/* ============================================
   glossary.css — Concept Encyclopedia styles
   ============================================ */

.glossary-section {
  max-width: 960px;
  margin: 0 auto;
  padding: calc(var(--header-height) + 24px) 24px 48px;
  animation: fadeIn 0.3s ease;
}

/* Header */
.glossary-header {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-primary);
}

.glossary-header h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.glossary-header p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

/* Search */
.glossary-search-wrapper {
  position: relative;
  max-width: 400px;
}

.glossary-search {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.glossary-search:focus {
  border-color: var(--accent-blue);
}

.glossary-search::placeholder {
  color: var(--text-muted);
}

/* Filters */
.glossary-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.glossary-filter-btn {
  padding: 4px 12px;
  border-radius: 16px;
  border: 1px solid var(--border-primary);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.glossary-filter-btn:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.glossary-filter-btn.active {
  background: rgba(188, 140, 255, 0.15);
  border-color: var(--accent-purple);
  color: var(--accent-purple);
}

/* Card list */
.glossary-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.glossary-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--card-radius);
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.glossary-card:hover {
  border-color: var(--text-muted);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.glossary-card-info {
  flex: 1;
  min-width: 0;
}

.glossary-card-term {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.glossary-card-def {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.glossary-abbr-badge {
  font-size: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(188, 140, 255, 0.15);
  color: var(--accent-purple);
  white-space: nowrap;
  flex-shrink: 0;
}

.glossary-cat-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(88, 166, 255, 0.1);
  color: var(--accent-blue);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Empty state */
.glossary-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 60px 20px;
  color: var(--text-muted);
  text-align: center;
}

/* Detail view */
.glossary-detail-header {
  margin-bottom: 24px;
}

.glossary-detail-term {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.glossary-detail-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.glossary-detail-body {
  background: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: 10px;
  padding: 24px;
  margin-bottom: 20px;
}

.glossary-detail-body h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.glossary-detail-definition {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.glossary-key-points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.glossary-key-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.glossary-key-points li::before {
  content: '\2713';
  color: var(--accent-green);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Diagram */
.glossary-detail-diagram {
  background: var(--bg-primary);
  border: 1px solid var(--border-secondary);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
}

.glossary-detail-diagram svg {
  max-width: 100%;
  height: auto;
}

/* Related terms */
.glossary-related {
  margin-bottom: 20px;
}

.glossary-related h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.glossary-related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.glossary-related-badge {
  padding: 6px 14px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-primary);
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.glossary-related-badge:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(88, 166, 255, 0.08);
}

/* Responsive */
@media (max-width: 768px) {
  .glossary-section {
    padding: calc(var(--header-height) + 16px) 16px 32px;
  }

  .glossary-card {
    flex-direction: column;
    align-items: flex-start;
  }
}