:root {
  color-scheme: light dark;
  --bg: #08111f;
  --surface: #101d30;
  --text: #edf4ff;
  --muted: #aebdd2;
  --accent: #54d6ff;
  --border: #263850;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, #123f58 0, transparent 34rem),
    var(--bg);
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 72px;
}

header,
section {
  margin-bottom: 20px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
}

h1,
h2 {
  line-height: 1.2;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 6vw, 3rem);
}

h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

p,
ul {
  margin: 8px 0;
}

a {
  color: var(--accent);
}

.eyebrow,
.updated {
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 4px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 20px;
}

footer {
  color: var(--muted);
  text-align: center;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f8fc;
    --surface: #ffffff;
    --text: #102033;
    --muted: #566b83;
    --accent: #006f91;
    --border: #d7e2eb;
  }
}