/* Interactive E. coli lab: a step-by-step guide to the paper beside a live view of the model.
   Scoped under .elab; colors follow the site palette in style.css. */
.elab {
  --elab-ink: #24343e;
  --elab-muted: #5f737d;
  --elab-line: #d8e4e2;
  --elab-bg: transparent;
  --elab-soft: #f1f7f5;
  --elab-teal: #1f7f7a;
  --elab-teal-dark: #135b58;
  --elab-orange: #b8703d;
  --elab-orange-dark: #8a4f25;
  --elab-blue: #4b5fb8;
  --elab-red: #c43e48;
  --elab-focus: #b76420;
  background: var(--elab-bg);
  color: var(--elab-ink);
  font-family: var(--sans, 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif);
  font-size: 14px;
  line-height: 1.5;
}
.elab * { box-sizing: border-box; }
.elab button, .elab select, .elab input { font: inherit; }
.elab button { cursor: pointer; }
.elab button:disabled { cursor: default; opacity: .4; }
.elab :focus-visible { outline: 3px solid var(--elab-focus); outline-offset: 2px; }
.elab [hidden] { display: none !important; }

.elab-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding: 18px 20px 10px; }
.elab-kicker { margin: 0; font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: #66837c; }
.elab-head h3 { margin: 4px 0 0; font: 700 24px/1.2 var(--display, system-ui, sans-serif); letter-spacing: -.025em; color: #0e1a22; }
.elab-link { border: 0; background: none; color: #3f6c69; font-size: 12px; padding: 6px 4px; white-space: nowrap; border-radius: 4px; }
.elab-link:hover { text-decoration: underline; }

.elab-main { display: grid; grid-template-columns: 1fr; gap: 16px; padding: 0 18px 12px; }
.elab.elab-wide .elab-main { grid-template-columns: 320px minmax(0, 1fr); align-items: start; }

/* ---------- guide ---------- */
.elab-guide { background: var(--elab-soft); border: 1px solid #e1ece8; border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.elab.elab-wide .elab-guide { min-height: 580px; position: sticky; top: 10px; }
.elab-g-count { margin: 0; font-size: 12px; color: #7c918b; font-variant-numeric: tabular-nums; }
.elab-guide h4 { margin: 0; font: 650 19px/1.25 var(--sans, system-ui, sans-serif); letter-spacing: -.01em; color: #0e1a22; }
.elab-g-fig { background: #fff; border: 1px solid #e3ece9; border-radius: 10px; padding: 12px; min-height: 172px; display: flex; align-items: center; justify-content: center; }
.elab-g-fig svg { display: block; width: 100%; height: auto; max-height: 190px; overflow: visible; }
.elab-g-fig text { font: 12px var(--sans, system-ui, sans-serif); fill: var(--elab-muted); }
.elab-g-fig text.b { fill: var(--elab-ink); font-weight: 600; }
.elab-g-fig text.big { font-size: 34px; font-weight: 700; }
.elab-g-line { margin: 0; font-size: 14px; line-height: 1.5; color: #2f434c; }
.elab-tag { display: inline-block; font-size: 10px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; padding: 1px 6px; border-radius: 4px; margin-right: 7px; vertical-align: 1px; border: 1px solid #c5d8d2; background: #fff; color: #4b6b65; }
.elab-tag.here { background: var(--elab-teal-dark); border-color: var(--elab-teal-dark); color: #fff; }
.elab-g-nav { display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.elab-g-nav > .elab-btn { min-height: 38px; min-width: 40px; font-size: 14px; white-space: nowrap; }
.elab-g-dots { display: flex; justify-content: center; margin-top: auto; }
.elab-g-dots button { width: 13px; height: 26px; padding: 0; border: 0; background: none; display: grid; place-items: center; }
.elab-g-dots button::after { content: ''; width: 6px; height: 6px; border-radius: 3px; background: #c7d6d2; }
.elab-g-dots button[aria-current=step]::after { width: 12px; background: var(--elab-teal-dark); }

/* ---------- stage ---------- */
.elab-stagecol { min-width: 0; }
.elab-viewbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.elab-view-title { margin: 0; font-size: 15px; font-weight: 650; color: #0e1a22; }
.elab-viewseg button { padding: 4px 10px; min-height: 28px; }
.elab-small { font-size: 12px; color: var(--elab-muted); margin: 0; }
.elab-muted { color: var(--elab-muted); }

