:root { color-scheme: light dark; }
body {
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  margin: 0 auto; max-width: 42rem; padding: 3rem 1.25rem 5rem;
}
h1 { font-size: 1.9rem; letter-spacing: -0.02em; margin-bottom: 0.25rem; }
h2 { font-size: 1.15rem; margin-top: 2.2rem; }
.updated { color: #777; font-size: 0.9rem; margin-top: 0; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.92em; }
nav { margin-bottom: 2rem; font-size: 0.95rem; }
nav a { margin-right: 1rem; }
li { margin: 0.35rem 0; }