:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #16181d;
  --muted: #5c6270;
  --line: #e4e6ec;
  --accent: #d8385a;
  --surface: #f7f8fa;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101216;
    --fg: #edeef2;
    --muted: #9aa1b1;
    --line: #262a33;
    --accent: #ff5c7c;
    --surface: #171a21;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 40px 20px 72px; }
header.site { border-bottom: 1px solid var(--line); }
header.site .wrap { padding: 20px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { font-weight: 700; letter-spacing: -0.02em; font-size: 18px; text-decoration: none; color: var(--fg); }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 16px; font-size: 14px; }
nav a:hover { color: var(--fg); }
h1 { font-size: 30px; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 34px 0 10px; letter-spacing: -0.01em; }
h3 { font-size: 16px; margin: 22px 0 6px; }
p, li { color: var(--fg); }
.lede { color: var(--muted); margin: 0 0 24px; }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 32px; }
ul { padding-left: 20px; }
li { margin: 6px 0; }
a { color: var(--accent); }
table { width: 100%; border-collapse: collapse; margin: 12px 0 20px; font-size: 15px; display: block; overflow-x: auto; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; margin: 24px 0; }
.card p:last-child { margin-bottom: 0; }
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer.site .wrap { padding: 24px 20px; display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; }
footer.site a { color: var(--muted); text-decoration: none; }
footer.site a:hover { color: var(--fg); }