body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background: #fff;
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}
h1 { font-size: 1.75rem; line-height: 1.25; }
h2 { font-size: 1.25rem; margin-top: 2rem; }
a { color: #1a56c4; }
address { font-style: normal; }
@media (prefers-color-scheme: dark) {
  body { color: #e8e8e8; background: #141414; }
  a { color: #8ab4f8; }
}