/* ═══════════════════════════════════════════════════════════════
   §KB  KNOWLEDGE BASE — Article Detail & Category Detail
   Classes: .kb-ad-*, .kb-cd-*, .kb-trail-*, .kb-btn, .kb-reveal
   ═══════════════════════════════════════════════════════════════ */

/* ── Shared reveal animation ─────────────────────────────────── */
.kb-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--atq-ease), transform 0.5s var(--atq-ease);
}
.kb-reveal.kb-visible,
.kb-reveal.kb-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ── Shared button ───────────────────────────────────────────── */
.kb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--atq-radius-sm);
  font-family: var(--atq-font);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  border: none;
  transition: background 0.2s var(--atq-ease), transform 0.15s var(--atq-ease),
              box-shadow 0.2s var(--atq-ease);
}
.kb-btn:hover  { text-decoration: none; }
.kb-btn:active { transform: scale(0.97); }
.kb-btn--primary {
  background: var(--atq-primary);
  color: #ffffff;
}
.kb-btn--primary:hover {
  background: var(--atq-primary-dark);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37,99,235,0.35);
  transform: translateY(-1px);
}
.kb-btn--outline {
  background: transparent;
  color: var(--atq-primary);
  border: 1.5px solid var(--atq-primary);
}
.kb-btn--outline:hover {
  background: var(--atq-primary-light);
  color: var(--atq-primary-dark);
}
html[data-theme="dark"] .kb-btn--primary:hover {
  box-shadow: 0 4px 14px rgba(167,139,250,0.3);
}

/* ═══════════════════════════════════════════════════════════════
   ARTICLE DETAIL — Hero
   ═══════════════════════════════════════════════════════════════ */
.kb-ad-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 40%, #2563eb 100%);
  padding: 56px 24px 52px;
  color: #ffffff;
}
html[data-theme="dark"] .kb-ad-hero {
  background: linear-gradient(135deg, #0a0a14 0%, #111827 50%, #1e293b 100%);
  border-bottom: 1px solid var(--atq-border);
}

.kb-ad-hero__orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(60px);
  opacity: 0.18;
}
.kb-ad-hero__orb--1 {
  width: 480px; height: 480px;
  background: #93c5fd;
  top: -180px; right: -100px;
}
.kb-ad-hero__orb--2 {
  width: 320px; height: 320px;
  background: #6366f1;
  bottom: -120px; left: 8%;
}
.kb-ad-hero__dot-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.12) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.kb-ad-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin: 0 auto;
}

/* Breadcrumb trail */
.kb-ad-hero__trail {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 18px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s var(--atq-ease), transform 0.4s var(--atq-ease);
}
.kb-ad-hero__trail.kb-visible {
  opacity: 1;
  transform: translateY(0);
}
.kb-trail-link {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  transition: color 0.15s;
}
.kb-trail-link:hover { color: #ffffff; text-decoration: none; }
.kb-trail-sep { color: rgba(255,255,255,0.45); font-size: 1rem; }
.kb-trail-current {
  color: rgba(255,255,255,0.9);
  max-width: 420px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Title */
.kb-ad-hero__title {
  font-size: clamp(1.625rem, 3.5vw, 2.375rem);
  font-weight: 700;
  line-height: 1.2;
  color: #ffffff;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
  transition-delay: 60ms;
}

/* Meta row */
.kb-ad-hero__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  transition-delay: 120ms;
}
.kb-ad-meta-item {
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 100px;
  padding: 3px 12px;
  letter-spacing: 0.01em;
}
.kb-ad-meta-sep { color: rgba(255,255,255,0.35); }

/* ═══════════════════════════════════════════════════════════════
   ARTICLE DETAIL — Layout (two-column)
   ═══════════════════════════════════════════════════════════════ */
.kb-ad-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  max-width: min(1600px, 100%);
  margin: 40px auto 64px;
  padding: 0 24px;
  align-items: start;
}
@media (max-width: 900px) {
  .kb-ad-layout {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }
}

/* ── Article body ─────────────────────────────────────────────── */
.kb-ad-body {
  background: var(--atq-surface);
  border: 1px solid var(--atq-border);
  border-radius: var(--atq-radius-lg);
  padding: 40px 44px;
  box-shadow: var(--atq-shadow);
  font-family: var(--atq-font);
  min-width: 0;
}
@media (max-width: 600px) { .kb-ad-body { padding: 24px 20px; } }

