:root{--bg:#090b10;--panel:#141821;--line:#2a3040;--accent:#775cff;--text:#fff;--muted:#9ca5b5;--side:82px}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}button,input,select{font:inherit}.app{height:100dvh;max-width:520px;margin:auto;padding:6px 10px max(6px,env(safe-area-inset-bottom));display:grid;grid-template-rows:48px 36px minmax(245px,1.5fr) 44px 48px minmax(220px,1fr);gap:5px}.topbar{display:grid;grid-template-columns:48px 1fr auto;align-items:center}.iconBtn{border:0;background:none;color:#fff;font-size:38px;text-align:left}.title{font-size:18px;font-weight:900}.title span{font-size:11px;color:var(--muted)}.topRight{display:flex;align-items:center;gap:12px}.nextBtn{border:0;border-radius:12px;padding:10px 14px;font-weight:900}.layoutbar{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.layoutbar button{border:1px solid var(--line);border-radius:999px;background:#1b202b;color:#fff;font-size:10px;font-weight:900}.layoutbar button.on{background:#fff;color:#111}.viewerArea{position:relative;display:flex;justify-content:center;min-height:0}.viewer{height:100%;aspect-ratio:9/16;background:#000;border-radius:12px;overflow:hidden;display:grid;gap:0}.viewer.raster.count-1{grid-template:1fr/1fr}.viewer.raster.count-2{grid-template:1fr/repeat(2,1fr)}.viewer.raster.count-3{grid-template:repeat(2,1fr)/repeat(2,1fr)}.viewer.raster.count-3 .cell:first-child{grid-row:1/-1}.viewer.raster.count-4{grid-template:repeat(2,1fr)/repeat(2,1fr)}.viewer.raster.count-5,.viewer.raster.count-6{grid-template:repeat(3,1fr)/repeat(2,1fr)}.viewer.split{grid-template:1fr/repeat(2,1fr)}.viewer.solo{grid-template:1fr/1fr}.viewer.pip{display:block;position:relative}.cell{position:relative;overflow:hidden;background:#000}.viewer.solo .cell:not(.selected),.viewer.split .cell:nth-child(n+3){display:none}.viewer.pip .cell{position:absolute;inset:0}.viewer.pip .cell:not(.selected){inset:auto 4% 4% auto;width:34%;height:25%;border:2px solid #fff;border-radius:8px;z-index:4}.viewer.pip .cell:nth-child(n+3){display:none}.cell.selected:after{content:"";position:absolute;inset:0;border:2px solid var(--accent);pointer-events:none}.cell video{width:100%;height:100%;display:block;object-fit:cover;transform:scaleX(-1)}.label{position:absolute;left:6px;top:6px;padding:3px 6px;background:#000a;border-radius:7px;font-size:9px;font-weight:900}.empty{position:absolute;inset:0;display:grid;place-items:center;color:#343949;font-weight:900}.permission{position:absolute;right:5px;top:5px;border:1px solid var(--line);background:#111722dd;color:#bbb;border-radius:999px;padding:5px 9px;font-size:8px}.countIn{position:absolute;inset:0;display:grid;place-items:center;font-size:min(35vw,150px);font-weight:1000;text-shadow:0 4px 25px #000;color:#fff;pointer-events:none}.transport{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.transport button{border:1px solid var(--line);border-radius:11px;background:#171b24;color:#fff;font-size:11px;font-weight:950}.transport .record{background:#4a1723}.transport .active{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.transport .recording{background:#c61d42;animation:pulse .8s infinite alternate}.transport .queued{background:#8f6120}.settings{display:grid;grid-template-columns:52px repeat(4,1fr);gap:5px}.settings>*{border-radius:9px;background:var(--panel);border:0}.counter{display:grid;place-items:center;font-size:17px;font-weight:950}.settings label{padding:5px 7px;color:var(--muted);font-size:7px;font-weight:900}.settings input,.settings select{display:block;width:100%;border:0;background:transparent;color:#fff;font-size:12px;font-weight:900;outline:0}.timeline{position:relative;min-height:0;margin:0 -10px;background:#0d1016;overflow:hidden}.tracks{height:100%;display:grid;grid-template-rows:repeat(var(--track-count,6),1fr)}.track{display:grid;grid-template-columns:var(--side) 1fr;border-bottom:1px solid #242936}.track.selected{outline:1px solid var(--accent);outline-offset:-1px}.trackSide{padding:3px 5px;background:#13171e;border-right:1px solid #242936;display:grid;grid-template-columns:22px 22px 24px;grid-template-rows:auto 1fr;gap:4px}.trackName{grid-column:1/-1;font-size:8px;font-weight:950}.trackSide button{border:0;border-radius:5px;background:#252b36;color:#ddd;font-size:8px;font-weight:900}.trackSide button.on{background:var(--accent);color:#fff}.lane{position:relative;background:linear-gradient(90deg,transparent 24.8%,#202631 25%,transparent 25.2%,transparent 49.8%,#202631 50%,transparent 50.2%,transparent 74.8%,#202631 75%,transparent 75.2%)}.clip{position:absolute;inset:2px;display:none;border-radius:3px;overflow:hidden;background:linear-gradient(135deg,#5b43d5,#927cff)}.clip.show{display:block}.clip video{width:100%;height:100%;object-fit:cover;opacity:.55;transform:scaleX(-1)}.clip span{position:absolute;left:5px;top:3px;font-size:8px;font-weight:900}.playhead{position:absolute;top:0;bottom:0;left:var(--side);width:2px;background:#fff}.playhead:before{content:"";position:absolute;left:-3px;top:0;width:8px;height:8px;border-radius:50%;background:#fff}.toast{position:fixed;left:50%;bottom:22px;transform:translate(-50%,20px);opacity:0;background:#fff;color:#111;padding:8px 12px;border-radius:999px;font-size:10px;font-weight:900;transition:.2s;z-index:20}.toast.show{opacity:1;transform:translate(-50%,0)}@keyframes pulse{to{filter:brightness(1.6)}}
@media(max-height:760px){.app{grid-template-rows:44px 34px minmax(210px,1.35fr) 40px 44px minmax(205px,1fr)}.settings{grid-template-columns:48px repeat(4,1fr)}}
.engineStatus{height:20px;display:flex;align-items:center;justify-content:center;font-size:8px;font-weight:1000;letter-spacing:.12em;color:#aeb6c7}.engineStatus.queued{color:#f1bd62}.engineStatus.recording{color:#ff4f72}.engineStatus.playing{color:#7fdf9e}
.app{grid-template-rows:48px 36px minmax(225px,1.45fr) 20px 44px 48px minmax(210px,1fr)}

.cell{touch-action:none}.volumeHUD{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.9);padding:8px 12px;border-radius:999px;background:#000c;color:#fff;font-size:13px;font-weight:950;opacity:0;pointer-events:none;transition:.15s;z-index:8}.volumeHUD.show{opacity:1;transform:translate(-50%,-50%) scale(1)}