/* ==========================================================================
   BLOG - Listing page, post page, and shared blog component styles
   ========================================================================== */

/* ==========================================================================
   1. BLOG HERO - Compact hero for the blog listing page
   ========================================================================== */
.blog-hero {
    position: relative;
    padding-top: 72px;
    min-height: 45vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
}

.blog-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.blog-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 40%;
}

.blog-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 20, 0.7) 0%,
        rgba(10, 10, 20, 0.85) 60%,
        var(--color-bg) 100%
    );
    z-index: 1;
}

.blog-hero-content {
    position: relative;
    z-index: 2;
    padding-bottom: 3rem;
}

.blog-hero-breadcrumb {
    padding: 1rem 0 1.25rem;
    font-size: 0.82rem;
}
.blog-hero-breadcrumb a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition);
}
.blog-hero-breadcrumb a:hover {
    color: var(--color-accent-light);
}
.blog-hero-breadcrumb .sep {
    margin: 0 0.5rem;
    color: rgba(255, 255, 255, 0.3);
}
.blog-hero-breadcrumb .current {
    color: var(--color-text);
}

.blog-hero-content h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 0.75rem;
}

.blog-hero-sub {
    font-size: clamp(0.95rem, 1.6vw, 1.1rem);
    color: var(--color-text-muted);
    line-height: 1.7;
    max-width: 560px;
}


/* ==========================================================================
   2. CATEGORY FILTER BAR - Sticky pill filter row
   ========================================================================== */
.blog-filters-section {
    position: sticky;
    top: 72px;
    z-index: 100;
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 0.85rem 0;
}

.blog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.blog-filter-btn {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.45rem 1rem;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.blog-filter-btn:hover {
    border-color: var(--color-border-hover);
    color: var(--color-text);
}
.blog-filter-btn.active,
.blog-filter-btn[aria-pressed="true"] {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}


/* ==========================================================================
   3. BLOG CARD GRID - Responsive post card layout
   ========================================================================== */
.blog-grid-section {
    padding: var(--section-pad) 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 640px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 960px) {
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* --- Blog Card --- */
.blog-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}
.blog-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

/* Card image */
.blog-card-img {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}
.blog-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}
.blog-card:hover .blog-card-img img {
    transform: scale(1.06);
}

/* Card body */
.blog-card-body {
    padding: 1.25rem 1.25rem 0.75rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

/* Category badge */
.blog-card-category {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-accent-light);
    background: var(--color-accent-glow);
    padding: 0.25rem 0.65rem;
    border-radius: 999px;
    margin-bottom: 0.75rem;
    width: fit-content;
}

/* Meta (date) */
.blog-card-meta {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

/* Title */
.blog-card-body h2 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text-heading);
    margin-bottom: 0.5rem;
    transition: color var(--transition);
}
.blog-card:hover .blog-card-body h2 {
    color: var(--color-accent-light);
}

/* Excerpt */
.blog-card-excerpt {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card footer */
.blog-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1.25rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-top: auto;
}
.blog-card-author {
    font-weight: 600;
    color: var(--color-text);
}
.blog-card-footer .dot {
    margin: 0 0.4rem;
    opacity: 0.4;
}
.blog-card-footer .blog-card-arrow {
    display: inline-flex;
    align-items: center;
    color: var(--color-accent-light);
    font-size: 1rem;
    transition: transform var(--transition);
}
.blog-card:hover .blog-card-arrow {
    transform: translateX(4px);
}


/* ==========================================================================
   4. BLOG POST HERO - Full-width hero for individual articles
   ========================================================================== */
.blog-post-hero {
    position: relative;
    padding-top: 72px;
    min-height: 55vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
}

.blog-post-hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.blog-post-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.blog-post-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 20, 0.4) 0%,
        rgba(10, 10, 20, 0.75) 50%,
        var(--color-bg) 100%
    );
    z-index: 1;
}

.blog-post-hero-content {
    position: relative;
    z-index: 2;
    padding-bottom: 3rem;
    max-width: 800px;
}

