/* تنسيقات خاصة بصفحة الكتب */

/* قسم العنوان والبحث */
.books-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-2xl);
}

.books-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.books-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.books-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

/* شريط البحث */
.search-section {
    max-width: 600px;
    margin: 0 auto;
}

.search-bar {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    padding-left: 60px;
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    background: white;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.search-btn {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.search-btn:hover {
    background: rgba(108, 52, 131, 0.1);
}

/* الفلاتر المتقدمة */
.advanced-filters {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
}

.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-lg);
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 140px;
    backdrop-filter: blur(10px);
}

.filter-select:focus {
    outline: none;
    border-color: white;
    background: white;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.filter-select:hover {
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-1px);
    box-shadow: 0 2px 10px rgba(255, 255, 255, 0.2);
}

.filter-apply-btn {
    padding: var(--spacing-sm) var(--spacing-xl);
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
    position: relative;
    overflow: hidden;
}

.filter-apply-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.4);
    background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
}

.filter-apply-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(34, 197, 94, 0.3);
}

.filter-apply-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.filter-apply-btn:hover::before {
    left: 100%;
}

/* الفلاتر السريعة */
.quick-filters {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    border-color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.filter-btn.active {
    background: white;
    color: var(--primary-color);
    border-color: white;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.4);
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.filter-btn:hover::before {
    left: 100%;
}

/* تخطيط الكتب */
.books-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

/* الفلاتر الجانبية */
.filters-sidebar {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: calc(80px + var(--spacing-lg));
    max-height: calc(100vh - 120px);
    overflow-y: auto;
}

.filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.filters-header h3 {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.clear-filters {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--font-size-sm);
    text-decoration: underline;
    transition: var(--transition);
}

.clear-filters:hover {
    color: var(--primary-color);
}

.filter-group {
    margin-bottom: var(--spacing-xl);
}

.filter-group h4 {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.filter-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.filter-option:hover {
    background: var(--bg-secondary);
}

.filter-option input {
    margin: 0;
}

.filter-option span {
    flex: 1;
    font-size: var(--font-size-sm);
}

.filter-option .count {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    flex: none;
}

.stars {
    color: #ffd700;
    font-size: var(--font-size-sm);
}

/* منطقة عرض الكتب */
.books-content {
    min-height: 600px;
}

.books-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.results-info {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.results-info strong {
    color: var(--primary-color);
    font-weight: 600;
}

.sort-options {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sort-options label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.sort-options select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
}

.view-options {
    display: flex;
    gap: var(--spacing-xs);
}

.view-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.view-btn:hover,
.view-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* شبكة الكتب */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.book-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

.book-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.book-cover {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.book-cover img.default-book-cover {
    object-fit: contain;
    background-color: #f8f9fa;
}

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

.book-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.7));
    opacity: 0;
    transition: var(--transition);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-lg);
}

.book-card:hover .book-overlay {
    opacity: 1;
}

.book-actions {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 2;
}

.action-btns {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.action-btns:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.download-btn {
    background: rgba(34, 197, 94, 0.9);
    color: white;
}

.download-btn:hover {
    background: rgb(34, 197, 94);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.favorite-btn {
    background: rgba(239, 68, 68, 0.9);
    color: white;
}

.favorite-btn:hover,
.favorite-btn.active {
    background: rgb(239, 68, 68);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}



.book-info {
    padding: var(--spacing-lg);
}

.book-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-author {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.book-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.rating-stars {
    color: #ffd700;
    font-size: var(--font-size-sm);
}

.rating-count {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.book-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(108, 52, 131, 0.1);
    color: var(--primary-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.book-subject {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

/* عرض القائمة */
.books-grid.list-view {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.books-grid.list-view .book-card {
    display: flex;
    height: 200px;
}

.books-grid.list-view .book-cover {
    width: 150px;
    height: 100%;
    flex-shrink: 0;
}

.books-grid.list-view .book-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.books-grid.list-view .book-overlay {
    display: none;
}

/* التنقل بين الصفحات */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-2xl);
}

.pagination-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-size: var(--font-size-sm);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-numbers {
    display: flex;
    gap: var(--spacing-xs);
}

.pagination-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: var(--font-size-sm);
}

.pagination-number:hover,
.pagination-number.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-dots {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-sm);
    color: var(--text-secondary);
}

/* الاستجابة للشاشات */
@media (max-width: 1024px) {
    .books-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .filters-sidebar {
        position: static;
        max-height: none;
        order: 2;
    }
    
    .books-content {
        order: 1;
    }
}

/* رسالة عدم وجود كتب */
.no-books {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin: var(--spacing-xl) auto;
    max-width: 500px;
    width: 100%;
    animation: fadeIn 0.5s ease-in-out;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.no-books img {
    width: 180px;
    height: auto;
    margin-bottom: var(--spacing-xl);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.no-books h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.no-books p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
    max-width: 400px;
}

.no-books .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 2px 10px rgba(108, 52, 131, 0.2);
}

.no-books .btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(108, 52, 131, 0.3);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .books-hero {
        padding: var(--spacing-xl) 0;
    }
    
    .books-title {
        font-size: var(--font-size-2xl);
    }
    
    .quick-filters {
        gap: var(--spacing-xs);
    }
    
    .filter-btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .books-header {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }
    
    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .filters-sidebar {
        padding: var(--spacing-lg);
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .pagination-btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .no-books {
        padding: var(--spacing-xl);
        margin: var(--spacing-lg) auto;
    }
    
    .no-books img {
        width: 150px;
    }
}

@media (max-width: 480px) {
    .search-input {
        padding-left: 50px;
    }
    
    .books-grid {
        grid-template-columns: 1fr;
    }
    
    .books-grid.list-view .book-card {
        flex-direction: column;
        height: auto;
    }
    
    .books-grid.list-view .book-cover {
        width: 100%;
        height: 200px;
    }
    
    .pagination-numbers {
        display: none;
    }
    
    .no-books {
        padding: var(--spacing-lg);
    }
    
    .no-books h3 {
        font-size: var(--font-size-xl);
    }
    
    .no-books p {
        font-size: var(--font-size-base);
    }
}