/* Blog — matches homepage section patterns */

body.blog-post {
    background: #000;
    height: 100dvh;
    overflow: hidden;
}

body.blog-post #bg-video,
body.blog-post::before,
body.blog-post::after {
    display: none;
}

body.blog-post .blog-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: #000;
    padding-bottom: 0;
}

.blog-container {
    min-height: auto;
    justify-content: flex-start;
    padding-bottom: 0;
}

.nav-link--active {
    color: var(--text-primary);
}

/* Hero zone (over video) */

.blog-hero {
    padding: 2rem 0 3rem;
    max-width: 900px;
}

.blog-hero--post {
    max-width: 820px;
    padding-bottom: 2.5rem;
}

.blog-hero-heading {
    font-size: clamp(3.5rem, 8vw, 7rem);
    line-height: 1;
    font-weight: 600;
    letter-spacing: -0.04em;
    color: var(--text-primary);
}

.blog-hero-heading--post {
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.05;
    margin-top: 0.5rem;
}

.blog-hero-date {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.blog-hero-excerpt {
    margin-top: 1.25rem;
    max-width: 560px;
    font-size: 1rem;
    line-height: 1.7;
    font-weight: 300;
    color: var(--text-secondary);
}

.blog-hero-tags {
    margin-top: 1.25rem;
}

.blog-back-link {
    display: inline-block;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    text-decoration: none;
    margin-bottom: 3.25rem;
    transition: color 0.2s var(--ease);
}

.blog-back-link:hover {
    color: var(--text-primary);
}

/* Content section (solid black, like about-section) */

.blog-page-section {
    position: relative;
    z-index: 1;
    flex: 1;
    background: #000;
    padding: 5rem;
    display: flex;
    align-items: stretch;
    min-height: 0;
}

.blog-page-section--post {
    padding-top: 0;
    flex-direction: column;
}

body.blog-post .blog-page-section--post {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: var(--blog-post-top, 5.5rem);
    flex: none;
    box-sizing: border-box;
    padding: 2rem 5rem 1.5rem;
    overflow: hidden;
}

body.blog-post .blog-article {
    height: 100%;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

body.blog-post .blog-article::-webkit-scrollbar {
    display: none;
}

/* Custom screen-edge scrollbar (blog post) */

.blog-scroll-rail {
    position: fixed;
    top: var(--blog-post-top, 5.5rem);
    right: 0;
    bottom: 0;
    width: 12px;
    z-index: 110;
    display: flex;
    justify-content: center;
    padding: 10px 3px;
    box-sizing: border-box;
    opacity: 1;
    transition: opacity 0.25s var(--ease);
}

.blog-scroll-rail.is-hidden {
    opacity: 0;
    pointer-events: none;
}

.blog-scroll-track {
    position: relative;
    width: 3px;
    height: 100%;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
}

.blog-scroll-thumb {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    min-height: 28px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    cursor: grab;
    transition: background 0.2s var(--ease), width 0.2s var(--ease), left 0.2s var(--ease);
}

.blog-scroll-thumb:hover,
.blog-scroll-rail.is-dragging .blog-scroll-thumb {
    background: rgba(255, 255, 255, 0.32);
    width: 4px;
    left: -0.5px;
}

.blog-scroll-rail.is-dragging .blog-scroll-thumb {
    cursor: grabbing;
}

.blog-inner {
    width: 100%;
    max-width: 1800px;
    margin: 0 auto;
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.blog-left {
    position: sticky;
    top: 5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.blog-intro {
    color: var(--text-secondary);
    font-size: 1.2rem;
    line-height: 1.85;
    font-weight: 300;
    max-width: 420px;
}

.blog-intro strong {
    color: #fff;
    font-weight: 500;
}

.blog-rss-link {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.2s var(--ease);
}

.blog-rss-link:hover {
    color: var(--text-primary);
}

.blog-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding-top: 0.25rem;
}

/* Post rows (like zsm-service-row) */

.blog-post-rows {
    display: flex;
    flex-direction: column;
}

.blog-post-row {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s var(--ease);
}

.blog-post-row:first-child {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-post-row:hover .blog-row-arrow {
    stroke: rgba(255, 255, 255, 0.6);
    transform: translateX(3px);
}

.blog-post-row:hover .blog-row-title {
    color: #fff;
}

.blog-row-thumb {
    width: 56px;
    height: 56px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.blog-row-date {
    width: 5.5rem;
    flex-shrink: 0;
    font-size: 0.7rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.25);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding-top: 0.15rem;
    font-variant-numeric: tabular-nums;
}

.blog-row-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    min-width: 0;
}

.blog-row-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    line-height: 1.35;
    transition: color 0.3s var(--ease);
}

.blog-row-desc {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    line-height: 1.65;
    font-weight: 300;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-row-tags {
    margin-top: 0.5rem;
}

.blog-row-tags .about-tag {
    padding: 0.35rem 0.85rem;
    font-size: 0.7rem;
    pointer-events: none;
}

a.about-tag {
    text-decoration: none;
}

.blog-row-arrow {
    width: 16px;
    height: 16px;
    stroke: rgba(255, 255, 255, 0.2);
    fill: none;
    stroke-width: 1.5;
    flex-shrink: 0;
    margin-top: 0.2rem;
    transition: stroke 0.3s var(--ease), transform 0.3s var(--ease);
}

/* Pagination */

.blog-pagination {
    margin-top: 0.5rem;
}

.blog-pagination-pills {
    display: inline-flex;
    align-items: center;
}

.blog-pagination-info {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    padding: 0.5rem 1rem;
    font-variant-numeric: tabular-nums;
}

