:root { --bg: #ffffff; --fg: #1d1f23; --muted: #5b6270; --link: #1a56db; --rule: #e3e5e8; --code: #f3f4f6; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #121417; --fg: #e6e8eb; --muted: #9aa1ad; --link: #7aa7ff; --rule: #2a2e35; --code: #1d2026; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main, footer { max-width: 42rem; margin: 0 auto; padding: 0 16px; }
main { padding-top: 3rem; padding-bottom: 2rem; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 .75rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 .5rem; }
.lede { color: var(--muted); font-size: 1.05rem; }
a { color: var(--link); }
code { background: var(--code); padding: .1em .35em; border-radius: 4px; font-size: .88em; overflow-wrap: anywhere; }
ul { padding-left: 1.25rem; }
footer { border-top: 1px solid var(--rule); padding-top: 1rem; padding-bottom: 2rem; color: var(--muted); font-size: .95rem; }