:root {
  color-scheme: light dark;
  --ink: #263238;
  --muted: #5f6f66;
  --ground: #f5faec;
  --accent: #2f8a3a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eef5ea;
    --muted: #9db3a3;
    --ground: #1c211e;
    --accent: #66d26d;
  }
}
body {
  margin: 0;
  padding-inline: 20px;
  background: var(--ground);
  color: var(--ink);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main {
  max-width: 44rem;
  margin: 0 auto;
  padding-block: 40px 64px;
}
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 4px; }
h2 { font-size: 1.25rem; margin: 2.2em 0 0.4em; }
h3 { font-size: 1.05rem; margin: 1.6em 0 0.3em; }
a { color: var(--accent); }
.meta, .crumb { color: var(--muted); font-size: 0.9rem; margin: 0 0 1.5em; }
li { margin-bottom: 0.35em; }