/* Randomness Lab: the reference shelf, newer stories and their experiments.
   Builds on learn.css + learn-story.css; the four pilot stories do not load this file. */

/* Topic colors. Each page sets data-theme on <body>. */
body[data-theme=coin] { --accent:#8a5a12; --wash:#fff8e6; --accent-line:#ead29c; --soft:#fbebc4; }
body[data-theme=seven] { --accent:#a03763; --wash:#fff4f7; --accent-line:#ecc2d1; --soft:#fbe2ea; }
body[data-theme=machine] { --accent:#3f4f9c; --wash:#f4f5fd; --accent-line:#c7cdee; --soft:#e3e7f9; }
body[data-theme=lava] { --accent:#b0452a; --wash:#fff5f0; --accent-line:#f0c7b7; --soft:#fde2d6; }
body[data-theme=fix] { --accent:#7d3a4c; --wash:#fdf4f5; --accent-line:#e3c3cb; --soft:#f6e1e5; }
body[data-theme=shuffle] { --accent:#1d6a72; --wash:#f0f8f8; --accent-line:#b9d9db; --soft:#dcf0f1; }
body[data-theme=birthday] { --accent:#a6497c; --wash:#fff4f9; --accent-line:#ecc4d9; --soft:#fae1ee; }
body[data-theme=gambler] { --accent:#27623f; --wash:#f1f8f3; --accent-line:#bcd9c6; --soft:#def0e4; }
body[data-theme=monty] { --accent:#8a5a00; --wash:#fff8e9; --accent-line:#ecd29d; --soft:#fbeac4; }
body[data-theme=history] { --accent:#7a5330; --wash:#fbf5ec; --accent-line:#e2cdb2; --soft:#f3e6d3; }
body[data-theme=facts] { --accent:#176858; --wash:#eff8f4; --accent-line:#b7d8cb; --soft:#dff1e9; }
body[data-theme=glossary] { --accent:#34657c; --wash:#f2f6f8; --accent-line:#bdd0da; --soft:#e3edf3; }
body[data-theme=works] { --accent:#0d6386; --wash:#f0f7fb; --accent-line:#b6d5e3; --soft:#dcedf5; }
body[data-theme=words] { --accent:#5a4fb0; --wash:#f5f4fd; --accent-line:#cdc8ee; --soft:#e7e4f9; }
body[data-theme=lottery] { --accent:#76590a; --wash:#fdf8e6; --accent-line:#e6d59b; --soft:#f7ecc3; }
body[data-theme=dice] { --accent:#a63a45; --wash:#fff4f4; --accent-line:#ecc4c7; --soft:#fbe1e3; }

/* ---------- Hub ---------- */
.section-head { max-width:720px; margin:62px 0 28px; }
.section-head .eyebrow { margin-bottom:12px; color:#41654e; font-size:11px; }
.section-head h2 { font:750 38px/1.12 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-1.2px; margin:0 0 10px; color:var(--ink); }
.section-head p { font:19px/1.6 var(--reading-font); color:#5e6b60; margin:0; }
.lab-shelf .section-head { margin-top:46px; }
.shelf-grid { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.shelf-card { --tone:#176858; --tint:#e6f4ee; display:grid; grid-template-columns:auto 1fr auto; align-items:center; gap:20px; padding:20px 22px; background:#fffefa; border:1px solid var(--line); border-radius:6px 22px 6px 22px; color:var(--ink); text-decoration:none; transition:transform .18s,border-color .18s; }
.shelf-card:hover { transform:translateY(-2px); border-color:var(--tone); }
.shelf-mark { display:grid; place-items:center; width:64px; height:64px; border-radius:16px; background:var(--tint); color:var(--tone); font:850 25px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.05em; transform:rotate(-5deg); box-shadow:3px 4px 0 #3259440d; }
.shelf-card:nth-child(even) .shelf-mark { transform:rotate(4deg); }
.shelf-text strong { display:block; font:750 20px/1.25 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.4px; margin-bottom:4px; }
.shelf-text span { display:block; font:15px/1.5 var(--reading-font); color:#5e6b60; }
.shelf-go { color:var(--tone); font-size:20px; }
.shelf-card[data-tone=history] { --tone:#7a5330; --tint:#f3e6d3; }
.shelf-card[data-tone=facts] { --tone:#176858; --tint:#dff1e9; }
.shelf-card[data-tone=glossary] { --tone:#34657c; --tint:#e3edf3; }
.shelf-card[data-tone=works] { --tone:#0d6386; --tint:#dcedf5; }
.lab-grid + section .section-head, section + section .section-head { margin-top:70px; }

/* ---------- Reference pages: shared ---------- */
.reference-body { margin:54px 0 0; }
.reference-lede { max-width:650px; margin:0 auto 38px; font:400 20px/1.75 var(--reading-font); color:#34453e; }
.reference-lede p { margin:0 0 20px; }
.reference-lede a, .reference-body a { color:var(--accent); text-decoration-color:var(--accent-line); text-decoration-thickness:1px; }
.reference-lede a:hover, .reference-body a:hover { text-decoration-color:var(--accent); }
.ref-chips { display:flex; flex-wrap:wrap; gap:9px; margin:0 0 12px; padding:0; list-style:none; }
.ref-chips a { display:inline-flex; align-items:center; gap:8px; min-height:40px; padding:7px 15px; border:1px solid var(--accent-line); border-radius:30px; background:var(--wash); color:var(--accent); font:650 13px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; text-decoration:none; }
.ref-chips a:hover { border-color:var(--accent); }
.ref-chips a small { font-weight:500; color:#6d7a72; }
.src { display:block; font:12.5px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#6b776f; }
.src a { color:#55635b !important; text-decoration-color:#c5cdc4 !important; }
.src a:hover { color:var(--accent) !important; }
.reference-close { margin-top:54px; }
.how-we-check { max-width:650px; margin:60px auto 0; padding:26px 28px; background:var(--wash); border:1px dashed var(--accent-line); border-radius:6px 24px 6px 24px; }
.how-we-check h2 { font:750 22px/1.25 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.4px; margin:0 0 10px; color:var(--ink); }
.how-we-check p { font:16px/1.7 var(--reading-font); color:#44554d; margin:0 0 10px; }
.how-we-check p:last-child { margin:0; }
.badge { display:inline-block; vertical-align:2px; margin-left:8px; padding:3px 9px; border-radius:20px; font:700 10px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.08em; text-transform:uppercase; }
.badge.legend { background:#fde9c9; color:#84520d; }
.badge.disputed { background:#ece6f7; color:#5b4692; }

