* { box-sizing: border-box; }
html { background: #000; color: #fff; color-scheme: dark; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; }
main {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 2rem 1.5rem;
}
h1 {
  margin: 0;
  max-width: 100%;
  font-size: clamp(3rem, 10vw, 9rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.055em;
  text-align: center;
}