/* ============================================================
   BLOG — sits on top of base.css + components.css + redesign-v24.css
   Reuses homepage tokens (--bg-primary, --text-*, --accent-*, --border).
   ============================================================ */

/* Push content below fixed top-nav */
.blog-page {
    padding-top: 6rem;
    padding-bottom: 6rem;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.blog-container {
    max-width: 780px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ─── HERO (index page) ───────────────────────────────── */

.blog-hero {
    text-align: center;
    margin-bottom: 4rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--border);
}

.blog-hero .release-pill {
    margin-bottom: 2rem;
}

.blog-hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 1.25rem;
}

.blog-subtitle {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto;
}

/* ─── POST CARDS (index page) ─────────────────────────── */

.post-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.post-card {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: transform 0.25s var(--ease-out),
                border-color 0.25s var(--ease-out),
                box-shadow 0.25s var(--ease-out);
    overflow: hidden;
}

.post-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
        rgba(37, 99, 235, 0.04),
        rgba(124, 58, 237, 0.04));
    opacity: 0;
    transition: opacity 0.25s var(--ease-out);
    pointer-events: none;
}

.post-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-cyan);
    box-shadow: 0 20px 40px -12px var(--glow-cyan),
                0 8px 16px -8px rgba(0, 0, 0, 0.06);
}

.post-card:hover::before {
    opacity: 1;
}

.post-card-link {
    position: relative;
    display: block;
    padding: 2rem 2.25rem;
    color: inherit;
}

.post-card-meta {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.post-card-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin-bottom: 0.85rem;
    color: var(--text-primary);
}

.post-card-excerpt {
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.post-card-cta {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-cyan);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.post-card-cta-arrow {
    transition: transform 0.25s var(--ease-out);
}

.post-card:hover .post-card-cta-arrow {
    transform: translateX(4px);
}

/* ─── INDEX FOOTER CTA ────────────────────────────────── */

.blog-cta {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.blog-cta a {
    color: var(--accent-cyan);
    font-weight: 500;
}

.blog-cta a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* ─── POST PAGE ──────────────────────────────────────── */

.post-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    transition: color 0.2s;
}

.post-back:hover {
    color: var(--accent-cyan);
}

.post-header {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.post-meta {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.post-header h1 {
    font-size: clamp(2rem, 4.5vw, 3rem);
    line-height: 1.15;
    margin-bottom: 1.25rem;
}

.post-deck {
    font-size: 1.15rem;
    line-height: 1.65;
    color: var(--text-secondary);
    font-style: italic;
}

/* ─── POST BODY (long-form readability) ───────────────── */

.post-body {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text-secondary);
}

.post-body h2 {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: -0.02em;
    margin: 3rem 0 1rem;
    color: var(--text-primary);
}

.post-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 2.25rem 0 0.75rem;
    color: var(--text-primary);
}

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

.post-body ul,
.post-body ol {
    margin: 0 0 1.5rem;
    padding-left: 1.5rem;
}

.post-body li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.post-body a {
    color: var(--accent-cyan);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(37, 99, 235, 0.3);
    transition: text-decoration-color 0.2s;
}

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

.post-body code {
    /* inherits base.css inline-code styling */
}

.post-body pre {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    overflow-x: auto;
    margin: 0 0 1.5rem;
    font-size: 0.88rem;
    line-height: 1.6;
}

.post-body pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: inherit;
    font-size: inherit;
}

.post-body blockquote {
    border-left: 3px solid var(--accent-violet);
    padding: 0.5rem 0 0.5rem 1.25rem;
    margin: 0 0 1.5rem;
    color: var(--text-muted);
    font-style: italic;
}

.post-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 1.75rem;
    font-size: 0.95rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.post-body th,
.post-body td {
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.post-body tr:last-child td {
    border-bottom: none;
}

.post-body th {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.post-body strong {
    color: var(--text-primary);
}

.post-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2.75rem 0;
}

/* ─── SHARE BAR ───────────────────────────────────────── */

.post-share {
    margin-top: 3.5rem;
    padding: 1.5rem 1.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.post-share-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.post-share-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 0.95rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, transform 0.2s;
    font-family: inherit;
}

.share-btn:hover {
    transform: translateY(-1px);
    color: var(--text-primary);
}

.share-btn[data-net="linkedin"]:hover { border-color: #0a66c2; color: #0a66c2; }
.share-btn[data-net="x"]:hover { border-color: var(--text-primary); }
.share-btn[data-net="hn"]:hover { border-color: #ff6600; color: #ff6600; }
.share-btn[data-net="copy"]:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }

.share-btn svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.share-btn.copied {
    border-color: var(--accent-emerald);
    color: var(--accent-emerald);
}

[data-theme="dark"] .post-share {
    background: var(--bg-secondary);
}

[data-theme="dark"] .share-btn {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .share-btn[data-net="linkedin"]:hover { color: #58a6ff; border-color: #58a6ff; }
[data-theme="dark"] .share-btn[data-net="x"]:hover { color: var(--text-primary); border-color: var(--text-primary); }

@media (max-width: 540px) {
    .post-share {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
        padding: 1.25rem 1.25rem;
    }
}

/* ─── POST FOOTER ─────────────────────────────────────── */

.post-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    font-size: 0.95rem;
    color: var(--text-muted);
}

.post-footer p {
    margin-bottom: 0.75rem;
}

.post-footer a {
    color: var(--accent-cyan);
    font-weight: 500;
}

.post-footer a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* ─── DARK MODE TWEAKS ────────────────────────────────── */

[data-theme="dark"] .post-card {
    background: var(--bg-secondary);
    border-color: var(--border);
}

[data-theme="dark"] .post-card::before {
    background: linear-gradient(135deg,
        rgba(88, 166, 255, 0.06),
        rgba(163, 113, 247, 0.06));
}

[data-theme="dark"] .post-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 20px 40px -12px rgba(88, 166, 255, 0.15),
                0 8px 16px -8px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .post-body pre {
    background: #0d1117;
    border-color: var(--border);
}

[data-theme="dark"] .post-body th {
    background: var(--bg-tertiary);
}

[data-theme="dark"] .post-body a {
    text-decoration-color: rgba(88, 166, 255, 0.4);
}

[data-theme="dark"] .post-body a:hover {
    text-decoration-color: var(--accent-cyan);
}

/* ─── RESPONSIVE ──────────────────────────────────────── */

@media (max-width: 600px) {
    .blog-page {
        padding-top: 5rem;
    }

    .blog-container {
        padding: 0 1.25rem;
    }

    .post-card-link {
        padding: 1.5rem 1.5rem;
    }

    .post-card-title {
        font-size: 1.35rem;
    }
}