feat: recreate Achievements tab with category sections, progress tracking, and hidden achievement logic

src/app/page.tsx

@@ -44,6 +44,7 @@ import { LeftPanel } from './components/LeftPanel';
 const DisciplinesTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.DisciplinesTab })));
 const SpellsTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.SpellsTab })));
 const StatsTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.StatsTab })));
+const AchievementsTab = lazy(() => import('@/components/game/tabs').then(module => ({ default: module.AchievementsTab })));
 
 const TabLoadingFallback = () => <div className="p-4 text-center text-gray-400">Loading...</div>;
 
@@ -233,6 +234,7 @@ export default function ManaLoopGame() {
                   <TabsTrigger value="stats" className="text-xs px-2 py-1">📊 Stats</TabsTrigger>
                   <TabsTrigger value="disciplines" className="text-xs px-2 py-1">📚 Disciplines</TabsTrigger>
                   <TabsTrigger value="grimoire" className="text-xs px-2 py-1">📖 Grimoire</TabsTrigger>
+                  <TabsTrigger value="achievements" className="text-xs px-2 py-1">🏆 Achievements</TabsTrigger>
                 </TabsList>
 
                 <TabsContent value="spells">
@@ -262,6 +264,14 @@ export default function ManaLoopGame() {
                 <TabsContent value="grimoire">
                   <GrimoireTab />
                 </TabsContent>
+
+                <TabsContent value="achievements">
+                  <ErrorBoundary fallback={<div className="p-4 text-red-400">achievements tab failed to load.</div>}>
+                    <Suspense fallback={<TabLoadingFallback />}>
+                      <AchievementsTab />
+                    </Suspense>
+                  </ErrorBoundary>
+                </TabsContent>
               </Tabs>
             </div>
           </main>

src/components/game/tabs/AchievementsTab.tsx

@@ -0,0 +1,250 @@
+'use client';
+
+import { useState, useMemo, useEffect } from 'react';
+import { useCombatStore } from '@/lib/game/stores';
+import {
+  ACHIEVEMENTS,
+  ACHIEVEMENT_CATEGORY_COLORS,
+  getAchievementsByCategory,
+  isAchievementRevealed,
+} from '@/lib/game/data/achievements';
+import type { AchievementDef } from '@/lib/game/types';
+import { Card, CardContent } from '@/components/ui/card';
+import { Badge } from '@/components/ui/badge';
+import { Progress } from '@/components/ui/progress';
+import { ScrollArea } from '@/components/ui/scroll-area';
+import { SectionHeader } from '@/components/ui/section-header';
+import { DebugName } from '@/components/game/debug/debug-context';
+import { fmt } from '@/lib/game/stores';
+
+// ─── Helpers ─────────────────────────────────────────────────────────────────
+
+const CATEGORY_LABELS: Record<string, string> = {
+  combat: '⚔️ Combat',
+  progression: '📈 Progression',
+  crafting: '🔨 Crafting',
+  magic: '✨ Magic',
+  special: '🌟 Special',
+};
+
+function getProgressForAchievement(
+  achievement: AchievementDef,
+  progress: Record<string, number>,
+): number {
+  return progress[achievement.id] ?? 0;
+}
+
+function getProgressPercent(achievement: AchievementDef, current: number): number {
+  if (achievement.requirement.value <= 0) return 100;
+  return Math.min(100, Math.round((current / achievement.requirement.value) * 100));
+}
+
+function formatReward(reward: AchievementDef['reward']): string {
+  const parts: string[] = [];
+  if (reward.insight) parts.push(`${reward.insight} insight`);
+  if (reward.manaBonus) parts.push(`+${reward.manaBonus} mana`);
+  if (reward.damageBonus) parts.push(`+${(reward.damageBonus * 100).toFixed(0)}% dmg`);
+  if (reward.regenBonus) parts.push(`+${reward.regenBonus} regen`);
+  if (reward.title) parts.push(`title: "${reward.title}"`);
+  if (reward.unlockEffect) parts.push(`unlock: ${reward.unlockEffect}`);
+  return parts.join(', ');
+}
+
+// ─── Category Section ────────────────────────────────────────────────────────
+
+interface CategorySectionProps {
+  category: string;
+  achievements: AchievementDef[];
+  unlocked: string[];
+  progress: Record<string, number>;
+  collapsed: boolean;
+  onToggleCollapse: () => void;
+}
+
+function CategorySection({
+  category,
+  achievements,
+  unlocked,
+  progress,
+  collapsed,
+  onToggleCollapse,
+}: CategorySectionProps) {
+  const color = ACHIEVEMENT_CATEGORY_COLORS[category] ?? '#9CA3AF';
+  const label = CATEGORY_LABELS[category] ?? category;
+  const unlockedCount = achievements.filter((a) => unlocked.includes(a.id)).length;
+
+  return (
+    <Card className="bg-gray-900/60 border-gray-700">
+      <SectionHeader
+        title={`${label} (${unlockedCount}/${achievements.length})`}
+        action={
+          <button
+            onClick={onToggleCollapse}
+            className="text-xs text-gray-400 hover:text-gray-200 transition-colors"
+          >
+            {collapsed ? 'Expand ▼' : 'Collapse ▲'}
+          </button>
+        }
+      />
+      {!collapsed && (
+        <CardContent className="space-y-3">
+          {achievements.map((achievement) => {
+            const isUnlocked = unlocked.includes(achievement.id);
+            const currentProgress = getProgressForAchievement(achievement, progress);
+            const percent = getProgressPercent(achievement, currentProgress);
+            const revealed = isAchievementRevealed(achievement, currentProgress);
+
+            if (!revealed) {
+              return (
+                <div
+                  key={achievement.id}
+                  className="p-3 rounded border border-gray-700/50 bg-gray-800/30"
+                >
+                  <div className="flex items-center gap-2">
+                    <span className="text-gray-500">???</span>
+                    <span className="text-xs text-gray-600 italic">
+                      Hidden achievement — keep progressing to reveal
+                    </span>
+                  </div>
+                  <div className="mt-2">
+                    <Progress value={percent} className="h-1.5" />
+                  </div>
+                </div>
+              );
+            }
+
+            return (
+              <div
+                key={achievement.id}
+                className={`p-3 rounded border ${
+                  isUnlocked
+                    ? 'border-green-700/50 bg-green-900/20'
+                    : 'border-gray-700/50 bg-gray-800/30'
+                }`}
+              >
+                <div className="flex items-center justify-between mb-1">
+                  <div className="flex items-center gap-2">
+                    <span className="font-medium text-sm" style={{ color }}>
+                      {achievement.name}
+                    </span>
+                    {isUnlocked && (
+                      <Badge className="bg-green-900/50 text-green-300 text-xs">
+                        ✓ Unlocked
+                      </Badge>
+                    )}
+                  </div>
+                  <span className="text-xs text-gray-500">
+                    {fmt(currentProgress)} / {fmt(achievement.requirement.value)}
+                  </span>
+                </div>
+
+                <p className="text-xs text-gray-400 mb-2">{achievement.desc}</p>
+
+                <div className="flex items-center gap-2 mb-2">
+                  <Progress value={percent} className="h-1.5 flex-1" />
+                  <span className="text-xs text-gray-500 w-10 text-right">
+                    {percent}%
+                  </span>
+                </div>
+
+                <div className="text-xs text-gray-500">
+                  <span className="text-gray-400">Reward:</span>{' '}
+                  {formatReward(achievement.reward)}
+                </div>
+              </div>
+            );
+          })}
+        </CardContent>
+      )}
+    </Card>
+  );
+}
+
+// ─── Main Component ──────────────────────────────────────────────────────────
+
+export function AchievementsTab() {
+  const achievements = useCombatStore((s) => s.achievements);
+  const [mounted, setMounted] = useState(false);
+  const [collapsedCategories, setCollapsedCategories] = useState<Record<string, boolean>>({});
+
+  useEffect(() => {
+    setMounted(true);
+  }, []);
+
+  const byCategory = useMemo(() => getAchievementsByCategory(), []);
+  const categories = useMemo(
+    () => Object.keys(byCategory).sort(),
+    [byCategory],
+  );
+
+  const totalAchievements = Object.keys(ACHIEVEMENTS).length;
+  const unlockedCount = achievements.unlocked.length;
+
+  const toggleCollapse = (category: string) => {
+    setCollapsedCategories((prev) => ({
+      ...prev,
+      [category]: !prev[category],
+    }));
+  };
+
+  if (!mounted) {
+    return (
+      <div className="flex items-center justify-center p-8 text-gray-500">
+        Loading achievements…
+      </div>
+    );
+  }
+
+  return (
+    <DebugName name="AchievementsTab">
+      <div className="space-y-4">
+        {/* Summary header */}
+        <Card className="bg-gray-900/60 border-gray-700">
+          <CardContent className="py-4">
+            <div className="flex items-center justify-between">
+              <div>
+                <h2 className="text-lg font-semibold text-gray-100">
+                  Achievements
+                </h2>
+                <p className="text-sm text-gray-400">
+                  Track your progress and unlock rewards
+                </p>
+              </div>
+              <div className="text-right">
+                <div className="text-2xl font-bold text-amber-400">
+                  {unlockedCount}
+                  <span className="text-sm text-gray-500 font-normal">
+                    /{totalAchievements}
+                  </span>
+                </div>
+                <Progress
+                  value={Math.round((unlockedCount / totalAchievements) * 100)}
+                  className="h-2 w-32 mt-1"
+                />
+              </div>
+            </div>
+          </CardContent>
+        </Card>
+
+        {/* Category sections */}
+        <ScrollArea className="h-[600px] pr-2">
+          <div className="space-y-4">
+            {categories.map((category) => (
+              <CategorySection
+                key={category}
+                category={category}
+                achievements={byCategory[category]}
+                unlocked={achievements.unlocked}
+                progress={achievements.progress}
+                collapsed={collapsedCategories[category] ?? false}
+                onToggleCollapse={() => toggleCollapse(category)}
+              />
+            ))}
+          </div>
+        </ScrollArea>
+      </div>
+    </DebugName>
+  );
+}
+
+AchievementsTab.displayName = 'AchievementsTab';

