/* ==========================================================================
   insights.css — Zolltor Insights section (hub + article pages)
   Self-hosted, ships to gs://zolltor-website. Uses CSS variables from
   styles.css; loads no external resources. Generated section is the only
   consumer — safe to edit independently of the hand-authored pages.
   ========================================================================== */

/* ---------------------------------------------------------------- HUB ---- */
/* Insights hero — same structure/typography as the site's .product-hero,
   with books.png behind a light teal veil (mirrors .zti-hero's gradient
   and the .article-hero image-overlay technique). Markup uses
   product-hero / product-hero-content / product-badge / product-hero-title
   / product-hero-subtitle, so styling stays consistent with the other pages. */
.insights-hero {
    padding: 4rem 0 3.25rem; /* trimmed from the .product-hero default of 5.5/4.5 */
    background: linear-gradient(170deg, rgba(240, 253, 250, 0.85) 0%, rgba(249, 250, 251, 0.90) 55%),
                url('/images/books.png') center / cover no-repeat;
}
.insights-hero .article-back { margin-bottom: 1.25rem; }

.insights-section {
    padding: 3.5rem 0 4.5rem;
    background: var(--color-bg);
}
.insights-section + .insights-section { padding-top: 0; }
.insights-section-title {
    max-width: 1080px;
    margin: 0 auto 1.5rem;
    padding: 0 1.5rem;
    font-size: 1.4rem;
    color: var(--color-primary-800);
}

.insights-grid {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* --- Toolbar: filter chips + reports link --- */
.insights-toolbar {
    max-width: 1080px;
    margin: 0 auto 1.75rem;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 0.4rem 0.9rem;
    cursor: pointer;
    transition: all 0.18s ease;
}
.chip:hover { border-color: var(--color-primary-400); color: var(--color-primary-700); }
.chip.active {
    background: var(--color-primary-700);
    border-color: var(--color-primary-700);
    color: #fff;
}
.chip-count {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-left: 0.15rem;
}
.section-links { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.section-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary-700);
    text-decoration: none;
    white-space: nowrap;
}
.section-link:hover { color: var(--color-primary-900); }

/* --- Featured (first visible) card spans the grid, laid out wide --- */
.insight-card.featured {
    grid-column: 1 / -1;
    border-color: var(--color-primary-200);
}
.insight-card.featured .insight-card-body { padding: 2rem 2.25rem; }
.insight-card.featured .insight-kicker { color: var(--color-primary-700); }
.insight-card.featured h3 { font-size: 1.7rem; line-height: 1.25; }
.insight-card.featured .deck { font-size: 1.05rem; max-width: 70ch; }
@media (min-width: 720px) {
    .insight-card.featured .insight-card-body {
        display: grid;
        grid-template-columns: 1.4fr 1fr;
        gap: 0.5rem 2.5rem;
        align-items: center;
    }
    .insight-card.featured h3 { grid-column: 1; grid-row: 1; margin: 0; }
    .insight-card.featured .insight-kicker { grid-column: 1; grid-row: 1; align-self: start; }
    .insight-card.featured .deck { grid-column: 2; grid-row: 1; margin: 0; }
    .insight-card.featured .meta { grid-column: 1 / -1; }
}

/* --- Progressive reveal + empty state + show-more --- */
.insight-card.is-hidden { display: none; }
.insights-empty {
    max-width: 1080px;
    margin: 1rem auto 0;
    padding: 0 1.5rem;
    color: var(--color-text-muted);
    font-style: italic;
}
.insights-more { text-align: center; margin-top: 2.5rem; }
.btn-show-more {
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--color-primary-700);
    background: var(--color-surface);
    border: 1px solid var(--color-primary-300);
    border-radius: var(--card-radius);
    padding: 0.7rem 1.75rem;
    cursor: pointer;
    transition: all 0.18s ease;
}
.btn-show-more:hover { background: var(--color-primary-50); border-color: var(--color-primary-500); }
.btn-show-more[hidden] { display: none; }

/* Brief card */
.insight-card {
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}
.insight-card:hover {
    border-color: var(--color-primary-400);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}
.insight-card-body {
    padding: 1.5rem 1.5rem 1.75rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.insight-kicker {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary-700);
    margin-bottom: 0.75rem;
}
.insight-card h3 {
    font-size: 1.2rem;
    line-height: 1.35;
    margin-bottom: 0.6rem;
}
.insight-card h3 a { color: var(--color-gray-900); text-decoration: none; }
.insight-card h3 a:hover { color: var(--color-primary-700); }
.insight-card .deck {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 1.25rem;
    flex: 1;
}
.insight-card .meta {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    padding-top: 0.85rem;
}

