/* SecpralLearn — components.css */

/* ── Clickable compat chip (in product modal) ─────────────────────────── */
.compat-chip {
  cursor: pointer;
  user-select: none;
}
.compat-chip:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,.45);
}
.compat-chip:active {
  transform: translateY(0);
}

/* ── Category Card (index.html) ───────────────────────────────────────── */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 48px 0;
}

.cat-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 32px;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 220px;
}

.cat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top left, var(--accent-color, transparent) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.cat-card:hover {
  transform: translateY(-4px) scale(1.01);
  border-color: var(--accent-color, var(--color-border-hover));
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px var(--accent-color, transparent), 0 0 40px color-mix(in srgb, var(--accent-color, transparent) 20%, transparent);
}

.cat-card:hover::before { opacity: 0.08; }

.cat-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--accent-color, var(--color-accent)) 15%, transparent);
  color: var(--accent-color, var(--color-accent));
  flex-shrink: 0;
  transition: background var(--transition-base);
}

.cat-card-body { flex: 1; }

.cat-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-text);
}

.cat-card-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.cat-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.cat-card-stats {
  display: flex;
  gap: 16px;
}

.cat-card-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cat-card-stat-value {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--accent-color, var(--color-accent));
}

.cat-card-stat-label {
  font-size: 0.7rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Category Header (hub pages) ─────────────────────────────────────── */
.cat-header {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--accent) 12%, var(--color-surface)) 0%,
    var(--color-surface) 60%
  );
  border-bottom: 1px solid var(--color-border);
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}

.cat-header::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 20%, transparent), transparent 70%);
  pointer-events: none;
}

.cat-header-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--accent) 20%, transparent);
  color: var(--accent);
  flex-shrink: 0;
}

.cat-header-title { color: var(--color-text); margin-bottom: 4px; }
.cat-header-sub { color: var(--color-text-muted); font-size: 1rem; }

.cat-header-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.cat-stat {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.cat-stat strong { color: var(--color-text); font-weight: 600; }

/* ── Tab Navigation ───────────────────────────────────────────────────── */
.tab-nav {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 60px;
  z-index: 90;
}

.tab-nav-inner {
  display: flex;
  overflow-x: auto;
  scrollbar-width: none;
}
.tab-nav-inner::-webkit-scrollbar { display: none; }

.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  transition: all var(--transition-fast);
  min-height: 52px;
  flex-shrink: 0;
}

.tab-btn:hover { color: var(--color-text); background: var(--color-surface-2); }

.tab-btn.active {
  color: var(--accent, var(--color-accent));
  border-bottom-color: var(--accent, var(--color-accent));
}

/* ── Products Layout ──────────────────────────────────────────────────── */
.products-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  padding: 24px 0;
}

/* ── Filter Sidebar ───────────────────────────────────────────────────── */
.filter-sidebar {
  position: sticky;
  top: 112px;
  max-height: calc(100vh - 130px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.filter-group {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
}

.filter-group-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
  margin-bottom: 12px;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
  min-height: 36px;
}
.filter-option:hover { color: var(--color-text); background: var(--color-surface-2); }
.filter-option.active { color: var(--accent, var(--color-accent)); background: color-mix(in srgb, var(--accent, var(--color-accent)) 10%, transparent); }

.filter-option input[type="checkbox"] {
  accent-color: var(--accent, var(--color-accent));
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.filter-count {
  margin-left: auto;
  font-size: 0.7rem;
  background: var(--color-surface-3);
  padding: 1px 6px;
  border-radius: 999px;
}

/* ── Product Grid ─────────────────────────────────────────────────────── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  align-content: start;
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.product-card:hover {
  border-color: var(--accent, var(--color-border-hover));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.product-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.product-code {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
}

.product-brand-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}

.product-name {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.product-desc {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}

.product-type-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--color-surface-3);
  color: var(--color-text-muted);
}

/* ── Brand Cards ─────────────────────────────────────────────────────── */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  padding: 24px 0;
}

.brand-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.brand-card:hover {
  border-color: var(--brand-color, var(--color-border-hover));
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.brand-card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.brand-logo-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  flex-shrink: 0;
  letter-spacing: -0.02em;
}

.brand-card-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.brand-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.brand-stat-val { font-size: 1rem; font-weight: 700; }
.brand-stat-lbl { font-size: 0.7rem; color: var(--color-text-dim); }

/* ── Compatibility Matrix ─────────────────────────────────────────────── */
.compat-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.compat-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  white-space: nowrap;
}

.compat-table th, .compat-table td {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  text-align: center;
}

.compat-table thead th {
  background: var(--color-surface-2);
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 2;
}

.compat-table tbody td:first-child {
  background: var(--color-surface-2);
  font-weight: 600;
  text-align: left;
  position: sticky;
  left: 0;
  z-index: 1;
}

.compat-table thead th:first-child {
  position: sticky;
  left: 0;
  z-index: 3;
}

.compat-icon { font-size: 1.1rem; }
.compat-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  max-width: 200px;
  white-space: normal;
  text-align: left;
}

/* ── Glossary ─────────────────────────────────────────────────────────── */
.glossary-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.glossary-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}
.glossary-item:last-child { border-bottom: none; }

.glossary-term {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.glossary-def {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 8px;
}

.glossary-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

/* ── Quiz Engine ──────────────────────────────────────────────────────── */
.quiz-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 0;
}

.quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.quiz-progress-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.quiz-question-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 16px;
}

.quiz-q-meta {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.quiz-question-text {
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.6;
  margin-bottom: 24px;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quiz-feedback {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  line-height: 1.5;
  margin-top: 16px;
  border: 1px solid;
}
.quiz-feedback.correct {
  background: rgba(34,197,94,0.08);
  border-color: rgba(34,197,94,0.3);
  color: #86efac;
}
.quiz-feedback.incorrect {
  background: rgba(239,68,68,0.08);
  border-color: rgba(239,68,68,0.3);
  color: #fca5a5;
}

.quiz-score-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 48px 32px;
  text-align: center;
}

.quiz-score-number {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 8px;
}

/* ── Product Detail Modal ─────────────────────────────────────────────── */
.prod-detail-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.prod-detail-section {
  margin-top: 24px;
}
.prod-detail-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

/* ── Brand Detail View ────────────────────────────────────────────────── */
.brand-detail-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 24px;
}

.brand-detail-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.brand-detail-stat {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}
.brand-detail-stat-val { font-size: 1.5rem; font-weight: 700; }
.brand-detail-stat-lbl { font-size: 0.75rem; color: var(--color-text-muted); margin-top: 4px; }

/* ── EN54 / Standard Cert Pills ───────────────────────────────────────── */
.en54-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.25);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fca5a5;
}

/* ── Admin Panel ─────────────────────────────────────────────────────── */
.admin-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  padding: 24px 0;
  min-height: calc(100vh - 120px);
}

.admin-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.admin-select {
  width: 100%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 10px 14px;
  cursor: pointer;
  min-height: 44px;
}
.admin-select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.json-editor {
  width: 100%;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 16px;
  resize: vertical;
  min-height: 500px;
  line-height: 1.6;
}
.json-editor:focus {
  outline: none;
  border-color: var(--color-accent);
}
.json-editor.error { border-color: var(--color-danger); }
.json-editor.valid { border-color: var(--color-success); }