Redesign skill system around attunements

- Add attunementLevel field to SkillDef type
- Organize skills into Core, Enchanter, Invoker, and Fabricator trees
- Core skills (mana, study, ascension) available to all players
- Enchanter skills require Enchanter attunement and scale with level
- Invoker skills for pact mastery and invocation (requires Invoker attunement)
- Fabricator skills for golemancy and fabrication (requires Fabricator attunement)
- Add attunement level requirements for advanced skills (Lv 3, 5, 7, 8)
- Update SkillsTab UI to show attunement requirements
- Update store to validate attunement requirements before studying

src/components/game/tabs/SkillsTab.tsx

@@ -186,6 +186,21 @@ export function SkillsTab({ store }: SkillsTabProps) {
                   const tierDef = SKILL_EVOLUTION_PATHS[id]?.tiers.find(t => t.tier === currentTier);
                   const skillDisplayName = tierDef?.name || def.name;
                   
+                  // Check attunement requirements
+                  let attunementMet = true;
+                  let attunementReqText = '';
+                  if (def.attunement) {
+                    const attState = store.attunements?.[def.attunement];
+                    const requiredLevel = def.attunementLevel || 1;
+                    if (!attState?.active) {
+                      attunementMet = false;
+                      attunementReqText = `Requires ${def.attunement.charAt(0).toUpperCase() + def.attunement.slice(1)} attunement`;
+                    } else if ((attState.level || 1) < requiredLevel) {
+                      attunementMet = false;
+                      attunementReqText = `Requires ${def.attunement.charAt(0).toUpperCase() + def.attunement.slice(1)} Lv.${requiredLevel}`;
+                    }
+                  }
+                  
                   // Check prerequisites
                   let prereqMet = true;
                   if (def.req) {
@@ -212,7 +227,7 @@ export function SkillsTab({ store }: SkillsTabProps) {
                   const cost = Math.floor(baseCost * costMult);
                   
                   // Can start studying?
-                  const canStudy = !maxed && prereqMet && store.rawMana >= cost && !isStudying;
+                  const canStudy = !maxed && attunementMet && prereqMet && store.rawMana >= cost && !isStudying;
                   
                   // Check for milestone upgrades
                   const milestoneInfo = hasMilestoneUpgrade(tieredSkillId, level, store.skillTiers || {}, store.skillUpgrades);
@@ -254,6 +269,11 @@ export function SkillsTab({ store }: SkillsTabProps) {
                           )}
                         </div>
                         <div className="text-xs text-gray-400 italic">{def.desc}{currentTier > 1 && ` (Tier ${currentTier}: ${fmtDec(tierMultiplier, 0)}x effect)`}</div>
+                        {!attunementMet && attunementReqText && (
+                          <div className="text-xs text-orange-400 mt-1">
+                            🔒 {attunementReqText}
+                          </div>
+                        )}
                         {!prereqMet && def.req && (
                           <div className="text-xs text-red-400 mt-1">
                             Requires: {Object.entries(def.req).map(([r, rl]) => `${SKILLS_DEF[r]?.name} Lv.${rl}`).join(', ')}

src/lib/game/constants.ts

@@ -651,82 +651,140 @@ export const SPELLS_DEF: Record<string, SpellDef> = {
 };
 
 // ─── Skills ───────────────────────────────────────────────────────────────────
+// Skills are organized by attunement - each attunement has its own skill tree
+// Core skills are available to everyone, attunement skills require the attunement
 export const SKILLS_DEF: Record<string, SkillDef> = {
-  // Mana Skills (4-8 hours study)
+  // ═══════════════════════════════════════════════════════════════════════════
+  // CORE SKILLS (Always Available)
+  // ═══════════════════════════════════════════════════════════════════════════
+  
+  // Mana Skills (foundation for all mana manipulation)
   manaWell:      { name: "Mana Well",      desc: "+100 max mana",         cat: "mana",   max: 10, base: 100, studyTime: 4 },
   manaFlow:      { name: "Mana Flow",      desc: "+1 regen/hr",           cat: "mana",   max: 10, base: 150, studyTime: 5 },
   elemAttune:    { name: "Elem. Attunement", desc: "+50 elem mana cap",   cat: "mana",   max: 10, base: 200, studyTime: 4 },
   manaOverflow:  { name: "Mana Overflow",  desc: "+25% mana from clicks", cat: "mana",   max: 5,  base: 400, req: { manaWell: 3 }, studyTime: 6 },
+  manaTap:       { name: "Mana Tap",       desc: "+1 mana/click",         cat: "mana",   max: 1,  base: 300, studyTime: 12 },
+  manaSurge:     { name: "Mana Surge",     desc: "+3 mana/click",         cat: "mana",   max: 1,  base: 800, studyTime: 36, req: { manaTap: 1 } },
+  manaSpring:    { name: "Mana Spring",    desc: "+2 mana regen",         cat: "mana",   max: 1,  base: 600, studyTime: 24 },
 
