@import url("https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
  --paper: #e9eae5;
  --paper-bright: #f8f8f4;
  --ink: #161713;
  --muted: #5b5f56;
  --rule: #bfc2b8;
  --rule-dark: #8e9288;
  --accent: #ad2c22;
  --dark: #171916;
  --dark-ink: #f2f3ed;
  --mono: "IBM Plex Mono", "Courier New", monospace;
  --sans: "Archivo", "Helvetica Neue", sans-serif;
  --max: 72rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.55;
  letter-spacing: 0;
}
body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--rule) 45%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--rule) 45%, transparent) 1px, transparent 1px);
  background-size: 14px 14px;
  opacity: .55;
  pointer-events: none;
}
button, input, select, textarea { font: inherit; letter-spacing: 0; }
a { color: inherit; text-underline-offset: .2em; text-decoration-thickness: 1px; }
img, canvas { max-width: 100%; }
code, output, pre { font-family: var(--mono); }
button, .button-link {
  display: inline-flex;
  min-height: 2.85rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 0;
  padding: .65rem 1rem;
  color: var(--paper-bright);
  background: var(--ink);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
button:hover, .button-link:hover { color: var(--ink); background: transparent; }
button.quiet { color: var(--ink); background: transparent; }
button.quiet:hover { color: var(--paper-bright); background: var(--ink); }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
button[aria-pressed="true"] { color: var(--paper-bright); background: var(--accent); border-color: var(--accent); }

.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  padding: .5rem .75rem;
  color: var(--paper-bright);
  background: var(--ink);
  transform: translateY(-200%);
}
.skip-link:focus { transform: translateY(0); }
.wrap { width: min(100%, var(--max)); margin-inline: auto; padding-inline: var(--gutter); }
.band { padding-block: clamp(3.5rem, 8vw, 7rem); background: color-mix(in srgb, var(--paper) 94%, transparent); }
.ruled { border-block: 1px solid var(--rule); }
.dark-band { color: var(--dark-ink); background: var(--dark); }
.dark-band .section-number, .dark-band .kicker, .dark-band .exhibit-number { color: #8e9589; }
.conclusion-band { border-top: 1px solid var(--rule); background: var(--paper-bright); }

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 96%, transparent);
}
.site-nav {
  min-height: 4.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.site-mark { font-size: 1.05rem; font-weight: 700; text-decoration: none; }
.site-mark span { color: var(--accent); }
.site-links { display: flex; align-items: center; gap: clamp(.75rem, 2.4vw, 2rem); }
.site-links a {
  padding-block: .25rem;
  color: var(--muted);
  font-size: .82rem;
  font-weight: 600;
  text-decoration: none;
  text-transform: uppercase;
}
.site-links a:hover, .site-links a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px var(--accent); }

.hero { min-height: calc(100svh - 4.25rem); display: grid; align-items: center; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(min(18rem, 100%), .75fr); gap: clamp(3rem, 8vw, 8rem); align-items: center; }
.hero-copy h1, .exhibit-hero h1 {
  margin: 0;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: .9;
  font-weight: 700;
}
.hero-copy h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.5rem);
  line-height: .95;
  letter-spacing: -.015em;
}
.hero-copy h1 span { display: block; margin-left: .5em; color: var(--accent); }
.question { max-width: 39rem; margin: 2rem 0 1rem; font-size: clamp(1.05rem, 1.7vw, 1.3rem); line-height: 1.35; font-weight: 600; }
.lede { max-width: 42rem; color: var(--muted); font-size: 1rem; }
.hero-object { align-self: end; padding-bottom: 1.5rem; }
.hero-object canvas { display: block; width: min(100%, 360px); height: auto; background: var(--paper-bright); }
.kicker, .section-number, .exhibit-number, .status-tag {
  margin: 0 0 .8rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.status-tag { display: inline-block; margin-top: 1.25rem; border-left: 3px solid var(--accent); padding-left: .65rem; color: var(--ink); }
.objective { max-width: 47rem; margin: 1.5rem 0 0; color: var(--muted); font-size: .95rem; }
.objective span { display: block; margin-bottom: .25rem; color: var(--muted); font-family: var(--mono); font-size: .68rem; letter-spacing: .08em; }
.spec-line {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 1rem;
  border-top: 1px solid var(--rule);
  padding: .65rem 0;
  font-family: var(--mono);
  font-size: .72rem;
}
.spec-line span { color: var(--muted); }
.spec-line strong { overflow-wrap: anywhere; font-weight: 500; }
.spec-line.accent strong { color: var(--accent); }

h2 { margin: 0 0 1rem; font-size: clamp(1.45rem, 2.5vw, 2.05rem); line-height: 1.12; }
h3 { margin: 0 0 .4rem; font-size: 1rem; }
p { max-width: 47rem; }
.thesis-grid { display: grid; grid-template-columns: minmax(min(8rem, 100%), .35fr) minmax(0, 1fr); gap: clamp(2rem, 7vw, 7rem); }
.large-copy { margin-top: 0; font-size: clamp(1.1rem, 1.7vw, 1.35rem); line-height: 1.45; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 3rem; margin-bottom: 2rem; }
.section-heading > p { max-width: 26rem; color: var(--muted); }
.exhibit-index { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--rule); }
