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/* Cabinet school pass: a readable operator-manual rhythm with compact motion media. */
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.lesson:target{border-left-color:var(--gold);box-shadow:0 0 0 4px #ffcb7166}
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.demo-details>summary{display:flex;align-items:center;justify-content:space-between;gap:1rem;background:#e4ebe4}
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.frames{grid-template-columns:repeat(4,minmax(0,1fr));gap:.65rem}
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.source-demos{display:inline-grid!important;vertical-align:top;width:min(300px,100%);grid-template-columns:1fr!important;margin:1rem .7rem 1.2rem 0!important}
.source-demos--wide{display:grid!important;width:min(520px,100%)}
.source-demo{border-radius:3px!important;background:#f4f0e7!important;box-shadow:0 2px 0 #d9d8cf}
.source-demo video{width:100%;max-height:300px;aspect-ratio:1!important;object-fit:contain!important;background:#061b29!important}
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.source-demo figcaption strong{font-size:.95rem!important}.source-demo figcaption a{font-size:.72rem!important}
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.related-demo-block{clear:both;max-width:68rem;border-radius:2px!important}
@media(max-width:900px){.frames{grid-template-columns:repeat(2,minmax(0,1fr))}.course-dock{padding-inline:1rem}}
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.lab-ref{display:flex;align-items:baseline;gap:.75rem;flex-wrap:wrap;margin:.25rem 0 1rem;padding:.7rem .9rem;border-left:4px solid #dc6b2f;background:#fff5e7}.lab-ref a{font-weight:900;color:#8d3214}.lab-ref span{font-size:.86rem;color:#45545b}.lab-banner{background:#112a38;color:#f4efe4}.lab-banner .chapter-title p,.lab-banner article p,.lab-banner li{color:#d7e3e5}.lab-banner article{background:#183848;border-color:#416878}.lab-banner a:not(.button){color:#ffbf77}.lab-banner code{color:#fff}