body {
  margin: 0;
  font-family: Arial;
  background: #0f172a;
  color: white;
}

header {
  text-align: center;
  padding: 40px;
  background: #1e293b;
}

section {
  padding: 30px;
  text-align: center;
}

h1, h2 {
  color: #38bdf8;
}

.card {
  background: #1e293b;
  margin: 20px;
  padding: 20px;
  border-radius: 10px;
}

a {
  display: inline-block;
  margin-top: 10px;
  padding: 10px 15px;
  background: #38bdf8;
  color: black;
  text-decoration: none;
  border-radius: 5px;
}