:root {
  --ink-1000: #101310;
  --ink-975: #141814;
  --ink-950: #171b18;
  --ink-925: #1a201c;
  --ink-900: #1e2520;
  --ink-850: #242c26;
  --ink-800: #2b352e;
  --mineral-100: #f1ebdc;
  --mineral-200: #ddd5c5;
  --mineral-300: #bcb5a7;
  --mineral-400: #938f86;
  --copper-200: #f0c27d;
  --copper-300: #dda75e;
  --copper-400: #bd8140;
  --verdigris-200: #a8cdbd;
  --verdigris-300: #82b39e;
  --verdigris-400: #63937f;
  --rust-300: #d88c69;
  --rust-400: #b86649;
  --line-soft: rgba(241, 235, 220, 0.09);
  --line-medium: rgba(241, 235, 220, 0.17);
  --line-strong: rgba(241, 235, 220, 0.28);
  --copper-wash: rgba(221, 167, 94, 0.1);
  --verdigris-wash: rgba(130, 179, 158, 0.1);
  --rust-wash: rgba(216, 140, 105, 0.1);
  --shadow-deck: 0 1.5rem 4rem rgba(5, 8, 6, 0.34);
  --font-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, serif;
  --font-ui: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Code", "Liberation Mono", Menlo, monospace;
  --page: min(92rem, calc(100vw - 3rem));
}

* { box-sizing: border-box; }

html {
  background: var(--ink-1000);
  color: var(--mineral-100);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 20rem;
  background:
    radial-gradient(circle at 12% 0%, rgba(130, 179, 158, 0.09), transparent 28rem),
    radial-gradient(circle at 88% 10%, rgba(221, 167, 94, 0.08), transparent 30rem),
    linear-gradient(180deg, var(--ink-950), var(--ink-1000));
  color: var(--mineral-100);
  font: 400 1rem/1.65 var(--font-ui);
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(241, 235, 220, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(241, 235, 220, 0.018) 1px, transparent 1px);
  background-size: 4rem 4rem;
  content: "";
  pointer-events: none;
}

button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--copper-200);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  border-radius: 0.35rem;
  background: var(--mineral-100);
  color: var(--ink-1000);
  font-weight: 700;
  transform: translateY(-200%);
  transition: transform 160ms ease;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  min-height: 5rem;
  padding: 0.75rem max(1.5rem, calc((100vw - 92rem) / 2));
  border-bottom: 1px solid var(--line-soft);
  background: rgba(20, 24, 20, 0.9);
  box-shadow: 0 0.5rem 2rem rgba(5, 8, 6, 0.15);
  backdrop-filter: blur(18px);
}

.brand-lockup,
.service-readout {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-lockup strong,
.service-readout strong { display: block; font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; }
.brand-lockup small,
.service-readout small { display: block; color: var(--mineral-400); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; }

.brand-mark {
  display: grid;
  width: 2.55rem;
  height: 2.55rem;
  place-items: center;
  border: 1px solid var(--copper-400);
  color: var(--copper-200);
  font: 700 0.74rem/1 var(--font-mono);
  letter-spacing: 0.04em;
  transform: rotate(-2deg);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: clamp(1rem, 3vw, 2.5rem);
}
.site-nav a {
  color: var(--mineral-300);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-nav a:hover { color: var(--copper-200); }

.signal {
  width: 0.56rem;
  height: 0.56rem;
  border-radius: 50%;
  background: var(--mineral-400);
  box-shadow: 0 0 0 0.25rem rgba(147, 143, 134, 0.1);
}
.signal[data-state="verified"] { background: var(--verdigris-200); box-shadow: 0 0 0 0.25rem var(--verdigris-wash), 0 0 1rem rgba(168, 205, 189, 0.3); }

