/**
 * UJ News Master - Frontend Styles
 * Responsive layouts with CSS custom properties for easy customization
 */

/* CSS Custom Properties (Variables) */
:root {
    --ujnm-primary-color: #0073aa;
    --ujnm-secondary-color: #005177;
    --ujnm-text-color: #333333;
    --ujnm-text-light: #666666;
    --ujnm-border-color: #e1e1e1;
    --ujnm-background-color: #ffffff;
    --ujnm-hover-color: #f8f9fa;
    --ujnm-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --ujnm-shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.15);
    --ujnm-border-radius: 8px;
    --ujnm-spacing-xs: 0.5rem;
    --ujnm-spacing-sm: 1rem;
    --ujnm-spacing-md: 1.5rem;
    --ujnm-spacing-lg: 2rem;
    --ujnm-font-size-sm: 0.875rem;
    --ujnm-font-size-base: 1rem;
    --ujnm-font-size-lg: 1.125rem;
    --ujnm-font-size-xl: 1.25rem;
    --ujnm-line-height-tight: 1.25;
    --ujnm-line-height-normal: 1.5;
    --ujnm-transition: all 0.3s ease;
}

/* Base Container */
.ujnm-container {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.ujnm-container *,
.ujnm-container *::before,
.ujnm-container *::after {
    box-sizing: border-box;
}

/* Loading State */
.ujnm-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--ujnm-spacing-lg);
    color: var(--ujnm-text-light);
    font-style: italic;
}

.ujnm-loading::before {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--ujnm-border-color);
    border-top-color: var(--ujnm-primary-color);
    border-radius: 50%;
    margin-right: var(--ujnm-spacing-xs);
    animation: ujnm-spin 1s linear infinite;
}

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

/* Error State */
.ujnm-error {
    padding: var(--ujnm-spacing-md);
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--ujnm-border-radius);
    color: #dc2626;
    text-align: center;
}

/* Empty State */
.ujnm-empty {
    padding: var(--ujnm-spacing-lg);
    text-align: center;
    color: var(--ujnm-text-light);
    font-style: italic;
}

/* Grid Layout */
.ujnm-grid {
    display: grid;
    gap: var(--ujnm-spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.ujnm-grid.ujnm-columns-1 {
    grid-template-columns: 1fr;
}

.ujnm-grid.ujnm-columns-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.ujnm-grid.ujnm-columns-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.ujnm-grid.ujnm-columns-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.ujnm-grid.ujnm-columns-5 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.ujnm-grid.ujnm-columns-6 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Article Card */
.ujnm-article-card {
    background: var(--ujnm-background-color);
    border: 1px solid var(--ujnm-border-color);
    border-radius: var(--ujnm-border-radius);
    overflow: hidden;
    transition: var(--ujnm-transition);
    box-shadow: var(--ujnm-shadow);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.ujnm-article-card:hover {
    box-shadow: var(--ujnm-shadow-hover);
    transform: translateY(-2px);
}

.ujnm-article-image {
    position: relative;
    overflow: hidden;
    background-color: var(--ujnm-hover-color);
}

.ujnm-article-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--ujnm-transition);
}

.ujnm-article-card:hover .ujnm-article-image img {
    transform: scale(1.05);
}

.ujnm-article-content {
    padding: var(--ujnm-spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.ujnm-article-title {
    margin: 0 0 var(--ujnm-spacing-xs) 0;
    font-size: var(--ujnm-font-size-lg);
    font-weight: 600;
    line-height: var(--ujnm-line-height-tight);
    color: var(--ujnm-text-color);
}

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

.ujnm-article-title a:hover {
    color: var(--ujnm-primary-color);
}

.ujnm-article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ujnm-spacing-xs);
    margin-bottom: var(--ujnm-spacing-sm);
    font-size: var(--ujnm-font-size-sm);
    color: var(--ujnm-text-light);
}

.ujnm-article-author,
.ujnm-article-date {
    display: flex;
    align-items: center;
}

.ujnm-article-author::before {
    content: '👤';
    margin-right: 4px;
}

.ujnm-article-date::before {
    content: '📅';
    margin-right: 4px;
}

.ujnm-article-excerpt {
    margin: 0 0 var(--ujnm-spacing-md) 0;
    color: var(--ujnm-text-light);
    line-height: var(--ujnm-line-height-normal);
    flex: 1;
}

.ujnm-article-cta {
    margin-top: auto;
}

.ujnm-article-cta a {
    display: inline-block;
    padding: var(--ujnm-spacing-xs) var(--ujnm-spacing-md);
    background-color: var(--ujnm-primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--ujnm-border-radius);
    font-size: var(--ujnm-font-size-sm);
    font-weight: 500;
    transition: var(--ujnm-transition);
}

.ujnm-article-cta a:hover {
    background-color: var(--ujnm-secondary-color);
    transform: translateY(-1px);
}

/* List Layout */
.ujnm-list {
    display: flex;
    flex-direction: column;
    gap: var(--ujnm-spacing-md);
}

.ujnm-article-list-item {
    display: flex;
    background: var(--ujnm-background-color);
    border: 1px solid var(--ujnm-border-color);
    border-radius: var(--ujnm-border-radius);
    overflow: hidden;
    transition: var(--ujnm-transition);
    box-shadow: var(--ujnm-shadow);
}

.ujnm-article-list-item:hover {
    box-shadow: var(--ujnm-shadow-hover);
    background-color: var(--ujnm-hover-color);
}

.ujnm-list-image {
    flex-shrink: 0;
    width: 150px;
    height: 120px;
    overflow: hidden;
    background-color: var(--ujnm-hover-color);
}

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

.ujnm-article-list-item:hover .ujnm-list-image img {
    transform: scale(1.05);
}

