/* ============================================================
   Knowledge Base — /kb/
   ============================================================ */

.kb-page {
  background: var(--off-white);
  min-height: 100vh;
}

/* Portal chrome: logo left, Return to ITSO right (matches branded KB articles) */
.kb-page .kb-portal-nav .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 24px;
}

.kb-page .kb-portal-nav .nav-logo {
  flex-shrink: 0;
}

.kb-page .kb-portal-nav .nav-buttons {
  margin-left: auto;
  flex-shrink: 0;
}

.kb-main {
  padding-top: calc(var(--nav-h) + 32px);
  padding-bottom: 0;
  min-height: 70vh;
}

/* ── Catalog hero ── */
.kb-hero {
  padding: 24px 0 40px;
}

.kb-hero .section-tag {
  margin-bottom: 12px;
}

.kb-hero-title {
  font-family: var(--font-display);
  font-size: clamp(42px, 5.5vw, 64px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin-bottom: 14px;
}

.kb-hero-title span {
  color: var(--red);
}

.kb-hero-sub {
  font-size: 16px;
  color: var(--grey);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 28px;
}

.kb-search-wrap {
  position: relative;
  max-width: 520px;
}

.kb-search {
  width: 100%;
  padding: 14px 18px 14px 46px;
  border: 1.5px solid var(--border);
  background: var(--white);
  font-family: var(--font);
  font-size: 15px;
  color: var(--ink);
  border-radius: 12px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.kb-search:focus {
  outline: none;
  border-color: rgba(239, 65, 54, 0.45);
  box-shadow: 0 0 0 4px rgba(239, 65, 54, 0.08);
}

.kb-search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--grey-light);
  pointer-events: none;
}

/* ── Layout ── */
.kb-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

@media (max-width: 860px) {
  .kb-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* ── Sidebar ── */
.kb-sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 16px);
}

@media (max-width: 860px) {
  .kb-sidebar {
    position: static;
  }
}

.kb-side-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey-light);
  margin: 0 0 10px;
}

.kb-side-label-spaced {
  margin-top: 8px;
}

.kb-folder-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 28px;
}

/* Audience filters (sidebar) */
.kb-audience-filter {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 8px;
}

.kb-audience-filter-empty {
  margin: 0;
  font-size: 12.5px;
  color: var(--grey-light);
  line-height: 1.4;
}

.kb-audience-filter-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  color: var(--grey);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.kb-audience-filter-btn:hover {
  background: var(--white);
  color: var(--ink);
  border-color: var(--border);
}

.kb-audience-filter-btn.is-active {
  background: var(--white);
  color: var(--ink);
  border-color: rgba(239, 65, 54, 0.25);
  box-shadow: 0 4px 14px rgba(12, 18, 28, 0.04);
}

.kb-audience-filter-btn .kb-audience-flag {
  pointer-events: none;
}

.kb-audience-filter-btn .kb-count {
  font-size: 11px;
  font-weight: 700;
  color: var(--grey-light);
  background: var(--off-white);
  padding: 2px 8px;
  border-radius: 999px;
  flex-shrink: 0;
}

.kb-audience-filter-btn.is-active .kb-count {
  background: var(--red-faint);
  color: var(--red);
}

.kb-folder-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  text-transform: none;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  font-family: var(--font);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--grey);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.kb-folder-btn:hover {
  background: var(--white);
  color: var(--ink);
  border-color: var(--border);
}

.kb-folder-btn.is-active {
  background: var(--white);
  color: var(--ink);
  border-color: rgba(239, 65, 54, 0.25);
  box-shadow: 0 4px 14px rgba(12, 18, 28, 0.04);
}

.kb-folder-btn .kb-count {
  font-size: 11px;
  font-weight: 700;
  color: var(--grey-light);
  background: var(--off-white);
  padding: 2px 8px;
  border-radius: 999px;
}

.kb-folder-btn.is-active .kb-count {
  background: var(--red-faint);
  color: var(--red);
}

.kb-tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.kb-tag-filter {
  font-family: var(--font);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--white);
  color: var(--grey);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.kb-tag-filter:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.kb-tag-filter.is-active {
  border-color: var(--red);
  background: var(--red-faint);
  color: var(--red);
}

/* ── Article list ── */
.kb-results-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.kb-results-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
}

.kb-results-count {
  font-size: 13px;
  color: var(--grey-light);
}

.kb-article-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.kb-card {
  display: block;
  padding: 18px 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.kb-card:hover {
  border-color: rgba(239, 65, 54, 0.3);
  box-shadow: 0 10px 28px rgba(12, 18, 28, 0.06);
  transform: translateY(-1px);
}

.kb-card-top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.kb-card-id {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--red);
  font-variant-numeric: tabular-nums;
}

.kb-card-folder {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--grey-light);
}

/* Card header: crumb left, audience flags far right */
.kb-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px 16px;
  margin-bottom: 10px;
}

.kb-card-crumb,
.kb-card-crumb * {
  text-transform: none !important;
  letter-spacing: normal;
}

.kb-card-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  min-width: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--grey-light);
}

.kb-card-crumb-folder {
  color: var(--ink);
  font-weight: 700;
}

.kb-card-crumb-sep {
  opacity: 0.45;
  font-weight: 500;
}

.kb-card-crumb-id {
  color: var(--red);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.kb-card-audiences {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  flex-shrink: 0;
  margin: 0;
  max-width: 55%;
}

.kb-card-audiences .kb-audience-flags {
  justify-content: flex-end;
}

/* Audience flags — uniform pills, distinct colors */
.kb-audience-flags {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.kb-audience-flag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  min-height: 24px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: none;
  line-height: 1.2;
  border: 1px solid transparent;
  white-space: nowrap;
  background: rgba(100, 116, 139, 0.1);
  color: #475569;
  border-color: rgba(100, 116, 139, 0.22);
}

.kb-audience-flag[data-audience="matrix-users"] {
  background: rgba(37, 99, 235, 0.12);
  color: #1d4ed8;
  border-color: rgba(37, 99, 235, 0.28);
}

.kb-audience-flag[data-audience="broker"] {
  background: rgba(180, 83, 9, 0.12);
  color: #b45309;
  border-color: rgba(180, 83, 9, 0.28);
}

.kb-audience-flag[data-audience="bridge-authority"] {
  background: rgba(14, 165, 233, 0.14);
  color: #0369a1;
  border-color: rgba(14, 165, 233, 0.32);
}

.kb-audience-flag[data-audience="realtor"] {
  background: rgba(185, 28, 28, 0.12);
  color: #b91c1c;
  border-color: rgba(185, 28, 28, 0.28);
}

.kb-audience-flag[data-audience="technology-partners"] {
  background: rgba(124, 58, 237, 0.12);
  color: #6d28d9;
  border-color: rgba(124, 58, 237, 0.28);
}

.kb-audience-flag[data-audience="association-staff"] {
  background: rgba(13, 148, 136, 0.12);
  color: #0f766e;
  border-color: rgba(13, 148, 136, 0.28);
}

.kb-article-header .kb-audience-flags {
  margin: 0;
}

.kb-article-header .kb-audience-flag {
  min-height: 26px;
  font-size: 11.5px;
  padding: 4px 11px;
}

@media (max-width: 560px) {
  .kb-card-head {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .kb-card-audiences {
    max-width: none;
    justify-content: flex-start;
  }

  .kb-card-audiences .kb-audience-flags {
    justify-content: flex-start;
  }
}

.kb-article-audience {
  margin-top: 14px;
}

.kb-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.35;
  margin: 0 0 6px;
}

.kb-card-summary {
  font-size: 13.5px;
  color: var(--grey);
  line-height: 1.55;
  margin: 0;
}

.kb-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

/* ── Tags (shared) ── */
.kb-tag {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.02em;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--off-white);
  color: var(--grey);
  border: 1px solid var(--border);
}

.kb-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

/* ── Empty / loading / error ── */
.kb-empty,
.kb-loading,
.kb-error {
  padding: 36px 20px;
  text-align: center;
  color: var(--grey);
  font-size: 14px;
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: 14px;
}

.kb-error {
  color: var(--red);
  border-color: rgba(239, 65, 54, 0.25);
}

/* ── Article page ── */
.kb-article-wrap {
  max-width: 760px;
}

.kb-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  font-size: 13px;
  color: var(--grey-light);
  margin-bottom: 28px;
  font-weight: 600;
}

.kb-breadcrumb-folder {
  color: var(--ink);
  font-weight: 750;
  letter-spacing: normal;
  text-transform: none !important;
  font-size: 13px;
}

.kb-breadcrumb-id {
  color: var(--red);
  font-weight: 750;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

.kb-breadcrumb a {
  color: var(--grey);
  font-weight: 600;
}

.kb-breadcrumb a:hover {
  color: var(--red);
}

.kb-bc-sep {
  opacity: 0.5;
}

.kb-article-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.kb-article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--grey-light);
  margin: 0 0 14px;
}

.kb-article-updated {
  font-weight: 600;
  letter-spacing: 0.01em;
}

.kb-article-id {
  font-weight: 700;
  color: var(--red);
  letter-spacing: 0.04em;
}

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

.kb-article-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin: 0;
}

.kb-article-summary {
  font-size: 16px;
  color: var(--grey);
  line-height: 1.65;
  margin: 0;
  max-width: 560px;
}

.kb-article-body {
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink);
}

.kb-article-body h2 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  letter-spacing: 0.01em;
  margin: 36px 0 12px;
  line-height: 1.15;
}

.kb-article-body h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 28px 0 10px;
}

.kb-article-body p {
  margin: 0 0 14px;
}

.kb-article-body ul,
.kb-article-body ol {
  margin: 0 0 16px;
  padding-left: 1.35em;
  list-style: disc;
}

.kb-article-body ol {
  list-style: decimal;
}

.kb-article-body li {
  margin-bottom: 6px;
}

/* Optional steps: grey “Optional” label; list numbers stay full-contrast */
.kb-article-body li.kb-step-optional > em:first-child {
  color: #8b9096;
  font-style: normal;
  font-weight: 600;
}

.kb-article-body a {
  color: var(--red);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.kb-article-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: var(--off-white);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.kb-article-body pre {
  background: var(--ink);
  color: #f2f2f2;
  padding: 16px 18px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.55;
}

.kb-article-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
}

.kb-article-body blockquote {
  margin: 0 0 18px;
  padding: 12px 16px;
  border-left: 3px solid var(--red);
  background: var(--red-faint);
  color: var(--grey);
}

.kb-article-body img {
  border-radius: 10px;
  margin: 12px 0 18px;
  border: 1px solid var(--border);
}

.kb-article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 18px;
  font-size: 14px;
}

.kb-article-body th,
.kb-article-body td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
}

.kb-article-body th {
  background: var(--off-white);
  font-weight: 700;
}

.kb-article-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.kb-back-link {
  font-size: 14px;
  font-weight: 650;
  color: var(--grey);
}

.kb-back-link:hover {
  color: var(--red);
}

.kb-not-found {
  font-size: 18px;
  color: var(--grey);
  margin: 48px 0 24px;
}

/* Full site footer on all KB pages (catalog + articles) — inherit styles.css #footer */

/* Matrix article disclaimers (uploaded body fragments) */
.kb-disclaimer {
  margin: 1.25rem 0 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  line-height: 1.45;
  color: var(--grey);
  background: var(--white);
  border-left: 3px solid var(--border);
  border-radius: 0 6px 6px 0;
}