/* استایل‌های پیشرفته افزونه کتابخانه دیجیتال */

/* متغیرهای CSS */
:root {
    --dbm-primary: #3B82F6;
    --dbm-primary-dark: #2563EB;
    --dbm-primary-light: #60A5FA;
    --dbm-success: #10B981;
    --dbm-warning: #F59E0B;
    --dbm-danger: #EF4444;
    --dbm-purple: #8B5CF6;
    --dbm-pink: #EC4899;
    --dbm-gray-50: #F9FAFB;
    --dbm-gray-100: #F3F4F6;
    --dbm-gray-200: #E5E7EB;
    --dbm-gray-300: #D1D5DB;
    --dbm-gray-400: #9CA3AF;
    --dbm-gray-500: #6B7280;
    --dbm-gray-600: #4B5563;
    --dbm-gray-700: #374151;
    --dbm-gray-800: #1F2937;
    --dbm-gray-900: #111827;
    --dbm-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --dbm-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --dbm-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --dbm-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --dbm-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --dbm-radius-sm: 6px;
    --dbm-radius: 8px;
    --dbm-radius-lg: 12px;
    --dbm-radius-xl: 16px;
    --dbm-transition: all 0.2s ease;
}

/* کانتینر اصلی */
.dbm-books-container,
.dbm-categories-container {
    margin: 32px 0;
}

/* شبکه کتاب‌ها */
.dbm-books-grid {
    display: grid;
    gap: 24px;
    margin-top: 24px;
    grid-template-columns: repeat(3, 1fr);
}

/* کلاس‌های ستون‌بندی */
.dbm-columns-2 { grid-template-columns: repeat(2, 1fr) !important; }
.dbm-columns-3 { grid-template-columns: repeat(3, 1fr) !important; }
.dbm-columns-4 { grid-template-columns: repeat(4, 1fr) !important; }

/* رسپانسیو برای مانیتورهای بزرگ */
@media (min-width: 1400px) {
    .dbm-columns-4 { grid-template-columns: repeat(4, 1fr) !important; }
    .dbm-columns-3 { grid-template-columns: repeat(3, 1fr) !important; }
    .dbm-columns-2 { grid-template-columns: repeat(2, 1fr) !important; }
}

@media (max-width: 1200px) {
    .dbm-columns-4 { grid-template-columns: repeat(3, 1fr) !important; }
}

@media (max-width: 992px) {
    .dbm-columns-4 { grid-template-columns: repeat(2, 1fr) !important; }
    .dbm-columns-3 { grid-template-columns: repeat(2, 1fr) !important; }
}

@media (max-width: 640px) {
    .dbm-columns-4,
    .dbm-columns-3,
    .dbm-columns-2 { grid-template-columns: 1fr !important; }
}

/* کارت کتاب */
.dbm-book-card {
    background: #FFFFFF;
    border: 1px solid var(--dbm-gray-200);
    border-radius: var(--dbm-radius-lg);
    overflow: hidden;
    transition: var(--dbm-transition);
    box-shadow: var(--dbm-shadow-sm);
    display: flex;
    flex-direction: column;
}

.dbm-book-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--dbm-shadow-lg);
    border-color: var(--dbm-primary-light);
}

.dbm-book-featured {
    border: 2px solid var(--dbm-warning);
}

.dbm-book-featured::before {
    content: '⭐';
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 20px;
    z-index: 10;
}

/* تصویر کتاب */
.dbm-book-image {
    height: 200px;
    overflow: hidden;
    position: relative;
    background: var(--dbm-gray-100);
}

.dbm-book-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.dbm-book-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dbm-gray-100);
}

.dbm-placeholder-icon {
    font-size: 64px;
    opacity: 0.5;
}

/* نشان کتاب ویژه */
.dbm-badge-featured {
    position: absolute;
    top: 12px;
    left: 12px;
    background: linear-gradient(135deg, var(--dbm-warning), #F97316);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    box-shadow: var(--dbm-shadow-md);
}

/* محتوای کتاب */
.dbm-book-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* دسته‌بندی */
.dbm-book-category {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 12px;
    align-self: flex-start;
}

/* عنوان کتاب */
.dbm-book-title {
    font-size: 1.1em;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: var(--dbm-gray-900);
    line-height: 1.4;
}

.dbm-book-title a {
    color: inherit;
    text-decoration: none;
    transition: var(--dbm-transition);
}

.dbm-book-title a:hover {
    color: var(--dbm-primary);
}

/* نویسنده */
.dbm-book-author {
    font-size: 0.9em;
    color: var(--dbm-gray-500);
    margin: 0 0 12px 0;
}

/* توضیحات */
.dbm-book-description {
    color: var(--dbm-gray-600);
    font-size: 0.9em;
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* متادیتا */
.dbm-book-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
    padding-top: auto;
}

.dbm-book-meta span {
    font-size: 0.85em;
    color: var(--dbm-gray-500);
    display: flex;
    align-items: center;
    gap: 4px;
}

