:root {
  color-scheme: light dark;
  --bg: #f4f4f2;
  --text: #1c1c1a;
  --muted: #6b6b66;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121211;
    --text: #ececea;
    --muted: #8d8d87;
  }
}
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--bg);
  color: var(--text);
  font: 18px/1.5 system-ui, sans-serif;
}
main {
  padding: 24px 16px;
  text-align: center;
}
h1 {
  margin: 0;
  font-size: clamp(2.5rem, 10vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}
p {
  margin: 4px 0 0;
  color: var(--muted);
}