body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4;
  color: #333;
}

header {
  background: #0d47a1;
  color: #fff;
  padding: 2rem;
  text-align: center;
}

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

header p {
  font-size: 1.2rem;
}

.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background: #2196f3;
  color: #fff;
  text-decoration: none;
  border-radius: 5px;
}

section {
  padding: 2rem;
  background: #fff;
  margin: 1rem;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

footer {
  text-align: center;
  padding: 1rem;
  background: #0d47a1;
  color: white;
}