/* Empty state */

.blog-empty {
    padding: 2rem 0;
    color: var(--text-tertiary);
    font-size: 0.9375rem;
    font-weight: 300;
}

.blog-empty .btn {
    margin-top: 1.25rem;
}

/* Single post article */

.blog-article-header {
    margin-bottom: 2rem;
}

.blog-article-date {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.blog-article-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 600;
    line-height: 1.05;
    letter-spacing: -0.04em;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.blog-article-excerpt {
    font-size: 1rem;
    line-height: 1.7;
    font-weight: 300;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.blog-article-tags {
    margin-top: 1rem;
}

.blog-article {
    flex: 1;
    width: 100%;
    max-width: 680px;
    margin: 0 auto;
    min-height: 100%;
}

/* Sidebar — desktop only (TOC + categories) */

.blog-sidebar {
    display: none;
}

@media (min-width: 1200px) {
    .blog-sidebar {
        display: flex;
        flex-direction: column;
        gap: 2rem;
        position: fixed;
        width: 200px;
        z-index: 90;
        padding-right: 1rem;
        border-right: 1px solid rgba(255, 255, 255, 0.08);
        max-height: calc(100dvh - var(--blog-post-top, 5.5rem) - 1.5rem);
        overflow-y: auto;
    }

    .blog-article-tags {
        display: none;
    }
}

.blog-sidebar-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.35);
    margin-bottom: 1rem;
}

.blog-sidebar-categories {
    padding-top: 0.25rem;
}

.blog-sidebar-tags {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
}

.blog-sidebar-tags .about-tag {
    padding: 0.35rem 0.85rem;
    font-size: 0.75rem;
}

.blog-toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.blog-toc-item--h3 {
    padding-left: 0.75rem;
}

.blog-toc-item--h4 {
    padding-left: 1.5rem;
}

.blog-toc-link {
    display: block;
    font-size: 0.8125rem;
    line-height: 1.45;
    font-weight: 400;
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.2s var(--ease);
}

.blog-toc-link:hover,
.blog-toc-link.is-active {
    color: var(--text-primary);
}

.blog-toc-link.is-active {
    font-weight: 500;
}

.blog-article-divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin: 2rem 0;
}

.blog-article-featured {
    margin: 0 0 2.5rem;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-article-featured img {
    width: 100%;
    display: block;
}

.blog-post-body {
    font-size: 1.0625rem;
    line-height: 1.85;
    font-weight: 300;
    color: var(--text-secondary);
}

.blog-post-body h1,
.blog-post-body h2,
.blog-post-body h3,
.blog-post-body h4 {
    color: var(--text-primary);
    font-weight: 500;
    letter-spacing: -0.02em;
    margin: 2em 0 0.75em;
    line-height: 1.25;
    scroll-margin-top: 6rem;
}

.blog-post-body h2 { font-size: 1.5rem; }
.blog-post-body h3 { font-size: 1.25rem; }

.blog-post-body p {
    margin-bottom: 1.25em;
}

.blog-post-body a {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(255, 255, 255, 0.25);
    transition: text-decoration-color 0.2s var(--ease);
}

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

.blog-post-body ul,
.blog-post-body ol {
    margin: 0 0 1.25em 1.25em;
}

.blog-post-body li {
    margin-bottom: 0.4em;
}

.blog-post-body blockquote {
    margin: 1.5em 0;
    padding: 0 0 0 1.25rem;
    border-left: 2px solid rgba(255, 255, 255, 0.15);
    color: var(--text-tertiary);
    font-style: italic;
}

.blog-post-body pre {
    margin: 1.5em 0;
    padding: 1rem 1.125rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    overflow-x: auto;
    font-size: 0.875rem;
    line-height: 1.6;
}

.blog-post-body code {
    font-size: 0.9em;
    background: rgba(255, 255, 255, 0.06);
    padding: 0.15em 0.4em;
    border-radius: 4px;
}

.blog-post-body pre code {
    background: none;
    padding: 0;
}

.blog-post-body img {
    max-width: 100%;
    border-radius: 10px;
    margin: 1.5em 0;
}

.blog-post-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 0.9375rem;
}

.blog-post-body th,
.blog-post-body td {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.625rem 0.875rem;
    text-align: left;
}

.blog-post-body th {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Responsive */

@media (max-width: 1024px) {
    .blog-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .blog-left {
        position: static;
        gap: 1rem;
    }

    .blog-intro {
        max-width: 560px;
    }

}

@media (max-width: 768px) {
    .blog-hero {
        padding: 1.25rem 0 2rem;
    }

    .blog-hero-heading {
        font-size: clamp(3rem, 12vw, 4rem);
    }

    .blog-hero-heading--post,
    .blog-article-title {
        font-size: clamp(1.75rem, 7vw, 2.5rem);
    }

    .blog-page-section {
        padding: 3rem 1.25rem;
    }

    body.blog-post .blog-page-section--post {
        padding: 1.5rem 1.25rem 1rem;
    }

    .blog-post-row {
        gap: 1rem;
        padding: 1.25rem 0;
    }

    .blog-row-date {
        width: 4.25rem;
        font-size: 0.65rem;
    }

    .blog-row-thumb {
        width: 48px;
        height: 48px;
    }

    .blog-intro {
        font-size: 1rem;
        line-height: 1.8;
    }

    .blog-pagination-pills {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .blog-page-section {
        padding: 2rem 1rem;
    }

    body.blog-post .blog-page-section--post {
        padding: 1.25rem 1rem 1rem;
    }

    .blog-hero-heading {
        font-size: clamp(2.5rem, 10vw, 3.5rem);
    }

    .blog-row-tags .about-tag {
        padding: 0.3rem 0.7rem;
        font-size: 0.65rem;
    }
}