body {
  font-family: Arial, sans-serif;
  background: #f4f7fb;
  margin: 0;
  padding: 50px 20px;
  color: #243247;
}

main {
  max-width: 600px;
  margin: auto;
  background: white;
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 8px 30px #0001;
}

h1 {
  color: #187d83;
}