/* ============================================
   SAMUEL ZNIBER — INSIGHTS MODULE
   Hub grid + filter chips + per-article reading
   layout. Inherits all tokens from style.css.
   ============================================ */

/* ───── HUB: filter chips ───── */
.insights-filters {
    padding: 0 0 56px;
}

.insights-filters .container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.insights-filter {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--muted);
    background: transparent;
    border: 1px solid var(--canvas-edge);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.insights-filter:hover {
    color: var(--foreground);
    border-color: var(--divider);
}

.insights-filter.is-active {
    color: var(--accent-ink);
    background: var(--accent);
    border-color: var(--accent);
}

.insights-filter .count {
    font-size: 11px;
    font-weight: 600;
    opacity: 0.6;
}

.insights-filter.is-active .count {
    opacity: 0.7;
}

/* ───── HUB: card grid ───── */
/* NOTE: class is .insights-hub-grid (not .insights-grid) to avoid colliding
   with the legacy .insights-grid rule in style.css line 1608, which sets
   display:grid on the section itself and would turn .container into a single
   grid item collapsed to 1/3 width. */
.insights-hub-grid {
    padding: 16px 0 96px;
}

.insights-hub-grid .container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.insights-card {
    display: flex;
    flex-direction: column;
    background: var(--canvas-soft);
    border: 1px solid var(--canvas-edge);
    border-radius: var(--radius-lg);
    text-decoration: none;
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.insights-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-dim);
    box-shadow: var(--shadow-card);
}

.insights-card.is-hidden {
    display: none;
}

.insights-card-media {
    aspect-ratio: 16 / 10;
    background: var(--dust-850);
    overflow: hidden;
    border-bottom: 1px solid var(--canvas-edge);
}

.insights-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out);
}

.insights-card:hover .insights-card-media img {
    transform: scale(1.04);
}

.insights-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 24px 24px 28px;
    gap: 14px;
}

.insights-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: var(--eyebrow-track);
    text-transform: uppercase;
    color: var(--muted);
}

.insights-card-type {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid var(--accent-dim);
    border-radius: var(--radius-pill);
    font-size: 10px;
    letter-spacing: 0.14em;
}

.insights-card-dot {
    opacity: 0.4;
}

.insights-card h3 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 400;
    line-height: 1.22;
    letter-spacing: var(--tracking-tight);
    color: var(--foreground);
    margin: 0;
}

.insights-card-dek {
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.55;
    color: var(--text-secondary);
    flex: 1;
}

.insights-card-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--accent);
    margin-top: 4px;
    transition: gap var(--transition);
}

.insights-card:hover .insights-card-cta {
    gap: 10px;
}

/* ───── HUB: empty state (when a filter has no matches) ───── */
.insights-empty {
    display: none;
    grid-column: 1 / -1;
    padding: 64px 24px;
    text-align: center;
    color: var(--muted);
    font-family: var(--font-body);
    font-size: 15px;
}

.insights-empty.is-visible {
    display: block;
}

/* ───── ARTICLE: reading progress bar ───── */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    z-index: 200;
    transition: width 80ms linear;
    pointer-events: none;
}

/* ───── ARTICLE: header ───── */
.article-hero {
    padding: 160px 0 56px;
}

.article-hero > .container {
    max-width: 880px;
}

.article-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--accent);
    text-decoration: none;
    margin-bottom: 36px;
    transition: gap var(--transition);
}

.article-back:hover {
    gap: 12px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: var(--eyebrow-track);
    text-transform: uppercase;
    color: var(--muted);
}

.article-meta .article-type-pill {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid var(--accent-dim);
    border-radius: var(--radius-pill);
    font-size: 10px;
    letter-spacing: 0.14em;
}

.article-meta .article-meta-dot {
    opacity: 0.4;
}

.article-headline {
    font-family: var(--font-display);
    font-size: clamp(36px, 5.5vw, 64px);
    font-weight: 400;
    line-height: 1.05;
    letter-spacing: var(--tracking-display);
    color: var(--foreground);
    margin: 0 0 28px;
}

.article-dek {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(18px, 2.2vw, 22px);
    font-weight: 300;
    line-height: 1.5;
    color: var(--text-secondary);
    padding: 4px 0 4px 24px;
    border-left: 2px solid var(--accent);
    max-width: 700px;
}

.article-hero-img {
    width: 100%;
    max-width: 880px;
    margin: 48px auto 0;
    display: block;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

/* ───── ARTICLE: key takeaway ───── */
.article-takeaway {
    padding: 32px 0;
}

.article-takeaway > .container {
    max-width: 880px;
}

.article-takeaway-card {
    background: var(--canvas-soft);
    border: 1px solid var(--accent-dim);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
}

.article-takeaway-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: var(--eyebrow-track);
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 14px;
}

.article-takeaway-card p {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    margin: 0;
}

/* ───── ARTICLE: body prose ───── */
.article-body {
    padding: 24px 0 32px;
}

.article-body > .container {
    max-width: 720px;
}

.article-body p {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.78;
    color: var(--text-primary);
    margin: 0 0 28px;
}

.article-body p:first-of-type::first-letter {
    font-family: var(--font-display);
    font-size: 1.6em;
    font-weight: 400;
    color: var(--accent);
    line-height: 0.9;
    padding-right: 4px;
}