/* Report card (monthly PDFs) */
.report-card {
    display: grid;
    grid-template-columns: 132px 1fr;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: box-shadow 0.25s ease, border-color 0.25s ease;
}
.report-card:hover { border-color: var(--color-primary-400); box-shadow: var(--shadow-md); }
.report-cover {
    background: var(--color-primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid var(--color-border);
}
.report-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.report-cover .report-cover-fallback {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-primary-700);
    font-size: 0.8rem;
    text-align: center;
    padding: 1rem;
    line-height: 1.4;
}
.report-card-body { padding: 1.5rem; }
.report-card-body h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.report-card-body .deck { font-size: 0.92rem; color: var(--color-text-secondary); line-height: 1.6; margin-bottom: 1rem; }
.report-download {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary-700);
    text-decoration: none;
}
.report-download:hover { color: var(--color-primary-900); }
.report-meta { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 0.6rem; }

/* ------------------------------------------------------------ ARTICLE ---- */
/* (Lifted verbatim from the original Q&A page so converted content matches.) */
.article-hero {
    padding: 4rem 0 3rem;
    background: var(--color-primary-50);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}
.article-hero.has-image { background-size: cover; background-position: center; background-repeat: no-repeat; }
.article-hero.has-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.82);
    z-index: 0;
}
.article-hero .container { position: relative; z-index: 1; }
.article-hero-content { max-width: 780px; margin: 0 auto; text-align: center; }
.article-back {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary-700);
    text-decoration: none;
    margin-bottom: 1.25rem;
}
.article-back:hover { color: var(--color-primary-900); }
.article-eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-primary-700);
    background: var(--color-primary-50);
    padding: 0.35rem 0.85rem;
    border-radius: 3px;
    margin-bottom: 1.5rem;
}
.article-title { font-size: 2.4rem; line-height: 1.2; color: var(--color-gray-900); margin-bottom: 1.25rem; }
.article-deck { font-size: 1.15rem; line-height: 1.6; color: var(--color-text-secondary); margin-bottom: 1.75rem; }
.article-meta {
    display: flex; justify-content: center; align-items: center; flex-wrap: wrap;
    gap: 0.5rem 1.25rem; font-size: 0.9rem; color: var(--color-text-muted);
}
.article-meta-divider { color: var(--color-gray-300); }

.expert-card {
    max-width: 780px; margin: -1.5rem auto 0;
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--card-radius); box-shadow: var(--shadow-md);
    padding: 1.75rem 2rem; display: flex; align-items: flex-start; gap: 1.5rem;
    position: relative; z-index: 1;
}
.expert-avatar {
    width: 80px; height: 80px; min-width: 80px; border-radius: 50%;
    background: var(--color-primary-100); color: var(--color-primary-800);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-heading); font-size: 1.6rem; font-weight: 700;
    border: 2px solid var(--color-primary-200);
}
.expert-info h3 { font-size: 1.15rem; margin-bottom: 0.25rem; }
.expert-title { font-size: 0.9rem; font-weight: 600; color: var(--color-primary-700); margin-bottom: 0.5rem; }
.expert-bio { font-size: 0.92rem; color: var(--color-text-secondary); line-height: 1.6; }

.article-body { padding: 4rem 0 5rem; background: var(--color-bg); }
.article-content { max-width: 740px; margin: 0 auto; }
.article-intro {
    font-size: 1.08rem; line-height: 1.8; color: var(--color-text-secondary);
    margin-bottom: 2.5rem; padding-bottom: 2rem; border-bottom: 1px solid var(--color-border);
}

/* Inline figures (charts/diagrams in brief bodies) */
.article-figure { margin: 2.5rem 0; }
.article-figure img {
    display: block; width: 100%; height: auto;
    border: 1px solid var(--color-border); border-radius: var(--card-radius);
    background: var(--color-surface);
}
.article-figure figcaption {
    margin-top: 0.75rem; font-size: 0.85rem; line-height: 1.5;
    color: var(--color-text-muted); text-align: center;
}

