:root { --ink: #111; --muted: #555; --rule: #ddd; --bg: #fff; }
@media (prefers-color-scheme: dark) {
  :root { --ink: #eee; --muted: #aaa; --rule: #333; --bg: #111; }
  .mark { filter: invert(1); }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
       font: 17px/1.6 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 56px 16px 40px; }
header { display: flex; align-items: center; gap: 18px; margin-bottom: 40px; }
header a { color: inherit; text-decoration: none; display: flex; align-items: center; gap: 18px; }
.mark { width: 64px; height: 64px; }
.name { font-size: 22px; letter-spacing: .28em; text-transform: uppercase; line-height: 1.2; }
.name small { display: block; font-size: 13px; letter-spacing: .3em; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 32px 0 6px; }
p, li { color: var(--ink); }
.muted { color: var(--muted); }
a { color: inherit; }
code { font-size: 14px; word-break: break-all; }
footer { border-top: 1px solid var(--rule); margin-top: 48px; padding-top: 16px; font-size: 14px; color: var(--muted); }