/**
 * All of the CSS for your public-facing functionality should be
 * included in this file.
 */

.literature-archive {
    padding-top: 12rem;
    padding-bottom: 14rem;
}

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

/* Literature Archive Layout */
.literature-content-wrapper {
    display: flex;
    gap: 2rem;
}

.literature-main {
    flex: 2;
    order: 2;
}

.literature-sidebar {
    flex: 1;
    order: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .literature-content-wrapper {
        flex-direction: column;
    }
}

/* Widget Styling */
.literature-sidebar .widget {
    margin-bottom: 2rem;
    padding: 1rem;
    background: #f9f9f9;
    border-radius: 4px;
}

.literature-sidebar .widget-title {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: bold;
    color: #333;
}

/* Literature Filter Styling */
.literature-filters {
    margin-bottom: 2rem;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 4px;
    border: 1px solid #e9ecef;
}

.filter-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.literature-search-input {
    flex: 1;
    min-width: 200px;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.literature-search-input:focus {
    outline: none;
    border-color: #007cba;
    box-shadow: 0 0 0 2px rgba(0, 124, 186, 0.2);
}

.clear-filters-btn {
    padding: 0.5rem 1rem;
    background: #6c757d;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
}

.clear-filters-btn:hover {
    background: #5a6268;
}

.loading-indicator {
    margin-top: 1rem;
    padding: 0.5rem;
    text-align: center;
    color: #6c757d;
    font-style: italic;
}

.error-message {
    color: #dc3545;
    font-weight: bold;
    text-align: center;
    padding: 1rem;
}

/* Literature Categories Styling */
.literature-categories-widget {
    margin-bottom: 2rem;
}

.literature-categories-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.literature-categories-list .category-item {
    margin-bottom: 0.5rem;
    padding: 0.25rem 0;
    border-bottom: 1px solid #eee;
}

.category-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.category-checkbox {
    margin: 0;
}

.literature-categories-list .category-item:last-child {
    border-bottom: none;
}

.literature-categories-list a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
}

.literature-categories-list a:hover {
    color: #007cba;
}

.literature-categories-list .count {
    color: #666;
    font-size: 0.9rem;
    font-weight: normal;
}

/* Screen reader only class */
.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Hierarchical category styling */
.literature-subcategories {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0 0;
}

.literature-subcategories .category-item {
    padding-left: 1rem;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 0.25rem;
}

.literature-subcategories .category-item a {
    font-weight: 400;
    font-size: 0.9rem;
    color: #555;
}

.literature-subcategories .category-item a:hover {
    color: #007cba;
}

/* Multiple levels of nesting */
.category-level-1 {
    padding-left: 1rem;
}

.category-level-2 {
    padding-left: 2rem;
}

.category-level-3 {
    padding-left: 3rem;
}

/* Add visual indicators for parent categories */
.literature-categories-list .category-item:has(.literature-subcategories) > a {
    font-weight: 600;
}

/* Literature Items Grid */
.literature-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
    transition: opacity 0.3s ease;
}

.literature-items.loading {
    opacity: 0.6;
}

.literature-items.hidden {
    opacity: 0;
}

/* Literature Item Card Styling */
.literature-item {
    display: flex;
    flex-direction: column;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
}

.literature-content {
    padding: 1rem 1.5rem;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.literature-item:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.literature-thumbnail {
    /*margin-bottom: 1rem;*/
}

.literature-thumbnail img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
}

.literature-title {
    margin: 0 0 1rem 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: #333;
    line-height: 1.3;
}

.literature-description {
    margin-bottom: 1.5rem;
    color: #666;
    line-height: 1.5;
    flex-grow: 1;
}

.literature-download {
    margin-top: auto;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center !important;
    gap: 0.5rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: #007cba;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
    transition: background-color 0.3s ease;
}

.download-btn:hover {
    background: #005a87;
    color: white;
}

.download-icon {
    font-size: 1.1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .filter-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .literature-search-input {
        min-width: auto;
    }
    
    .literature-items {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .literature-thumbnail img {
        height: 150px;
    }
}

/* Load More Button */
.load-more-container {
    text-align: center;
    margin-top: 2rem;
}

.load-more-btn {
    padding: 0.75rem 2rem;
    background: #007cba;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.load-more-btn:hover {
    background: #005a87;
}

.load-more-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

@media (max-width: 480px) {
    .literature-item {
        padding: 0.5rem 1rem
    }
    
    .literature-thumbnail img {
        height: 120px;
    }
}