-  // Study Skills (3-6 hours study)
+  // Study Skills (improve learning efficiency)
   quickLearner:  { name: "Quick Learner",   desc: "+10% study speed",     cat: "study",  max: 10, base: 250, studyTime: 4 },
   focusedMind:   { name: "Focused Mind",    desc: "-5% study mana cost",  cat: "study",  max: 10, base: 300, studyTime: 5 },
   meditation:    { name: "Meditation Focus", desc: "Up to 2.5x regen after 4hrs meditating", cat: "study", max: 1, base: 400, studyTime: 6 },
   knowledgeRetention: { name: "Knowledge Retention", desc: "+20% study progress saved on cancel", cat: "study", max: 3, base: 350, studyTime: 5 },
+  deepTrance:    { name: "Deep Trance",     desc: "Extend meditation to 6hrs for 3x", cat: "study", max: 1, base: 900, studyTime: 48, req: { meditation: 1 } },
+  voidMeditation:{ name: "Void Meditation", desc: "Extend meditation to 8hrs for 5x", cat: "study", max: 1, base: 1500, studyTime: 72, req: { deepTrance: 1 } },
 
-  // Enchanting Skills (4-8 hours study) - Core crafting system
+  // Ascension Skills (powerful effects for endgame)
-  enchanting:       { name: "Enchanting",       desc: "Unlocks enchantment design", cat: "enchant", max: 10, base: 200, studyTime: 5 },
-  efficientEnchant:{ name: "Efficient Enchant", desc: "-5% enchantment capacity cost", cat: "enchant", max: 5, base: 350, studyTime: 6, req: { enchanting: 3 } },
-  disenchanting:    { name: "Disenchanting",    desc: "Recover 20% mana from removed enchantments", cat: "enchant", max: 3, base: 400, studyTime: 6, req: { enchanting: 2 } },
-  enchantSpeed:     { name: "Enchant Speed",    desc: "-10% enchantment time", cat: "enchant", max: 5, base: 300, studyTime: 4, req: { enchanting: 2 } },
-  scrollCrafting:   { name: "Scroll Crafting",  desc: "Create scrolls to store enchantment designs", cat: "enchant", max: 3, base: 500, studyTime: 8, req: { enchanting: 5 } },
-  essenceRefining:  { name: "Essence Refining", desc: "+10% enchantment effect power", cat: "enchant", max: 5, base: 450, studyTime: 7, req: { enchanting: 4 } },
-
-  // Crafting Skills (4-6 hours study)
-  effCrafting:   { name: "Eff. Crafting",   desc: "-10% craft time",      cat: "craft",  max: 5,  base: 300, studyTime: 4 },
-  fieldRepair:   { name: "Field Repair",    desc: "+15% repair efficiency", cat: "craft", max: 5, base: 350, studyTime: 4 },
-  elemCrafting:  { name: "Elem. Crafting",  desc: "+25% craft output",    cat: "craft",  max: 3, base: 500, req: { effCrafting: 3 }, studyTime: 8 },
-
-  // Effect Research Skills (unlock enchantment effects for designing)
-  // Tier 1 - Basic Spell Effects
-  researchManaSpells: { name: "Mana Spell Research", desc: "Unlock Mana Strike spell enchantment", cat: "effectResearch", max: 1, base: 200, studyTime: 4, req: { enchanting: 1 } },
-  researchFireSpells: { name: "Fire Spell Research", desc: "Unlock Ember Shot, Fireball spell enchantments", cat: "effectResearch", max: 1, base: 300, studyTime: 6, req: { enchanting: 2 } },
-  researchWaterSpells: { name: "Water Spell Research", desc: "Unlock Water Jet, Ice Shard spell enchantments", cat: "effectResearch", max: 1, base: 300, studyTime: 6, req: { enchanting: 2 } },
-  researchAirSpells: { name: "Air Spell Research", desc: "Unlock Gust, Wind Slash spell enchantments", cat: "effectResearch", max: 1, base: 300, studyTime: 6, req: { enchanting: 2 } },
-  researchEarthSpells: { name: "Earth Spell Research", desc: "Unlock Stone Bullet, Rock Spike spell enchantments", cat: "effectResearch", max: 1, base: 350, studyTime: 6, req: { enchanting: 2 } },
-  researchLightSpells: { name: "Light Spell Research", desc: "Unlock Light Lance, Radiance spell enchantments", cat: "effectResearch", max: 1, base: 400, studyTime: 8, req: { enchanting: 3 } },
-  researchDarkSpells: { name: "Dark Spell Research", desc: "Unlock Shadow Bolt, Dark Pulse spell enchantments", cat: "effectResearch", max: 1, base: 400, studyTime: 8, req: { enchanting: 3 } },
-  researchLifeDeathSpells: { name: "Life & Death Research", desc: "Unlock Drain, Life Tap spell enchantments", cat: "effectResearch", max: 1, base: 400, studyTime: 8, req: { enchanting: 3 } },
-  
-  // Tier 2 - Advanced Spell Effects
-  researchAdvancedFire: { name: "Advanced Fire Research", desc: "Unlock Inferno, Flame Wave spell enchantments", cat: "effectResearch", max: 1, base: 600, studyTime: 12, req: { researchFireSpells: 1, enchanting: 4 } },
-  researchAdvancedWater: { name: "Advanced Water Research", desc: "Unlock Tidal Wave, Ice Storm spell enchantments", cat: "effectResearch", max: 1, base: 600, studyTime: 12, req: { researchWaterSpells: 1, enchanting: 4 } },
