:root {
  color-scheme: light;
  --ink: #182033;
  --muted: #586174;
  --line: #d9dfeb;
  --surface: #f5f7fb;
  --accent: #2459c7;
  --accent-dark: #173e91;
  --max-width: 70rem;
}

* { box-sizing: border-box; }
html { background: #fff; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}
a { color: var(--accent); text-underline-offset: 0.16em; }
a:hover { color: var(--accent-dark); }
a:focus-visible { outline: 3px solid #8eb4ff; outline-offset: 3px; border-radius: 2px; }
.site-header, main, footer { width: min(calc(100% - 2.5rem), var(--max-width)); margin-inline: auto; }
.site-header {
  min-height: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid var(--line);
}
.brand { color: var(--ink); font-size: 1.1rem; font-weight: 760; letter-spacing: -0.02em; text-decoration: none; }
nav { display: flex; gap: 1.25rem; }
nav a { font-size: 0.95rem; font-weight: 600; }
nav a[aria-current="page"] { color: var(--ink); text-decoration-thickness: 2px; }
.hero { max-width: 49rem; padding: clamp(4.5rem, 11vw, 8rem) 0 3.5rem; }
.eyebrow { margin: 0 0 0.75rem; color: var(--accent-dark); font-size: 0.83rem; font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; }
h1, h2 { color: var(--ink); line-height: 1.18; letter-spacing: -0.03em; }
h1 { margin: 0 0 1.25rem; font-size: clamp(2.3rem, 6vw, 4.5rem); }
h2 { margin: 2.5rem 0 0.75rem; font-size: clamp(1.3rem, 3vw, 1.65rem); }
.lede { max-width: 46rem; margin: 0; color: var(--muted); font-size: clamp(1.08rem, 2vw, 1.25rem); }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding-bottom: 1rem; }
.card, .callout { border: 1px solid var(--line); border-radius: 0.75rem; background: var(--surface); }
.card { padding: 1.5rem; }
.card h2 { margin: 0 0 0.65rem; font-size: 1.15rem; }
.card p, .callout p { margin: 0; color: var(--muted); }
.callout { margin: 2rem 0 5rem; padding: 1.7rem; }
.callout h2 { margin: 0 0 0.6rem; font-size: 1.3rem; }
.callout p + p { margin-top: 0.5rem; }
.document { max-width: 48rem; padding: clamp(3.5rem, 8vw, 6rem) 0 5rem; }
.document h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); }
.document h2 { margin-top: 2.6rem; }
.document p, .document li { color: #364052; }
.document ul { padding-left: 1.3rem; }
.document li + li { margin-top: 0.55rem; }
code { padding: 0.08em 0.28em; border-radius: 0.24rem; background: #edf1f8; color: #263959; overflow-wrap: anywhere; }
footer { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; padding: 1.75rem 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
footer span { margin-right: auto; }
@media (max-width: 42rem) {
  .site-header, main, footer { width: min(calc(100% - 2rem), var(--max-width)); }
  .site-header { min-height: 4.5rem; }
  .card-grid { grid-template-columns: 1fr; }
  footer span { width: 100%; }
}