:root { --bg: #ffffff; --fg: #1d1d1f; --muted: #5a5a60; --rule: #e3e3e8; --link: #0b57d0; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #141416; --fg: #ececf0; --muted: #a4a4ad; --rule: #2c2c31; --link: #8ab4f8; }
}
* { 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: 46rem; margin: 0 auto; padding: 2.5rem 1rem 4rem; }
h1 { font-size: 1.8rem; line-height: 1.25; margin: 0 0 .25rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 .5rem; }
p, li { color: var(--fg); }
.lede { color: var(--muted); margin-top: 0; }
code { font: .92em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; overflow-wrap: anywhere; }
a { color: var(--link); }
ul { padding-left: 1.25rem; }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: .9rem; }