-  researchAdvancedAir: { name: "Advanced Air Research", desc: "Unlock Hurricane, Wind Blade spell enchantments", cat: "effectResearch", max: 1, base: 600, studyTime: 12, req: { researchAirSpells: 1, enchanting: 4 } },
-  researchAdvancedEarth: { name: "Advanced Earth Research", desc: "Unlock Earthquake, Stone Barrage spell enchantments", cat: "effectResearch", max: 1, base: 600, studyTime: 12, req: { researchEarthSpells: 1, enchanting: 4 } },
-  researchAdvancedLight: { name: "Advanced Light Research", desc: "Unlock Solar Flare, Divine Smite spell enchantments", cat: "effectResearch", max: 1, base: 700, studyTime: 14, req: { researchLightSpells: 1, enchanting: 5 } },
-  researchAdvancedDark: { name: "Advanced Dark Research", desc: "Unlock Void Rift, Shadow Storm spell enchantments", cat: "effectResearch", max: 1, base: 700, studyTime: 14, req: { researchDarkSpells: 1, enchanting: 5 } },
-  
-  // Tier 3 - Master Spell Effects
-  researchMasterFire: { name: "Master Fire Research", desc: "Unlock Pyroclasm spell enchantment", cat: "effectResearch", max: 1, base: 1200, studyTime: 24, req: { researchAdvancedFire: 1, enchanting: 7 } },
-  researchMasterWater: { name: "Master Water Research", desc: "Unlock Tsunami spell enchantment", cat: "effectResearch", max: 1, base: 1200, studyTime: 24, req: { researchAdvancedWater: 1, enchanting: 7 } },
-  researchMasterEarth: { name: "Master Earth Research", desc: "Unlock Meteor Strike spell enchantment", cat: "effectResearch", max: 1, base: 1300, studyTime: 26, req: { researchAdvancedEarth: 1, enchanting: 8 } },
-  
-  // Combat Effect Research
-  researchDamageEffects: { name: "Damage Effect Research", desc: "Unlock Minor/Moderate Power, Amplification effects", cat: "effectResearch", max: 1, base: 250, studyTime: 5, req: { enchanting: 1 } },
-  researchCombatEffects: { name: "Combat Effect Research", desc: "Unlock Sharp Edge, Swift Casting effects", cat: "effectResearch", max: 1, base: 350, studyTime: 6, req: { researchDamageEffects: 1, enchanting: 3 } },
-  
-  // Mana Effect Research
-  researchManaEffects: { name: "Mana Effect Research", desc: "Unlock Mana Reserve, Trickle, Mana Tap effects", cat: "effectResearch", max: 1, base: 200, studyTime: 4, req: { enchanting: 1 } },
-  researchAdvancedManaEffects: { name: "Advanced Mana Research", desc: "Unlock Mana Reservoir, Stream, River, Mana Surge effects", cat: "effectResearch", max: 1, base: 400, studyTime: 8, req: { researchManaEffects: 1, enchanting: 3 } },
-  
-  // Utility Effect Research
-  researchUtilityEffects: { name: "Utility Effect Research", desc: "Unlock Meditative Focus, Quick Study, Insightful effects", cat: "effectResearch", max: 1, base: 300, studyTime: 6, req: { enchanting: 2 } },
-  
-  // Special Effect Research
-  researchSpecialEffects: { name: "Special Effect Research", desc: "Unlock Echo Chamber, Siphoning, Bane effects", cat: "effectResearch", max: 1, base: 500, studyTime: 10, req: { enchanting: 4 } },
-  researchOverpower: { name: "Overpower Research", desc: "Unlock Overpower effect", cat: "effectResearch", max: 1, base: 700, studyTime: 12, req: { researchSpecialEffects: 1, enchanting: 5 } },
-
-  // Research Skills (longer study times: 12-72 hours)
-  manaTap:       { name: "Mana Tap",        desc: "+1 mana/click",        cat: "research", max: 1, base: 300, studyTime: 12 },
-  manaSurge:     { name: "Mana Surge",      desc: "+3 mana/click",        cat: "research", max: 1, base: 800, studyTime: 36, req: { manaTap: 1 } },
-  manaSpring:    { name: "Mana Spring",     desc: "+2 mana regen",        cat: "research", max: 1, base: 600, studyTime: 24 },
-  deepTrance:    { name: "Deep Trance",     desc: "Extend meditation bonus to 6hrs for 3x", cat: "research", max: 1, base: 900, studyTime: 48, req: { meditation: 1 } },
-  voidMeditation:{ name: "Void Meditation", desc: "Extend meditation bonus to 8hrs for 5x", cat: "research", max: 1, base: 1500, studyTime: 72, req: { deepTrance: 1 } },
-
-  // Ascension Skills (very long study, powerful effects)
   insightHarvest: { name: "Insight Harvest", desc: "+10% insight gain",   cat: "ascension", max: 5, base: 1000, studyTime: 20 },
-  temporalMemory: { name: "Temporal Memory", desc: "Keep 1 spell learned across loops", cat: "ascension", max: 3, base: 2000, studyTime: 36 },
+  temporalMemory: { name: "Temporal Memory", desc: "Keep 1 spell across loops", cat: "ascension", max: 3, base: 2000, studyTime: 36 },
   guardianBane:  { name: "Guardian Bane",   desc: "+20% dmg vs guardians", cat: "ascension", max: 3, base: 1500, studyTime: 30 },
+
+  // ═══════════════════════════════════════════════════════════════════════════
+  // ENCHANTER SKILLS (Right Hand Attunement)
+  // Transference mana flows through your right hand for enchanting
+  // ═══════════════════════════════════════════════════════════════════════════
+  
+  // Basic Enchanting (Lv 1)
+  enchanting:       { name: "Enchanting",       desc: "Unlocks enchantment design", cat: "enchant", attunement: 'enchanter', attunementLevel: 1, max: 10, base: 200, studyTime: 5 },
+  efficientEnchant:{ name: "Efficient Enchant", desc: "-5% enchantment capacity cost", cat: "enchant", attunement: 'enchanter', attunementLevel: 1, max: 5, base: 350, studyTime: 6, req: { enchanting: 3 } },
+  disenchanting:    { name: "Disenchanting",    desc: "Recover 20% mana from removed enchantments", cat: "enchant", attunement: 'enchanter', attunementLevel: 1, max: 3, base: 400, studyTime: 6, req: { enchanting: 2 } },
+  enchantSpeed:     { name: "Enchant Speed",    desc: "-10% enchantment time", cat: "enchant", attunement: 'enchanter', attunementLevel: 1, max: 5, base: 300, studyTime: 4, req: { enchanting: 2 } },
+  
+  // Advanced Enchanting (Lv 3)
+  scrollCrafting:   { name: "Scroll Crafting",  desc: "Create scrolls to store enchantment designs", cat: "enchant", attunement: 'enchanter', attunementLevel: 3, max: 3, base: 500, studyTime: 8, req: { enchanting: 5 } },
+  essenceRefining:  { name: "Essence Refining", desc: "+10% enchantment effect power", cat: "enchant", attunement: 'enchanter', attunementLevel: 3, max: 5, base: 450, studyTime: 7, req: { enchanting: 4 } },
+  transferenceMastery: { name: "Transference Mastery", desc: "+25% transference mana conversion", cat: "enchant", attunement: 'enchanter', attunementLevel: 3, max: 3, base: 600, studyTime: 10, req: { enchanting: 5 } },
+  
+  // Master Enchanting (Lv 5+)
+  soulBinding:      { name: "Soul Binding",    desc: "Enchantments persist through loops", cat: "enchant", attunement: 'enchanter', attunementLevel: 5, max: 2, base: 1500, studyTime: 24, req: { essenceRefining: 3 } },
+  ancientEcho:      { name: "Ancient Echo",     desc: "+1 enchantment capacity per 2 Enchanter levels", cat: "enchant", attunement: 'enchanter', attunementLevel: 5, max: 5, base: 1000, studyTime: 16 },
+  
+  // Effect Research (Lv 2+)
+  researchManaSpells: { name: "Mana Spell Research", desc: "Unlock Mana Strike spell enchantment", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 1, max: 1, base: 200, studyTime: 4, req: { enchanting: 1 } },
+  researchFireSpells: { name: "Fire Spell Research", desc: "Unlock Ember Shot, Fireball spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 2, max: 1, base: 300, studyTime: 6, req: { enchanting: 2 } },
+  researchWaterSpells: { name: "Water Spell Research", desc: "Unlock Water Jet, Ice Shard spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 2, max: 1, base: 300, studyTime: 6, req: { enchanting: 2 } },
+  researchAirSpells: { name: "Air Spell Research", desc: "Unlock Gust, Wind Slash spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 2, max: 1, base: 300, studyTime: 6, req: { enchanting: 2 } },
+  researchEarthSpells: { name: "Earth Spell Research", desc: "Unlock Stone Bullet, Rock Spike spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 2, max: 1, base: 350, studyTime: 6, req: { enchanting: 2 } },
+  researchLightSpells: { name: "Light Spell Research", desc: "Unlock Light Lance, Radiance spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 3, max: 1, base: 400, studyTime: 8, req: { enchanting: 3 } },
+  researchDarkSpells: { name: "Dark Spell Research", desc: "Unlock Shadow Bolt, Dark Pulse spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 3, max: 1, base: 400, studyTime: 8, req: { enchanting: 3 } },
+  researchLifeDeathSpells: { name: "Life & Death Research", desc: "Unlock Drain, Life Tap spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 3, max: 1, base: 400, studyTime: 8, req: { enchanting: 3 } },
+  
+  // Advanced Effect Research (Lv 4+)
+  researchAdvancedFire: { name: "Advanced Fire Research", desc: "Unlock Inferno, Flame Wave spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 4, max: 1, base: 600, studyTime: 12, req: { researchFireSpells: 1, enchanting: 4 } },
+  researchAdvancedWater: { name: "Advanced Water Research", desc: "Unlock Tidal Wave, Ice Storm spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 4, max: 1, base: 600, studyTime: 12, req: { researchWaterSpells: 1, enchanting: 4 } },
+  researchAdvancedAir: { name: "Advanced Air Research", desc: "Unlock Hurricane, Wind Blade spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 4, max: 1, base: 600, studyTime: 12, req: { researchAirSpells: 1, enchanting: 4 } },
