:root {
  --bg: #f7f8fc;
  --fg: #1b1f2a;
  --muted: #5d6475;
  --accent: #4b61e0;
  --rule: #dfe3ee;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11141c; --fg: #e8ebf3; --muted: #9aa2b5; --accent: #8c9cff; --rule: #2a3040; }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 24px 16px 64px; }
h1 { font-size: 1.75rem; line-height: 1.25; margin: 0.5em 0 0.25em; }
h2 { font-size: 1.15rem; margin-top: 2em; }
a { color: var(--accent); }
.meta, .lang { color: var(--muted); font-size: 0.9rem; }
article + article { border-top: 1px solid var(--rule); margin-top: 48px; padding-top: 24px; }
li { margin: 0.35em 0; }