.elab-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 10px; }
.elab-toolbar-end { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.elab-seg { display: inline-flex; border: 1px solid #c5d8d2; border-radius: 999px; padding: 2px; background: #fff; }
.elab-seg button { border: 0; background: none; border-radius: 999px; padding: 5px 12px; font-size: 12px; color: #4b6b65; min-height: 30px; white-space: nowrap; }
.elab-seg button[aria-pressed=true] { background: var(--elab-teal); color: #fff; }
.elab-seg[data-tone=untrained] button[aria-pressed=true] { background: var(--elab-orange); }
.elab-btn { border: 1px solid #c5d8d2; background: #fff; color: #315f5c; border-radius: 7px; padding: 5px 11px; font-size: 12px; min-height: 32px; }
.elab-btn:hover:not(:disabled) { background: var(--elab-soft); }
.elab-btn.primary { background: var(--elab-teal-dark); border-color: var(--elab-teal-dark); color: #fff; font-weight: 600; }
.elab-btn.primary:hover:not(:disabled) { background: #0e4644; }
.elab-range { display: grid; grid-template-columns: auto 1fr auto; gap: 8px; align-items: center; font-size: 12px; margin: 0 0 10px; }
.elab-range input { accent-color: var(--elab-teal); min-width: 0; }
.elab-range output { font-variant-numeric: tabular-nums; min-width: 56px; text-align: right; }
.elab-cycle { flex: 1; min-width: 200px; margin: 0; }
.elab-tag-trained, .elab-tag-untrained { display: inline-block; font-size: 12px; font-weight: 700; padding: 2px 9px; border-radius: 999px; color: #fff; }
.elab-tag-trained { background: var(--elab-teal); }
.elab-tag-untrained { background: var(--elab-orange); }
.elab-key { display: flex; flex-wrap: wrap; gap: 3px 14px; margin: 6px 0 0; font-size: 11.5px; color: var(--elab-muted); }
.elab-key i { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 5px; }
.elab-key .k-squeeze { background: var(--elab-red); }
.elab-key .k-stretch { background: #2e6cb0; }
.elab-key .k-motor { width: 10px; height: 10px; border-radius: 50%; background: conic-gradient(var(--elab-teal) 0 70%, #fff 70% 100%); border: 1.5px solid var(--elab-teal-dark); }
.elab-key .k-stiff { background: #16202a; }
.elab-key .k-soft { background: #8e6cbe; }
.elab-key .k-in { width: 10px; height: 10px; border-radius: 50%; background: var(--elab-red); }
.elab-key .k-goal { width: 10px; height: 10px; border-radius: 50%; background: #e8e3f6; border: 2px solid #5b46a8; }

/* Same cell, two walls */
.elab-example { margin: 0 0 12px; color: var(--elab-ink); font-size: 12px; line-height: 1.6; }
.elab-lane-head > span { text-align: right; font-size: 11px; }
.elab-slow { font-size: 11px; background: #fff; border: 1px solid #d3e4db; border-radius: 999px; padding: 3px 10px; color: #4f7068; }
.elab-lane { margin-bottom: 10px; }
.elab-lane-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 5px; font-size: 12px; color: var(--elab-muted); font-variant-numeric: tabular-nums; }
.elab-lane-body { display: flex; gap: 10px; height: var(--elab-lane-h, 190px); }
.elab-lane-stage { position: relative; flex: 1; min-width: 0; border: 1px solid var(--elab-line); border-radius: 0; overflow: hidden; background: transparent; }
.elab-lane[data-lane=trained] .elab-lane-stage { border-left: 4px solid var(--elab-teal); }
.elab-lane[data-lane=untrained] .elab-lane-stage { border-left: 4px solid var(--elab-orange); }
.elab-lane-stage canvas { display: block; width: 100%; height: 100%; }
.elab-lane-net { flex: none; height: 100%; aspect-ratio: 1; border: 1px solid var(--elab-line); border-radius: 8px; overflow: hidden; background: #fff; }
.elab-lane-net canvas { display: block; width: 100%; height: 100%; }
.elab-lane-tag { position: absolute; left: 10px; top: 10px; font-size: 12.5px; font-weight: 600; background: #ffffffeb; border: 1px solid #d3e4db; border-radius: 999px; padding: 3px 11px; color: #3f535d; pointer-events: none; }
.elab-lane-tag[data-tone=touch] { border-color: var(--elab-red); color: #8f2630; }
.elab-lane-tag[data-tone=good] { border-color: var(--elab-teal); color: var(--elab-teal-dark); }
.elab-lane-tag[data-tone=bad] { border-color: #e3c09d; color: var(--elab-orange-dark); }
.elab-score-line { margin: 6px 0 0; font-size: 12px; color: var(--elab-muted); }

/* Inside the wall */
.elab-pick { display: flex; flex-wrap: wrap; align-items: center; gap: 5px; }
.elab-pick button { border: 1px solid #c5d8d2; background: #fff; border-radius: 999px; padding: 4px 11px; font-size: 12px; color: #315f5c; min-height: 30px; }
.elab-pick button[aria-pressed=true] { background: #fbe9e6; border-color: var(--elab-red); color: #8f2630; }
.elab-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.elab-netfig { margin: 0; display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.elab-netfig figcaption { align-self: flex-start; }
.elab-netwrap { border: 1px solid var(--elab-line); border-radius: 0; background: transparent; overflow: hidden; }
.elab-netwrap canvas { display: block; width: 100%; height: auto; }
.elab-pair .elab-netwrap canvas { cursor: pointer; }
.elab-readouts { display: grid; gap: 5px; border-radius: 8px; padding: 6px; transition: background .3s, box-shadow .3s; }
.elab-readouts.focus { background: #fff; box-shadow: 0 0 0 2px var(--elab-teal) inset; }
.elab-readout { display: grid; grid-template-columns: 58px 1fr; gap: 1px 8px; align-items: center; font-size: 12px; }
.elab-readout .track { height: 9px; background: #edf3f1; border-radius: 3px; overflow: hidden; }
.elab-readout .track i { display: block; height: 100%; width: 0; background: var(--elab-red); transition: width .15s; }
.elab-readout small { grid-column: 2; font-size: 11.5px; color: var(--elab-muted); font-variant-numeric: tabular-nums; }
.elab-readout.fast small { color: var(--elab-teal-dark); font-weight: 600; }
.elab-readout.slow small { color: var(--elab-orange-dark); font-weight: 600; }
.elab-readout.pressed b { color: var(--elab-red); }
.elab-legend { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 11.5px; color: var(--elab-muted); margin: 8px 0 0; }
.elab-legend i { display: inline-block; width: 18px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 5px; }

