/* learn.nandalogic.com: shared styles
   Brain / Computer / Quantum hues validated for colorblind separation (light + dark).
   Text stays in ink colors; hues mark identity on swatches, borders and fills. */

:root {
  color-scheme: light dark;
  --bg: #fbfaf7;
  --surface: #ffffff;
  --surface-2: #f2f0eb;
  --ink: #1b1d22;
  --ink-2: #464a53;
  --ink-3: #6a6f79;
  --line: #dedad2;
  --focus: #1b1d22;

  --brain: #c4511a;
  --brain-soft: #fbe9df;
  --computer: #2563c9;
  --computer-soft: #e3ecfa;
  --quantum: #a83d9c;
  --quantum-soft: #f6e4f3;

  --on: #f2b01e;      /* logic 1 fill (always paired with a "1" label) */
  --on-ink: #1b1d22;
  --off: #d4d6db;     /* logic 0 fill */
  --off-ink: #1b1d22;

  --good: #1f7a3d;
  --moderate: #2f6f8f;
  --loose: #9a6200;
  --weak: #b42318;

  --radius: 12px;
  --tap: 44px;
  --measure: 44rem;
  --header-h: 3.25rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15171c;
    --surface: #1d2027;
    --surface-2: #252932;
    --ink: #eceef2;
    --ink-2: #c3c7cf;
    --ink-3: #9aa0ab;
    --line: #353a45;
    --focus: #eceef2;
    --brain: #e0703a;
    --brain-soft: #3a2419;
    --computer: #4f8de8;
    --computer-soft: #1a2a44;
    --quantum: #c160b6;
    --quantum-soft: #35203a;
    --on: #f2b01e;
    --off: #4a4f5a;
    --off-ink: #eceef2;
    --good: #5cc27f;
    --moderate: #6fb6d8;
    --loose: #e2a63b;
    --weak: #f07a6e;
  }
}
:root[data-theme="dark"] {
  --bg: #15171c;
  --surface: #1d2027;
  --surface-2: #252932;
  --ink: #eceef2;
  --ink-2: #c3c7cf;
  --ink-3: #9aa0ab;
  --line: #353a45;
  --focus: #eceef2;
  --brain: #e0703a;
  --brain-soft: #3a2419;
  --computer: #4f8de8;
  --computer-soft: #1a2a44;
  --quantum: #c160b6;
  --quantum-soft: #35203a;
  --on: #f2b01e;
  --off: #4a4f5a;
  --off-ink: #eceef2;
  --good: #5cc27f;
  --moderate: #6fb6d8;
  --loose: #e2a63b;
  --weak: #f07a6e;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 1rem); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 var(--font);
}
img, svg { max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3, h4 { line-height: 1.25; margin: 1.6em 0 .5em; }
h1 { font-size: clamp(1.9rem, 6vw, 2.6rem); margin-top: .4em; letter-spacing: -.01em; }
h2 { font-size: 1.55rem; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.02rem; }
p, ul, ol { margin: 0 0 1em; }
li { margin: .25em 0; }
li > ul, li > ol { margin: .25em 0 .25em; }
small, .small { font-size: .875rem; }
.muted { color: var(--ink-2); }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.skip-link { position: absolute; left: .5rem; top: -3rem; z-index: 50; background: var(--surface); padding: .5rem .75rem; border-radius: 8px; }
.skip-link:focus { top: .5rem; }

/* ---------- layout ---------- */
.wrap { max-width: var(--measure); margin: 0 auto; padding: 0 1.1rem; }
section.page-section { padding: 1.5rem 0 1rem; border-top: 1px solid var(--line); }
section.page-section:first-of-type { border-top: 0; }
.eyebrow { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); margin: 0; }
.lede { font-size: 1.15rem; color: var(--ink-2); }

