*{margin:0;padding:0;box-sizing:border-box}:root{--bg: #0f1117;--bg-card: #1a1d27;--bg-hover: #252836;--text: #e4e4e7;--text-muted: #71717a;--accent: #6366f1;--accent-hover: #818cf8;--success: #22c55e;--error: #ef4444;--warning: #f59e0b;--border: #27272a;--radius: 12px;--safe-bottom: env(safe-area-inset-bottom, 0px)}html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}body{font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}.app{display:flex;flex-direction:column;min-height:100dvh}.sidebar{order:2;position:fixed;bottom:0;left:0;right:0;z-index:100;background:var(--bg-card);border-top:1px solid var(--border);display:flex;align-items:stretch;justify-content:space-around;padding:4px 4px calc(4px + var(--safe-bottom));gap:0}.logo{display:none}.sidebar a{color:var(--text-muted);text-decoration:none;padding:8px 4px;border-radius:8px;font-size:.7rem;font-weight:500;transition:all .15s;display:flex;flex-direction:column;align-items:center;gap:2px;flex:1;text-align:center;min-height:44px;justify-content:center}.sidebar a:hover{background:var(--bg-hover);color:var(--text)}.sidebar a.active{background:transparent;color:var(--accent);font-weight:700}.main-content{order:1;padding:16px 16px calc(80px + var(--safe-bottom));flex:1;max-width:720px;width:100%;margin:0 auto}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px;transition:border-color .15s}.card:hover{border-color:var(--accent)}.card-grid{display:grid;grid-template-columns:1fr;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;border-radius:10px;font-size:1rem;font-weight:600;border:none;cursor:pointer;transition:all .15s;min-height:48px;-webkit-user-select:none;user-select:none}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.4;pointer-events:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text)}.btn-outline:hover{border-color:var(--accent);color:var(--accent)}.btn-sm{padding:8px 14px;font-size:.85rem;min-height:40px}.btn-lg{padding:18px 28px;font-size:1.15rem;min-height:56px;border-radius:14px}input,textarea,select{background:var(--bg);border:1.5px solid var(--border);border-radius:10px;padding:14px 16px;color:var(--text);font-size:1rem;width:100%;font-family:inherit;min-height:48px;-webkit-appearance:none}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent)}textarea{resize:vertical;min-height:150px}label{display:block;font-size:.85rem;font-weight:500;color:var(--text-muted);margin-bottom:6px}.form-group{margin-bottom:16px}.badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:.75rem;font-weight:600}.badge-song{background:#312e81;color:#a5b4fc}.badge-literary{background:#1e3a2f;color:#86efac}.badge-quote{background:#3b1f0b;color:#fbbf24}.badge-A2{background:#166534;color:#bbf7d0}.badge-B1{background:#1e3a5f;color:#93c5fd}.badge-B2{background:#4c1d95;color:#c4b5fd}.badge-C1{background:#7f1d1d;color:#fca5a5}.exercise-question{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px}.exercise-input{background:var(--bg-card);border:2px dashed var(--border);border-radius:8px;padding:12px 16px;color:var(--accent);font-weight:600;font-size:1rem;width:100%;max-width:280px;text-align:center;min-height:48px}.exercise-input:focus{border-color:var(--accent);border-style:solid}.correct{border-color:var(--success)!important;color:var(--success)!important}.incorrect{border-color:var(--error)!important;color:var(--error)!important}.stat-card{text-align:center;padding:20px 16px}.stat-number{font-size:2rem;font-weight:700;color:var(--accent)}.stat-label{font-size:.85rem;color:var(--text-muted);margin-top:4px}.review-card{max-width:500px;margin:24px auto;text-align:center;padding:32px 20px}.review-word{font-size:1.8rem;font-weight:700;margin-bottom:16px}.review-definition{font-size:1.1rem;color:var(--text-muted);margin-bottom:24px}.review-buttons{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}.streak-banner{background:linear-gradient(135deg,#4f46e5,#7c3aed);border-radius:var(--radius);padding:16px 