:root{--bg:#0f172a;--surface:#1e293b;--surface-glass:rgba(30,41,59,0.7);--border:rgba(255,255,255,0.1);--text-main:#f1f5f9;--text-muted:#94a3b8;--primary:#38bdf8;--primary-dim:#0ea5e9;--accent:#f472b6;--success:#4ade80;--warning:#fbbf24;--danger:#f87171;--radius-lg:24px;--radius-md:16px;--radius-sm:12px;--shadow-card:0 10px 30px -10px rgba(0,0,0,0.5);--shadow-glow:0 0 20px rgba(56,189,248,0.3)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body,html{margin:0;padding:0;width:100%;height:100%;background-color:var(--bg);color:var(--text-main);font-family:Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden}button{font-family:inherit;user-select:none}#app-container{display:flex;width:100%;height:100%;background:radial-gradient(circle at top right,#1e293b 0,#0f172a 60%)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:rgba(0,0,0,.1)}::-webkit-scrollbar-thumb{background:rgba(255,255,255,.2);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.3)}#sidebar{width:260px;height:100%;background:var(--surface-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-right:1px solid var(--border);padding:30px 20px;display:flex;flex-direction:column;gap:16px;transition:transform .3s cubic-bezier(.4,0,.2,1);z-index:100}#sidebar-logo{width:100px;height:auto;margin:0 auto 30px;display:block;cursor:pointer;transition:transform .2s}#sidebar-logo:hover{transform:scale(1.05) rotate(-3deg)}#sidebar .nav-btn{width:100%;padding:16px 20px;font-size:18px;font-weight:600;color:var(--text-muted);background:transparent;border:1px solid transparent;border-radius:var(--radius-md);cursor:pointer;text-align:left;transition:all .2s;display:flex;align-items:center;gap:12px}#sidebar .nav-btn:hover{background:rgba(255,255,255,.05);color:var(--text-main);transform:translateX(4px)}#sidebar .nav-btn.active{background:linear-gradient(135deg,var(--primary),var(--primary-dim));color:#fff;box-shadow:var(--shadow-glow);border-color:transparent}#main-content{flex-grow:1;height:100%;position:relative;overflow:hidden}.scene{width:100%;height:100%;padding:20px;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;align-items:center}#burger-btn,#overlay{display:none}@media (max-width:850px){#sidebar{position:fixed;left:0;top:0;transform:translateX(-100%);box-shadow:20px 0 50px rgba(0,0,0,.5)}#sidebar.open{transform:translateX(0)}#burger-btn{display:flex;align-items:center;justify-content:center;position:fixed;top:16px;left:16px;z-index:1001;width:44px;height:44px;background:var(--surface-glass);backdrop-filter:blur(8px);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-main);font-size:24px;cursor:pointer;box-shadow:0 4px 10px rgba(0,0,0,.2)}#overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);z-index:99}#overlay.active{display:block}.scene{padding-top:80px}}#home-scene{justify-content:center;padding-top:60px;min-height:100%}@media (max-width:850px){#home-scene{padding-top:40px;justify-content:flex-start}}.home-title{font-size:clamp(28px,6vw,42px);color:var(--text-main);margin:10px 0 30px;font-weight:800;text-align:center;flex-shrink:0}.hero-animation{width:100%;max-width:380px;height:30vh;max-height:280px;min-height:180px;margin:0 auto;animation:floatBook 6s ease-in-out infinite;display:flex;align-items:center;justify-content:center;flex-shrink:0}.magic-book-svg{width:100%;height:100%;overflow:visible}.float-icon{transform-origin:center;opacity:0}.star-1{animation:popOut 4s ease-out .5s infinite}.circle-1{animation:popOut 4s ease-out 1.5s infinite}.rect-1{animation:popOut 4s ease-out 2.5s infinite}.letter-a{animation:floatUp 5s linear 0s infinite}.letter-b{animation:floatUp 5s linear 2s infinite}@keyframes floatBook{0%,to{transform:translateY(0)}50%{transform:translateY(-15px)}}@keyframes popOut{0%{transform:scale(0) translate(0);opacity:0}20%{transform:scale(1) translateY(-20px);opacity:1}80%{opacity:1}to{transform:scale(.5) translateY(-80px);opacity:0}}@keyframes floatUp{0%{transform:translateY(0) rotate(0deg);opacity:0}20%{opacity:1}80%{opacity:.5}to{transform:translateY(-100px) rotate(20deg);opacity:0}}#home-mobile-nav{width:100%;max-width:320px;display:flex;flex-direction:column;gap:12px;padding-bottom:20px}#home-mobile-nav .nav-btn{width:100%;padding:16px;font-size:18px;font-weight:700;color:white;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);display:flex;justify-content:center;gap:10px;transition:transform .1s}#home-mobile-nav .nav-btn:active{transform:scale(.96)}.quiz-header,.sb-header,.wl-header{width:100%;max-width:800px;display:flex;align-items:center;justify-content:center;position:relative;margin-bottom:10px;flex-shrink:0;min-height:48px}.quiz-header h3,.sb-header h3,.wl-header h3{font-size:18px;margin:0;background:rgba(255,255,255,.1);padding:8px 