/* Gallery Page Styles */

.gallery-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: var(--bg-primary);
    overflow: hidden;
}

/* Header */
.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 16px;
    flex-shrink: 0;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.gallery-header .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0;
}

.gallery-header .logo i {
    font-size: 1.6rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background-color: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 8px;
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-link:hover {
    background-color: rgba(56, 189, 248, 0.2);
    border-color: var(--accent-color);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* Search Box */
.search-box {
    position: relative;
    width: 280px;
}

.search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.search-box input {
    width: 100%;
    padding: 10px 14px 10px 42px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.search-box input:focus {
    border-color: var(--accent-color);
}

.search-box input::placeholder {
    color: var(--text-secondary);
}

/* Filter Controls */
.filter-controls {
    display: flex;
    gap: 8px;
}

.filter-controls select {
    padding: 10px 14px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s ease;
}

.filter-controls select:focus {
    border-color: var(--accent-color);
}

.filter-controls select option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.btn-refresh {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-refresh:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

/* Stats Bar */
.stats-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 32px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.stats-bar .divider {
    opacity: 0.3;
}

/* PDF Grid Container */
.pdf-grid-container {
    flex: 1;
    padding: 24px 32px;
    overflow-y: auto;
    min-height: 0; /* Important for flex child to scroll */
}

.pdf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

/* PDF Card */
.pdf-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pdf-card:hover {
    border-color: var(--accent-color);
    background-color: rgba(56, 189, 248, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.pdf-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    border-radius: 12px;
    flex-shrink: 0;
}

.pdf-icon i {
    font-size: 1.5rem;
    color: white;
}

.pdf-info {
    flex: 1;
    min-width: 0;
}

.pdf-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 8px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pdf-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.pdf-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.pdf-meta i {
    font-size: 0.75rem;
    opacity: 0.7;
}

.pdf-actions {
    display: flex;
    gap: 8px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.pdf-card:hover .pdf-actions {
    opacity: 1;
}

.btn-view,
.btn-download-small {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn-view {
    background-color: rgba(56, 189, 248, 0.15);
    color: var(--accent-color);
}

.btn-view:hover {
    background-color: var(--accent-color);
    color: white;
}

.btn-download-small {
    background-color: rgba(16, 185, 129, 0.15);
    color: var(--success-color);
}

.btn-download-small:hover {
    background-color: var(--success-color);
    color: white;
}

/* Empty State */
.empty-state,
.error-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 64px 32px;
    text-align: center;
    color: var(--text-secondary);
}

.empty-state i,
.error-state i {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state h3,
.error-state h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin: 0 0 8px 0;
}

.empty-state p,
.error-state p {
    margin: 0;
    font-size: 0.9rem;
}

.error-state i {
    color: var(--danger-color);
    opacity: 0.7;
}

.btn-retry {
    margin-top: 16px;
    padding: 10px 20px;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.2s ease;
}

.btn-retry:hover {
    background-color: #0ea5e9;
}

/* Loading Spinner */
.gallery-container .loading-spinner {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 64px 32px;
    gap: 16px;
    color: var(--accent-color);
}

.gallery-container .loading-spinner i {
    font-size: 2.5rem;
}

.gallery-container .loading-spinner span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    padding: 20px 32px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.btn-page {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-page:hover:not(:disabled) {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-page:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

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

.page-num {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 8px;
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.page-num:hover {
    background-color: rgba(56, 189, 248, 0.1);
    color: var(--accent-color);
}

.page-num.active {
    background-color: var(--accent-color);
    color: white;
    font-weight: 600;
}

.page-ellipsis {
    padding: 0 8px;
    color: var(--text-secondary);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    background-color: var(--bg-secondary);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 60%;
}

.modal-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-download:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-1px);
}

.btn-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(239, 68, 68, 0.15);
    border: none;
    border-radius: 8px;
    color: var(--danger-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-close:hover {
    background-color: var(--danger-color);
    color: white;
}

.modal-body {
    flex: 1;
    overflow: hidden;
}

.pdf-viewer-modal {
    height: calc(90vh - 80px);
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    background-color: var(--bg-primary);
}

.pdf-viewer-modal .pdf-page {
    max-width: 100%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border-radius: 4px;
}

.pdf-viewer-modal .loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 16px;
    color: var(--accent-color);
}

.pdf-viewer-modal .loading-spinner i {
    font-size: 2.5rem;
}

.pdf-viewer-modal .loading-spinner span {
    color: var(--text-secondary);
}

.pdf-viewer-modal .error-state {
    padding: 32px;
}

/* Responsive */
@media (max-width: 768px) {
    .gallery-header {
        padding: 16px;
    }
    
    .header-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .header-right {
        width: 100%;
    }
    
    .search-box {
        width: 100%;
    }
    
    .filter-controls {
        width: 100%;
    }
    
    .filter-controls select {
        flex: 1;
    }
    
    .pdf-grid-container {
        padding: 16px;
    }
    
    .pdf-grid {
        grid-template-columns: 1fr;
    }
    
    .pagination-container {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .modal-content {
        width: 95%;
        max-height: 95vh;
    }
    
    .modal-header h2 {
        max-width: 50%;
        font-size: 1rem;
    }
}