:root {
  --bg: #ffffff;
  --fg: #16181d;
  --muted: #5d636e;
  --rule: #e4e6ea;
  --accent: #1f4ba8;
  --card: #f7f8fa;
  --max: 40rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d10;
    --fg: #e8e6e1;
    --muted: #9aa1ac;
    --rule: #22262d;
    --accent: #8fb4ff;
    --card: #12151a;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 ui-sans-serif, -apple-system, "Segoe UI", Inter, Helvetica, Arial, sans-serif;
  padding: 0 1.25rem;
}

header, main, footer {
  max-width: var(--max);
  margin: 0 auto;
}

header { padding: 2.5rem 0 1rem; }

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--fg);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.wordmark svg {
  width: 1.4rem;
  height: 1.4rem;
  fill: currentColor;
}

main { padding-bottom: 3rem; }

section { margin: 2.75rem 0; }

.hero { margin-top: 2rem; }

h1 {
  font-size: 1.85rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.7rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--rule);
}

h3 {
  font-size: 1rem;
  margin: 1.75rem 0 0.4rem;
}

p { margin: 0 0 1rem; }

.lede { color: var(--muted); }

.small { color: var(--muted); font-size: 0.875rem; }

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

ul { margin: 0 0 1rem; padding-left: 1.15rem; }
li { margin-bottom: 0.6rem; }

.facts {
  list-style: none;
  padding: 0;
}

.facts li {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin-bottom: 0.6rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 1.25rem;
  font-size: 0.94rem;
}

th, td {
  text-align: left;
  vertical-align: top;
  padding: 0.55rem 0.7rem 0.55rem 0;
  border-bottom: 1px solid var(--rule);
}

th { font-weight: 600; }

.updated {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 2rem;
}

footer {
  border-top: 1px solid var(--rule);
  padding: 1.5rem 0 3rem;
}

footer nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

footer p { margin: 0; }