * discount);
-      }
-      
-      const manaCostPerHour = Math.ceil(totalCost / sk.studyTime);
-      
-      // Must have at least 1 hour worth of mana to start
-      if (state.rawMana < manaCostPerHour) return;
-
-      // KNOWLEDGE_TRANSFER: New skills start at 10% progress
-      let initialProgress = state.skillProgress[skillId] || 0;
-      if (hasSpecial(effects, SPECIAL_EFFECTS.KNOWLEDGE_TRANSFER) && initialProgress === 0) {
-        initialProgress = sk.studyTime * 0.10; // 10% of required time
-        log = [`📖 Knowledge Transfer: Starting with 10% progress!`, ...state.log.slice(0, 49)];
-      }
-      
-      // Start studying (no upfront cost - mana is deducted per hour during study)
-      set({
-        currentAction: 'study',
-        currentStudyTarget: {
-          type: 'skill',
-          id: skillId,
-          progress: initialProgress,
-          required: sk.studyTime,
-          manaCostPerHour: manaCostPerHour,
-          totalCost: totalCost,
-        },
-        log: [`📚 Started studying ${sk.name} (${manaCostPerHour} mana/hr)...`, ...state.log.slice(0, 49)],
-      });
-    },
-
-    // Start studying a spell
-    startStudyingSpell: (spellId: string) => {
-      const state = get();
-      const sp = SPELLS_DEF[spellId];
-      if (!sp || state.spells[spellId]?.learned) return;
-
-      // Calculate total mana cost and cost per hour
-      const costMult = getStudyCostMultiplier(state.skills);
-      let totalCost = Math.floor(sp.unlock * costMult);
-      
-      // CHAIN_STUDY: -5% cost per maxed skill
-      const effects = computeEffects(state.skillUpgrades || {}, state.skillTiers || {});
-      if (hasSpecial(effects, SPECIAL_EFFECTS.CHAIN_STUDY)) {
-        const maxedSkills = Object.entries(SKILLS_DEF).filter(([id, sk]) => 
-          (state.skills[id] || 0) >= sk.max
-        ).length;
-        const discount = Math.pow(0.95, maxedSkills); // -5% per maxed skill
-        totalCost = Math.floor(totalCost * discount);
-      }
-      
-      const studyTime = sp.studyTime || (sp.tier * 4);
-      const manaCostPerHour = Math.ceil(totalCost / studyTime);
-      
-      // Must have at least 1 hour worth of mana to start
-      if (state.rawMana < manaCostPerHour) return;
-
-      // Start studying (no upfront cost - mana is deducted per hour during study)
-      set({
-        currentAction: 'study',
-        currentStudyTarget: {
-          type: 'spell',
-          id: spellId,
-          progress: state.spells[spellId]?.studyProgress || 0,
-          required: studyTime,
-          manaCostPerHour: manaCostPerHour,
-          totalCost: totalCost,
-        },
-        spells: {
-          ...state.spells,
-          [spellId]: { ...(state.spells[spellId] || { learned: false, level: 0 }), studyProgress: state.spells[spellId]?.studyProgress || 0 },
-        },
-        log: [`📚 Started studying ${sp.name} (${manaCostPerHour} mana/hr)...`, ...state.log.slice(0, 49)],
-      });
-    },
-
-    // Cancel current study (saves progress)
-    cancelStudy: () => {
-      const state = get();
-      if (!state.currentStudyTarget) return;
-
-      // Knowledge retention bonus
-      const retentionBonus = 1 + (state.skills.knowledgeRetention || 0) * 0.2;
-      const savedProgress = Math.min(
-        state.currentStudyTarget.progress,
-        state.currentStudyTarget.required * retentionBonus
-      );
-
-      // Save progress
-      if (state.currentStudyTarget.type === 'skill') {
-        set({
-          currentStudyTarget: null,
-          currentAction: 'meditate',
-          skillProgress: {
-            ...state.skillProgress,
-            [state.currentStudyTarget.id]: savedProgress,
-          },
-          log: [`📖 Study interrupted. Progress saved.`, ...state.log.slice(0, 49)],
-        });
-      } else if (state.currentStudyTarget.type === 'spell') {
-        set({
-          currentStudyTarget: null,
-          currentAction: 'meditate',
-          spells: {
-            ...state.spells,
-            [state.currentStudyTarget.id]: {
-              ...(state.spells[state.currentStudyTarget.id] || { learned: false, level: 0 }),
-              studyProgress: savedProgress,
-            },
-          },
-          log: [`📖 Study interrupted. Progress saved.`, ...state.log.slice(0, 49)],
-        });
-      }
-    },
-
-    // Start parallel study of a skill (requires Parallel Mind upgrade)
-    startParallelStudySkill: (skillId: string) => {
-      const state = get();
-      if (state.parallelStudyTarget) return; // Already have parallel study
-      if (!state.currentStudyTarget) return; // Need primary study
-
-      const sk = SKILLS_DEF[skillId];
-      if (!sk) return;
-
-      const currentLevel = state.skills[skillId] || 0;
-      if (currentLevel >= sk.max) return;
-
-      // Can't study same thing in parallel
-      if (state.currentStudyTarget.id === skillId) return;
-
-      // Calculate mana cost for parallel study
-      const costMult = getStudyCostMultiplier(state.skills);
-      const totalCost = Math.floor(sk.base * (currentLevel + 1) * costMult);
-      const manaCostPerHour = Math.ceil(totalCost / sk.studyTime);
-
-      set({
-        parallelStudyTarget: {
-          type: 'skill',
-          id: skillId,
-          progress: state.skillProgress[skillId] || 0,
-          required: sk.studyTime,
-          manaCostPerHour: Math.ceil(manaCostPerHour / 2), // Half speed = half mana cost per tick
-          totalCost: totalCost,
-        },
-        log: [`📚 Started parallel study of ${sk.name}... (50% speed)`, ...state.log.slice(0, 49)],
-      });
-    },
-
-    // Cancel parallel study
-    cancelParallelStudy: () => {
-      set((state) => {
-        if (!state.parallelStudyTarget) return state;
-        return {
-          parallelStudyTarget: null,
-          log: ['📖 Parallel study cancelled.', ...state.log.slice(0, 49)],
-        };
-      });
-    },
-  };
-}

