:root{--bg: #ffffff;--fg: #121212;--muted: #666;--panel: #f2f2f5;--accent: #4f46e5;--border: #ddd;--player-height: 60vh}body[data-theme=dark]{--bg: #0f1115;--fg: #e5e7eb;--muted: #9ca3af;--panel: #151922;--accent: #8b5cf6;--border: #232737}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--fg);font:14px/1.4 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}.app-header,.app-footer{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border);background:var(--panel)}.app-footer{border-top:1px solid var(--border);border-bottom:none}.spacer{flex:1}.btn{background:var(--panel);color:var(--fg);border:1px solid var(--border);padding:6px 10px;border-radius:6px;cursor:pointer}.btn.small{padding:4px 8px;font-size:12px}.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn:hover{filter:brightness(1.05)}.btn:active{transform:translateY(1px)}.file{display:inline-flex;gap:8px;align-items:center;cursor:pointer}.file input[type=file]{display:none}.layout{display:grid;grid-template-columns:320px 1fr 340px;height:calc(100vh - 96px)}.sidebar{overflow:auto;border-right:1px solid var(--border);padding:12px}.sidebar h2{margin:12px 0 6px;font-size:14px}.sidebar .row{display:flex;gap:8px;margin-bottom:8px}.sidebar input,.sidebar textarea{width:100%;background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:6px;padding:6px 8px}.section-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:12px;box-shadow:0 1px #00000008}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media (max-width: 900px){.form-grid{grid-template-columns:1fr}}.form-field label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.form-field input,.form-field textarea,.form-field select{width:100%;background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:8px;padding:8px 10px}.form-field textarea{resize:vertical}.form-field input:focus,.form-field textarea:focus,.form-field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 20%,transparent)}.list{list-style:none;padding:0;margin:8px 0}.list-item{padding:8px 10px;border:1px solid var(--border);border-radius:8px;margin:6px 0;cursor:pointer;background:transparent;display:flex;flex-direction:column;gap:2px}.list-item:hover{background:color-mix(in srgb,var(--accent) 8%,var(--panel))}.list-item.active{background:color-mix(in srgb,var(--accent) 12%,var(--panel));border-color:color-mix(in srgb,var(--accent) 40%,var(--border))}.workspace{display:flex;flex-direction:column}.player-bar{padding:10px;border-bottom:1px solid var(--border);background:var(--panel)}.player{width:100%;height:var(--player-height);background:#000;border-radius:8px}.controls{display:flex;gap:8px;margin-top:8px;align-items:center}#timecode{color:var(--muted)}.timeline{display:flex;flex-direction:column;gap:8px;padding:12px}.timeline-toolbar{display:flex;gap:8px;align-items:center}.dropzone{border:2px dashed var(--border);border-radius:10px;padding:10px 12px;color:var(--muted);min-width:240px;text-align:center}.dropzone.over{border-color:var(--accent);color:var(--fg);background:color-mix(in srgb,var(--accent) 10%,transparent)}.asset-dock{grid-column:3;grid-row:1;border-left:1px solid var(--border);background:var(--panel);display:flex;flex-direction:column;height:100%}.asset-dock-header{display:flex;align-items:center;justify-content:space-between;padding:8px 10px}.tabs{display:flex;gap:6px}.tab{border:1px solid var(--border);background:var(--bg);color:var(--fg);border-radius:999px;padding:4px 10px;cursor:pointer}.tab.active{background:var(--accent);color:#fff;border-color:var(--accent)}.asset-dropzone{border:2px dashed var(--border);border-radius:10px;margin:10px;padding:16px;color:var(--muted);text-align:center}.asset-dropzone.over{border-color:var(--accent);color:var(--fg);background:color-mix(in srgb,var(--accent) 10%,transparent)}.asset-list{display:flex;flex-direction:column;gap:8px;padding:8px 10px 10px;overflow:auto;height:100%}.asset-empty{color:var(--muted);padding:16px}.asset{display:flex;gap:8px;align-items:center;border:1px solid var(--border);background:var(--bg);border-radius:8px;padding:6px 8px;cursor:grab}.asset .thumb{width:48px;height:32px;border:1px solid var(--border);border-radius:6px;background:#000;display:flex;align-items:center;justify-content:center;overflow:hidden}.asset .thumb img{width:100%;height:100%;object-fit:cover}.asset .badge{font-size:10px;color:#fff;background:var(--accent);padding:2px 6px;border-radius:999px}.asset .meta .name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:360px}.asset .meta .type{font-size:12px;color:var(--muted)}@media (max-width: 1200px){.layout{grid-template-columns:280px 1fr 300px}}@media (max-width: 980px){.layout{grid-template-columns:1fr}.sidebar{display:none}.asset-dock{grid-column:1;grid-row:2;height:auto;border-left:none;border-top:1px solid var(--border)}}.tracks{position:relative;overflow:auto;border:1px solid var(--border);border-radius:8px}.track{display:grid;grid-template-columns:80px 1fr;align-items:stretch;min-height:60px}.track+.track{border-top:1px solid var(--border)}.track-label{padding:8px;color:var(--muted);border-right:1px solid var(--border)}.track-lane{position:relative;overflow:visible;min-height:60px}.clip{position:absolute;top:8px;height:44px;border:1px solid var(--border);border-radius:6px;background:#4f46e526;color:var(--fg);display:flex;align-items:center;padding:0 8px;gap:6px;cursor:move;-webkit-user-select:none;user-select:none}.clip.selected{outline:2px solid var(--accent)}.clip .handle{position:absolute;top:0;width:6px;height:100%;background:#0000000d;border-radius:6px;cursor:ew-resize}.clip .handle.left{left:0}.clip .handle.right{right:0}.clip.audio{background:#10b98126}.clip.image{background:#eab3082e}.clip .meta{font-size:12px;color:var(--muted)}#playhead{position:absolute;top:0;left:0;width:2px;height:100%;background:var(--accent);pointer-events:none}