:root {
  color-scheme: light dark;
  --text: #1f2328;
  --muted: #59636e;
  --bg: #ffffff;
  --surface: #f6f8fa;
  --border: #d1d9e0;
  --accent: #0b6e4f;
  --mark: #fff1a8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e6edf3;
    --muted: #9198a1;
    --bg: #0d1117;
    --surface: #151b23;
    --border: #3d444d;
    --accent: #4cc38a;
    --mark: #5c4a00;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    1rem/1.65 system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
  overflow-wrap: anywhere;
}

.page {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 4rem;
}

header {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  margin: 0 0 0.25rem;
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  line-height: 1.2;
}

h2 {
  margin: 2.5rem 0 0.75rem;
  font-size: 1.25rem;
  line-height: 1.3;
  scroll-margin-top: 1rem;
}

.updated {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
}

nav {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

nav h2 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}

nav ol {
  margin: 0;
  padding-left: 1.25rem;
  columns: 2;
  column-gap: 2rem;
}

a {
  color: var(--accent);
  text-underline-offset: 0.15em;
}

ul {
  padding-left: 1.25rem;
}

li + li {
  margin-top: 0.35rem;
}

.table {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

th,
td {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface);
}

mark {
  padding: 0 0.2em;
  background: var(--mark);
  color: inherit;
  border-radius: 3px;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
}

@media (max-width: 40rem) {
  h1 {
    font-size: 1.625rem;
  }

  nav ol {
    columns: 1;
  }
}

@media print {
  nav {
    display: none;
  }

  a {
    color: inherit;
  }
}