src/lib/game/types/index.ts

@@ -11,19 +11,6 @@ export type { AttunementSlot, AttunementDef, AttunementState, GuardianBoon, Guar
 // Spell types
 export type { SpellCost, SpellDef, SpellEffect, SpellState } from './spells';
 
-// Skill types
-export type { 
-  SkillDef, 
-  SkillUpgradeDef, 
-  SkillUpgradeEffect, 
-  SkillEvolutionPath, 
-  SkillTierDef, 
-  SkillPerkChoice, 
-  SkillUpgradeChoice,
-  PrestigeDef,
-  SkillCost
-} from './skills';
-
 // Equipment types
 export type {
   EquipmentDef,
@@ -58,21 +45,3 @@ export type {
   ActivityEventType,
   ActivityLogEntry,
 } from './game';
-
-// Game state types
-export type { 
-  RoomType, 
-  EnemyState, 
-  FloorState, 
-  AchievementDef, 
-  AchievementState, 
-  GameAction, 
-  ScheduleBlock, 
-  StudyTarget, 
-  SummonedGolem, 
-  GolemancyState, 
-  GameState, 
-  GameActionType,
-  ActivityEventType,
-  ActivityLogEntry,
-} from './game';

src/lib/game/utils/formatting.ts

@@ -1,5 +1,8 @@
 // ─── Formatting Functions ─────────────────────────────────────────────────────
 
+import { ELEMENTS } from '@/lib/game/constants';
+import type { SpellCost } from '@/lib/game/types';
+
 export function fmt(n: number): string {
   if (!isFinite(n) || isNaN(n)) return '0';
   if (n >= 1e9) return (n / 1e9).toFixed(2) + 'B';
@@ -11,3 +14,41 @@ export function fmt(n: number): string {
 export function fmtDec(n: number, d: number = 1): string {
   return isFinite(n) ? n.toFixed(d) : '0';
 }
+
+/**
+ * Format a spell cost for display
+ */
+export function formatSpellCost(cost: SpellCost): string {
+  if (cost.type === 'raw') {
+    return `${cost.amount} raw`;
+  }
+  const elemDef = ELEMENTS[cost.element || ''];
+  return `${cost.amount} ${elemDef?.sym || '?'}`;
+}
+
+/**
+ * Get the display color for a spell cost
+ */
+export function getSpellCostColor(cost: SpellCost): string {
+  if (cost.type === 'raw') {
+    return '#60A5FA'; // Blue for raw mana
+  }
+  return ELEMENTS[cost.element || '']?.color || '#9CA3AF';
+}
+
+/**
+ * Format study time in hours to human-readable string
+ */
+export function formatStudyTime(hours: number): string {
+  if (hours < 1) return `${Math.round(hours * 60)}m`;
+  return `${hours.toFixed(1)}h`;
+}
+
+/**
+ * Format time (hour of day) to HH:MM format
+ */
+export function formatHour(hour: number): string {
+  const h = Math.floor(hour);
+  const m = Math.floor((hour % 1) * 60);
+  return `${h.toString().padStart(2, '0')}:${m.toString().padStart(2, '0')}`;
+}

src/lib/game/utils/index.ts

@@ -1,7 +1,7 @@
 // ─── Game Utilities - Barrel Export ──────────────────────────────────────────
 
 // Re-export everything from the focused modules
-export { fmt, fmtDec } from './formatting';
+export { fmt, fmtDec, formatSpellCost, getSpellCostColor, formatStudyTime, formatHour } from './formatting';
 export { getFloorMaxHP, getFloorElement } from './floor-utils';
 export { 
   computeMaxMana,