src/components/game/tabs/DebugTab/AchievementDebugSection.tsx

@@ -0,0 +1,83 @@
+'use client';
+
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Trophy, CheckCircle, RotateCcw } from 'lucide-react';
+import { useCombatStore } from '@/lib/game/stores';
+import { ACHIEVEMENTS } from '@/lib/game/data/achievements';
+
+export function AchievementDebugSection() {
+  const achievements = useCombatStore((s) => s.achievements);
+
+  const unlockedCount = achievements?.unlocked?.length || 0;
+  const totalCount = Object.keys(ACHIEVEMENTS).length;
+
+  const handleUnlockAll = () => {
+    useCombatStore.setState({
+      achievements: {
+        unlocked: Object.keys(ACHIEVEMENTS),
+        progress: Object.fromEntries(
+          Object.keys(ACHIEVEMENTS).map((id) => [id, ACHIEVEMENTS[id].requirement.value])
+        ),
+      },
+    });
+  };
+
+  const handleResetAll = () => {
+    useCombatStore.setState({
+      achievements: {
+        unlocked: [],
+        progress: {},
+      },
+    });
+  };
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-yellow-400 text-sm flex items-center gap-2">
+          <Trophy className="w-4 h-4" />
+          Achievement Debug
+        </CardTitle>
+      </CardHeader>
+      <CardContent className="space-y-3">
+        <div className="text-xs text-gray-400">
+          Unlocked: {unlockedCount} / {totalCount}
+        </div>
+
+        <div className="flex gap-2 flex-wrap">
+          <Button size="sm" variant="outline" onClick={handleUnlockAll}>
+            <CheckCircle className="w-3 h-3 mr-1" /> Unlock All
+          </Button>
+          <Button size="sm" variant="destructive" onClick={handleResetAll}>
+            <RotateCcw className="w-3 h-3 mr-1" /> Reset All
+          </Button>
+        </div>
+
+        <div className="space-y-1 max-h-48 overflow-y-auto">
+          {Object.entries(ACHIEVEMENTS).map(([id, def]) => {
+            const isUnlocked = achievements?.unlocked?.includes(id);
+            return (
+              <div
+                key={id}
+                className={`flex items-center justify-between p-2 rounded text-xs ${
+                  isUnlocked ? 'bg-green-900/20 border border-green-600/50' : 'bg-gray-800/50'
+                }`}
+              >
+                <div>
+                  <span className="font-medium">{def.name}</span>
+                  <span className="text-gray-500 ml-2">({def.category})</span>
+                </div>
+                {isUnlocked && (
+                  <CheckCircle className="w-3 h-3 text-green-400" />
+                )}
+              </div>
+            );
+          })}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
+
+AchievementDebugSection.displayName = "AchievementDebugSection";

