:root {
  --bg: #fbfaf6; --fg: #1c2331; --muted: #566074; --line: #dfdbd0; --link: #1d4f91; --card: #ffffff;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11151c; --fg: #e6e9f0; --muted: #9aa4b8; --line: #2a3242; --link: #8bb6ff; --card: #171c26; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 1.0625rem/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
header.site, main, footer.site { width: 100%; max-width: 46rem; margin: 0 auto; padding-left: 16px; padding-right: 16px; }
header.site { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .5rem 1.5rem; padding-top: 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; font-size: 1.15rem; letter-spacing: .01em; color: var(--fg); text-decoration: none; }
nav a { margin-right: 1.1rem; }
nav a:last-child { margin-right: 0; }
a { color: var(--link); text-underline-offset: 2px; }
a:focus-visible { outline: 3px solid var(--link); outline-offset: 2px; border-radius: 2px; }
main { padding-top: 2rem; padding-bottom: 3rem; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 0 0 .4rem; }
h2 { font-size: 1.2rem; line-height: 1.3; margin: 2rem 0 .4rem; }
.meta { color: var(--muted); margin: 0 0 1.5rem; }
p, ul, ol { margin: 0 0 1rem; }
li { margin-bottom: .35rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.25rem; }
.card ul { margin: 0; padding-left: 1.2rem; }
footer.site { border-top: 1px solid var(--line); padding-top: 1.25rem; padding-bottom: 2rem; color: var(--muted); font-size: .9rem; }
footer.site p { margin: 0 0 .25rem; }