/* ---------- Timeline ---------- */
.era { --era:#7a5330; --era-soft:#f3e6d3; margin:64px 0 0; scroll-margin-top:20px; }
.era:nth-of-type(2) { --era:#645199; --era-soft:#eae4f8; }
.era:nth-of-type(3) { --era:#1d6a72; --era-soft:#dcf0f1; }
.era:nth-of-type(4) { --era:#3f4f9c; --era-soft:#e3e7f9; }
.era:nth-of-type(5) { --era:#b0452a; --era-soft:#fde2d6; }
.era-head { display:grid; grid-template-columns:auto 1fr; gap:24px; align-items:center; padding:26px 30px; background:var(--era-soft); border-radius:6px 30px 6px 30px; }
.era-numeral { font:850 68px/.9 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.06em; color:var(--era); transform:rotate(-7deg); min-width:64px; text-align:center; }
.era-head .eyebrow { color:var(--era); margin:0 0 7px; font-size:11px; }
.era-head h2 { font:750 31px/1.15 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.9px; margin:0 0 7px; color:var(--ink); }
.era-head p { font:17px/1.6 var(--reading-font); color:#4c5b54; margin:0; }
.timeline { position:relative; list-style:none; margin:14px 0 0; padding:0; }
.timeline::before { content:""; position:absolute; left:109px; top:26px; bottom:26px; width:2px; background:linear-gradient(var(--era-soft),var(--era) 12%,var(--era) 88%,var(--era-soft)); opacity:.45; }
.event { position:relative; display:grid; grid-template-columns:92px 1fr; gap:38px; padding:24px 0 6px; scroll-margin-top:20px; }
.event::before { content:""; position:absolute; left:103px; top:31px; width:14px; height:14px; border-radius:50%; background:var(--paper); border:3px solid var(--era); box-sizing:border-box; }
.event-year { text-align:right; padding-top:4px; font:800 16px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:var(--era); font-variant-numeric:tabular-nums; letter-spacing:-.2px; }
.event-year small { display:block; font-size:10px; font-weight:650; letter-spacing:.08em; text-transform:uppercase; opacity:.8; }
.event h3 { font:750 22px/1.25 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.5px; margin:0 0 9px; color:#293c32; }
.event p { font:17.5px/1.72 var(--reading-font); color:#34453e; margin:0 0 10px; }
.event .try { display:inline-block; margin:2px 0 10px; font:650 14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
.event.milestone h3 { font-size:25px; }
.event.milestone::before { width:20px; height:20px; left:100px; top:28px; background:var(--era); box-shadow:0 0 0 5px var(--era-soft); }

/* ---------- Fact cards ---------- */
.fact-group { margin:58px 0 0; scroll-margin-top:20px; }
.fact-group > h2 { font:750 32px/1.15 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.9px; margin:0 0 6px; color:var(--ink); }
.fact-group > p { font:18px/1.6 var(--reading-font); color:#5e6b60; margin:0 0 24px; max-width:640px; }
.fact-grid { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.fact { --tone:#176858; --tint:#eff8f4; display:flex; flex-direction:column; padding:26px 26px 20px; background:#fffefa; border:1px solid var(--line); border-radius:6px 24px 6px 24px; scroll-margin-top:20px; }
.fact:nth-child(5n+2) { --tone:#645199; --tint:#f5f2fc; }
.fact:nth-child(5n+3) { --tone:#985022; --tint:#fff7ed; }
.fact:nth-child(5n+4) { --tone:#34657c; --tint:#f2f6f8; }
.fact:nth-child(5n+5) { --tone:#a03763; --tint:#fff4f7; }
.fact-figure { align-self:flex-start; margin:0 0 16px; padding:7px 14px 8px; background:var(--tint); border-radius:4px 14px 4px 14px; color:var(--tone); font:850 34px/1.05 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.045em; font-variant-numeric:tabular-nums; transform:rotate(-2deg); overflow-wrap:anywhere; }
.fact-figure small { font-size:.5em; letter-spacing:0; font-weight:750; }
.fact h3 { font:750 20px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.4px; margin:0 0 8px; color:#293c32; }
.fact p { font:16.5px/1.68 var(--reading-font); color:#3b4b44; margin:0 0 14px; }
.fact .src { margin-top:auto; padding-top:12px; border-top:1px dashed #dcdfd3; }
.fact .try { font:650 13.5px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; margin:-4px 0 14px; }

/* ---------- Glossary ---------- */
.az { display:flex; flex-wrap:wrap; gap:6px; margin:0 0 8px; padding:0; list-style:none; }
.az a { display:grid; place-items:center; width:40px; height:40px; border-radius:10px; background:var(--wash); border:1px solid var(--accent-line); color:var(--accent); font:750 15px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; text-decoration:none; }
.az a:hover { border-color:var(--accent); }
.letter { display:grid; grid-template-columns:76px 1fr; gap:26px; margin:44px 0 0; scroll-margin-top:20px; }
.letter-tile { position:sticky; top:16px; align-self:start; display:grid; place-items:center; width:64px; height:70px; border-radius:16px; background:var(--soft); color:var(--accent); font:850 40px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; transform:rotate(-5deg); box-shadow:3px 4px 0 #3259440d; }
.letter:nth-of-type(even) .letter-tile { transform:rotate(4deg); }
.terms { margin:0; }
.term { padding:4px 0 22px; margin:0 0 20px; border-bottom:1px solid var(--line); scroll-margin-top:20px; }
.term:last-child { border-bottom:0; margin-bottom:0; }
.term dt { font:750 22px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.4px; color:#293c32; margin:0 0 6px; }
.term dt small { font:500 14px/1.4 var(--reading-font); color:#6b776f; letter-spacing:0; margin-left:8px; }
.term dd { margin:0; font:17.5px/1.72 var(--reading-font); color:#34453e; }
.term dd p { margin:0 0 9px; }
.term .see { font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#5e6b60; }

/* ---------- Tables ---------- */
.table-wrap { margin:26px 0; border:1px solid var(--line); border-radius:6px 22px 6px 22px; background:#fffefa; overflow:hidden; }
.ref-table { width:100%; border-collapse:collapse; font:15.5px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
.ref-table caption { text-align:left; padding:20px 22px 4px; font:750 19px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.3px; color:#293c32; }
.ref-table caption small { display:block; margin-top:4px; font:400 13.5px/1.5 var(--reading-font); color:#6b776f; letter-spacing:0; }
.ref-table th { text-align:left; padding:14px 12px 10px; font:700 10.5px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.1em; text-transform:uppercase; color:#6b776f; border-bottom:2px solid var(--accent-line); }
.ref-table td { padding:13px 12px; border-bottom:1px solid var(--line); vertical-align:top; color:#34453e; }
.ref-table tr:last-child td { border-bottom:0; }
.ref-table th:first-child, .ref-table td:first-child { padding-left:22px; }
.ref-table th:last-child, .ref-table td:last-child { padding-right:22px; }
.ref-table .num { text-align:right; font-variant-numeric:tabular-nums; font-weight:700; white-space:nowrap; color:#293c32; }
.ref-table td strong { color:#293c32; }
.ref-table td small { display:block; color:#6b776f; font-size:12.5px; }
.ref-table .bar { display:block; height:8px; min-width:2px; border-radius:6px; background:var(--accent); opacity:.75; }

