: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-family: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);align-items:center;gap:6px;font-size:13px;display:flex}.field select{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:6px;padding:5px 8px;font-size:13px}.field--checkbox{cursor:pointer}.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{flex-direction:column;gap:16px;display:flex}.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}.waveform-panel__selection{color:var(--text-muted);font-variant-numeric:tabular-nums;font-size:12px}.waveform-panel__hint{color:var(--text-muted);margin:0;font-size:12px}.waveform-canvas-container{border:1px solid var(--border);background:var(--bg);border-radius:6px;width:100%;height:160px;position:relative;overflow:hidden}.waveform-canvas{touch-action:none;cursor:crosshair;width:100%;height:100%;display:block}.waveform-canvas-empty{color:var(--text-muted);pointer-events:none;justify-content:center;align-items:center;font-size:13px;display:flex;position:absolute;inset:0}.effects-panel__structural,.effects-panel__normalize,.export-panel__format,.export-panel__actions{flex-wrap:wrap}.slider-row{color:var(--text-muted);flex-direction:column;gap:4px;font-size:13px;display:flex}.slider-row input[type=range]{width:100%;accent-color:var(--accent)}.timeline-track{border:1px solid var(--border);background:var(--bg);border-radius:6px;width:100%;height:56px;position:relative;overflow-x:auto}.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:8px;bottom:8px;overflow:hidden}.timeline-clip--active{border-width:2px}.timeline-clip__name{white-space:nowrap;text-overflow:ellipsis;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)}@media (width<=1024px){:root{font-size:15px}}