body {
  font-family: Arial, sans-serif;
  background: #fdfdfd;
  color: #222;
  text-align: center;
  margin: 0;
  padding: 0;
}
.container {
  max-width: 800px;
  margin: auto;
  padding: 2rem;
}
.cover {
  width: 300px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  margin: 1rem 0;
}
.button {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: #ff6600;
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  border-radius: 8px;
}
footer {
  margin-top: 2rem;
  font-size: 0.9rem;
  color: #666;
}