+  researchAdvancedEarth: { name: "Advanced Earth Research", desc: "Unlock Earthquake, Stone Barrage spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 4, max: 1, base: 600, studyTime: 12, req: { researchEarthSpells: 1, enchanting: 4 } },
+  researchAdvancedLight: { name: "Advanced Light Research", desc: "Unlock Solar Flare, Divine Smite spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 5, max: 1, base: 700, studyTime: 14, req: { researchLightSpells: 1, enchanting: 5 } },
+  researchAdvancedDark: { name: "Advanced Dark Research", desc: "Unlock Void Rift, Shadow Storm spell enchantments", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 5, max: 1, base: 700, studyTime: 14, req: { researchDarkSpells: 1, enchanting: 5 } },
+  
+  // Master Effect Research (Lv 7+)
+  researchMasterFire: { name: "Master Fire Research", desc: "Unlock Pyroclasm spell enchantment", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 7, max: 1, base: 1200, studyTime: 24, req: { researchAdvancedFire: 1, enchanting: 7 } },
+  researchMasterWater: { name: "Master Water Research", desc: "Unlock Tsunami spell enchantment", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 7, max: 1, base: 1200, studyTime: 24, req: { researchAdvancedWater: 1, enchanting: 7 } },
+  researchMasterEarth: { name: "Master Earth Research", desc: "Unlock Meteor Strike spell enchantment", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 8, max: 1, base: 1300, studyTime: 26, req: { researchAdvancedEarth: 1, enchanting: 8 } },
+  
+  // Combat & Utility Effect Research
+  researchDamageEffects: { name: "Damage Effect Research", desc: "Unlock Minor/Moderate Power, Amplification effects", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 1, max: 1, base: 250, studyTime: 5, req: { enchanting: 1 } },
+  researchCombatEffects: { name: "Combat Effect Research", desc: "Unlock Sharp Edge, Swift Casting effects", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 3, max: 1, base: 350, studyTime: 6, req: { researchDamageEffects: 1, enchanting: 3 } },
+  researchManaEffects: { name: "Mana Effect Research", desc: "Unlock Mana Reserve, Trickle, Mana Tap effects", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 1, max: 1, base: 200, studyTime: 4, req: { enchanting: 1 } },
+  researchAdvancedManaEffects: { name: "Advanced Mana Research", desc: "Unlock Mana Reservoir, Stream, River effects", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 3, max: 1, base: 400, studyTime: 8, req: { researchManaEffects: 1, enchanting: 3 } },
+  researchUtilityEffects: { name: "Utility Effect Research", desc: "Unlock Meditative Focus, Quick Study, Insightful effects", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 2, max: 1, base: 300, studyTime: 6, req: { enchanting: 2 } },
+  researchSpecialEffects: { name: "Special Effect Research", desc: "Unlock Echo Chamber, Siphoning, Bane effects", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 4, max: 1, base: 500, studyTime: 10, req: { enchanting: 4 } },
+  researchOverpower: { name: "Overpower Research", desc: "Unlock Overpower effect", cat: "effectResearch", attunement: 'enchanter', attunementLevel: 5, max: 1, base: 700, studyTime: 12, req: { researchSpecialEffects: 1, enchanting: 5 } },
+
+  // ═══════════════════════════════════════════════════════════════════════════
+  // INVOKER SKILLS (Chest Attunement)
+  // Form pacts with guardians, gain their elemental powers
+  // ═══════════════════════════════════════════════════════════════════════════
+  
+  // Pact Fundamentals (Lv 1)
+  pactMastery:     { name: "Pact Mastery",     desc: "+10% pact multiplier bonus", cat: "pact", attunement: 'invoker', attunementLevel: 1, max: 5, base: 300, studyTime: 6 },
+  guardianAffinity:{ name: "Guardian Affinity", desc: "-15% pact signing time", cat: "pact", attunement: 'invoker', attunementLevel: 1, max: 5, base: 350, studyTime: 5 },
+  elementalBond:   { name: "Elemental Bond",    desc: "+20 elemental mana cap per pact", cat: "pact", attunement: 'invoker', attunementLevel: 1, max: 5, base: 400, studyTime: 6 },
+  
+  // Invocation Basics (Lv 2)
+  invocationBasics:{ name: "Invocation Basics", desc: "Unlock guardian power activation", cat: "invocation", attunement: 'invoker', attunementLevel: 1, max: 1, base: 500, studyTime: 8 },
+  powerChannel:    { name: "Power Channel",     desc: "+15% guardian power effectiveness", cat: "invocation", attunement: 'invoker', attunementLevel: 2, max: 5, base: 400, studyTime: 7, req: { invocationBasics: 1 } },
+  elementalResonance: { name: "Elemental Resonance", desc: "+25% elemental damage per pact", cat: "invocation", attunement: 'invoker', attunementLevel: 2, max: 3, base: 500, studyTime: 8 },
+  
+  // Advanced Invocation (Lv 4+)
