:root { --bg: #ffffff; --ink: #16181d; --muted: #5b616e; --line: #e3e5ea; --accent: #c8102e; --card: #f6f7f9; }
@media (prefers-color-scheme: dark) { :root { --bg: #111317; --ink: #eceef2; --muted: #a3a9b6; --line: #2a2e37; --accent: #ff5a6e; --card: #1a1d23; } }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
header.top { border-bottom: 1px solid var(--line); }
header.top .in, main, footer .in { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.top .in { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 20px; padding-top: 16px; padding-bottom: 16px; }
.brand { font-weight: 800; letter-spacing: .02em; text-transform: uppercase; color: var(--ink); text-decoration: none; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
nav a:first-child { margin-left: 0; }
nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
main { padding-top: 40px; padding-bottom: 56px; }
h1 { font-size: 34px; line-height: 1.2; margin: 0 0 6px; }
.updated { color: var(--muted); font-size: 15px; margin: 0 0 28px; }
h2 { font-size: 21px; line-height: 1.3; margin: 38px 0 8px; scroll-margin-top: 16px; }
p, ul { margin: 0 0 14px; }
ul { padding-left: 22px; }
li { margin-bottom: 6px; }
a { color: var(--accent); }
.box { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; margin: 18px 0; }
.box p:last-child { margin-bottom: 0; }
.cards { display: grid; gap: 14px; margin-top: 24px; }
.cards a { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 18px; color: var(--ink); text-decoration: none; }
.cards a strong { display: block; font-size: 19px; margin-bottom: 2px; }
.cards a span { color: var(--muted); font-size: 15px; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .in { padding-top: 18px; padding-bottom: 28px; }