:root{--bg:#f5f6f8;--surface:#fff;--border:#d9dce1;--text:#1c1f24;--text-muted:#6b7280;--accent:#2f6feb;--accent-contrast:#fff;--accent-bg:#2f6feb26;--error-bg:#fdeceb;--error-border:#e5534b;--error-text:#8a1f16;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font:14px/1.5 system-ui,Segoe UI,Roboto,sans-serif}:root[data-theme=dark]{--bg:#14161a;--surface:#1b1e24;--border:#2e333c;--text:#e6e8eb;--text-muted:#9aa1ac;--accent:#5b9dff;--accent-contrast:#0b1220;--accent-bg:#5b9dff2e;--error-bg:#3a1c1c;--error-border:#e5534b;--error-text:#ffb4ac;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}.app{flex-direction:column;gap:16px;max-width:1200px;min-height:100svh;margin:0 auto;padding:16px 20px 40px;display:flex}.site-header{align-items:center;gap:10px;margin-bottom:4px;display:flex}.site-header__brand{color:var(--accent);white-space:nowrap;font-size:15px;font-weight:700;text-decoration:none}.site-header__brand:hover{text-decoration:underline}.site-header__divider{color:var(--text-muted);font-weight:400}.site-header__title{color:var(--text-muted);white-space:nowrap;font-size:15px;font-weight:600}.toolbar-spacer{flex:1}.btn,.toggle-btn{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:6px;padding:6px 12px;font-size:13px}.btn:hover,.toggle-btn:hover{border-color:var(--accent)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--accent{border-color:var(--accent);background:var(--accent);color:var(--accent-contrast)}.btn--accent:hover{opacity:.9}.icon-btn{padding:6px 10px}.toolbar{background:var(--surface);border:1px solid var(--border);border-radius:8px;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 12px;display:flex}.toolbar__time{font-variant-numeric:tabular-nums;color:var(--text-muted);font-size:13px}.field{color:var(--text-muted);flex-direction:column;align-items:flex-start;gap:4px;font-size:13px;display:flex}.field input[type=text],.field textarea,.field select{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:6px;width:100%;padding:5px 8px;font-size:13px}.field input[type=range]{width:100%;accent-color:var(--accent)}.field--checkbox{cursor:pointer;flex-direction:row;align-items:center}.error-banner{background:var(--error-bg);border:1px solid var(--error-border);color:var(--error-text);border-radius:8px;justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;font-size:14px;display:flex}.error-banner__dismiss{color:inherit;cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:18px;line-height:1}.file-dropzone{border:1px dashed var(--border);text-align:center;color:var(--text-muted);cursor:pointer;border-radius:6px;padding:10px;font-size:12px}.file-dropzone:hover,.file-dropzone--active{border-color:var(--accent);color:var(--accent)}.empty-state{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:12px;min-height:320px;display:flex}.empty-state .file-dropzone{width:100%;max-width:480px;padding:48px 20px;font-size:15px}.empty-state__loading{color:var(--text-muted);font-size:13px}.panels{grid-template-columns:2fr 1fr;gap:16px;display:grid}.tracks-panel,.export-panel{grid-column:1/-1}.panel{background:var(--surface);border:1px solid var(--border);border-radius:8px;flex-direction:column;gap:10px;min-height:0;padding:12px;display:flex}.panel__header{justify-content:space-between;align-items:center;gap:10px;display:flex}.panel__title{color:var(--text-muted);margin:0;font-size:14px;font-weight:600}.preview-panel__frame{background:#000;border-radius:6px;justify-content:center;align-items:center;width:100%;max-height:480px;display:flex;overflow:hidden}.preview-panel__frame canvas{object-fit:contain;width:100%;height:100%;display:block}.inspector-panel__empty,.inspector-panel__name{color:var(--text-muted);margin:0;font-size:13px}.tracks-layout{align-items:stretch;gap:8px;display:flex}.tracks-labels{flex-direction:column;flex-shrink:0;width:96px;display:flex}.tracks-ruler-spacer{height:20px}.track-label{height:44px;color:var(--text-muted);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:4px;padding:0 6px;font-size:12px;display:flex}.track-label__remove{color:var(--text-muted);cursor:pointer;background:0 0;border:none;flex-shrink:0;font-size:13px;line-height:1}.track-label__remove:hover{color:var(--error-border)}.tracks-scroll{border:1px solid var(--border);background:var(--bg);border-radius:6px;flex:1;position:relative;overflow-x:auto}.tracks-ruler{cursor:pointer;border-bottom:1px solid var(--border);height:20px;position:relative}.tracks-playhead{background:var(--accent);pointer-events:none;width:2px;position:absolute;top:0;bottom:-10000px}.track-row{border-bottom:1px solid var(--border);height:44px;position:relative}.track-row--text{background:color-mix(in srgb, var(--accent) 6%, transparent)}.timeline-clip{background:var(--accent-bg);border:1px solid var(--accent);min-width:24px;color:var(--text);cursor:grab;touch-action:none;border-radius:4px;justify-content:space-between;align-items:center;gap:4px;padding:0 6px;font-size:12px;display:flex;position:absolute;top:6px;bottom:6px;overflow:hidden}.timeline-clip--active{border-width:2px}.timeline-clip__name{white-space:nowrap;text-overflow:ellipsis;pointer-events:none;overflow:hidden}.timeline-clip__remove{color:var(--text-muted);cursor:pointer;background:0 0;border:none;flex-shrink:0;font-size:14px;line-height:1}.timeline-clip__remove:hover{color:var(--error-border)}.timeline-clip__handle{cursor:ew-resize;touch-action:none;width:8px;position:absolute;top:0;bottom:0}.timeline-clip__handle--left{left:0}.timeline-clip__handle--right{right:0}.export-panel__actions{flex-wrap:wrap}.export-panel__progress{background:var(--border);border-radius:3px;height:6px;overflow:hidden}.export-panel__progress-bar{background:var(--accent);height:100%;transition:width .15s linear}@media (width<=900px){.panels{grid-template-columns:1fr}}@media (width<=1024px){:root{font-size:15px}}