/* Training */
.elab-trainrow { display: grid; grid-template-columns: 1fr; gap: 14px; }
.elab.elab-wide .elab-trainrow { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.elab-trainnet { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.elab-trainnet .elab-seg { align-self: flex-start; }
.elab-trainnet .elab-netwrap { width: min(100%, 400px); aspect-ratio: 1; }
.elab-trainnet .elab-netwrap canvas { height: 100%; }
.elab-net-note { margin: 0; font-size: 13px; line-height: 1.45; color: #3f535d; min-height: 2.9em; }
.elab-charts { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.elab-charts figure { margin: 0; }
.elab-charts figcaption { font-size: 11.5px; color: var(--elab-muted); margin-bottom: 3px; }
.elab-chart { height: 150px; border: 1px solid var(--elab-line); border-radius: 6px; overflow: hidden; background: #fff; }
.elab-chart canvas { display: block; width: 100%; height: 100%; }

/* Contact clock */
.elab-clockchart { border: 1px solid var(--elab-line); border-radius: 8px; overflow: hidden; background: #fff; }
.elab-clockchart canvas { display: block; width: 100%; height: 260px; }
.elab-clockstats { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: 10px; }
.elab.elab-wide .elab-clockstats { grid-template-columns: 1fr 1fr; }
.elab-clockstats > p { grid-column: 1 / -1; }
.elab-clockstat { display: flex; flex-direction: column; gap: 2px; background: #fff; border: 1px solid var(--elab-line); border-left: 4px solid var(--elab-teal); border-radius: 8px; padding: 8px 12px; font-size: 13px; color: #3f535d; }
.elab-clockstat[data-tone=untrained] { border-left-color: var(--elab-orange); }
.elab-clockstat b { font-size: 12px; color: var(--elab-ink); }
.elab-clockstat strong { color: var(--elab-ink); font-variant-numeric: tabular-nums; }

/* Game */
.elab-playrow { display: grid; grid-template-columns: 1fr; gap: 12px; }
.elab.elab-wide .elab-playrow { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); }
.elab-stage { position: relative; border: 1px solid var(--elab-line); border-radius: 8px; overflow: hidden; background: #f3f9f7; }
.elab-playstage { aspect-ratio: 520 / 400; }
.elab-playstage canvas { display: block; width: 100%; height: 100%; touch-action: manipulation; }
.elab-playside { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.elab-playside .elab-netwrap { width: min(100%, 260px); aspect-ratio: 1; }
.elab-playside .elab-netwrap canvas { height: 100%; }
.elab-game-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 10px; }
.elab-release { border: 1px solid #b9c3e6; background: #fff; color: #303f86; border-radius: 8px; padding: 10px; font-size: 14px; font-weight: 600; min-height: 48px; }
.elab-release:hover { background: #f1f3fb; }
.elab-release:active, .elab-release.hit { background: var(--elab-blue); color: #fff; }
.elab-release kbd { font: inherit; font-weight: 400; font-size: 11px; opacity: .7; margin-left: 6px; }
.elab-release.ready { border-color: var(--elab-blue); box-shadow: 0 0 0 3px rgba(75,95,184,.18); animation: elab-pulse .9s ease-in-out infinite; }
@keyframes elab-pulse { 50% { box-shadow: 0 0 0 6px rgba(75,95,184,.08); } }
.elab-countdown { position: absolute; left: 50%; bottom: 12px; transform: translateX(-50%); width: min(80%, 360px); background: #fff; border: 2px solid var(--elab-red); border-radius: 10px; padding: 6px 12px 8px; text-align: center; pointer-events: none; box-shadow: 0 4px 14px rgba(36,52,62,.15); }
.elab-countdown.at-top { bottom: auto; top: 12px; }
.elab-countdown span { display: block; font-size: 13px; font-weight: 700; color: #8f2630; }
.elab-banner { margin-top: 8px; min-height: 40px; text-align: center; background: #fff; border: 1px solid var(--elab-line); border-radius: 8px; padding: 9px 12px; font-size: 13px; color: var(--elab-muted); opacity: .55; transition: opacity .2s; }
.elab-banner.on { opacity: 1; }
.elab-banner.alert { border-color: var(--elab-red); color: #8f2630; font-weight: 600; }
.elab-banner.good { border-color: #7fb8ae; color: var(--elab-teal-dark); }
.elab-banner.bad { border-color: #e3c09d; color: #7a4a22; }
.elab-hud { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 10px 0 0; font-size: 12px; color: var(--elab-muted); }
.elab-hud b { color: var(--elab-ink); font-variant-numeric: tabular-nums; }
.elab-card { border: 1px solid var(--elab-line); border-radius: 8px; background: #fff; padding: 12px; margin: 0; min-width: 0; }
.elab-card h4 { margin: 0 0 2px; font-size: 13px; font-weight: 600; }
.elab-result { margin-top: 10px; }
.elab-result p { margin: 4px 0 0; font-size: 13px; color: #3f535d; }
.elab-bars { display: grid; gap: 7px; margin: 10px 0 8px; }
.elab-bar { display: grid; grid-template-columns: 92px 1fr 44px; gap: 8px; align-items: center; font-size: 12px; }
.elab-bar .track { height: 12px; background: #edf3f1; border-radius: 3px; overflow: hidden; }
.elab-bar .track i { display: block; height: 100%; width: 0; background: var(--elab-teal); border-radius: 3px; transition: width .4s; }
.elab-bar[data-bar=untrained] .track i { background: var(--elab-orange); }
.elab-bar[data-bar=you] .track i { background: var(--elab-blue); }
.elab-bar output { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }

/* Contact clock track (game) */
.elab-clock { border-top: 1px solid var(--elab-line); padding-top: 8px; }
.elab-clock-head { display: flex; justify-content: space-between; align-items: baseline; margin: 0 0 5px; font-size: 11px; color: var(--elab-muted); font-variant-numeric: tabular-nums; }
.elab-clock-head b { color: #4b6b65; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; font-size: 10px; }
.elab-clock.live .elab-clock-head span { color: var(--elab-ink); font-weight: 600; }
.elab-clock-track { position: relative; height: 18px; background: #eef3f1; border-radius: 4px; }
.elab-clock-track .win { position: absolute; left: 0; top: 0; bottom: 0; width: 36.67%; background: #d5e9e2; border-radius: 4px 0 0 4px; font-size: 9px; line-height: 18px; color: #4f7068; padding-left: 5px; white-space: nowrap; overflow: hidden; }
.elab-clock-track .now { position: absolute; top: -3px; bottom: -3px; width: 2px; margin-left: -1px; background: var(--elab-ink); border-radius: 1px; }
.elab-clock-track .rel { position: absolute; top: 50%; width: 10px; height: 10px; margin: -5px 0 0 -5px; background: var(--elab-teal); transform: rotate(45deg); border-radius: 2px; }
.elab-clock-track .rel.late { background: var(--elab-orange); }
.elab-clock-track .rel.off { transform: none; width: auto; height: auto; left: auto !important; right: 4px; margin: -7px 0 0; background: none; color: #8a4f25; font-size: 10px; font-weight: 600; white-space: nowrap; line-height: 14px; }
.elab-clock-key { display: flex; flex-wrap: wrap; gap: 2px 12px; margin: 5px 0 0; font-size: 10.5px; color: var(--elab-muted); }
.elab-clock-key i { display: inline-block; vertical-align: middle; margin-right: 5px; }
.elab-clock-key .k-now { width: 2px; height: 11px; background: var(--elab-ink); }
.elab-clock-key .k-rel { width: 8px; height: 8px; background: var(--elab-teal); transform: rotate(45deg); border-radius: 1px; }
.elab-clock-note { margin: 4px 0 0; font-size: 11.5px; line-height: 1.4; color: #3f535d; min-height: 2.8em; }

.elab-foot { padding: 0 18px 14px; }
.elab-about { font-size: 12px; color: var(--elab-muted); }
.elab-about summary { cursor: pointer; }
.elab-about ul { margin: 6px 0; padding-left: 18px; }
.elab-about li { margin-bottom: 3px; }
.elab-error { color: #86411e; font-size: 13px; }
.elab-error:empty { display: none; }

.elab.expanded { position: fixed; inset: 16px; z-index: 100; max-width: 1280px; margin: auto; overflow: auto; border: 1px solid #c5dbd0; border-radius: 14px; box-shadow: 0 0 0 100vmax #193e4166; }

/* Embedded on the home page: the panel has its own heading, so only the Expand button is shown. */
.model-card .elab:not(.expanded) .elab-head { position: static; padding: 6px 14px 0; justify-content: flex-end; }
.model-card .elab:not(.expanded) .elab-head > div { display: none; }

