:root {
  --bg: #f4f3ef;
  --text: #141414;
  --muted: #66635c;
  --accent: #1f3a5f;
  --rule: #e6b422;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121212; --text: #f4f3ef; --muted: #a29f97; --accent: #7fa0cc; }
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 1.05rem/1.6 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 1rem;
}
main, footer { width: 100%; max-width: 34rem; margin: 0 auto; }
main { border-top: 6px solid var(--rule); padding-top: 1.5rem; }
h1 { margin: 0 0 .5rem; font-size: 2.2rem; font-weight: 700; letter-spacing: .01em; }
.lead { margin: 0 0 1.2rem; font-size: 1.2rem; }
p { margin: 0 0 1rem; }
a { color: var(--accent); }
footer { margin-top: 3rem; color: var(--muted); font-size: .85rem; }
h2 { margin: 1.6rem 0 .4rem; font-size: 1.05rem; font-weight: 700; }