body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px;
  line-height: 1.6;
  color: #1a1a1a;
}
@media (prefers-color-scheme: dark) {
  body { background: #0b0b0b; color: #eaeaea; }
  a { color: #6ab0ff; }
  table, th, td { border-color: #333; }
}
h1, h2 { line-height: 1.25; }
h1 { font-size: 28px; margin: 0 0 16px; }
h2 { font-size: 20px; margin: 32px 0 12px; padding-top: 8px; }
table { border-collapse: collapse; width: 100%; }
th, td { border: 1px solid #ddd; padding: 6px 10px; text-align: left; }
blockquote { color: #666; border-left: 3px solid #ccc; margin: 0; padding-left: 12px; }
hr { border: 0; border-top: 1px solid #ddd; margin: 32px 0; }
a { color: #0a84ff; }