/* ===========================================
   INSIGHTS — Shared styles for /insights pages
   =========================================== */

/* ── Index: article card grid ─────────────────────────────────── */
.insights-hero {
    padding: 7rem 0 3rem;
    border-bottom: 1px solid var(--border-subtle);
}

.insights-hero-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--accent-primary);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.insights-hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.15;
    margin-bottom: 1rem;
}

.insights-hero-description {
    font-size: var(--text-lg);
    color: var(--text-tertiary);
    max-width: 560px;
    line-height: 1.6;
}

.insights-grid-section {
    padding: 4rem 0 6rem;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.insight-card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s, transform 0.2s;
    text-decoration: none;
}

.insight-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

.insight-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.insight-category {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: var(--accent-primary-muted);
    padding: 0.25rem 0.625rem;
    border-radius: 3px;
}

.insight-date {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.insight-read-time {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-left: auto;
}

.insight-card-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 0.875rem;
}

.insight-card-excerpt {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: 1.65;
    flex: 1;
    margin-bottom: 1.5rem;
}

.insight-card-cta {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--accent-primary);
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.insight-card-cta svg {
    width: 14px;
    height: 14px;
    transition: transform 0.2s;
}

.insight-card:hover .insight-card-cta svg {
    transform: translateX(3px);
}

/* ── Article page ─────────────────────────────────────────────── */
.article-header {
    padding: 7rem 0 3.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.article-breadcrumb {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s;
}

.article-breadcrumb a:hover {
    color: var(--accent-primary);
}

.article-breadcrumb-sep {
    opacity: 0.4;
}

.article-category-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-primary);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    background: var(--accent-primary-muted);
    padding: 0.25rem 0.625rem;
    border-radius: 3px;
    display: inline-block;
    margin-bottom: 1.25rem;
}

.article-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.15;
    max-width: 820px;
    margin-bottom: 1.5rem;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.article-meta-item {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.article-meta-item svg {
    width: 13px;
    height: 13px;
    opacity: 0.6;
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: 4rem;
    padding: 4rem 0 6rem;
    align-items: start;
}

/* Article body prose */
.article-body {
    max-width: 720px;
}

.article-body p {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.article-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 2.5rem 0 1rem;
    padding-bottom: 0.625rem;
    border-bottom: 1px solid var(--border-subtle);
}

.article-body h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2rem 0 0.75rem;
}

.article-body ul, .article-body ol {
    margin: 0 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.article-body li {
    font-size: 1.0625rem;
    margin-bottom: 0.5rem;
}

.article-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.article-body a {
    color: var(--accent-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--accent-primary-muted);
    transition: border-color 0.15s;
}

.article-body a:hover {
    border-color: var(--accent-primary);
}

/* Reset link overrides for button elements inside article body */
.article-body .btn-primary,
.article-body .btn-primary:hover {
    color: var(--text-inverse);
    border-bottom: none;
    text-decoration: none;
}

/* Stat callout block */
.stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 2rem 0;
}

.stat-callout {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-left: 3px solid var(--accent-primary);
    border-radius: 0 6px 6px 0;
    padding: 1.25rem 1.5rem;
}

.stat-callout-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-primary);
    line-height: 1;
    margin-bottom: 0.375rem;
    font-family: var(--font-mono);
}

.stat-callout-label {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: 1.4;
}

.stat-callout-source {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    letter-spacing: 0.05em;
}

/* Pull quote */
.pull-quote {
    border-left: 3px solid var(--accent-primary);
    padding: 1.25rem 1.5rem;
    margin: 2rem 0;
    background: var(--accent-primary-muted);
    border-radius: 0 6px 6px 0;
}

.pull-quote p {
    font-size: 1.125rem !important;
    font-weight: 600;
    color: var(--text-primary) !important;
    line-height: 1.5 !important;
    margin: 0 !important;
    font-style: italic;
}

/* Sources */
.article-sources {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-subtle);
}

.article-sources h3 {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.article-sources ol {
    margin-left: 1.25rem;
    color: var(--text-muted);
}

.article-sources li {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    line-height: 1.7;
    margin-bottom: 0.375rem;
}

.article-sources a {
    color: var(--text-muted);
    text-decoration: none;
}

.article-sources a:hover {
    color: var(--accent-primary);
}

/* Sidebar */
.article-sidebar {
    position: sticky;
    top: 6rem;
}

.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.sidebar-card-title {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--accent-primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

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

.sidebar-toc li {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-bottom: 0.625rem;
    padding-left: 0.875rem;
    border-left: 2px solid var(--border-subtle);
    line-height: 1.4;
}

.sidebar-toc a {
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.15s;
}

.sidebar-toc a:hover {
    color: var(--accent-primary);
}

.sidebar-cta {
    background: var(--accent-primary-muted);
    border: 1px solid var(--border-accent);
    border-radius: 8px;
    padding: 1.5rem;
}

.sidebar-cta-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.sidebar-cta-text {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 1.25rem;
}

.sidebar-cta-btn {
    display: block;
    background: var(--accent-primary);
    color: var(--text-inverse);
    font-weight: 700;
    font-size: var(--text-sm);
    padding: 0.75rem 1rem;
    border-radius: 5px;
    text-align: center;
    text-decoration: none;
    transition: background 0.2s;
}

.sidebar-cta-btn:hover {
    background: var(--accent-primary-hover);
    border-bottom: none;
}

/* Article CTA block (inline, bottom of article) */
.article-cta-block {
    background: var(--surface-card);
    border: 1px solid var(--border-accent);
    border-radius: 8px;
    padding: 2rem 2.5rem;
    margin-top: 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.article-cta-block-text h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.article-cta-block-text p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: 1.5;
    margin: 0;
}

.article-cta-block .btn-primary {
    white-space: nowrap;
    flex-shrink: 0;
}

/* Responsive */
@media (max-width: 900px) {
    .article-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .article-sidebar {
        position: static;
        order: -1;
    }

    .sidebar-toc {
        display: none;
    }

    .stat-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .insights-grid {
        grid-template-columns: 1fr;
    }

    .stat-grid {
        grid-template-columns: 1fr;
    }

    .article-cta-block {
        flex-direction: column;
        align-items: flex-start;
    }
}