.exhibit-index li { border-bottom: 1px solid var(--rule); }
.exhibit-index a {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1.25rem 0;
  text-decoration: none;
}
.exhibit-index a:hover h3 { color: var(--accent); }
.exhibit-index .index-number, .exhibit-index .index-status { color: var(--muted); font-family: var(--mono); font-size: .72rem; }
.exhibit-index h3 { margin: 0; font-size: clamp(1rem, 1.6vw, 1.15rem); }
.exhibit-index p { margin: .25rem 0 0; color: var(--muted); font-size: .88rem; }
.question-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 3rem; border: 1px solid #454a43; }
.question-grid > div { min-height: 12rem; border-left: 1px solid #454a43; padding: 1.25rem; }
.question-grid > div:first-child { border-left: 0; }
.question-grid span { color: #8e9589; font-family: var(--mono); font-size: .72rem; }
.question-grid h3 { margin-top: 2.75rem; font-size: 1.15rem; }
.question-grid p { color: #abb0a7; font-size: .9rem; }
.split-callout { display: flex; align-items: end; justify-content: space-between; gap: 3rem; }
.arrow-link { font-family: var(--mono); font-size: .82rem; }
.arrow-link span { color: var(--accent); font-size: 1.3rem; }

.exhibit-hero { padding-top: clamp(3rem, 7vw, 6rem); }
.exhibit-title-grid { display: grid; grid-template-columns: minmax(min(7rem, 100%), .22fr) minmax(0, 1fr); gap: clamp(2rem, 7vw, 7rem); }
.exhibit-hero h1 { max-width: 62rem; font-size: clamp(2.3rem, 5vw, 4.2rem); }
.pair { display: flex; gap: clamp(1rem, 5vw, 4rem); flex-wrap: wrap; align-items: flex-start; }
.specimen { width: max-content; max-width: 100%; margin: 0; border: 1px solid var(--rule); padding: 1rem; background: var(--paper-bright); }
.specimen canvas { display: block; image-rendering: pixelated; }
.specimen figcaption { margin-top: .75rem; color: var(--muted); font-family: var(--mono); font-size: .72rem; text-align: center; }
.verdict { min-height: 1.5rem; margin-top: .25rem; font-family: var(--mono); font-size: .72rem; text-align: center; }
.verdict.carrying { color: var(--accent); font-weight: 500; }
.control-strip {
  display: grid;
  grid-template-columns: minmax(min(12rem, 100%), 1.2fr) minmax(min(12rem, 100%), .8fr) auto;
  gap: 1rem;
  align-items: end;
  border-block: 1px solid var(--rule);
  padding-block: 1.25rem;
}
.control-strip label, .field { display: grid; gap: .35rem; color: var(--muted); font-size: .78rem; }
input, select, textarea {
  min-height: 2.85rem;
  width: 100%;
  border: 1px solid var(--rule-dark);
  border-radius: 0;
  padding: .55rem .65rem;
  color: var(--ink);
  background: var(--paper-bright);
  font-family: var(--mono);
  font-size: .88rem;
}
input[type="range"] { padding: 0; accent-color: var(--accent); }
.lab-grid { display: grid; grid-template-columns: minmax(min(18rem, 100%), .72fr) minmax(min(20rem, 100%), 1.28fr); gap: clamp(2rem, 7vw, 6rem); align-items: start; margin-top: 2.5rem; }
.output-specimen .quiet { width: 100%; margin-top: 1rem; }
.readout-stack { border-top: 1px solid var(--rule); }
.readout { display: grid; grid-template-columns: minmax(min(10rem, 100%), .6fr) minmax(0, 1fr); gap: 1rem; border-bottom: 1px solid var(--rule); padding: 1.1rem 0; }
.readout > p { margin: 0; color: var(--muted); font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; }
.readout output { overflow-wrap: anywhere; font-size: .85rem; }
.readout output.flag { color: var(--accent); font-weight: 500; }
.action-row { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.25rem; }
.bytes { min-height: 7rem; border: 1px solid var(--rule); padding: 1rem; background: var(--paper-bright); font-family: var(--mono); font-size: .8rem; line-height: 2; overflow-wrap: anywhere; }
.byte { display: inline-block; min-width: 2.1rem; margin: 1px; padding: 0 .2rem; text-align: center; }
.byte.pad { color: var(--muted); }
.byte.anomaly { color: var(--paper-bright); background: var(--accent); }
.byte-legend { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: .8rem; color: var(--muted); font-family: var(--mono); font-size: .72rem; }
.swatch { display: inline-block; width: .75rem; height: .75rem; margin-right: .35rem; border: 1px solid var(--rule-dark); vertical-align: -.08rem; }
.swatch.data { background: var(--ink); }
.swatch.pad { background: var(--paper-bright); }
.swatch.anomaly { background: var(--accent); border-color: var(--accent); }
.swatch.br-tp { background: var(--ink); }
.swatch.br-fn { background: var(--rule-dark); }
.swatch.br-fp { background: var(--accent); border-color: var(--accent); }
.swatch.br-tn { background: #dfe1da; }
.base-rate-controls { align-items: end; }
.base-rate-stage { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 6vw, 4rem); align-items: start; margin-top: 2.5rem; }
.base-rate-figure canvas { width: 100%; height: auto; background: var(--paper-bright); }
.base-rate-legend { margin-bottom: 1.25rem; }
.finding-box.flag { border-left-width: 6px; }
.research-note { border-left: 3px solid var(--accent); padding-left: 1rem; color: var(--muted); font-size: .9rem; overflow-wrap: anywhere; }
.anatomy-controls { grid-template-columns: minmax(min(14rem, 100%), 1fr) 8rem 8rem auto; }
.anatomy-grid { display: grid; grid-template-columns: minmax(min(20rem, 100%), 1fr) minmax(min(18rem, 100%), .72fr); gap: clamp(2rem, 7vw, 6rem); margin-top: 2.5rem; }
