body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #0f172a;
  color: #e2e8f0;
}

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

section {
  padding: 30px;
  max-width: 800px;
  margin: auto;
}

h1, h2 {
  color: #60a5fa;
}

footer {
  text-align: center;
  padding: 20px;
  background: #1e293b;
  margin-top: 40px;
}