@media (max-width: 640px) {
  .elab-head { padding: 14px 14px 8px; }
  .elab-head h3 { font-size: 21px; }
  .elab-main { padding: 0 10px 10px; }
  .elab-foot { padding: 0 10px 12px; }
  .elab-lane-body { --elab-lane-h: 132px; }
  .elab-lane-tag { font-size: 11px; padding: 2px 8px; left: 6px; top: 6px; max-width: calc(100% - 12px); }
  .elab-pair { grid-template-columns: 1fr; }
  .elab-toolbar-end { margin-left: 0; }
  .elab.expanded { inset: 6px; }
  .elab-release { font-size: 13px; padding: 8px; }
  .elab-release kbd { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .elab * { transition: none !important; animation: none !important; }
}

/* A self-contained first look; optional controls stay inside the disclosure. */
.elab .elab-quick { container: elab-overview / inline-size; position: relative; padding: 8px 0 12px; }
.elab .elab-quick > h3 { margin: 0 0 20px; color: var(--elab-ink); font: 400 27px/1.25 var(--serif, Georgia, serif); letter-spacing: -.02em; }
.elab .elab-paired { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.elab .elab-quick .elab-lane { min-width: 0; margin: 0; }
.elab .elab-quick .elab-lane-body { height: 190px; }
.elab .elab-quick .elab-lane-head { margin-bottom: 8px; }
.elab .elab-quick :is(.elab-tag-trained, .elab-tag-untrained) { padding: 0; border-radius: 0; background: none; font-size: 13px; font-weight: 600; }
.elab .elab-quick .elab-tag-trained { color: var(--elab-teal-dark); }
.elab .elab-quick .elab-tag-untrained { color: var(--elab-orange-dark); }
.elab .elab-quick .elab-lane-stage { border-radius: 5px; }
.elab .elab-quick .elab-key { display: block; margin: 10px 0 0; font-size: 10px; line-height: 1.6; }
.elab .elab-quick .elab-toolbar { margin: 12px 0 0; }
.elab .elab-quick .elab-toolbar > :not([data-action=swim-reset]) { display: none !important; }
.elab .elab-quick [data-action=swim-reset] { min-height: 44px; padding: 7px 15px; border-radius: 5px; }
.elab .elab-quick [data-swim-status] { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; border: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.elab .elab-takeaways { display: grid; gap: 9px; margin: 22px 0 0; padding: 0; list-style: none; }
.elab .elab-takeaways li { display: grid; grid-template-columns: 82px minmax(0, 1fr); gap: 12px; }
.elab .elab-takeaways b { color: var(--elab-muted); font-size: 11px; font-weight: 500; line-height: 1.8; }
.elab .elab-takeaways p { margin: 0; font-size: 13px; line-height: 1.55; }
.elab .elab-more { margin: 0 20px 0; padding: 8px 0 10px; border-top: 1px solid var(--elab-line); }
.elab .elab-more > summary { width: fit-content; min-height: 44px; padding: 10px 0; cursor: pointer; color: #315f5c; font-size: 12px; }
.elab .elab-more[open] > summary { margin-bottom: 10px; }
.elab .elab-more .elab-head { align-items: center; padding: 0 0 12px; }
.elab .elab-more .elab-main { display: block; padding: 0; }
.elab .elab-more .elab-foot { padding: 12px 0 0; }
.elab > .elab-error { margin: 0; padding: 0 20px; }
@container elab-overview (max-width: 519px) {
  .elab .elab-paired { grid-template-columns: 1fr; gap: 14px; }
  .elab .elab-quick .elab-lane-body { height: 145px; }
}
@media (max-width: 700px) {
  .elab .elab-quick { padding: 8px 0 12px; }
  .elab .elab-quick > h3 { font-size: 24px; }
  .elab .elab-takeaways li { grid-template-columns: 70px minmax(0, 1fr); gap: 10px; }
  .elab .elab-more { margin-inline: 14px; }
}
/* The contact assay is the first, directly manipulable experiment. */
.elab .elab-contact { padding:8px 0 14px; }
.elab-contact-head { display:flex; justify-content:space-between; gap:14px; align-items:center; margin-bottom:22px; }
.elab .elab-contact h3 { margin:0; font:400 28px/1.2 var(--serif,Georgia); }
.elab-contact-head .elab-btn { font-size:11px; min-height:40px; padding:8px 10px; }
.elab-contact .elab-toolbar { margin:0 0 16px; }
.elab-contact .elab-pick { display:flex; align-items:center; flex-wrap:wrap; gap:8px; }
.elab-contact .elab-pick > span { margin-right:6px; }
.elab-contact .elab-pick button { min-height:44px; border:1px solid var(--elab-line); border-radius:3px; padding:8px 15px; font-size:12px; }
.elab-contact .elab-range { margin:0 0 18px; gap:12px; color:var(--elab-muted); font-size:11px; }
.elab-contact .elab-pair { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }
.elab-contact .elab-netwrap { aspect-ratio:1; height:auto; }
.elab-contact .elab-netwrap canvas { display:block; width:100%; height:auto; touch-action:manipulation; cursor:pointer; }
.elab-contact :is(.elab-tag-trained,.elab-tag-untrained) { background:none; padding:0; font-weight:500; }
.elab-contact .elab-tag-trained { color:var(--elab-teal-dark); }
.elab-contact .elab-tag-untrained { color:var(--elab-orange-dark); }
.elab .elab-contact .elab-readouts { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); padding:0; gap:12px; }
.elab-motor-readout { display:grid; grid-template-columns:14px minmax(0,1fr); gap:5px; align-items:center; font-size:10px; color:var(--elab-muted); }
.elab-motor-readout > i { height:28px; position:relative; border-bottom:1px solid var(--elab-line); background:var(--elab-soft); }
.elab-motor-readout > i > b { display:block; position:absolute; bottom:0; width:100%; background:var(--elab-red); min-height:1px; }
.elab-motor-readout small { grid-column:1/-1; min-height:14px; font-size:9px; }
.elab-motor-readout.touching > span { color:var(--elab-red); font-weight:600; }
.elab-motor-label { margin:8px 0!important; font-size:10px!important; color:var(--elab-muted); }
.elab .elab-contact .elab-legend { font-size:10px; margin-top:16px; display:flex; gap:10px 16px; flex-wrap:wrap; }
.elab-encounter { border-top:1px solid var(--elab-line); margin:0 18px; }
.elab-encounter > summary { padding:14px 0; min-height:44px; font-size:11px; color:var(--elab-muted); cursor:pointer; }
.elab .elab-encounter .elab-quick { padding:10px 0 20px; }
.elab .elab-encounter .elab-quick > h3 { font-size:22px; }
@container elab-overview (max-width:500px) { .elab-contact .elab-pair { gap:10px; } }
@media (max-width:700px) {
 .elab .elab-contact { padding:8px 0 14px; }
 .elab .elab-contact h3 { font-size:24px; }
 .elab-contact .elab-pair { gap:12px; }
 .elab .elab-contact .elab-readouts { gap:4px; }
 .elab-contact .elab-range { grid-template-columns:auto minmax(40px,1fr) auto; }
}

