.learning-module{min-width:0}
.learning-module select{min-width:0;width:100%}
.learning-actions{gap:8px;align-items:start}
.teacher-duty b{display:block;margin-bottom:3px;font-size:12px;color:#315969}

.demo-catalog{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.demo-catalog-card{display:flex;flex-direction:column;gap:10px;border-top:2px solid var(--exp-edge)}
.demo-catalog-card h2{font-size:19px;line-height:1.44}
.demo-catalog-foot{display:flex;justify-content:space-between;flex-wrap:wrap;align-items:center;gap:8px;margin-top:auto;padding-top:12px;border-top:1px solid var(--border)}
.lab-demo{--demo-gap:15px}
.lab-demo>.wrap{gap:var(--demo-gap)}
.demo-heading{background:linear-gradient(100deg,#f9fbfc,var(--exp-wash));border:1px solid var(--exp-line);border-radius:14px;padding:clamp(13px,2vw,24px)}
.demo-heading h1{font-size:clamp(24px,3.4vw,42px);margin:.3em 0 .15em;line-height:1.25}
.demo-heading-links{margin-top:12px}
.demo-overview,.demo-scene-layout{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(265px,1fr);gap:var(--demo-gap);align-items:start}
.demo-overview{grid-template-columns:minmax(0,1.2fr) minmax(300px,1fr)}
.demo-outline,.demo-ops{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.demo-outline li{display:flex;align-items:baseline;gap:10px;padding:6px 9px;border-bottom:1px solid var(--border);font-size:13px}
.demo-outline li span,.demo-ops li>span{font-size:11px;color:var(--exp-ink);font-weight:700;font-variant-numeric:tabular-nums}
.demo-transport{padding:14px 16px;display:grid;gap:8px;border-color:var(--exp-line);background:#fcfefe;position:sticky;top:8px;z-index:4;scroll-margin-top:8px}
.demo-transport-head{align-items:center;gap:10px}
.demo-transport h2{font-size:clamp(18px,2.4vw,24px);margin-top:3px}
.demo-transport p{font-size:13px;line-height:1.55;color:#3a5a70;margin:0}
.demo-player-controls{justify-content:flex-end}
.demo-progress{appearance:none;width:100%;height:5px;display:block;border:0;border-radius:999px;overflow:hidden;background:#e6eef1;color:var(--exp-ink)}
.demo-progress::-webkit-progress-bar{background:#e6eef1}
.demo-progress::-webkit-progress-value{background:var(--exp-ink)}
.demo-progress::-moz-progress-bar{background:var(--exp-ink)}
.demo-segments{display:flex;gap:5px;overflow:auto;padding:4px 3px;scrollbar-color:#b2c7d0 transparent;scrollbar-width:thin}
.demo-segments .demo-segment{min-width:34px;flex:none;min-height:31px;justify-content:center;padding:4px 7px;font-size:11px;font-variant-numeric:tabular-nums}
.demo-segment.current{background:var(--exp-wash);border-color:var(--exp-edge);color:var(--exp-ink);box-shadow:inset 0 -2px var(--exp-ink)}
.demo-scene-layout>*,.demo-overview>*{min-width:0}
.demo-scene-card,.demo-data{min-width:0}
.demo-scene-card .gv-node.demo-node{cursor:default;pointer-events:none}
.demo-scene-card .demo-node-selected{border:1px solid var(--exp-edge);background:rgba(255,255,255,.24)}
.demo-scene-card .demo-node-selected span{background:var(--exp-wash);color:var(--exp-ink);border-color:var(--exp-edge)}
.demo-scene-card .pv-hotspot,.demo-scene-card .pv-pin{cursor:default;pointer-events:none}
.demo-device{display:grid;gap:3px;border-left:3px solid var(--exp-edge);padding:7px 9px;background:var(--exp-wash);border-radius:4px 7px 7px 4px}
.demo-device span{font-size:10px;font-weight:700;color:var(--exp-ink)}
.demo-device b{font-size:13px}
.demo-operations .metas{grid-template-columns:minmax(92px,.75fr) minmax(0,1fr);font-size:13px}
.demo-ops li{display:grid;grid-template-columns:20px minmax(0,1fr);gap:5px;padding:7px 8px;border:1px solid var(--border);background:#f6f9fb;border-radius:7px;line-height:1.38;font-size:13px}
.demo-ops li small{display:block;color:#3d5d70;margin:3px 0;line-height:1.5;overflow-wrap:anywhere}
.demo-ops li p{margin:3px 0 0}
.demo-ops li.demo-op-observe{background:#fcf7eb;border-color:#e7d9b7}
.demo-hint{background:#f8f9fe;border-color:#dadff0}
.demo-hint .row-icons>.icon{color:#625d9a}
.demo-hint p{font-size:13px;line-height:1.6}
.demo-result ul{padding-left:1.2em;margin:0;display:grid;gap:5px}
.demo-report-sheet .report-paper{max-width:none}
.demo-paused :is(.gv-pulse,.gv-rotor,.pv-flow){animation-play-state:paused!important}
@media(max-width:950px){.demo-catalog{grid-template-columns:repeat(2,minmax(0,1fr))}.demo-scene-layout{grid-template-columns:minmax(0,1fr)}.demo-operations{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;display:grid}}
@media(max-width:690px){.demo-overview,.demo-operations{grid-template-columns:minmax(0,1fr)}.demo-transport{position:static;padding:10px}.demo-player-controls{justify-content:flex-start}.demo-transport-head{flex-wrap:wrap}.demo-transport .btn{min-height:34px}.demo-heading h1{overflow-wrap:anywhere}}
@media(max-width:520px){.demo-catalog{grid-template-columns:minmax(0,1fr)}}
@media print{.demo-heading,.demo-transport,.demo-result{display:none!important}}