body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #8b8b8b;
  color: #111;
  text-align: center;
}

header {
  padding: 60px 20px;
}

h1 {
  margin: 0;
  font-size: 2.5rem;
}

main {
  max-width: 600px;
  margin: auto;
  padding: 20px;
}

.card {
  background: white;
  padding: 20px;
  margin: 20px 0;
  border-radius: 10px;
}

.btn {
  display: inline-block;
  padding: 10px 20px;
  background: black;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}

.links a {
  display: block;
  margin: 5px 0;
  text-decoration: none;
  color: black;
}

footer {
  padding: 20px;
  font-size: 0.9rem;
}