.elab-contact-head .elab-btn { flex-shrink:0; min-width:68px; white-space:nowrap; }

/* Question-led contact experiment, matching Spring Lab's quiet workbench. */
.elab {--elab-bg:transparent;--elab-soft:#f0ebe1;--elab-ink:#302e29;--elab-muted:#6d655b;--elab-line:#d8d0c2;}
.elab .elab-contact-head {margin-bottom:5px;align-items:flex-start;}
.elab .elab-contact h2 {margin:0;font:400 clamp(27px,3.3vw,36px)/1.15 var(--serif,Georgia,serif);letter-spacing:-.025em;}
.elab .elab-origin {margin:4px 0 14px;font-size:11px;color:var(--elab-muted);}
.elab .elab-origin a {color:inherit;text-decoration:none;}
.elab .elab-origin a:hover {text-decoration:underline;}
.elab .elab-contact-cue {margin:0 0 12px;font:400 17px/1.4 var(--serif,Georgia,serif);}
.elab .elab-contact .elab-toolbar {justify-content:space-between;gap:12px;margin-bottom:8px;}
.elab .elab-contact [data-group=mode] {display:flex;flex-wrap:wrap;gap:0;}
.elab .elab-contact [data-group=mode] button {min-height:36px;padding:6px 11px;font-size:11px;border-radius:0;background:transparent;}
.elab .elab-contact [data-group=mode] button[aria-pressed=true] {background:#ede3cf;color:#71501f;border-color:#b6a47c;}
.elab .elab-contact .elab-range {margin-bottom:10px;}
.elab .elab-contact .elab-netwrap {max-width:360px;margin-inline:auto;}
.elab .elab-contact .elab-legend {margin-top:10px;}
@media (min-width:850px) and (min-height:650px) {
 .elab .elab-contact {padding:12px 18px;}
 .elab .elab-contact .elab-netwrap {max-width:clamp(210px,calc(100dvh - 430px),340px);}
 .elab .elab-origin {margin-bottom:8px;}
}

