:root {
  color-scheme: light dark;
  --bg: #fafafa;
  --text: #1a1a1a;
  --muted: #525252;
  --border: #e5e5e5;
  --link: #0154d2;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0a0a;
    --text: #fafafa;
    --muted: #a3a3a3;
    --border: #262626;
    --link: #60a5fa;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 1.25rem;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

.wrap {
  max-width: 42rem;
  margin: 0 auto;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.25;
  margin-top: 0;
}

h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

p,
li {
  margin: 0.5rem 0;
}

ul {
  padding-left: 1.25rem;
}

.muted {
  color: var(--muted);
  font-size: 0.95rem;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1rem 0;
}

th,
td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.6rem;
  text-align: left;
  vertical-align: top;
}

th {
  font-weight: 600;
}

.nav {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.nav a {
  margin-right: 1rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--muted);
}