/**
 * Related Articles Plugin Styles
 * 
 * Uses CSS custom properties for easy theming
 * Compatible with UIkit framework
 */

/* Custom Properties (can be overridden) */
:root {
    --related-articles-primary: #1e3a5f;
    --related-articles-card-bg: #ffffff;
    --related-articles-text: #333333;
    --related-articles-meta: #666666;
    --related-articles-border: rgba(0, 0, 0, 0.1);
    --related-articles-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --related-articles-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);
    --related-articles-transition: 0.3s ease;
}

/* Main Wrapper */
.related-articles-wrapper {
    margin: 3rem 0;
    padding: 2rem 0;
    border-top: 1px solid var(--related-articles-border);
}

/* Header Section */
.related-articles-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.related-articles-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--related-articles-primary);
}

.related-articles-count {
    font-size: 0.875rem;
    color: var(--related-articles-meta);
    background: rgba(0, 0, 0, 0.05);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

/* Article Card */
.related-articles-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--related-articles-card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--related-articles-shadow);
    transition: transform var(--related-articles-transition), 
                box-shadow var(--related-articles-transition);
}

.related-articles-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--related-articles-shadow-hover);
}

/* Card Image */
.related-articles-card .uk-card-media-top {
    position: relative;
    overflow: hidden;
}

.related-articles-card .uk-card-media-top img {
    transition: transform var(--related-articles-transition);
}

.related-articles-card:hover .uk-card-media-top img {
    transform: scale(1.05);
}

/* Card Body */
.related-articles-card .uk-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
}

/* Card Title */
.related-articles-card-title {
    margin: 0 0 0.5rem 0;
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--related-articles-text);
    transition: color var(--related-articles-transition);
}

.related-articles-card:hover .related-articles-card-title {
    color: var(--related-articles-primary);
}

/* Meta Info */
.related-articles-meta {
    font-size: 0.8125rem;
    color: var(--related-articles-meta);
    margin-bottom: 0.75rem;
}

.related-articles-separator {
    margin: 0 0.25rem;
}

/* Excerpt */
.related-articles-excerpt {
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--related-articles-meta);
}

/* Hidden Items (for pagination/loadmore) */
.related-articles-hidden {
    display: none;
}

/* Slider Specific Styles */
.related-articles-slider {
    margin: 0 -15px;
    padding: 0 15px;
}

.related-articles-slider .uk-slider-items {
    margin: 0;
}

.related-articles-slider .uk-slider-items > li {
    padding: 10px;
}

/* Slider Navigation */
.related-articles-slider .uk-slidenav {
    color: var(--related-articles-primary);
    background: var(--related-articles-card-bg);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    box-shadow: var(--related-articles-shadow);
}

.related-articles-slider .uk-slidenav:hover {
    color: var(--related-articles-card-bg);
    background: var(--related-articles-primary);
}

/* Dots Navigation */
.related-articles-slider .uk-dotnav > li > a {
    background: var(--related-articles-border);
}

.related-articles-slider .uk-dotnav > .uk-active > a {
    background: var(--related-articles-primary);
}

/* Pagination Styles */
.related-articles-pagination .uk-pagination > li > a {
    color: var(--related-articles-text);
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    transition: all var(--related-articles-transition);
}

.related-articles-pagination .uk-pagination > li > a:hover {
    background: rgba(0, 0, 0, 0.05);
}

.related-articles-pagination .uk-pagination > .uk-active > a {
    background: var(--related-articles-primary);
    color: #fff;
}

/* Load More Button */
.related-articles-loadmore-btn {
    background: var(--related-articles-primary);
    color: #fff;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--related-articles-transition);
}

.related-articles-loadmore-btn:hover {
    background: var(--related-articles-text);
    transform: translateY(-2px);
}

.related-articles-loadmore-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Aspect Ratio Support for older browsers */
.uk-ratio {
    position: relative;
}

.uk-ratio::before {
    content: "";
    display: block;
}

.uk-ratio-16-9::before {
    padding-top: 56.25%;
}

.uk-ratio-4-3::before {
    padding-top: 75%;
}

.uk-ratio-1-1::before {
    padding-top: 100%;
}

.uk-ratio-21-9::before {
    padding-top: 42.86%;
}

.uk-ratio > * {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Responsive Adjustments */
@media (max-width: 959px) {
    .related-articles-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .related-articles-slider .uk-slidenav {
        display: none;
    }
}

@media (max-width: 639px) {
    .related-articles-wrapper {
        margin: 2rem 0;
        padding: 1.5rem 0;
    }
    
    .related-articles-title {
        font-size: 1.25rem;
    }
    
    .related-articles-card .uk-card-body {
        padding: 1rem;
    }
    
    .related-articles-card-title {
        font-size: 1rem;
    }
}

/* Animation for Load More */
.related-articles-item {
    animation: fadeInUp 0.4s ease forwards;
}

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

/* Placeholder for images */
.related-articles-card .uk-card-media-top:empty::before {
    content: "";
    display: block;
    padding-top: 56.25%;
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
}