+  dualInvocation:  { name: "Dual Invocation",   desc: "Activate 2 guardian powers at once", cat: "invocation", attunement: 'invoker', attunementLevel: 4, max: 1, base: 1200, studyTime: 18, req: { powerChannel: 3 } },
+  pactSynergy:     { name: "Pact Synergy",      desc: "+5% all stats per pact (stacking)", cat: "pact", attunement: 'invoker', attunementLevel: 3, max: 5, base: 600, studyTime: 10, req: { pactMastery: 3 } },
+  guardianCaller:  { name: "Guardian Caller",   desc: "Summon guardian spirit for 1 floor", cat: "invocation", attunement: 'invoker', attunementLevel: 5, max: 1, base: 1500, studyTime: 20, req: { dualInvocation: 1 } },
+  
+  // Master Invocation (Lv 7+)
+  primordialPact:  { name: "Primordial Pact",   desc: "+50% to all pact boons", cat: "pact", attunement: 'invoker', attunementLevel: 7, max: 1, base: 2000, studyTime: 30, req: { pactSynergy: 5 } },
+  awakenedHeart:   { name: "Awakened Heart",    desc: "Permanent +1 mana regen per pact", cat: "invocation", attunement: 'invoker', attunementLevel: 8, max: 1, base: 2500, studyTime: 36, req: { guardianCaller: 1 } },
+
+  // ═══════════════════════════════════════════════════════════════════════════
+  // FABRICATOR SKILLS (Left Hand Attunement)
+  // Shape earth and metal to craft golems and equipment
+  // ═══════════════════════════════════════════════════════════════════════════
+  
+  // Golemancy Basics (Lv 1)
+  golemancy:       { name: "Golemancy",         desc: "Unlock basic golem crafting", cat: "golemancy", attunement: 'fabricator', attunementLevel: 1, max: 1, base: 400, studyTime: 8 },
+  golemVitality:   { name: "Golem Vitality",    desc: "+20% golem HP", cat: "golemancy", attunement: 'fabricator', attunementLevel: 1, max: 5, base: 350, studyTime: 5, req: { golemancy: 1 } },
+  golemEfficiency: { name: "Golem Efficiency",  desc: "-10% golem mana cost", cat: "golemancy", attunement: 'fabricator', attunementLevel: 1, max: 5, base: 400, studyTime: 6, req: { golemancy: 1 } },
+  
+  // Fabrication Basics (Lv 1)
+  fabrication:     { name: "Fabrication",       desc: "Unlock equipment crafting", cat: "fabrication", attunement: 'fabricator', attunementLevel: 1, max: 5, base: 300, studyTime: 6 },
+  efficientCrafting:{ name: "Efficient Crafting", desc: "-10% craft time", cat: "fabrication", attunement: 'fabricator', attunementLevel: 1, max: 5, base: 300, studyTime: 4, req: { fabrication: 1 } },
+  fieldRepair:     { name: "Field Repair",      desc: "+15% repair efficiency", cat: "fabrication", attunement: 'fabricator', attunementLevel: 1, max: 5, base: 350, studyTime: 4 },
+  earthShaping:    { name: "Earth Shaping",     desc: "+25% earth mana conversion", cat: "fabrication", attunement: 'fabricator', attunementLevel: 1, max: 5, base: 400, studyTime: 6 },
+  
+  // Advanced Fabrication (Lv 3+)
+  metalworking:    { name: "Metalworking",      desc: "Unlock metal equipment recipes", cat: "fabrication", attunement: 'fabricator', attunementLevel: 3, max: 1, base: 800, studyTime: 12, req: { fabrication: 3 } },
+  golemCommand:    { name: "Golem Command",     desc: "Control +1 golem simultaneously", cat: "golemancy", attunement: 'fabricator', attunementLevel: 3, max: 2, base: 700, studyTime: 10, req: { golemancy: 1, golemVitality: 3 } },
+  runicCarving:    { name: "Runic Carving",     desc: "Equipment has +10% base capacity", cat: "fabrication", attunement: 'fabricator', attunementLevel: 3, max: 3, base: 600, studyTime: 8, req: { fabrication: 3 } },
+  
+  // Master Fabrication (Lv 5+)
+  alloyMastery:    { name: "Alloy Mastery",     desc: "Unlock advanced alloy recipes", cat: "fabrication", attunement: 'fabricator', attunementLevel: 5, max: 1, base: 1200, studyTime: 18, req: { metalworking: 1 } },
+  golemancyMaster: { name: "Golemancy Master",  desc: "Golems have +50% all stats", cat: "golemancy", attunement: 'fabricator', attunementLevel: 5, max: 1, base: 1500, studyTime: 20, req: { golemCommand: 2 } },
+  earthsHeart:     { name: "Earth's Heart",     desc: "+1 earth mana per Fabricator level/hr", cat: "fabrication", attunement: 'fabricator', attunementLevel: 5, max: 1, base: 1000, studyTime: 14, req: { earthShaping: 5 } },
+  
+  // Legendary Fabrication (Lv 8+)
+  legendaryCraft:  { name: "Legendary Crafting", desc: "Chance for crafted items to gain +1 tier", cat: "fabrication", attunement: 'fabricator', attunementLevel: 8, max: 1, base: 2500, studyTime: 30, req: { alloyMastery: 1, runicCarving: 3 } },
+  awakenedHand:    { name: "Awakened Hand",      desc: "Craft time -50%, +25% quality", cat: "fabrication", attunement: 'fabricator', attunementLevel: 8, max: 1, base: 3000, studyTime: 36, req: { legendaryCraft: 1 } },
 };
 