main { overflow: hidden; }
.hero,
.research-section,
.contract-section,
.replay-section,
.safety-section,
.results-section,
.analysis-section,
.run-section,
.curriculum-section {
  width: var(--page);
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(20rem, 0.7fr);
  gap: clamp(3rem, 7vw, 8rem);
  align-items: center;
  min-height: calc(90vh - 5rem);
  padding-block: clamp(5rem, 10vw, 9rem);
}
.hero-copy { max-width: 53rem; }
.eyebrow,
.kicker {
  margin: 0 0 0.8rem;
  color: var(--copper-200);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}
.hero h1,
.section-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.035em;
}
.hero h1 {
  max-width: 14ch;
  font-size: clamp(3.4rem, 7.5vw, 7.7rem);
  line-height: 0.92;
}
.hero-lede {
  max-width: 48rem;
  margin: 2rem 0 0;
  color: var(--mineral-200);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  line-height: 1.55;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
.primary-link,
.secondary-link,
.file-button {
  display: inline-flex;
  min-height: 2.9rem;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border: 1px solid var(--line-medium);
  border-radius: 0.28rem;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color 150ms ease, background 150ms ease, color 150ms ease;
}
.primary-link { border-color: var(--copper-300); background: var(--copper-300); color: var(--ink-1000); }
.primary-link:hover { background: var(--copper-200); }
.secondary-link:hover,
.file-button:hover { border-color: var(--copper-300); color: var(--copper-200); }
.boundary-note {
  max-width: 43rem;
  margin: 1.5rem 0 0;
  color: var(--mineral-400);
  font-size: 0.82rem;
}
.boundary-note strong { color: var(--verdigris-200); }

.hero-proof {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border: 1px solid var(--line-medium);
  background: linear-gradient(145deg, rgba(43, 53, 46, 0.75), rgba(23, 27, 24, 0.8));
  box-shadow: var(--shadow-deck);
}
.hero-proof::before,
.panel::before,
.contract-card::before {
  position: absolute;
  top: -1px;
  left: 1.5rem;
  width: 3rem;
  height: 1px;
  background: var(--copper-300);
  content: "";
}
.proof-seal {
  display: grid;
  width: 9rem;
  height: 9rem;
  margin: 0 auto 2rem;
  place-content: center;
  border: 1px solid var(--copper-400);
  border-radius: 50%;
  text-align: center;
}
.proof-seal span,
.proof-seal small { color: var(--copper-200); font: 800 0.62rem/1.2 var(--font-ui); letter-spacing: 0.14em; text-transform: uppercase; }
.proof-seal strong { color: var(--mineral-100); font: 500 4rem/0.9 var(--font-display); }
.hero-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin: 0; }
.hero-metrics div { padding-top: 0.8rem; border-top: 1px solid var(--line-soft); }
.hero-metrics dt { color: var(--mineral-400); font-size: 0.65rem; letter-spacing: 0.09em; text-transform: uppercase; }
.hero-metrics dd { margin: 0.2rem 0 0; font: 700 0.92rem/1.4 var(--font-mono); }

.publication-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: 100%;
  padding: 1.15rem max(1.5rem, calc((100vw - 92rem) / 2));
  border-block: 1px solid var(--line-soft);
  background: rgba(16, 19, 16, 0.72);
}
.publication-band span { padding: 0.15rem 1.25rem; border-left: 1px solid var(--line-soft); color: var(--mineral-400); font: 500 0.68rem/1.45 var(--font-mono); }
.publication-band span:first-child { padding-left: 0; border-left: 0; }
.publication-band strong { display: block; color: var(--mineral-200); font: 800 0.61rem/1.4 var(--font-ui); letter-spacing: 0.1em; text-transform: uppercase; }

.notice {
  position: sticky;
  top: 5.5rem;
  z-index: 15;
  width: min(52rem, calc(100vw - 2rem));
  margin: 1rem auto -4rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--rust-300);
  border-radius: 0.3rem;
  background: #2b1d18;
  color: #ffd8c8;
  box-shadow: var(--shadow-deck);
  font-size: 0.82rem;
}
.notice[data-state="success"] { border-color: var(--verdigris-300); background: #17261f; color: var(--verdigris-200); }

