/* =============================================================
   Vectivo — kb.css
   Knowledge base styling
   ============================================================= */

.kb-page {
    padding: 48px 0 80px;
    min-height: 70vh;
}

/* ── Header ─────────────────────────────────────────────────── */
.kb-eyebrow {
    color: var(--aqua);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 8px;
}
.kb-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 5vw, 42px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: var(--hemelgrijs);
    margin-bottom: 16px;
}
.kb-intro {
    font-size: 17px;
    line-height: 1.65;
    color: var(--staal-mid);
    max-width: 70ch;
}
.kb-intro p { margin-bottom: 12px; }
.kb-intro a { color: var(--aqua); }

.kb-header { margin-bottom: 40px; }

/* ── Breadcrumb ─────────────────────────────────────────────── */
.kb-breadcrumb {
    font-size: 13px;
    color: var(--staal);
    margin-bottom: 24px;
}
.kb-breadcrumb a {
    color: var(--staal-mid);
    text-decoration: none;
}
.kb-breadcrumb a:hover { color: var(--aqua); }
.kb-breadcrumb-sep {
    margin: 0 8px;
    color: var(--staal);
}

/* ── Search ─────────────────────────────────────────────────── */
.kb-search {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
    max-width: 600px;
}
.kb-search-input {
    flex: 1;
    padding: 14px 18px;
    background: var(--diep);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--hemelgrijs);
    font-family: inherit;
    font-size: 15px;
}
.kb-search-input:focus {
    outline: 2px solid var(--aqua);
    outline-offset: 2px;
    border-color: var(--aqua);
}
.kb-search-btn {
    padding: 14px 24px;
    background: var(--aqua);
    color: var(--leisteen);
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
}
.kb-search-btn:hover { background: var(--vectivo-blauw); }

/* ── Index: category cards ──────────────────────────────────── */
.kb-categories {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
@media (min-width: 768px) {
    .kb-categories { grid-template-columns: 1fr 1fr; }
}

.kb-category-card {
    display: block;
    padding: 24px 26px;
    background: var(--diep);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg, 12px);
    text-decoration: none;
    color: var(--hemelgrijs);
    transition: border-color 0.2s, transform 0.2s;
}
.kb-category-card:hover {
    border-color: var(--vectivo-blauw);
    transform: translateY(-2px);
}
.kb-category-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--hemelgrijs);
    margin-bottom: 8px;
}
.kb-category-desc {
    color: var(--staal-mid);
    font-size: 14px;
    line-height: 1.55;
    margin-bottom: 14px;
}
.kb-category-link {
    color: var(--aqua);
    font-size: 14px;
    font-weight: 600;
}

/* ── Article list within category ───────────────────────────── */
.kb-article-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.kb-article-item {
    background: var(--diep);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    transition: border-color 0.15s;
}
.kb-article-item:hover {
    border-color: var(--vectivo-blauw);
}
.kb-article-link {
    display: block;
    padding: 18px 22px;
    text-decoration: none;
}
.kb-article-link h2 {
    color: var(--hemelgrijs);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}
.kb-article-link:hover h2 { color: var(--aqua); }
.kb-article-link p {
    color: var(--staal-mid);
    font-size: 13px;
    line-height: 1.5;
}

/* ── Article view ───────────────────────────────────────────── */
.kb-article-header {
    padding-bottom: 24px;
    margin-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.kb-summary {
    font-size: 17px;
    line-height: 1.6;
    color: var(--staal-mid);
    margin-top: 12px;
}
.kb-meta {
    color: var(--staal);
    font-size: 13px;
    margin-top: 12px;
}

.kb-content {
    max-width: 70ch;
    color: var(--hemelgrijs);
    font-size: 16px;
    line-height: 1.7;
}
.kb-content h2 {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--hemelgrijs);
    margin: 32px 0 16px;
    letter-spacing: -0.01em;
}
.kb-content h3 {
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: 700;
    color: var(--hemelgrijs);
    margin: 28px 0 12px;
}
.kb-content h4 {
    font-size: 16px;
    font-weight: 700;
    margin: 22px 0 8px;
}
.kb-content p { margin: 14px 0; }
.kb-content ul, .kb-content ol {
    padding-left: 24px;
    margin: 14px 0;
}
.kb-content li { margin: 6px 0; }
.kb-content a {
    color: var(--aqua);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.kb-content blockquote {
    border-left: 3px solid var(--vectivo-blauw);
    padding: 8px 16px;
    margin: 18px 0;
    color: var(--staal-mid);
    font-style: italic;
}
.kb-content hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin: 32px 0;
}
.kb-content code {
    background: rgba(255, 255, 255, 0.06);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
    font-size: 14px;
    color: var(--aqua);
}

/* Code block */
.kb-code {
    background: var(--leisteen);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    padding: 16px 18px;
    margin: 18px 0;
    overflow-x: auto;
}
.kb-code code {
    background: transparent;
    padding: 0;
    color: var(--hemelgrijs);
    font-size: 13px;
    line-height: 1.65;
}

/* Callouts */
.kb-callout {
    display: flex;
    gap: 14px;
    padding: 16px 18px;
    margin: 20px 0;
    border-radius: 8px;
    border-left: 4px solid;
}
.kb-callout-info {
    background: rgba(56, 174, 255, 0.06);
    border-left-color: var(--vectivo-blauw);
}
.kb-callout-warning {
    background: rgba(251, 191, 36, 0.06);
    border-left-color: #FBBF24;
}
.kb-callout-success {
    background: rgba(0, 229, 204, 0.06);
    border-left-color: var(--aqua);
}
.kb-callout-icon {
    font-size: 20px;
    flex-shrink: 0;
}
.kb-callout-body { flex: 1; }
.kb-callout-body p { margin: 0 0 8px 0; font-size: 14px; line-height: 1.55; }
.kb-callout-body p:last-child { margin-bottom: 0; }

/* Related & footer */
.kb-related {
    margin: 48px 0 32px;
    padding: 24px;
    background: var(--diep);
    border-radius: 12px;
}
.kb-related h2 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--hemelgrijs);
}
.kb-related-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.kb-related-list li { padding: 4px 0; }
.kb-related-list a {
    color: var(--aqua);
    font-size: 14px;
}

.kb-article-footer {
    padding: 32px;
    background: var(--diep);
    border-radius: 12px;
    text-align: center;
}
.kb-article-footer p {
    color: var(--staal-mid);
    margin-bottom: 16px;
}

/* Empty state */
.kb-empty {
    padding: 40px 24px;
    text-align: center;
    color: var(--staal-mid);
    font-size: 14px;
    background: var(--diep);
    border-radius: 10px;
    border: 1px dashed rgba(255, 255, 255, 0.08);
}
.kb-empty a {
    color: var(--aqua);
}

/* Search results */
.kb-search-results h2 {
    font-family: var(--font-display);
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--hemelgrijs);
}
.kb-result-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.kb-result-item {
    background: var(--diep);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
}
.kb-result-link {
    display: block;
    padding: 14px 18px;
    text-decoration: none;
}
.kb-result-link h3 {
    color: var(--hemelgrijs);
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}
.kb-result-link:hover h3 { color: var(--aqua); }
.kb-result-link p {
    color: var(--staal-mid);
    font-size: 13px;
}

/* Container helper */
.container-narrow {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 20px;
}