/* Rich-text content scoping */
.kb-ad-body h1, .kb-ad-body h2, .kb-ad-body h3,
.kb-ad-body h4, .kb-ad-body h5, .kb-ad-body h6 {
  color: var(--atq-text);
  font-family: var(--atq-font);
  font-weight: 700;
  line-height: 1.25;
  margin: 1.75em 0 0.6em;
}
.kb-ad-body h1 { font-size: 1.75rem; margin-top: 0; border-bottom: 2px solid var(--atq-border); padding-bottom: 0.4em; }
.kb-ad-body h2 { font-size: 1.375rem; }
.kb-ad-body h3 { font-size: 1.125rem; }
.kb-ad-body h4 { font-size: 1rem; }
.kb-ad-body > :first-child { margin-top: 0 !important; }

.kb-ad-body p {
  color: var(--atq-text-secondary);
  font-size: 1rem;
  line-height: 1.75;
  margin: 0 0 1em;
}
.kb-ad-body a {
  color: var(--atq-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s, color 0.15s;
}
.kb-ad-body a:hover {
  color: var(--atq-primary-dark);
  border-bottom-color: var(--atq-primary);
  text-decoration: none;
}
html[data-theme="dark"] .kb-ad-body a:hover { border-bottom-color: var(--atq-accent); }

.kb-ad-body ul, .kb-ad-body ol {
  margin: 0 0 1em 1.5em;
  padding: 0;
  color: var(--atq-text-secondary);
  line-height: 1.75;
}
.kb-ad-body li { margin-bottom: 0.35em; }

.kb-ad-body strong, .kb-ad-body b { color: var(--atq-text); font-weight: 600; }
.kb-ad-body em { font-style: italic; }

/* Inline code */
.kb-ad-body code {
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 0.875em;
  background: var(--atq-bg);
  color: var(--atq-primary);
  border: 1px solid var(--atq-border);
  border-radius: 4px;
  padding: 1px 6px;
}
/* Code blocks */
.kb-ad-body pre {
  background: #0f172a;
  border-radius: var(--atq-radius-sm);
  padding: 20px 24px;
  overflow-x: auto;
  margin: 0 0 1.25em;
  border: 1px solid rgba(255,255,255,0.07);
}
.kb-ad-body pre code {
  background: none;
  border: none;
  color: #e2e8f0;
  font-size: 0.85rem;
  padding: 0;
  border-radius: 0;
}
html[data-theme="dark"] .kb-ad-body pre { background: #0a0a0a; }

/* Blockquote */
.kb-ad-body blockquote {
  margin: 1.25em 0;
  padding: 12px 20px 12px 18px;
  border-left: 4px solid var(--atq-primary);
  background: var(--atq-primary-light);
  border-radius: 0 var(--atq-radius-sm) var(--atq-radius-sm) 0;
  color: var(--atq-text-secondary);
  font-style: italic;
}
html[data-theme="dark"] .kb-ad-body blockquote {
  background: rgba(167,139,250,0.08);
  border-left-color: var(--atq-primary);
}

/* Tables */
.kb-ad-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 0 0 1.25em;
  overflow: hidden;
  border-radius: var(--atq-radius-sm);
  border: 1px solid var(--atq-border);
}
.kb-ad-body thead tr { background: var(--atq-bg); }
.kb-ad-body thead th {
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--atq-text);
  border-bottom: 2px solid var(--atq-border);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.kb-ad-body tbody tr { border-bottom: 1px solid var(--atq-border-light); }
.kb-ad-body tbody tr:last-child { border-bottom: none; }
.kb-ad-body tbody tr:hover { background: var(--atq-surface-raised); }
.kb-ad-body tbody td { padding: 10px 14px; color: var(--atq-text-secondary); vertical-align: top; }
html[data-theme="dark"] .kb-ad-body thead tr { background: rgba(255,255,255,0.04); }
html[data-theme="dark"] .kb-ad-body tbody tr:hover { background: rgba(255,255,255,0.03); }

/* Images */
.kb-ad-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--atq-radius-sm);
  border: 1px solid var(--atq-border);
  margin: 0.5em 0;
  display: block;
}