.research-section,
.contract-section,
.replay-section,
.safety-section,
.results-section,
.analysis-section,
.run-section,
.curriculum-section { padding-block: clamp(5rem, 9vw, 9rem); }
.research-section + .contract-section,
.contract-section + .replay-section,
.replay-section + .safety-section,
.safety-section + .results-section,
.results-section + .analysis-section,
.analysis-section + .run-section,
.run-section + .curriculum-section { border-top: 1px solid var(--line-soft); }
.section-grid { display: grid; grid-template-columns: minmax(16rem, 0.7fr) minmax(0, 1.3fr); gap: clamp(3rem, 8vw, 9rem); }
.section-heading { max-width: 41rem; }
.section-heading--wide { max-width: 58rem; }
.section-heading h2 { font-size: clamp(2.4rem, 4.6vw, 5rem); line-height: 1.02; }
.section-heading > p:last-child,
.section-intro { color: var(--mineral-300); }
.prose-block { max-width: 52rem; color: var(--mineral-200); font: 400 clamp(1.08rem, 1.7vw, 1.3rem)/1.7 var(--font-display); }
.prose-block p { margin: 0 0 1.4rem; }

.contract-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 4rem;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.contract-card {
  position: relative;
  min-height: 24rem;
  padding: 2rem;
  background: var(--ink-950);
}
.card-index { color: var(--copper-300); font: 700 0.7rem/1 var(--font-mono); }
.contract-card h3,
.panel h3,
.analysis-grid h3 { margin: 2.8rem 0 1rem; font: 500 1.65rem/1.15 var(--font-display); }
.contract-card p { color: var(--mineral-300); font-size: 0.88rem; }
.contract-card code { color: var(--verdigris-200); font: 600 0.7rem/1.6 var(--font-mono); overflow-wrap: anywhere; }
.contract-card .card-rule { color: var(--copper-200); }

.replay-heading { display: flex; max-width: none; align-items: end; justify-content: space-between; gap: 2rem; }
.replay-tools { display: flex; max-width: 30rem; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 0.75rem; color: var(--mineral-400); font-size: 0.72rem; text-align: right; }
#local-replay { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.text-button,
.copy-button {
  border: 0;
  background: transparent;
  color: var(--copper-200);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.text-button:hover,
.copy-button:hover { color: var(--mineral-100); }

.replay-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(19rem, 0.65fr); gap: 1rem; margin-top: 3rem; align-items: start; }
.replay-sidebar { display: grid; gap: 1rem; }
.replay-grid > *,
.replay-sidebar > *,
.evidence-grid > * { min-width: 0; }
.panel {
  position: relative;
  border: 1px solid var(--line-soft);
  background: linear-gradient(160deg, rgba(36, 44, 38, 0.8), rgba(20, 24, 20, 0.88));
  box-shadow: 0 1rem 3rem rgba(5, 8, 6, 0.18);
}
.panel-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding: 1.35rem 1.5rem; border-bottom: 1px solid var(--line-soft); }
.panel-header--compact { padding-block: 1.1rem; }
.panel-header h3 { margin: 0; font-size: 1.35rem; }
.kicker { margin-bottom: 0.25rem; font-size: 0.6rem; }
.inline-readouts { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1.4rem; margin: 0; }
.inline-readouts div { min-width: 4rem; }
.inline-readouts dt { color: var(--mineral-400); font-size: 0.57rem; font-weight: 800; letter-spacing: 0.09em; text-transform: uppercase; }
.inline-readouts dd { margin: 0.2rem 0 0; font: 700 0.7rem/1.2 var(--font-mono); }

