.book-details-header {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
}

.book-details-header img {
  width: 150px;
  height: 225px;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.book-info {
  flex: 1;
}

.recommend-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #999;
  padding: 8px;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.recommend-btn.active {
  color: #007ACC;
  background: rgba(0,122,204,0.1);
}

.book-review-section {
  margin-top: 20px;
}

#review-textarea {
  width: 100%;
  min-height: 150px;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  margin-bottom: 10px;
  font-family: inherit;
  resize: vertical;
}

#review-display {
  background: #f9f9f9;
  padding: 15px;
  border-radius: 4px;
  position: relative;
}

#edit-review-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  cursor: pointer;
  color: #666;
}