/* ═══════════════════════════════════════════════════════════════
   Post / Page styles — Nightwire edition
   ═══════════════════════════════════════════════════════════════ */

/* === Post Page === */
.post-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 32px 0;
}

/* Breadcrumb */
.post-breadcrumb {
    margin-bottom: 24px;
    font-size: 13px;
}

/* Post Header */
.post-header {
    margin-bottom: 28px;
}

.post-header .tag-pills {
    margin-bottom: 12px;
}

.post-title {
    font-family: var(--font-title);
    font-weight: 900;
    font-size: 34px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.post-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-family: var(--font-sys);
}

.post-author {
    display: flex;
    align-items: center;
    gap: 8px;
}

.post-author-avatar {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    object-fit: cover;
}

.post-author-avatar-placeholder {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--nw-primary), var(--nw-purple));
}

.post-author-name {
    font-weight: 500;
    color: var(--text-primary);
}

/* Feature Image */
.post-feature-image {
    position: relative;
    margin-bottom: 36px;
    overflow: hidden;
    border: 1px solid var(--border-primary);
}

.post-feature-image img {
    width: 100%;
    height: auto;
    display: block;
    filter: saturate(0.85) contrast(1.05);
}

/* Content + TOC Grid */
.post-grid {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 40px;
    align-items: start;
}

/* Article Body */
.post-content {
    max-width: 720px;
    font-size: 15px;
    line-height: 1.8;
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
    font-family: var(--font-sys);
    color: var(--text-primary);
}

.post-content h2 {
    font-size: 20px;
    font-weight: 700;
    margin-top: 44px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-accent);
    color: var(--nw-primary-hot);
    letter-spacing: 0.02em;
}

.post-content h3 {
    font-size: 17px;
    font-weight: 600;
    margin-top: 36px;
    margin-bottom: 12px;
    color: var(--nw-cyan);
}

.post-content h4 {
    font-size: 15px;
    font-weight: 600;
    margin-top: 28px;
    margin-bottom: 8px;
    color: var(--nw-green);
}

.post-content p {
    font-size: 15px;
    line-height: 1.85;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.post-content a {
    color: var(--nw-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--nw-primary-dim);
    transition: color 0.18s ease, border-color 0.18s ease;
}

.post-content a:hover {
    color: var(--nw-primary-hot);
    border-bottom-color: var(--nw-primary);
}

.post-content code:not(pre code) {
    font-family: var(--font-sys);
    font-size: 13px;
    background-color: var(--void-panel);
    color: var(--nw-cyan);
    padding: 2px 6px;
    border: 1px solid var(--border-subtle);
}

.post-content pre {
    position: relative;
    background-color: var(--void-panel);
    border: 1px solid var(--border-primary);
    border-left: 2px solid var(--nw-primary-dim);
    padding: 18px 20px;
    margin-bottom: 20px;
    overflow-x: auto;
    font-size: 13px;
    line-height: 1.6;
}

.post-content pre code {
    font-family: var(--font-sys);
    background: none;
    border: none;
    padding: 0;
    color: var(--text-secondary);
}

.post-content blockquote {
    border-left: 2px solid var(--nw-primary);
    background-color: var(--nw-primary-fill);
    padding: 16px 20px;
    margin: 0 0 20px 0;
}

.post-content blockquote p {
    margin-bottom: 0;
    font-style: italic;
    color: var(--text-secondary);
}

.post-content img {
    max-width: 100%;
    height: auto;
    margin: 24px 0;
    border: 1px solid var(--border-primary);
}

.post-content ul,
.post-content ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.post-content ul { list-style-type: disc; }
.post-content ol { list-style-type: decimal; }

.post-content li {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.post-content hr {
    border: none;
    border-top: 1px solid var(--border-primary);
    margin: 36px 0;
}

.post-content strong {
    font-weight: 700;
    color: var(--text-primary);
}

.post-content em { font-style: italic; }

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    font-size: 14px;
}

.post-content th {
    text-align: left;
    font-family: var(--font-stamp);
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--nw-primary);
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-accent);
    background: linear-gradient(180deg, rgba(102,153,255,0.05), transparent);
}

.post-content td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

.post-content tr:hover td {
    background-color: var(--hover-row-bg);
}

/* Series Badge */
.series-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--nw-purple-fill);
    border: 1px solid var(--nw-purple-dim);
    color: var(--nw-purple);
    padding: 4px 10px;
    font-family: var(--font-stamp);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.series-badge-separator { color: var(--text-muted); }

/* Series Index */
.series-index {
    background: var(--void-warm);
    border: 1px solid var(--border-primary);
    margin-top: 48px;
    overflow: hidden;
}

.series-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    background: linear-gradient(180deg, rgba(102,153,255,0.05), transparent);
    transition: background 0.18s;
}

