:root{--bg-deep: #0d0f14;--bg-panel: #141820;--bg-elevated: #1c2230;--bg-hover: #252d3d;--border: #2a3344;--text: #e8ecf4;--text-muted: #8b95a8;--accent: #5b8def;--accent-hover: #7aa3f5;--accent-glow: rgba(91, 141, 239, .25);--danger: #ef5b6a;--danger-hover: #f57a86;--success: #4ade80;--fragment-colors: #5b8def, #a78bfa, #34d399, #fbbf24, #f472b6, #38bdf8, #fb923c;--radius: 10px;--radius-sm: 6px;--font: "Outfit", system-ui, sans-serif;--mono: "JetBrains Mono", monospace;--header-h: 60px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;overflow:hidden}body{font-family:var(--font);background:var(--bg-deep);color:var(--text);line-height:1.5}#app{display:flex;flex-direction:column;height:100vh}.header{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);padding:0 24px;background:var(--bg-panel);border-bottom:1px solid var(--border);flex-shrink:0}.logo{display:flex;align-items:center;gap:10px}.logo-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:linear-gradient(135deg,var(--accent),#a78bfa);border-radius:8px;font-size:12px;color:#fff}.logo-text{font-weight:700;font-size:1.1rem;letter-spacing:.04em}.header-actions{display:flex;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 18px;border:none;border-radius:var(--radius-sm);font-family:var(--font);font-size:.875rem;font-weight:500;cursor:pointer;transition:background .15s,opacity .15s,transform .1s;white-space:nowrap}.btn:active:not(:disabled){transform:scale(.97)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{background:var(--bg-elevated);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover)}.btn-small{padding:6px 12px;font-size:.8rem}.btn-danger{background:transparent;color:var(--danger);border:1px solid var(--danger)}.btn-danger:hover:not(:disabled){background:var(--danger);color:#fff}.workspace{flex:1;overflow:hidden;display:flex;flex-direction:column}.hidden{display:none!important}.drop-zone{flex:1;display:flex;align-items:center;justify-content:center;margin:24px;border:2px dashed var(--border);border-radius:var(--radius);background:var(--bg-panel);transition:border-color .2s,background .2s}.drop-zone.drag-over{border-color:var(--accent);background:#5b8def0f}.drop-zone-content{text-align:center;padding:40px}.drop-icon{font-size:3rem;margin-bottom:16px}.drop-zone h2{font-size:1.4rem;margin-bottom:8px}.drop-zone p{color:var(--text-muted)}.drop-hint{margin-top:12px;font-size:.8rem}.editor{flex:1;display:grid;grid-template-columns:1fr 260px;grid-template-rows:1fr auto;gap:0;overflow:hidden}.preview-panel{grid-column:1;grid-row:1;display:flex;flex-direction:column;background:#000;min-height:0}.video-container{flex:1;display:flex;align-items:center;justify-content:center;position:relative;min-height:0;background:#000}#video{max-width:100%;max-height:100%;display:block}.preview-overlay{position:absolute;top:12px;left:12px;padding:4px 10px;background:#000000a6;border-radius:var(--radius-sm);font-size:.75rem;color:var(--text-muted);pointer-events:none}.playback-controls{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--bg-panel);border-top:1px solid var(--border);flex-shrink:0}.ctrl-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:14px;cursor:pointer;transition:background .15s}.ctrl-btn:hover{background:var(--bg-hover)}.time-display{font-family:var(--mono);font-size:.85rem;margin-left:8px;color:var(--text-muted)}.time-sep{margin:0 4px;opacity:.5}.preview-mode{margin-left:auto;display:flex;gap:16px;font-size:.8rem;color:var(--text-muted)}.preview-mode label{display:flex;align-items:center;gap:5px;cursor:pointer}.preview-mode input{accent-color:var(--accent)}.fragments-panel{grid-column:2;grid-row:1 / 3;background:var(--bg-panel);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden}.panel-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border);flex-shrink:0}.panel-header h3{font-size:.9rem;font-weight:600}.fragment-count{background:var(--bg-elevated);padding:2px 8px;border-radius:10px;font-size:.75rem;color:var(--text-muted)}.fragment-list{list-style:none;overflow-y:auto;flex:1;padding:8px}.fragment-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s;margin-bottom:4px;border:1px