@media (max-width:900px) {
  .section-head h2 { font-size:33px; }
  .shelf-card { padding:17px 18px; gap:15px; }
  .shelf-mark { width:54px; height:54px; font-size:21px; }
}
@media (max-width:650px) {
  .section-head { margin:46px 0 22px; }
  .section-head h2 { font-size:30px; }
  .section-head p { font-size:17px; }
  .shelf-grid { grid-template-columns:1fr; gap:12px; }
  .shelf-text strong { font-size:18px; }
  .reference-body { margin-top:38px; }
  .reference-lede { font-size:19px; margin-bottom:30px; }
  .era { margin-top:46px; }
  .era-head { grid-template-columns:1fr; gap:6px; padding:22px 20px; }
  .era-numeral { font-size:46px; text-align:left; transform:rotate(-4deg); transform-origin:left; }
  .era-head h2 { font-size:26px; }
  .timeline::before { left:6px; }
  .event { grid-template-columns:1fr; gap:4px; padding:20px 0 4px 28px; }
  .event::before { left:0; top:25px; }
  .event.milestone::before { left:-3px; top:22px; }
  .event-year { text-align:left; padding:0; }
  .event-year small { display:inline; margin-left:6px; }
  .event h3 { font-size:21px; }
  .event p { font-size:17px; }
  .fact-group > h2 { font-size:28px; }
  .fact-grid { grid-template-columns:1fr; gap:16px; }
  .fact { padding:22px 20px 18px; }
  .fact-figure { font-size:30px; }
  .letter { grid-template-columns:1fr; gap:14px; margin-top:36px; }
  .letter-tile { position:static; width:52px; height:56px; font-size:32px; }
  .term dt { font-size:20px; }
  .term dd { font-size:17px; }
  .how-we-check { padding:22px 20px; margin-top:44px; }
  /* Tables become stacked cards so nothing scrolls sideways. */
  .ref-table.stack thead { position:absolute; width:1px; height:1px; overflow:hidden; clip-path:inset(50%); }
  .ref-table.stack, .ref-table.stack tbody, .ref-table.stack tr, .ref-table.stack td { display:block; width:100%; }
  .ref-table.stack tr { padding:14px 18px; border-bottom:1px solid var(--line); }
  .ref-table.stack tr:last-child { border-bottom:0; }
  .ref-table.stack td { padding:2px 0 !important; border:0; }
  .ref-table.stack td[data-label]::before { content:attr(data-label) " "; font:700 10px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.09em; text-transform:uppercase; color:#6b776f; margin-right:6px; }
  .ref-table.stack .num { text-align:left; }
  .ref-table caption { padding:18px 18px 4px; }
}

/* ---------- Experiments shared ---------- */
.bar-chart { display:flex; align-items:flex-end; gap:6px; height:190px; padding:22px 4px 0; position:relative; border-bottom:2px solid var(--accent-line); }
.bar-chart.has-expected::before { content:"even spread"; position:absolute; left:0; right:0; bottom:var(--expected); border-top:2px dashed #7b8a80; font:650 10px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.08em; text-transform:uppercase; color:#6b776f; padding-top:4px; text-align:right; pointer-events:none; }
.bar-col { flex:1 1 0; min-width:0; display:flex; flex-direction:column; align-items:center; justify-content:flex-end; height:100%; position:relative; }
.bar-col .bar { display:block; width:100%; max-width:46px; min-height:2px; border-radius:6px 6px 2px 2px; background:var(--accent); opacity:.82; transform-origin:bottom; }
.bar-col.highlight .bar { background:#d9822b; opacity:1; }
.bar-value { font:700 10.5px/1.2 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#4b5a52; margin-bottom:4px; font-variant-numeric:tabular-nums; white-space:nowrap; }
.bar-label { position:absolute; top:100%; margin-top:6px; font:650 12px/1.2 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#55635b; font-variant-numeric:tabular-nums; }
.bar-chart { margin-bottom:30px; }
.drawn .bar { animation:grow .4s backwards; animation-delay:calc(var(--i,0)*18ms); }
@keyframes grow { from { transform:scaleY(0); } }
.dense .bar-value { display:none; }
.dense .bar-label { font-size:10px; }
.readouts { display:grid; grid-template-columns:repeat(auto-fit,minmax(130px,1fr)); gap:12px; margin:22px 0 6px; }
.readout { background:#fff9; border:1px solid var(--accent-line); border-radius:14px; padding:14px 16px; min-width:0; }
.readout b { display:block; font:800 26px/1.1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.8px; color:var(--accent); font-variant-numeric:tabular-nums; overflow-wrap:anywhere; }
.readout span { display:block; font:600 11px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.06em; text-transform:uppercase; color:#6b776f; margin-top:4px; }
.demo input[type=text], .demo input[type=number] { font:inherit; min-height:44px; padding:8px 12px; border:1px solid var(--accent-line); border-radius:11px; background:#ffffffbd; color:var(--ink); width:110px; font-variant-numeric:tabular-nums; }
.demo input:focus-visible { outline:3px solid #005abb; outline-offset:3px; }
.demo .check { display:inline-flex; align-items:center; gap:10px; font:650 14px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:var(--ink); min-height:44px; padding:0 4px; }
.demo .check input { width:20px; height:20px; accent-color:var(--accent); }
.demo .sr-only { position:absolute; width:1px; height:1px; overflow:hidden; clip-path:inset(50%); }

/* Coin lab */
.coin-tally { display:grid; grid-template-columns:minmax(90px,auto) 1fr minmax(90px,auto); gap:16px; align-items:center; margin:10px 0 14px; }
.coin-tally > div { text-align:center; }
.coin-tally b { display:block; font:850 clamp(34px,6vw,54px)/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-2px; color:var(--accent); font-variant-numeric:tabular-nums; }
.coin-tally span { display:block; font:650 11px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.08em; text-transform:uppercase; color:#6b776f; margin-top:6px; }
.coin-split { position:relative; height:16px; border-radius:10px; background:#e9dcc0; overflow:hidden; margin:0 0 6px; }
.coin-split::before { content:""; position:absolute; inset:0 auto 0 0; width:var(--heads,50%); background:var(--accent); transition:width .35s; }
.coin-split::after { content:""; position:absolute; top:-4px; bottom:-4px; left:50%; width:2px; background:#5c4a1a66; }
.demo .coin-count { text-align:center; font:600 13px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#55635b; margin:0 0 16px; }
.coin-strip { display:flex; flex-wrap:wrap; gap:5px; min-height:34px; margin:0 0 6px; }
.coin-strip .coin, .coin-legend .coin { display:grid; place-items:center; width:30px; height:30px; border-radius:50%; font:750 12px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
.coin.head { background:#f6d98a; color:#7a560e; border:2px solid #d9b45a; }
.coin.tail { background:#fff; color:#6d6150; border:2px solid #cfc3ad; }
.dealt .coin { animation:deal-in .3s backwards; animation-delay:calc(var(--i,0)*12ms); }