.anatomy-specimen { width: 100%; }
.anatomy-specimen canvas { margin-inline: auto; }
.metadata-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--rule); border-top: 0; background: var(--paper-bright); }
.metadata-grid div { display: grid; gap: .25rem; border-left: 1px solid var(--rule); padding: .75rem; }
.metadata-grid div:first-child { border-left: 0; }
.metadata-grid span { color: var(--muted); font-family: var(--mono); font-size: .62rem; }
.metadata-grid strong { font-family: var(--mono); font-size: .8rem; font-weight: 500; }
.overlay-controls { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--rule); }
.overlay-controls button { min-height: 3.2rem; justify-content: flex-start; border: 0; border-bottom: 1px solid var(--rule); padding-inline: .75rem; color: var(--ink); background: transparent; font-family: var(--mono); font-size: .72rem; text-align: left; }
.overlay-controls button:nth-child(odd) { border-right: 1px solid var(--rule); }
.overlay-controls button:hover, .overlay-controls button[aria-pressed="true"] { color: var(--paper-bright); background: var(--accent); }
.layer-note { min-height: 12rem; padding-top: 2rem; }
.layer-note h3 { font-size: 1.25rem; }
.pipeline { display: grid; grid-template-columns: repeat(5, 1fr); margin: 3rem 0 0; padding: 0; border: 1px solid #454a43; list-style: none; }
.pipeline li { min-height: 13rem; border-left: 1px solid #454a43; padding: 1rem; }
.pipeline li:first-child { border-left: 0; }
.pipeline span { color: #8e9589; font-family: var(--mono); font-size: .68rem; }
.pipeline strong { display: block; margin-top: 3rem; }
.pipeline p { color: #abb0a7; font-size: .85rem; }
.segment-controls { grid-template-columns: minmax(min(16rem, 100%), 1fr) 8rem 10rem auto; }
.representation-stage { display: grid; grid-template-columns: minmax(min(18rem, 100%), .75fr) minmax(min(20rem, 100%), 1.25fr); gap: clamp(2rem, 7vw, 6rem); align-items: start; margin-top: 2.5rem; }
.representation-list { margin-top: 3rem; border-top: 1px solid var(--rule); }
.representation-row {
  display: grid;
  width: 100%;
  grid-template-columns: 3rem minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: start;
  justify-content: initial;
  border: 0;
  border-bottom: 1px solid var(--rule);
  padding: 1rem 0;
  color: var(--ink);
  background: transparent;
  text-align: left;
}
.representation-row:hover, .representation-row[aria-pressed="true"] { color: var(--ink); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.representation-row[aria-pressed="true"] { box-shadow: inset 3px 0 var(--accent); padding-left: 1rem; }
.representation-row strong, .representation-row small { display: block; }
.representation-row small { margin-top: .3rem; color: var(--muted); font-family: var(--mono); font-size: .68rem; overflow-wrap: anywhere; }
.representation-bits, .representation-cost { font-family: var(--mono); font-size: .72rem; }
.representation-bits { color: var(--accent); }
.representation-cost { color: var(--muted); white-space: nowrap; }
.ecc-controls { grid-template-columns: minmax(min(14rem, 100%), 1fr) 7rem 7rem 9rem auto; }
.slider-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 1rem; align-items: end; margin-top: 1.5rem; }
.slider-grid label { display: grid; grid-template-columns: 1fr auto; gap: .4rem; color: var(--muted); font-size: .78rem; }
.slider-grid input { grid-column: 1 / -1; }
.slider-grid output { color: var(--ink); font-family: var(--mono); }
.ecc-pair { display: grid; grid-template-columns: repeat(2, max-content); gap: clamp(1rem, 5vw, 4rem); margin-top: 2.5rem; }
.budget-panel { margin-top: 2rem; border-block: 1px solid var(--rule); padding-block: 1rem; }
.budget-heading { display: flex; justify-content: space-between; gap: 1rem; font-family: var(--mono); font-size: .72rem; }
.budget-heading span { color: var(--muted); }
.budget-track { height: .75rem; margin-top: .75rem; border: 1px solid var(--rule-dark); background: var(--paper-bright); }
.budget-track span { display: block; width: 0; height: 100%; background: var(--ink); transition: width .2s ease; }
.budget-track span.over { background: var(--accent); }
.block-budget { margin-top: .6rem; color: var(--muted); font-family: var(--mono); font-size: .7rem; overflow-wrap: anywhere; }
.ecc-readouts { margin-top: 2rem; }
.placement-switch { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 1rem; border: 1px solid var(--rule); background: var(--rule); }
.placement-switch button { border: 0; color: var(--ink); background: var(--paper-bright); font-family: var(--mono); font-size: .72rem; }
.placement-switch button:hover, .placement-switch button[aria-pressed="true"] { color: var(--paper-bright); background: var(--accent); }
.placement-note { max-width: none; margin: .75rem 0 0; color: var(--muted); font-size: .82rem; }
.lineage-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr)); margin: 3rem 0 0; padding: 0; border: 1px solid #454a43; list-style: none; }
.lineage-list li { min-height: 15rem; border-left: 1px solid #454a43; padding: 1rem; }
.lineage-list li:first-child { border-left: 0; }
.lineage-list span { color: #8e9589; font-family: var(--mono); font-size: .68rem; }
.lineage-list strong { display: block; margin-top: 2rem; }
.lineage-list p { color: #abb0a7; font-size: .82rem; }
.lineage-list a { font-family: var(--mono); font-size: .7rem; }
