.container{max-width:1200px;margin:0 auto;background:#fff;border-radius:16px;box-shadow:0 20px 40px #0000001a;overflow:hidden}.header{background:linear-gradient(90deg,#4f46e5,#7c3aed);color:#fff;text-align:center}.upload-area{padding:40px;text-align:center;border:3px dashed #d1d5db;margin:20px;border-radius:12px;cursor:pointer;transition:all .3s ease}.upload-area:hover{border-color:#4f46e5;background:#f8fafc}.upload-area.dragover{border-color:#4f46e5;background:#eff6ff}.upload-area.loading{cursor:not-allowed;pointer-events:none;opacity:.8}.loading-spinner{width:48px;height:48px;border:4px solid #e5e7eb;border-top-color:#4f46e5;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.editor-section{padding:20px;display:none}.video-container{position:relative;background:#000;border-radius:8px;overflow:hidden;margin-bottom:20px}#videoPreview{width:100%;height:auto;display:block}.export-section{background:#f8fafc;padding:20px;border-top:1px solid #e2e8f0;text-align:center}.format-selector{display:flex;gap:20px;justify-content:center;margin-bottom:20px}.format-option{display:flex;align-items:center;gap:8px;cursor:pointer;padding:8px 12px;border-radius:6px;transition:background-color .2s}.format-option:hover{background-color:#e2e8f0}.format-option input[type=radio]{margin:0;transform:scale(1.2)}.progress-container{margin:20px 0;display:none}.progress-bar{width:100%;height:8px;background:#e2e8f0;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#4f46e5,#7c3aed);width:0%;transition:width .3s ease}.progress-text{margin-top:10px;color:#64748b;font-size:14px}.timeline-container{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;padding:20px;margin-bottom:20px}.timeline{position:relative;height:60px;background:#e2e8f0;border-radius:4px;margin:25px 0 10px;cursor:pointer;overflow:visible}.timeline-track{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(to right,#94a3b8,#64748b)}.segment{position:absolute;top:4px;height:52px;background:linear-gradient(90deg,#10b981,#059669);border:2px solid #065f46;border-radius:4px;cursor:pointer;opacity:.8;overflow:visible}.segment-content{position:absolute;inset:0 8px;display:flex;flex-direction:column;justify-content:center;align-items:center;pointer-events:none;z-index:5}.segment-duration{font-size:10px;font-weight:700;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.5);background:#0000004d;padding:1px 4px;border-radius:2px;white-space:nowrap}.segment-label{position:absolute;font-size:11px;color:#1f2937;font-weight:600;background:#fff;padding:3px 6px;border-radius:4px;white-space:nowrap;pointer-events:none;z-index:30;border:1px solid #d1d5db;box-shadow:0 2px 4px #0000001a}.segment-label.start{top:-28px;left:-2px}.segment-label.end{top:58px;right:-2px}.segment:hover{opacity:1}.segment.selected{background:linear-gradient(90deg,#3b82f6,#2563eb);border-color:#1d4ed8;opacity:1;box-shadow:0 0 0 2px #3b82f680}.segment.preview{background:linear-gradient(90deg,#f59e0b,#d97706);border-color:#92400e;opacity:.9}.segment-handle{position:absolute;top:0;width:8px;height:100%;background:#ffffffe6;cursor:ew-resize;border-radius:2px;opacity:.3;transition:opacity .2s;z-index:15;pointer-events:auto}.segment-handle.start{left:0}.segment-handle.end{right:0}.segment:hover .segment-handle,.segment.selected .segment-handle{opacity:1;background:#fff}.segment-handle:hover{background:#fff;opacity:1;box-shadow:0 0 4px #0000004d}.playhead{position:absolute;top:0;width:3px;height:100%;background:#ef4444;pointer-events:none;z-index:10}.time-labels{display:flex;justify-content:space-between;margin-top:5px;font-size:12px;color:#64748b}.controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;margin-bottom:20px}.control-group{background:#f8fafc;padding:15px;border-radius:8px;border:1px solid #e2e8f0}.control-group h3{margin-bottom:10px;color:#374151;font-size:14px}.segments-list{max-height:200px;overflow-y:auto;background:#fff;border:1px solid #e2e8f0;border-radius:6px}.segment-item{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;border-bottom:1px solid #f1f5f9;cursor:pointer;transition:background-color .2s}.segment-item:hover{background-color:#f8fafc}.segment-item.selected{background-color:#eff6ff;border-left:3px solid #3b82f6}.segment-item:last-child{border-bottom:none}.segment-times{font-family:monospace;font-size:12px;color:#64748b}.btn{background:#4f46e5;color:#fff;border:none;padding:10px 16px;border-radius:6px;cursor:pointer;font-size:14px;transition:all .2s}.btn:hover{background:#4338ca;transform:translateY(-1px)}.btn:disabled{background:#9ca3af;cursor:not-allowed;transform:none}.btn-small{padding:6px 10px;font-size:12px}.btn-danger{background:#ef4444}.btn-danger:hover{background:#dc2626}.btn-success{background:#10b981}.btn-success:hover{background:#059669}.time-input{display:flex;gap:10px;margin:10px 0}.time-input input{width:80px;padding:8px;border:1px solid #d1d5db;border-radius:4px;font-family:monospace;text-align:center}.segment-progress-item{background:#f8fafc;padding:12px;border-radius:6px;margin-bottom:8px;border:1px solid #e2e8f0}.segment-progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.segment-progress-title{font-weight:500;color:#374151;font-size:14px}.segment-progress-status{font-size:12px;color:#6b7280;font-family:monospace}.segment-progress-status.pending{color:#6b7280}.segment-progress-status.processing{color:#3b82f6;font-weight:600}.segment-progress-status.completed{color:#10b981;font-weight:600}.segment-progress-status.error{color:#ef4444;font-weight:600}.segment-progress-bar{height:6px;background:#e5e7eb;border-radius:3px;overflow:hidden}.segment-progress-fill{height:100%;background:#3b82f6;transition:width .3s ease}.segment-result-item{background:#f8fafc;padding:15px;border-radius:8px;border:1px solid #e2e8f0;display:grid;gap:10px}.segment-result-header{display:flex;justify-content:space-between;align-items:center}.segment-result-title{font-weight:600;color:#374151;font-size:14px}.segment-result-info{font-size:12px;color:#6b7280;font-family:monospace}.segment-result-video{width:100%;max-width:300px;margin:0 auto;display:block;border-radius:4px;background:#000}.segment-result-actions{display:flex;gap:8px;justify-content:center}.segment-result-actions .btn{flex:1;max-width:150px}@media (max-width: 768px){.format-selector{flex-direction:column;align-items:center;gap:12px}.format-option{justify-content:center;padding:12px 16px;min-width:200px}.controls{grid-template-columns:1fr}.container{margin:10px;border-radius:8px}.header{padding:16px}.timeline{height:100px;margin:35px 0 20px}.segment{height:92px;top:4px}.segment-handle{width:20px;height:100%;background:#fffffff2;opacity:.8;border-radius:4px;position:absolute;top:0}.segment-handle.start{left:0}.segment-handle.end{right:0}.segment:hover .segment-handle,.segment.selected .segment-handle{opacity:1;background:#fff;width:24px}.segment-duration{font-size:12px;padding:2px 6px}.segment-label{font-size:12px;padding:4px 8px}.segment-label.start{top:-32px}.segment-label.end{top:104px}.segment-content{left:20px;right:20px}}