* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: #f5f5f5;
  color: #222;
  font-family: Arial, sans-serif;
  text-align: center;
}

main {
  width: 100%;
  max-width: 40rem;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 8vw, 3.5rem);
  line-height: 1.1;
}

p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.5;
}