src/components/game/tabs/DebugTab/AttunementDebugSection.tsx

@@ -0,0 +1,88 @@
+'use client';
+
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Sparkles, Unlock } from 'lucide-react';
+import { ATTUNEMENTS_DEF } from '@/lib/game/data/attunements';
+import { useAttunementStore } from '@/lib/game/stores';
+import { useManaStore } from '@/lib/game/stores';
+
+export function AttunementDebugSection() {
+  const attunements = useAttunementStore((s) => s.attunements);
+  const debugUnlockAttunement = useAttunementStore((s) => s.debugUnlockAttunement);
+  const addAttunementXP = useAttunementStore((s) => s.addAttunementXP);
+
+  const handleUnlockAttunement = (id: string) => {
+    if (debugUnlockAttunement) {
+      debugUnlockAttunement(id);
+      if (id === 'enchanter') {
+        useManaStore.getState().unlockElement('transference', 0);
+      }
+    }
+  };
+
+  const handleAddAttunementXP = (id: string, amount: number) => {
+    if (addAttunementXP) {
+      addAttunementXP(id, amount);
+    }
+  };
+
+  const handleUnlockAll = () => {
+    Object.keys(ATTUNEMENTS_DEF).forEach((id) => {
+      handleUnlockAttunement(id);
+    });
+  };
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-purple-400 text-sm flex items-center gap-2">
+          <Sparkles className="w-4 h-4" />
+          Attunements
+        </CardTitle>
+      </CardHeader>
+      <CardContent className="space-y-3">
+        <Button size="sm" variant="outline" onClick={handleUnlockAll}>
+          <Unlock className="w-3 h-3 mr-1" /> Unlock All
+        </Button>
+        {Object.entries(ATTUNEMENTS_DEF).map(([id, def]) => {
+          const isActive = attunements?.[id]?.active;
+          const level = attunements?.[id]?.level || 1;
+          const xp = attunements?.[id]?.experience || 0;
+
+          return (
+            <div key={id} className="flex items-center justify-between p-2 bg-gray-800/50 rounded">
+              <div className="flex items-center gap-2">
+                <span>{def.icon}</span>
+                <div>
+                  <div className="text-sm font-medium">{def.name}</div>
+                  {isActive && (
+                    <div className="text-xs text-gray-400">Lv.{level} • {xp} XP</div>
+                  )}
+                </div>
+              </div>
+              <div className="flex gap-2">
+                <Button
+                  size="sm"
+                  variant="outline"
+                  onClick={() => handleUnlockAttunement(id)}
+                >
+                  <Unlock className="w-3 h-3 mr-1" /> Unlock
+                </Button>
+                <Button
+                  size="sm"
+                  variant="outline"
+                  onClick={() => handleAddAttunementXP(id, 100)}
+                >
+                  +100 XP
+                </Button>
+              </div>
+            </div>
+          );
+        })}
+      </CardContent>
+    </Card>
+  );
+}
+
+AttunementDebugSection.displayName = "AttunementDebugSection";

src/components/game/tabs/DebugTab/DisciplineDebugSection.tsx

@@ -0,0 +1,135 @@
+'use client';
+
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { BookOpen, Plus, Pause, Play } from 'lucide-react';
+import { useDisciplineStore } from '@/lib/game/stores/discipline-slice';
+import { ALL_DISCIPLINES } from '@/lib/game/data/disciplines';
+
+export function DisciplineDebugSection() {
+  const disciplines = useDisciplineStore((s) => s.disciplines);
+  const activeIds = useDisciplineStore((s) => s.activeIds);
+  const concurrentLimit = useDisciplineStore((s) => s.concurrentLimit);
+  const activate = useDisciplineStore((s) => s.activate);
+  const deactivate = useDisciplineStore((s) => s.deactivate);
+
+  const handleTogglePause = (id: string) => {
+    const disc = disciplines[id];
+    if (!disc) return;
+    if (disc.paused) {
+      activate(id);
+    } else {
+      deactivate(id);
+      // Re-activate with paused false — just activate again
+      activate(id);
+    }
+  };
+
+  const handleAddXP = (id: string, amount: number) => {
+    useDisciplineStore.setState((s) => {
+      const disc = s.disciplines[id];
+      if (!disc) return s;
+      return {
+        disciplines: {
+          ...s.disciplines,
+          [id]: { ...disc, xp: disc.xp + amount },
+        },
+      };
+    });
+  };
+
+  const handleActivateAll = () => {
+    ALL_DISCIPLINES.forEach((d) => {
+      if (!activeIds.includes(d.id)) {
+        activate(d.id);
+      }
+    });
+  };
+
+  const handleDeactivateAll = () => {
+    activeIds.forEach((id) => {
+      deactivate(id);
+    });
+  };
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-indigo-400 text-sm flex items-center gap-2">
+          <BookOpen className="w-4 h-4" />
+          Disciplines
+        </CardTitle>
+      </CardHeader>
+      <CardContent className="space-y-3">
+        <div className="flex gap-2 flex-wrap mb-2">
+          <Button size="sm" variant="outline" onClick={handleActivateAll}>
+            <Play className="w-3 h-3 mr-1" /> Activate All
+          </Button>
+          <Button size="sm" variant="outline" onClick={handleDeactivateAll}>
+            <Pause className="w-3 h-3 mr-1" /> Deactivate All
+          </Button>
+        </div>
+        <div className="text-xs text-gray-400">
+          Active: {activeIds.length} / {concurrentLimit}
+        </div>
+        <div className="space-y-2 max-h-64 overflow-y-auto">
+          {ALL_DISCIPLINES.map((def) => {
+            const disc = disciplines[def.id];
+            const isActive = activeIds.includes(def.id);
+            const xp = disc?.xp || 0;
+            const isPaused = disc?.paused ?? true;
+
+            return (
+              <div
+                key={def.id}
+                className="flex items-center justify-between p-2 bg-gray-800/50 rounded"
+              >
+                <div>
+                  <div className="text-sm font-medium">{def.name}</div>
+                  <div className="text-xs text-gray-400">
+                    {isActive ? `XP: ${xp}` : 'Inactive'}
+                  </div>
+                </div>
+                <div className="flex gap-1">
+                  <Button
+                    size="sm"
+                    variant="outline"
+                    onClick={() => handleAddXP(def.id, 100)}
+                  >
+                    <Plus className="w-3 h-3 mr-1" /> +100
+                  </Button>
+                  <Button
+                    size="sm"
+                    variant="outline"
+                    onClick={() => handleAddXP(def.id, 1000)}
+                  >
+                    +1K
+                  </Button>
+                  <Button
+                    size="sm"
+                    variant={isActive ? 'default' : 'outline'}
+                    onClick={() => {
+                      if (isActive) {
+                        deactivate(def.id);
+                      } else {
+                        activate(def.id);
+                      }
+                    }}
+                  >
+                    {isActive ? (
+                      <Pause className="w-3 h-3" />
+                    ) : (
+                      <Play className="w-3 h-3" />
+                    )}
+                  </Button>
+                </div>
+              </div>
+            );
+          })}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
+
+DisciplineDebugSection.displayName = "DisciplineDebugSection";

