body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.5;
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem;
  background: #f5f5f5;
  color: #333;
}
h1 {
  color: #2c3e50;
  text-align: center;
  margin-bottom: 1rem;
}
.description {
  text-align: center;
  color: #666;
  margin-bottom: 1.5rem;
}
.book-list {
  list-style: none;
  padding: 0;
}
.book-item {
  margin-bottom: 0.75rem;
}
.book-link {
  display: block;
  text-decoration: none;
  color: #2c3e50;
  background: white;
  padding: 1rem;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  transition: transform 0.2s ease;
}
.book-link:hover {
  transform: translateY(-1px);
  color: #2c3e50;
}
.book-title {
  font-weight: 500;
  font-size: 1.1rem;
  margin: 0;
}
.author {
  color: #666;
  font-size: 0.85rem;
  margin-top: 0.25rem;
}