.books-library {
  padding: 40px 20px;
  background: #f5f5f5;
}

.library-container {
  max-width: 1200px;
  margin: 0 auto;
}

.library-header {
  text-align: center;
  margin-bottom: 40px;
  padding: 30px 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: relative;
}

.home-btn {
  position: absolute;
  top: 30px;
  left: 20px;
  padding: 10px 20px;
  background: #2975c1;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.home-btn:hover {
  background: #1e5a94;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(41, 117, 193, 0.3);
}

.library-header h2 {
  font-size: 36px;
  color: #2975c1;
  margin: 0 0 10px 0;
}

.library-header p {
  font-size: 16px;
  color: #666;
  margin: 0;
}

.search-section {
  margin-bottom: 30px;
}

.search-box {
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 15px 40px 15px 20px;
  font-size: 15px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  background: white;
  transition: all 0.3s ease;
}

.search-box input:focus {
  outline: none;
  border-color: #2975c1;
  box-shadow: 0 0 0 3px rgba(41, 117, 193, 0.1);
}

.search-box input::placeholder {
  color: #999;
}

.filter-section {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 30px;
  background: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.filter-btn {
  padding: 8px 18px;
  border: 2px solid #e0e0e0;
  background: white;
  color: #333;
  border-radius: 25px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  text-transform: capitalize;
  letter-spacing: 0.5px;
}

.filter-btn:hover {
  border-color: #2975c1;
  color: #2975c1;
  background: rgba(41, 117, 193, 0.05);
}

.filter-btn.active {
  background: #2975c1;
  color: white;
  border-color: #2975c1;
}

.books-count {
  margin-bottom: 20px;
  padding: 0 20px;
  font-size: 14px;
  color: #666;
}

.books-count p {
  margin: 0;
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
}

.book-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  cursor: pointer;  text-decoration: none;
  color: inherit;
  display: block;}

.book-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.book-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #2975c1 0%, #34495e 100%);
  position: relative;
  overflow: hidden;
}

.book-category {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(255, 255, 255, 0.9);
  color: #2975c1;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.book-card .book-category {
  position: relative;
  top: 0;
  left: 0;
  margin: 15px 20px 0 20px;
  display: inline-block;
}

.book-title {
  font-size: 18px;
  color: #222;
  margin: 12px 20px 8px 20px;
  line-height: 1.4;
}

.book-author {
  font-size: 14px;
  color: #2975c1;
  margin: 0 20px 10px 20px;
  font-weight: 600;
}

.book-description {
  font-size: 13px;
  color: #666;
  margin: 10px 20px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.book-published {
  font-size: 12px;
  color: #999;
  margin: 15px 20px 20px 20px;
  padding-top: 10px;
  border-top: 1px solid #e0e0e0;
}

@media (max-width: 768px) {
  .library-header h2 {
    font-size: 28px;
  }

  .filter-section {
    gap: 8px;
  }

  .filter-btn {
    padding: 6px 14px;
    font-size: 12px;
  }

  .books-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
  }

  .book-title {
    font-size: 16px;
    margin: 10px 15px 6px 15px;
  }

  .book-author {
    margin: 0 15px 8px 15px;
  }

  .book-description {
    margin: 8px 15px;
    font-size: 12px;
  }

  .book-published {
    margin: 12px 15px 15px 15px;
  }
}

@media (max-width: 480px) {
  .books-library {
    padding: 20px 10px;
  }

  .library-header h2 {
    font-size: 22px;
  }

  .search-box input {
    padding: 12px 15px;
    font-size: 13px;
  }

  .filter-section {
    padding: 15px;
    gap: 6px;
  }

  .filter-btn {
    padding: 5px 10px;
    font-size: 11px;
  }

  .books-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .book-image {
    height: 180px;
  }

  .book-title {
    font-size: 15px;
    margin: 10px 12px 6px 12px;
  }

  .book-author {
    margin: 0 12px 8px 12px;
  }

  .book-description {
    margin: 8px 12px;
  }

  .book-published {
    margin: 12px 12px 12px 12px;
  }
}