/* ---------- header, section nav, progress ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar { display: flex; align-items: center; gap: .5rem; height: var(--header-h); max-width: 60rem; margin: 0 auto; padding: 0 .75rem; }
.site-header .home { font-weight: 700; text-decoration: none; white-space: nowrap; font-size: .95rem; }
.section-nav { flex: 1; overflow-x: auto; scrollbar-width: none; mask-image: linear-gradient(90deg, transparent 0, #000 12px, #000 calc(100% - 12px), transparent 100%); }
.section-nav::-webkit-scrollbar { display: none; }
.section-nav ol { display: flex; gap: .25rem; list-style: none; margin: 0; padding: 0 .5rem; }
.section-nav li { margin: 0; }
.section-nav a {
  display: inline-flex; align-items: center; min-height: 36px; padding: 0 .65rem;
  border-radius: 999px; text-decoration: none; white-space: nowrap; font-size: .85rem; color: var(--ink-2);
}
.section-nav a[aria-current="true"] { background: var(--ink); color: var(--bg); }
.theme-toggle { flex: none; }
.progress { height: 3px; background: transparent; }
.progress span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--brain), var(--computer)); }

/* ---------- buttons & controls ---------- */
button, .btn {
  font: inherit; font-size: .95rem; color: var(--ink);
  min-height: var(--tap); min-width: var(--tap); padding: .4rem .9rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem; text-decoration: none;
}
button:hover, .btn:hover { border-color: var(--ink-3); }
button:disabled { opacity: .5; cursor: not-allowed; }
button.primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }
button.icon { padding: 0; width: var(--tap); }
button[aria-pressed="true"].toggle { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn-row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin: .75rem 0; }

.seg { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--surface); }
.seg button { border: 0; border-radius: 0; border-right: 1px solid var(--line); }
.seg button:last-child { border-right: 0; }
.seg button[aria-checked="true"], .seg button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }

input[type="range"] { width: 100%; min-height: var(--tap); accent-color: var(--ink); }
label { cursor: pointer; }

/* ---------- identity: brain / computer / quantum ---------- */
.is-brain { --hue: var(--brain); --hue-soft: var(--brain-soft); }
.is-computer { --hue: var(--computer); --hue-soft: var(--computer-soft); }
.is-quantum { --hue: var(--quantum); --hue-soft: var(--quantum-soft); }
.tag {
  display: inline-flex; align-items: center; gap: .35em; font-size: .78rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; color: var(--ink-2);
}
.tag::before { content: ""; width: .7em; height: .7em; border-radius: 3px; background: var(--hue, var(--ink-3)); }
.split { display: grid; gap: .9rem; grid-template-columns: 1fr; }
@media (min-width: 640px) { .split { grid-template-columns: 1fr 1fr; } }
.side {
  background: var(--surface); border: 1px solid var(--line); border-top: 4px solid var(--hue, var(--line));
  border-radius: var(--radius); padding: .9rem 1rem;
}
.side > :last-child { margin-bottom: 0; }
.side h3, .side h4 { margin-top: .25rem; }

/* ---------- footnotes ---------- */
a.fn {
  font-size: .72em; vertical-align: super; line-height: 0; text-decoration: none;
  padding: .1em .25em; margin-left: .05em; border-radius: 4px;
  background: var(--surface-2); color: var(--ink-2); font-weight: 600; white-space: nowrap;
}
a.fn:hover { background: var(--line); }
.fn-pop {
  position: absolute; z-index: 40; max-width: min(24rem, calc(100vw - 1.5rem));
  background: var(--surface); color: var(--ink); border: 1px solid var(--line); border-radius: 10px;
  box-shadow: 0 8px 30px rgb(0 0 0 / .18); padding: .75rem .9rem; font-size: .88rem; line-height: 1.45;
}
.fn-pop p { margin: 0 0 .5rem; overflow-wrap: anywhere; }
.fn-pop .fn-pop-actions { display: flex; gap: .5rem; justify-content: flex-end; }
.fn-pop button, .fn-pop a.btn { min-height: 36px; font-size: .85rem; padding: .2rem .6rem; }
.references ol { padding-left: 0; list-style: none; }
.references li { display: grid; grid-template-columns: 3rem 1fr; gap: .25rem; font-size: .9rem; overflow-wrap: anywhere; padding: .35rem 0; border-radius: 6px; }
.references li > b { color: var(--ink-2); }
.references li:target { background: var(--surface-2); }
.references .note { font-size: .9rem; color: var(--ink-2); }

