:root {
  color-scheme: light;
  --ink: #111;
  --muted: #5c5c5c;
  --line: #e6e6e6;
  --bg: #f7f5f2;
  --accent: #1a5cff;
  --max: 720px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

header.site {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 16px 20px;
}

header.site nav {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
}

header.site a.brand {
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  margin-right: auto;
}

header.site a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

header.site a:hover,
header.site a.active {
  color: var(--accent);
}

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 20px 64px;
}

h1 {
  font-size: 36px;
  line-height: 1.1;
  margin: 0 0 12px;
}

h2 {
  font-size: 22px;
  margin: 32px 0 12px;
}

p, li { color: var(--ink); }

.lead {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 24px;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  margin: 16px 0;
}

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
}

pre {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  overflow-x: auto;
}

a.button {
  display: inline-block;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  padding: 12px 16px;
  border-radius: 12px;
  margin-top: 8px;
}

ul.checklist li { margin: 8px 0; }

footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px 48px;
  color: var(--muted);
  font-size: 13px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 15px;
}

th, td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #fff;
  font-weight: 600;
}

tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.6);
}