body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: #f7f7f7;
  color: #222;
  margin: 0;
  height: 100vh;
  display: grid;
  place-items: center;
}

main {
  text-align: center;
  padding: 2rem;
}

.lang {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.9rem;
}

.lang a {
  color: #0077cc;
  text-decoration: none;
}

.lang a:hover {
  text-decoration: underline;
}

h2 {
  font-weight: normal;
  color: #666;
  margin-top: 0.5rem;
}