* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #f6f7f9;
  color: #1d2433;
  line-height: 1.6;
}
main { max-width: 720px; margin: 0 auto; padding: 48px 20px 64px; }
nav { display: flex; gap: 16px; align-items: baseline; margin-bottom: 32px; }
nav .brand { font-weight: 700; font-size: 1.25rem; margin-right: auto; }
nav a { color: #5b6475; text-decoration: none; }
nav a[aria-current="page"] { color: #1d2433; font-weight: 600; }
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: #fff4ed;
  color: #c2410c;
  font-weight: 600;
  font-size: 0.875rem;
}
h1 { font-size: 1.9rem; line-height: 1.25; margin: 16px 0 8px; }
h2 { font-size: 1.15rem; margin: 0 0 8px; }
.lead { font-size: 1.1rem; color: #5b6475; margin: 0 0 32px; }
section {
  background: #fff;
  border: 1px solid #e3e6eb;
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 16px;
}
ul { margin: 0; padding-left: 20px; }
li + li { margin-top: 4px; }
p { margin: 0 0 8px; }
p:last-child { margin-bottom: 0; }
a { color: #1d4ed8; }
.updated { color: #5b6475; font-size: 0.9rem; margin-top: 32px; }