 // ─── Prestige Upgrades ────────────────────────────────────────────────────────
@@ -747,28 +805,32 @@ export const PRESTIGE_DEF: Record<string, PrestigeDef> = {
 };
 
 // ─── Skill Categories ─────────────────────────────────────────────────────────
-// Skills are now organized by attunement - each attunement grants access to specific skill categories
+// Skills are organized by attunement - each attunement grants access to specific skill categories
 export const SKILL_CATEGORIES = [
-  // Core categories (always available)
+  // ═══════════════════════════════════════════════════════════════════════════
+  // CORE CATEGORIES (Always Available)
+  // ═══════════════════════════════════════════════════════════════════════════
   { id: 'mana', name: 'Mana', icon: '💧', attunement: null },
   { id: 'study', name: 'Study', icon: '📚', attunement: null },
-  { id: 'research', name: 'Research', icon: '🔮', attunement: null },
   { id: 'ascension', name: 'Ascension', icon: '⭐', attunement: null },
   
-  // Enchanter attunement (Right Hand)
+  // ═══════════════════════════════════════════════════════════════════════════
+  // ENCHANTER (Right Hand Attunement)
+  // ═══════════════════════════════════════════════════════════════════════════
   { id: 'enchant', name: 'Enchanting', icon: '✨', attunement: 'enchanter' },
   { id: 'effectResearch', name: 'Effect Research', icon: '🔬', attunement: 'enchanter' },
   