.multi-controls { grid-template-columns: minmax(min(16rem, 100%), 1fr) 9rem 10rem auto; }
.multi-stage { display: grid; grid-template-columns: minmax(min(20rem, 100%), .8fr) minmax(min(20rem, 100%), 1.2fr); gap: clamp(2rem, 7vw, 6rem); align-items: start; margin-top: 2.5rem; }
.reader-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; border: 1px solid var(--rule); background: var(--rule); }
.reader-controls button { justify-content: flex-start; border: 0; color: var(--ink); background: var(--paper-bright); font-family: var(--mono); font-size: .72rem; }
.reader-controls button:hover, .reader-controls button[aria-pressed="true"] { color: var(--paper-bright); background: var(--accent); }
.multi-readouts { margin-top: 1.5rem; }
.channel-map { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 3rem; border: 1px solid var(--rule); }
.channel-map div { min-height: 11rem; border-left: 1px solid var(--rule); padding: 1rem; }
.channel-map div:first-child { border-left: 0; }
.channel-map span { color: var(--muted); font-family: var(--mono); font-size: .67rem; }
.channel-map strong { display: block; margin-top: 2rem; }
.channel-map p { color: var(--muted); font-size: .85rem; }
.regen-controls { grid-template-columns: minmax(min(18rem, 100%), 1fr) auto; }
.scenario-switch { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 1.5rem; border: 1px solid var(--rule); background: var(--rule); }
.scenario-switch button { border: 0; color: var(--ink); background: var(--paper-bright); font-family: var(--mono); font-size: .72rem; }
.scenario-switch button:hover, .scenario-switch button[aria-pressed="true"] { color: var(--paper-bright); background: var(--accent); }
.compare-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1rem, 3vw, 2rem); margin-top: 2.5rem; }
.compare-grid .specimen { width: 100%; }
.compare-grid canvas { margin-inline: auto; }
.difference-specimen canvas { border: 1px solid var(--rule); }
.analysis-flow { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 2rem; border: 1px solid var(--rule); }
.analysis-flow div { min-height: 10rem; border-left: 1px solid var(--rule); padding: 1rem; }
.analysis-flow div:first-child { border-left: 0; }
.analysis-flow span { color: var(--muted); font-family: var(--mono); font-size: .68rem; }
.analysis-flow strong { display: block; margin-top: 1.5rem; }
.analysis-flow p { margin-bottom: 0; font-family: var(--mono); font-size: .75rem; overflow-wrap: anywhere; }
.analysis-flow .flag { color: var(--accent); }
.finding-box { max-width: none; margin: 1.5rem 0 0; border-left: 3px solid var(--accent); padding: 1rem; background: var(--paper-bright); font-size: 1.05rem; }
blockquote { max-width: 46rem; margin: 2rem 0; border-left: 3px solid var(--accent); padding-left: 1rem; font-size: 1.3rem; font-weight: 600; }
.fingerprint-pair { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1rem, 3vw, 2rem); margin-top: 2.5rem; }
.fingerprint-pair .specimen { width: 100%; }
.fingerprint-pair canvas { margin-inline: auto; }
.comparison-table { margin-top: 2rem; border-top: 1px solid var(--rule); }
.comparison-row { display: grid; grid-template-columns: minmax(min(8rem, 100%), .5fr) minmax(0, 1fr) minmax(0, 1fr); gap: 1rem; border-bottom: 1px solid var(--rule); padding: .8rem 0; }
.comparison-row strong { color: var(--muted); font-family: var(--mono); font-size: .68rem; }
.comparison-row code { overflow-wrap: anywhere; font-size: .74rem; }
.comparison-head strong { color: var(--ink); }
.profile-table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--rule); background: var(--paper-bright); }
.profile-table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: .72rem; }
.profile-table th, .profile-table td { border-bottom: 1px solid var(--rule); border-left: 1px solid var(--rule); padding: .8rem; text-align: left; }
.profile-table th:first-child, .profile-table td:first-child { border-left: 0; }
.profile-table tbody tr:last-child th, .profile-table tbody tr:last-child td { border-bottom: 0; }
.profile-table thead th { color: var(--muted); font-weight: 500; }
.guess-stage { display: grid; grid-template-columns: minmax(min(20rem, 100%), .72fr) minmax(min(20rem, 100%), 1.28fr); gap: clamp(2rem, 7vw, 6rem); align-items: start; }
.guess-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; border: 1px solid var(--rule); background: var(--rule); }
.guess-buttons button { justify-content: flex-start; border: 0; color: var(--ink); background: var(--paper-bright); font-family: var(--mono); font-size: .72rem; }
.guess-buttons button:hover { color: var(--paper-bright); background: var(--accent); }
.guess-buttons button:disabled { color: var(--muted); background: var(--paper); cursor: default; }
.guess-results { margin-top: 1.5rem; }
#nextGuess { margin-top: 1rem; }
.metric-banner { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--rule); background: var(--paper-bright); }
.metric-banner div { display: grid; min-height: 8rem; align-content: space-between; border-left: 1px solid var(--rule); padding: 1rem; }
.metric-banner div:first-child { border-left: 0; }
.metric-banner span { color: var(--muted); font-family: var(--mono); font-size: .65rem; }
.metric-banner strong { font-size: 2rem; }
.encoder-spread { margin: 0 0 3rem; padding: 0; list-style: none; border-top: 1px solid var(--rule); }
