/* Shared geometry/controls layout; each lab retains its colours and model. */
body:has([data-demo-layout]) { padding: 8px; }
main[data-demo-layout] { width: 100%; max-width: 1300px; padding: 12px; margin: 0 auto; container-type: inline-size; }
[data-demo-layout] h1 { font-size: 1.2rem; line-height: 1.4; margin: 0 0 8px; }
[data-demo-layout] header { display: block; margin: 0 0 10px; }
[data-demo-layout] #problem { margin: 8px 0 12px; line-height: 1.5; }
[data-demo-layout] .demo-workspace { display: grid; grid-template-columns: minmax(0,1fr); gap: 12px; align-items: start; }
[data-demo-layout] .demo-figure { min-width: 0; margin: 0; padding: 8px; background: var(--panel,var(--bg,var(--surface))); border: 1px solid var(--line); border-radius: 12px; }
[data-demo-layout] #plot { display: block; width: 100%; height: var(--demo-plot-height,260px); min-height: 0; max-height: none; aspect-ratio: auto; border: 0; border-radius: 6px; touch-action: pan-y; }
[data-demo-layout] #plot text { font-size: calc(14px * var(--demo-label-scale,1)); }
[data-demo-layout] .legend { margin: 6px 0 0; gap: 4px 12px; font-size: .8rem; justify-content: center; line-height: 1.5; }
[data-demo-layout] #view-note { min-height: 0; margin: 4px 0 0; font-size: .8rem; }
[data-demo-layout] .demo-panel { min-width: 0; display: flex; flex-direction: column; gap: 10px; }
[data-demo-layout] .demo-readings { min-width: 0; display: grid; gap: 7px; }
[data-demo-layout] .demo-inputs { min-width: 0; display: grid; gap: 8px; }
[data-demo-layout] .demo-readings .readouts,
[data-demo-layout] .demo-readings .metrics:not(dl) { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 6px; margin: 0; }
[data-demo-layout] .metric { margin: 0; padding: 7px 9px; min-height: 0; border-radius: 8px; }
[data-demo-layout] .metric h2, [data-demo-layout] .metric small { font-size: .82rem; margin: 0 0 2px; line-height: 1.4; }
[data-demo-layout] .metric output, [data-demo-layout] .metric b { font-size: 1rem; line-height: 1.4; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
[data-demo-layout] .metric p { margin: 2px 0 0; font-size: .78rem; line-height: 1.4; }
[data-demo-layout] .demo-readings dl { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 4px 10px; margin: 0; font-size: .9rem; }
[data-demo-layout] .demo-readings dt, [data-demo-layout] .demo-readings dd { margin: 0; overflow-wrap: anywhere; }
[data-demo-layout] .demo-readings dd { text-align: right; font-weight: 650; font-variant-numeric: tabular-nums; }
[data-demo-layout] .demo-readings .formula, [data-demo-layout] .demo-readings #formula { margin: 0; min-height: 0; padding: 7px; max-width: 100%; overflow-x: auto; white-space: normal; font-size: .95rem; }
[data-demo-layout] .demo-readings .katex-display { margin: .2em 0; }
[data-demo-layout] .demo-readings .status, [data-demo-layout] .demo-readings #check { margin: 0; padding: 8px 10px; line-height: 1.45; font-size: .9rem; min-height: 0; }
[data-demo-layout] #controls { display: grid; grid-template-columns: minmax(0,1fr); gap: 8px; padding: 0; margin: 0; border: 0; background: transparent; }
[data-demo-layout] .control, [data-demo-layout] .control-group { margin: 0; min-width: 0; gap: 4px; }
[data-demo-layout] .control-heading, [data-demo-layout] .row { gap: 6px; margin: 0; font-size: .92rem; }
[data-demo-layout] input[type=number] { width: 88px; min-height: 36px; }
[data-demo-layout] input[type=range] { display: block; width: 100%; margin: 0; min-height: 30px; }
[data-demo-layout] .actions, [data-demo-layout] .button-row, [data-demo-layout] .presets { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; }
[data-demo-layout] button { min-height: 40px; padding: 5px 9px; font-size: .85rem; }
[data-demo-layout] .demo-options, [data-demo-layout] .demo-extra, [data-demo-layout] .coordinates { margin: 8px 0 0; font-size: .9rem; }
[data-demo-layout] summary { min-height: 32px; cursor: pointer; color: var(--muted); }
[data-demo-layout] .options { margin: 6px 0; }
[data-demo-layout] #source-link { margin-top: 8px; }
[data-demo-layout] [hidden] { display: none !important; }
@container (min-width: 720px) {
 [data-demo-layout] .demo-workspace { grid-template-columns: minmax(0,1fr) clamp(280px,38cqw,360px); gap: 16px; }
}
@media (max-width: 520px) {
 body:has([data-demo-layout]) { padding: 4px; }
 main[data-demo-layout] { padding: 8px; }
 [data-demo-layout] h1 { font-size: 1.1rem; }
 [data-demo-layout] button { min-height: 44px; }
}

/* Dense measurements stay visible; explanations remain available below. */
html[data-demo-embedded="true"] [data-demo-layout] > header > p:not([id]),
html[data-demo-embedded="true"] [data-demo-layout] .eyebrow { display: none; }
[data-demo-layout^="conic-section-"] .demo-readings .readouts { grid-template-columns: minmax(0,1fr); gap: 3px; }
[data-demo-layout^="conic-section-"] .metric { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 4px 8px; padding: 2px 8px; }
[data-demo-layout^="conic-section-"] .metric h2 { margin: 0; }
[data-demo-layout^="conic-section-"] .metric output { text-align: right; }
[data-demo-layout^="conic-section-"] #controls { grid-template-columns: minmax(0,1fr); }
[data-demo-layout] .demo-extra:has(#metric-notes:empty) { display: none; }
[data-demo-layout] .demo-more-presets { flex-basis: 100%; }
[data-demo-layout] .demo-more-presets > div { display: flex; flex-wrap: wrap; gap: 6px; }
[data-demo-layout] .demo-more-presets summary { font-size: .85rem; min-height: 26px; }