-  // Invoker attunement (Chest)
+  // ═══════════════════════════════════════════════════════════════════════════
+  // INVOKER (Chest Attunement)
+  // ═══════════════════════════════════════════════════════════════════════════
   { id: 'invocation', name: 'Invocation', icon: '💜', attunement: 'invoker' },
   { id: 'pact', name: 'Pact Mastery', icon: '🤝', attunement: 'invoker' },
   
-  // Fabricator attunement (Left Hand)
+  // ═══════════════════════════════════════════════════════════════════════════
+  // FABRICATOR (Left Hand Attunement)
+  // ═══════════════════════════════════════════════════════════════════════════
   { id: 'fabrication', name: 'Fabrication', icon: '⚒️', attunement: 'fabricator' },
   { id: 'golemancy', name: 'Golemancy', icon: '🗿', attunement: 'fabricator' },
-  
-  // Legacy category (for backward compatibility)
-  { id: 'craft', name: 'Crafting', icon: '🔧', attunement: null },
 ];
 
 // ─── Rarity Colors ───────────────────────────────────────────────────────────

src/lib/game/store.ts

@@ -1000,6 +1000,14 @@ export const useGameStore = create<GameStore>()(
         const currentLevel = state.skills[skillId] || 0;
         if (currentLevel >= sk.max) return;
 
+        // Check attunement requirement
+        if (sk.attunement) {
+          const attState = state.attunements?.[sk.attunement];
+          if (!attState?.active) return; // Attunement not active
+          const requiredLevel = sk.attunementLevel || 1;
+          if ((attState.level || 1) < requiredLevel) return; // Attunement level too low
+        }
+
         // Check prerequisites
         if (sk.req) {
           for (const [r, rl] of Object.entries(sk.req)) {

src/lib/game/types.ts

@@ -103,6 +103,7 @@ export interface SkillDef {
   desc: string;
   cat: string;
   attunement?: string;  // Which attunement this skill belongs to (null = core)
+  attunementLevel?: number; // Minimum attunement level required (default 1)
   max: number;
   base: number;             // Mana cost to start studying
   req?: Record<string, number>;