.encoder-spread li { display: grid; grid-template-columns: minmax(min(6.5rem, 30%), .16fr) minmax(0, 1fr) auto; gap: 1rem; align-items: center; border-bottom: 1px solid var(--rule); padding: .7rem 0; }
.encoder-name { overflow-wrap: anywhere; font-family: var(--mono); font-size: .76rem; }
.encoder-track { position: relative; height: 1.35rem; border: 1px solid var(--rule); background: var(--paper-bright); }
.encoder-track i { display: block; height: 100%; background: var(--ink); }
.encoder-track b { position: absolute; top: -3px; bottom: -3px; width: 2px; background: var(--accent); }
.encoder-value { font-family: var(--mono); font-size: .78rem; text-align: right; }
.detector-rack { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(17rem, 100%), 1fr)); gap: 1px; border: 1px solid var(--rule); background: var(--rule); }
.detector { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: .75rem; align-items: start; padding: 1rem; background: var(--paper-bright); cursor: pointer; }
.detector input { min-height: auto; width: auto; margin-top: .2rem; accent-color: var(--accent); }
.detector strong { display: block; font-size: .95rem; }
.detector em { display: block; margin-top: .1rem; color: var(--muted); font-family: var(--mono); font-size: .66rem; font-style: normal; letter-spacing: .06em; text-transform: uppercase; }
.detector-weakness { display: block; margin-top: .45rem; color: var(--muted); font-size: .82rem; }
.detector:has(input:checked) { background: var(--paper); }
.adversary-rate { display: grid; gap: .35rem; max-width: 26rem; margin: 2rem 0; color: var(--muted); font-size: .78rem; }
.coverage-list { margin: 2.5rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--rule); }
.coverage-list li { display: grid; grid-template-columns: 6rem minmax(0, 1fr) minmax(0, 1.2fr); gap: 1rem; align-items: baseline; border-bottom: 1px solid var(--rule); padding: .9rem 0; }
.coverage-state { color: var(--muted); font-family: var(--mono); font-size: .66rem; letter-spacing: .06em; }
.coverage-list li.open .coverage-state { color: var(--accent); font-weight: 500; }
.coverage-list li.chosen { border-left: 3px solid var(--accent); padding-left: .75rem; }
.coverage-list em { color: var(--muted); font-family: var(--mono); font-size: .66rem; font-style: normal; letter-spacing: .06em; text-transform: uppercase; }
.coverage-note { color: var(--muted); font-size: .85rem; }
.results-heading { margin-top: 4rem; }
.confusion-table td { text-align: center; }
.confusion-table .diagonal { color: var(--paper-bright); background: var(--ink); font-weight: 600; }
.limitation-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 2rem; border: 1px solid var(--rule); background: var(--rule); }
.limitation-list p { max-width: none; margin: 0; padding: 1rem; background: var(--paper-bright); font-size: .85rem; }
.texture-controls, .sharing-controls, .nested-controls { grid-template-columns: minmax(min(14rem, 100%), 1fr) minmax(min(10rem, 100%), .6fr) auto; }
.texture-sliders { grid-template-columns: repeat(3, 1fr); }
.texture-stage, .nested-stage { display: grid; grid-template-columns: minmax(min(20rem, 100%), 1fr) minmax(min(19rem, 100%), .8fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; margin-top: 2rem; }
.texture-frame, .nested-frame { display: grid; min-height: 36rem; place-items: center; overflow: hidden; border: 1px solid var(--rule); background: var(--paper-bright); }
.texture-frame canvas, .nested-frame canvas { image-rendering: pixelated; }
.alignment-control { display: grid; grid-template-columns: 1fr auto; gap: .5rem; margin-top: 1.5rem; color: var(--muted); font-size: .78rem; }
.alignment-control input { grid-column: 1 / -1; }
.alignment-control output { color: var(--ink); font-family: var(--mono); }
.share-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 2rem; }
.share-grid .specimen { width: 100%; }
.share-grid canvas { margin-inline: auto; image-rendering: pixelated; }
.combined-share { grid-column: 1 / -1; }
.share-readouts, .nested-readouts { margin-top: 2rem; }
.vss-controls { grid-template-columns: minmax(min(13rem, 100%), 1fr) minmax(min(13rem, 100%), 1fr) 9rem auto; }
.vss-qr-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1rem, 5vw, 4rem); margin-top: 2.5rem; }
.vss-qr-panel .specimen { width: 100%; }
.vss-qr-panel canvas { margin-inline: auto; }
.compact-output { display: block; min-height: 3rem; margin-top: .75rem; border-top: 1px solid var(--rule); padding-top: .65rem; font-family: var(--mono); font-size: .72rem; }
.share-extraction-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 1rem; align-items: center; margin-top: 3rem; }
.share-extraction-grid figure, .recovered-share { margin: 0; border: 1px solid var(--rule); padding: 1rem; background: var(--paper-bright); }
.share-extraction-grid canvas, .recovered-share canvas { display: block; width: 100%; height: auto; image-rendering: pixelated; }
.share-extraction-grid figcaption, .recovered-share figcaption { margin-top: .6rem; color: var(--muted); font-family: var(--mono); font-size: .68rem; text-align: center; }
.xor-sign { color: var(--accent); font-family: var(--mono); font-size: .72rem; }
#combineShares { display: flex; margin: 1rem auto; }
.recovered-share { max-width: 52rem; margin-inline: auto; }