/* ---------- callouts ---------- */
.callout {
  border: 1px solid var(--line); border-left: 4px solid var(--ink-3); border-radius: 10px;
  background: var(--surface); padding: .75rem 1rem; margin: 1rem 0; font-size: .95rem;
}
.callout > :last-child { margin-bottom: 0; }
.callout-title { display: block; font-weight: 700; font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-2); margin-bottom: .25rem; }
.callout.leaves-out { border-left-color: var(--loose); background: var(--surface-2); }
.callout.leaves-out .callout-title::before { content: "◐ "; }
.callout.status { border-left-color: var(--moderate); }
.callout.status .callout-title::before { content: "◷ "; }
.callout.myth { border-left-color: var(--weak); }
.callout.myth .callout-title::before { content: "✕ "; }
.callout.definition { border-left-color: var(--ink); }
.callout.unknown { border-left-color: var(--quantum); }
.callout.unknown .callout-title::before { content: "? "; }
.go-deeper {
  display: block; margin: 1rem 0; padding: .7rem 1rem; min-height: var(--tap);
  border: 1px dashed var(--computer); border-radius: 10px; text-decoration: none; background: var(--computer-soft);
}
.go-deeper::before { content: "↘ "; font-weight: 700; }
.go-deeper b { font-weight: 700; }
.go-deeper span { color: var(--ink-2); font-size: .9rem; }
.todo {
  display: inline-block; font-family: var(--mono); font-size: .8rem; font-weight: 700;
  background: #fff3b0; color: #5a4300; border: 1px dashed #b38600; border-radius: 4px; padding: 0 .35em;
}

/* ---------- analogy-strength badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: .3em; font-size: .78rem; font-weight: 700;
  border-radius: 999px; padding: .15em .6em; border: 1.5px solid currentColor; white-space: nowrap;
}
.badge::before { font-weight: 700; }
.badge.good { color: var(--good); }
.badge.good::before { content: "●●●"; letter-spacing: -.1em; font-size: .7em; }
.badge.moderate { color: var(--moderate); }
.badge.moderate::before { content: "●●○"; letter-spacing: -.1em; font-size: .7em; }
.badge.loose { color: var(--loose); }
.badge.loose::before { content: "●○○"; letter-spacing: -.1em; font-size: .7em; }
.badge.weak { color: var(--weak); }
.badge.weak::before { content: "○○○"; letter-spacing: -.1em; font-size: .7em; }

/* ---------- logic states (1 / 0) ---------- */
.bit {
  display: inline-flex; align-items: center; justify-content: center; min-width: 2em; padding: 0 .4em;
  font-family: var(--mono); font-weight: 700; border-radius: 6px; border: 1.5px solid var(--ink-3);
}
.bit.is-1 { background: var(--on); color: var(--on-ink); border-color: #9c6c00; }
.bit.is-0 { background: var(--off); color: var(--off-ink); }

/* ---------- tables ---------- */
.table-scroll { overflow-x: auto; margin: 1rem 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { text-align: left; vertical-align: top; padding: .55rem .7rem; border-bottom: 1px solid var(--line); }
tr:last-child > * { border-bottom: 0; }
thead th { background: var(--surface-2); font-size: .82rem; }
th.is-brain, th.is-computer { border-bottom: 3px solid var(--hue); }

/* ---------- interactive module frame ---------- */
.module {
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px;
  padding: 1rem; margin: 1.25rem 0; box-shadow: 0 1px 0 rgb(0 0 0 / .03);
}
@media (min-width: 640px) { .module { padding: 1.25rem 1.4rem; } }
.module-head { display: flex; align-items: baseline; gap: .5rem; flex-wrap: wrap; margin-bottom: .25rem; }
.module-head h3 { margin: 0; font-size: 1.12rem; }
.module-id { font-family: var(--mono); font-size: .75rem; color: var(--ink-3); border: 1px solid var(--line); border-radius: 6px; padding: 0 .35em; }
.module .goal { font-size: .9rem; color: var(--ink-2); margin: .1rem 0 .75rem; }
.module .goal::before { content: "Goal: "; font-weight: 700; }
.module svg { display: block; width: 100%; height: auto; }
.module svg text { fill: var(--ink); font-family: var(--font); }
.noscript { padding: .75rem; background: var(--surface-2); border-radius: 8px; font-size: .9rem; }


