html,body {
  inline-size: 100vi;
  min-block-size: 100vb;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: -apple-system, BlinkMacSystemFont, Avenir Next, Avenir, Segoe UI, Helvetica Neue, Helvetica, Cantarell, Ubuntu, Roboto, Noto, Arial, sans-serif;
  color: #f2f2f2;
  background: repeating-linear-gradient(
    45deg,
    #f0c530 0,
    #f0c530 10rem,
    #0a0a0a 10rem,
    #0a0a0a 20rem
  );
  backdrop-filter: saturate(50%);
}

main {
  flex-grow: 1;
  inline-size: calc(100% - 5rem);
  margin: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: #3c3c3c;
  border-radius: 1rem;
}

h1 {
  text-transform: uppercase;
  font-size: 4rem;
  margin-block-end: 1rem;
  letter-spacing: 0.125rem;
}

p {
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.00125rem;
}