.series-header:hover { background: var(--nw-primary-fill); }

.series-title {
    font-family: var(--font-stamp);
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--nw-primary);
}

.series-toggle { color: var(--text-muted); font-size: 12px; }

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

.series-index.collapsed .series-list { display: none; }
.series-index.collapsed .series-header { border-bottom: none; }

.series-item {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 2px solid transparent;
    transition: background 0.18s, border-color 0.18s;
}

.series-item:last-child { border-bottom: none; }
.series-item:hover { background: var(--hover-row-bg); }

.series-item.current {
    background: var(--nw-green-faint);
    border-left-color: var(--nw-green);
}

.series-number {
    color: var(--text-muted);
    font-family: var(--font-sys);
    font-size: 12px;
    min-width: 28px;
}

.series-item.current .series-number {
    color: var(--nw-green);
    font-weight: 700;
}

.series-link {
    color: var(--text-secondary);
    text-decoration: none;
    flex: 1;
    font-size: 13px;
    transition: color 0.18s;
}

.series-item.current .series-link {
    color: var(--text-primary);
    font-weight: 500;
}

a.series-link:hover { color: var(--nw-primary-hot); }

.current-indicator {
    color: var(--nw-green);
    font-family: var(--font-stamp);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

/* Share Buttons */
.post-share {
    margin-top: 52px;
    padding-top: 24px;
    border-top: 1px solid var(--border-primary);
}

.post-share-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.post-share-btn {
    font-size: 11px;
    padding: 7px 12px;
}

/* Related Posts */
.related-posts { margin-top: 52px; }

.related-header {
    margin-bottom: 20px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
}

.related-card {
    text-decoration: none;
    color: inherit;
    display: block;
    border-left: 2px solid var(--nw-primary-dim);
    border: 1px solid var(--border-primary);
    border-left: 2px solid var(--nw-primary-dim);
    transition: border-color 0.18s, box-shadow 0.18s;
}

.related-card:hover {
    color: inherit;
    border-left-color: var(--nw-primary);
    box-shadow: 0 0 16px rgba(102,153,255,0.08);
}

.related-card-image {
    height: 130px;
    overflow: hidden;
}

.related-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.8);
}

.related-card-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.related-card-title {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

.related-card-excerpt {
    font-size: 12px;
    line-height: 1.5;
    color: var(--text-muted);
}

/* Table of Contents */
.toc-wrapper {
    position: sticky;
    top: 72px;
}

.toc-box {
    background-color: var(--void-warm);
    border: 1px solid var(--border-primary);
    border-left: 2px solid var(--border-accent);
    padding: 0;
    overflow: hidden;
}

.toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-accent);
    background: linear-gradient(180deg, rgba(102,153,255,0.06), transparent);
}

.toc-title {
    font-family: var(--font-stamp);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--nw-primary);
}

.toc-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    transition: color 0.18s;
}

.toc-toggle:hover { color: var(--nw-primary); }
.toc-toggle svg { transition: transform 0.2s ease; }

.toc-nav {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
}

.toc-nav.toc-collapsed { display: none; }

.toc-link {
    display: block;
    font-family: var(--font-sys);
    font-size: 12px;
    color: var(--text-muted);
    padding: 6px 14px;
    border-left: 2px solid transparent;
    text-decoration: none;
    line-height: 1.4;
    transition: color 0.18s, border-color 0.18s, background-color 0.18s;
}

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

.toc-link.active {
    color: var(--nw-primary);
    border-left-color: var(--nw-primary);
    background-color: var(--nw-primary-fill);
}

.toc-link--sub {
    font-size: 11px;
    padding-left: 24px;
}

/* Giscus */
.giscus-wrapper {
    margin-top: 52px;
    padding-top: 24px;
    border-top: 1px solid var(--border-primary);
}

.giscus-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    font-family: var(--font-stamp);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--nw-primary);
}

/* Responsive */
@media (max-width: 1024px) {
    .post-grid { grid-template-columns: 1fr; }
    .post-sidebar { order: -1; }
    .toc-wrapper { position: static; }
    .toc-toggle { display: flex; }
}

@media (max-width: 768px) {
    .post-title { font-size: 26px; letter-spacing: 0.1em; }

    .related-grid { grid-template-columns: 1fr; gap: 8px; }

    .post-share-buttons { flex-direction: column; }

    .post-grid { grid-template-columns: 1fr; gap: 0; }
    .post-sidebar { display: none; }

    .series-item { padding: 8px 12px; }
    .series-header { padding: 10px 12px; }

    .post-content {
        max-width: 100%;
        min-width: 0;
        overflow-wrap: break-word;
        word-wrap: break-word;
    }

    .post-content pre { max-width: 100%; }

    .post-content table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
    }
}