.viewport-wrap { overflow-x: auto; padding: clamp(1rem, 2.6vw, 2rem); background: #090c0a; overscroll-behavior-x: contain; scrollbar-color: var(--ink-800) #090c0a; }
.ascii-frame {
  width: max-content;
  min-width: 80ch;
  margin: 0 auto;
  color: #e6e0d1;
  font: 400 clamp(0.56rem, 0.82vw, 0.76rem)/1.16 var(--font-mono);
  letter-spacing: 0;
  text-shadow: 0 0 0.65rem rgba(168, 205, 189, 0.12);
}
.frame-caption { display: flex; justify-content: space-between; gap: 1rem; padding: 0.75rem 1.5rem; border-top: 1px solid var(--line-soft); color: var(--mineral-400); font-size: 0.72rem; }
.mono { font-family: var(--font-mono); }
.timeline { display: grid; grid-template-columns: auto minmax(10rem, 1fr) auto; gap: 1.25rem; align-items: center; padding: 1rem 1.5rem 1.25rem; border-top: 1px solid var(--line-soft); }
.transport-controls { display: flex; gap: 0.35rem; }
.icon-button,
.play-button {
  min-width: 2.45rem;
  min-height: 2.45rem;
  border: 1px solid var(--line-medium);
  border-radius: 0.22rem;
  background: var(--ink-900);
  color: var(--mineral-100);
  cursor: pointer;
}
.play-button { display: inline-flex; min-width: 4.7rem; align-items: center; justify-content: center; gap: 0.45rem; }
.icon-button:hover:not(:disabled),
.play-button:hover:not(:disabled) { border-color: var(--copper-300); color: var(--copper-200); }
button:disabled { cursor: not-allowed; opacity: 0.42; }
.scrubber { display: grid; gap: 0.35rem; }
.scrubber label,
.speed-control { color: var(--mineral-400); font-size: 0.62rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.scrubber output { color: var(--mineral-200); font-family: var(--font-mono); }
.scrubber input { width: 100%; accent-color: var(--copper-300); }
.speed-control { display: grid; gap: 0.3rem; }
.speed-control select { min-height: 2.2rem; border: 1px solid var(--line-medium); background: var(--ink-900); color: var(--mineral-100); }

.verdict,
.snapshot-badge,
.record-count {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--line-medium);
  border-radius: 99rem;
  color: var(--mineral-300);
  font: 800 0.58rem/1 var(--font-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.verdict[data-state="success"] { border-color: var(--verdigris-400); background: var(--verdigris-wash); color: var(--verdigris-200); }
.verdict[data-state="failure"] { border-color: var(--rust-400); background: var(--rust-wash); color: var(--rust-300); }
.metric-quadrants { display: grid; grid-template-columns: 1fr 1fr; }
.metric-quadrants div { min-height: 7rem; padding: 1.2rem 1.35rem; border-right: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.metric-quadrants div:nth-child(even) { border-right: 0; }
.metric-quadrants div:nth-last-child(-n+2) { border-bottom: 0; }
.metric-quadrants span,
.metric-quadrants small { display: block; color: var(--mineral-400); font-size: 0.63rem; text-transform: uppercase; }
.metric-quadrants strong { display: block; margin: 0.3rem 0; color: var(--mineral-100); font: 500 1.65rem/1 var(--font-display); }

.fact-grid { display: grid; grid-template-columns: 1fr 1fr; margin: 0; padding: 0.8rem 1.5rem 1.4rem; gap: 0.9rem 1rem; }
.fact-grid div { min-width: 0; padding-top: 0.75rem; border-top: 1px solid var(--line-soft); }
.fact-grid dt { color: var(--mineral-400); font-size: 0.59rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.fact-grid dd { margin: 0.2rem 0 0; color: var(--mineral-200); font: 600 0.74rem/1.45 var(--font-mono); overflow-wrap: anywhere; }
.citizen-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 0; padding: 0; list-style: none; }
.citizen-list li { display: flex; min-width: 0; align-items: center; justify-content: space-between; gap: 0.6rem; padding: 0.75rem 1.1rem; border-right: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); font-size: 0.73rem; }
.citizen-list li:nth-child(even) { border-right: 0; }
.citizen-list li:nth-last-child(-n+2) { border-bottom: 0; }
.citizen-list strong { font: 700 0.68rem/1.3 var(--font-mono); }
.citizen-state { color: var(--verdigris-200); font-size: 0.58rem; letter-spacing: 0.06em; text-transform: uppercase; }
.citizen-state[data-state="warning"] { color: var(--rust-300); }
.empty-state { color: var(--mineral-400); font-style: italic; }