.dbm-reading-time::before { content: '⏱️'; }
.dbm-pages-count::before { content: '📖'; }
.dbm-view-count::before { content: '👁️'; }

/* دکمه‌های عملیاتی */
.dbm-book-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--dbm-gray-100);
}

.dbm-download-btn,
.dbm-view-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 16px;
    border-radius: var(--dbm-radius);
    font-size: 0.9em;
    font-weight: 500;
    text-decoration: none;
    transition: var(--dbm-transition);
    cursor: pointer;
    border: none;
}

.dbm-download-btn {
    background: var(--dbm-primary);
    color: white;
}

.dbm-download-btn:hover {
    background: var(--dbm-primary-dark);
    color: white;
    text-decoration: none;
}

/* پلیر ویدیو */
.dbm-video-player {
    width: 100%;
    border-radius: var(--dbm-radius);
    overflow: hidden;
    background: #000;
}

.dbm-video-element {
    width: 100%;
    max-height: 200px;
    display: block;
}

.dbm-view-btn {
    background: transparent;
    color: var(--dbm-primary);
    border: 1px solid var(--dbm-primary);
}

.dbm-view-btn:hover {
    background: var(--dbm-primary);
    color: white;
    text-decoration: none;
}

/* شبکه دسته‌بندی‌ها */
.dbm-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.dbm-categories-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 24px;
}

/* کارت دسته‌بندی */
.dbm-category-card {
    background: #FFFFFF;
    border: 1px solid var(--dbm-gray-200);
    border-radius: var(--dbm-radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--dbm-transition);
    box-shadow: var(--dbm-shadow-sm);
}

.dbm-category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--dbm-shadow-lg);
    border-color: var(--dbm-success);
}

.dbm-category-card.active {
    border-color: var(--dbm-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.dbm-category-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 28px;
}

.dbm-category-title {
    font-size: 1.2em;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: var(--dbm-gray-900);
}

.dbm-category-description {
    color: var(--dbm-gray-500);
    font-size: 0.9em;
    line-height: 1.5;
    margin-bottom: 16px;
}

.dbm-category-meta {
    margin-bottom: 20px;
}

.dbm-books-count {
    background: rgba(16, 185, 129, 0.1);
    color: var(--dbm-success);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 500;
}

.dbm-category-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    color: var(--dbm-primary);
    padding: 10px 20px;
    border: 1px solid var(--dbm-primary);
    border-radius: var(--dbm-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--dbm-transition);
}

.dbm-category-link:hover {
    background: var(--dbm-primary);
    color: white;
    text-decoration: none;
}

/* فرم جستجو */
.dbm-search-box {
    margin-bottom: 24px;
}

.dbm-quick-search {
    max-width: 600px;
    margin: 0 auto;
}

.dbm-search-fields {
    display: flex;
    gap: 8px;
    background: #FFFFFF;
    border: 2px solid var(--dbm-gray-200);
    border-radius: var(--dbm-radius-lg);
    padding: 4px;
    transition: var(--dbm-transition);
}

.dbm-search-fields:focus-within {
    border-color: var(--dbm-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.dbm-search-field {
    flex: 1;
    border: none;
    padding: 12px 16px;
    font-size: 1em;
    outline: none;
    background: transparent;
}

.dbm-search-submit {
    background: var(--dbm-primary);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--dbm-radius);
    cursor: pointer;
    font-size: 1.1em;
    transition: var(--dbm-transition);
}

.dbm-search-submit:hover {
    background: var(--dbm-primary-dark);
}

/* Breadcrumbs */
.dbm-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 0;
    font-size: 0.9em;
    color: var(--dbm-gray-500);
    margin-bottom: 24px;
}

.dbm-breadcrumbs a {
    color: var(--dbm-primary);
    text-decoration: none;
    transition: var(--dbm-transition);
}

.dbm-breadcrumbs a:hover {
    color: var(--dbm-primary-dark);
}

.dbm-breadcrumb-sep {
    color: var(--dbm-gray-300);
}

.dbm-breadcrumb-current {
    color: var(--dbm-gray-700);
    font-weight: 500;
}

/* فیلترهای فعال */
.dbm-active-filters {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.dbm-filter-label {
    font-size: 0.9em;
    color: var(--dbm-gray-600);
}

.dbm-filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.9em;
    color: white;
}

.dbm-filter-remove {
    color: white;
    text-decoration: none;
    font-size: 1.2em;
    line-height: 1;
    opacity: 0.8;
    transition: var(--dbm-transition);
}

.dbm-filter-remove:hover {
    opacity: 1;
}

/* صفحه‌بندی */
.dbm-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
    padding: 24px 0;
}

.dbm-pagination-numbers {
    display: flex;
    align-items: center;
    gap: 4px;
}

.dbm-pagination-num {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: var(--dbm-radius);
    background: #FFFFFF;
    color: var(--dbm-gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: var(--dbm-transition);
    border: 1px solid var(--dbm-gray-200);
}

.dbm-pagination-num:hover {
    border-color: var(--dbm-primary);
    color: var(--dbm-primary);
}