solid transparent}.fragment-item:hover{background:var(--bg-elevated)}.fragment-item.active{background:var(--bg-elevated);border-color:var(--accent);box-shadow:0 0 0 1px var(--accent-glow)}.fragment-color{width:4px;height:32px;border-radius:2px;flex-shrink:0}.fragment-info{flex:1;min-width:0}.fragment-name{font-size:.85rem;font-weight:500}.fragment-range{font-family:var(--mono);font-size:.7rem;color:var(--text-muted);margin-top:2px}.fragment-duration{font-family:var(--mono);font-size:.75rem;color:var(--text-muted);flex-shrink:0}.timeline-panel{grid-column:1;grid-row:2;background:var(--bg-panel);border-top:1px solid var(--border);padding:12px 16px 16px;flex-shrink:0}.timeline-toolbar{display:flex;align-items:center;gap:8px;margin-bottom:10px}.toolbar-spacer{flex:1}.toolbar-info{font-size:.8rem;color:var(--text-muted);font-family:var(--mono)}.timeline-wrapper{position:relative;margin-bottom:16px}.timeline-ruler{height:20px;position:relative;margin-bottom:4px;font-family:var(--mono);font-size:.65rem;color:var(--text-muted)}.ruler-tick{position:absolute;top:0;transform:translate(-50%);white-space:nowrap}.ruler-tick:after{content:"";display:block;width:1px;height:6px;background:var(--border);margin:2px auto 0}.timeline-track{position:relative;height:48px;background:var(--bg-deep);border-radius:var(--radius-sm);border:1px solid var(--border);cursor:pointer;overflow:hidden}.timeline-fragment{position:absolute;top:4px;bottom:4px;border-radius:4px;opacity:.85;cursor:pointer;transition:opacity .15s,box-shadow .15s;min-width:2px}.timeline-fragment:hover{opacity:1}.timeline-fragment.active{box-shadow:0 0 0 2px #fff;opacity:1;z-index:2}.playhead{position:absolute;top:0;bottom:0;width:2px;background:#fff;z-index:10;pointer-events:none;transform:translate(-50%)}.playhead:before{content:"";position:absolute;top:-4px;left:50%;transform:translate(-50%);border-left:6px solid transparent;border-right:6px solid transparent;border-top:8px solid #fff}.trim-panel h4{font-size:.8rem;font-weight:500;color:var(--text-muted);margin-bottom:8px}.trim-track{position:relative;height:40px;background:var(--bg-deep);border-radius:var(--radius-sm);border:1px solid var(--border);cursor:pointer;overflow:hidden}.trim-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:repeating-linear-gradient(90deg,var(--bg-elevated) 0px,var(--bg-elevated) 8px,var(--bg-deep) 8px,var(--bg-deep) 16px);opacity:.5}.trim-selection{position:absolute;top:0;bottom:0;background:var(--accent-glow);border-top:2px solid var(--accent);border-bottom:2px solid var(--accent);z-index:2}.trim-handle{position:absolute;top:0;bottom:0;width:12px;cursor:ew-resize;z-index:3}.trim-handle-left{left:-6px;background:linear-gradient(90deg,var(--accent) 4px,transparent 4px)}.trim-handle-right{right:-6px;background:linear-gradient(270deg,var(--accent) 4px,transparent 4px)}.trim-handle:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:3px;height:16px;background:var(--accent);border-radius:2px}.trim-playhead{position:absolute;top:0;bottom:0;width:2px;background:#fff;z-index:4;pointer-events:none;transform:translate(-50%)}.trim-labels{display:flex;justify-content:space-between;margin-top:6px;font-family:var(--mono);font-size:.7rem;color:var(--text-muted)}.modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:100}.modal-content{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:28px 32px;min-width:360px;text-align:center}.modal-content h3{margin-bottom:20px}.progress-bar{height:6px;background:var(--bg-deep);border-radius:3px;overflow:hidden;margin-bottom:12px}.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),#a78bfa);border-radius:3px;transition:width .3s}#export-status{font-size:.85rem;color:var(--text-muted);margin-bottom:16px}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media(max-width:900px){.editor{grid-template-columns:1fr;grid-template-rows:auto auto auto;overflow-y:auto}.fragments-panel{grid-column:1;grid-row:2;max-height:200px;border-left:none;border-top:1px solid var(--border)}.timeline-panel{grid-row:3}}