/* Seven */
.pick-row { display:grid; grid-template-columns:repeat(5,1fr); gap:9px; margin:18px 0 6px; }
.pick-row button { min-height:56px; border-radius:12px; border:1px solid var(--accent-line); background:#fff; color:var(--ink); font:800 22px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; box-shadow:0 3px 0 #7a3a5a14; }
.pick-row button:hover { border-color:var(--accent); }
.pick-row button[aria-pressed=true] { background:var(--accent); color:#fff; border-color:var(--accent); }
.demo .bar-chart.two { max-width:360px; }
.bar-chart.two .bar-label { white-space:normal; text-align:center; width:140px; font-size:11px; line-height:1.3; }
.bar-chart.two { margin-bottom:52px; }
.demo .reveal-note { font:600 16px/1.6 var(--reading-font); color:#3c4a44; margin:16px 0 8px; }
.demo .section-label { display:block; font:700 11px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); margin:26px 0 10px; }

/* Middle square tape */
.ms-controls { display:flex; flex-wrap:wrap; gap:12px; align-items:end; margin:18px 0; }
.ms-controls label { display:flex; flex-direction:column; gap:7px; font:650 12px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
.ms-tape { list-style:none; margin:0; padding:14px 18px; max-height:360px; overflow:auto; background:#fff; border:1px solid var(--accent-line); border-radius:12px; font:600 15px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace; color:#3c4455; }
.ms-tape li { display:grid; grid-template-columns:auto auto 1fr auto auto; gap:10px; align-items:center; padding:5px 0; border-bottom:1px dashed #e4e6f1; }
.ms-tape li:last-child { border-bottom:0; }
.ms-tape .ms-square { letter-spacing:.06em; color:#8a90a8; }
.ms-tape .ms-square b { color:var(--accent); background:#e8ebfb; border-radius:4px; padding:0 2px; }
.ms-tape .ms-next, .ms-tape .ms-value { color:var(--ink); }
.ms-tape .ms-op, .ms-tape .ms-arrow { color:#a2a7bd; }
.ms-tape li.in-loop { background:linear-gradient(90deg,#fff2d6,transparent); margin:0 -8px; padding-inline:8px; border-radius:6px; }
.ms-tape li.in-loop .ms-next { color:#9a5a10; }
.dealt li { animation:deal-in .3s backwards; animation-delay:calc(var(--i,0)*20ms); }
.demo .ms-summary { font:600 15px/1.6 var(--reading-font); color:#3c4a44; margin:14px 0 0; }

/* Lava wall */
.lava-stage { position:relative; margin:18px 0 14px; }
#lava-canvas { display:block; width:100%; height:auto; border-radius:14px; border:1px solid var(--accent-line); background:#2a1b2e; }
#lava-canvas.flash { animation:flash .5s; }
@keyframes flash { 0% { filter:brightness(1); } 15% { filter:brightness(2.2); } 100% { filter:brightness(1); } }
.lava-out { display:grid; grid-template-columns:1fr auto; gap:16px; align-items:center; margin:14px 0 0; }
.lava-digest { font:600 13px/1.6 ui-monospace,SFMono-Regular,Menlo,monospace; color:#6a4a40; overflow-wrap:anywhere; background:#fff; border:1px solid var(--accent-line); border-radius:10px; padding:12px 14px; min-height:68px; }
.lava-digest small { display:block; font:650 10px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.08em; text-transform:uppercase; color:#8c6f66; margin-bottom:4px; }
.lava-number { display:grid; place-items:center; width:96px; height:96px; border-radius:50%; background:var(--accent); color:#fff; font:850 40px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-1px; box-shadow:0 10px 24px #b0452a33; }

/* Weighted drum */
.fix-machines { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin:18px 0 10px; }
.fix-tube { position:relative; list-style:none; margin:0; padding:10px 8px 8px; height:230px; display:flex; flex-direction:column-reverse; align-items:center; gap:3px; background:linear-gradient(#fff6,#fff3), #efe3e6; border:1px solid var(--accent-line); border-radius:40px 40px 14px 14px; overflow:hidden; }
.fix-tube li { width:30px; height:30px; display:grid; place-items:center; border-radius:50%; background:#fff; border:2px solid #d9bcc4; font:750 12px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#5e3b46; transition:transform .5s, background .3s; }
.fix-tube li.up { position:absolute; top:10px; transform:scale(1.25); background:#ffd86b; border-color:#c9951f; color:#6c4a05; z-index:2; }
.painted .fix-tube li:not(.light) { background:#e7e3e0; color:#9a8f94; border-color:#cfc6c9; }
.fix-result { display:flex; justify-content:center; gap:12px; margin:14px 0; }
.fix-result b { display:grid; place-items:center; width:62px; height:72px; border-radius:12px; background:#fff; border:1px solid var(--accent-line); font:850 36px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:var(--accent); font-variant-numeric:tabular-nums; }
.fix-result.reveal b { animation:pop .4s; }
@keyframes pop { 40% { transform:scale(1.08); } }
.fix-ledgers { display:grid; grid-template-columns:1fr 1fr; gap:14px; margin:18px 0 0; }
.fix-ledger { background:#fff9; border:1px solid var(--accent-line); border-radius:14px; padding:14px 16px; }
.fix-ledger h3 { font:750 14px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; margin:0 0 4px; }
.fix-ledger p { font:600 12px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#6b776f; margin:0 0 8px; }
.fix-ledger ul { list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; gap:6px; }
.fix-ledger li { font:700 14px/1 ui-monospace,SFMono-Regular,Menlo,monospace; padding:6px 8px; border-radius:7px; background:#fff; border:1px solid #e5d6da; color:#4a3a40; }
.fix-ledger li.only-46 { background:#fff0c7; border-color:#dcb75a; color:#6c4a05; }

/* Deck bars */
.deck-bars { display:flex; align-items:flex-end; gap:2px; height:120px; padding:8px; background:#fff; border:1px solid var(--accent-line); border-radius:12px; margin:18px 0 10px; }
.deck-bars span { flex:1 1 0; height:100%; border-radius:3px 3px 1px 1px; background:hsl(var(--hue) 65% 55%); }
.dealt.deck-bars span { animation:deal-in .35s backwards; animation-delay:calc(var(--i,0)*6ms); }

