:root{--bg: #0f1117;--bg-surface: #1a1b23;--bg-surface-hover: #22232e;--bg-input: #14151d;--border: #2a2b36;--border-focus: #6366f1;--text: #e2e4e9;--text-muted: #8b8d97;--text-heading: #f8f9fa;--accent: #6366f1;--accent-hover: #818cf8;--accent-bg: rgba(99, 102, 241, .12);--success: #22c55e;--success-bg: rgba(34, 197, 94, .12);--error: #ef4444;--error-bg: rgba(239, 68, 68, .12);--warning: #f59e0b}*{margin:0;padding:0;box-sizing:border-box}body{background-color:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-layout{max-width:900px;margin:0 auto;padding:40px 24px 80px}.header{text-align:center;margin-bottom:32px}.header h1{font-size:28px;font-weight:600;color:var(--text-heading);margin-bottom:8px}.header p{font-size:14px;color:var(--text-muted)}.input-controls{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:20px;border-bottom:1px solid var(--border)}.tabs{display:flex;gap:8px}.engine-selector{display:flex;align-items:center;gap:8px;padding-bottom:8px}.engine-selector label{color:var(--text-muted);font-size:13px;font-weight:500;white-space:nowrap}.engine-selector select{background:var(--bg-input);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 28px 6px 10px;font-size:13px;font-family:inherit;cursor:pointer;-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238b8d97'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}.engine-selector select:focus{outline:none;border-color:var(--border-focus)}.tab{padding:12px 16px;background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:14px;font-weight:500;font-family:inherit;border-bottom:2px solid transparent;transition:all .2s ease}.tab:hover{color:var(--text)}.tab.active{color:var(--accent);border-bottom-color:var(--accent)}.input-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:8px;padding:24px;margin-bottom:24px}.drop-zone{border:2px dashed var(--border);border-radius:8px;padding:40px 20px;text-align:center;cursor:pointer;background:var(--bg-input);transition:all .2s ease}.drop-zone:hover,.drop-zone.dragging{border-color:var(--accent);background:var(--accent-bg)}.drop-icon{font-size:28px;margin-bottom:8px;color:var(--text-muted)}.drop-zone strong{display:block;color:var(--text);margin-bottom:4px;font-size:15px}.drop-zone p{color:var(--text-muted);font-size:13px}.file-input{display:none}.url-section{display:flex;flex-direction:column;gap:12px}.url-label{font-size:14px;font-weight:500;color:var(--text-heading)}.url-textarea{width:100%;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;padding:12px;color:var(--text);font-size:14px;font-family:Monaco,Courier New,monospace;line-height:1.6;resize:vertical;min-height:100px;outline:none;transition:border-color .2s ease}.url-textarea:focus{border-color:var(--border-focus)}.url-textarea::placeholder{color:var(--text-muted);opacity:.6}.url-actions{display:flex;align-items:center;gap:16px}.url-hint{font-size:12px;color:var(--text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border:none;border-radius:6px;font-size:13px;font-weight:500;font-family:inherit;cursor:pointer;transition:all .15s ease;white-space:nowrap}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--bg-surface-hover);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--text-muted)}.btn-danger:hover{border-color:var(--error);color:var(--error)}.btn-icon{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border:none;border-radius:4px;background:transparent;color:var(--text-muted);cursor:pointer;font-size:13px;transition:all .15s ease}.btn-icon:hover{background:var(--bg-surface-hover);color:var(--accent)}.btn-icon-remove:hover{color:var(--error)}.queue-section{margin-bottom:24px}.queue-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:12px;flex-wrap:wrap}.queue-title{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.queue-title h2{font-size:16px;font-weight:600;color:var(--text-heading)}.queue-stats{display:flex;gap:8px}.stat{font-size:12px;padding:2px 8px;border-radius:10px;background:var(--bg-surface);color:var(--text-muted);border:1px solid var(--border)}.stat-active{background:var(--accent-bg);color:var(--accent);border-color:transparent}.stat-done{background:var(--success-bg);color:var(--success);border-color:transparent}.stat-error{background:var(--error-bg);color:var(--error);border-color:transparent}.queue-actions{display:flex;gap:8px}.queue-list{display:flex;flex-direction:column;gap:4px}.queue-item{position:relative;display:flex;align-items:center;gap:12px;padding:12px 14px;background:var(--bg-surface);border:1px solid var(--border);border-radius:6px;cursor:pointer;transition:all .15s