:root {
  --bg: #fbfaf7; --fg: #1d1f24; --muted: #62666f; --line: #e3e0d8; --accent: #c8321f; --card: #ffffff;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0e1014; --fg: #e9e7e2; --muted: #9a9ea8; --line: #262a32; --accent: #ff5a43; --card: #15181e; color-scheme: dark; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding: 0 20px;
}
main { max-width: 720px; margin: 0 auto; padding-block: 48px 80px; }
header.site { max-width: 720px; margin: 0 auto; padding-block: 24px 0; display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
header.site a.brand { font-weight: 800; letter-spacing: .02em; color: var(--fg); text-decoration: none; }
header.site nav a { color: var(--muted); text-decoration: none; margin-left: 16px; font-size: 15px; }
h1 { font-size: clamp(30px, 6vw, 42px); line-height: 1.15; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 40px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p, li { color: var(--fg); }
.lede { color: var(--muted); font-size: 19px; margin-top: 0; }
.meta { color: var(--muted); font-size: 14px; }
a { color: var(--accent); }
ul { padding-left: 22px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 20px 22px; margin: 16px 0; }
.card h3 { margin-top: 0; }
.steps li { margin-bottom: 6px; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 10px 8px; }
th { color: var(--muted); font-weight: 600; }
footer { max-width: 720px; margin: 0 auto; padding-block: 24px 40px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }