body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f9fafb;
  color: #222;
}

header {
  background: #0f172a;
  color: white;
  text-align: center;
  padding: 40px 20px;
}

.content {
  max-width: 700px;
  margin: 40px auto;
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

a { color: #1e40af; }

button {
  background: #1e3a8a;
  color: white;
  padding: 10px 18px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background: #1e40af;
}

footer {
  text-align: center;
  padding: 20px;
  margin-top: 40px;
  color: #555;
}