/* ═══════════════════════════════════════════════
   BLOG-INDEX.CSS
   Blog listing page only: latest articles, category
   filters, and the article grid. Homepage cards keep
   using home.css / article.css.
   ═══════════════════════════════════════════════ */

.latest-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3.5rem 4rem 1rem;
}

.latest-heading {
    font-family: var(--font-body);
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 0 0 0.5rem;
}

.latest-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 1.75rem;
}

.latest-primary {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    color: #fff;
    min-height: 380px;
    display: flex;
    align-items: flex-end;
    text-decoration: none;
}

.latest-primary img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.latest-primary::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.latest-primary-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
}

.latest-primary .card-tag {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.latest-primary h2 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    line-height: 1.25;
    margin: 0.75rem 0 0.4rem;
    color: #fff;
}

.latest-primary .card-date {
    color: #fff;
}

.latest-secondary {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.latest-secondary-item {
    display: flex;
    gap: 1rem;
    text-decoration: none;
    color: inherit;
}

.latest-secondary-item img {
    width: 200px;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.latest-secondary-item h3 {
    font-family: var(--font-display);
    font-size: 1.02rem;
    color: var(--text);
    line-height: 1.3;
    margin: 0.35rem 0 0;
    font-weight: 400;
}

.latest-secondary p {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.92rem;
    line-height: 1.55;
    color: var(--muted);
    margin: 0 0 0.75rem;
}

.articles-section-header {
    max-width: 1400px;
    padding: 2.0rem 4rem 0;
    margin: 0 auto;
    margin-top: 2rem;
    border-top: 1.0px solid var(--border);
    gap: 0.6rem;
}

.articles-intro {
    font-family: var(--font-body);
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0 0 2rem;
}

.card-tag {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.2rem 0.7rem;
}

.card-date {
    display: block;
    font-family: var(--font-body);
    font-size: 0.78rem;
    color: var(--muted);
    margin-top: 0.4rem;
}

.blog-filters {
    max-width: 1400px;
    margin: 0.5rem auto 0;
    padding: 0.0rem 4rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.blog-filter {
    font-family: var(--font-body);
    font-size: 0.85rem;
    border: 1px solid var(--border);
    color: var(--muted);
    background: transparent;
    padding: 0.45rem 1.1rem;
    border-radius: 999px;
    cursor: pointer;
}

.blog-filter[aria-pressed="true"] {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}

.blog-grid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2.5rem 4rem 6rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.article-header .card-tag {
    margin-bottom: 1.25rem;
}

.blog-grid .blog-card,
.related-posts-grid .blog-card {
    display: none;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    background: none;
    border: none;
    border-radius: 0;
    margin-bottom: 0;
    overflow: visible;
    align-items: stretch;
}

.blog-grid .blog-card.is-visible,
.related-posts-grid .blog-card {
    display: flex;
}

.blog-grid .blog-card:hover,
.related-posts-grid .blog-card:hover {
    border-color: transparent;
    transform: none;
    box-shadow: none;
}

.blog-grid .blog-card-image,
.related-posts-grid .blog-card-image {
    width: 100%;
    height: auto;
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    margin-bottom: 1rem;
}

.blog-grid .blog-card-image img,
.related-posts-grid .blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.blog-grid .blog-card:hover .blog-card-image img,
.related-posts-grid .blog-card:hover .blog-card-image img {
    transform: none;
}

.blog-grid .blog-card-content,
.related-posts-grid .blog-card-content {
    padding: 0;
    display: block;
}

.blog-grid .blog-card-content h2,
.related-posts-grid .blog-card-content h2 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    line-height: 1.3;
    color: var(--text);
    margin: 0.7rem 0 0.5rem;
}

.blog-grid .blog-card-content h2 a,
.related-posts-grid .blog-card-content h2 a {
    color: inherit;
    text-decoration: none;
    font-size: inherit;
    font-weight: inherit;
}

.blog-grid .blog-card-content p,
.related-posts-grid .blog-card-content p {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.92rem;
    line-height: 1.55;
    color: var(--muted);
    margin: 0 0 0.75rem;
}

.blog-grid .card-date,
.related-posts-grid .card-date {
    display: inline;
    margin-left: 0.6rem;
}

.blog-grid .read-more,
.related-posts-grid .read-more {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
}

.blog-empty {
    display: none;
    font-family: var(--font-body);
    color: var(--muted);
    text-align: center;
    padding: 3rem 0;
    grid-column: 1 / -1;
}

.blog-empty.is-visible {
    display: block;
}

@media (max-width: 860px) {
    .latest-section,
    .blog-filters,
    .blog-grid {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

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

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

@media (max-width: 560px) {
    .blog-grid,
    .related-posts-grid {
        grid-template-columns: 1fr;
    }
}