body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #121212;
  color: #e0e0e0;
}
header {
  background: #1f1f1f;
  padding: 1rem;
  text-align: center;
}
.card {
  background: #1e1e1e;
  border-radius: 8px;
  padding: 1rem;
  margin: 1rem;
}
.comment {
  font-size: 0.9rem;
  color: #aaaaaa;
  margin-top: 0.5rem;
}