:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0e0f13;--bg-raised:#16181f;--bg-inset:#0a0b0e;--border:#262a34;--border-strong:#343947;--text:#e8e8ea;--text-dim:#9aa0ad;--accent:#00aeef;--accent-strong:#33c3ff;--danger:#ff5c72;--radius:10px;font-family:system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box;margin:0}[hidden]{display:none!important}html,body{height:100%}body{background:var(--bg);color:var(--text);font-size:14px;overflow:hidden}#app{flex-direction:column;height:100vh;display:flex}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:none}button:disabled{opacity:.4;cursor:not-allowed}.topbar{border-bottom:1px solid var(--border);background:var(--bg-raised);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:10px 16px;display:flex}.brand{align-items:center;gap:10px;display:flex}.brand h1{letter-spacing:-.01em;font-size:15px;font-weight:650}.brand span{color:var(--text-dim);margin-top:1px;font-size:11.5px;display:block}.topbar-actions{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.field{color:var(--text-dim);align-items:center;gap:8px;font-size:12.5px;display:flex}select,input[type=number],input[type=text]{background:var(--bg-inset);color:var(--text);border:1px solid var(--border-strong);font:inherit;border-radius:7px;padding:6px 8px;font-size:13px}select:focus,input:focus{outline:2px solid color-mix(in srgb, var(--accent) 55%, transparent);outline-offset:1px}.export-group{gap:8px;display:flex}.btn{background:var(--bg-inset);border:1px solid var(--border-strong);border-radius:8px;padding:7px 13px;font-size:13px;font-weight:550;transition:border-color .15s,background .15s}.btn:not(:disabled):hover{border-color:var(--accent)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#04222f}.btn-primary:not(:disabled):hover{background:var(--accent-strong)}.btn-ghost{width:100%;color:var(--text-dim);border-style:dashed}.btn-ghost:not(:disabled):hover{color:var(--text)}.workspace{flex:1;min-height:0;display:flex}.panel{border-right:1px solid var(--border);background:var(--bg-raised);flex-direction:column;flex-shrink:0;gap:12px;width:296px;padding:14px;display:flex;overflow-y:auto}.card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:12px}.card h2{text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:10px;font-size:11px;font-weight:650}.dropzone{border:1.5px dashed var(--border-strong);border-radius:var(--radius);text-align:center;cursor:pointer;padding:18px 12px;transition:border-color .15s,background .15s}.dropzone:hover,.dropzone.dragging{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 6%, transparent)}.dropzone p{font-size:13px}.dropzone .hint{color:var(--text-dim);margin-top:4px;font-size:11.5px}.dropzone .hint.error{color:var(--danger)}.link-btn{color:var(--accent);margin-top:8px;font-size:12px}.link-btn:hover{text-decoration:underline}.file-meta{flex-direction:column;gap:2px;margin-top:10px;font-size:12px;display:flex}.file-meta span{color:var(--text-dim)}.slider-row{align-items:center;gap:10px;margin-top:8px;display:flex}.slider-row:first-of-type{margin-top:0}.slider-label{color:var(--text-dim);flex-shrink:0;width:44px;font-size:12px}.slider-val{font-variant-numeric:tabular-nums;color:var(--text);text-align:right;min-width:48px;font-size:12px}input[type=range]{appearance:none;background:var(--border-strong);border-radius:2px;flex:1;min-width:0;height:4px}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--accent);cursor:grab;border:2px solid #04222f;border-radius:50%;width:14px;height:14px}input[type=range]::-moz-range-thumb{background:var(--accent);cursor:grab;border:2px solid #04222f;border-radius:50%;width:12px;height:12px}input[type=number]{width:76px}.channel{border:1px solid var(--border);border-radius:8px;margin-bottom:8px;padding:9px;transition:opacity .15s}.channel.is-muted{opacity:.5}.channel-head{align-items:center;gap:7px;margin-bottom:8px;display:flex}.swatch{cursor:pointer;flex-shrink:0;width:22px;height:22px;position:relative}.swatch input{opacity:0;cursor:pointer;position:absolute;inset:0}.swatch