/* ---------- shared widgets (widgets.js) ---------- */
.ctl-label { display: block; font-size: .78rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-2); margin-bottom: .25rem; }
.g-label { font-size: 11px; }
.muted-text { fill: var(--ink-3) !important; }
/* gate controls + output lamp */
.gate-controls { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; justify-content: space-between; }
.inputs { display: flex; gap: .5rem; }
.input-btn { font-weight: 600; }
.input-btn[aria-pressed="true"] { border-color: #9c6c00; }
.gate-out { display: flex; align-items: center; gap: .9rem; flex-wrap: wrap; margin: .9rem 0 .25rem; }
.lamp { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.05rem; }
.lamp-dot { width: 1.6rem; height: 1.6rem; border-radius: 50%; background: var(--off); border: 2px solid var(--ink-3); }
.lamp.is-1 .lamp-dot { background: var(--on); border-color: #9c6c00; box-shadow: 0 0 0 6px color-mix(in srgb, var(--on) 30%, transparent); }
.cmos { max-width: 30rem; margin: .5rem auto 0; }
.cmos .rail { stroke: var(--ink-3); stroke-width: 3; }
.cmos .rail-1 { stroke: #b07a00; }
.cmos .rail-label, .cmos .stage-label, .cmos .node-name { font-size: 12px; font-weight: 700; }
.cmos .stage-label { fill: var(--ink-2) !important; }
.cmos .wire { stroke: var(--ink-3); stroke-width: 2; opacity: .55; }
.cmos .wire.live { stroke: var(--computer); opacity: 1; stroke-width: 3; }
.cmos .tr rect { stroke-width: 2; }
.cmos .tr.on rect { fill: var(--computer-soft); stroke: var(--computer); }
.cmos .tr.off rect { fill: var(--surface-2); stroke: var(--ink-3); stroke-dasharray: 4 3; }
.cmos .tr-in { font-size: 11px; font-weight: 700; font-family: var(--mono); }
.cmos .tr-state { font-size: 10px; }
.cmos .tr.off .tr-state { fill: var(--ink-3) !important; }
.cmos .node { stroke: var(--ink-3); stroke-width: 2; }
.cmos .node.is-1 { fill: var(--on); stroke: #9c6c00; }
.cmos .node.is-0 { fill: var(--off); }
.cmos .node-text { font-size: 13px; font-weight: 700; font-family: var(--mono); fill: #1b1d22 !important; }
.cmos .node.is-0 + .node-text { fill: var(--off-ink) !important; }
.cmos-legend { margin-top: .4rem; }
.truth { max-width: 16rem; }
.truth td, .truth th { text-align: center; padding: .35rem .5rem; }
.truth tr.current td { background: var(--computer-soft); }

/* ---------- self-check ---------- */
.match { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
.match-col { display: grid; gap: .4rem; align-content: start; }
.match-btn { justify-content: flex-start; text-align: left; font-size: .9rem; border-left: 4px solid var(--hue); }
.match-btn[aria-pressed="true"] { background: var(--hue-soft); border-color: var(--ink); border-left-color: var(--hue); font-weight: 700; }
.match-btn.matched { opacity: .6; border-style: dashed; border-left-style: solid; }
.match-fb { font-size: .92rem; min-height: 3em; }
.quiz { padding-left: 0; list-style: none; counter-reset: q; }
.quiz > li { counter-increment: q; margin: 0 0 1rem; }
.quiz fieldset { border: 1px solid var(--line); border-radius: 12px; padding: .6rem .8rem .8rem; margin: 0; }
.quiz legend { font-weight: 700; padding: 0 .3rem; }
.quiz legend::before { content: counter(q) ". "; color: var(--ink-3); }
.opt { display: flex; align-items: center; gap: .55rem; border-radius: 8px; padding: 0 .4rem; min-height: var(--tap); }
.opt input { width: 1.2rem; height: 1.2rem; accent-color: var(--ink); flex: none; margin: 0; }
.opt label { flex: 1; padding: .4rem 0; }
.opt.right { background: color-mix(in srgb, var(--good) 14%, transparent); }
.opt.right label::after { content: "  ✓"; color: var(--good); font-weight: 700; }
.opt.wrong { background: color-mix(in srgb, var(--weak) 14%, transparent); }
.opt.wrong label::after { content: "  ✕"; color: var(--weak); font-weight: 700; }
.quiz-fb { font-size: .9rem; margin-top: .4rem; }
.quiz-score { font-weight: 700; margin: 0; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: 2rem; padding: 1.5rem 0 3rem; font-size: .88rem; color: var(--ink-2); }

