/* =================================================
   MECASIMETRA — Glossary / Knowledge Graph Styles
   Theme: Black neon + magenta
   ================================================= */

/* ── GLOSSARY HERO ─────────────────────────────── */
.glossary-hero {
  padding: 140px 0 60px;
  position: relative;
  z-index: 1;
  text-align: center;
}

.glossary-hero-inner {
  max-width: 760px;
  margin: 0 auto;
}

.glossary-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.2rem;
}

.glossary-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.glossary-subtitle kbd {
  display: inline-block;
  padding: 0.15em 0.45em;
  border: 1px solid var(--border-accent);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.82em;
  color: var(--accent);
  background: var(--accent-dim);
}

.glossary-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.glossary-meta-icon {
  color: var(--accent);
  font-size: 1.1em;
}

.glossary-meta-sep { opacity: 0.4; }

.glossary-meta code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent-2);
  background: rgba(0, 232, 255, 0.08);
  padding: 0.1em 0.5em;
  border-radius: 4px;
}

/* ── GLOSSARY LAYOUT ───────────────────────────── */
.glossary-section {
  padding: 20px 0 80px;
  position: relative;
  z-index: 1;
}

.glossary-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 2rem;
  align-items: start;
  min-height: 600px;
}

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

/* ── SIDEBAR ───────────────────────────────────── */
.glossary-sidebar {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: sticky;
  top: 100px;
  max-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
}

.sidebar-search-wrap {
  position: relative;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-search {
  width: 100%;
  background: rgba(247, 0, 255, 0.05);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  padding: 0.65rem 2.4rem 0.65rem 0.9rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  transition: var(--transition);
}

.sidebar-search::placeholder { color: var(--text-muted); }
.sidebar-search:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(247, 0, 255, 0.12);
}

.search-icon {
  position: absolute;
  right: 1.7rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
  pointer-events: none;
}

.glossary-loading {
  padding: 1.5rem 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

/* ── TERM LIST ─────────────────────────────────── */
.term-list {
  list-style: none;
  padding: 0;
  margin: 0;
  overflow-y: auto;
  flex: 1;
}

.term-list::-webkit-scrollbar { width: 3px; }
.term-list::-webkit-scrollbar-thumb { background: var(--accent-dim); border-radius: 2px; }

.term-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), border-left var(--transition);
  border-left: 3px solid transparent;
  animation: fadeInUp 0.3s ease both;
}

.term-item:hover,
.term-item:focus {
  background: rgba(247, 0, 255, 0.06);
  border-left-color: var(--accent);
  outline: none;
}

.term-item.active {
  background: rgba(247, 0, 255, 0.1);
  border-left-color: var(--accent);
}

.term-symbol {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent);
  min-width: 1.8rem;
  text-align: center;
}

.term-item-label {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.term-item-cat {
  font-size: 0.7rem;
  padding: 0.1em 0.45em;
  border-radius: 3px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.term-empty {
  padding: 1.5rem 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Category colors */
.tag-cat-foundation  { background: rgba(247,0,255,0.15); color: #f700ff; }
.tag-cat-measurement { background: rgba(0,232,255,0.15); color: #00e8ff; }
.tag-cat-core-metric { background: rgba(247,0,255,0.2);  color: #ff44ff; }
.tag-cat-governance  { background: rgba(255,180,0,0.15); color: #ffb400; }
.tag-cat-discipline  { background: rgba(100,255,180,0.12); color: #44ffb4; }

/* ── MAIN PANEL ────────────────────────────────── */
.glossary-main {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-height: 500px;
}

/* ── BREADCRUMBS ───────────────────────────────── */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
  min-height: 2rem;
}

.breadcrumb-item {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.82rem;
  cursor: pointer;
  padding: 0.2em 0.4em;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
  font-family: var(--font-mono);
}

.breadcrumb-item:hover {
  color: var(--accent);
  background: var(--accent-dim);
}

.breadcrumb-active {
  color: var(--accent);
  cursor: default;
  font-weight: 600;
}

.breadcrumb-active:hover {
  background: none;
}

.breadcrumb-sep {
  color: var(--text-muted);
  font-size: 0.85rem;
  user-select: none;
}

