/* ============================================
   BLOG - Estilos para artigos
   Estende styles.css da home
   ============================================ */

/* Header do blog (override do header da home) */
.header-blog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.header-blog .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: var(--container-max);
    margin: 0 auto;
}

.header-blog .logo img {
    height: 40px;
    width: auto;
}

.header-blog .nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.header-blog .nav-link {
    color: var(--color-black);
    text-decoration: none;
    font-size: var(--font-size-xs);
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.header-blog .nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-fast);
}

.header-blog .nav-link:hover::after {
    width: 100%;
}

.header-blog .nav-link:hover {
    color: var(--color-primary-dark);
}

/* Menu toggle mobile */
.header-blog .menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.header-blog .menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-black);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* Main do artigo */
.blog-main {
    margin-top: 80px;
    padding: var(--spacing-2xl) 0;
}

.blog-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-xs);
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

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

.breadcrumb a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.breadcrumb .separator {
    color: var(--color-gray);
}

/* Artigo */
.blog-article h1 {
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    color: var(--color-primary-dark);
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

.blog-article .article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: var(--font-size-xs);
    color: var(--color-gray);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-secondary-dark);
}

.blog-article .article-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.blog-article h2 {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    color: var(--color-primary-dark);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.blog-article h3 {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    color: var(--color-primary-dark);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.blog-article p {
    font-size: var(--font-size-md);
    line-height: 1.8;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.blog-article ul,
.blog-article ol {
    margin-bottom: var(--spacing-md);
    padding-left: 1.5rem;
}

.blog-article li {
    font-size: var(--font-size-md);
    line-height: 1.8;
    color: var(--color-black);
    margin-bottom: 0.5rem;
}

.blog-article strong {
    color: var(--color-primary-dark);
}

.blog-article a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: var(--transition-fast);
}

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

/* Bloco de destaque */
.blog-highlight {
    background: var(--color-secondary);
    border-left: 4px solid var(--color-primary);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.blog-highlight p {
    margin-bottom: 0;
    font-style: italic;
}

/* CTA dentro do artigo */
.blog-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    margin: var(--spacing-xl) 0;
    box-shadow: var(--shadow-md);
}

.blog-cta h3 {
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.blog-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.blog-cta .btn-cta-primary {
    display: inline-block;
    background: var(--color-white);
    color: var(--color-primary-dark);
    padding: 0.875rem 2rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: var(--transition-base);
    margin: 0.25rem;
}

.blog-cta .btn-cta-primary:hover {
    background: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.blog-cta .btn-cta-secondary {
    display: inline-block;
    border: 2px solid var(--color-white);
    color: var(--color-white);
    padding: 0.875rem 2rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: var(--transition-base);
    margin: 0.25rem;
}

.blog-cta .btn-cta-secondary:hover {
    background: var(--color-white);
    color: var(--color-primary-dark);
}

/* Índice do artigo (toc) */
.blog-toc {
    background: var(--color-gray-light);
    border: 1px solid var(--color-secondary-dark);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.blog-toc h3 {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
}

.blog-toc ol {
    padding-left: 1.2rem;
    margin-bottom: 0;
}

.blog-toc li {
    margin-bottom: 0.4rem;
}

.blog-toc a {
    color: var(--color-black);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.blog-toc a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Links internos (teia) */
.cluster-links {
    background: var(--color-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.cluster-links h3 {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
}

.cluster-links ul {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 0.5rem;
}

.cluster-links li {
    margin-bottom: 0;
}

.cluster-links a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--color-primary-dark);
    text-decoration: none;
    font-size: var(--font-size-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.cluster-links a:hover {
    background: var(--color-white);
    color: var(--color-primary);
}

/* Próximo artigo (próxima leitura) */
.next-reading {
    background: var(--color-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.next-reading h3 {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
}

.next-reading .next-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-sm);
}

.next-reading .next-item {
    display: block;
    padding: var(--spacing-sm);
    background: var(--color-white);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition-base);
    border: 1px solid transparent;
}

.next-reading .next-item:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.next-reading .next-item h4 {
    font-size: var(--font-size-xs);
    color: var(--color-primary-dark);
    margin-bottom: 0.25rem;
    line-height: 1.4;
}

.next-reading .next-item p {
    font-size: 0.8rem;
    color: var(--color-gray);
    margin-bottom: 0;
}

/* Footer do blog (herda da home via styles.css) */
.footer-blog {
    margin-top: 0;
}

/* ============================================
   RESPONSIVO
   ============================================ */
@media (max-width: 768px) {
    .header-blog .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 1rem 2rem;
        box-shadow: var(--shadow-md);
        gap: 0.75rem;
    }

    .header-blog .nav-menu.active {
        display: flex;
    }

    .header-blog .menu-toggle {
        display: flex;
    }

    .blog-main {
        padding: var(--spacing-lg) 0;
    }

    .blog-container {
        padding: 0 1rem;
    }

    .blog-article h1 {
        font-size: var(--font-size-xl);
    }

    .blog-article h2 {
        font-size: var(--font-size-lg);
    }

    .blog-cta {
        padding: var(--spacing-md);
    }

    .blog-cta .btn-cta-primary,
    .blog-cta .btn-cta-secondary {
        display: block;
        text-align: center;
    }

    .cluster-links ul {
        grid-template-columns: 1fr;
    }

    .next-reading .next-grid {
        grid-template-columns: 1fr;
    }

    .blog-article .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
}