24px;border-radius:50px;border:1px solid var(--border);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:80%}#wl-back-btn,.sb-mini-btn{position:absolute;left:0;width:40px;height:40px;background:var(--surface);border:1px solid var(--border);border-radius:50%;color:var(--text-main);display:flex;align-items:center;justify-content:center;font-size:20px;cursor:pointer;z-index:10}.sb-mini-btn{left:auto;right:0}.wl-view{width:100%;height:100%;flex-grow:1;display:flex;flex-direction:column;align-items:center}#wl-stufen-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;width:100%;max-width:900px;padding-bottom:40px}.stufe-btn{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;display:flex;flex-direction:column;align-items:center;text-align:center;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-card)}.stufe-btn:hover{transform:translateY(-6px);border-color:var(--primary)}.stufe-title{font-size:22px;font-weight:700;margin-bottom:8px;color:var(--text-main)}.stufe-count{font-size:14px;color:var(--primary);font-weight:600;background:rgba(56,189,248,.1);padding:4px 12px;border-radius:20px}#wl-cards-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:20px;width:100%;max-width:1000px;padding-bottom:40px}.word-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:12px;cursor:pointer;transition:transform .2s}.word-card:active{transform:scale(.95)}.word-card img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:var(--radius-sm);background:#000}.word-card-text{margin-top:12px;font-size:18px;font-weight:600;text-align:center}.wl-view.detail-mode{justify-content:flex-end;padding-bottom:0;gap:8px;min-height:0}#wl-card{flex-grow:1;min-height:0;width:100%;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:10px;display:flex;justify-content:center;align-items:center;margin-bottom:0}#wl-image{max-width:100%;max-height:100%;border-radius:var(--radius-md);object-fit:contain}#wl-syllable-display{height:36px;font-size:26px;font-weight:700;letter-spacing:2px;margin-bottom:4px;flex-shrink:0}#wl-syllable-display span:nth-child(odd){color:var(--primary)}#wl-syllable-display span:nth-child(2n){color:var(--accent)}#wl-slots-container{gap:12px;margin-bottom:8px;flex-shrink:0}#wl-slots-container,.slot{display:flex;justify-content:center}.slot{min-width:60px;height:50px;padding:0 10px;border:2px dashed var(--text-muted);border-radius:var(--radius-md);align-items:center;font-size:20px;font-weight:700;background:rgba(0,0,0,.2)}.slot.next{border-color:var(--accent);background:rgba(244,114,182,.1);animation:pulse 2s infinite}#wl-bank-container{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;width:100%;margin-bottom:8px;flex-shrink:0}.syllable-btn{height:48px;min-width:60px;padding:0 15px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-main);font-size:18px;font-weight:600;cursor:pointer;box-shadow:0 4px 0 rgba(0,0,0,.2);transition:transform .1s}.syllable-btn:active{transform:translateY(4px);box-shadow:none}#wl-controls{width:100%;display:flex;gap:12px;flex-shrink:0;margin-bottom:5px}#wl-controls button{flex:1;height:48px;border:none;border-radius:var(--radius-md);font-size:16px;font-weight:700;cursor:pointer;color:white;display:flex;align-items:center;justify-content:center;gap:8px}#wl-speak-btn{background:var(--warning);color:#000!important}#wl-next-btn{background:var(--success)}@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(244,114,182,.4)}70%{box-shadow:0 0 0 10px rgba(244,114,182,0)}to{box-shadow:0 0 0 0 rgba(244,114,182,0)}}#quiz-scene{max-width:800px;margin:0 auto;height:100%;display:flex;flex-direction:column}.quiz-container{flex:1;display:flex;flex-direction:column;min-height:0;width:100%}.quiz-options-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:16px;width:100%;flex-grow:1;min-height:0;margin-bottom:20px}.quiz-option-btn{background:var(--surface);border:4px solid var(--surface);border-radius:var(--radius-lg);padding:0;overflow:hidden;position:relative;transition:transform .2s;height:100%;width:100%}.quiz-option-btn img{width:100%;height:100%;object-fit:contain;background:#000}.quiz-option-btn.correct{border-color:var(--success)}.quiz-option-btn.incorrect{border-color:var(--danger);opacity:.5}.quiz-question{font-size:clamp(24px,4vw,48px);font-weight:800;text-align:center;margin-bottom:10px;flex-shrink:0;color:var(--text-main)}.quiz-footer{width:100%;display:flex;justify-content:space-between;align-items:center;flex-shrink:0;padding-top:10px}.quiz-progress-bar{flex-grow:1;margin:0 20px;height:12px;background:rgba(255,255,255,.1);border-radius:6px;position:relative}.quiz-progress-bar .fill{height:100%;background:var(--warning);border-radius:6px;transition:width .3s}.quiz-progress-bar .mouse{position:absolute;top:-18px;transition:left .3s;font-size:24px}.quiz-progress-bar .cheese{position:absolute;right:0;top:-14px;font-size:20px}#soundboard-scene{align-items:center;padding-bottom:10px}#soundboard-scene,.soundboard-container{height:100%;display:flex;flex-direction:column}.soundboard-container{width:100%;max-width:500px;gap:10px}.sb-formula-area{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:10px;gap:16px;flex-shrink:0}.sb-formula-area,.sb-slot{display:flex;align-items:center;justify-content:center}.sb-slot{width:60px;height:60px;border-radius:var(--radius-md);background:rgba(0,0,0,.3);border:2px dashed var(--border);font-size:24px;font-weight:700;color:var(--text-main);transition:all .2s}.sb-slot.active{border-style:solid;border-color:var(--primary);box-shadow:0 0 15px rgba(56,189,248,.2);transform:scale(1.05);background:rgba(56,189,248,.1)}.sb-slot.filled{background:var(--primary-dim);border-color:transparent;border-style:solid}.sb-actions{display:flex;flex-direction:column;gap:8px}.sb-action-btn{width:40px;height:40px;border-radius:12px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px}.sb-action-btn.play{background:var(--success);color:#fff}.sb-action-btn.play:disabled{background:var(--surface);color:var(--text-muted);opacity:.5}.sb-action-btn.clear{background:var(--surface);color:var(--danger);border:1px solid var(--danger)}.sb-keyboard{flex:1;min-height:0;display:flex;flex-direction:column;justify-content:space-evenly;gap:5px;padding-bottom:10px;overflow-y:auto}.sb-controls-row{flex-shrink:0;margin-bottom:5px;display:flex;justify-content:space-between;align-items:center}.sb-label{color:var(--text-muted);font-size:12px;font-weight:700;letter-spacing:1px}.sb-vowels-row{flex-shrink:0;margin-bottom:10px}.sb-consonants-grid,.sb-vowels-row{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.sb-consonants-grid{flex-grow:1;grid-auto-rows:1fr}.sb-key{width:100%;height:100%;min-height:45px;border-radius:10px;border:none;font-size:20px;font-weight:700;box-shadow:0 4px 0 rgba(0,0,0,.2);cursor:pointer;transition:transform .1s;display:flex;align-items:center;justify-content:center}.sb-key:active{transform:translateY(4px);box-shadow:none}.sb-key.vowel{background:var(--warning);color:#451a03}.sb-key.consonant{background:var(--surface);border:1px solid var(--border);color:var(--text-main)}#story-scene{padding:0}#story-scene,.ss-view{width:100%;height:100%}.ss-view{display:none}.ss-view.active{display:flex;flex-direction:column}#ss-overview-view{padding:20px;overflow-y:auto;align-items:center}#ss-overview-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;width:100%;max-width:1000px}.story-card{background:var(--surface);border-radius:var(--radius-lg);overflow:hidden;cursor:pointer;transition:transform .2s;border:1px solid var(--border)}.story-card:hover{transform:translateY(-5px);border-color:var(--primary)}.story-card img{width:100%;aspect-ratio:16/9;object-fit:cover}.story-card-title{padding:16px;font-size:20px;font-weight:700}#ss-reader-view{width:100%;height:100%;padding:20px;box-sizing:border-box;gap:16px;background:var(--bg);display:flex;flex-direction:column}#sr-title{text-align:center;font-size:18px;color:var(--text-muted);margin:0 0 10px;flex-shrink:0}.sr-layout{flex-direction:column;justify-content:space-between;flex-grow:1;max-width:1000px;margin:0 auto;gap:10px}#sr-image-area,.sr-layout{display:flex;align-items:center;width:100%;min-height:0}#sr-image-area{position:relative;flex:1;justify-content:center}#sr-image{max-width:100%;max-height:100%;object-fit:contain;border-radius:var(--radius-md);box-shadow:var(--shadow-card)}.sr-nav-btn{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;background:var(--surface-glass);border:1px solid var(--border);border-radius:50%;color:white;font-size:24px;cursor:pointer;z-index:10;backdrop-filter:blur(4px)}#sr-prev-btn{left:5px}#sr-next-btn{right:5px}#sr-text-area{flex:1;width:100%;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:10px 20px;text-align:center;overflow-y:auto;min-height:0}#sr-text-content{font-size:20px;line-height:1.5;flex-grow:1;overflow-y:auto}.word{display:inline-block;padding:2px 4px;border-radius:4px;cursor:pointer;transition:background .1s}.word:active{background:rgba(255,255,255,.1)}.rainbow-word{color:var(--primary);font-weight:700}@media (min-width:850px){.sr-layout{flex-direction:row;gap:20px}#sr-text-area{width:40%;height:100%;flex:0 0 40%}#sr-image-area{width:60%;height:100%;flex:1}}#confetti-container{pointer-events:none;position:fixed;inset:0;z-index:9999}.confetti{position:absolute;width:10px;height:10px;background:var(--accent);animation:fall 2s linear forwards}@keyframes fall{to{transform:translateY(100vh) rotate(2turn);opacity:0}}