/* Post hero breadcrumb */
.blog-post-breadcrumb {
    padding: 1rem 0 1.25rem;
    font-size: 0.82rem;
}
.blog-post-breadcrumb a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition);
}
.blog-post-breadcrumb a:hover {
    color: var(--color-accent-light);
}
.blog-post-breadcrumb .sep {
    margin: 0 0.5rem;
    color: rgba(255, 255, 255, 0.3);
}
.blog-post-breadcrumb .current {
    color: var(--color-text);
}

/* Post category badge in hero */
.blog-post-category {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-accent-light);
    background: var(--color-accent-glow);
    padding: 0.3rem 0.85rem;
    border-radius: 999px;
    margin-bottom: 1rem;
}

/* Post hero title */
.blog-post-hero-content h1 {
    font-size: clamp(1.75rem, 4.5vw, 2.75rem);
    letter-spacing: -0.03em;
    line-height: 1.12;
    margin-bottom: 1.25rem;
}

/* Post hero meta row */
.blog-post-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}
.blog-post-meta .meta-sep {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-text-muted);
    opacity: 0.5;
    flex-shrink: 0;
}
.blog-post-meta .meta-author {
    font-weight: 600;
    color: var(--color-text);
}


/* ==========================================================================
   5. ARTICLE BODY TYPOGRAPHY
   ========================================================================== */
.blog-article {
    padding: var(--section-pad) 0;
    max-width: 720px;
    margin: 0 auto;
}

.blog-article h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-heading);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.blog-article h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text-heading);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.blog-article p {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--color-text);
    margin-bottom: 1.25rem;
}

.blog-article ul,
.blog-article ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
}
.blog-article ul {
    list-style: disc;
}
.blog-article ol {
    list-style: decimal;
}
.blog-article li {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--color-text);
    margin-bottom: 0.4rem;
}

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

.blog-article strong {
    color: var(--color-text-heading);
    font-weight: 700;
}

/* Blockquote */
.blog-article blockquote {
    border-left: 4px solid var(--color-accent);
    background: var(--color-accent-glow);
    padding: 1.25rem 1.5rem;
    margin: 1.75rem 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--color-text);
}
.blog-article blockquote p {
    margin-bottom: 0;
}

/* Images */
.blog-article img {
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    margin: 1.75rem 0;
    width: 100%;
    height: auto;
}

.blog-article figure {
    margin: 1.75rem 0;
}
.blog-article figure img {
    margin: 0 0 0.5rem;
}
.blog-article figcaption {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    text-align: center;
    line-height: 1.5;
}

/* Inline code */
.blog-article code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.88em;
    background: var(--color-bg-alt);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    color: var(--color-text);
}

/* Code blocks */
.blog-article pre {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    margin: 1.5rem 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.blog-article pre code {
    background: none;
    padding: 0;
    font-size: 0.85rem;
    line-height: 1.7;
}

/* Horizontal rule */
.blog-article hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 2.5rem 0;
}


/* ==========================================================================
   6. AUTHOR BOX
   ========================================================================== */
.blog-author-box {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-top: 3rem;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.blog-author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}
.blog-author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-author-info {
    flex: 1;
    min-width: 0;
}
.blog-author-name {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-heading);
    margin-bottom: 0.25rem;
}
.blog-author-bio {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}


/* ==========================================================================
   7. SOCIAL SHARE BUTTONS
   ========================================================================== */
.blog-share {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 2rem;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.blog-share-label {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-right: 0.25rem;
}

.blog-share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-bg-card);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition);
    font-size: 1rem;
    text-decoration: none;
}
.blog-share-btn:hover {
    background: var(--color-accent-glow);
    border-color: var(--color-border-hover);
    color: var(--color-accent-light);
}
.blog-share-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}


/* ==========================================================================
   8. RELATED POSTS SECTION
   ========================================================================== */
.blog-related {
    background: var(--color-bg-alt);
    padding: var(--section-pad) 0;
}

