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.fem-3d{background:white;border:1px solid #d4dfed;border-radius:12px;padding:14px;margin:14px 0 20px}.demo-controls{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:12px 0}.demo-controls label{font-size:11px;display:flex;gap:7px;align-items:center}.demo-controls input{width:90px}.demo-steps{display:flex;gap:5px;margin-bottom:10px}.demo-steps button{flex:1}.demo-steps button[aria-pressed=true]{background:#244f79;color:white}.demo-layout{display:grid;grid-template-columns:1.5fr 1fr;border:1px solid #dbe3ee;border-radius:10px;overflow:hidden}#fem-scene{position:relative;min-height:390px;touch-action:none;background:#0b1d31}#fem-scene canvas{display:block;width:100%;height:100%}#fem-scene>span{position:absolute;top:12px;left:14px;font-size:10px;color:#bfd1e6;pointer-events:none}#demo-error{position:absolute;top:60px;left:20px;color:white}.demo-layout aside{padding:15px;min-width:0}.demo-layout h3{margin:0 0 6px;font-size:15px}#demo-description{font-size:12px;min-height:58px;margin:0 0 10px}#demo-values{font:11px/1.8 ui-monospace,monospace;background:#eef4fb;border-radius:6px;padding:9px;white-space:pre-line;min-height:118px}#demo-matrix{height:155px}.demo-note,#demo-caption{font-size:10px;color:#627b94}#demo-caption{margin-top:10px}@media(max-width:700px){.demo-layout{grid-template-columns:1fr}#fem-scene{height:320px;min-height:320px}.demo-steps button{font-size:10px;padding:7px 4px}}