:root {
  --bg: #fbfbfa;
  --fg: #1d1f21;
  --muted: #5c6166;
  --line: #dcdcd8;
  --accent: #1f5f8b;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181a;
    --fg: #e6e6e3;
    --muted: #a0a5aa;
    --line: #34383c;
    --accent: #7db8e0;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 1.0625rem/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1rem 4rem;
}

nav {
  text-align: right;
  font-size: 0.9375rem;
}

h1 {
  margin: 2rem 0 0.25rem;
  font-size: 2.25rem;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0 0 2.5rem;
  color: var(--muted);
}

h2 {
  margin: 2.5rem 0 0.75rem;
  font-size: 1.125rem;
}

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

dl {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 1.5rem;
  margin: 0;
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

dt { color: var(--muted); }
dd { margin: 0; }

@media (max-width: 30rem) {
  dl { grid-template-columns: 1fr; gap: 0; }
  dd { margin-bottom: 0.75rem; }
}

.small {
  font-size: 0.9375rem;
  color: var(--muted);
}