/* Cell → wall response → whole-cell action, with one question throughout. */
.elab-inquiry-head {padding:4px 0 0;}
.elab .elab-inquiry-head h2,.elab .elab-contact h2 {margin:0;font:400 clamp(30px,4vw,40px)/1.12 var(--serif,Georgia,serif);letter-spacing:-.025em;}
.elab .elab-inquiry-intro {margin:6px 0 9px;max-width:52ch;font:400 16px/1.45 var(--serif,Georgia,serif);color:var(--elab-ink);}
.elab-chapters {display:flex;flex-wrap:wrap;gap:4px 25px;border-bottom:1px solid var(--elab-line);}
.elab .elab-chapters button {border:0;border-bottom:2px solid transparent;border-radius:0;background:transparent;min-height:40px;padding:6px 0;font-size:12px;color:var(--elab-muted);}
.elab .elab-chapters button[aria-current=step] {color:var(--elab-ink);border-bottom-color:var(--elab-ink);}
.elab .elab-step-cue {margin:12px 0 3px;font:400 17px/1.4 var(--serif,Georgia,serif);}
.elab-cell-stage {padding:4px 0 14px;}
.elab-cell-schematic {display:block;width:100%;max-width:920px;height:auto;margin:auto;}
.elab-cell-play {cursor:pointer;}
.elab-cell-play:hover {filter:brightness(1.03);}
.elab-cell-play:focus {outline:none;}
.elab-cell-play:focus-visible {outline:3px solid #32638b;outline-offset:6px;}
.elab-together [data-canvas^=wall-] {cursor:pointer;touch-action:none;}
.elab-together [data-canvas^=lane-] {cursor:pointer;}
.elab-together-in .elab-side-orbs {display:none;}
.elab-step-actions[hidden] {display:none!important;}
.elab .step-strip {display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;margin-block-start:8px;padding-block-end:8px;border-block-end:1px solid var(--elab-line);}
.elab .step-strip-steps {display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 18px;flex:1 1 auto;margin:0;padding:0;list-style:none;min-width:0;}
.elab .step-strip-steps button {border:0;border-radius:0;background:transparent;min-height:0;padding:4px 0;color:var(--elab-muted);font:500 13px/1.3 var(--sans,Arial,sans-serif);text-align:start;}
.elab .step-strip-steps button[aria-current="step"] {color:var(--elab-ink);font:500 22px/1.25 var(--serif,Georgia,serif);}
.elab .step-strip-steps button[aria-current="step"] .step-name,
.elab .step-strip-steps button:not([aria-current="step"]) .step-do {display:none;}
.elab .step-num {margin-inline-end:.35em;}
.elab .elab-step-next {margin-inline-start:auto;}
.elab .elab-step-next:disabled {background:transparent;border-color:transparent;color:var(--elab-muted);opacity:1;}
.elab .elab-step-cue.step-live {flex:1 1 100%;margin:0;font:400 15px/1.35 var(--serif,Georgia,serif);color:var(--elab-muted);}
.elab-cell-play.has-gestured .gesture-mark {display:none;}
.elab .gesture-leader {stroke:#c45a3a;fill:none;pointer-events:none;}
.elab .gesture-mark {pointer-events:none;}
.elab .gesture-mark-pill {fill:#1b2433;stroke:#c45a3a;}
.elab .gesture-mark-text {fill:#fff8ee;font:600 13px Inter,system-ui,sans-serif;}
.elab .elab-quick .elab-toolbar {display:none;}
.elab-schematic-label {fill:var(--elab-ink);font:500 15px var(--serif,Georgia,serif);}
.elab-schematic-small {fill:var(--elab-muted);font:12px var(--sans,Arial,sans-serif);}
.elab-schematic-route {fill:#2f6f7a;font:500 13px var(--serif,Georgia,serif);paint-order:stroke fill;stroke:#efe8d8;stroke-width:5px;stroke-linejoin:round;}
.elab-schematic-touch {fill:#c45a3a;font:600 12px var(--sans,Arial,sans-serif);}
.elab-pg-mesh {opacity:.82;}
.elab-route {stroke-dasharray:5 7;animation:elab-route 2.6s linear infinite;}
.elab-touch-glow {animation:elab-glow 2.2s ease-in-out infinite;}
@keyframes elab-route {to {stroke-dashoffset:-24;}}
@keyframes elab-glow {50% {opacity:.55;}}
.elab-schematic-caption {margin:2px auto 0;max-width:52ch;text-align:center;font:400 16px/1.45 var(--serif,Georgia,serif);color:var(--elab-ink);}
.elab .elab-contact > .elab-schematic-caption {margin:0 0 18px;text-align:left;max-width:58ch;}
.elab-together {display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);grid-template-areas:"cap cap" "in out" "wall world";gap:6px 28px;align-items:start;}
.elab-together > .elab-schematic-caption {grid-area:cap;margin:0 0 2px;text-align:left;max-width:68ch;}
.elab-together-head {display:contents;}
.elab-together-in {grid-area:in;display:flex;align-items:center;gap:12px;min-height:44px;}
.elab-together-out {grid-area:out;display:flex;align-items:center;gap:12px;min-height:44px;}
.elab-together .elab-together-label,.elab .elab-together .elab-together-label {margin:0;font:600 12px/1.3 var(--sans,Arial,sans-serif);letter-spacing:.12em;text-transform:uppercase;color:var(--elab-muted);}
.elab-together .elab-contact {grid-area:wall;padding:0;}
.elab-together .elab-encounter {grid-area:world;margin:0;}
