*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #1a1520;--card: #2a2333;--card-hover: #332b3d;--gold: #e8a838;--gold-dim: #c48a20;--coral: #f06c64;--success: #5cc89c;--error: #e85d5d;--text: #f0ece4;--text-muted: #a8a0b4;--border-subtle: rgba(255, 255, 255, .08);--border-warm: rgba(232, 168, 56, .15);--glow-gold: rgba(232, 168, 56, .25);--glow-success: rgba(92, 200, 156, .3);--glow-error: rgba(232, 93, 93, .3);font-family:Outfit,system-ui,-apple-system,sans-serif;line-height:1.5;color:var(--text);background-color:var(--bg);-webkit-font-smoothing:antialiased}body{min-height:100vh;display:flex;justify-content:center;position:relative}body:after{content:"";position:fixed;inset:0;background:repeating-conic-gradient(rgba(255,255,255,.03) 0% 25%,transparent 0% 50%) 0 0 / 3px 3px;pointer-events:none;z-index:9999}#root{width:100%;max-width:480px;padding:1.5rem 1rem}.btn{padding:.85rem 1.5rem;border:none;border-radius:12px;font-size:1.05rem;font-weight:600;cursor:pointer;transition:opacity .15s,transform .1s,box-shadow .2s;font-family:inherit}.btn:hover{opacity:.9}.btn:active{transform:scale(.97)}.btn-primary{background:var(--gold);color:#1a1520;box-shadow:0 2px 12px var(--glow-gold)}.btn-primary:hover{box-shadow:0 4px 20px var(--glow-gold)}.btn-secondary{background:var(--card);color:var(--text);border:1px solid var(--border-subtle)}.back-link{background:none;border:none;color:var(--text-muted);font-size:.95rem;cursor:pointer;font-family:inherit}.back-link:hover{color:var(--text)}.reset-link{display:block;background:none;border:none;color:var(--text-muted);font-size:.85rem;cursor:pointer;text-decoration:underline;margin:2rem auto 0;font-family:inherit}.reset-link:hover{color:var(--error)}.home-screen{padding-top:1.5rem}.home-header{text-align:center;margin-bottom:1.5rem}.home-header h1{font-size:2rem;font-weight:700;color:var(--text)}.home-subtitle{color:var(--text-muted);font-size:.9rem;margin-top:.25rem}.tab-bar{display:flex;gap:0;background:var(--card);border:1px solid var(--border-subtle);border-radius:12px;padding:3px;margin-bottom:1.25rem}.tab-btn{flex:1;padding:.6rem .3rem;border:none;border-radius:10px;background:transparent;font-size:.85rem;font-weight:600;color:var(--text-muted);cursor:pointer;transition:background .2s,color .2s;white-space:nowrap;font-family:inherit}.tab-btn.active{background:var(--gold);color:#1a1520;box-shadow:0 1px 8px var(--glow-gold)}.lesson-map{display:flex;flex-direction:column;gap:.6rem}.lesson-card{display:flex;justify-content:space-between;align-items:center;padding:.9rem 1rem;border:1px solid var(--border-subtle);border-radius:12px;background:var(--card);cursor:pointer;text-align:left;transition:box-shadow .15s,transform .15s,border-color .15s;font-family:inherit}.lesson-card:hover:not(.locked){box-shadow:0 2px 12px #0000004d;transform:translateY(-1px);border-color:var(--border-warm)}.lesson-card.locked{opacity:.4;cursor:not-allowed}.lesson-card.completed{border-left:4px solid var(--gold)}.lesson-card-left{display:flex;align-items:center;gap:.75rem}.lesson-number{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--gold);color:#1a1520;font-weight:700;font-size:.85rem;flex-shrink:0}.lesson-card.locked .lesson-number{background:#3a3345;color:var(--text-muted)}.lesson-card.completed .lesson-number{background:var(--success);color:#1a1520}.lesson-info{display:flex;flex-direction:column}.lesson-title{font-weight:600;font-size:.95rem;color:var(--text)}.lesson-subtitle{font-size:.78rem;color:var(--text-muted);margin-top:1px}.lesson-card-right{flex-shrink:0;font-size:.9rem}.lock-icon{font-size:1rem}.stars{color:var(--gold);font-size:1rem;letter-spacing:1px;text-shadow:0 