/* Estilos responsivos */
@media screen and (max-width: 992px) {
    .articles-row {
        justify-content: center;
    }
    
    .article-card {
        flex: 0 0 calc(50% - 20px);
    }
    
    .footer-container {
        flex-direction: column;
    }
    
    .footer-section {
        margin-bottom: 30px;
    }
}

@media screen and (max-width: 768px) {
    .header-container {
        flex-direction: column;
    }
    
    .logo {
        margin-bottom: 15px;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav ul li {
        margin: 5px 0;
    }
    
    .dropdown-content {
        position: static;
        display: none;
        width: 100%;
        text-align: center;
    }
    
    .dropdown:hover .dropdown-content {
        display: none;
    }
    
    .dropdown.active .dropdown-content {
        display: block;
    }
    
    .article-card {
        flex: 0 0 100%;
    }
    
    .social-sidebar {
        display: none;
    }
}

@media screen and (max-width: 480px) {
    .search-box input {
        padding: 8px 15px;
        font-size: 14px;
    }
    
    .article-card h3 {
        font-size: 14px;
    }
    
    .pagination a {
        padding: 6px 12px;
        font-size: 14px;
    }
}