:root{font-family:system-ui,sans-serif;color:#19354a;background:#f4f3ee}body{margin:0}header{display:flex;justify-content:space-between;padding:24px;border-bottom:1px solid #ccd2cc}main{max-width:1100px;margin:auto;padding:24px}h1{font-size:clamp(28px,5vw,46px)}#lobby{max-width:580px}label{display:block;margin:16px 0}input,select,button{font:inherit;padding:12px;border-radius:8px;border:1px solid #8a9b9b}input:not([type=checkbox]){display:block;width:90%;margin-top:8px}button{background:#19354a;color:white;cursor:pointer}button:disabled{opacity:.5}details{margin-top:24px}nav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}#tracks{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:12px}figure{margin:0;background:#142933;border-radius:12px;overflow:hidden;color:white}video{width:100%;max-height:65vh;background:#142933}figcaption{padding:10px}#links a{display:block;overflow-wrap:anywhere;margin:12px 0}#status{padding:14px;background:#e0e9e2;border-radius:8px}[hidden]{display:none!important}
#tracks{display:block;position:relative;min-width:0;min-height:0}
#camera-panel,#camera-tracks,#screen-tracks{min-width:0;min-height:0}
#camera-tracks,#screen-tracks{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:12px}
#screen-tracks:empty{display:none}
#tracks.presenting{display:grid;grid-template-columns:minmax(0,1fr) var(--camera-width,260px);gap:12px;align-items:stretch}
#tracks.presenting.no-cameras{grid-template-columns:minmax(0,1fr)}
.presenting #screen-tracks{grid-template-columns:1fr}
.presenting #screen-tracks video{display:block;width:100%;height:65vh;max-height:none;object-fit:contain}
#camera-panel{position:relative}
.presenting #camera-tracks{grid-template-columns:1fr;gap:8px}
.presenting #camera-tracks video{display:block;width:100%;aspect-ratio:16/9;object-fit:contain}
#camera-tools{position:absolute;left:-12px;top:0;bottom:0;width:12px;z-index:2}
#camera-handle{height:100%;width:100%;display:flex;align-items:center;justify-content:center;cursor:col-resize;touch-action:none;user-select:none}
#camera-handle::before{content:"";width:4px;height:48px;border-radius:3px;background:#80949d}
#camera-handle:hover::before,#camera-handle:focus-visible::before{background:#f4ce7b}
.camera-resize{display:none}
.presenting .camera-resize{display:block;position:absolute;bottom:0;width:24px;height:24px;padding:0;border:0;border-radius:0;background:#19354a;color:white;z-index:3;touch-action:none}
#camera-resize-right{right:0;cursor:nwse-resize;border-radius:0 0 10px 0}
#camera-resize-left{left:0;cursor:nesw-resize;border-radius:0 0 0 10px}
.camera-resize::after{content:"";position:absolute;width:10px;height:10px;bottom:5px;right:5px;border-right:2px solid #b7c6cb;border-bottom:2px solid #b7c6cb}
#camera-resize-left::after{right:auto;left:5px;border-right:0;border-left:2px solid #b7c6cb}
.camera-resize:focus-visible,#camera-handle:focus-visible{outline:3px solid #f4ce7b;outline-offset:2px}
body.in-call{overflow:hidden;background:#0b151d}
.in-call>header,.in-call #lobby,.in-call #sharing{display:none!important}
.in-call #call{position:fixed;inset:0;z-index:10;background:#0b151d;padding:12px;box-sizing:border-box;display:flex;flex-direction:column}
.in-call #tracks{height:100%;width:100%;flex:1;min-height:0}
.in-call #camera-panel,.in-call #camera-tracks,.in-call #screen-tracks{height:100%}
.in-call #camera-tracks{grid-auto-rows:minmax(0,1fr);align-items:stretch}
.in-call #tracks:not(.presenting) #camera-tracks{grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:8px}
.in-call #tracks.presenting #camera-tracks{grid-template-columns:1fr;grid-auto-rows:minmax(0,1fr)}
.in-call figure{display:flex;flex-direction:column;min-width:0;min-height:0;overflow:hidden;border-radius:8px}
.in-call figure video{display:block;width:100%;height:0;flex:1;min-height:0;max-height:none;object-fit:contain;aspect-ratio:auto}
.in-call #screen-tracks figcaption{display:none}
.in-call #camera-tracks figcaption{font-size:12px;padding:6px 28px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.in-call #call>p{display:none}
.in-call #call>nav{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);z-index:20;padding:10px;background:#0b151de8;border-radius:14px;max-width:calc(100% - 32px);width:max-content;justify-content:center;opacity:0;pointer-events:none;transition:opacity .15s}
.in-call.call-controls #call>nav,.in-call #call>nav:focus-within{opacity:1;pointer-events:auto}
.in-call #status{position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:21;max-width:80vw;margin:0;font-size:13px;opacity:0;pointer-events:none}
.in-call.call-controls #status{opacity:1}
.in-call #audio{position:absolute;top:16px;right:16px;z-index:22}
@media(max-width:600px){.in-call #call{padding:6px}#tracks.presenting{gap:10px}.in-call #call>nav button{font-size:12px;padding:9px}.in-call #camera-tracks figcaption{padding:5px 20px;font-size:11px}}

