body {
  background: #f7f7f7;
}

.card {
  border-radius: 16px;
}

#quiz-container, #result {
  margin-top: 0;
}

button, .btn {
  font-size: 1rem;
}

.review-container {
  max-height: 400px;
  overflow-y: auto;
}

.review-item {
  transition: transform 0.2s;
}

.review-item:hover {
  transform: translateX(5px);
}