:root {
  --bg: #fbf8f3;
  --text: #1f1c18;
  --muted: #6b645b;
  --rule: #e4ddd2;
  --link: #3b5bdb;
  --card: #ffffff;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #14130f; --text: #ece7df; --muted: #a39b8f; --rule: #2e2b25; --link: #91a7ff; --card: #1c1a16; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
a { color: var(--link); }
header.site, main, footer.site { max-width: 760px; margin: 0 auto; padding: 0 20px; }
header.site { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: baseline; justify-content: space-between; padding-top: 24px; padding-bottom: 8px; border-bottom: 1px solid var(--rule); }
header.site .brand { font-weight: 700; font-size: 20px; color: var(--text); text-decoration: none; letter-spacing: 0.02em; }
header.site nav { display: flex; flex-wrap: wrap; gap: 16px; font-size: 15px; }
main { padding-top: 24px; padding-bottom: 40px; }
h1 { font-size: 30px; line-height: 1.2; margin: 8px 0 16px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
h3 { font-size: 18px; margin: 24px 0 8px; }
p.lede { font-size: 20px; color: var(--muted); }
.table { overflow-x: auto; margin: 16px 0; border: 1px solid var(--rule); border-radius: 10px; background: var(--card); }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--rule); }
tr:last-child td { border-bottom: 0; }
th { font-weight: 600; }
blockquote { margin: 16px 0; padding: 4px 16px; border-left: 3px solid var(--rule); color: var(--muted); }
code { font-size: 0.9em; }
footer.site { padding-top: 16px; padding-bottom: 40px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 14px; }