:root { color-scheme: light dark; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background: #ffffff;
}
main { max-width: 42rem; margin: 0 auto; padding: 2rem 1.25rem 4rem; }
h1, h2, h3 { line-height: 1.25; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.25rem; margin-top: 2.2rem; }
a { color: #0a6c66; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { border: 1px solid #ddd; padding: 0.4rem 0.6rem; text-align: left; vertical-align: top; }
th { background: #f6f6f6; }
blockquote {
  margin: 1.2rem 0;
  padding: 0.25rem 1rem;
  border-left: 3px solid #0a6c66;
  color: #444444;
  background: #f8faf9;
}
code { background: #f0f0f0; padding: 0.1rem 0.3rem; border-radius: 4px; font-size: 0.9em; }
.tagline { font-size: 1.15rem; color: #555555; }
@media (prefers-color-scheme: dark) {
  body { color: #e8e8e8; background: #141414; }
  th { background: #222222; }
  th, td { border-color: #333333; }
  code { background: #262626; }
  blockquote { background: #1a2220; color: #bbbbbb; }
}