/* =========================================
   Blog index + post styles
   ========================================= */

/* ===== Blog Index ===== */
.blog-index-page {
    padding: var(--space-16) 0 var(--space-20);
}

.blog-posts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    margin-top: var(--space-12);
}

.blog-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    border: 1px solid var(--color-gray-100);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.blog-card-image {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--color-gray-100);
}
.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.blog-card:hover .blog-card-image img {
    transform: scale(1.06);
}

.blog-card-body {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    gap: var(--space-3);
    font-size: 0.8125rem;
    color: var(--color-gray-500);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.blog-card-meta .author {
    color: var(--color-primary);
    font-weight: 600;
}

.blog-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    line-height: 1.3;
    margin-bottom: var(--space-3);
    color: var(--color-gray-900);
}
.blog-card h3 a {
    color: inherit;
    text-decoration: none;
}
.blog-card h3 a:hover {
    color: var(--color-primary);
}

.blog-card-excerpt {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    line-height: 1.6;
    margin-bottom: var(--space-4);
    flex: 1;
}

.blog-card-readmore {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: all var(--transition);
    margin-top: auto;
}
.blog-card-readmore:hover {
    color: var(--color-warm);
    gap: var(--space-3);
}

@media (max-width: 900px) {
    .blog-posts-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
    .blog-posts-grid { grid-template-columns: 1fr; }
}

/* ===== Blog Post (single) ===== */
.blog-post-page {
    padding-bottom: var(--space-20);
}

.blog-post-hero {
    background: linear-gradient(135deg, var(--color-primary-bg), var(--color-white));
    padding: var(--space-16) 0 var(--space-12);
}

.blog-breadcrumb {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-bottom: var(--space-6);
    display: flex;
    gap: var(--space-2);
    align-items: center;
}
.blog-breadcrumb a {
    color: var(--color-primary);
}
.blog-breadcrumb .sep { color: var(--color-gray-400); }

.blog-post-hero h1 {
    max-width: 820px;
    font-size: clamp(2rem, 4.5vw, 3rem);
    line-height: 1.2;
    margin-bottom: var(--space-6);
}

.blog-post-meta {
    display: flex;
    gap: var(--space-6);
    align-items: center;
    flex-wrap: wrap;
    font-size: 0.875rem;
    color: var(--color-gray-600);
}
.blog-post-meta .author {
    font-weight: 600;
    color: var(--color-primary);
}

.blog-post-featured-img {
    margin-top: var(--space-12);
    border-radius: var(--radius-lg);
    overflow: hidden;
    max-height: 500px;
    box-shadow: var(--shadow-xl);
}
.blog-post-featured-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-post-content {
    max-width: 760px;
    margin: var(--space-12) auto 0;
    padding: 0 var(--container-padding);
}

.blog-post-content p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--color-gray-700);
    margin-bottom: var(--space-6);
}

.blog-post-content h2 {
    font-family: var(--font-display);
    font-size: 1.875rem;
    margin: var(--space-12) 0 var(--space-4);
    color: var(--color-gray-900);
}

.blog-post-content h3 {
    font-family: var(--font-display);
    font-size: 1.375rem;
    margin: var(--space-8) 0 var(--space-3);
    color: var(--color-primary);
}

.blog-post-content img {
    width: 100%;
    border-radius: var(--radius-md);
    margin: var(--space-8) 0 var(--space-3);
    box-shadow: var(--shadow-md);
}

.blog-post-content figure {
    margin: var(--space-8) 0;
}
.blog-post-content figure img {
    margin: 0 0 var(--space-3);
}
.blog-post-content figcaption {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    font-style: italic;
    text-align: center;
}

.blog-post-content strong {
    color: var(--color-gray-900);
    font-weight: 700;
}

.blog-post-content ul {
    margin: 0 0 var(--space-6) 0;
    padding-left: var(--space-6);
}
.blog-post-content ul li {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--color-gray-700);
    margin-bottom: var(--space-3);
}

.blog-post-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding: var(--space-2) var(--space-6);
    margin: var(--space-8) 0;
    background: var(--color-gray-50);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.blog-post-content blockquote p {
    font-style: italic;
    margin: 0;
}

.blog-post-content .conclusion {
    background: linear-gradient(135deg, var(--color-primary-bg), var(--color-white));
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    margin: var(--space-12) 0;
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-gray-800);
    border-left: 4px solid var(--color-primary);
}
.blog-post-content .conclusion strong { color: var(--color-primary); }

/* ===== Blog Footer (Related) ===== */
.blog-post-footer {
    max-width: 760px;
    margin: var(--space-16) auto 0;
    padding: var(--space-12) var(--container-padding) 0;
    border-top: 1px solid var(--color-gray-200);
}

.related-posts h3 {
    text-align: center;
    margin-bottom: var(--space-8);
    font-family: var(--font-display);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

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

/* ============================================================
   BLOG POST (trang bài viết chi tiết) — editorial
   ============================================================ */
.post { padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(3rem, 7vw, 6rem); background: #fff; }
.post-container { max-width: 760px; }

.post-back {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-8);
    transition: color .2s ease;
}
.post-back:hover { color: var(--color-accent); }

.post-meta-top {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.85rem;
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-5);
}
.post-author { color: var(--color-primary); font-weight: 600; }
.post-dot { opacity: 0.5; }

.post-title {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(1.9rem, 4vw, 3rem);
    line-height: 1.12;
    letter-spacing: -0.02em;
    color: var(--color-gray-900);
    margin-bottom: var(--space-5);
}
.post-excerpt {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    line-height: 1.5;
    color: var(--color-gray-600);
}
.post-divider {
    height: 1px;
    background: var(--color-gray-200);
    margin: clamp(2rem, 4vw, 3rem) 0;
}

.post-body { font-family: var(--font-body); }
.post-body p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-gray-700);
    margin-bottom: var(--space-6);
}
.post-body h2 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.4rem, 2.6vw, 1.9rem);
    line-height: 1.25;
    color: var(--color-gray-900);
    margin: clamp(2.2rem, 4vw, 3rem) 0 var(--space-5);
}
.post-body ul.post-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-6);
}
.post-body ul.post-list li {
    position: relative;
    padding-left: var(--space-6);
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--color-gray-700);
    margin-bottom: var(--space-3);
}
.post-body ul.post-list li::before {
    content: "";
    position: absolute;
    left: 0; top: 0.7em;
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--color-accent);
}
.post-body figure {
    margin: clamp(2rem, 4vw, 2.8rem) 0;
}
.post-body figure img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    display: block;
    box-shadow: 0 24px 60px -38px rgba(0,0,0,0.4);
}
.post-body figure figcaption {
    margin-top: var(--space-3);
    font-size: 0.88rem;
    color: var(--color-gray-500);
    font-style: italic;
    text-align: center;
}