:root {
  --ink: #101b36;
  --ink-soft: #263452;
  --paper: #f5f3ed;
  --paper-bright: #fffdf8;
  --line: rgba(16, 27, 54, 0.14);
  --muted: #697188;
  --red: #e34547;
  --red-dark: #c93238;
  --blue: #8fb6ff;
  --mint: #a7e5d2;
  --white: #ffffff;
  --shell: min(1180px, calc(100vw - 48px));
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--white);
  color: var(--ink);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 20;
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.site-header.is-scrolled {
  position: fixed;
  color: var(--ink);
  background: rgba(245, 243, 237, 0.94);
  border-color: var(--line);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  animation: header-in 220ms ease;
}
@keyframes header-in { from { transform: translateY(-100%); } }
.header-inner { height: 76px; display: flex; align-items: center; gap: 44px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 14px; font-weight: 800; letter-spacing: 0.12em; }
.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 17px;
  font-style: italic;
}
.site-nav { display: flex; gap: 28px; margin-left: auto; }
.site-nav a, .header-link { font-size: 13px; font-weight: 650; }
.site-nav a { opacity: 0.7; transition: opacity 160ms ease; }
.site-nav a:hover, .site-nav a:focus-visible { opacity: 1; }
.nav-toggle { display: none; }
.header-link { padding: 10px 15px; border: 1px solid currentColor; border-radius: 999px; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: 780px;
  padding: 154px 0 98px;
  background: var(--ink);
  color: var(--white);
}
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.13;
  background-image: linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to right, transparent 3%, black 55%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 3%, black 55%, transparent 100%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(2px); opacity: 0.8; }
.hero-glow-one { width: 460px; height: 460px; right: -150px; top: 70px; background: radial-gradient(circle, rgba(79, 111, 205, .42), transparent 68%); }
.hero-glow-two { width: 390px; height: 390px; left: 36%; bottom: -230px; background: radial-gradient(circle, rgba(227, 69, 71, .22), transparent 70%); }
.hero-layout { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 72px; align-items: center; }
.eyebrow, .kicker { margin: 0 0 23px; text-transform: uppercase; font-size: 12px; font-weight: 800; letter-spacing: .16em; }
.eyebrow { display: flex; align-items: center; gap: 11px; color: #cbd6f0; }
.eyebrow span { width: 26px; height: 2px; background: var(--red); }
.hero h1 { max-width: 760px; margin: 0; font-size: clamp(54px, 6vw, 88px); line-height: .96; letter-spacing: -.055em; }
.hero h1 em { color: var(--blue); font-family: var(--serif); font-weight: 400; }
.hero-lead { max-width: 670px; margin: 31px 0 0; color: #b8c2d9; font-size: 18px; line-height: 1.68; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 22px; border-radius: 4px; font-size: 14px; font-weight: 750; transition: transform 160ms ease, background 160ms ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { gap: 10px; background: var(--red); color: var(--white); }
.button-primary:hover { background: var(--red-dark); }
.button-secondary { border: 1px solid rgba(255,255,255,.36); color: var(--white); }

.hero-panel {
  position: relative;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, .17);
  background: rgba(255,255,255,.055);
  box-shadow: 0 30px 80px rgba(0,0,0,.2);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.panel-topline { display: flex; justify-content: space-between; color: #9faac2; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.live-dot { display: flex; align-items: center; gap: 7px; color: var(--mint); }
.live-dot i { width: 6px; height: 6px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 5px rgba(167,229,210,.1); }
.panel-wordmark { display: grid; grid-template-columns: repeat(2,1fr); margin: 46px 0; }
.panel-wordmark span { display: grid; height: 82px; place-items: center; border: 1px solid rgba(255,255,255,.17); font-family: var(--serif); font-size: 34px; font-style: italic; }
.panel-wordmark span:nth-child(1), .panel-wordmark span:nth-child(4) { color: var(--blue); background: rgba(143,182,255,.08); }
.panel-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.panel-stats div { display: flex; flex-direction: column; gap: 5px; }
.panel-stats strong { font-family: var(--serif); font-size: 34px; font-weight: 400; }
.panel-stats span { color: #9faac2; font-size: 10px; line-height: 1.4; text-transform: uppercase; letter-spacing: .06em; }
.panel-note { margin: 26px 0 0; padding-top: 19px; border-top: 1px solid rgba(255,255,255,.14); color: #aeb9d0; font-size: 12px; line-height: 1.6; }