/* Dice */
.dice-controls, .lot-controls { display:flex; flex-wrap:wrap; gap:14px; align-items:end; margin:18px 0; }
.dice-controls label, .lot-controls label { display:flex; flex-direction:column; gap:7px; font:650 12px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
.demo .chart-title { font:700 11px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.1em; text-transform:uppercase; color:#6b776f; margin:18px 0 4px; }

/* Lottery */
.demo .lot-odds { font:850 clamp(30px,5vw,48px)/1.1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-1.5px; color:var(--accent); font-variant-numeric:tabular-nums; margin:12px 0 10px; overflow-wrap:anywhere; }
.lot-compare { margin:0; padding-left:22px; font:16px/1.65 var(--reading-font); color:#3c4a44; }
.lot-compare li { margin:6px 0; }

/* Bench */
.demo .bench-stat, .demo .bench-verdict { font:16px/1.65 var(--reading-font); color:#3c4a44; margin:14px 0 6px; }
.demo .bench-verdict { padding:12px 14px; background:#fff; border-left:3px solid var(--accent); border-radius:0 10px 10px 0; }

/* ---------- Hero and card art for newer pages ---------- */
.art-coin .big-coin { position:absolute; left:calc(50% - 72px); top:58px; width:144px; height:144px; border-radius:50%; background:radial-gradient(circle at 35% 30%,#ffe9a8,#e4b84c 60%,#b8872a); border:7px double #c99a3a; box-shadow:0 18px 30px #6b4a0f2e; display:grid; place-items:center; font:850 70px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#8a5a12; transform:rotate(-14deg); }
.art-coin .arc { position:absolute; width:210px; height:210px; left:calc(50% - 105px); top:26px; border-radius:50%; border:2px dashed #c9a24a55; }
.art-coin .arc.two { width:250px; height:250px; left:calc(50% - 125px); top:6px; border-color:#c9a24a33; }
.art-coin .art-bubble { background:#fff; color:#7a560e; }
.art-seven .hand { position:absolute; left:50%; top:64px; display:flex; gap:6px; transform:translateX(-50%); }
.art-seven .hand span { display:grid; place-items:center; width:46px; height:66px; border-radius:9px; background:#fff; border:1px solid #ecc2d1; font:800 24px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#8d5a6c; box-shadow:0 8px 16px #7a3a5a14; transform:rotate(calc(var(--r)*1deg)) translateY(calc(var(--y)*1px)); }
.art-seven .hand span.lift { background:#a03763; color:#fff; border-color:#a03763; box-shadow:0 14px 22px #a0376344; }
.art-seven .art-bubble { background:#ffe3ec; color:#7c2a4c; right:18px; top:24px; }
.art-machine .tape { position:absolute; left:calc(50% - 110px); top:52px; width:220px; padding:18px 16px; background:#fff; border:1px solid #c7cdee; border-radius:6px; font:700 17px/1.9 ui-monospace,SFMono-Regular,Menlo,monospace; color:#5a628a; box-shadow:0 14px 26px #3f4f9c1f; transform:rotate(-5deg); }
.art-machine .tape b { color:#3f4f9c; background:#e3e7f9; border-radius:4px; padding:0 3px; }
.art-machine .tape em { display:block; font:italic 12px/1.6 var(--reading-font); color:#8a90a8; margin-top:4px; }
.art-machine .art-bubble { background:#fff; color:#3f4f9c; top:auto; bottom:20px; right:18px; }
.art-lava .lamp { position:absolute; bottom:28px; width:62px; height:170px; border-radius:30px 30px 10px 10px; overflow:hidden; box-shadow:0 14px 24px #b0452a2e; }
.art-lava .lamp.one { left:calc(50% - 110px); background:linear-gradient(#5a2b3f,#3a1a2c); }
.art-lava .lamp.two { left:calc(50% - 31px); height:195px; background:linear-gradient(#4f2a1a,#2f1710); }
.art-lava .lamp.three { left:calc(50% + 48px); background:linear-gradient(#3a2a5a,#241a3a); }
.art-lava .lamp i { position:absolute; left:50%; width:40px; height:40px; margin-left:-20px; border-radius:50% 46% 48% 52%; background:#ff8a4a; box-shadow:0 0 18px #ff8a4a88; }
.art-lava .lamp.two i { background:#ffb14a; box-shadow:0 0 18px #ffb14a88; }
.art-lava .lamp.three i { background:#ff5fa0; box-shadow:0 0 18px #ff5fa088; }
.art-lava .lamp i:nth-child(1) { top:22px; width:30px; height:30px; margin-left:-15px; }
.art-lava .lamp i:nth-child(2) { top:72px; }
.art-lava .lamp i:nth-child(3) { top:124px; width:48px; height:34px; margin-left:-24px; }
.art-lava .art-bubble { background:#fff; color:#8a3a22; right:16px; top:26px; }
.art-fix .tubes { position:absolute; left:50%; top:46px; display:flex; gap:12px; transform:translateX(-50%); }
.art-fix .tubes span { display:flex; align-items:flex-start; justify-content:center; width:58px; height:180px; padding-top:12px; border-radius:28px 28px 10px 10px; background:#fff; border:1px solid #e3c3cb; box-shadow:0 12px 22px #7d3a4c1f; font:850 30px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#7d3a4c; }
.art-fix .tubes span::after { content:""; display:block; position:absolute; bottom:14px; width:44px; height:44px; border-radius:50%; background:repeating-radial-gradient(circle,#e9d4d8 0 3px,transparent 3px 7px); opacity:.8; }
.art-fix .tubes span b { display:grid; place-items:center; width:36px; height:36px; border-radius:50%; background:#ffd86b; border:2px solid #c9951f; color:#6c4a05; font-size:20px; }
.art-fix .art-bubble { background:#fff; color:#7d3a4c; top:auto; bottom:18px; right:16px; }
.art-shuffle .fan { position:absolute; left:50%; top:70px; width:0; }
.art-shuffle .fan span { position:absolute; left:-40px; width:80px; height:112px; border-radius:10px; background:#fff; border:1px solid #b9d9db; box-shadow:0 10px 20px #1d6a721f; transform-origin:50% 120%; transform:rotate(calc(var(--r)*1deg)); display:grid; place-items:center; font:800 26px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:var(--c,#1d6a72); }
