body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: url("images/background.jpg") no-repeat center center fixed;
  background-size: cover;
  color: #fff;
}

nav {
  background: rgba(0,0,0,0.6);
  padding: 1rem;
  text-align: center;
}

nav a {
  color: #fff;
  margin: 0 1rem;
  text-decoration: none;
  font-weight: bold;
}

.container {
  max-width: 800px;
  margin: 5% auto;
  background: rgba(0,0,0,0.5);
  padding: 2rem;
  border-radius: 8px;
}

footer {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #ccc;