.proof-strip { background: var(--paper-bright); border-bottom: 1px solid var(--line); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-grid div { padding: 24px 28px; border-left: 1px solid var(--line); }
.proof-grid div:last-child { border-right: 1px solid var(--line); }
.proof-grid span, .proof-grid strong { display: block; }
.proof-grid span { margin-bottom: 6px; color: var(--muted); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.proof-grid strong { font-size: 14px; }

.section { padding: 116px 0; }
.section-heading { margin-bottom: 58px; }
.split-heading { display: grid; grid-template-columns: 1fr .72fr; gap: 90px; align-items: end; }
.section-heading h2, .qa-copy h2, .citation-layout h2 { margin: 0; font-size: clamp(42px, 4.4vw, 64px); line-height: 1.02; letter-spacing: -.045em; }
.section-heading > p, .split-heading > p, .qa-copy > p, .citation-layout > div > p:last-child { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.75; }
.kicker { color: var(--red-dark); }
.principles-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 16px; }
.principle-card { position: relative; min-height: 286px; padding: 34px; background: var(--paper-bright); border: 1px solid var(--line); }
.principle-card:nth-child(3) { grid-column: 2; }
.principle-featured { grid-row: span 2; min-height: 588px; display: flex; flex-direction: column; background: #dfe8f7; }
.card-index { color: var(--red-dark); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.principle-card h3 { margin: auto 0 14px; font-size: 30px; letter-spacing: -.03em; }
.principle-card p { margin: 0; color: var(--ink-soft); font-size: 15px; line-height: 1.72; }
.principle-featured h3 { margin-top: auto; font-size: 47px; }
.task-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.task-cloud span { padding: 8px 12px; border: 1px solid rgba(16,27,54,.2); border-radius: 999px; font-size: 11px; font-weight: 700; }

.datasets-section { background: var(--ink); color: var(--white); }
.datasets-heading { display: grid; grid-template-columns: 1fr .72fr; gap: 90px; align-items: end; }
.datasets-heading > p { color: #aeb9d0; }
.kicker-light { color: var(--mint); }
.dataset-list { border-top: 1px solid rgba(255,255,255,.16); }
.dataset-row { display: grid; grid-template-columns: 56px 1fr 1.25fr auto; gap: 18px; align-items: center; min-height: 104px; border-bottom: 1px solid rgba(255,255,255,.14); transition: background 160ms ease, padding 160ms ease; }
.dataset-row:hover { padding-inline: 14px; background: rgba(255,255,255,.035); }
.dataset-number { color: #6f7c98; font-size: 11px; }
.dataset-row h3 { margin: 0 0 5px; font-size: 19px; }
.dataset-row p { margin: 0; color: #8995ad; font-size: 12px; }
.dataset-task { color: #b5bfd3; font-size: 13px; }
.dataset-row a { color: var(--mint); font-size: 12px; font-weight: 750; }
.dataset-directory { padding: 30px 0 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.dataset-directory > h3 { margin: 0 0 18px; color: var(--blue); font-size: 13px; font-weight: 750; letter-spacing: .04em; text-transform: uppercase; }
.more-datasets-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; padding-bottom: 28px; background: rgba(255,255,255,.12); }
.more-datasets-grid a, .more-datasets-grid .dataset-static { display: flex; justify-content: space-between; gap: 18px; padding: 22px; background: #15213e; }
.more-datasets-grid .dataset-static:last-child:nth-child(odd) { grid-column: 1 / -1; }
.more-datasets-grid strong { font-size: 13px; }
.more-datasets-grid span { color: #8f9bb2; font-size: 11px; }

.qa-section { background: #dce8ff; }
.qa-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 96px; align-items: start; }
.qa-copy > p { margin-top: 25px; color: var(--ink-soft); }
.inline-link { display: inline-flex; gap: 9px; align-items: center; margin-top: 24px; color: var(--red-dark); font-size: 13px; font-weight: 800; }
.inline-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.qa-cards { display: grid; gap: 12px; }
.qa-cards a { position: relative; display: grid; grid-template-columns: 110px 1fr auto; align-items: center; min-height: 104px; padding: 22px 24px; background: rgba(255,255,255,.66); border: 1px solid rgba(16,27,54,.13); transition: transform 160ms ease, background 160ms ease; }
.qa-cards a:hover { transform: translateX(5px); background: var(--white); }
.qa-cards span { color: var(--red-dark); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.qa-cards strong { font-size: 21px; }
.qa-cards small { color: var(--muted); }