.elab-together .elab-side-orbs {margin:0;justify-content:flex-start;gap:10px;}
.elab-together .elab-side-orb {width:44px;height:44px;min-height:44px;font-size:13px;box-shadow:0 4px 12px #0001;}
.elab-together .elab-contact .elab-netwrap {width:100%;max-width:240px;min-height:0;aspect-ratio:1;}
.elab-together .elab-quick {padding-top:0;}
.elab .elab-together [data-group=mode] {display:inline-flex;flex-wrap:wrap;width:auto;gap:0;margin:0 0 8px;}
.elab .elab-together [data-group=mode] button {min-height:30px;padding:4px 11px;font-size:11px;}
#ecoliLab .elab-together .elab-readouts,
#ecoliLab .elab-together .elab-motor-label,
#ecoliLab .elab-together .elab-look {display:none;}
#ecoliLab .elab-together .elab-side-orb {
  width:44px;height:44px;min-height:44px;padding:0;border-radius:50%;font-size:13px;box-shadow:0 4px 12px #0001;
}
.elab-energy-hint {margin:6px 0 0;font-size:12px;color:var(--elab-muted);}
@media (max-width:860px){
 .elab-together {grid-template-columns:1fr;grid-template-areas:"cap" "in" "wall" "out" "world";}
 .elab-together-out {margin-top:10px;}
}
.elab .elab-quick > h3.elab-schematic-caption {margin:0 0 14px;text-align:left;max-width:58ch;font-size:16px;line-height:1.45;}
.elab-schematic-along {fill:#6d655b;}
.elab .elab-side-orbs {display:flex;justify-content:center;gap:28px;margin:0 0 18px;}
.elab .elab-side-orb {width:92px;height:92px;min-height:92px;padding:0;border:1px solid var(--elab-line);border-radius:50%;background:transparent;color:var(--elab-ink);font:500 15px var(--serif,Georgia,serif);box-shadow:0 8px 24px #0002;transition:transform .25s ease,background .25s ease,border-color .25s ease;}
.elab .elab-side-orb:hover {transform:translateY(-4px);}
.elab .elab-side-orb[aria-pressed=true] {background:#fff8ee;color:#1b2433;border-color:#fff8ee;}
.elab .elab-together .elab-side-orbs {margin:0;justify-content:flex-start;gap:10px;}
.elab .elab-together .elab-side-orb {width:44px;height:44px;min-height:44px;font-size:13px;box-shadow:0 4px 12px #0001;}
.elab .elab-btn.primary {border-radius:999px;padding:8px 18px;}
.elab .elab-contact .elab-toolbar {display:none;}
.elab-cell-play {cursor:grab;touch-action:none;}
.elab-cell-play.is-touching {cursor:grabbing;}
.elab-route.is-live {animation:elab-route-run .7s linear infinite;}
@keyframes elab-route-run {to {stroke-dashoffset:-24;}}
@media (prefers-reduced-motion:reduce) {.elab-route.is-live {animation:none;}}
.elab-together .elab-side-orbs,.elab-together-in .elab-side-orbs {display:none!important;}
.elab-step-actions {display:flex;justify-content:flex-end;flex-wrap:wrap;gap:8px;margin-top:7px;}
.elab .elab-unwrapped-label {margin:0 0 8px;font:400 16px/1.4 var(--serif,Georgia,serif);color:var(--elab-ink);}
.elab-look {margin:0 0 12px;border-top:1px solid var(--elab-line);}
.elab-look > summary {min-height:40px;display:list-item;align-content:center;cursor:pointer;font-size:12px;color:var(--elab-muted);}
.elab-look[open] > summary {margin-bottom:8px;}
.elab-look [data-group=mode] {margin-bottom:8px;}
.elab-look .elab-range {margin:0;}
.elab-motor-readout.far > span {color:#2f6f7a;font-weight:600;}
.elab-motor-readout.far > i > b {background:#2f6f7a;}
.elab-motor-readout.far small {color:#2f6f7a;}
.elab .elab-encounter {margin-top:0;border-top:0;}
.elab .elab-encounter .elab-quick {padding-top:4px;}
.elab .elab-encounter .elab-quick>h3 {margin-bottom:12px;}
@media (min-width:850px) and (min-height:650px) {
 .elab .elab-inquiry-head h2,.elab .elab-contact h2 {font-size:32px;}
 .elab-inquiry-head {padding:0;}
 .elab .elab-contact-head {margin-bottom:0;align-items:center;}
 .elab .elab-inquiry-intro {margin:4px 0 6px;font-size:14px;max-width:none;}
 .elab-origin,.elab-step-cue,.elab .elab-step-cue {display:none;}
 .elab-chapters {gap:4px 18px;}
 .elab .elab-chapters button {min-height:32px;}
 .elab-cell-stage {padding:2px 0 6px;}
 .elab-cell-schematic {max-height:clamp(200px,calc(100dvh - 300px),400px);}
 .elab-schematic-caption {font-size:15px;}
 .elab-step-actions {margin-top:4px;}
 .elab .elab-btn.primary {padding:6px 14px;min-height:32px;}
 .elab .elab-contact {padding-top:0;}
 .elab .elab-together .elab-contact {padding:0;}
 .elab-together .elab-contact .elab-netwrap {max-width:clamp(148px,calc(100dvh - 340px),236px);}
 .elab-together .elab-lane-body {height:clamp(78px,calc((100dvh - 340px) / 2),126px);}
 .elab-together .elab-lane {margin-bottom:6px;}
 .elab-foot {padding:2px 0 0;}
 .elab-about > summary {min-height:28px;font-size:11px;}
}
@media (max-width:640px){.elab .elab-inquiry-head h2 {font-size:28px;}.elab-schematic-caption {font-size:15px;}}
@media (prefers-reduced-motion: reduce) {
 .elab-route,.elab-touch-glow {animation:none;}
}