body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: system-ui, sans-serif;
  color: #172033;
  background: #f3f6fb;
}

main {
  width: min(640px, calc(100% - 48px));
  padding: 48px;
  border-radius: 24px;
  background: white;
  box-shadow: 0 18px 60px rgba(20, 32, 60, .12);
}