.nested-sliders { grid-template-columns: 1fr 1fr; }
.nested-readers { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.nested-readers .specimen { width: 100%; }
.nested-readers canvas { margin-inline: auto; }
.dual-controls { grid-template-columns: minmax(min(13rem, 100%), 1fr) minmax(min(13rem, 100%), 1fr) 13rem auto; }
.dual-stage { display: grid; grid-template-columns: minmax(min(22rem, 100%), 1.2fr) minmax(min(18rem, 100%), .8fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; margin-top: 2rem; }
.dual-composite { width: 100%; overflow: hidden; }
.dual-composite canvas { display: block; width: 100%; height: auto; image-rendering: pixelated; }
.dual-sampled { width: 100%; }
.dual-sampled canvas { margin-inline: auto; }
.module-key { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 2rem; border: 1px solid var(--rule); background: var(--rule); }
.module-key > div { display: flex; align-items: center; gap: .75rem; padding: .75rem; background: var(--paper-bright); }
.module-key code { font-size: .68rem; }
.two-state { position: relative; display: inline-block; flex: 0 0 auto; width: 2rem; height: 2rem; border: 1px solid var(--rule-dark); background: var(--outer); }
.two-state::after { position: absolute; width: .65rem; height: .65rem; top: 50%; left: 50%; content: ""; background: var(--center); transform: translate(-50%, -50%); }
.state-00 { --outer: #f8f8f4; --center: #f8f8f4; }
.state-01 { --outer: #161713; --center: #f8f8f4; }
.state-10 { --outer: #f8f8f4; --center: #161713; }
.state-11 { --outer: #161713; --center: #161713; }
.distribution-controls { grid-template-columns: minmax(min(16rem, 100%), 1fr) minmax(min(12rem, 100%), .8fr) auto; }
.histogram-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 2rem; border: 1px solid var(--rule); background: var(--rule); }
.histogram-panel { padding: 1rem; background: var(--paper-bright); }
.histogram-panel h3 { min-height: 3rem; }
.histogram-panel canvas { display: block; width: 100%; height: auto; border: 1px solid var(--rule); }
.stat-line { color: var(--muted); font-family: var(--mono); font-size: .7rem; }
.distribution-readouts { margin-top: 2rem; }
.challenge-stage { display: grid; grid-template-columns: minmax(min(21rem, 100%), .78fr) minmax(min(22rem, 100%), 1.22fr); gap: clamp(2rem, 7vw, 6rem); align-items: start; }
.challenge-specimen { position: sticky; top: 1rem; }
.tool-rack { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; border: 1px solid var(--rule); background: var(--rule); }
.tool-rack button { justify-content: flex-start; border: 0; color: var(--ink); background: var(--paper-bright); font-family: var(--mono); font-size: .7rem; text-align: left; }
.tool-rack button:hover, .tool-rack button[aria-pressed="true"] { color: var(--paper-bright); background: var(--accent); }
.instrument-output { min-height: 14rem; margin-top: 1.5rem; border-block: 1px solid var(--rule); padding-block: 1.25rem; }
.instrument-output h3 { font-size: 1.3rem; }
.instrument-output pre { max-height: 11rem; margin: 1rem 0 0; color: var(--muted); font-size: .73rem; line-height: 1.6; white-space: pre-wrap; overflow: auto; }
.analyst-verdict { display: grid; gap: .7rem; margin: 1.5rem 0 0; border: 1px solid var(--rule); padding: 1rem; }
.analyst-verdict legend { padding-inline: .4rem; font-family: var(--mono); font-size: .7rem; }
.analyst-verdict label { display: flex; gap: .65rem; align-items: center; }
.analyst-verdict input { min-height: auto; width: auto; accent-color: var(--accent); }
.predict { display: grid; gap: .6rem; justify-items: start; margin: 1.75rem 0; border: 1px solid var(--rule); border-left: 3px solid var(--rule-dark); padding: 1.1rem 1.2rem; background: var(--paper-bright); }
.predict[data-outcome] { border-left-color: var(--accent); }
.predict legend { padding-inline: .4rem; color: var(--muted); font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; }
.predict-question { max-width: 47rem; margin: 0; font-weight: 600; }
.predict label { display: flex; min-height: 1.5rem; gap: .65rem; align-items: baseline; cursor: pointer; }
.predict input { min-height: auto; width: auto; accent-color: var(--accent); }
.predict input:disabled + * , .predict input:disabled { cursor: default; }
.predict button { margin-top: .2rem; }
.predict-outcome { margin: 0; color: var(--accent); font-family: var(--mono); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.predict-outcome:empty { display: none; }
.predict-why { max-width: 47rem; margin: 0; color: var(--muted); font-size: .9rem; }
.predict-why[hidden] { display: none; }
.case-reveal { margin-top: 4rem; border-top: 3px solid var(--accent); padding-top: 2rem; }
.case-score { margin: 0 0 .75rem; border-left: 3px solid var(--rule); padding-left: .85rem; font-size: .95rem; }
.case-score.correct { border-left-color: var(--accent); }
.case-score.wrong { border-left-color: var(--accent); font-weight: 500; }
.case-score.partial { border-left-color: var(--muted); }
.case-reveal[hidden] { display: none; }
.resolution-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; border: 1px solid var(--rule); background: var(--rule); }
.resolution-grid div { min-height: 10rem; padding: 1rem; background: var(--paper-bright); }
.resolution-grid span { color: var(--muted); font-family: var(--mono); font-size: .67rem; }
