:root{--bg: #0f0f11;--surface: #1a1a2e;--surface-hover: #22223a;--border: #2a2a40;--text: #e8e8f0;--text-muted: #8888a0;--primary: #6c5ce7;--primary-hover: #7c6cf7;--primary-glow: rgba(108, 92, 231, .3);--accent: #a29bfe;--error: #ff6b6b;--error-bg: rgba(255, 107, 107, .1);--success: #51cf66;--radius: 12px;--radius-sm: 8px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}.app{max-width:640px;margin:0 auto;padding:24px 16px 64px}.header{text-align:center;padding:32px 0 24px;position:relative}.header svg{color:var(--primary);margin-bottom:8px}.logout-btn{position:absolute;top:32px;right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);padding:6px 10px;cursor:pointer;display:flex;align-items:center;transition:all .2s}.logout-btn:hover{color:var(--error);border-color:var(--error)}.header h1{font-size:1.8rem;font-weight:700;letter-spacing:-.02em;margin-bottom:4px}.header p{color:var(--text-muted);font-size:.95rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}.label{display:block;font-weight:600;font-size:.95rem;margin-bottom:12px}.sublabel{display:block;font-size:.85rem;color:var(--text-muted);margin-bottom:6px}.api-key-row{display:flex;align-items:center;gap:8px}.api-key-input{flex:1;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;color:var(--text);font-size:.9rem;font-family:monospace;outline:none;transition:border-color .2s}.api-key-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.api-key-input::placeholder{color:var(--text-muted);font-family:monospace}.api-key-ok{display:inline-flex;align-items:center;gap:4px;font-size:.75rem;color:var(--success);font-weight:400;margin-left:8px}.api-key-hint{font-size:.75rem;color:var(--text-muted);margin-top:6px}.label-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:0}.label-row .label{margin-bottom:12px}.text-actions{display:flex;gap:6px}.icon-btn{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);font-size:.75rem;cursor:pointer;transition:all .2s}.icon-btn:hover{color:var(--text);border-color:var(--primary)}.textarea{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px;color:var(--text);font-size:.95rem;font-family:inherit;resize:vertical;transition:border-color .2s}.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.textarea::placeholder{color:var(--text-muted)}.char-count{text-align:right;font-size:.8rem;color:var(--text-muted);margin-top:6px}.char-count.over{color:var(--error)}.selector-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}.select-group select{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;color:var(--text);font-size:.9rem;cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238888a0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}.select-group select:focus{outline:none;border-color:var(--primary)}.speed-control,.volume-control{margin-top:12px}.intro-outro-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media(max-width:600px){.intro-outro-row{grid-template-columns:1fr;gap:0}}.start-control{display:flex;align-items:center;gap:10px}.start-control input[type=range]{flex:1}.start-control .preview-btn{flex-shrink:0}input[type=range]{width:100%;height:6px;-webkit-appearance:none;appearance:none;background:var(--border);border-radius:3px;outline:none;cursor:pointer}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;border:2px solid var(--surface);box-shadow:0 0 6px var(--primary-glow)}.range-labels{display:flex;justify-content:space-between;font-size:.75rem;color:var(--text-muted);margin-top:4px}.voice-preview-section{margin-top:16px;margin-bottom:4px}.voice-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.voice-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--bg);border:1px solid var(--border);border-radius:20px;color:var(--text-muted);font-size:.8rem;cursor:pointer;transition:all .2s}.voice-chip:hover:not(:disabled){border-color:var(--primary);color:var(--text)}.voice-chip.selected{border-color:var(--primary);color:var(--text);background:var(--surface-hover)}.voice-chip.playing{border-color:var(--accent);color:var(--accent);background:#a29bfe1a}.voice-chip:disabled{opacity:.4;cursor:not-allowed}.music-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin-bottom:16px}.music-card{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);cursor:pointer;font-size:.85rem;transition:all .2s;text-align:left}.music-card:hover{border-color:var(--primary);background:var(--surface-hover)}.music-card.active{border-color:var(--primary);background:var(--primary-glow)}.music-card-content{display:flex;align-items:center;gap:8px;flex:1;min-width:0}.music-card-content span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.badge{font-size:.65rem;background:var(--primary);color:#fff;padding:1px 6px;border-radius:10px;flex-shrink:0}.preview-btn{background:transparent;border:1px solid var(--border);border-radius:50%;width:28px;height:28px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);cursor:pointer;flex-shrink:0;transition:color .2s}.preview-btn:hover{color:var(--text);border-color:var(--text-muted)}.music-card-actions{display:flex;gap:4px;flex-shrink:0}.delete-btn:hover{color:var(--error);border-color:var(--error)}.instructions-textarea{font-size:.88rem}.instructions-textarea:disabled{opacity:.4;cursor:not-allowed}.instructions-badge{font-size:.7rem;color:var(--text-muted);font-weight:400;margin-left:8px}.instructions-hint{font-size:.78rem;color:var(--text-muted);margin-top:6px}.presets-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.preset-chip{padding:5px 12px;background:var(--bg);border:1px solid var(--border);border-radius:20px;color:var(--text-muted);font-size:.78rem;cursor:pointer;transition:all .2s}.preset-chip:hover{border-color:var(--primary);color:var(--text)}.preset-chip.active{border-color:var(--primary);background:var(--primary-glow);color:var(--text)}.generate-section{margin-bottom:16px}.estimates-row{display:flex;align-items:center;justify-content:center;gap:16px;color:var(--text-muted);font-size:.82rem;margin-top:8px}.estimate-item{display:inline-flex;align-items:center;gap:4px}.music-add-section{display:flex;gap:12px;align-items:flex-start;flex-wrap:wrap}.upload-section{display:flex;flex-shrink:0}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s;border:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 12px var(--primary-glow)}.btn-primary:hover:not(:disabled){background:var(--primary-hover);box-shadow:0 4px 20px var(--primary-glow)}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-outline:hover:not(:disabled){border-color:var(--primary);color:var(--accent)}.generate-btn{width:100%;justify-content:center;padding:14px;font-size:1rem;margin-bottom:16px}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.audio-player{text-align:center}.audio-element{width:100%;margin-bottom:12px;border-radius:var(--radius-sm)}.download-row{display:flex;align-items:center;gap:10px;justify-content:center;flex-wrap:wrap}.filename-input-group{display:flex;align-items:center;gap:6px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:6px 10px}.filename-icon{color:var(--text-muted);flex-shrink:0}.filename-input{background:none;border:none;color:var(--text);font-size:.85rem;outline:none;width:140px}.filename-input::placeholder{color:var(--text-muted)}.filename-ext{color:var(--text-muted);font-size:.8rem}.download-btn{text-decoration:none;flex-shrink:0}.error-banner{display:flex;align-items:center;gap:10px;background:var(--error-bg);border:1px solid var(--error);border-radius:var(--radius-sm);padding:12px 16px;margin-bottom:16px;color:var(--error);font-size:.9rem}.error-banner span{flex:1}.dismiss-btn{background:none;border:none;color:var(--error);cursor:pointer;padding:4px;display:flex}@media(max-width:480px){.selector-row,.music-grid{grid-template-columns:1fr}.header h1{font-size:1.5rem}}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:32px;width:100%;max-width:380px}.login-header{text-align:center;margin-bottom:24px}.login-header svg{color:var(--primary);margin-bottom:8px}.login-header h1{font-size:1.5rem;font-weight:700;margin-bottom:4px}.login-header p{color:var(--text-muted);font-size:.88rem}.login-field{margin-bottom:14px}.login-field .api-key-input{width:100%;font-family:inherit}.login-error{color:var(--error);font-size:.85rem;text-align:center;margin-bottom:12px}