/* Import styles */
@import url('index.css');

/* Blog Index Page Specific Styles */

/* Blog Hero Section */
.blog-hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 75%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 25%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
    line-height: 1.1;
    color: var(--text-primary);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-8);
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-8);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-1);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Featured Article */
.featured-article {
    padding: var(--spacing-16) 0;
    background: var(--bg-secondary);
}

.featured-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

.featured-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.featured-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.featured-image:hover img {
    transform: scale(1.05);
}

.featured-badge {
    position: absolute;
    top: var(--spacing-4);
    left: var(--spacing-4);
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.featured-meta {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.featured-category {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-md);
    font-weight: 500;
}

.featured-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
    line-height: 1.2;
}

.featured-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.featured-excerpt {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-8);
}

.featured-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.featured-stats {
    display: flex;
    gap: var(--spacing-6);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.featured-stats span {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

/* Categories Filter */
.categories-filter {
    padding: var(--spacing-8) 0;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 80px;
    z-index: var(--z-sticky);
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3);
    flex-wrap: wrap;
}

.filter-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    background: var(--bg-primary);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.filter-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
}

/* Blog Articles Grid */
.blog-articles {
    padding: var(--spacing-16) 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--spacing-8);
}

.article-card {
    background: var(--bg-primary);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.article-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

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

.article-category {
    position: absolute;
    top: var(--spacing-3);
    left: var(--spacing-3);
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.article-content {
    padding: var(--spacing-6);
}

.article-meta {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.article-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    line-height: 1.3;
}

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

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

.article-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-6);
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.article-tags {
    display: flex;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.tag {
    background: var(--gray-100);
    color: var(--text-secondary);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tag:hover {
    background: var(--primary-color);
    color: var(--white);
}

.article-stats {
    display: flex;
    gap: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.article-stats span {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

/* Load More Section */
.load-more-section {
    text-align: center;
    margin-top: var(--spacing-12);
}

.load-more-btn {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-base);
}

/* Newsletter Section */
.newsletter-section {
    padding: var(--spacing-20) 0;
    background: var(--bg-secondary);
}

.newsletter-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

.newsletter-text h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-4);
    color: var(--text-primary);
}

.newsletter-text p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.6;
}

.subscription-form {
    display: flex;
    gap: var(--spacing-3);
}

.newsletter-input {
    flex: 1;
    padding: var(--spacing-4);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-stats {
        gap: var(--spacing-6);
    }
    
    .featured-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
    
    .featured-image {
        order: -1;
    }
    
    .filter-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--spacing-2);
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
        text-align: center;
    }
    
    .subscription-form {
        flex-direction: column;
    }
    
    .featured-actions {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .article-footer {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .filter-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .filter-tab {
        width: 100%;
        justify-content: center;
        max-width: 300px;
    }
}

/* Animation for filtered articles */
.article-card.filtered-out {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
    transition: all var(--transition-normal);
}

.article-card.filtered-in {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
    transition: all var(--transition-normal);
}