:root {
  --bg: #0f1115;
  --surface: #171a21;
  --border: #262b36;
  --text: #e6e8ec;
  --muted: #9aa3b2;
  --accent: #7ab8ff;
  --accent-dim: #3d6ea8;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  font-size: 17px;
}

main {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

header.site {
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.25rem;
}

header.site nav {
  max-width: 46rem;
  margin: 0 auto;
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}

header.site a {
  color: var(--muted);
  text-decoration: none;
}

header.site a:hover,
header.site a.current {
  color: var(--text);
}

h1 {
  font-size: 1.9rem;
  line-height: 1.25;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.25rem;
  margin: 2.25rem 0 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

h3 {
  font-size: 1.05rem;
  margin: 1.5rem 0 0.5rem;
}

p.lede {
  color: var(--muted);
  font-size: 1.05rem;
  margin-top: 0;
}

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

a:hover {
  color: #a8d1ff;
}

ul {
  padding-left: 1.35rem;
}

li {
  margin: 0.4rem 0;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  margin: 1rem 0;
  text-decoration: none;
  color: var(--text);
}

.card:hover {
  border-color: var(--accent-dim);
}

.card h2 {
  margin: 0 0 0.35rem;
  padding: 0;
  border: none;
  font-size: 1.15rem;
  color: var(--accent);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.note {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-dim);
  border-radius: 6px;
  padding: 0.85rem 1.1rem;
  font-size: 0.95rem;
  color: var(--muted);
  margin: 1.5rem 0;
}

footer.site {
  max-width: 46rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

dl.facts {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.35rem 1.25rem;
  margin: 1rem 0;
}

dl.facts dt {
  color: var(--muted);
  font-weight: 600;
}

dl.facts dd {
  margin: 0;
}

@media (max-width: 480px) {
  dl.facts {
    grid-template-columns: 1fr;
    gap: 0.1rem;
  }
  dl.facts dt {
    margin-top: 0.6rem;
  }
}