.ujnm-list-content {
    flex: 1;
    padding: var(--ujnm-spacing-md);
    display: flex;
    flex-direction: column;
}

.ujnm-list-title {
    margin: 0 0 var(--ujnm-spacing-xs) 0;
    font-size: var(--ujnm-font-size-xl);
    font-weight: 600;
    line-height: var(--ujnm-line-height-tight);
    color: var(--ujnm-text-color);
}

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

.ujnm-list-title a:hover {
    color: var(--ujnm-primary-color);
}

.ujnm-list-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ujnm-spacing-sm);
    margin-bottom: var(--ujnm-spacing-sm);
    font-size: var(--ujnm-font-size-sm);
    color: var(--ujnm-text-light);
}

.ujnm-list-excerpt {
    margin: 0 0 var(--ujnm-spacing-md) 0;
    color: var(--ujnm-text-light);
    line-height: var(--ujnm-line-height-normal);
    flex: 1;
}

.ujnm-list-cta {
    margin-top: auto;
    align-self: flex-start;
}

/* Carousel Layout */
.ujnm-carousel {
    position: relative;
    overflow: hidden;
}

.ujnm-carousel-wrapper {
    overflow: hidden;
    margin: 0 40px;
}

.ujnm-carousel-track {
    display: flex;
    transition: transform 0.3s ease;
    gap: var(--ujnm-spacing-md);
}

.ujnm-carousel-slide {
    flex: 0 0 auto;
    width: calc(33.333% - var(--ujnm-spacing-md));
    min-width: 280px;
}

.ujnm-carousel.ujnm-slides-1 .ujnm-carousel-slide {
    width: 100%;
}

.ujnm-carousel.ujnm-slides-2 .ujnm-carousel-slide {
    width: calc(50% - var(--ujnm-spacing-md) / 2);
}

.ujnm-carousel.ujnm-slides-3 .ujnm-carousel-slide {
    width: calc(33.333% - var(--ujnm-spacing-md) * 2 / 3);
}

.ujnm-carousel.ujnm-slides-4 .ujnm-carousel-slide {
    width: calc(25% - var(--ujnm-spacing-md) * 3 / 4);
}

.ujnm-carousel.ujnm-slides-5 .ujnm-carousel-slide {
    width: calc(20% - var(--ujnm-spacing-md) * 4 / 5);
}

.ujnm-carousel.ujnm-slides-6 .ujnm-carousel-slide {
    width: calc(16.666% - var(--ujnm-spacing-md) * 5 / 6);
}

.ujnm-carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--ujnm-background-color);
    border: 1px solid var(--ujnm-border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--ujnm-transition);
    box-shadow: var(--ujnm-shadow);
    z-index: 2;
}

.ujnm-carousel-nav:hover {
    background-color: var(--ujnm-primary-color);
    color: white;
    box-shadow: var(--ujnm-shadow-hover);
}

.ujnm-carousel-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--ujnm-hover-color);
}

.ujnm-carousel-prev {
    left: 0;
}

.ujnm-carousel-next {
    right: 0;
}

.ujnm-carousel-nav::before {
    font-size: 16px;
    font-weight: bold;
}

.ujnm-carousel-prev::before {
    content: '‹';
}

.ujnm-carousel-next::before {
    content: '›';
}

/* Load more styles removed */

/* Responsive Design */
@media (max-width: 768px) {
    .ujnm-grid {
        grid-template-columns: 1fr;
        gap: var(--ujnm-spacing-sm);
    }
    
    .ujnm-article-list-item {
        flex-direction: column;
    }
    
    .ujnm-list-image {
        width: 100%;
        height: 200px;
    }
    
    .ujnm-carousel-wrapper {
        margin: 0 30px;
    }
    
    .ujnm-carousel-slide {
        width: 100% !important;
        min-width: auto;
    }
    
    .ujnm-carousel-nav {
        width: 35px;
        height: 35px;
    }
}

@media (max-width: 480px) {
    .ujnm-container {
        padding: 0 var(--ujnm-spacing-xs);
    }
    
    .ujnm-article-content,
    .ujnm-list-content {
        padding: var(--ujnm-spacing-sm);
    }
    
    .ujnm-carousel-wrapper {
        margin: 0 25px;
    }
    
    .ujnm-carousel-nav {
        width: 30px;
        height: 30px;
    }
    
    .ujnm-article-meta,
    .ujnm-list-meta {
        flex-direction: column;
        gap: 2px;
    }
}

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

/* Focus styles for keyboard navigation */
.ujnm-article-title a:focus,
.ujnm-article-cta a:focus,
.ujnm-list-title a:focus,
.ujnm-list-cta a:focus,
.ujnm-load-more-button:focus,
.ujnm-carousel-nav:focus {
    outline: 2px solid var(--ujnm-primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --ujnm-border-color: #000000;
        --ujnm-text-light: #000000;
        --ujnm-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .ujnm-article-card,
    .ujnm-article-list-item,
    .ujnm-article-image img,
    .ujnm-list-image img,
    .ujnm-article-cta a,
    .ujnm-load-more-button,
    .ujnm-carousel-nav,
    .ujnm-carousel-track {
        transition: none;
    }
    
    .ujnm-article-card:hover,
    .ujnm-article-cta a:hover {
        transform: none;
    }
    
    .ujnm-article-card:hover .ujnm-article-image img,
    .ujnm-article-list-item:hover .ujnm-list-image img {
        transform: none;
    }
    
    .ujnm-loading::before {
        animation: none;
    }
}

/* Print styles */
@media print {
    .ujnm-carousel-nav {
        display: none;
    }
    
    .ujnm-grid,
    .ujnm-list {
        break-inside: avoid;
    }
    
    .ujnm-article-card,
    .ujnm-article-list-item {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}