/* =========================================================================
   BLOG COMPONENT - QTR
   Archivo: assets/css/components/blog.css
   Descripción: Estilos específicos para la página de blog
========================================================================= */

/* ===== HERO BLOG ===== */
.blog-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-20) 0;
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') repeat;
    opacity: 0.3;
    pointer-events: none;
}

.blog-hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.blog-hero-content h1 {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-6);
}

.blog-hero-subtitle {
    font-size: var(--font-size-xl);
    opacity: 0.9;
    margin-bottom: var(--spacing-10);
    line-height: 1.6;
}

.blog-hero-badges {
    display: flex;
    justify-content: center;
    gap: var(--spacing-6);
    flex-wrap: wrap;
}

.blog-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-3) var(--spacing-5);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.blog-badge i {
    color: var(--color-white);
    font-size: 1.1rem;
}

/* ===== FEATURED POST ===== */
.featured-post {
    background: var(--color-gray-50);
    padding: var(--spacing-16) 0;
}

.featured-label {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-6);
}

.featured-label i {
    font-size: 0.9rem;
}

.featured-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-10);
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-gray-200);
}

.featured-image {
    position: relative;
    height: 400px;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

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

.featured-text {
    padding: var(--spacing-8);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-text h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.featured-excerpt {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-6);
    line-height: 1.6;
}

.featured-meta {
    display: flex;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-6);
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.author-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-gray-200);
}

.meta-item i {
    color: var(--color-primary);
    font-size: 0.9rem;
}

/* ===== FILTROS ===== */
.blog-filters {
    background: var(--color-white);
    padding: var(--spacing-8) 0;
    border-bottom: 1px solid var(--color-gray-200);
    position: sticky;
    top: 73px;
    z-index: var(--z-sticky);
}

.filters-container {
    display: flex;
    gap: var(--spacing-6);
    align-items: center;
    flex-wrap: wrap;
}

.filter-search {
    flex: 1;
    min-width: 280px;
    position: relative;
}

.filter-search i {
    position: absolute;
    left: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
}

.filter-search input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4) var(--spacing-3) var(--spacing-10);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
}

.filter-search input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.filter-categories {
    display: flex;
    gap: var(--spacing-3);
    flex-wrap: wrap;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: var(--transition-base);
}

.filter-btn:hover {
    background: var(--color-gray-200);
    transform: translateY(-1px);
}

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

.filter-btn i {
    font-size: 0.9rem;
}

/* ===== GRID DE ARTÍCULOS ===== */
.blog-articles {
    background: var(--color-gray-50);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-8);
}

.blog-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-base);
    transition: var(--transition-slow);
    border: 1px solid var(--color-gray-200);
    display: flex;
    flex-direction: column;
}

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

.blog-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.1);
}

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

.blog-card-content {
    padding: var(--spacing-6);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-card-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-3);
    line-height: 1.3;
}

.blog-card-excerpt {
    color: var(--color-gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-4);
    flex-grow: 1;
    font-size: var(--font-size-base);
}

.blog-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-4);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--color-gray-100);
}

.meta-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.meta-author img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-gray-200);
}

.meta-author span {
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    font-weight: 500;
}

.meta-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
}

.meta-date i {
    font-size: 0.85rem;
}

.blog-card-link {
    color: var(--color-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    transition: var(--transition-base);
    text-decoration: none;
    font-size: var(--font-size-sm);
}

.blog-card-link:hover {
    color: var(--color-primary-dark);
    gap: var(--spacing-3);
}

.blog-card-link i {
    transition: var(--transition-base);
}

/* ===== NO RESULTS ===== */
.no-results {
    text-align: center;
    padding: var(--spacing-16) 0;
}

.no-results i {
    font-size: 4rem;
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-4);
}

.no-results h3 {
    font-size: var(--font-size-2xl);
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.no-results p {
    color: var(--color-gray-500);
    font-size: var(--font-size-lg);
}

/* ===== PAGINACIÓN ===== */
.blog-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-4);
    margin-top: var(--spacing-12);
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-5);
    background: var(--color-white);
    color: var(--color-primary);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-1px);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-numbers {
    display: flex;
    gap: var(--spacing-2);
}

.pagination-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-base);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
}

.pagination-number:hover {
    background: var(--color-gray-100);
    transform: translateY(-1px);
}

.pagination-number.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* ===== NEWSLETTER SECTION ===== */
.blog-newsletter {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-16) 0;
}

.newsletter-content {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: var(--spacing-8);
    align-items: center;
}

.newsletter-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    backdrop-filter: blur(10px);
}

.newsletter-text h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
}

.newsletter-text p {
    opacity: 0.9;
    font-size: var(--font-size-base);
}

.newsletter-form-inline {
    display: flex;
    gap: var(--spacing-3);
    max-width: 400px;
}

.newsletter-form-inline input {
    flex: 1;
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    font-size: var(--font-size-base);
    backdrop-filter: blur(10px);
}

.newsletter-form-inline input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.newsletter-form-inline input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.15);
}

.newsletter-form-inline button {
    white-space: nowrap;
}

/* ===== CATEGORÍAS ===== */
.blog-categories {
    background: var(--color-white);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-6);
}

.category-card {
    background: var(--color-gray-50);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: var(--transition-base);
    border: 2px solid transparent;
    text-decoration: none;
}

.category-card:hover {
    background: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-4);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-white);
    transition: var(--transition-base);
}

.category-card:hover .category-icon {
    transform: scale(1.1);
}

.category-icon.security {
    background: linear-gradient(135deg, var(--color-accent), #b91c1c);
}

.category-icon.development {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.category-icon.monitoring {
    background: linear-gradient(135deg, var(--color-secondary), #0e7490);
}

.category-icon.optimization {
    background: linear-gradient(135deg, var(--color-success), #047857);
}

.category-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-2);
}

.category-card p {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .featured-content {
        grid-template-columns: 1fr;
    }
    
    .featured-image {
        height: 300px;
    }
    
    .newsletter-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .newsletter-icon {
        margin: 0 auto;
    }
    
    .newsletter-form-inline {
        margin: 0 auto;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .blog-hero {
        padding: var(--spacing-16) 0;
    }
    
    .blog-hero-content h1 {
        font-size: var(--font-size-4xl);
    }
    
    .blog-hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .blog-hero-badges {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-3);
    }
    
    .blog-badge {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .filters-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-search {
        width: 100%;
    }
    
    .filter-categories {
        justify-content: center;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .featured-text h2 {
        font-size: var(--font-size-2xl);
    }
    
    .featured-excerpt {
        font-size: var(--font-size-base);
    }
    
    .featured-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-3);
    }
    
    .newsletter-form-inline {
        flex-direction: column;
    }
    
    .newsletter-form-inline button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .blog-hero-content h1 {
        font-size: var(--font-size-3xl);
    }
    
    .featured-text {
        padding: var(--spacing-6);
    }
    
    .featured-text h2 {
        font-size: var(--font-size-xl);
    }
    
    .blog-card-content {
        padding: var(--spacing-4);
    }
    
    .filter-categories {
        gap: var(--spacing-2);
    }
    
    .filter-btn {
        font-size: var(--font-size-xs);
        padding: var(--spacing-2) var(--spacing-3);
    }
    
    .pagination-btn {
        padding: var(--spacing-2) var(--spacing-3);
        font-size: var(--font-size-sm);
    }
    
    .pagination-number {
        width: 36px;
        height: 36px;
    }
}