.pipeline-section { background: #e9e6de; }
.pipeline-heading { display: grid; grid-template-columns: 1fr .72fr; gap: 90px; align-items: end; }
.pipeline-heading > p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.75; }
.pipeline-overview { display: grid; grid-template-columns: repeat(3, 1fr); margin-bottom: 20px; border: 1px solid var(--line); background: var(--paper-bright); }
.pipeline-overview div { display: flex; min-height: 118px; flex-direction: column; justify-content: center; padding: 24px 30px; border-right: 1px solid var(--line); }
.pipeline-overview div:last-child { border-right: 0; }
.pipeline-overview strong { font-family: var(--serif); font-size: 43px; font-weight: 400; line-height: 1; }
.pipeline-overview span { margin-top: 9px; color: var(--muted); font-size: 10px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.pipeline-legend { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-bottom: 78px; background: var(--line); border: 1px solid var(--line); }
.pipeline-legend div { display: grid; grid-template-columns: 12px 1fr; gap: 5px 10px; padding: 22px; background: #efede7; }
.pipeline-legend strong { font-size: 12px; }
.pipeline-legend p { grid-column: 2; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.status-dot { width: 8px; height: 8px; margin-top: 3px; border-radius: 50%; }
.status-candidate { background: var(--red); }
.status-preview { background: #d09b34; }
.status-public { background: #5a76ae; }
.pipeline-subheading, .catalogue-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 28px; }
.pipeline-subheading .kicker, .catalogue-heading .kicker { margin-bottom: 11px; }
.pipeline-subheading h3, .catalogue-heading h3 { margin: 0; font-size: clamp(30px, 3.5vw, 46px); letter-spacing: -.035em; }
.pipeline-subheading > p { max-width: 470px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.pipeline-status { padding: 24px; border: 1px solid var(--line); background: var(--paper-bright); color: var(--muted); font-size: 13px; }
.pipeline-status.is-error { color: var(--red-dark); }
.pipeline-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.pipeline-card { position: relative; display: flex; min-height: 430px; flex-direction: column; overflow: hidden; padding: 30px; border: 1px solid var(--line); background: var(--paper-bright); }
.pipeline-card::before { position: absolute; inset: 0 0 auto; height: 5px; content: ""; }
.pipeline-aitax::before { background: #4168b2; }
.pipeline-juddges::before { background: var(--red); }
.pipeline-card:last-child:nth-child(odd) { grid-column: 1 / -1; min-height: 380px; }
.pipeline-card-topline { display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.pipeline-status-label { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); }
.pipeline-status-label i { display: inline-block; width: 7px; height: 7px; flex: 0 0 auto; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 5px rgba(16,27,54,.06); }
.maturity-benchmark_candidate { color: var(--red-dark); }
.maturity-public_preview { color: #9a6810; }
.maturity-public_dataset { color: #49669f; }
.pipeline-card-meta { margin: 48px 0 8px; color: var(--muted); font-size: 10px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.pipeline-card h4 { margin: 0 0 15px; font-family: var(--serif); font-size: clamp(34px, 4vw, 51px); font-weight: 400; line-height: 1.02; letter-spacing: -.04em; }
.pipeline-card-summary { max-width: 650px; margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.7; }
.pipeline-card-size { margin: 15px 0 0; color: var(--muted); font-size: 11px; font-weight: 700; }
.pipeline-gate { display: flex; flex-direction: column; gap: 7px; margin-top: auto; padding-top: 24px; border-top: 1px solid var(--line); }
.pipeline-gate strong { color: var(--red-dark); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.pipeline-gate span { color: var(--muted); font-size: 11px; line-height: 1.5; }
.pipeline-card-links { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 20px; }
.pipeline-link { font-size: 12px; font-weight: 800; }
.pipeline-link:hover { color: var(--red-dark); }
.catalogue-heading { margin-top: 82px; }
.catalogue-filters { display: flex; flex-wrap: wrap; gap: 7px; }
.catalogue-filters button { padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--muted); cursor: pointer; font-size: 11px; font-weight: 750; }
.catalogue-filters button[aria-pressed="true"] { border-color: var(--ink); background: var(--ink); color: var(--white); }
.pipeline-catalogue { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.catalogue-group { min-width: 0; border: 1px solid var(--line); background: var(--paper-bright); }
.catalogue-group-heading { display: flex; align-items: center; justify-content: space-between; padding: 24px; border-bottom: 1px solid var(--line); }
.catalogue-group-heading h4 { margin: 0; font-size: 18px; }
.catalogue-group-heading span { color: var(--muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.catalogue-list { display: flex; flex-direction: column; }
.catalogue-row { display: grid; grid-template-columns: minmax(0, 1fr) auto 18px; gap: 16px; align-items: center; min-height: 82px; padding: 16px 20px; border-bottom: 1px solid var(--line); transition: background 150ms ease; }
.catalogue-row:last-child { border-bottom: 0; }
.catalogue-row:hover { background: #f3f0e9; }
.catalogue-identity { display: flex; min-width: 0; flex-direction: column; gap: 5px; }
.catalogue-identity strong { overflow: hidden; font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.catalogue-identity small { overflow: hidden; color: var(--muted); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.catalogue-tags { display: flex; align-items: end; flex-direction: column; gap: 5px; color: var(--muted); font-size: 9px; white-space: nowrap; }
.catalogue-tags .maturity-text { font-weight: 800; }
.catalogue-arrow { color: var(--red-dark); font-size: 13px; }
.pipeline-note { display: grid; grid-template-columns: 210px 1fr; gap: 30px; margin-top: 32px; padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.pipeline-note strong { font-size: 13px; }
.pipeline-note p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }

.resources-section { background: var(--paper-bright); }
.resource-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.resource-card { position: relative; display: flex; min-height: 230px; flex-direction: column; padding: 30px; border: 1px solid var(--line); background: var(--paper); transition: transform 170ms ease, box-shadow 170ms ease; }
.resource-card:hover { transform: translateY(-4px); box-shadow: 0 18px 50px rgba(16,27,54,.08); }
.resource-card.resource-dark { background: var(--ink); color: var(--white); }
.resource-featured { grid-column: 1 / -1; min-height: 200px; }
.resource-type { color: var(--red-dark); font-size: 10px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.resource-dark .resource-type { color: var(--mint); }
.resource-card strong { margin-top: auto; font-size: 30px; }
.resource-card small { margin-top: 8px; color: var(--muted); font-size: 13px; }
.resource-dark small { color: #aeb9d0; }
.resource-card i { position: absolute; top: 28px; right: 28px; font-style: normal; }
.repro-note { display: grid; grid-template-columns: 210px 1fr; gap: 30px; margin-top: 32px; padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.repro-note strong { font-size: 13px; }
.repro-note p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }

.citation-section { background: var(--red-dark); color: var(--white); }
.citation-layout { display: grid; grid-template-columns: .62fr 1.38fr; gap: 72px; align-items: start; }
.citation-layout > div > p:last-child { margin-top: 22px; color: rgba(255,255,255,.72); }
.citation-card { position: relative; overflow: auto; background: #0c1730; border: 1px solid rgba(255,255,255,.14); }
.citation-card pre { margin: 0; padding: 34px; color: #d9e3f8; font: 12px/1.75 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.copy-button { position: absolute; top: 14px; right: 14px; z-index: 2; padding: 9px 12px; border: 1px solid rgba(255,255,255,.18); border-radius: 3px; background: #172341; color: var(--white); cursor: pointer; font-size: 10px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.copy-button:hover { background: #233252; }

.site-footer { padding: 70px 0 24px; background: #09132a; color: var(--white); }
.footer-top { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; padding-bottom: 64px; }
.brand-footer { margin-bottom: 20px; }
.footer-top > div > p { max-width: 360px; color: #8f9bb2; font-size: 13px; line-height: 1.7; }
.footer-links { display: grid; grid-template-columns: repeat(3,1fr); gap: 30px; }
.footer-links div { display: flex; flex-direction: column; gap: 12px; }
.footer-links strong { margin-bottom: 6px; color: #6f7c98; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.footer-links a, .footer-links span { color: #c2cce0; font-size: 13px; overflow-wrap: anywhere; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); color: #68758f; font-size: 10px; letter-spacing: .06em; text-transform: uppercase; }

:focus-visible { outline: 2px solid var(--white); outline-offset: 2px; box-shadow: 0 0 0 4px var(--ink); }

@media (max-width: 1100px) {
  .header-inner { gap: 24px; }
  .site-nav { gap: 18px; }
}