0 8px var(--glow-gold)}.play-icon{color:var(--gold);font-size:1.1rem}.lesson-intro{padding-top:.5rem}.intro-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.intro-counter{font-size:.9rem;color:var(--text-muted);font-weight:600}.intro-card{background:var(--card);border:1px solid var(--border-warm);border-radius:20px;box-shadow:0 4px 24px #0000004d;padding:2.5rem 1.5rem;text-align:center;margin-bottom:2rem}.intro-thai{font-size:7rem;line-height:1.1;margin-bottom:.5rem;position:relative;display:inline-block}.intro-thai:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:140px;height:140px;background:radial-gradient(circle,var(--glow-gold) 0%,transparent 70%);border-radius:50%;z-index:-1;animation:char-glow 3s ease-in-out infinite}.intro-sound{font-size:1.6rem;font-weight:700;color:var(--gold);margin-bottom:.5rem}.intro-hint{font-size:1rem;color:var(--text-muted);margin-bottom:1rem}.intro-memory{font-size:.9rem;color:var(--text-muted);font-style:italic;border-top:1px solid var(--border-subtle);padding-top:.75rem}.intro-nav{display:flex;gap:.75rem}.intro-nav .btn{flex:1}.lesson-quiz{padding-top:.5rem}.quiz-header{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem}.quiz-header .back-link{font-size:1.2rem;flex-shrink:0}.quiz-header .progress-bar{margin-bottom:0}.progress-bar{position:relative;width:100%;height:12px;background:#3a3345;border-radius:6px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--gold-dim),var(--gold));border-radius:6px;transition:width .3s ease;box-shadow:0 0 8px var(--glow-gold)}.progress-text{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:0;color:transparent}.quiz-question{text-align:center}.quiz-prompt{font-size:1rem;color:var(--text-muted);margin-bottom:1rem}.quiz-display-char{font-size:6rem;line-height:1.1;margin-bottom:1.5rem;position:relative;display:inline-block}.quiz-display-char:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:120px;height:120px;background:radial-gradient(circle,var(--glow-gold) 0%,transparent 70%);border-radius:50%;z-index:-1;animation:char-glow 3s ease-in-out infinite}.quiz-display-sound{font-size:1.2rem;color:var(--gold);font-weight:600;background:#e8a8381a;border:1px solid var(--border-warm);padding:.75rem 1.5rem;border-radius:12px;display:inline-block;margin-bottom:1.5rem}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}.quiz-option{padding:.9rem;border:2px solid var(--border-subtle);border-radius:12px;background:var(--card);color:var(--text);font-size:1.05rem;font-weight:500;cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s;font-family:inherit}.quiz-option:hover{border-color:var(--gold)}.quiz-option.correct{border-color:var(--success);background:#5cc89c1a;box-shadow:0 0 12px var(--glow-success)}.quiz-option.wrong{border-color:var(--error);background:#e85d5d1a;box-shadow:0 0 12px var(--glow-error)}.quiz-option-char{font-size:2.2rem;padding:1rem}.match-container{display:flex;gap:1.5rem;justify-content:center}.match-column{display:flex;flex-direction:column;gap:.6rem}.match-item{padding:.8rem 1.2rem;border:2px solid var(--border-subtle);border-radius:12px;background:var(--card);color:var(--text);font-size:1rem;font-weight:500;cursor:pointer;transition:border-color .2s,background .2s,transform .15s,box-shadow .2s;min-width:80px;text-align:center;font-family:inherit}.match-char{font-size:2rem;padding:.6rem 1.2rem}.match-item.selected{border-color:var(--gold);background:#e8a8381a;transform:scale(1.05);box-shadow:0 0 12px var(--glow-gold)}.match-item.matched{border-color:var(--success);background:#5cc89c1a;opacity:.7;cursor:default}.match-item.wrong{border-color:var(--error);background:#e85d5d1a;box-shadow:0 