.blog-related-inner {
    max-width: 960px;
    margin: 0 auto;
}

.blog-related-heading {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    font-weight: 700;
    color: var(--color-text-heading);
    text-align: center;
    margin-bottom: 2.5rem;
    letter-spacing: -0.02em;
}

.blog-related-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 640px) {
    .blog-related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (min-width: 960px) {
    .blog-related-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}


/* ==========================================================================
   9. LOAD MORE BUTTON
   ========================================================================== */
.blog-load-more {
    display: flex;
    justify-content: center;
    padding-top: 2.5rem;
}

.blog-load-more .btn {
    min-width: 180px;
}


/* ==========================================================================
   10. NO RESULTS MESSAGE
   ========================================================================== */
.blog-no-results {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 1.6;
}
.blog-no-results p {
    margin-bottom: 0.5rem;
}
.blog-no-results strong {
    color: var(--color-text);
    font-weight: 600;
}


/* ==========================================================================
   11. TABLE OF CONTENTS (Sidebar / Inline)
   ========================================================================== */
.blog-toc {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    margin-bottom: 2rem;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.blog-toc-title {
    font-family: var(--font-heading);
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--color-text-heading);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.blog-toc-list {
    list-style: none;
    padding: 0;
}
.blog-toc-list li {
    margin-bottom: 0.35rem;
}
.blog-toc-list a {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition);
    display: block;
    padding: 0.25rem 0;
    line-height: 1.4;
}
.blog-toc-list a:hover,
.blog-toc-list a.active {
    color: var(--color-accent-light);
}
.blog-toc-list .toc-sub {
    padding-left: 1rem;
}

/* Sidebar variant for desktop layout */
.blog-content-with-toc {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: calc(720px + 280px + 2rem);
    margin: 0 auto;
}
@media (min-width: 1080px) {
    .blog-content-with-toc {
        grid-template-columns: 1fr 240px;
    }
}

.blog-toc-sidebar {
    display: none;
}
@media (min-width: 1080px) {
    .blog-toc-sidebar {
        display: block;
    }
    .blog-toc-sidebar .blog-toc {
        position: sticky;
        top: 100px;
        margin: 0;
    }
}


/* ==========================================================================
   12. RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* Mobile: < 480px */
@media (max-width: 480px) {
    .blog-hero {
        min-height: 35vh;
    }
    .blog-hero-content {
        padding-bottom: 2rem;
    }
    .blog-hero-content h1 {
        font-size: 1.75rem;
    }

    .blog-filters {
        gap: 0.4rem;
    }
    .blog-filter-btn {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }

    .blog-card-body {
        padding: 1rem 1rem 0.65rem;
    }
    .blog-card-body h2 {
        font-size: 1rem;
    }
    .blog-card-footer {
        padding: 0.75rem 1rem;
        font-size: 0.72rem;
    }

    .blog-post-hero {
        min-height: 40vh;
    }
    .blog-post-hero-content h1 {
        font-size: 1.6rem;
    }
    .blog-post-meta {
        font-size: 0.78rem;
    }

    .blog-article h2 {
        font-size: 1.3rem;
    }
    .blog-article h3 {
        font-size: 1.1rem;
    }
    .blog-article p,
    .blog-article li {
        font-size: 0.98rem;
    }

    .blog-author-box {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 1.25rem;
    }

    .blog-share {
        flex-wrap: wrap;
    }

    .blog-toc {
        padding: 1rem 1.25rem;
    }
}

/* Tablet: 481px - 768px */
@media (min-width: 481px) and (max-width: 768px) {
    .blog-hero {
        min-height: 38vh;
    }

    .blog-post-hero {
        min-height: 45vh;
    }
}

/* Desktop: 960px+ */
@media (min-width: 960px) {
    .blog-hero-content h1 {
        font-size: 3rem;
    }

    .blog-post-hero-content h1 {
        font-size: 2.75rem;
    }

    .blog-card-body h2 {
        font-size: 1.15rem;
    }
}