/* ===== BLOG STYLES - SE CHIP ===== */

/* Hero Section del Blog */
.blog-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    margin-top: 3.5rem; /* Para el header del proyecto */
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    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="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.blog-hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    z-index: 2;
}

.blog-hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    position: relative;
    z-index: 2;
}

.blog-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.stat-item i {
    font-size: 1.1rem;
}

/* Categorías */
.blog-categories {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 2rem;
}

.category-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.2rem;
    border: 2px solid #e9ecef;
    background: white;
    color: #6c757d;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.9rem;
}

.category-btn:hover {
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.category-btn.active {
    background: #667eea;
    border-color: #667eea;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

/* Cards de Posts */
.post-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    margin-bottom: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

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

.post-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.post-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: #667eea;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
}

.post-card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.post-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.post-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.post-title a:hover {
    color: #667eea;
}

.post-excerpt {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.post-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid #f8f9fa;
    font-size: 0.9rem;
    color: #6c757d;
}

.post-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.post-read-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Loading States */
.loading-posts {
    padding: 3rem 0;
    text-align: center;
    color: #6c757d;
}

.loading-posts i {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #667eea;
}

.spin {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Paginación */
.pagination .page-link {
    border: none;
    color: #667eea;
    padding: 0.7rem 1rem;
    margin: 0 0.2rem;
    border-radius: 50px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.pagination .page-link:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

.pagination .page-item.active .page-link {
    background: #667eea;
    border-color: #667eea;
    color: white;
}

/* Estados Empty */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: #6c757d;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: #dee2e6;
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: #495057;
}

/* Responsive */
@media (max-width: 768px) {
    .blog-hero {
        padding: 100px 0 60px;
    }
    
    .blog-hero-title {
        font-size: 2.2rem;
    }
    
    .blog-stats {
        gap: 1rem;
    }
    
    .stat-item {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    .blog-categories {
        gap: 0.5rem;
    }
    
    .category-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .post-card-content {
        padding: 1.2rem;
    }
    
    .post-title {
        font-size: 1.1rem;
    }
}

/* Animaciones de entrada */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

/* Filtros activos */
.post-card.hidden {
    display: none;
}

.post-card.show {
    display: block;
    animation: fadeIn 0.5s ease-in;
}