src/components/game/tabs/DebugTab/ElementDebugSection.tsx

@@ -0,0 +1,92 @@
+'use client';
+
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Star, Lock } from 'lucide-react';
+import { useManaStore } from '@/lib/game/stores';
+import { ELEMENTS } from '@/lib/game/constants';
+
+export function ElementDebugSection() {
+  const elements = useManaStore((s) => s.elements);
+
+  const handleUnlockElement = (element: string) => {
+    useManaStore.getState().unlockElement(element, 0);
+  };
+
+  const handleAddElementalMana = (element: string, amount: number) => {
+    const elem = elements?.[element];
+    if (elem?.unlocked) {
+      useManaStore.getState().addElementMana(element, amount, elem.max);
+    }
+  };
+
+  const handleUnlockAll = () => {
+    Object.keys(elements || {}).forEach((id) => {
+      if (!elements[id]?.unlocked) {
+        handleUnlockElement(id);
+      }
+    });
+  };
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-green-400 text-sm flex items-center gap-2">
+          <Star className="w-4 h-4" />
+          Elemental Mana
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="mb-3">
+          <Button size="sm" variant="outline" onClick={handleUnlockAll}>
+            <Lock className="w-3 h-3 mr-1" /> Unlock All Elements
+          </Button>
+        </div>
+        <div className="grid grid-cols-3 sm:grid-cols-4 md:grid-cols-6 gap-2">
+          {Object.entries(elements || {}).map(([id, elem]) => {
+            const def = ELEMENTS[id];
+            return (
+              <div
+                key={id}
+                className={`p-2 rounded border text-center ${
+                  elem.unlocked ? 'border-gray-600 bg-gray-800/50' : 'border-gray-800 opacity-60'
+                }`}
+                style={{
+                  borderColor: elem.unlocked ? def?.color : undefined
+                }}
+              >
+                <div className="text-lg">{def?.sym}</div>
+                <div className="text-xs text-gray-400">{def?.name}</div>
+                <div className="text-xs text-gray-300 mt-1">
+                  {elem.current}/{elem.max}
+                </div>
+                {!elem.unlocked && (
+                  <Button
+                    size="sm"
+                    variant="outline"
+                    className="mt-2"
+                    onClick={() => handleUnlockElement(id)}
+                  >
+                    <Lock className="w-3 h-3 mr-1" /> Unlock
+                  </Button>
+                )}
+                {elem.unlocked && (
+                  <Button
+                    size="sm"
+                    variant="outline"
+                    className="mt-2"
+                    onClick={() => handleAddElementalMana(id, 10)}
+                  >
+                    +10
+                  </Button>
+                )}
+              </div>
+            );
+          })}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
+
+ElementDebugSection.displayName = "ElementDebugSection";

