.book-page {
  padding: 2rem 0;
}

.book-title {
  color: var(--bs-primary);
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 2rem;
}

.book-cover {
  width: 100%;
  max-width: 280px;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transition: transform 0.3s ease;
}

.book-cover:hover {
  transform: scale(1.05);
}

.book-section {
  margin-bottom: 2rem;
}

.book-section h2 {
  color: var(--secondary-color);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-color);
}

.book-section p {
  color: #555;
  line-height: 1.7;
  font-size: 1rem;
}

.book-metadata {
  background-color: #f8f9fa;
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
}

.metadata-item {
  display: flex;
  align-items: center;
  margin-bottom: 0.75rem;
}

.metadata-item:last-child {
  margin-bottom: 0;
}

.metadata-icon {
  width: 24px;
  margin-right: 0.75rem;
  color: var(--primary-color);
}

.video-container {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.target-audience-list {
  list-style: none;
  padding-left: 0;
}

.target-audience-list li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.target-audience-list li:before {
  content: "✓";
  color: var(--bs-primary);
  font-weight: bold;
  position: absolute;
  left: 0;
}

@media (max-width: 768px) {
  .book-title {
    font-size: 1.5rem;
  }
}

@media (max-width: 768px) {
  .book-cover {
    max-width: 200px;
    margin: 0 auto;
    display: block;
  }
}

@media (max-width: 768px) {
  .book-metadata {
    margin-top: 2rem;
  }
}

.amazon-btn {
  background: linear-gradient(to bottom, #f7dfa5, #f0c14b);
  border: 1px solid #a88734;
  border-radius: 8px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  color: #111;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 2px 5px 0 rgba(213,217,217,.5);
  transition: all 0.1s;
}

.amazon-btn:hover {
  background: linear-gradient(to bottom, #f5d78e, #edb932);
  border-color: #9c7e31;
  transform: translateY(-1px);
  box-shadow: 0 3px 8px 0 rgba(213,217,217,.6);
}

.amazon-btn:active {
  transform: translateY(0);
  box-shadow: 0 1px 3px rgba(0,0,0,.2) inset;
}

.amazon-btn img {
  height: 18px;
  width: auto;
}