:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5d6775;
  --line: #d8dee8;
  --paper: #f7f8fa;
  --panel: #ffffff;
  --accent: #1f6f8b;
  --accent-dark: #134b61;
  --soft: #eaf3f7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

.inline-link {
  color: var(--accent-dark);
  font-weight: 750;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.hero {
  min-height: 66vh;
  background: #f1f5f8;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--line);
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
}

.brand {
  font-size: 18px;
  font-weight: 800;
}

.links {
  display: flex;
  gap: 24px;
  font-size: 14px;
  font-weight: 650;
}

.hero-inner {
  width: min(1120px, calc(100% - 48px));
  margin: auto;
  padding: 72px 0 96px;
}

h1 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(40px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: 0;
}

.authors {
  max-width: 860px;
  margin: 24px 0 0;
  color: var(--accent-dark);
  font-size: 17px;
  font-weight: 650;
}

.affiliations {
  max-width: 900px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.subtitle {
  max-width: 760px;
  margin: 28px 0 0;
  font-size: 20px;
  color: var(--muted);
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  font-weight: 750;
  color: var(--accent-dark);
}

.button.primary {
  color: white;
  background: var(--accent);
  border-color: var(--accent);
}

.wide-figure,
figure img {
  width: 100%;
  height: auto;
  display: block;
}

.section {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  padding: 72px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 30px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h2 {
  margin: 0;
  font-size: 38px;
  line-height: 1.08;
  letter-spacing: 0;
}

.grid {
  display: grid;
  gap: 32px;
}

.grid.two {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.76fr);
  align-items: start;
}

.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.cards li,
.metric-card,
pre,
figure {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.cards li {
  padding: 18px;
}

.cards strong,
.cards span {
  display: block;
}

.cards span,
figcaption,
.section p {
  color: var(--muted);
}

.wide-figure {
  margin-top: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.metric-card {
  padding: 20px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

.metric-card strong {
  display: block;
  margin-top: 8px;
  font-size: 34px;
}

figure {
  margin: 0;
  padding: 14px;
}

figcaption {
  margin-top: 10px;
  font-size: 14px;
}

figure.full {
  margin-top: 28px;
}

.table-wrap {
  margin-top: 24px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}

th,
td {
  padding: 13px 15px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th {
  background: #eef4f7;
  color: var(--accent-dark);
  font-size: 13px;
}

tr:last-child td {
  border-bottom: 0;
}

.callout {
  margin-top: 22px;
  padding: 18px;
  border-left: 4px solid var(--accent);
  background: var(--soft);
  color: var(--muted);
}

.callout strong {
  color: var(--ink);
}

pre {
  margin: 0;
  padding: 18px;
  overflow-x: auto;
  background: #111820;
  color: #e8edf2;
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 14px;
}

@media (max-width: 760px) {
  .nav {
    padding: 0 24px;
  }

  .links {
    display: none;
  }

  .grid.two,
  .metrics {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 52px 0;
  }
}