src/components/game/tabs/DebugTab/GameStateDebugSection.tsx

@@ -0,0 +1,235 @@
+'use client';
+
+import { useState } from 'react';
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Separator } from '@/components/ui/separator';
+import { Switch } from '@/components/ui/switch';
+import { Label } from '@/components/ui/label';
+import {
+  RotateCcw, AlertTriangle, Zap, Clock, Eye,
+} from 'lucide-react';
+import { useDebug } from '@/components/game/debug/debug-context';
+import { useGameStore, useManaStore, useUIStore, useCombatStore } from '@/lib/game/stores';
+import { computeMaxMana } from '@/lib/game/stores';
+
+export function GameStateDebugSection() {
+  const [confirmReset, setConfirmReset] = useState(false);
+  const { showComponentNames, toggleComponentNames } = useDebug();
+
+  const rawMana = useManaStore((s) => s.rawMana);
+  const day = useGameStore((s) => s.day);
+  const hour = useGameStore((s) => s.hour);
+  const paused = useUIStore((s) => s.paused);
+  const togglePause = useUIStore((s) => s.togglePause);
+
+  const resetGame = useGameStore((s) => s.resetGame);
+  const gatherMana = useGameStore((s) => s.gatherMana);
+  const debugSetFloor = useCombatStore((s) => s.debugSetFloor);
+  const resetFloorHP = useCombatStore((s) => s.resetFloorHP);
+  const elements = useManaStore((s) => s.elements);
+  const unlockElement = useManaStore((s) => s.unlockElement);
+
+  const handleReset = () => {
+    if (confirmReset) {
+      resetGame();
+      setConfirmReset(false);
+    } else {
+      setConfirmReset(true);
+      setTimeout(() => setConfirmReset(false), 3000);
+    }
+  };
+
+  const handleAddMana = (amount: number) => {
+    for (let i = 0; i < amount; i++) {
+      gatherMana();
+    }
+  };
+
+  const getMaxMana = () => {
+    return computeMaxMana(
+      { skills: {}, prestigeUpgrades: {}, skillUpgrades: {}, skillTiers: {} }
+    );
+  };
+
+  return (
+    <div className="space-y-4">
+      {/* Display Options */}
+      <Card className="bg-gray-900/80 border-gray-700">
+        <CardHeader className="pb-2">
+          <CardTitle className="text-cyan-400 text-sm flex items-center gap-2">
+            <Eye className="w-4 h-4" />
+            Display Options
+          </CardTitle>
+        </CardHeader>
+        <CardContent>
+          <div className="flex items-center justify-between">
+            <div className="space-y-0.5">
+              <Label htmlFor="show-component-names" className="text-sm">Show Component Names</Label>
+              <p className="text-xs text-gray-400">
+                Display component names at the top of each component for debugging
+              </p>
+            </div>
+            <Switch
+              id="show-component-names"
+              checked={showComponentNames}
+              onCheckedChange={toggleComponentNames}
+            />
+          </div>
+        </CardContent>
+      </Card>
+
+      <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+        {/* Game Reset */}
+        <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">
+              <RotateCcw className="w-4 h-4" />
+              Game Reset
+            </CardTitle>
+          </CardHeader>
+          <CardContent className="space-y-3">
+            <p className="text-xs text-gray-400">
+              Reset all game progress and start fresh. This cannot be undone.
+            </p>
+            <Button
+              className={`w-full ${confirmReset ? 'bg-red-600 hover:bg-red-700' : 'bg-gray-700 hover:bg-gray-600'}`}
+              onClick={handleReset}
+            >
+              {confirmReset ? (
+                <>
+                  <AlertTriangle className="w-4 h-4 mr-2" />
+                  Click Again to Confirm Reset
+                </>
+              ) : (
+                <>
+                  <RotateCcw className="w-4 h-4 mr-2" />
+                  Reset Game
+                </>
+              )}
+            </Button>
+          </CardContent>
+        </Card>
+
+        {/* Mana Debug */}
+        <Card className="bg-gray-900/80 border-gray-700">
+          <CardHeader className="pb-2">
+            <CardTitle className="text-blue-400 text-sm flex items-center gap-2">
+              <Zap className="w-4 h-4" />
+              Mana Debug
+            </CardTitle>
+          </CardHeader>
+          <CardContent className="space-y-3">
+            <div className="text-xs text-gray-400 mb-2">
+              Current: {rawMana} / {getMaxMana() || '?'}
+            </div>
+            <div className="flex gap-2 flex-wrap">
+              <Button size="sm" variant="outline" onClick={() => handleAddMana(10)}>
+                <Zap className="w-3 h-3 mr-1" /> +10
+              </Button>
+              <Button size="sm" variant="outline" onClick={() => handleAddMana(100)}>
+                <Zap className="w-3 h-3 mr-1" /> +100
+              </Button>
+              <Button size="sm" variant="outline" onClick={() => handleAddMana(1000)}>
+                <Zap className="w-3 h-3 mr-1" /> +1K
+              </Button>
+              <Button size="sm" variant="outline" onClick={() => handleAddMana(10000)}>
+                <Zap className="w-3 h-3 mr-1" /> +10K
+              </Button>
+            </div>
+            <Separator className="bg-gray-700" />
+            <div className="text-xs text-gray-400 mb-2">Fill to max:</div>
+            <Button
+              size="sm"
+              className="w-full bg-blue-600 hover:bg-blue-700"
+              onClick={() => {
+                const max = getMaxMana() || 100;
+                useManaStore.setState((s) => ({ rawMana: Math.max(s.rawMana, max) }));
+              }}
+            >
+              Fill Mana
+            </Button>
+          </CardContent>
+        </Card>
+
+        {/* Time Control */}
+        <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">
+              <Clock className="w-4 h-4" />
+              Time Control
+            </CardTitle>
+          </CardHeader>
+          <CardContent className="space-y-3">
+            <div className="text-xs text-gray-400">
+              Current: Day {day}, Hour {hour}
+            </div>
+            <div className="flex gap-2 flex-wrap">
+              <Button size="sm" variant="outline" onClick={() => useGameStore.setState({ day: 1, hour: 0 })}>
+                Day 1
+              </Button>
+              <Button size="sm" variant="outline" onClick={() => useGameStore.setState({ day: 10, hour: 0 })}>
+                Day 10
+              </Button>
+              <Button size="sm" variant="outline" onClick={() => useGameStore.setState({ day: 20, hour: 0 })}>
+                Day 20
+              </Button>
+              <Button size="sm" variant="outline" onClick={() => useGameStore.setState({ day: 30, hour: 0 })}>
+                Day 30
+              </Button>
+            </div>
+            <Separator className="bg-gray-700" />
+            <div className="flex gap-2">
+              <Button size="sm" variant="outline" onClick={togglePause}>
+                {paused ? '▶ Resume' : '⏸ Pause'}
+              </Button>
+            </div>
+          </CardContent>
+        </Card>
+
+        {/* Quick Actions */}
+        <Card className="bg-gray-900/80 border-gray-700">
+          <CardHeader className="pb-2">
+            <CardTitle className="text-cyan-400 text-sm flex items-center gap-2">
+              <Zap className="w-4 h-4" />
+              Quick Actions
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <div className="flex gap-2 flex-wrap">
+              <Button
+                size="sm"
+                variant="outline"
+                onClick={() => {
+                  ['fire', 'water', 'air', 'earth', 'light', 'dark', 'death'].forEach(e => {
+                    if (!elements[e]?.unlocked) {
+                      unlockElement(e, 0);
+                    }
+                  });
+                }}
+              >
+                Unlock All Base Elements
+              </Button>
+              <Button
+                size="sm"
+                variant="outline"
+                onClick={() => debugSetFloor?.(100)}
+              >
+                Skip to Floor 100
+              </Button>
+              <Button
+                size="sm"
+                variant="outline"
+                onClick={() => resetFloorHP?.()}
+              >
+                Reset Floor HP
+              </Button>
+            </div>
+          </CardContent>
+        </Card>
+      </div>
+    </div>
+  );
+}
+
+GameStateDebugSection.displayName = "GameStateDebugSection";

