:root {
  --bg: #ffffff; --fg: #1d1d1f; --muted: #5f6368; --link: #0b6e57; --rule: #dadce0;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111; --fg: #eee; --muted: #a8adb3; --link: #7fd4c1; --rule: #333; }
}
body { margin: 0; background: var(--bg); color: var(--fg);
       font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 48px; overflow-wrap: anywhere; }
h1 { font-size: 1.6rem; line-height: 1.3; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 1.75rem 0 .5rem; }
.meta, .lang { color: var(--muted); font-size: .9rem; margin: 0 0 1rem; }
a { color: var(--link); }
li { margin: .3rem 0; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 3rem 0 2rem; }