/* ========================================
   BLOG — Estilos específicos
   ======================================== */

/* Blog Listing */
.blog-hero {
    padding: 10rem 0 4rem;
    text-align: center;
    position: relative;
}

.blog-hero .section-tag {
    margin-bottom: 1rem;
    display: inline-block;
}

.blog-hero h1 {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.blog-hero p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* Filters */
.blog-filters {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
    color: var(--primary-light);
}

/* Search */
.blog-search {
    max-width: 480px;
    margin: 0 auto 3rem;
    position: relative;
}

.blog-search input {
    width: 100%;
    padding: 0.85rem 1.25rem 0.85rem 3rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-secondary);
    transition: var(--transition-base);
}

.blog-search input::placeholder {
    color: var(--text-muted);
}

.blog-search input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.blog-search i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

/* Cards Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
}

/* Article Card */
.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.article-card-image {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.article-card-image i {
    font-size: 2.5rem;
    color: var(--text-muted);
    opacity: 0.3;
}

.article-card-image .card-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.35rem 0.85rem;
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-light);
}

.article-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.article-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.article-card-meta span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.article-card-title {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.article-card-title a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.article-card-title a:hover {
    color: var(--primary-light);
}

.article-card-excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    flex: 1;
    margin-bottom: 1.25rem;
}

.article-card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    padding: 0.25rem 0.65rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* No results */
.blog-no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
    grid-column: 1 / -1;
}

.blog-no-results i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
    opacity: 0.3;
}

/* Article Card Link */
.article-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-light);
    margin-top: auto;
    transition: gap var(--transition-fast);
}

.article-card-link:hover {
    gap: 0.75rem;
}

/* ========================================
   ARTICLE PAGE
   ======================================== */

/* Article Header */
.article-header {
    padding: 10rem 0 3rem;
    text-align: center;
}

.article-header .back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    transition: color var(--transition-fast);
}

.article-header .back-link:hover {
    color: var(--primary-light);
}

.article-header h1 {
    font-family: var(--font-primary);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    max-width: 800px;
    margin: 0 auto 1.5rem;
    line-height: 1.2;
}

.article-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.article-meta .category-badge {
    padding: 0.3rem 0.8rem;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    color: var(--primary-light);
    font-weight: 500;
}

/* Article Content */
.article-content {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 var(--container-padding) 4rem;
}

.article-content h2 {
    font-family: var(--font-primary);
    font-size: 1.6rem;
    font-weight: 700;
    margin: 3rem 0 1.25rem;
    color: var(--text-primary);
}

.article-content h3 {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.article-content p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.article-content p:first-of-type {
    font-size: 1.15rem;
    color: var(--text-primary);
    font-weight: 500;
}

.article-content ul,
.article-content ol {
    margin: 1rem 0 1.5rem 1.5rem;
    color: var(--text-secondary);
}

.article-content li {
    margin-bottom: 0.6rem;
    line-height: 1.7;
}

.article-content strong {
    color: var(--text-primary);
    font-weight: 600;
}

.article-content a {
    color: var(--primary-light);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-content a:hover {
    color: var(--secondary);
}

.article-content blockquote {
    border-left: 3px solid var(--primary);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    background: rgba(99, 102, 241, 0.05);
    border-radius: 0 12px 12px 0;
}

.article-content blockquote p {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 0;
}

.article-content code {
    background: rgba(255, 255, 255, 0.08);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-size: 0.9em;
    color: var(--secondary);
}

.article-content pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.article-content pre code {
    background: none;
    padding: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* FAQ Section */
.article-faq {
    margin: 3rem 0;
}

.article-faq h2 {
    margin-top: 0;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.faq-item summary {
    padding: 1rem 1.25rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--text-muted);
    transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
    transform: rotate(180deg);
}

.faq-item summary:hover {
    background: rgba(255, 255, 255, 0.03);
}

.faq-item .faq-answer {
    padding: 0 1.25rem 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Related Articles */
.related-articles {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border-color);
}

.related-articles h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.related-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    transition: var(--transition-base);
}

.related-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.related-card .related-category {
    font-size: 0.75rem;
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.related-card h3 {
    font-family: var(--font-primary);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.related-card h3 a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.related-card h3 a:hover {
    color: var(--primary-light);
}

.related-card .related-excerpt {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }

    .article-meta {
        flex-direction: column;
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .blog-filters {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.4rem 1rem;
        font-size: 0.8rem;
    }
}