#tracks.presenting.cameras-left{grid-template-columns:var(--camera-width,320px) minmax(0,1fr)}
.presenting.cameras-left #camera-panel{grid-column:1;grid-row:1}
.presenting.cameras-left #screen-tracks{grid-column:2;grid-row:1}
.presenting.cameras-left #camera-tools{left:auto;right:-12px}
#tracks.presenting.cameras-left.no-cameras{grid-template-columns:minmax(0,1fr)}
.presenting.cameras-left.no-cameras #screen-tracks{grid-column:1}
.in-call #camera-tracks figure video{object-fit:cover}
#camera-side{font-size:20px;line-height:1}

.in-call #tracks:not(.presenting) #camera-tracks figcaption{display:none}

.presenting #camera-tracks{cursor:grab;touch-action:none;user-select:none}
.presenting #camera-tracks video{pointer-events:none}
.presenting.docking #camera-tracks{cursor:grabbing;opacity:.8}
.presenting.docking::after{content:"";position:absolute;top:0;bottom:0;width:5px;background:#f4ce7b;border-radius:4px;pointer-events:none;z-index:4}
.presenting.dock-left::after{left:0}.presenting.dock-right::after{right:0}

.in-call #camera-tracks figure{position:relative}
.in-call .presenting #camera-tracks figcaption{position:absolute;bottom:7px;left:8px;right:8px;padding:0 18px;background:transparent;color:#fff;text-shadow:0 1px 3px #000,0 0 6px #000;font-size:12px;pointer-events:none}
.presenting .camera-resize{background:transparent}

.in-call #screen-tracks figure video{object-fit:cover}
.in-call #tracks:not(.presenting) #camera-tracks{position:relative;cursor:grab;touch-action:none;user-select:none}
.in-call #tracks:not(.presenting) #camera-tracks video{pointer-events:none}
.in-call #tracks:not(.presenting) #camera-tracks.camera-focus{display:block}
.in-call #tracks:not(.presenting) .camera-focus>figure{position:absolute;inset:0;width:100%;height:100%}
.in-call #tracks:not(.presenting) .camera-focus>figure.mini-camera{inset:12px 12px auto auto;width:clamp(160px,25%,320px);max-width:45%;height:auto;aspect-ratio:16/9;z-index:5;box-shadow:0 3px 18px #0008}
.in-call #tracks:not(.presenting) .camera-focus.mini-left>figure.mini-camera{left:12px;right:auto}
.in-call #tracks:not(.presenting) .camera-focus.mini-bottom>figure.mini-camera{top:auto;bottom:12px}
#tracks:not(.presenting).docking::after{content:"";position:absolute;top:0;bottom:0;width:5px;background:#f4ce7b;pointer-events:none;z-index:6}
#tracks:not(.presenting).dock-left::after{left:0}#tracks:not(.presenting).dock-right::after{right:0}

.in-call #tracks:not(.presenting) #camera-tracks.camera-split-view{grid-template-columns:minmax(0,calc(var(--camera-split,50%) - 4px)) minmax(0,1fr)}
#camera-split{position:absolute;top:0;bottom:0;left:var(--camera-split,50%);transform:translateX(-50%);width:16px;z-index:7;cursor:col-resize;touch-action:none;display:flex;align-items:center;justify-content:center}
#camera-split::before{content:"";width:4px;height:48px;border-radius:3px;background:#80949d}
#camera-split:hover::before,#camera-split:focus-visible::before{background:#f4ce7b}
#camera-split:focus-visible{outline:2px solid #f4ce7b;outline-offset:-3px}