/* Estilos gerais para responsividade */
@media (max-width: 1199.98px) {
    .display-lg-4 {
        font-size: calc(1.475rem + 2.7vw);
    }
}

@media (max-width: 991.98px) {
    /* Ajustes para tablets */
    .navbar-collapse {
        padding-top: 1rem;
    }
    
    .navbar-nav .dropdown-menu {
        position: static;
        float: none;
    }
    
    .sticky-sidebar {
        position: static;
        max-height: none !important;
    }
}

@media (max-width: 767.98px) {
    /* Ajustes para mobile */
    .article-content .row.g-3 .col-md-6:not(:last-child),
    .article-content .row.g-3 .col-lg-4:not(:last-child) {
        margin-bottom: 1rem;
    }
    
    .call-to-action .col-md-4 {
        margin-top: 1rem;
    }
    
    .author-bio img {
        margin-bottom: 1rem;
    }
    
    .related-articles .col-md-4 {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 575.98px) {
    /* Ajustes para mobile pequeno */
    .navbar-brand {
        font-size: 1rem;
    }
    
    .article-header .d-flex {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .article-header .d-flex > div {
        margin-top: 0.5rem;
    }
    
    .article-footer .d-flex {
        flex-direction: column;
        gap: 1rem;
    }
    
    .comment-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .tag-cloud {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .tag {
        font-size: 0.8rem;
        padding: 0.25rem 0.5rem;
    }
}

/* Estilos para o sticky sidebar */
.sticky-sidebar {
    position: sticky;
    top: 80px;
    overflow-y: auto;
}

/* Ajustes para o botão de voltar ao topo */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    z-index: 99;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    padding: 0;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.back-to-top:hover {
    opacity: 1;
}

/* Ajustes para imagens responsivas */
.img-fluid {
    max-width: 100%;
    height: auto;
}

/* Melhorias para tabelas em mobile */
.table-responsive {
    -webkit-overflow-scrolling: touch;
    -ms-overflow-style: -ms-autohiding-scrollbar;
}

/* Estilos para tags */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    display: inline-block;
    padding: 0.35rem 0.65rem;
    font-size: 0.875rem;
    color: #0d6efd;
    background-color: rgba(13, 110, 253, 0.1);
    border-radius: 0.25rem;
    text-decoration: none;
    transition: all 0.2s;
}

.tag:hover {
    color: white;
    background-color: #0d6efd;
}

/* Melhorias de acessibilidade */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}