/* ═══════════════════════════════════════════════
   blog.css — CSS compartilhado para artigos do blog
   Depende de: tokens.css, institucional.css (header/footer)
   ═══════════════════════════════════════════════ */

/* ── LAYOUT ── */
.blog-layout {
    max-width: 1200px; margin: 0 auto;
    padding: 100px 32px 60px;
    display: grid; grid-template-columns: 1fr 320px;
    gap: 48px; align-items: start;
}

/* ── BREADCRUMB ── */
.blog-breadcrumb {
    font-size: 13px; color: var(--text-muted);
    margin-bottom: 24px;
}
.blog-breadcrumb a {
    color: var(--text-secondary); text-decoration: none;
    transition: color var(--transition);
}
.blog-breadcrumb a:hover { color: var(--primary); }
.blog-breadcrumb .sep { margin: 0 8px; opacity: 0.5; }

/* ── ARTICLE ── */
.blog-article {
    min-width: 0;
}
.blog-article-header {
    margin-bottom: 32px;
}
.blog-article-meta {
    display: flex; align-items: center; gap: 16px;
    font-size: 13px; color: var(--text-muted);
    margin-bottom: 16px; flex-wrap: wrap;
}
.blog-article-meta time { font-weight: 600; }
.blog-article-meta .reading-time {
    display: flex; align-items: center; gap: 4px;
}
.blog-article-category {
    display: inline-block; padding: 4px 12px;
    background: var(--primary-light); color: var(--primary);
    border-radius: 6px; font-size: 12px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.5px;
}

.blog-article h1 {
    font-size: clamp(26px, 4vw, 38px); font-weight: 800;
    color: var(--text-primary); line-height: 1.2;
    letter-spacing: -0.5px; margin-bottom: 16px;
}
.blog-article-lead {
    font-size: 17px; color: var(--text-secondary);
    line-height: 1.7; padding: 20px 24px;
    background: var(--bg-light); border-left: 4px solid var(--primary);
    border-radius: 0 12px 12px 0; margin-bottom: 32px;
}

/* ── HERO IMAGE ── */
.blog-hero-img {
    width: 100%; border-radius: 16px;
    margin-bottom: 32px; box-shadow: var(--shadow-md);
}

/* ── BODY CONTENT ── */
.blog-body h2 {
    font-size: clamp(20px, 2.5vw, 26px); font-weight: 800;
    color: var(--text-primary); margin: 40px 0 16px;
    letter-spacing: -0.3px;
}
.blog-body h3 {
    font-size: 18px; font-weight: 700;
    color: var(--text-primary); margin: 28px 0 12px;
}
.blog-body p {
    font-size: 16px; color: var(--text-secondary);
    line-height: 1.8; margin-bottom: 16px;
}
.blog-body strong { color: var(--text-primary); }

.blog-body ul, .blog-body ol {
    padding-left: 24px; margin-bottom: 20px;
}
.blog-body li {
    font-size: 15px; color: var(--text-secondary);
    line-height: 1.7; margin-bottom: 8px;
}

.blog-body img {
    width: 100%; border-radius: 12px;
    margin: 24px 0; box-shadow: var(--shadow-sm);
}

.blog-body a {
    color: var(--primary); text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition);
}
.blog-body a:hover { color: var(--primary-hover); }

.blog-body blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-soft);
    padding: 20px 24px; margin: 24px 0;
    border-radius: 0 12px 12px 0;
    font-size: 15px; color: var(--text-secondary);
    line-height: 1.7; font-style: italic;
}

/* ── INFO BOX (callout) ── */
.blog-info-box {
    background: var(--secondary-light);
    border: 1px solid rgba(11,56,106,0.15);
    border-radius: 12px; padding: 20px 24px;
    margin: 24px 0;
}
.blog-info-box.tip { background: var(--success-light); border-color: rgba(16,185,129,0.2); }
.blog-info-box.warning { background: var(--warning-light); border-color: rgba(217,119,6,0.2); }
.blog-info-box h4 {
    font-size: 14px; font-weight: 700;
    margin-bottom: 8px; color: var(--text-primary);
    display: flex; align-items: center; gap: 8px;
}
.blog-info-box p {
    font-size: 14px; margin: 0;
    color: var(--text-secondary); line-height: 1.6;
}