.resolution-grid p { font-size: .9rem; }
.research-intro { display: grid; grid-template-columns: minmax(min(15rem, 100%), .8fr) minmax(min(22rem, 100%), 1.2fr); gap: clamp(2rem, 7vw, 6rem); }
.grade-list { margin: 0; border-top: 1px solid var(--rule); }
.grade-list div { display: grid; grid-template-columns: 5rem 1fr; border-bottom: 1px solid var(--rule); padding: .75rem 0; }
.grade-list dt { color: var(--accent); font-family: var(--mono); font-size: .72rem; font-weight: 500; }
.grade-list dd { margin: 0; color: var(--muted); font-size: .86rem; }
.glossary-group + .glossary-group { margin-top: 1rem; }
.glossary-list { margin: 0; border-top: 1px solid var(--rule); }
.glossary-list > div { display: grid; grid-template-columns: minmax(min(8rem, 100%), .28fr) minmax(0, 1fr); gap: .5rem 2rem; border-bottom: 1px solid var(--rule); padding: 1.15rem 0; }
.glossary-list dt { font-weight: 600; }
.glossary-list dd { margin: 0; max-width: 47rem; color: var(--muted); font-size: .92rem; }
.glossary-list dd code { color: var(--ink); font-size: .88em; }
.research-list { margin-top: 2rem; border-top: 1px solid var(--rule); }
.research-entry { scroll-margin-top: 1rem; border-bottom: 1px solid var(--rule); padding-block: 2rem; }
.research-entry > header { display: grid; grid-template-columns: 3rem minmax(0, 1fr) auto; gap: 1rem; align-items: baseline; }
.research-entry > header span, .research-entry > header b { color: var(--muted); font-family: var(--mono); font-size: .68rem; }
.research-entry > header h2 { margin: 0; font-size: clamp(1.6rem, 3vw, 2.7rem); }
.research-body { margin: 1.5rem 0 0 4rem; overflow-wrap: anywhere; }
.research-body > p { max-width: 58rem; }
.grade { display: inline-block; margin-left: .35rem; border: 1px solid currentColor; padding: .06rem .3rem; font-family: var(--mono); font-size: .62rem; font-style: normal; }
.grade.full, .grade.data { color: var(--accent); }
.grade.meta, .grade.bib, .grade.second { color: var(--muted); }
.research-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin: 1.25rem 0 0; border: 1px solid var(--rule); }
.research-facts div { border-left: 1px solid var(--rule); padding: .9rem; }
.research-facts div:first-child { border-left: 0; }
.research-facts dt { margin-bottom: .55rem; font-family: var(--mono); font-size: .68rem; font-weight: 500; text-transform: uppercase; }
.research-facts dd { margin: 0; color: var(--muted); font-size: .82rem; }

.site-footer { border-top: 1px solid var(--rule); background: var(--paper-bright); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: end; padding-block: 2.5rem; }
.footer-grid p { margin: 0; color: var(--muted); font-size: .82rem; }
.footer-grid a { font-family: var(--mono); font-size: .75rem; }

.reveal { animation: reveal .55s ease both; }
@keyframes reveal { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

.exhibit-nav-band { border-top: 1px solid var(--rule); padding-block: 2.75rem; }
.exhibit-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem 3rem; }
.exhibit-step { display: grid; align-content: start; gap: .35rem; text-decoration: none; color: inherit; }
.exhibit-step.next { text-align: right; }
.exhibit-step span { color: var(--muted); font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; }
.exhibit-step strong { font-size: 1.05rem; font-weight: 600; line-height: 1.25; }
.exhibit-step:hover strong, .exhibit-step:focus-visible strong { color: var(--accent); }

@media (max-width: 760px) {
  .coverage-list li { grid-template-columns: 1fr; gap: .3rem; }
  .site-links { flex-wrap: wrap; }
  .glossary-list > div { grid-template-columns: 1fr; gap: .3rem; }
  .base-rate-stage { grid-template-columns: 1fr; }
  .exhibit-nav { grid-template-columns: 1fr; }
  .exhibit-step.next { text-align: left; }
  .site-nav { align-items: flex-start; flex-direction: column; gap: .5rem; padding-block: .8rem; }
  .site-links { width: 100%; justify-content: space-between; gap: .4rem; padding-bottom: .4rem; }
  .site-links a { font-size: .68rem; white-space: nowrap; }
  .hero { min-height: auto; }
  .hero-grid, .thesis-grid, .exhibit-title-grid, .lab-grid, .anatomy-grid, .representation-stage, .multi-stage { grid-template-columns: 1fr; }
  .hero-object { width: min(100%, 26rem); }
  .section-heading, .split-callout { align-items: flex-start; flex-direction: column; gap: 1rem; }
  .question-grid { grid-template-columns: 1fr 1fr; }
  .question-grid > div:nth-child(3) { border-left: 0; border-top: 1px solid #454a43; }
  .question-grid > div:nth-child(4) { border-top: 1px solid #454a43; }
  .control-strip { grid-template-columns: 1fr; }
  .anatomy-controls { grid-template-columns: 1fr 1fr; }
  .segment-controls { grid-template-columns: 1fr 1fr; }
  .segment-controls label:first-child { grid-column: 1 / -1; }
  .ecc-controls { grid-template-columns: 1fr 1fr; }
  .ecc-controls label:first-child { grid-column: 1 / -1; }
  .lineage-list { grid-template-columns: 1fr 1fr; }
  .lineage-list li:nth-child(3) { border-top: 1px solid #454a43; border-left: 0; }
  .lineage-list li:nth-child(4) { border-top: 1px solid #454a43; }
  .multi-controls { grid-template-columns: 1fr 1fr; }
  .multi-controls label:first-child { grid-column: 1 / -1; }
  .slider-grid { grid-template-columns: 1fr; }
  .ecc-pair { grid-template-columns: 1fr 1fr; }
