/* blog.css — TarkIQ Blog Stylesheet
   ──────────────────────────────────────────────────────────────────
   Shared across all blog pages. Loaded after ../style/styles.css
   which provides all design tokens, header, footer, blobs, and
   global component classes (.liquid-glass-card, .cta-button, etc.)
   ────────────────────────────────────────────────────────────────── */
/* Main Content */
.main-container {
    flex: 1;
    display: block;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
}

/* ─── Article Hero ──────────────────────────────────────────────── */
.article-hero {
    padding: 8rem 2rem 3rem;
    text-align: center;
}

.article-hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.back-to-blog {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    text-decoration: none;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.75rem;
    transition: color 0.3s ease, transform 0.3s ease;
    align-self: flex-start;
}

.back-to-blog:hover {
    color: var(--primary);
    transform: translateX(-3px);
}

.article-tag {
    display: inline-block;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 1.25rem;
}

.article-hero h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    background: var(--header-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.meta-sep {
    opacity: 0.35;
}

@media (max-width: 1024px) {
    .article-hero {
        padding: 7.5rem 1.5rem 2.5rem;
    }

    .article-hero h1 {
        font-size: 2.25rem;
    }

    .approach-section {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .article-hero {
        padding: 7rem 1.5rem 2rem;
    }

    .article-hero h1 {
        font-size: 1.9rem;
    }

    .approach-section {
        padding: 1.5rem 1rem;
    }
}

/* ─── Article Body Container ─────────────────────────────────────── */
.blog-post {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.5rem 2rem 6rem;
}

/* ─── Prose Typography ───────────────────────────────────────────── */
.blog-post h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--text);
    margin-top: 3.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--glass-border);
}

.blog-post h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--secondary);
    margin-top: 2.25rem;
    margin-bottom: 0.75rem;
}

.blog-post p {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text-muted-light);
    margin-bottom: 1.35rem;
}

.blog-post strong {
    font-weight: 600;
    color: var(--text);
}

.blog-post em {
    font-style: italic;
    color: var(--text-muted-light);
}

.blog-post ul,
.blog-post ol {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text-muted-light);
    margin-bottom: 1.35rem;
    padding-left: 1.5rem;
}

.blog-post li {
    margin-bottom: 0.6rem;
}

.blog-post li strong {
    color: var(--text);
}

.blog-post article a {
    color: var(--secondary);
    font-weight: 600;
    background: var(--highlight-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: underline;
    text-decoration-color: var(--primary);
    text-underline-offset: 4px;
    transition: text-decoration-color 0.25s ease, opacity 0.25s ease;
}

.blog-post article a:hover {
    text-decoration-color: var(--secondary);
    opacity: 0.9;
}

/* ─── Table Wrapper (Approach Section / Liquid Glass Card) ───────── */
.approach-section {
    padding: 2.5rem;
    border-radius: var(--radius-card);
    margin: 3rem 0;
    overflow-x: auto;
}

.approach-section table {
    width: 100%;
    border-collapse: collapse;
    background: transparent;
    border: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.95rem;
}

.approach-section th {
    background: rgba(59, 130, 246, 0.07);
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 0.9rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.approach-section td {
    padding: 0.85rem 1rem;
    color: var(--text-muted-light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    vertical-align: top;
    line-height: 1.55;
}

.approach-section tr:last-child td {
    border-bottom: none;
}

.approach-section tbody tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* ─── Code Blocks ────────────────────────────────────────────────── */
.blog-post pre {
    background: rgba(2, 6, 23, 0.8);
    border: 1px solid var(--glass-border);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    overflow-x: auto;
    margin: 2rem 0;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.blog-post pre code {
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.875rem;
    color: var(--text-muted-light);
    line-height: 1.65;
    background: none;
    border: none;
    padding: 0;
    border-radius: 0;
}

.blog-post p code,
.blog-post li code {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: 4px;
    padding: 0.15em 0.45em;
    font-size: 0.9em;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    color: var(--secondary);
}


/* ─── Blog Index Hero ────────────────────────────────────────────── */
.blog-index-hero {
    padding: 8rem 2rem 3rem;
    text-align: center;
    max-width: var(--max-width);
    margin: 0 auto;
}

.blog-index-hero h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--header-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.blog-index-hero .subtitle {
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 1024px) {
    .blog-index-hero {
        padding: 7.5rem 1.5rem 2.5rem;
    }

    .blog-index-hero h1 {
        font-size: 2.85rem;
    }

    .post-card {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .blog-index-hero {
        padding: 7rem 1.5rem 2rem;
    }

    .blog-index-hero h1 {
        font-size: 2.4rem;
    }

    .post-card {
        padding: 1.75rem;
    }
}

/* ─── Blog Index Content ─────────────────────────────────────────── */
.blog-index-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 2rem 2rem 6rem;
}

/* ─── Post Cards ─────────────────────────────────────────────────── */
.post-grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 4rem;
}

.post-card {
    padding: 2.5rem;
    border-radius: var(--radius-card);
    text-decoration: none;
    color: inherit;
    display: block;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.post-card:hover {
    transform: translateY(-6px);
    border-color: rgba(59, 130, 246, 0.2) !important;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.post-card-tag {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.post-card-date {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.post-card h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.875rem;
    line-height: 1.3;
    transition: color 0.2s ease;
}

.post-card:hover h2 {
    color: var(--secondary);
}

.post-card p {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.975rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}

.post-card-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1.5rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--secondary);
    transition: gap 0.25s ease;
}

.post-card:hover .post-card-read-more {
    gap: 0.8rem;
}

/* ─── Topic Clusters ─────────────────────────────────────────────── */
.cluster-section {
    border-top: 1px solid var(--glass-border);
    padding-top: 3rem;
}

.cluster-section-header {
    margin-bottom: 2rem;
}

.cluster-section-header h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text);
    margin-top: 0.5rem;
}

.cluster-groups {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.cluster-group {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 1.75rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.cluster-group h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--glass-border);
}

.cluster-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.cluster-links li {
    margin-bottom: 0.6rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.cluster-links a {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: none;
    border: none;
    transition: color 0.2s ease, padding-left 0.2s ease;
    display: block;
    padding-left: 0;
}

.cluster-links a:hover {
    color: var(--secondary);
    padding-left: 6px;
    border-bottom: none;
}