/* ---------- motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

@media print {
  .site-header, .theme-toggle, .btn-row { display: none !important; }
  .module { break-inside: avoid; }
}

/* ---------- at-a-glance visuals (replace long text; details stay one tap away) ---------- */
.tldr { font-size: 1.05rem; font-weight: 600; margin: .5rem 0 .75rem; padding-left: .75rem; border-left: 3px solid var(--hue, var(--ink)); }
details.more { margin: .5rem 0 1rem; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
details.more > summary { cursor: pointer; min-height: var(--tap); display: flex; align-items: center; padding: 0 1rem; font-size: .9rem; font-weight: 600; color: var(--ink-2); list-style: none; }
details.more > summary::-webkit-details-marker { display: none; }
details.more > summary::before { content: "▸"; margin-right: .5rem; transition: transform .2s; }
details.more[open] > summary::before { transform: rotate(90deg); }
details.more > .more-body { padding: 0 1rem .75rem; font-size: .95rem; }
details.more > .more-body > :last-child { margin-bottom: 0; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(8.5rem, 1fr)); gap: .5rem; margin: .75rem 0; }
.stat { background: var(--surface); border: 1px solid var(--line); border-top: 3px solid var(--hue, var(--ink-3)); border-radius: 10px; padding: .5rem .7rem; }
.stat b { display: block; font-size: 1.3rem; line-height: 1.2; }
.stat span { font-size: .82rem; color: var(--ink-2); }
.side .stats { grid-template-columns: repeat(auto-fit, minmax(7rem, 1fr)); }

.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin: .75rem 0; }
.tile { border: 1px solid var(--line); border-top: 3px solid var(--hue, var(--ink-3)); border-radius: 12px; background: var(--surface); }
.tile.wide, .tile[open] { grid-column: 1 / -1; }
.tile > summary { list-style: none; cursor: pointer; padding: .6rem .75rem; display: grid; gap: .15rem; min-height: var(--tap); }
.tile > summary::-webkit-details-marker { display: none; }
.tile-kicker { font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); font-weight: 700; }
.tile-big { font-size: 1.35rem; font-weight: 800; line-height: 1.15; }
.tile-head { font-size: .88rem; font-weight: 600; }
.tile-more { font-size: .75rem; color: var(--ink-3); }
.tile-more::before { content: "▸ "; }
.tile[open] .tile-more { display: none; }
.tile > .more-body { padding: 0 .75rem .7rem; font-size: .92rem; }
.tile > .more-body ul { padding-left: 1.1rem; margin: 0; }

.rating { list-style: none; padding: 0; margin: .75rem 0; display: grid; gap: .4rem; }
.rating li { display: grid; grid-template-columns: 8rem 1fr; gap: .6rem; align-items: start; padding: .5rem .65rem; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); margin: 0; }
.rating .badge { justify-self: start; margin-top: .15rem; }
.rating p { margin: 0; font-size: .92rem; }
.rating p b { display: block; }
@media (max-width: 420px) { .rating li { grid-template-columns: 1fr; gap: .2rem; } }

.strip { display: flex; flex-wrap: wrap; gap: .4rem; list-style: none; padding: 0; margin: .75rem 0; counter-reset: s; }
.strip > li { flex: 1 1 7.5rem; margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: .5rem .6rem; font-size: .85rem; counter-increment: s; color: var(--ink-2); }
.strip > li::before { content: counter(s); display: inline-grid; place-items: center; width: 1.4rem; height: 1.4rem; border-radius: 50%; background: var(--hue, var(--ink)); color: #fff; font-size: .72rem; font-weight: 700; margin-bottom: .2rem; }
.strip > li b { display: block; font-size: .95rem; color: var(--ink); }

