:root { color-scheme: light dark; }
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #1D3E52;
  background: #FDFBF7;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 40px 24px 80px; }
h1 { font-size: 2rem; margin: 0 0 4px; }
h2 { font-size: 1.15rem; margin: 40px 0 8px; }
.meta { color: #5A6871; font-size: 0.9rem; margin-bottom: 8px; }
p, li { color: #3a4a54; }
ul { padding-left: 1.2em; }
a { color: #4A9BD1; }
nav.crumbs { font-size: 0.9rem; margin-bottom: 24px; }
nav.crumbs a { margin-right: 16px; }
.callout {
  background: #F4EAE0; border-radius: 14px; padding: 16px 20px; margin: 24px 0;
}
hr { border: none; border-top: 1px solid #E4DACD; margin: 40px 0; }
@media (prefers-color-scheme: dark) {
  body { color: #E7EEF3; background: #0f1a22; }
  p, li { color: #c4d2da; }
  .meta { color: #8fa4b0; }
  a { color: #7cbce8; }
  .callout { background: #1a2a34; }
  hr { border-top-color: #24343f; }
}