ease;overflow:hidden}.queue-item:hover{border-color:var(--text-muted);background:var(--bg-surface-hover)}.queue-item.selected{border-color:var(--accent);background:var(--accent-bg)}.queue-item-icon{font-size:18px;flex-shrink:0;width:24px;text-align:center}.queue-item-info{flex:1;min-width:0}.queue-item-name{font-size:14px;font-weight:500;color:var(--text-heading);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.queue-item-meta{font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.engine-tag{font-size:10px;padding:1px 6px;border-radius:4px;background:var(--accent-bg);color:var(--accent-hover);font-weight:500;letter-spacing:.02em}.queue-item-status{flex-shrink:0}.queue-item-actions{display:flex;gap:2px;flex-shrink:0}.queue-item-progress{position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--bg-input)}.queue-item-progress-fill{height:100%;background:var(--accent);transition:width .3s ease}.badge{display:inline-block;padding:2px 10px;border-radius:10px;font-size:11px;font-weight:600;letter-spacing:.3px}.badge-idle{background:var(--bg-input);color:var(--text-muted);border:1px solid var(--border)}.badge-active{background:var(--accent-bg);color:var(--accent)}.badge-completed{background:var(--success-bg);color:var(--success)}.badge-error{background:var(--error-bg);color:var(--error)}.progress-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:24px}.progress-detail-header{display:flex;align-items:center;gap:12px}.progress-detail-header h3{font-size:14px;font-weight:600;color:var(--text-heading);margin:0 0 4px}.progress-bar{width:100%;height:6px;background:var(--bg-input);border-radius:3px;overflow:hidden}.progress-bar .fill{height:100%;background:var(--accent);border-radius:3px;transition:width .3s ease}.progress-percent{font-size:12px;color:var(--text-muted)}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}.results-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:8px;padding:24px;margin-bottom:24px}.results-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--border)}.results-header h2{font-size:16px;font-weight:600;color:var(--text-heading);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.check{color:var(--success);font-size:18px;flex-shrink:0}.results-meta{display:flex;gap:24px;margin-bottom:20px;flex-wrap:wrap}.meta-item{display:flex;flex-direction:column}.meta-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}.meta-value{font-size:14px;color:var(--text-heading);font-weight:500}.transcript-preview{background:var(--bg-input);border:1px solid var(--border);border-radius:6px;padding:14px;max-height:280px;overflow-y:auto;font-family:Monaco,Courier New,monospace;font-size:13px;line-height:1.7;color:var(--text);white-space:pre-wrap;word-break:break-word}.transcript-preview::-webkit-scrollbar{width:6px}.transcript-preview::-webkit-scrollbar-track{background:transparent}.transcript-preview::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.download-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}.download-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:14px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:13px;font-weight:500;font-family:inherit;cursor:pointer;transition:all .15s ease}.download-btn:hover{border-color:var(--accent);background:var(--accent-bg);color:var(--text-heading)}.download-btn .ext{display:inline-block;background:var(--accent);color:#fff;padding:2px 8px;border-radius:3px;font-size:10px;font-weight:700;margin-bottom:6px;letter-spacing:.5px}.error-banner{background:var(--error-bg);border:1px solid var(--error);border-radius:6px;padding:16px 20px;margin-bottom:24px;display:flex;justify-content:space-between;align-items:center;gap:16px}.error-banner strong{color:var(--text-heading);font-size:14px;display:block;margin-bottom:4px}.error-banner p{color:var(--error);font-size:13px}.error-banner button{background:transparent;border:1px solid var(--error);color:var(--error);padding:6px 14px;border-radius:4px;cursor:pointer;font-size:13px;font-weight:500;font-family:inherit;flex-shrink:0;transition:all .15s ease}.error-banner button:hover{background:var(--error);color:#fff}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}@media (max-width: 640px){.app-layout{padding:24px 16px 60px}.header h1{font-size:22px}.queue-header{flex-direction:column;align-items:flex-start}.queue-actions{width:100%}.queue-actions .btn{flex:1}.queue-item{flex-wrap:wrap;gap:8px}.queue-item-info{min-width:calc(100% - 100px)}.download-grid{grid-template-columns:repeat(3,1fr)}.url-actions{flex-direction:column;align-items:flex-start}.results-meta{gap:16px}}