.evidence-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(18rem, 0.65fr); gap: 1rem; margin-top: 1rem; align-items: start; }
.causal-rail { display: grid; grid-template-columns: repeat(4, minmax(9rem, 1fr)); gap: 1px; margin: 0; padding: 0; background: var(--line-soft); list-style: none; }
.causal-rail li { background: var(--ink-950); }
.causal-button { width: 100%; min-height: 7.8rem; padding: 1rem; border: 0; background: transparent; color: var(--mineral-200); cursor: pointer; text-align: left; }
.causal-button:hover,
.causal-button[aria-pressed="true"] { background: var(--copper-wash); }
.causal-button[aria-pressed="true"] { box-shadow: inset 0 -2px var(--copper-300); }
.causal-button span,
.causal-button small { display: block; }
.causal-button span { color: var(--copper-200); font: 700 0.62rem/1.4 var(--font-mono); }
.causal-button strong { display: block; margin: 0.55rem 0 0.25rem; font: 600 0.85rem/1.3 var(--font-ui); }
.causal-button small { color: var(--mineral-400); font-size: 0.62rem; }
.consequence { min-height: 7rem; padding: 1.2rem 1.5rem; border-top: 1px solid var(--line-soft); }
.consequence-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin: 0; }
.consequence-grid div { min-width: 0; }
.consequence-grid dt { color: var(--mineral-400); font-size: 0.58rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.consequence-grid dd { margin: 0.25rem 0 0; color: var(--mineral-200); font: 600 0.67rem/1.45 var(--font-mono); overflow-wrap: anywhere; }
.failure-panel > p { margin: 0; padding: 0 1.5rem 1.5rem; color: var(--mineral-400); font-size: 0.78rem; }
.failure-panel code { color: var(--rust-300); }

.safety-section { display: grid; grid-template-columns: minmax(18rem, 0.75fr) minmax(0, 1.25fr); gap: clamp(3rem, 8vw, 8rem); align-items: start; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; border: 1px solid var(--line-soft); background: var(--line-soft); }
.safety-item { display: flex; min-height: 6rem; align-items: flex-start; gap: 0.8rem; padding: 1.2rem; background: var(--ink-950); }
.safety-item--wide { grid-column: 1 / -1; }
.safety-mark { width: 0.62rem; height: 0.62rem; flex: 0 0 auto; margin-top: 0.35rem; border: 1px solid var(--mineral-400); border-radius: 50%; }
.safety-item[data-state="verified"] .safety-mark { border-color: var(--verdigris-200); background: var(--verdigris-300); box-shadow: 0 0 0 0.22rem var(--verdigris-wash); }
.safety-item strong,
.safety-item span { display: block; }
.safety-item strong { font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; }
.safety-item div > span { margin-top: 0.25rem; color: var(--mineral-400); font: 500 0.65rem/1.5 var(--font-mono); overflow-wrap: anywhere; }

.section-intro { max-width: 58rem; }
.snapshot-badge { border-color: var(--copper-400); color: var(--copper-200); }
.table-wrap { margin-top: 2rem; overflow-x: auto; border: 1px solid var(--line-soft); }
table { width: 100%; min-width: 62rem; border-collapse: collapse; background: var(--ink-950); }
th, td { padding: 1rem 1.15rem; border-bottom: 1px solid var(--line-soft); text-align: left; }
th { color: var(--mineral-400); font-size: 0.59rem; letter-spacing: 0.09em; text-transform: uppercase; }
td { color: var(--mineral-200); font-size: 0.78rem; }
td code { display: block; max-width: 12rem; color: var(--verdigris-200); font: 500 0.62rem/1.4 var(--font-mono); overflow-wrap: anywhere; }
.table-state { color: var(--mineral-400); text-align: center; }
.result-pass { color: var(--verdigris-200); font-weight: 800; }

.analysis-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 3rem; border: 1px solid var(--line-soft); background: var(--line-soft); }
.analysis-grid article { padding: clamp(1.5rem, 3vw, 2.5rem); background: var(--ink-950); }
.analysis-grid h3 { margin: 0 0 1.3rem; }
.analysis-grid ul { margin: 0; padding-left: 1.2rem; color: var(--mineral-300); }
.analysis-grid li + li { margin-top: 0.75rem; }
.analysis-grid article:first-child li::marker { color: var(--verdigris-300); }
.analysis-grid article:last-child li::marker { color: var(--copper-300); }