/* Horizontal rule */
.kb-ad-body hr {
  border: none;
  border-top: 1px solid var(--atq-border);
  margin: 2em 0;
}

/* ── Sidebar ──────────────────────────────────────────────────── */
.kb-ad-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 88px;
}
@media (max-width: 900px) {
  .kb-ad-sidebar { position: static; }
}

/* Feedback card */
.kb-ad-feedback {
  background: var(--atq-surface);
  border: 1px solid var(--atq-border);
  border-radius: var(--atq-radius-lg);
  padding: 24px;
  box-shadow: var(--atq-shadow);
  transition-delay: 80ms;
}
.kb-ad-feedback__prompt {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--atq-text);
  margin: 0 0 16px;
  font-family: var(--atq-font);
}
.kb-ad-feedback__actions {
  display: flex;
  gap: 10px;
}
.kb-ad-feedback__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 14px;
  border-radius: var(--atq-radius-sm);
  font-family: var(--atq-font);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: 1.5px solid var(--atq-border);
  background: var(--atq-surface);
  color: var(--atq-text-secondary);
  transition: all 0.18s var(--atq-ease);
}
.kb-ad-feedback__btn:hover {
  border-color: var(--atq-primary);
  color: var(--atq-primary);
  background: var(--atq-primary-light);
  transform: translateY(-1px);
}
.kb-ad-feedback__btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.kb-ad-feedback__thanks {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--atq-success);
}

/* CTA card */
.kb-ad-cta {
  position: relative;
  overflow: hidden;
  background: linear-gradient(145deg, #1e3a8a 0%, #2563eb 100%);
  border-radius: var(--atq-radius-lg);
  padding: 28px 24px;
  color: #ffffff;
  box-shadow: var(--atq-shadow-md);
  transition-delay: 160ms;
}
html[data-theme="dark"] .kb-ad-cta {
  background: linear-gradient(145deg, #1e1b4b 0%, #312e81 100%);
}
.kb-ad-cta__glow {
  position: absolute;
  top: -50px; right: -50px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.kb-ad-cta__kicker {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin: 0 0 8px;
  font-family: var(--atq-font);
}
.kb-ad-cta__title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 10px;
  font-family: var(--atq-font);
  line-height: 1.3;
}
.kb-ad-cta__body {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.55;
  margin: 0 0 20px;
  font-family: var(--atq-font);
}
.kb-ad-cta .kb-btn--primary {
  background: rgba(255,255,255,0.15);
  border: 1.5px solid rgba(255,255,255,0.35);
  color: #ffffff;
  backdrop-filter: blur(8px);
  width: 100%;
  font-size: 0.9rem;
}
.kb-ad-cta .kb-btn--primary:hover {
  background: rgba(255,255,255,0.25);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0,0,0,0.25);
}

/* ═══════════════════════════════════════════════════════════════
   CATEGORY DETAIL — Article cards grid
   ═══════════════════════════════════════════════════════════════ */
#kbCatArticles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.kb-cd-article-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--atq-surface);
  border: 1px solid var(--atq-border);
  border-radius: var(--atq-radius);
  padding: 22px 24px;
  text-decoration: none;
  box-shadow: var(--atq-shadow);
  transition: transform 0.2s var(--atq-ease), box-shadow 0.2s var(--atq-ease),
              border-color 0.2s var(--atq-ease);
}
.kb-cd-article-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--atq-shadow-lg);
  border-color: var(--atq-primary);
  text-decoration: none;
}
.kb-cd-article-card__num {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--atq-primary);
  margin: 0;
  font-family: var(--atq-font);
}
html[data-theme="dark"] .kb-cd-article-card__num { color: var(--atq-accent); }
.kb-cd-article-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--atq-text);
  margin: 0;
  line-height: 1.4;
  font-family: var(--atq-font);
  transition: color 0.15s;
}
.kb-cd-article-card:hover .kb-cd-article-card__title { color: var(--atq-primary); }
html[data-theme="dark"] .kb-cd-article-card:hover .kb-cd-article-card__title { color: var(--atq-accent); }
.kb-cd-article-card__desc {
  font-size: 0.875rem;
  color: var(--atq-text-muted);
  margin: 0;
  line-height: 1.55;
  font-family: var(--atq-font);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.kb-cd-empty {
  grid-column: 1/-1;
  text-align: center;
  font-size: 1rem;
  color: var(--atq-text-muted);
  padding: 40px 24px;
  font-family: var(--atq-font);
}

