:root {
  color-scheme: dark;
  font-family: Arial, Helvetica, sans-serif;
  color: #f9fafb;
  background: #111827;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 2rem 1.5rem;
}

main {
  width: 100%;
  max-width: 56rem;
  text-align: center;
}

h1 {
  margin: 0 0 1.75rem;
  font-size: clamp(2.5rem, 5vw, 3.125rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.025em;
}

p {
  margin: 0;
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.6;
}