:root {
  color-scheme: light dark;
  --fg: #1c1c1e;
  --bg: #ffffff;
  --muted: #6e6e73;
  --accent: #4a5fc1;
  --rule: #e5e5ea;
}
@media (prefers-color-scheme: dark) {
  :root { --fg: #f2f2f7; --bg: #111113; --muted: #98989f; --accent: #8fa0e8; --rule: #2c2c2e; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
}
main { max-width: 42rem; margin: 0 auto; padding: 3rem 1.25rem 5rem; }
header.site { padding: 1.25rem; border-bottom: 1px solid var(--rule); }
header.site a { font-weight: 700; font-size: 1.1rem; color: var(--fg); text-decoration: none; letter-spacing: 0.02em; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 0 0 0.25rem; }
h2 { font-size: 1.2rem; margin-top: 2.2rem; }
p.updated { color: var(--muted); margin-top: 0; }
a { color: var(--accent); }
footer { max-width: 42rem; margin: 0 auto; padding: 0 1.25rem 3rem; color: var(--muted); font-size: 0.9rem; }
ul { padding-left: 1.2rem; }
li { margin: 0.35rem 0; }
strong { font-weight: 650; }