.run-section { display: grid; grid-template-columns: minmax(20rem, 0.75fr) minmax(0, 1.25fr); gap: clamp(3rem, 8vw, 8rem); align-items: start; }
.command-stack { display: grid; gap: 0.75rem; }
.command-stack > div { position: relative; padding: 1rem 1.2rem; border: 1px solid var(--line-soft); background: var(--ink-950); }
.command-stack > div > span { display: block; padding-right: 4rem; color: var(--mineral-400); font-size: 0.62rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.command-stack pre { margin: 0.75rem 0 0; overflow-x: auto; color: var(--verdigris-200); font: 500 0.7rem/1.6 var(--font-mono); }
.copy-button { position: absolute; top: 0.9rem; right: 1rem; }
.doc-links { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; margin-top: 1rem; }
.doc-links a { padding: 0.8rem 1rem; border: 1px solid var(--line-soft); color: var(--mineral-300); font-size: 0.7rem; text-decoration: none; }
.doc-links a:hover { border-color: var(--copper-300); color: var(--copper-200); }

.curriculum-section { display: grid; grid-template-columns: minmax(18rem, 0.8fr) minmax(0, 1.2fr); gap: clamp(3rem, 8vw, 8rem); align-items: center; }
.curriculum-rail { position: relative; display: grid; gap: 1rem; margin: 0; padding: 0; list-style: none; }
.curriculum-rail::before { position: absolute; top: 2.8rem; bottom: 2.8rem; left: 1.75rem; width: 1px; background: var(--line-medium); content: ""; }
.curriculum-rail li { position: relative; display: flex; align-items: center; gap: 1rem; padding: 1.2rem; border: 1px solid var(--line-soft); background: var(--ink-950); }
.curriculum-rail li > span { z-index: 1; display: grid; width: 3.5rem; height: 3.5rem; flex: 0 0 auto; place-items: center; border: 1px solid var(--line-medium); border-radius: 50%; background: var(--ink-950); color: var(--mineral-300); font: 700 0.8rem/1 var(--font-mono); }
.curriculum-rail li[data-state="active"] { border-color: var(--copper-400); background: var(--copper-wash); }
.curriculum-rail li[data-state="active"] > span { border-color: var(--copper-300); color: var(--copper-200); }
.curriculum-rail strong,
.curriculum-rail small { display: block; }
.curriculum-rail strong { font-family: var(--font-display); font-size: 1.2rem; font-weight: 500; }
.curriculum-rail small { color: var(--mineral-400); font-size: 0.68rem; }
.curriculum-note { grid-column: 2; margin: -2rem 0 0; color: var(--mineral-400); font-size: 0.78rem; }
.curriculum-note strong { color: var(--copper-200); }

.site-footer {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  padding: 2rem max(1.5rem, calc((100vw - 92rem) / 2));
  border-top: 1px solid var(--line-soft);
  background: var(--ink-1000);
  color: var(--mineral-400);
  font-size: 0.65rem;
}
.site-footer > div { display: grid; gap: 0.25rem; }
.site-footer > div:nth-child(2) { text-align: center; }
.site-footer > div:last-child { text-align: right; }
.site-footer strong { color: var(--mineral-200); text-transform: uppercase; }
.site-footer code { font-family: var(--font-mono); }
.noscript { position: fixed; right: 1rem; bottom: 1rem; left: 1rem; z-index: 99; padding: 1rem; border: 1px solid var(--rust-300); background: #2b1d18; color: #ffd8c8; }