/* ── FAQ SECTION ── */
.blog-faq { margin: 40px 0; }
.blog-faq h2 { margin-bottom: 20px; }
.blog-faq details {
    border: 1px solid var(--border); border-radius: 12px;
    margin-bottom: 10px; overflow: hidden;
    transition: box-shadow var(--transition);
}
.blog-faq details[open] {
    box-shadow: var(--shadow-sm);
    border-color: var(--primary);
}
.blog-faq summary {
    padding: 16px 20px; font-size: 15px; font-weight: 700;
    color: var(--text-primary); cursor: pointer;
    list-style: none; display: flex;
    align-items: center; justify-content: space-between;
    transition: background var(--transition);
}
.blog-faq summary:hover { background: var(--bg-hover); }
.blog-faq summary::after {
    content: '+'; font-size: 20px; font-weight: 400;
    color: var(--primary); flex-shrink: 0; margin-left: 16px;
}
.blog-faq details[open] summary::after { content: '−'; }
.blog-faq .faq-answer {
    padding: 0 20px 18px;
    font-size: 14px; color: var(--text-secondary);
    line-height: 1.7;
}

/* ── ARTICLE CTA ── */
.blog-cta {
    background: var(--gradient-blue); border-radius: 16px;
    padding: 40px 32px; text-align: center;
    margin: 48px 0 0;
}
.blog-cta h3 {
    font-size: 22px; font-weight: 800;
    color: #fff; margin-bottom: 10px;
}
.blog-cta p {
    font-size: 15px; color: rgba(255,255,255,0.8);
    margin-bottom: 20px;
}
.blog-cta a {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 32px; background: var(--gradient);
    color: #fff; border-radius: var(--radius-full);
    font-weight: 700; font-size: 15px;
    text-decoration: none;
    transition: opacity var(--transition), transform var(--transition);
}
.blog-cta a:hover { opacity: 0.9; transform: translateY(-2px); }

/* ── SIDEBAR ── */
.blog-sidebar {
    position: sticky; top: 100px;
}
.blog-sidebar-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 16px; padding: 24px;
    margin-bottom: 20px;
}
.blog-sidebar-card h4 {
    font-size: 14px; font-weight: 700;
    color: var(--text-primary); margin-bottom: 14px;
    text-transform: uppercase; letter-spacing: 0.5px;
}

/* Sidebar CTA */
.blog-sidebar-cta {
    background: var(--gradient-blue); border: none;
    color: #fff; text-align: center;
}
.blog-sidebar-cta h4 { color: #fff; }
.blog-sidebar-cta p {
    font-size: 13px; color: rgba(255,255,255,0.8);
    line-height: 1.5; margin-bottom: 16px;
}
.blog-sidebar-cta a {
    display: block; padding: 12px;
    background: var(--gradient); border-radius: 10px;
    color: #fff; font-weight: 700; font-size: 14px;
    text-decoration: none; text-align: center;
    transition: opacity var(--transition);
}
.blog-sidebar-cta a:hover { opacity: 0.9; }

/* Related articles */
.blog-sidebar-related a {
    display: block; padding: 10px 0;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    transition: color var(--transition);
}
.blog-sidebar-related a:last-child { border-bottom: none; }
.blog-sidebar-related a:hover .related-title { color: var(--primary); }
.related-title {
    font-size: 14px; font-weight: 600;
    color: var(--text-primary); line-height: 1.4;
    margin-bottom: 4px; transition: color var(--transition);
}
.related-category {
    font-size: 11px; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 0.5px;
}

/* ── TABLE OF CONTENTS (sidebar) ── */
.blog-toc a {
    display: block; padding: 6px 0;
    font-size: 13px; color: var(--text-secondary);
    text-decoration: none; border-left: 2px solid transparent;
    padding-left: 12px;
    transition: color var(--transition), border-color var(--transition);
}
.blog-toc a:hover,
.blog-toc a.active {
    color: var(--primary);
    border-left-color: var(--primary);
}
.blog-toc a.toc-h3 { padding-left: 24px; font-size: 12px; }

/* ── AUTHOR ── */
.blog-author {
    display: flex; align-items: center; gap: 14px;
    padding: 20px 0; border-top: 1px solid var(--border);
    margin-top: 40px;
}
.blog-author-avatar {
    width: 48px; height: 48px; border-radius: 50%;
    background: var(--secondary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 18px; flex-shrink: 0;
}
.blog-author-name {
    font-size: 14px; font-weight: 700;
    color: var(--text-primary);
}
.blog-author-bio {
    font-size: 12px; color: var(--text-muted);
    line-height: 1.4;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
    .blog-layout {
        grid-template-columns: 1fr;
        padding: 80px 20px 40px;
        gap: 32px;
    }
    .blog-sidebar {
        position: static;
        display: grid; grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
}
@media (max-width: 600px) {
    .blog-sidebar {
        grid-template-columns: 1fr;
    }
    .blog-article h1 {
        font-size: 24px;
    }
}