0 12px var(--glow-error);animation:shake .3s ease}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}75%{transform:translate(4px)}}.class-sort-options{display:flex;gap:.6rem}.class-sort-btn{flex:1;padding:1rem .5rem;border:2px solid var(--border-subtle);border-radius:12px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:border-color .15s,background .15s,transform .1s,box-shadow .15s;font-family:inherit}.class-sort-btn:hover{transform:scale(1.03)}.class-btn-mid{background:#5cc89c1a;color:var(--success);border-color:#5cc89c4d}.class-btn-high{background:#64a0ff1a;color:#7db4ff;border-color:#64a0ff4d}.class-btn-low{background:#e8a8381a;color:var(--gold);border-color:#e8a8384d}.class-sort-btn.correct{border-color:var(--success);background:#5cc89c26;box-shadow:0 0 12px var(--glow-success)}.class-sort-btn.wrong{border-color:var(--error);background:#e85d5d1a;box-shadow:0 0 12px var(--glow-error)}.final-sound-options{display:grid;grid-template-columns:1fr 1fr 1fr;gap:.6rem}.final-sound-btn{padding:.9rem .5rem;border:2px solid var(--border-subtle);border-radius:12px;background:var(--card);color:var(--text);font-size:1.05rem;font-weight:600;cursor:pointer;transition:border-color .15s,background .15s,transform .1s,box-shadow .15s;font-family:inherit}.final-sound-btn:hover{border-color:var(--gold);transform:scale(1.03)}.final-sound-btn.correct{border-color:var(--success);background:#5cc89c1a;box-shadow:0 0 12px var(--glow-success)}.final-sound-btn.wrong{border-color:var(--error);background:#e85d5d1a;box-shadow:0 0 12px var(--glow-error)}.lesson-complete{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:70vh;text-align:center}.complete-card{background:var(--card);border:1px solid var(--border-warm);border-radius:20px;box-shadow:0 4px 24px #0000004d;padding:2.5rem 2rem;margin-bottom:2rem;width:100%}.complete-card h2{font-size:1.6rem;margin-bottom:.25rem;color:var(--text)}.complete-lesson-name{color:var(--text-muted);font-size:.95rem;margin-bottom:1.5rem}.complete-stars{margin-bottom:1rem}.complete-stars .star{font-size:2.5rem;color:#3a3345;margin:0 .15rem;transition:color .3s;display:inline-block}.complete-stars .star.filled{color:var(--gold);text-shadow:0 0 12px var(--glow-gold);animation:star-appear .5s ease-out backwards}.complete-stars .star.filled:nth-child(1){animation-delay:.2s}.complete-stars .star.filled:nth-child(2){animation-delay:.5s}.complete-stars .star.filled:nth-child(3){animation-delay:.8s}.complete-score{font-size:2.5rem;font-weight:700;color:var(--gold);margin-bottom:.25rem}.complete-message{color:var(--text-muted);font-size:1.05rem}.complete-actions{display:flex;gap:.75rem;width:100%}.complete-actions .btn{flex:1}.play-btn{background:none;border:1px solid var(--border-warm);color:var(--gold);width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:opacity .15s,background .15s,box-shadow .15s;vertical-align:middle;flex-shrink:0}.play-btn:hover{background:#e8a8381a;box-shadow:0 0 8px var(--glow-gold)}.play-btn.playing{opacity:.6;cursor:default}.intro-audio{display:flex;align-items:center;justify-content:center;gap:.5rem}.quiz-char-audio{display:flex;align-items:center;justify-content:center;gap:.5rem;margin-bottom:1.5rem}.quiz-char-audio .quiz-display-char,.quiz-char-audio .quiz-display-sound{margin-bottom:0}@keyframes char-glow{0%,to{opacity:.5;transform:translate(-50%,-50%) scale(1)}50%{opacity:.8;transform:translate(-50%,-50%) scale(1.1)}}@keyframes star-appear{0%{opacity:0;transform:scale(0) rotate(-30deg)}60%{transform:scale(1.3) rotate(5deg)}to{opacity:1;transform:scale(1) rotate(0)}}