src/components/game/tabs/DebugTab/GolemDebugSection.tsx

@@ -0,0 +1,81 @@
+'use client';
+
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Bug, Wand2 } from 'lucide-react';
+import { useCombatStore } from '@/lib/game/stores';
+import { GOLEMS_DEF } from '@/lib/game/data/golems';
+
+export function GolemDebugSection() {
+  const golemancy = useCombatStore((s) => s.golemancy);
+  const setEnabledGolems = useCombatStore((s) => s.setEnabledGolems);
+
+  const enabledGolems = golemancy?.enabledGolems || [];
+
+  const handleEnableAll = () => {
+    setEnabledGolems(Object.keys(GOLEMS_DEF));
+  };
+
+  const handleDisableAll = () => {
+    setEnabledGolems([]);
+  };
+
+  const handleToggleGolem = (golemId: string) => {
+    if (enabledGolems.includes(golemId)) {
+      setEnabledGolems(enabledGolems.filter(id => id !== golemId));
+    } else {
+      setEnabledGolems([...enabledGolems, golemId]);
+    }
+  };
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-orange-400 text-sm flex items-center gap-2">
+          <Bug className="w-4 h-4" />
+          Golem Debug
+        </CardTitle>
+      </CardHeader>
+      <CardContent className="space-y-3">
+        <div className="flex gap-2 flex-wrap">
+          <Button size="sm" variant="outline" onClick={handleEnableAll}>
+            <Wand2 className="w-3 h-3 mr-1" /> Enable All Golems
+          </Button>
+          <Button size="sm" variant="outline" onClick={handleDisableAll}>
+            Disable All Golems
+          </Button>
+        </div>
+        <div className="text-xs text-gray-400">
+          Enabled: {enabledGolems.length} / {Object.keys(GOLEMS_DEF).length}
+        </div>
+        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-2 max-h-48 overflow-y-auto">
+          {Object.entries(GOLEMS_DEF).map(([id, def]) => {
+            const isEnabled = enabledGolems.includes(id);
+            return (
+              <div
+                key={id}
+                className={`p-2 rounded border flex items-center justify-between ${
+                  isEnabled ? 'border-orange-600/50 bg-orange-900/20' : 'border-gray-700'
+                }`}
+              >
+                <div>
+                  <div className="text-sm font-medium">{def.name}</div>
+                  <div className="text-xs text-gray-400">{def.element}</div>
+                </div>
+                <Button
+                  size="sm"
+                  variant={isEnabled ? 'default' : 'outline'}
+                  onClick={() => handleToggleGolem(id)}
+                >
+                  {isEnabled ? 'On' : 'Off'}
+                </Button>
+              </div>
+            );
+          })}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
+
+GolemDebugSection.displayName = "GolemDebugSection";

src/components/game/tabs/DebugTab/PactDebugSection.tsx

@@ -0,0 +1,161 @@
+'use client';
+
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Button } from '@/components/ui/button';
+import { Bug } from 'lucide-react';
+import { usePrestigeStore, useManaStore, useUIStore, useGameStore } from '@/lib/game/stores';
+import { GUARDIANS, ELEMENTS } from '@/lib/game/constants';
+
+export function PactDebugSection() {
+  const signedPacts = usePrestigeStore((s) => s.signedPacts);
+  const signedPactDetails = usePrestigeStore((s) => s.signedPactDetails);
+  const elements = useManaStore((s) => s.elements);
+  const prestigeUpgrades = usePrestigeStore((s) => s.prestigeUpgrades);
+
+  const addSignedPact = usePrestigeStore((s) => s.addSignedPact);
+  const removePact = usePrestigeStore((s) => s.removePact);
+  const debugSetSignedPacts = usePrestigeStore((s) => s.debugSetSignedPacts);
+  const debugSetPactDetails = usePrestigeStore((s) => s.debugSetPactDetails);
+  const unlockElement = useManaStore((s) => s.unlockElement);
+
+  const addLog = useUIStore((s) => s.addLog);
+
+  const guardianFloors = Object.keys(GUARDIANS || {}).map(Number).sort((a, b) => a - b);
+
+  const forcePact = (floor: number) => {
+    const guardian = GUARDIANS[floor];
+    if (!guardian) return;
+
+    if (signedPacts.includes(floor)) {
+      addLog(`⚠️ Already signed pact with ${guardian.name}!`);
+      return;
+    }
+
+    const maxPacts = 1 + (prestigeUpgrades?.pactCapacity || 0);
+    if (signedPacts.length >= maxPacts) {
+      addLog(`⚠️ Cannot sign more pacts! Maximum: ${maxPacts}.`);
+      return;
+    }
+
+    addSignedPact(floor);
+
+    const newSignedPactDetails = {
+      ...signedPactDetails,
+      [floor]: {
+        floor,
+        guardianId: guardian.element,
+        signedAt: { day: useGameStore.getState().day, hour: useGameStore.getState().hour },
+        skillLevels: {} as Record<string, number>,
+      },
+    };
+    debugSetPactDetails(newSignedPactDetails);
+
+    addLog(`📜 DEBUG: Pact with ${guardian.name} force-signed!`);
+  };
+
+  const removePactHandler = (floor: number) => {
+    const guardian = GUARDIANS[floor];
+
+    removePact(floor);
+
+    const newSignedPactDetails = { ...signedPactDetails };
+    delete newSignedPactDetails[floor];
+    debugSetPactDetails(newSignedPactDetails);
+
+    addLog(`📜 DEBUG: Removed pact with ${guardian?.name || 'Unknown'}!`);
+  };
+
+  const signAllPacts = () => {
+    guardianFloors.forEach((floor) => {
+      if (!signedPacts.includes(floor)) {
+        forcePact(floor);
+      }
+    });
+  };
+
+  const clearAllPacts = () => {
+    addLog(`📜 DEBUG: Cleared all pacts!`);
+    debugSetSignedPacts([]);
+    debugSetPactDetails({});
+  };
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-orange-400 text-sm flex items-center gap-2">
+          <Bug className="w-4 h-4" />
+          Pact Debug
+        </CardTitle>
+      </CardHeader>
+      <CardContent>
+        <div className="space-y-3">
+          <div className="flex gap-2 flex-wrap">
+            <Button size="sm" variant="outline" onClick={signAllPacts}>
+              Sign All Pacts
+            </Button>
+            <Button size="sm" variant="destructive" onClick={clearAllPacts}>
+              Clear All Pacts ({signedPacts.length})
+            </Button>
+          </div>
+
+          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-2">
+            {guardianFloors.map((floor) => {
+              const guardian = GUARDIANS[floor];
+              const isSigned = signedPacts.includes(floor);
+
+              return (
+                <div
+                  key={floor}
+                  className={`p-2 rounded border flex items-center justify-between ${
+                    isSigned ? 'border-green-600/50 bg-green-900/20' : 'border-gray-700'
+                  }`}
+                  style={{ borderColor: isSigned ? undefined : guardian.color, borderWidth: '1px' }}
+                >
+                  <div>
+                    <div className="text-sm font-semibold" style={{ color: guardian.color }}>
+                      {guardian.name}
+                    </div>
+                    <div className="text-xs text-gray-400">
+                      Floor {floor} | {guardian.pact}x multiplier
+                    </div>
+                    <div className="text-xs text-gray-500">
+                      Element: {ELEMENTS[guardian.element]?.name || guardian.element}
+                    </div>
+                  </div>
+                  <div className="flex gap-1">
+                    {isSigned ? (
+                      <Button
+                        size="sm"
+                        variant="destructive"
+                        onClick={() => removePactHandler(floor)}
+                        className="text-xs"
+                      >
+                        Remove
+                      </Button>
+                    ) : (
+                      <Button
+                        size="sm"
+                        variant="default"
+                        onClick={() => forcePact(floor)}
+                        className="text-xs bg-amber-600 hover:bg-amber-700"
+                      >
+                        Force Sign
+                      </Button>
+                    )}
+                  </div>
+                </div>
+              );
+            })}
+          </div>
+
+          <div className="text-xs text-gray-400 pt-2 border-t border-gray-700">
+            Signed Pacts: {signedPacts.length} |
+            Max Pacts: {1 + (prestigeUpgrades?.pactCapacity || 0)}
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
+
+PactDebugSection.displayName = "PactDebugSection";