.article-body h2 {
    font-family: var(--font-display);
    font-size: clamp(28px, 3.4vw, 36px);
    font-weight: 400;
    line-height: 1.18;
    letter-spacing: var(--tracking-tight);
    color: var(--foreground);
    margin: 56px 0 20px;
}

.article-body h3 {
    font-family: var(--font-display);
    font-size: clamp(22px, 2.4vw, 26px);
    font-weight: 500;
    line-height: 1.25;
    color: var(--foreground);
    margin: 44px 0 16px;
}

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

.article-body em {
    color: var(--text-secondary);
}

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

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

.article-body ul,
.article-body ol {
    margin: 0 0 32px;
    padding-left: 28px;
}

.article-body li {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.78;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.article-body ul li::marker {
    color: var(--accent);
}

.article-body blockquote {
    margin: 36px 0;
    padding: 4px 0 4px 24px;
    border-left: 3px solid var(--accent);
    font-family: var(--font-display);
    font-style: italic;
    font-size: 22px;
    font-weight: 300;
    line-height: 1.5;
    color: var(--text-primary);
    letter-spacing: var(--tracking-body);
}

.article-body blockquote p {
    font-size: inherit;
    line-height: inherit;
    color: inherit;
    margin: 0 0 12px;
}

.article-body blockquote cite {
    display: block;
    font-family: var(--font-body);
    font-style: normal;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--accent);
    margin-top: 12px;
}

/* Pull-quote (full-width, centered, framed) */
.article-pullquote {
    margin: 56px 0;
    padding: 36px 0;
    border-top: 1px solid var(--accent-dim);
    border-bottom: 1px solid var(--accent-dim);
    text-align: center;
}

.article-pullquote p {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(22px, 2.6vw, 28px);
    font-weight: 400;
    line-height: 1.4;
    letter-spacing: var(--tracking-tight);
    color: var(--foreground);
    margin: 0 auto;
    max-width: 640px;
}

/* Subtle section divider inside articles */
.article-break {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin: 48px 0;
}

.article-break span {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent-dim);
}

.article-break span:nth-child(2) {
    background: var(--accent);
}

/* ───── ARTICLE: closing signature ───── */
.article-sig {
    padding: 24px 0 48px;
}

.article-sig > .container {
    max-width: 720px;
}

.article-sig-inner {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding-top: 24px;
    border-top: 1px solid var(--divider);
}

.article-sig-name {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 28px;
    font-weight: 400;
    color: var(--foreground);
}

.article-sig-detail {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: var(--eyebrow-track);
    text-transform: uppercase;
    color: var(--muted);
}

/* ───── ARTICLE: related / read-next strip ───── */
.article-related {
    padding: 72px 0 32px;
    border-top: 1px solid var(--divider);
}

.article-related .related-eyebrow {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: var(--eyebrow-track);
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 28px;
}

.article-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.related-card {
    display: flex;
    flex-direction: column;
    background: var(--canvas-soft);
    border: 1px solid var(--canvas-edge);
    border-radius: var(--radius-md);
    text-decoration: none;
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition);
}

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

.related-card-media {
    aspect-ratio: 16 / 10;
    background: var(--dust-850);
    overflow: hidden;
}

.related-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-card-body {
    padding: 18px 20px 22px;
}

.related-card-type {
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: var(--eyebrow-track);
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 8px;
}

.related-card h4 {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: var(--tracking-tight);
    color: var(--foreground);
    margin: 0;
}

/* ───── STUDY landing page additions ───── */
.study-download {
    padding: 24px 0 32px;
}

.study-download > .container {
    max-width: 880px;
}

.study-download-card {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 32px;
    align-items: center;
    background: var(--canvas-soft);
    border: 1px solid var(--canvas-edge);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.study-download-cover {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-photo);
    overflow: hidden;
}

.study-download-cover img {
    width: 100%;
    height: auto;
    display: block;
}

.study-download-meta {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: var(--eyebrow-track);
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}

.study-download h2 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: var(--tracking-tight);
    color: var(--foreground);
    margin: 0 0 12px;
}

.study-download p {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0 0 20px;
}

.study-download .btn {
    margin-top: 4px;
}

/* ───── RESPONSIVE ───── */
@media (max-width: 980px) {
    .insights-hub-grid .container {
        grid-template-columns: repeat(2, 1fr);
    }
    .article-related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .study-download-card {
        grid-template-columns: 160px 1fr;
        gap: 24px;
        padding: 22px;
    }
}

@media (max-width: 720px) {
    .insights-hub-grid .container {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .article-related-grid {
        grid-template-columns: 1fr;
    }
    .insights-filters {
        padding-bottom: 40px;
    }
    .article-hero {
        padding: 120px 0 40px;
    }
    .article-hero-img {
        margin-top: 32px;
    }
    .article-takeaway-card {
        padding: 22px;
    }
    .article-body p,
    .article-body li {
        font-size: 17px;
        line-height: 1.75;
    }
    .article-body blockquote {
        font-size: 19px;
    }
    .article-pullquote p {
        font-size: 20px;
    }
    .study-download-card {
        grid-template-columns: 1fr;
        text-align: left;
    }
    .study-download-cover {
        max-width: 200px;
    }
}