/* --- Body prose: spacing & typography for Markdown brief/report content.
   Scoped to direct, unclassed children so .article-intro / .qa-block /
   .article-closing / .pull-quote keep their own dedicated styles. The global
   reset (* { margin: 0 }) and `ul,ol { list-style: none }` are restored here. */
.article-content > p:not([class]) {
    font-size: 1.08rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}
.article-content > h2 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    line-height: 1.3;
    color: var(--color-gray-900);
    margin: 2.75rem 0 1rem;
}
.article-content > h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    line-height: 1.35;
    color: var(--color-gray-900);
    margin: 2.25rem 0 0.85rem;
}
.article-content > ul,
.article-content > ol {
    margin: 0 0 1.5rem;
    padding-left: 1.5rem;
}
.article-content > ul { list-style: disc; }
.article-content > ol { list-style: decimal; }
.article-content > ul > li,
.article-content > ol > li {
    font-size: 1.08rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 0.55rem;
    padding-left: 0.35rem;
}
.article-content > ul > li::marker { color: var(--color-primary-500); }
.article-content > ol > li::marker { color: var(--color-primary-600); font-weight: 600; }
.article-content a {
    color: var(--color-primary-700);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.article-content a:hover { color: var(--color-primary-900); }
.article-content strong { color: var(--color-gray-800); font-weight: 600; }
.article-content > p:not([class]):last-child,
.article-content > ul:last-child,
.article-content > ol:last-child { margin-bottom: 0; }

.qa-block { margin-bottom: 2.5rem; }
.qa-question { display: flex; gap: 1rem; margin-bottom: 1rem; }
.qa-label {
    font-family: var(--font-heading); font-size: 1.5rem; font-weight: 700;
    color: var(--color-primary-700); line-height: 1; min-width: 1.5rem; padding-top: 0.1rem;
}
.qa-question-text {
    font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700;
    line-height: 1.45; color: var(--color-gray-900);
}
.qa-answer { display: flex; gap: 1rem; padding-left: 0; }
.qa-answer .qa-label { color: var(--color-gray-400); }
.qa-answer-text { flex: 1; font-size: 1.12rem; line-height: 1.8; color: var(--color-text-secondary); }
.qa-answer-text p { margin-bottom: 1rem; }
.qa-answer-text p:last-child { margin-bottom: 0; }
.qa-answer-text strong { color: var(--color-gray-800); font-weight: 600; }
.qa-answer-text em { color: var(--color-primary-800); font-style: normal; font-weight: 600; }

.pull-quote {
    margin: 2.5rem 0; padding: 1.75rem 2rem; background: var(--color-surface);
    border-left: 3px solid var(--color-primary-500); border-radius: var(--card-radius);
    font-family: var(--font-heading); font-size: 1.25rem; line-height: 1.5;
    color: var(--color-primary-800); font-style: italic;
}
.pull-quote::before {
    content: '\201C'; font-size: 1.5em; line-height: 0; vertical-align: -0.3em;
    margin-right: 0.1em; color: var(--color-primary-400);
}
.pull-quote::after {
    content: '\201D'; font-size: 1.5em; line-height: 0; vertical-align: -0.3em;
    margin-left: 0.1em; color: var(--color-primary-400);
}

.article-closing {
    margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--color-border);
    font-size: 0.95rem; color: var(--color-text-muted); line-height: 1.7; font-style: italic;
}

.editorial-note {
    margin: 1.5rem 0 2.5rem; padding: 1.25rem 1.5rem; background: var(--color-gray-50, #f7f8f9);
    border: 1px solid var(--color-border); border-left: 3px solid var(--color-gray-400);
    border-radius: var(--card-radius); font-size: 0.92rem; line-height: 1.65; color: var(--color-text-secondary);
}
.editorial-note-label {
    display: block; font-family: var(--font-body); font-size: 0.75rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-muted); margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .article-title { font-size: 1.85rem; }
    .article-deck { font-size: 1.05rem; }
    .expert-card { flex-direction: column; text-align: center; align-items: center; gap: 1rem; padding: 1.5rem; }
    .qa-question-text { font-size: 1.08rem; }
    .qa-answer-text { font-size: 0.98rem; }
    .pull-quote { font-size: 1.1rem; padding: 1.25rem 1.5rem; }
    .report-card { grid-template-columns: 1fr; }
    .report-cover { min-height: 120px; border-right: none; border-bottom: 1px solid var(--color-border); }
}