src/components/game/tabs/DebugTab/SpireDebugSection.tsx

@@ -0,0 +1,106 @@
+'use client';
+
+import { useState } from 'react';
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Input } from '@/components/ui/input';
+import { Castle, ArrowUp, Eye } from 'lucide-react';
+import { useCombatStore } from '@/lib/game/stores';
+
+export function SpireDebugSection() {
+  const [floorInput, setFloorInput] = useState('50');
+
+  const currentFloor = useCombatStore((s) => s.currentFloor);
+  const maxFloorReached = useCombatStore((s) => s.maxFloorReached);
+  const spireMode = useCombatStore((s) => s.spireMode);
+  const debugSetFloor = useCombatStore((s) => s.debugSetFloor);
+  const resetFloorHP = useCombatStore((s) => s.resetFloorHP);
+  const enterSpireMode = useCombatStore((s) => s.enterSpireMode);
+  const exitSpireMode = useCombatStore((s) => s.exitSpireMode);
+  const setMaxFloorReached = useCombatStore((s) => s.setMaxFloorReached);
+
+  const handleJumpToFloor = () => {
+    const floor = parseInt(floorInput, 10);
+    if (isNaN(floor) || floor < 1 || floor > 100) return;
+    debugSetFloor(floor);
+    setMaxFloorReached(floor);
+  };
+
+  const handleClearFloor = () => {
+    resetFloorHP();
+  };
+
+  const handleToggleSpireMode = () => {
+    if (spireMode) {
+      exitSpireMode();
+    } else {
+      enterSpireMode();
+    }
+  };
+
+  return (
+    <Card className="bg-gray-900/80 border-gray-700">
+      <CardHeader className="pb-2">
+        <CardTitle className="text-teal-400 text-sm flex items-center gap-2">
+          <Castle className="w-4 h-4" />
+          Spire Debug
+        </CardTitle>
+      </CardHeader>
+      <CardContent className="space-y-3">
+        <div className="text-xs text-gray-400">
+          Current Floor: {currentFloor} | Max Reached: {maxFloorReached} | Spire Mode: {spireMode ? 'ON' : 'OFF'}
+        </div>
+
+        <div className="flex gap-2 items-end">
+          <div className="flex-1">
+            <label className="text-xs text-gray-400 mb-1 block">Floor (1-100)</label>
+            <Input
+              type="number"
+              min={1}
+              max={100}
+              value={floorInput}
+              onChange={(e) => setFloorInput(e.target.value)}
+              className="h-8"
+            />
+          </div>
+          <Button size="sm" variant="outline" onClick={handleJumpToFloor}>
+            <ArrowUp className="w-3 h-3 mr-1" /> Jump
+          </Button>
+        </div>
+
+        <div className="flex gap-2 flex-wrap">
+          <Button size="sm" variant="outline" onClick={handleClearFloor}>
+            Reset Floor HP
+          </Button>
+          <Button
+            size="sm"
+            variant={spireMode ? 'default' : 'outline'}
+            onClick={handleToggleSpireMode}
+          >
+            <Eye className="w-3 h-3 mr-1" />
+            {spireMode ? 'Exit Spire Mode' : 'Enter Spire Mode'}
+          </Button>
+        </div>
+
+        <div className="flex gap-2 flex-wrap">
+          {[10, 25, 50, 75, 100].map((f) => (
+            <Button
+              key={f}
+              size="sm"
+              variant="outline"
+              onClick={() => {
+                setFloorInput(String(f));
+                debugSetFloor(f);
+                setMaxFloorReached(f);
+              }}
+            >
+              Floor {f}
+            </Button>
+          ))}
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
+
+SpireDebugSection.displayName = "SpireDebugSection";

src/components/game/tabs/index.ts

@@ -4,3 +4,4 @@
 export { DisciplinesTab } from './DisciplinesTab';
 export { SpellsTab } from './SpellsTab';
 export { StatsTab } from './StatsTab';
+export { AchievementsTab } from './AchievementsTab';