20px;margin-bottom:20px;display:flex;align-items:center;justify-content:space-between}.streak-count{font-size:1.3rem;font-weight:700}@media(min-width:769px){.app{flex-direction:row}.sidebar{order:0;position:fixed;top:0;bottom:0;left:0;right:auto;width:200px;flex-direction:column;justify-content:flex-start;border-top:none;border-right:1px solid var(--border);padding:24px 12px;gap:2px}.logo{display:block;font-size:1.2rem;font-weight:700;margin-bottom:24px;color:var(--accent);padding:0 12px}.sidebar a{flex-direction:row;font-size:.9rem;padding:10px 14px;justify-content:flex-start;min-height:auto}.sidebar a.active{background:var(--accent);color:#fff}.main-content{margin-left:200px;padding:32px}.card-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}}.vocal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:0;padding-bottom:var(--safe-bottom);overflow:hidden;touch-action:manipulation}.vocal-progress{position:relative;width:100%;height:8px;background:var(--bg-card);flex-shrink:0}.vocal-progress-bar{height:100%;background:var(--accent);transition:width .4s ease}.vocal-progress-text{position:absolute;top:16px;right:16px;font-size:1rem;font-weight:600;color:var(--text-muted)}.vocal-center{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;width:100%;padding:24px 20px;text-align:center;gap:20px;overflow-y:auto}.vocal-indicator{width:140px;height:140px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--bg-card);border:4px solid var(--border);transition:all .3s ease;flex-shrink:0}.vocal-indicator.speaking{border-color:var(--accent);box-shadow:0 0 0 12px #6366f11f,0 0 0 24px #6366f10f;animation:pulse-speaking 1.5s ease-in-out infinite}.vocal-indicator.listening{border-color:var(--success);box-shadow:0 0 0 12px #22c55e1f,0 0 0 24px #22c55e0f;animation:pulse-listening 1s ease-in-out infinite}.vocal-indicator.thinking{border-color:var(--warning);box-shadow:0 0 0 12px #f59e0b1f;animation:pulse-thinking 2s ease-in-out infinite}.vocal-icon{font-size:3.5rem;line-height:1}@keyframes pulse-speaking{0%,to{transform:scale(1)}50%{transform:scale(1.06)}}@keyframes pulse-listening{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}@keyframes pulse-thinking{0%,to{opacity:1}50%{opacity:.6}}.vocal-state-label{font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;padding:6px 16px;border-radius:20px;background:var(--bg-card)}.vocal-state-label.speaking{color:var(--accent)}.vocal-state-label.listening{color:var(--success)}.vocal-state-label.thinking{color:var(--warning)}.vocal-display{font-size:1.5rem;font-weight:600;color:var(--text);line-height:1.4;max-width:100%;word-wrap:break-word}.vocal-transcript{font-size:1.15rem;color:var(--success);font-style:italic;min-height:1.5em;padding:8px 16px;background:#22c55e14;border-radius:8px}.vocal-score{font-size:4rem;font-weight:800;color:var(--accent);line-height:1}.vocal-controls{width:100%;padding:16px 20px;display:flex;gap:12px;flex-shrink:0}.vocal-btn{flex:1;padding:18px 24px!important;font-size:1.15rem!important;border-radius:14px!important;min-height:60px!important;font-weight:700!important}.vocal-stop{border-color:var(--error)!important;color:var(--error)!important}.vocal-stop:active{background:var(--error)!important;color:#fff!important}.vocal-setup{padding:0}.vocal-setup h2{font-size:1.5rem;margin-bottom:4px}.vocal-setup-subtitle{color:var(--text-muted);margin-bottom:20px;font-size:.95rem}.vocal-setup .card{padding:20px}.vocal-setup .card h3{font-size:1.1rem;margin-bottom:16px}.vocal-setup select{font-size:1rem;padding:14px 16px}.vocal-setup .btn{width:100%}.vocal-start-grid{display:flex;flex-direction:column;gap:12px}.vocal-start-buttons{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:8px}.vocal-surprise-btn{grid-column:1 / -1}.vocal-due-badge{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;font-weight:700;font-size:.9rem;width:28px;height:28px;border-radius:50%;margin-left:8px}@media(orientation:landscape)and (max-height:500px){.vocal-indicator{width:80px;height:80px}.vocal-icon{font-size:2rem}.vocal-display{font-size:1.2rem}.vocal-center{gap:12px;padding:12px 20px}}@media(min-width:769px){.vocal-indicator{width:160px;height:160px}.vocal-icon{font-size:4rem}.vocal-display{font-size:2rem}.vocal-controls{max-width:400px;margin:0 auto}}