/* ── Dark mode overrides ─────────────────────────────────────── */
html[data-theme="dark"] .kb-ad-body {
  background: var(--atq-surface);
  border-color: var(--atq-border);
}
html[data-theme="dark"] .kb-ad-feedback {
  background: var(--atq-surface);
  border-color: var(--atq-border);
}
html[data-theme="dark"] .kb-ad-feedback__btn {
  background: var(--atq-surface);
  border-color: var(--atq-border);
  color: var(--atq-text-secondary);
}
html[data-theme="dark"] .kb-ad-feedback__btn:hover {
  border-color: var(--atq-primary);
  color: var(--atq-primary);
  background: var(--atq-primary-light);
}
html[data-theme="dark"] .kb-cd-article-card {
  background: var(--atq-surface);
  border-color: var(--atq-border);
}
html[data-theme="dark"] .kb-cd-article-card:hover { border-color: var(--atq-primary); }
html[data-theme="dark"] .kb-ad-body code {
  background: rgba(255,255,255,0.06);
  color: var(--atq-accent);
  border-color: var(--atq-border);
}
html[data-theme="dark"] .kb-ad-body blockquote { color: var(--atq-text-secondary); }

/* ── KB search bar — prevent global dark-mode input overrides ── */
html[data-theme="dark"] #kbSearchInput,
html[data-theme="dark"] .kb-search-input,
html[data-theme="dark"] input.kb-search-input {
  background: transparent !important;
  background-color: transparent !important;
  border: none !important;
  border-color: transparent !important;
  box-shadow: none !important;
}
html[data-theme="dark"] .kb-search-bar,
html[data-theme="dark"] #kbSearchBar {
  border-radius: var(--kb-radius, 16px) !important;
  border: 1px solid rgba(255,255,255,0.10) !important;
}

/* ── Case-deflection search bar — prevent global dark-mode input overrides ── */
html[data-theme="dark"] .case-deflection .input-group input.form-control,
html[data-theme="dark"] .case-deflection input.form-control.subject,
html[data-theme="dark"] input.form-control.case-deflection {
  background: transparent !important;
  background-color: transparent !important;
  border: none !important;
  border-color: transparent !important;
  box-shadow: none !important;
}
html[data-theme="dark"] .case-deflection .input-group {
  background: var(--sp-surface-raised, #1a1a2e) !important;
  border: 1.5px solid var(--sp-border, rgba(255,255,255,0.10)) !important;
  border-radius: var(--sp-radius-sm, 12px) !important;
}

/* ──────────────────────────────────────────────────────────────
   Category Details – dark-mode overrides
   Phase 7A: merged from Category-Details template inline <style>
   ────────────────────────────────────────────────────────────── */
html[data-theme="dark"] body:has(.kb-cd-hero) {
  background-color: #060810 !important;
  background-image:
    radial-gradient(ellipse 70% 420px at 50% 100%, rgba(124,58,237,0.10), transparent) !important;
  background-repeat: no-repeat !important;
}
html[data-theme="dark"] .kb-cd-body {
  background: linear-gradient(180deg, rgba(10,16,32,0.7) 0%, rgba(10,16,32,0.3) 40%, transparent 100%) !important;
  border-radius: 24px 24px 0 0;
  margin-top: -1rem;
  padding-top: 3rem;
}
html[data-theme="dark"] .kb-cd-article-card {
  background: #1c2436 !important;
  border-color: rgba(138,180,255,.18) !important;
}
html[data-theme="dark"] .kb-cd-sidebar-section {
  background: #1c2436 !important;
  border-color: rgba(138,180,255,.18) !important;
}
html[data-theme="dark"] .kb-cd-article-card__num {
  color: #8ab4ff;
  background: rgba(138,180,255,.12);
  border-color: rgba(138,180,255,.22);
}
html[data-theme="dark"] .kb-cd-article-card:hover .kb-cd-article-card__title,
html[data-theme="dark"] .kb-cd-article-card:focus-visible .kb-cd-article-card__title {
  color: #8ab4ff;
}
html[data-theme="dark"] .kb-cd-article-card__desc {
  color: #8899b0;
}