:root {
  color-scheme: light;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: #17313b;
  background: #f5faf9;
}

body {
  margin: 0;
  padding: 4rem 1.5rem;
  line-height: 1.7;
}

main {
  max-width: 42rem;
  margin: 0 auto;
}

.brand {
  color: #006d75;
  font-size: 1.25rem;
  font-weight: 700;
}

h1 {
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  line-height: 1.4;
}