:root {
  --bg: #fbfaf7;
  --text: #1c1b19;
  --muted: #5d5a54;
  --line: #e4e0d8;
  --link: #1f5fbf;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151514;
    --text: #ecebe7;
    --muted: #a6a39c;
    --line: #2c2b28;
    --link: #8ab4f8;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 48px 16px 72px; }
nav { display: flex; gap: 20px; font-size: 14px; margin-bottom: 40px; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 36px 0 8px; }
p, li { color: var(--text); }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 32px; }
a { color: var(--link); }
footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }