:root {
  --background: #ffffff;
  --foreground: #0b1220;
  --muted: #5b6475;
  --accent: #3b82c4;
  --border: #e5e7eb;
}
@media (prefers-color-scheme: dark) {
  :root {
    --background: #0b0f17;
    --foreground: #e8ebf1;
    --muted: #9aa3b2;
    --accent: #7cb7ea;
    --border: #232a36;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.65;
}
main { max-width: 720px; margin: 0 auto; padding: 40px 16px 64px; }
.brand { font-size: 11px; font-weight: 600; letter-spacing: 0.2em; margin: 0 0 32px; }
.brand a { color: var(--muted); text-decoration: none; }
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 6px; }
.updated { color: var(--muted); font-size: 13px; margin: 0 0 28px; }
h2 { font-size: 17px; margin: 32px 0 8px; padding-top: 16px; border-top: 1px solid var(--border); }
p, li { font-size: 15px; }
ul { padding-left: 20px; }
li { margin: 6px 0; }
a { color: var(--accent); }
code { font-size: 13px; background: var(--border); padding: 1px 5px; border-radius: 4px; }
.links { margin-top: 40px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 14px; }