  .anatomy-controls label:first-child { grid-column: 1 / -1; }
  .pipeline { grid-template-columns: 1fr; }
  .pipeline li { min-height: 0; border-top: 1px solid #454a43; border-left: 0; }
  .pipeline li:first-child { border-top: 0; }
  .pipeline strong { margin-top: 1rem; }
  .channel-map { grid-template-columns: 1fr; }
  .channel-map div { min-height: 0; border-top: 1px solid var(--rule); border-left: 0; }
  .channel-map div:first-child { border-top: 0; }
  .compare-grid { grid-template-columns: 1fr; }
  .fingerprint-pair, .guess-stage { grid-template-columns: 1fr; }
  .metric-banner { grid-template-columns: 1fr 1fr; }
  .metric-banner div:nth-child(3) { border-top: 1px solid var(--rule); border-left: 0; }
  .metric-banner div:nth-child(4) { border-top: 1px solid var(--rule); }
  .texture-stage, .nested-stage { grid-template-columns: 1fr; }
  .dual-stage { grid-template-columns: 1fr; }
  .texture-frame, .nested-frame { min-height: 26rem; }
  .texture-controls, .sharing-controls, .nested-controls { grid-template-columns: 1fr 1fr; }
  .dual-controls { grid-template-columns: 1fr 1fr; }
  .dual-controls label:nth-child(3) { grid-column: 1 / -1; }
  .texture-controls label:first-child, .sharing-controls label:first-child, .nested-controls label:first-child { grid-column: 1 / -1; }
  .vss-controls { grid-template-columns: 1fr 1fr; }
  .vss-controls label:nth-child(3) { grid-column: 1 / -1; }
  .distribution-controls { grid-template-columns: 1fr 1fr; }
  .histogram-grid { grid-template-columns: 1fr; }
  .challenge-stage { grid-template-columns: 1fr; }
  .challenge-specimen { position: static; }
  .research-intro { grid-template-columns: 1fr; }
  .research-facts { grid-template-columns: 1fr; }
  .research-facts div { border-top: 1px solid var(--rule); border-left: 0; }
  .research-facts div:first-child { border-top: 0; }
  .analysis-flow { grid-template-columns: 1fr 1fr; }
  .analysis-flow div:nth-child(3) { border-top: 1px solid var(--rule); border-left: 0; }
  .analysis-flow div:nth-child(4) { border-top: 1px solid var(--rule); }
  .readout { grid-template-columns: 1fr; gap: .4rem; }
  .exhibit-index a { grid-template-columns: 2.5rem minmax(0, 1fr); }
  .exhibit-index .index-status { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 440px) {
  .hero-copy h1, .exhibit-hero h1 { font-size: 2.3rem; }
  .question-grid { grid-template-columns: 1fr; }
  .question-grid > div { min-height: 9rem; border-top: 1px solid #454a43; border-left: 0; }
  .question-grid > div:first-child { border-top: 0; }
  .question-grid h3 { margin-top: 1.5rem; }
  .specimen { width: 100%; }
  .specimen canvas { width: 100% !important; height: auto !important; }
  .anatomy-controls { grid-template-columns: 1fr; }
  .anatomy-controls label:first-child { grid-column: auto; }
  .segment-controls { grid-template-columns: 1fr; }
  .segment-controls label:first-child { grid-column: auto; }
  .ecc-controls { grid-template-columns: 1fr; }
  .ecc-controls label:first-child { grid-column: auto; }
  .placement-switch, .lineage-list { grid-template-columns: 1fr; }
  .lineage-list li { min-height: 0; border-top: 1px solid #454a43; border-left: 0; }
  .lineage-list li:first-child { border-top: 0; }
  .multi-controls { grid-template-columns: 1fr; }
  .multi-controls label:first-child { grid-column: auto; }
  .scenario-switch { grid-template-columns: 1fr; }
  .analysis-flow { grid-template-columns: 1fr; }
  .analysis-flow div { min-height: 0; border-top: 1px solid var(--rule); border-left: 0; }
  .analysis-flow div:first-child { border-top: 0; }
  .comparison-row { grid-template-columns: 1fr; gap: .25rem; }
  .comparison-head { display: none; }
  .guess-buttons, .metric-banner, .limitation-list { grid-template-columns: 1fr; }
  .metric-banner div { min-height: 6rem; border-top: 1px solid var(--rule); border-left: 0; }
  .metric-banner div:first-child { border-top: 0; }
  .texture-controls, .sharing-controls, .nested-controls, .texture-sliders, .nested-sliders, .share-grid, .nested-readers { grid-template-columns: 1fr; }
  .texture-controls label:first-child, .sharing-controls label:first-child, .nested-controls label:first-child { grid-column: auto; }
  .combined-share { grid-column: auto; }
  .vss-controls, .vss-qr-grid { grid-template-columns: 1fr; }
  .vss-controls label:nth-child(3) { grid-column: auto; }
  .share-extraction-grid { grid-template-columns: 1fr; }
  .xor-sign { text-align: center; }
  .dual-controls, .module-key { grid-template-columns: 1fr; }
  .dual-controls label:nth-child(3) { grid-column: auto; }
  .texture-frame, .nested-frame { min-height: 20rem; }
  .distribution-controls { grid-template-columns: 1fr; }
  .tool-rack, .resolution-grid { grid-template-columns: 1fr; }
  .research-entry > header { grid-template-columns: 2rem minmax(0, 1fr); }
  .research-entry > header b { grid-column: 2; }
  .research-body { margin-left: 0; }
  .ecc-pair { grid-template-columns: 1fr; }
  .representation-row { grid-template-columns: 2.25rem minmax(0, 1fr); }
  .representation-cost { grid-column: 2; }
  .metadata-grid { grid-template-columns: 1fr 1fr; }
  .metadata-grid div:nth-child(3) { border-top: 1px solid var(--rule); border-left: 0; }
  .metadata-grid div:nth-child(4) { border-top: 1px solid var(--rule); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}