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

@@ -0,0 +1,129 @@
+import { describe, it, expect } from 'vitest';
+import {
+  ACHIEVEMENTS,
+  ACHIEVEMENT_CATEGORY_COLORS,
+  getAchievementsByCategory,
+  isAchievementRevealed,
+} from '../data/achievements';
+
+describe('Achievement Definitions', () => {
+  it('should have 24 achievements defined', () => {
+    expect(Object.keys(ACHIEVEMENTS).length).toBe(24);
+  });
+
+  it('should have achievements across 5 categories', () => {
+    const byCategory = getAchievementsByCategory();
+    const categories = Object.keys(byCategory).sort();
+    expect(categories).toEqual(['combat', 'crafting', 'magic', 'progression', 'special']);
+  });
+
+  it('should have valid structure for every achievement', () => {
+    Object.values(ACHIEVEMENTS).forEach((a) => {
+      expect(a.id).toBeTruthy();
+      expect(a.name).toBeTruthy();
+      expect(a.desc).toBeTruthy();
+      expect(a.category).toBeTruthy();
+      expect(a.requirement.type).toBeTruthy();
+      expect(a.requirement.value).toBeGreaterThan(0);
+      // At least one reward key must be present
+      const rewardKeys = Object.keys(a.reward);
+      expect(rewardKeys.length).toBeGreaterThan(0);
+    });
+  });
+
+  it('should have category colors for all used categories', () => {
+    const byCategory = getAchievementsByCategory();
+    Object.keys(byCategory).forEach((cat) => {
+      expect(ACHIEVEMENT_CATEGORY_COLORS[cat]).toBeDefined();
+    });
+  });
+
+  it('should have hidden flag only on special category achievements', () => {
+    Object.values(ACHIEVEMENTS).forEach((a) => {
+      if (a.hidden) {
+        expect(a.category).toBe('special');
+      }
+    });
+  });
+
+  it('should have exactly 2 hidden achievements', () => {
+    const hidden = Object.values(ACHIEVEMENTS).filter((a) => a.hidden);
+    expect(hidden.length).toBe(2); // speedRunner and perfectionist
+  });
+});
+
+describe('getAchievementsByCategory', () => {
+  it('should group achievements correctly', () => {
+    const byCategory = getAchievementsByCategory();
+    // Combat has 6 floor + 3 damage = 9
+    expect(byCategory['combat'].length).toBe(9);
+    // Progression has 3 pacts
+    expect(byCategory['progression'].length).toBe(3);
+    // Magic has 3 spells + 3 mana = 6
+    expect(byCategory['magic'].length).toBe(6);
+    // Crafting has 3
+    expect(byCategory['crafting'].length).toBe(3);
+    // Special has 3 (2 hidden + 1 survivor)
+    expect(byCategory['special'].length).toBe(3);
+  });
+
+  it('should return a new object each call (no mutation)', () => {
+    const result1 = getAchievementsByCategory();
+    const result2 = getAchievementsByCategory();
+    expect(result1).not.toBe(result2);
+    expect(result1).toEqual(result2);
+  });
+});
+
+describe('isAchievementRevealed', () => {
+  it('should always reveal non-hidden achievements', () => {
+    const nonHidden = Object.values(ACHIEVEMENTS).find((a) => !a.hidden);
+    expect(nonHidden).toBeDefined();
+    expect(isAchievementRevealed(nonHidden!, 0)).toBe(true);
+    expect(isAchievementRevealed(nonHidden!, 999)).toBe(true);
+  });
+
+  it('should hide hidden achievements below 50% progress', () => {
+    const hidden = Object.values(ACHIEVEMENTS).find((a) => a.hidden);
+    expect(hidden).toBeDefined();
+    // At 0% progress
+    expect(isAchievementRevealed(hidden!, 0)).toBe(false);
+    // At 25% progress
+    expect(isAchievementRevealed(hidden!, hidden!.requirement.value * 0.25)).toBe(false);
+    // At exactly 49% progress
+    expect(isAchievementRevealed(hidden!, hidden!.requirement.value * 0.49)).toBe(false);
+  });
+
+  it('should reveal hidden achievements at 50% progress', () => {
+    const hidden = Object.values(ACHIEVEMENTS).find((a) => a.hidden);
+    expect(hidden).toBeDefined();
+    // At exactly 50%
+    expect(isAchievementRevealed(hidden!, hidden!.requirement.value * 0.5)).toBe(true);
+    // At 75%
+    expect(isAchievementRevealed(hidden!, hidden!.requirement.value * 0.75)).toBe(true);
+    // At 100%
+    expect(isAchievementRevealed(hidden!, hidden!.requirement.value)).toBe(true);
+  });
+});
+
+describe('Achievement Rewards', () => {
+  it('should have insight rewards on all achievements', () => {
+    Object.values(ACHIEVEMENTS).forEach((a) => {
+      expect(a.reward.insight).toBeDefined();
+      expect(a.reward.insight).toBeGreaterThan(0);
+    });
+  });
+
+  it('should scale rewards with difficulty', () => {
+    const firstBlood = ACHIEVEMENTS['firstBlood'];
+    const apexReached = ACHIEVEMENTS['apexReached'];
+    expect(apexReached.reward.insight!).toBeGreaterThan(firstBlood.reward.insight!);
+  });
+
+  it('should have title rewards on top-tier achievements', () => {
+    const topTiers = ['apexReached', 'spireMaster', 'tenThousandDamage', 'spellStorm', 'manaOcean', 'pactMaster', 'legendaryEnchanter'];
+    topTiers.forEach((id) => {
+      expect(ACHIEVEMENTS[id].reward.title).toBeDefined();
+    });
+  });
+});