:root {
  color-scheme: light;
  --bg: #f6f7f8;
  --surface: #ffffff;
  --text: #172026;
  --muted: #5e6b73;
  --line: #d9dfe3;
  --accent: #245d70;
  --accent-soft: #eaf1f3;
  --code: #eef1f2;
  --max: 1120px;
  --narrow: 780px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }

.shell {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}
.narrow { max-width: var(--narrow); }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: 8px 12px;
  border-radius: 6px;
  background: var(--text);
  color: white;
  transform: translateY(calc(-100% - 16px));
  transition: transform 120ms ease-out;
}
.skip-link:focus-visible { transform: translateY(0); }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(246, 247, 248, 0.96);
}
.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--text);
  border-radius: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}
.nav { display: flex; gap: 22px; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}
.nav a[aria-current="page"], .nav a:hover { color: var(--text); }

.hero {
  padding: 84px 0 70px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f9fafb 0%, var(--bg) 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.7fr);
  gap: 68px;
  align-items: end;
}
.hero-copy { min-width: 0; }
.eyebrow, .card-label {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
h1 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(2.8rem, 5.7vw, 4.9rem);
  line-height: 1;
  letter-spacing: -0.05em;
  font-weight: 760;
}
.hero-summary {
  max-width: 700px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(1.06rem, 1.8vw, 1.24rem);
  line-height: 1.58;
}
.hero-actions {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
}
.button {
  display: inline-block;
  padding: 11px 16px;
  border-radius: 8px;
  background: var(--text);
  color: white;
  text-decoration: none;
  font-weight: 700;
}
.text-link { font-weight: 700; text-decoration: none; }

.evidence-card, .side-note, .result-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(20, 30, 36, 0.04);
}
.evidence-card { padding: 24px; }
.evidence-card dl { margin: 0; }
.evidence-card dl > div {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}
.evidence-card dt { color: var(--muted); }
.evidence-card dd { margin: 0; font-weight: 700; text-align: right; }

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(220px, 1fr);
  gap: 72px;
  padding-top: 70px;
  padding-bottom: 72px;
  align-items: start;
}
.intro-copy h2 { margin-top: 0; }
.side-note {
  padding: 22px;
  color: var(--muted);
  font-size: 0.94rem;
}
.side-note p:last-child { margin-bottom: 0; }

.record-section {
  padding: 72px 0 78px;
  border-top: 1px solid var(--line);
  background: var(--surface);
}
.record-list {
  border-top: 1px solid var(--line);
}
.record-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(170px, 0.28fr);
  gap: 48px;
  padding: 25px 0 27px;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.record-stage {
  margin: 0 0 5px;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.record-main h3 {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
}
.record-main > p:last-child {
  max-width: 760px;
  margin: 8px 0 0;
  color: var(--muted);
}
.record-outcome {
  justify-self: end;
  padding: 6px 9px;
  border-radius: 6px;
  background: var(--code);
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: 0.04em;
  text-align: right;
}
.record-more { margin: 28px 0 0; }

.results-section {
  padding: 72px 0 78px;
  border-block: 1px solid var(--line);
  background: #f9fafb;
  scroll-margin-top: 24px;
}
.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}
.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}
.section-heading > p:last-child {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.04rem;
}
.result-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.35fr);
  gap: 22px;
  align-items: start;
}
.result-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 26px;
}
.result-card-featured { border-color: #cbd7dc; }
.result-card-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}
.result-kind {
  margin: 0 0 5px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.result-card h3 {
  margin: 0;
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  line-height: 1.18;
  letter-spacing: -0.025em;
}
.result-id {
  flex: 0 0 auto;
  padding: 5px 8px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.result-body {
  margin: 18px 0 0;
  color: var(--muted);
}
.metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.metric {
  min-width: 0;
  padding: 15px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.metric dt {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.35;
}
.metric dd {
  margin: 5px 0 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 5px 8px;
}
.metric strong {
  color: var(--text);
  font-size: 1.08rem;
}
.metric dd span {
  color: var(--muted);
  font-size: 0.76rem;
}
.metric-terminal code {
  padding: 5px 8px;
  border-radius: 5px;
  background: var(--code);
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 800;
}
.result-status {
  margin-top: auto;
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  color: var(--muted);
  font-size: 0.84rem;
}
.result-status code {
  padding: 5px 8px;
  border-radius: 5px;
  background: var(--code);
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 800;
}

.home-body {
  padding-top: 68px;
  padding-bottom: 88px;
}
.home-body .prose > h2:first-child { margin-top: 0; }

.page-header {
  padding: 78px 0 52px;
  border-bottom: 1px solid var(--line);
}
.page-header h1 { font-size: clamp(2.6rem, 6vw, 4.8rem); }
.page-description {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.16rem;
}
.page-body { padding-top: 58px; padding-bottom: 92px; }

.prose { font-size: 1.04rem; }
.prose h2 {
  margin: 3.1rem 0 0.9rem;
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.028em;
}
.prose h3 {
  margin: 2.2rem 0 0.6rem;
  font-size: 1.25rem;
  line-height: 1.3;
}
.prose p { margin: 0 0 1.15rem; }
.prose ul, .prose ol { padding-left: 1.35rem; }
.prose li { margin: 0.5rem 0; }
.prose blockquote {
  margin: 1.8rem 0;
  padding: 0.35rem 0 0.35rem 1.25rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-size: 1.08rem;
}
.prose code {
  padding: 0.12em 0.34em;
  border-radius: 4px;
  background: var(--code);
  font-size: 0.9em;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
}
.footer-inner {
  min-height: 104px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  font-size: 0.9rem;
}
.footer-inner p { margin: 0; }

@media (max-width: 900px) {
  .hero { padding: 68px 0 58px; }
  .hero-grid, .intro-grid { grid-template-columns: 1fr; gap: 38px; }
  .evidence-card { max-width: 540px; }
  .side-note { max-width: 540px; }
  .result-grid { grid-template-columns: 1fr; }
  .record-row { grid-template-columns: minmax(0, 1fr) minmax(150px, 0.3fr); gap: 28px; }
}

@media (max-width: 620px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .header-inner { min-height: 64px; }
  .brand span:last-child { display: none; }
  .nav { gap: 14px; }
  h1 {
    font-size: clamp(2.55rem, 13vw, 3.8rem);
    letter-spacing: -0.045em;
  }
  .hero { padding-top: 56px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 14px; }
  .evidence-card dl > div { grid-template-columns: 1fr; gap: 2px; }
  .evidence-card dd { text-align: left; }
  .intro-grid, .record-section, .results-section, .home-body { padding-top: 54px; padding-bottom: 58px; }
  .record-row { grid-template-columns: 1fr; gap: 13px; }
  .record-outcome { justify-self: start; text-align: left; }
  .result-card { padding: 21px; }
  .result-card-head { flex-direction: column-reverse; gap: 11px; }
  .metrics { grid-template-columns: 1fr; }
  .result-status { align-items: flex-start; flex-direction: column; gap: 8px; }
  .footer-inner { padding: 24px 0; align-items: flex-start; flex-direction: column; gap: 8px; }
}