:root {
  --bg: #ffffff;
  --fg: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #1b84ff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111318;
    --fg: #e5e7eb;
    --muted: #9ca3af;
    --line: #2a2e37;
    --accent: #5aa4ff;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font:
    16px / 1.65 system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
}
a {
  color: var(--accent);
}
.top,
main,
footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}
.top {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--fg);
  text-decoration: none;
}
nav {
  display: flex;
  gap: 16px;
}
nav a {
  text-decoration: none;
}
nav a[aria-current="page"] {
  font-weight: 600;
}
h1 {
  font-size: 30px;
  line-height: 1.25;
  margin: 32px 0 8px;
}
h2 {
  font-size: 20px;
  margin: 28px 0 8px;
}
.lead {
  font-size: 18px;
}
.muted {
  color: var(--muted);
  margin-top: 0;
}
code {
  font-size: 14px;
  word-break: break-all;
}
footer {
  color: var(--muted);
  font-size: 14px;
  padding-top: 24px;
  padding-bottom: 32px;
  margin-top: 40px;
  border-top: 1px solid var(--line);
}