.theme-demo {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.theme-card {
  padding: 1.5rem;
  border: 2px solid currentColor;
  border-radius: 0.5rem;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  background: rgba(255,255,255,0.9);
  transition: all 0.3s ease;
}
.theme-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px currentColor;
}
.theme-card h4 {
  margin: 0 0 0.5rem 0;
  color: currentColor;
}
.theme-card p {
  margin: 0;
  color: #666;
  font-size: 0.9em;
}
.theme-primary { color: #3498db; }
.theme-success { color: #27ae60; }
.theme-warning { color: #f39c12; }