.vtl { list-style: none; padding: 0; margin: .75rem 0 .75rem .5rem; border-left: 2px solid var(--line); }
.vtl li { position: relative; padding: 0 0 .75rem 1.1rem; margin: 0; font-size: .95rem; }
.vtl li::before { content: ""; position: absolute; left: -.5rem; top: .3rem; width: .85rem; height: .85rem; border-radius: 50%; background: var(--hue, var(--computer)); border: 2px solid var(--bg); }
.vtl .yr { display: block; font-family: var(--mono); font-weight: 700; font-size: .85rem; color: var(--ink-2); }

.fig { margin: .75rem 0; }
.fig svg { display: block; width: 100%; height: auto; max-width: 30rem; margin: 0 auto; }
.fig svg text { fill: var(--ink); font-family: var(--font); font-size: 11px; }
.fig svg .lbl-muted { fill: var(--ink-3); }
.fig svg .lbl-b { font-weight: 700; }
.fig figcaption { font-size: .85rem; color: var(--ink-2); text-align: center; margin-top: .3rem; }
.fig .st-brain { stroke: var(--brain); fill: none; }
.fig .fl-brain { fill: var(--brain); }
.fig .fl-brain-soft { fill: var(--brain-soft); stroke: var(--brain); }
.fig .st-comp { stroke: var(--computer); fill: none; }
.fig .fl-comp { fill: var(--computer); }
.fig .fl-comp-soft { fill: var(--computer-soft); stroke: var(--computer); }
.fig .st-muted { stroke: var(--ink-3); fill: none; }
.fig .fl-muted { fill: var(--ink-3); }
.fig .st-dash { stroke-dasharray: 5 3; }

.hbars { display: grid; gap: .5rem; margin: .5rem 0 .75rem; }
.hbar { display: grid; grid-template-columns: 1fr auto; gap: .1rem .5rem; font-size: .88rem; align-items: baseline; }
.hbar-track { grid-column: 1 / -1; height: .9rem; background: var(--surface-2); border-radius: 4px; overflow: hidden; }
.hbar-fill { display: block; height: 100%; background: var(--hue, var(--computer)); border-radius: 4px; min-width: 3px; }
.hbar.alt .hbar-fill { background: repeating-linear-gradient(135deg, var(--hue, var(--computer)) 0 4px, var(--computer-soft) 4px 7px); }
.hbar-val { font-family: var(--mono); font-weight: 700; }
.hbars-title { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-2); margin: .75rem 0 .25rem; }

.tcount { display: grid; gap: .4rem; margin: .75rem 0; }
.tc-row { display: grid; grid-template-columns: 7.5rem 1fr; align-items: center; gap: .5rem; font-size: .9rem; }
.tc-boxes { display: flex; flex-wrap: wrap; gap: 3px; align-items: center; }
.tc-boxes i { width: 14px; height: 14px; border-radius: 3px; background: var(--computer); }
.tc-boxes i.opt { background: transparent; border: 2px dashed var(--computer); }
.tc-boxes span { margin-left: .4rem; font-family: var(--mono); font-weight: 700; font-size: .85rem; }
blockquote.pull { margin: .75rem 0 1rem; padding: .6rem 1rem; border-left: 3px solid var(--ink-3); font-size: 1.05rem; font-style: italic; color: var(--ink); background: var(--surface); border-radius: 0 10px 10px 0; }
blockquote.pull cite { display: block; font-style: normal; font-size: .85rem; color: var(--ink-2); margin-top: .25rem; }
.tc-boxes .cap { font-family: var(--mono); font-weight: 700; color: var(--computer); margin: 0 .2rem; }
.side .tc-boxes { margin: .4rem 0; }
@media (max-width: 480px) {
  .tc-row { grid-template-columns: 1fr; gap: .15rem; }
  .tc-row > span:first-child { font-weight: 600; }
}