:root {
  color-scheme: light dark;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #20251f;
  background: #f7f7f2;
}
body {
  margin: 0;
  min-height: 100svh;
  display: grid;
  place-items: center;
}
main { padding: 2rem; max-width: 60rem; }
.eyebrow { color: #586452; letter-spacing: .08em; }
h1 { font-size: clamp(2.5rem, 8vw, 5rem); line-height: 1.1; letter-spacing: -.045em; }
@media (prefers-color-scheme: dark) {
  :root { color: #f0f2e9; background: #191d18; }
  .eyebrow { color: #aebda7; }
}