@media (max-width: 960px) {
  .header-inner { gap: 12px; }
  .nav-toggle { display: inline-flex; align-items: center; min-height: 38px; margin-left: auto; padding: 0 13px; border: 1px solid currentColor; border-radius: 999px; background: transparent; color: inherit; cursor: pointer; font-size: 11px; font-weight: 750; }
  .site-nav { display: none; position: absolute; top: 100%; left: 0; width: 100%; flex-direction: column; gap: 0; margin: 0; padding: 10px max(24px, calc((100vw - 1180px) / 2)); background: var(--paper-bright); color: var(--ink); border-bottom: 1px solid var(--line); box-shadow: 0 18px 40px rgba(16,27,54,.12); }
  .site-nav a { padding: 13px 0; border-bottom: 1px solid var(--line); opacity: 1; }
  .site-nav a:last-child { border-bottom: 0; }
  .site-header.is-menu-open { color: var(--ink); background: var(--paper-bright); border-color: var(--line); }
  .site-header.is-menu-open .site-nav { display: flex; }
  .hero { min-height: 0; }
  .hero-layout { grid-template-columns: 1fr; }
  .hero-panel { max-width: 620px; }
  .split-heading, .datasets-heading, .qa-layout, .pipeline-heading, .citation-layout { grid-template-columns: 1fr; gap: 34px; }
  .principles-grid { grid-template-columns: 1fr 1fr; }
  .principle-featured { grid-column: span 2; grid-row: auto; min-height: 420px; }
  .principle-card:nth-child(3) { grid-column: auto; }
  .qa-cards { margin-top: 20px; }
  .pipeline-catalogue { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  :root { --shell: min(100% - 30px, 1180px); }
  .header-inner { height: 66px; }
  .header-link { padding: 8px 11px; font-size: 11px; }
  .hero { padding: 124px 0 70px; }
  .hero h1 { font-size: clamp(47px, 14vw, 66px); }
  .hero-lead { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .hero-panel { padding: 20px; }
  .panel-wordmark { margin: 34px 0; }
  .panel-wordmark span { height: 64px; font-size: 27px; }
  .panel-stats { gap: 7px; }
  .panel-stats strong { font-size: 29px; }
  .proof-grid { grid-template-columns: repeat(2,1fr); }
  .proof-grid div:nth-child(3) { border-top: 1px solid var(--line); }
  .proof-grid div:nth-child(4) { border-top: 1px solid var(--line); }
  .section { padding: 80px 0; }
  .section-heading { margin-bottom: 38px; }
  .section-heading h2, .qa-copy h2, .citation-layout h2 { font-size: 40px; }
  .principles-grid, .pipeline-grid, .resource-grid { grid-template-columns: 1fr; }
  .principle-featured { grid-column: auto; min-height: 390px; }
  .dataset-row { grid-template-columns: 36px 1fr auto; padding: 18px 0; }
  .dataset-task { grid-column: 2 / -1; grid-row: 2; }
  .dataset-row a { grid-column: 3; grid-row: 1; font-size: 0; }
  .dataset-row a::after { content: "↗"; font-size: 15px; }
  .more-datasets-grid { grid-template-columns: 1fr; }
  .more-datasets-grid a, .more-datasets-grid .dataset-static { flex-direction: column; gap: 6px; }
  .more-datasets-grid .dataset-static:last-child:nth-child(odd) { grid-column: auto; }
  .qa-cards a { grid-template-columns: 78px 1fr; }
  .qa-cards small { grid-column: 2; margin-top: 7px; }
  .resource-card { min-height: 210px; }
  .resource-featured { grid-column: auto; }
  .pipeline-overview { grid-template-columns: 1fr; }
  .pipeline-overview div { min-height: 92px; border-right: 0; border-bottom: 1px solid var(--line); }
  .pipeline-overview div:last-child { border-bottom: 0; }
  .pipeline-legend { grid-template-columns: 1fr; margin-bottom: 58px; }
  .pipeline-subheading, .catalogue-heading { align-items: start; flex-direction: column; gap: 20px; }
  .pipeline-card, .pipeline-card:last-child:nth-child(odd) { grid-column: auto; min-height: 410px; }
  .catalogue-row { grid-template-columns: minmax(0, 1fr) 18px; }
  .catalogue-tags { grid-column: 1; align-items: start; flex-direction: row; flex-wrap: wrap; }
  .catalogue-arrow { grid-column: 2; grid-row: 1 / span 2; }
  .pipeline-note { grid-template-columns: 1fr; gap: 10px; }
  .repro-note { grid-template-columns: 1fr; gap: 10px; }
  .citation-card pre { min-width: 620px; padding: 58px 24px 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 38px; }
  .footer-links { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}

.error-hero { min-height: 100vh; display: grid; place-items: center; padding: 40px 0; }
.error-content { position: relative; text-align: center; }
.error-content .eyebrow, .error-content .hero-actions { justify-content: center; }
.error-content h1 { font-size: clamp(52px, 10vw, 110px); }
.error-content .hero-lead { margin: 28px auto; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}