.art-shuffle .art-bubble { background:#fff; color:#1d6a72; right:14px; top:22px; }
.art-dice .die { position:absolute; width:96px; height:96px; border-radius:20px; background:#fff; box-shadow:0 14px 26px #a63a4526; display:grid; grid-template-columns:repeat(3,1fr); padding:14px; gap:4px; }
.art-dice .die i { border-radius:50%; background:#a63a45; }
.art-dice .die.one { left:calc(50% - 112px); top:78px; transform:rotate(-14deg); }
.art-dice .die.two { left:calc(50% + 6px); top:62px; transform:rotate(11deg); background:#a63a45; }
.art-dice .die.two i { background:#fff; }
.art-dice .art-bubble { background:#fff; color:#a63a45; }
.art-lottery .ticket { position:absolute; left:calc(50% - 100px); top:56px; width:200px; padding:18px 18px 16px; background:#fffdf3; border:1px solid #e6d59b; border-radius:8px; box-shadow:0 14px 26px #76590a1f; transform:rotate(-6deg); }
.art-lottery .ticket small { display:block; font:750 8px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.14em; color:#8a6f1a; }
.art-lottery .ticket .balls { display:flex; gap:6px; margin:12px 0 10px; }
.art-lottery .ticket .balls span { display:grid; place-items:center; width:28px; height:28px; border-radius:50%; background:#fff; border:2px solid #d9c46a; font:750 12px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#6b5210; }
.art-lottery .ticket .balls span:last-child { background:#c9302c; border-color:#c9302c; color:#fff; }
.art-lottery .ticket b { display:block; font:850 15px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#76590a; letter-spacing:-.3px; }
.art-lottery .art-bubble { background:#fff; color:#76590a; top:auto; bottom:20px; right:14px; }
.art-words .speech { position:absolute; padding:10px 14px; border-radius:16px 16px 16px 3px; background:#fff; border:1px solid #cdc8ee; font:750 17px/1.2 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#5a4fb0; box-shadow:0 8px 16px #5a4fb01a; }
.art-words .speech.a { left:calc(50% - 128px); top:40px; transform:rotate(-6deg); }
.art-words .speech.b { left:calc(50% + 8px); top:68px; transform:rotate(5deg); background:#efe9ff; }
.art-words .speech.c { left:calc(50% - 90px); top:124px; transform:rotate(3deg); background:#fff4d6; color:#8a5a12; border-color:#ead29c; }
.art-words .speech.d { left:calc(50% + 32px); top:154px; transform:rotate(-4deg); }
.art-words .little-coin { position:absolute; left:calc(50% - 26px); top:198px; width:52px; height:52px; border-radius:50%; background:radial-gradient(circle at 35% 30%,#ffe9a8,#e4b84c 60%,#b8872a); border:4px double #c99a3a; }
.art-history .relic { position:absolute; display:grid; place-items:center; background:#fff; box-shadow:0 12px 22px #7a533022; }
.art-history .bone { left:calc(50% - 128px); top:92px; width:70px; height:50px; border-radius:40% 60% 50% 50%; background:#f3e6d3; font:750 11px -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#7a5330; transform:rotate(-16deg); }
.art-history .cube { left:calc(50% - 44px); top:70px; width:84px; height:84px; border-radius:18px; transform:rotate(9deg); display:grid; grid-template-columns:repeat(3,1fr); padding:12px; gap:3px; }
.art-history .cube i { border-radius:50%; background:#7a5330; }
.art-history .chip { left:calc(50% + 54px); top:112px; width:66px; height:66px; border-radius:16px; background:#3f4f9c; color:#fff; font:700 10px/1.3 ui-monospace,monospace; text-align:center; transform:rotate(-7deg); }
.art-history .art-bubble { background:#fff; color:#7a5330; right:18px; top:28px; }
.art-facts .stack { position:absolute; left:50%; top:52px; transform:translateX(-50%); }
.art-facts .stack span { position:absolute; left:-80px; width:160px; padding:14px 16px; border-radius:6px 16px 6px 16px; background:#fff; border:1px solid #b7d8cb; box-shadow:0 10px 20px #17685820; font:850 26px/1.1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.04em; color:#176858; }
.art-facts .stack span small { display:block; font:600 10px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:.04em; color:#5e6b60; margin-top:4px; }
.art-facts .stack span:nth-child(1) { top:0; transform:rotate(-8deg); }
.art-facts .stack span:nth-child(2) { top:64px; left:-56px; transform:rotate(5deg); color:#645199; border-color:#cfc4e6; }
.art-facts .stack span:nth-child(3) { top:134px; left:-96px; transform:rotate(-3deg); color:#985022; border-color:#e4c5a5; }
.art-glossary .tiles { position:absolute; left:50%; top:54px; width:216px; transform:translateX(-50%) rotate(-6deg); display:grid; grid-template-columns:repeat(4,1fr); gap:8px; }
.art-glossary .tiles span { display:grid; place-items:center; height:48px; border-radius:10px; background:#fff; border:1px solid #bdd0da; box-shadow:0 6px 12px #34657c1a; font:800 22px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#34657c; }
.art-glossary .tiles span:nth-child(6), .art-glossary .tiles span:nth-child(11) { background:#34657c; color:#fff; }
.art-glossary .art-bubble { background:#fff; color:#34657c; top:auto; bottom:18px; right:16px; }
.art-works .gears { position:absolute; left:50%; top:60px; transform:translateX(-50%); display:flex; align-items:flex-end; gap:8px; height:150px; }
.art-works .gears span { width:30px; border-radius:6px 6px 2px 2px; background:#0d6386; opacity:.85; height:calc(var(--h)*1%); box-shadow:0 8px 14px #0d638622; }
.art-works .gears span:nth-child(even) { background:#4e9bb8; }
.art-works .line { position:absolute; left:calc(50% - 120px); width:240px; top:112px; border-top:2px dashed #0d638688; }
.art-works .art-bubble { background:#fff; color:#0d6386; }