span{pointer-events:none;border:1px solid #ffffff2e;border-radius:6px;position:absolute;inset:0}.channel-name{background:0 0;border-color:#0000;flex:1;min-width:0;padding:4px 6px;font-size:12.5px}.channel-name:hover,.channel-name:focus{border-color:var(--border-strong);background:var(--bg-inset)}.chip{text-transform:uppercase;letter-spacing:.04em;border:1px solid var(--border-strong);color:var(--text-dim);border-radius:6px;flex-shrink:0;padding:3px 7px;font-size:10.5px;font-weight:650}.chip:hover:not(:disabled){color:var(--text);border-color:var(--text-dim)}.solo-btn.is-active{color:#221c00;background:#ffd400;border-color:#ffd400}.eye-btn.is-on{color:var(--accent);border-color:color-mix(in srgb, var(--accent) 50%, transparent)}.remove-btn{padding:3px 6px}.remove-btn:hover:not(:disabled){color:var(--danger);border-color:var(--danger)}.stat-row{color:var(--text-dim);grid-template-columns:14px 1fr auto;align-items:center;gap:7px;padding:3px 0;font-size:12px;display:grid}.stat-row .dot{border:1px solid #fff3;border-radius:50%;width:10px;height:10px}.stat-row.total{border-top:1px solid var(--border);color:var(--text);margin-top:4px;padding-top:7px;font-weight:600}.viewer{flex-direction:column;flex:1;min-width:0;display:flex;position:relative}.viewer-toolbar{border-bottom:1px solid var(--border);align-items:center;gap:14px;padding:8px 14px;display:flex}.seg{border:1px solid var(--border-strong);border-radius:8px;display:flex;overflow:hidden}.seg button{color:var(--text-dim);padding:5px 12px;font-size:12.5px}.seg button+button{border-left:1px solid var(--border-strong)}.seg button.active{background:var(--accent);color:#04222f;font-weight:600}.solo-indicator{color:#221c00;background:#ffd400;border-radius:999px;padding:3px 9px;font-size:11.5px;font-weight:650}.busy{color:var(--text-dim);align-items:center;gap:7px;margin-left:auto;font-size:12px;display:inline-flex}.pulse{background:var(--accent);border-radius:50%;width:8px;height:8px;animation:1s ease-in-out infinite pulse}@keyframes pulse{50%{opacity:.25;transform:scale(.8)}}.stage{flex:1;min-height:0;position:relative}.stage.side{display:flex}.stage.side .pane{flex:1;min-width:0}.stage.side .pane+.pane{border-left:1px solid var(--border)}.stage.split .pane{position:absolute;inset:0}.stage.split #pane-composite{z-index:2}.pane{background:repeating-conic-gradient(#14161c 0% 25%,#101218 0% 50%) 0 0/22px 22px;flex-direction:column;justify-content:center;align-items:center;padding:12px;display:flex;position:relative;overflow:hidden}.pane canvas{background:#fff;border-radius:2px;box-shadow:0 4px 28px #0000008c}.pane-label{z-index:3;text-transform:uppercase;letter-spacing:.07em;color:var(--text-dim);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0a0b0eb3;border-radius:6px;padding:3px 8px;font-size:11px;font-weight:650;position:absolute;top:8px;left:10px}.split-handle{z-index:4;cursor:ew-resize;touch-action:none;justify-content:center;align-items:center;width:22px;margin-left:-11px;display:flex;position:absolute;top:0;bottom:0}.split-handle:before{content:"";background:var(--accent);width:2px;margin-left:-1px;position:absolute;top:0;bottom:0;left:50%;box-shadow:0 0 8px #00aeef99}.split-handle span{background:var(--accent);z-index:1;border-radius:8px;width:18px;height:34px;position:relative}.split-handle span:before{content:"⋮";color:#04222f;place-items:center;font-weight:700;display:grid;position:absolute;inset:0}.empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:24px;display:flex;position:absolute;inset:42px 0 0}.empty-state h2{font-size:19px;font-weight:650}.empty-state p{max-width:400px;color:var(--text-dim);font-size:13.5px;line-height:1.55}@media (width<=860px){body{overflow:auto}#app{height:auto;min-height:100vh}.workspace{flex-direction:column}.panel{border-right:none;border-bottom:1px solid var(--border);width:100%}.viewer{min-height:70vh}.stage.side{flex-direction:column}.stage.side .pane+.pane{border-left:none;border-top:1px solid var(--border)}}