:root{--bg-primary: #0a0a0a;--bg-secondary: #141414;--bg-tertiary: #1a1a1a;--bg-elevated: #222;--text-primary: #e5e5e5;--text-secondary: #888;--text-muted: #555;--accent: #f59e0b;--accent-hover: #d97706;--accent-muted: rgba(245, 158, 11, .15);--success: #22c55e;--error: #ef4444;--warning: #f59e0b;--border: #2a2a2a;--border-hover: #3a3a3a;--radius-sm: 2px;--radius: 4px;--radius-lg: 6px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg-primary);min-height:100vh;color:var(--text-primary);line-height:1.5}.app{min-height:100vh;max-width:1200px;margin:0 auto;padding:24px}.header{display:flex;align-items:center;justify-content:space-between;padding-bottom:24px;border-bottom:1px solid var(--border);margin-bottom:24px}.header-left{display:flex;align-items:center;gap:12px}.header-icon{width:36px;height:36px;background:var(--accent-muted);border:1px solid var(--accent);border-radius:var(--radius);display:flex;align-items:center;justify-content:center}.header-icon svg{width:18px;height:18px;color:var(--accent)}.header-title{font-size:18px;font-weight:600;color:var(--text-primary);letter-spacing:-.02em}.header-subtitle{font-size:12px;color:var(--text-muted);font-family:SF Mono,Monaco,Consolas,monospace}.header-right{display:flex;align-items:center}.github-link{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:var(--radius);color:var(--text-secondary);transition:color .15s,background .15s}.github-link:hover{color:var(--text-primary);background:var(--bg-tertiary)}.github-link svg{width:18px;height:18px}.main-layout{display:grid;grid-template-columns:1fr 280px;gap:24px}@media (max-width: 900px){.main-layout{grid-template-columns:1fr}}.card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.main-card{display:flex;flex-direction:column;gap:20px}.card-header{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--border)}.card-header-icon{width:32px;height:32px;background:var(--bg-tertiary);border-radius:var(--radius);display:flex;align-items:center;justify-content:center}.card-header-icon svg{width:16px;height:16px;color:var(--text-secondary)}.card-header-text h2{font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:2px}.card-header-text p{font-size:12px;color:var(--text-muted)}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:11px;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}textarea{width:100%;height:120px;padding:12px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);font-size:14px;color:var(--text-primary);resize:vertical;font-family:inherit;transition:border-color .15s}textarea:focus{outline:none;border-color:var(--accent)}textarea::placeholder{color:var(--text-muted)}.char-count{text-align:right;font-size:11px;color:var(--text-muted);font-family:SF Mono,Monaco,Consolas,monospace}.selectors-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width: 500px){.selectors-row{grid-template-columns:1fr}}select{width:100%;padding:10px 32px 10px 12px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);font-size:13px;color:var(--text-primary);cursor:pointer;transition:border-color .15s;-webkit-appearance:none;-moz-appearance:none;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='%23888' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}select:focus{outline:none;border-color:var(--accent)}select option{background:var(--bg-secondary);color:var(--text-primary)}.sliders-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media (max-width: 500px){.sliders-row{grid-template-columns:1fr}}.slider-group{display:flex;flex-direction:column;gap:8px}.slider-header{display:flex;justify-content:space-between;align-items:center}.slider-label{font-size:11px;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.slider-value{font-size:12px;color:var(--text-muted);font-family:SF Mono,Monaco,Consolas,monospace}.slider{-webkit-appearance:none;width:100%;height:4px;background:var(--bg-tertiary);border-radius:2px;outline:none}.slider::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;background:var(--text-primary);border-radius:2px;cursor:pointer;transition:background .15s}.slider::-webkit-slider-thumb:hover{background:var(--accent)}.slider::-moz-range-thumb{width:14px;height:14px;background:var(--text-primary);border-radius:2px;cursor:pointer;border:none}.btn-generate{width:100%;padding:12px 16px;background:var(--accent);border:none;border-radius:var(--radius);font-size:13px;font-weight:600;color:#000;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:background .15s}.btn-generate:hover:not(:disabled){background:var(--accent-hover)}.btn-generate:disabled{opacity:.5;cursor:not-allowed}.btn-generate svg{width:14px;height:14px}.loading-spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(0,0,0,.2);border-radius:50%;border-top-color:#000;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.status-message{padding:10px 12px;border-radius:var(--radius);font-size:12px;text-align:center;border:1px solid}.status-message.loading{background:var(--accent-muted);color:var(--accent);border-color:var(--accent)}.status-message.success{background:#22c55e1a;color:var(--success);border-color:var(--success)}.status-message.error{background:#ef44441a;color:var(--error);border-color:var(--error)}.audio-container{padding:12px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);display:flex;flex-direction:column;gap:10px}.audio-container audio{width:100%;height:32px}.btn-download{padding:8px 12px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius);font-size:12px;font-weight:500;color:var(--text-primary);cursor:pointer;transition:background .15s,border-color .15s}.btn-download:hover{background:var(--bg-elevated);border-color:var(--border-hover)}.sidebar{display:flex;flex-direction:column;gap:16px}.sidebar .card{padding:16px}.sidebar .card h3{font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}.api-key-input-group{display:flex;gap:8px}.api-key-input{flex:1;padding:8px 10px;background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius);font-size:12px;font-family:SF Mono,Monaco,Consolas,monospace;color:var(--text-primary);transition:border-color .15s}.api-key-input:focus{outline:none;border-color:var(--accent)}.api-key-input::placeholder{color:var(--text-muted)}.btn-save-key{padding:8px 12px;background:var(--success);border:none;border-radius:var(--radius);font-size:11px;font-weight:600;color:#000;cursor:pointer;transition:opacity .15s;white-space:nowrap}.btn-save-key:hover{opacity:.9}.api-key-hint{font-size:11px;color:var(--text-muted);margin-top:8px;line-height:1.4}.api-key-status{margin-left:6px;font-weight:500}.api-key-status.saved{color:var(--success)}.api-key-status.cleared{color:var(--error)}.status-card{display:flex;flex-direction:column;gap:12px}.status-header{display:flex;align-items:center;gap:10px}.status-icon{width:28px;height:28px;background:#22c55e1a;border-radius:var(--radius);display:flex;align-items:center;justify-content:center}.status-icon svg{width:14px;height:14px;color:var(--success)}.status-text h3{font-size:12px;font-weight:500;color:var(--text-primary);text-transform:none;letter-spacing:normal;margin-bottom:0}.status-text p{font-size:11px;color:var(--success)}.engine-tags{display:flex;gap:6px;flex-wrap:wrap}.engine-tag{padding:4px 8px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:10px;font-family:SF Mono,Monaco,Consolas,monospace;color:var(--text-secondary);text-transform:uppercase}.tips-list{list-style:none;display:flex;flex-direction:column;gap:8px}.tips-list li{font-size:12px;color:var(--text-secondary);line-height:1.4;padding-left:12px;position:relative}.tips-list li:before{content:"›";position:absolute;left:0;color:var(--text-muted)}.api-info{display:flex;flex-direction:column;gap:8px}.api-row{display:flex;justify-content:space-between;align-items:center}.api-label{font-size:11px;color:var(--text-muted)}.api-value{font-size:11px;font-family:SF Mono,Monaco,Consolas,monospace;color:var(--text-primary);background:var(--bg-tertiary);padding:2px 6px;border-radius:var(--radius-sm)}.footer{text-align:center;padding:20px 0;margin-top:24px;border-top:1px solid var(--border)}.footer p{font-size:11px;color:var(--text-muted)}