/* Compact card art for the hub */
.story-art.coin { background:linear-gradient(120deg,#fff3d6,#fde9c0); }
.story-art.coin span { color:#8a5a12; border-radius:50%; width:78px; height:78px; font-size:34px; }
.story-art.seven { background:linear-gradient(120deg,#ffe6ee,#fdf0f4); }
.story-art.seven span { color:#a03763; }
.story-art.machine { background:linear-gradient(120deg,#e6e9fb,#eef0fc); font:700 17px/1.8 ui-monospace,monospace; letter-spacing:.1em; color:#3f4f9c; }
.story-art.lava { background:linear-gradient(120deg,#ffe6dc,#fff0e8); }
.story-art.lava span { border-radius:46% 54% 50% 50%; background:#ff8a4a; color:#fff; font-size:22px; width:64px; height:64px; box-shadow:0 0 18px #ff8a4a66; }
.story-art.fix { background:linear-gradient(120deg,#f7e3e8,#fbeef1); }
.story-art.fix span { color:#7d3a4c; border-radius:50%; width:70px; height:70px; font-size:36px; background:#ffd86b; }
.story-art.shuffle { background:linear-gradient(120deg,#dff1f2,#eaf6f6); }
.story-art.shuffle span { color:#1d6a72; font-size:30px; }
.story-art.dice { background:linear-gradient(120deg,#fde3e5,#fff0f1); }
.story-art.dice span { color:#a63a45; font-size:40px; }
.story-art.lottery { background:linear-gradient(120deg,#f7ecc3,#fdf6dc); }
.story-art.lottery span { color:#76590a; border-radius:50%; width:60px; height:60px; font-size:24px; }
.story-art.words { background:linear-gradient(120deg,#e7e4f9,#f1effc); }
.story-art.words span { color:#5a4fb0; font-size:20px; width:auto; padding:0 14px; border-radius:16px 16px 16px 3px; }
.story-art.history { background:linear-gradient(120deg,#f3e6d3,#f9f1e5); }
.story-art.history span { color:#7a5330; font-size:26px; }
.story-art.facts { background:linear-gradient(120deg,#dff1e9,#edf7f2); }
.story-art.facts span { color:#176858; font-size:24px; width:auto; padding:0 12px; }
.story-art.glossary { background:linear-gradient(120deg,#e3edf3,#eef4f7); }
.story-art.glossary span { color:#34657c; font-size:34px; }
.story-art.works { background:linear-gradient(120deg,#dcedf5,#ebf4f9); }
.story-art.works span { color:#0d6386; font-size:30px; }

@media (max-width:650px) {
  .readouts { grid-template-columns:1fr 1fr; }
  .bar-chart { height:150px; gap:3px; }
  .bar-value { font-size:9px; }
  .pick-row { gap:6px; }
  .pick-row button { min-height:48px; font-size:19px; }
  .fix-machines { gap:8px; }
  .fix-tube { height:200px; }
  .fix-tube li { width:24px; height:24px; font-size:10px; }
  .fix-ledgers { grid-template-columns:1fr; }
  .lava-out { grid-template-columns:1fr; }
  .lava-number { justify-self:center; }
  .ms-tape li { grid-template-columns:auto auto 1fr; font-size:13px; }
  .ms-tape .ms-arrow, .ms-tape .ms-next { grid-column:auto; }
  .art-coin .big-coin { width:112px; height:112px; left:calc(50% - 56px); top:36px; font-size:54px; }
  .art-coin .arc { width:160px; height:160px; left:calc(50% - 80px); top:12px; }
  .art-coin .arc.two { width:190px; height:190px; left:calc(50% - 95px); top:-3px; }
  .art-seven .hand span { width:34px; height:50px; font-size:18px; }
  .art-machine .tape { width:190px; font-size:14px; top:30px; }
  .art-lava .lamp { height:120px; bottom:14px; width:50px; }
  .art-lava .lamp.two { height:140px; }
  .art-lava .lamp i:nth-child(3) { top:84px; }
  .art-fix .tubes span { width:46px; height:130px; font-size:24px; }
  .art-shuffle .fan span { width:64px; height:90px; font-size:20px; }
  .art-dice .die { width:74px; height:74px; padding:10px; }
  .art-dice .die.one { left:calc(50% - 90px); top:52px; }
  .art-dice .die.two { left:calc(50% + 6px); top:44px; }
  .art-lottery .ticket { width:170px; top:34px; }
  .art-words .speech { font-size:14px; }
  .art-words .speech.a { left:calc(50% - 110px); top:20px; }
  .art-words .speech.b { left:calc(50% + 4px); top:44px; }
  .art-words .speech.c { left:calc(50% - 80px); top:86px; }
  .art-words .speech.d { left:calc(50% + 20px); top:112px; }
  .art-words .little-coin { top:140px; }
  .art-history .bone { left:calc(50% - 110px); top:60px; }
  .art-history .cube { top:40px; width:68px; height:68px; }
  .art-history .chip { left:calc(50% + 44px); top:76px; width:54px; height:54px; }
  .art-facts .stack span { width:136px; font-size:21px; left:-68px; }
  .art-facts .stack span:nth-child(2) { top:52px; left:-48px; }
  .art-facts .stack span:nth-child(3) { top:106px; left:-84px; }
  .art-glossary .tiles { top:30px; width:180px; }
  .art-glossary .tiles span { height:38px; font-size:18px; }
  .art-works .gears { height:110px; top:40px; }
  .art-works .line { top:78px; }
}

/* ---------- Heads or tails around the world ---------- */
.coin-world { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.coin-card { display:flex; flex-direction:column; padding:24px 24px 20px; background:#fffefa; border:1px solid var(--line); border-radius:6px 24px 6px 24px; scroll-margin-top:20px; }
.coin-card .eyebrow { margin:0 0 10px; font-size:11px; color:var(--accent); }
.coin-card .regions { text-transform:none; letter-spacing:0; font-weight:600; color:#6b776f; }
.coin-card .phrase { font:800 clamp(24px,3vw,30px)/1.2 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; letter-spacing:-.6px; color:#293c32; margin:0 0 4px; overflow-wrap:anywhere; }
.coin-card .roman { font:italic 15px/1.5 var(--reading-font); color:#6b776f; margin:0 0 12px; }
.coin-card .sides { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin:12px 0 14px; }
.coin-card .side { display:grid; grid-template-columns:auto 1fr; grid-template-rows:auto auto; column-gap:10px; align-items:center; padding:10px 12px; background:var(--wash); border:1px solid var(--accent-line); border-radius:12px; }
.coin-card .face { grid-row:1 / 3; display:grid; place-items:center; width:30px; height:30px; border-radius:50%; background:radial-gradient(circle at 35% 30%,#ffe9a8,#e4b84c 60%,#b8872a); color:#7a560e; font-size:10px; }
.coin-card .face.tail { background:radial-gradient(circle at 35% 30%,#fff,#e6e1d2 60%,#bfb59d); color:#6d6150; }
.coin-card .side b { font:750 16px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; color:#293c32; overflow-wrap:anywhere; }
.coin-card .side small { font:13px/1.4 var(--reading-font); color:#5e6b60; }
.coin-card .origin { font:16px/1.65 var(--reading-font); color:#3b4b44; margin:0 0 14px; }
.coin-card .flip { align-self:flex-start; font:650 14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; margin-bottom:12px; }
.coin-card .src { margin-top:auto; padding-top:12px; border-top:1px dashed #dcdfd3; }
@media (max-width:650px) { .coin-world { grid-template-columns:1fr; gap:16px; } .coin-card { padding:20px 18px 16px; } .coin-card .sides { grid-template-columns:1fr; } }
.demo select { max-width:100%; }
.lot-controls label, .dice-controls label { min-width:0; max-width:100%; }
@media (max-width:650px) {
  .lot-controls label:first-child { flex:1 1 100%; }
  .lot-controls label:first-child select { width:100%; }
  .ref-table.stack thead th { display:none; }
}
.ref-table .num small { white-space:normal; font-weight:400; }
.ref-table td small.note { margin-top:6px; color:#5e6b60; font-style:italic; max-width:340px; }
.ref-table td:nth-child(2) { min-width:130px; }
@media (max-width:650px) { .ref-table.stack caption { display:block; width:100%; box-sizing:border-box; } .ref-table td:nth-child(2) { min-width:0; } }
.ref-table td[data-label="Checked"] a { white-space:nowrap; }