.dbm-pagination-current {
    background: var(--dbm-primary);
    border-color: var(--dbm-primary);
    color: white;
}

.dbm-pagination-dots {
    padding: 0 8px;
    color: var(--dbm-gray-400);
}

.dbm-pagination-btn {
    padding: 10px 20px;
    border-radius: var(--dbm-radius);
    background: #FFFFFF;
    color: var(--dbm-gray-700);
    text-decoration: none;
    font-weight: 500;
    border: 1px solid var(--dbm-gray-200);
    transition: var(--dbm-transition);
}

.dbm-pagination-btn:hover {
    border-color: var(--dbm-primary);
    color: var(--dbm-primary);
}

/* پیام‌های خالی */
.dbm-no-books,
.dbm-no-categories {
    text-align: center;
    padding: 60px 40px;
    background: var(--dbm-gray-50);
    border: 2px dashed var(--dbm-gray-300);
    border-radius: var(--dbm-radius-lg);
    color: var(--dbm-gray-500);
}

.dbm-no-books-icon,
.dbm-no-categories::before {
    font-size: 4em;
    display: block;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* لودینگ */
.dbm-loading {
    text-align: center;
    padding: 40px;
    color: var(--dbm-primary);
}

.dbm-loading-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 40px;
    grid-column: 1 / -1;
}

.dbm-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--dbm-gray-200);
    border-top-color: var(--dbm-primary);
    border-radius: 50%;
    animation: dbm-spin 1s linear infinite;
}

@keyframes dbm-spin {
    to { transform: rotate(360deg); }
}

/* خطا */
.dbm-error-message,
.dbm-error {
    text-align: center;
    padding: 40px;
    background: #FEF2F2;
    border: 1px solid #FECACA;
    border-radius: var(--dbm-radius-lg);
    color: var(--dbm-danger);
}

/* کتاب‌های ویژه */
.dbm-featured-books {
    margin-top: 32px;
}

.dbm-section-title {
    font-size: 1.5em;
    font-weight: 600;
    color: var(--dbm-gray-900);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--dbm-gray-200);
}

/* کانتینر جستجو */
.dbm-search-container {
    margin-bottom: 32px;
}

.dbm-search-results {
    margin-top: 24px;
}

.dbm-search-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.dbm-no-results {
    text-align: center;
    padding: 40px;
    background: var(--dbm-gray-50);
    border-radius: var(--dbm-radius-lg);
    color: var(--dbm-gray-500);
}

/* اعلان‌ها */
.dbm-notification {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 16px 24px;
    border-radius: var(--dbm-radius);
    color: white;
    font-weight: 500;
    z-index: 9999;
    box-shadow: var(--dbm-shadow-xl);
}

.dbm-notification-success { background: var(--dbm-success); }
.dbm-notification-error { background: var(--dbm-danger); }
.dbm-notification-warning { background: var(--dbm-warning); }
.dbm-notification-info { background: var(--dbm-primary); }

/* تولتیپ */
.dbm-tooltip {
    position: absolute;
    background: var(--dbm-gray-800);
    color: white;
    padding: 8px 12px;
    border-radius: var(--dbm-radius-sm);
    font-size: 12px;
    z-index: 9999;
    pointer-events: none;
    box-shadow: var(--dbm-shadow-md);
}

/* انیمیشن‌های hover */
.hover-active {
    transform: translateY(-4px);
}

/* تصویر لود شده */
.dbm-image-loaded {
    animation: dbm-fadeIn 0.5s ease;
}

@keyframes dbm-fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* کتابخانه بزرگ */
.dbm-books-grid.dbm-loading .dbm-book-card {
    opacity: 0.5;
    pointer-events: none;
}

/* Responsive */
@media (max-width: 768px) {
    .dbm-books-grid {
        grid-template-columns: 1fr;
    }
    
    .dbm-category-card {
        padding: 20px;
    }
    
    .dbm-book-actions {
        flex-direction: column;
    }
    
    .dbm-pagination {
        flex-wrap: wrap;
    }
    
    .dbm-pagination-numbers {
        order: 1;
        width: 100%;
        justify-content: center;
        margin-top: 12px;
    }
}

/* شبکه دسته‌بندی‌ها */
.dbm-categories-container {
    position: relative;
}

.dbm-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

/* لیست دسته‌بندی‌ها */
.dbm-categories-list .dbm-category-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    text-align: right;
    gap: 20px;
    padding: 20px;
}

.dbm-categories-list .dbm-category-icon {
    margin: 0;
    flex-shrink: 0;
}

.dbm-categories-list .dbm-category-content {
    flex: 1;
}

.dbm-categories-list .dbm-category-title {
    margin-bottom: 4px;
}

.dbm-categories-list .dbm-category-link {
    margin-top: 0;
    flex-shrink: 0;
}

/* فوتر کارت */
.dbm-book-card .dbm-book-content {
    padding: 20px;
}

/* لینک‌های داخلی */
.dbm-books-container a,
.dbm-categories-container a {
    transition: var(--dbm-transition);
}