@media (max-width: 72rem) {
  :root { --page: min(100% - 2rem, 76rem); }
  .site-header { grid-template-columns: auto 1fr; padding-inline: 1rem; }
  .site-nav { order: 3; grid-column: 1 / -1; justify-content: flex-start; overflow-x: auto; padding: 0.2rem 0 0.4rem; }
  .service-readout { justify-self: end; }
  .hero { grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.55fr); gap: 3rem; }
  .contract-grid { grid-template-columns: 1fr 1fr; }
  .contract-card { min-height: 20rem; }
  .replay-grid,
  .evidence-grid { grid-template-columns: 1fr; }
  .replay-sidebar { grid-template-columns: 1fr 1fr; }
  .citizen-panel { grid-column: 1 / -1; }
  .publication-band { grid-template-columns: 1fr 1fr; }
  .publication-band span:nth-child(3) { padding-left: 0; border-left: 0; }
  .publication-band span:nth-child(n+3) { margin-top: 0.8rem; }
}

@media (max-width: 48rem) {
  :root { --page: calc(100% - 1.25rem); }
  body { font-size: 0.95rem; }
  .site-header { position: relative; min-height: auto; gap: 0.75rem; }
  .brand-lockup small { display: none; }
  .service-readout small { font-size: 0.58rem; }
  .site-nav { gap: 1.3rem; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding-block: 4rem; }
  .hero h1 { font-size: clamp(3.25rem, 16vw, 5.2rem); }
  .hero-proof { max-width: none; }
  .proof-seal { width: 7.5rem; height: 7.5rem; }
  .publication-band { grid-template-columns: 1fr; padding-inline: 0.75rem; }
  .publication-band span { padding: 0.65rem 0; border-top: 1px solid var(--line-soft); border-left: 0; }
  .publication-band span:first-child { border-top: 0; }
  .publication-band span:nth-child(n+3) { margin-top: 0; }
  .research-section,
  .contract-section,
  .replay-section,
  .safety-section,
  .results-section,
  .analysis-section,
  .run-section,
  .curriculum-section { padding-block: 4.5rem; }
  .section-grid,
  .safety-section,
  .run-section,
  .curriculum-section { grid-template-columns: 1fr; gap: 2.5rem; }
  .section-heading h2 { font-size: clamp(2.35rem, 11vw, 3.6rem); }
  .contract-grid,
  .analysis-grid { grid-template-columns: 1fr; }
  .contract-card { min-height: auto; }
  .replay-heading { display: grid; align-items: start; }
  .replay-tools { justify-content: flex-start; text-align: left; }
  .replay-sidebar { grid-template-columns: 1fr; }
  .citizen-panel { grid-column: auto; }
  .panel-header { display: grid; }
  .inline-readouts { justify-content: flex-start; gap: 0.9rem; }
  .timeline { grid-template-columns: 1fr; }
  .transport-controls { display: grid; grid-template-columns: repeat(5, 1fr); }
  .icon-button,
  .play-button { width: 100%; min-height: 2.75rem; }
  .play-button { min-width: 0; }
  .fact-grid { grid-template-columns: 1fr 1fr; }
  .citizen-list { grid-template-columns: 1fr; }
  .citizen-list li { border-right: 0; }
  .citizen-list li:nth-last-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
  .citizen-list li:last-child { border-bottom: 0; }
  .causal-rail { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; }
  .causal-rail li { min-width: min(75vw, 16rem); scroll-snap-align: start; }
  .consequence-grid { grid-template-columns: 1fr 1fr; }
  .safety-grid { grid-template-columns: 1fr; }
  .safety-item--wide { grid-column: auto; }
  .doc-links { grid-template-columns: 1fr; }
  .curriculum-note { grid-column: auto; margin: 0; }
  .site-footer { grid-template-columns: 1fr; padding-inline: 1rem; }
  .site-footer > div:nth-child(2),
  .site-footer > div:last-child { text-align: left; }
}

@media (max-width: 28rem) {
  .site-header { grid-template-columns: 1fr auto; }
  .brand-lockup strong { font-size: 0.72rem; }
  .service-readout span:last-child { display: none; }
  .hero-actions { display: grid; }
  .primary-link,
  .secondary-link { width: 100%; }
  .hero-metrics { grid-template-columns: 1fr; }
  .metric-quadrants { grid-template-columns: 1fr; }
  .metric-quadrants div { border-right: 0; }
  .metric-quadrants div:nth-last-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
  .metric-quadrants div:last-child { border-bottom: 0; }
  .fact-grid,
  .consequence-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}