/* ===================== Plates: pictures drawn from each page's own subject ===================== */
.eyebrow { text-transform:none; letter-spacing:-.01em; font-size:14px; font-weight:650; color:var(--accent,#176858); }
.story-text .eyebrow, .related .eyebrow { font-size:13px; }
img.plate { display:block; width:100%; height:auto; }

/* Article and reference heroes: text on paper, the plate mounted beside it. */
.plate-hero { display:grid; grid-template-columns:minmax(0,1.08fr) minmax(0,1fr); gap:56px; align-items:center; padding:30px 0 50px; }
.plate-hero h1 { font-size:clamp(36px,4.6vw,56px); line-height:1.04; letter-spacing:-.045em; margin:0 0 20px; text-wrap:balance; }
.plate-hero .eyebrow { margin:0 0 14px; }
.plate-hero .lead { font:20px/1.6 var(--reading-font); color:#3d4b45; margin:0; max-width:34em; }
.plate-hero .jump-demo { margin-top:22px; color:var(--accent); }
.plate-hero .jump-demo span { border-color:var(--accent-line); background:var(--wash); }
.plate-hero .meta { font-size:12px; margin-top:18px; }
.plate-frame { margin:0; padding:9px; background:#fff; border-radius:30px; box-shadow:0 1px 2px #1b25360f, 0 26px 50px -26px color-mix(in srgb, var(--accent,#176858) 55%, transparent); transform:rotate(1.1deg); }
.plate-frame img.plate { border-radius:22px; aspect-ratio:4/3; object-fit:cover; }
.article .plate-hero + .story-opening { margin-top:28px; }

/* Cards. */
.story img.plate { aspect-ratio:16/10; object-fit:cover; border-bottom:1px solid #00000010; }
.related-card img.plate { aspect-ratio:16/9; object-fit:cover; }
.related h2 { margin-top:0; }
.shelf-card { grid-template-columns:auto 1fr auto; }
.shelf-plate { width:84px; height:84px; object-fit:cover; border-radius:18px; box-shadow:0 8px 18px -10px #1b253640; transform:rotate(-3deg); }
.shelf-card:nth-child(even) .shelf-plate { transform:rotate(3deg); }
.shelf-card:hover .shelf-plate { transform:rotate(0) scale(1.04); transition:transform .2s; }

/* Hub: the welcome, and a mosaic of six plates that shows what the Lab is made of. */
.hub-hero { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1.12fr); gap:52px; align-items:center; padding:40px 0 18px; }
.hub-hero h1 { font-size:clamp(40px,5.2vw,64px); line-height:1.02; letter-spacing:-.05em; margin:0 0 22px; }
.hub-hero .lead { font:21px/1.6 var(--reading-font); color:#3d4b45; margin:0 0 18px; max-width:30em; }
.hub-note { font:15px/1.6 var(--reading-font); color:#65716a; margin:0; max-width:32em; padding-left:14px; border-left:3px solid #e2e3d8; }
.hub-mosaic { display:grid; grid-template-columns:repeat(3,1fr); grid-template-rows:repeat(3,auto); gap:12px; }
.hub-mosaic a { display:block; border-radius:20px; overflow:hidden; box-shadow:0 14px 28px -20px #1b253666; }
.hub-mosaic a:first-child { grid-column:span 2; grid-row:span 2; border-radius:26px; }
.hub-mosaic img.plate { aspect-ratio:4/3; object-fit:cover; height:100%; }
.hub-mosaic a:hover img { transform:scale(1.03); transition:transform .3s; }
.section-head h2 { margin-bottom:8px; }

@media (prefers-reduced-motion:reduce) { .shelf-card:hover .shelf-plate, .hub-mosaic a:hover img { transform:none; } }
@media (max-width:900px) {
  .plate-hero { gap:34px; }
  .hub-hero { grid-template-columns:1fr; gap:30px; }
  /* Stacked: one row of three, so the welcome isn't buried under pictures. */
  .hub-mosaic { grid-template-columns:1.5fr 1fr 1fr; grid-template-rows:auto; }
  .hub-mosaic a:first-child { grid-column:auto; grid-row:auto; border-radius:20px; }
  .hub-mosaic a:nth-child(n+4) { display:none; }
}
@media (max-width:700px) {
  .plate-hero { grid-template-columns:1fr; gap:22px; padding:18px 0 34px; }
  .plate-hero .plate-frame { order:-1; transform:none; padding:6px; border-radius:24px; }
  .plate-frame img.plate { aspect-ratio:16/10; border-radius:19px; }
  .plate-hero h1 { font-size:36px; }
  .plate-hero .lead { font-size:18px; }
  .hub-hero { padding-top:24px; }
  .hub-hero h1 { font-size:40px; }
  .hub-hero .lead { font-size:18px; }
  .hub-mosaic { gap:8px; }
  .hub-mosaic a { border-radius:14px; }
  .hub-mosaic a:first-child { border-radius:18px; }
  .shelf-plate { width:64px; height:64px; border-radius:14px; }
}
/* Wide screens: a three-across library instead of tall pairs. */
@media (min-width:1000px) {
  main > section .lab-grid { grid-template-columns:repeat(3,1fr); gap:26px; }
  main > section .lab-grid .story h2 { font-size:23px; letter-spacing:-.5px; }
  main > section .lab-grid .story-text { padding:22px 24px 26px; }
  main > section .lab-grid .story-text > p:not(.eyebrow) { font-size:16px; }
}
/* Inline hero plates (animated): same box as the image plates. */
svg.plate-live { display:block; width:100%; height:auto; }
.plate-frame svg.plate-live { border-radius:22px; aspect-ratio:4/3; }
.hub-mosaic svg.plate-live { aspect-ratio:4/3; height:100%; }
.hub-mosaic a:hover svg.plate-live { transform:scale(1.03); transition:transform .3s; }
@media (max-width:700px) { .plate-frame svg.plate-live { aspect-ratio:16/10; border-radius:19px; } }