/* ── BACK BUTTON ───────────────────────────────── */
.glossary-back-btn {
  display: none;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.4em 0.9em;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
  align-self: flex-start;
  font-family: var(--font-sans);
}

.glossary-back-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── ANCESTOR GRAPH ────────────────────────────── */
.graph-wrap {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

.ancestor-graph {
  width: 100%;
  height: 280px;
  display: block;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.ancestor-graph.graph-visible {
  opacity: 1;
}

/* Graph elements */
.graph-edge {
  fill: none;
  stroke: rgba(247, 0, 255, 0.25);
  stroke-width: 1.5;
  stroke-dasharray: 6 4;
  animation: dashMove 12s linear infinite;
}

@keyframes dashMove {
  to { stroke-dashoffset: -100; }
}

.graph-node {
  fill: var(--bg-secondary);
  stroke-width: 2;
  transition: r 0.3s ease;
  cursor: pointer;
}

.graph-node:hover { filter: brightness(1.3); }

.graph-node-active {
  stroke: var(--accent);
  fill: rgba(247, 0, 255, 0.15);
  filter: url(#glow-filter);
}

.graph-node-parent {
  stroke: var(--accent-2);
  fill: rgba(0, 232, 255, 0.08);
}

.graph-label {
  fill: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 12px;
  pointer-events: none;
  font-weight: 600;
}

.graph-label-active {
  fill: var(--accent);
  font-size: 13px;
}

.graph-sublabel {
  fill: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 10px;
  pointer-events: none;
}

/* ── TERM DETAIL PANEL ─────────────────────────── */
.term-detail {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.term-detail.detail-visible {
  opacity: 1;
  transform: translateY(0);
}

.term-detail-empty {
  text-align: center;
  padding: 3rem 1rem;
}

.empty-symbol {
  font-size: 3.5rem;
  color: var(--accent-dim);
  margin-bottom: 1rem;
}

.empty-title {
  font-size: 1.4rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.empty-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 380px;
  margin: 0 auto 1.5rem;
}

.empty-shortcuts {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.empty-shortcuts kbd {
  display: inline-block;
  padding: 0.1em 0.4em;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent);
}

/* Detail content */
.detail-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.detail-symbol {
  font-size: 2.8rem;
  font-family: var(--font-mono);
  color: var(--accent);
  line-height: 1;
  text-shadow: 0 0 20px rgba(247, 0, 255, 0.6);
  min-width: 3rem;
  text-align: center;
  padding-top: 0.15rem;
}

.detail-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 0.4rem;
}

.detail-cat {
  font-size: 0.72rem;
  padding: 0.15em 0.55em;
  border-radius: 4px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.detail-short {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.detail-section {
  margin-bottom: 1.5rem;
}

.detail-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  font-family: var(--font-mono);
}

.detail-definition {
  font-size: 0.925rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.detail-formula {
  display: block;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent-2);
  background: rgba(0, 232, 255, 0.06);
  border: 1px solid rgba(0, 232, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.1rem;
  letter-spacing: 0.02em;
}

.ancestor-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.ancestor-chip,
.related-chip {
  background: rgba(247, 0, 255, 0.08);
  border: 1px solid rgba(247, 0, 255, 0.3);
  border-radius: 20px;
  color: var(--accent);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  padding: 0.3em 0.9em;
  cursor: pointer;
  transition: var(--transition);
}

.ancestor-chip:hover,
.related-chip:hover {
  background: rgba(247, 0, 255, 0.18);
  box-shadow: 0 0 12px rgba(247, 0, 255, 0.3);
  transform: translateY(-1px);
}

.related-chip {
  background: rgba(0, 232, 255, 0.08);
  border-color: rgba(0, 232, 255, 0.3);
  color: var(--accent-2);
}

.related-chip:hover {
  background: rgba(0, 232, 255, 0.18);
  box-shadow: 0 0 12px rgba(0, 232, 255, 0.3);
}

.no-ancestors {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ── CONTRIBUTE SECTION ────────────────────────── */
.contribute-section {
  padding: 60px 0;
  position: relative;
  z-index: 1;
}

.contribute-inner {
  background: linear-gradient(
    135deg,
    rgba(247, 0, 255, 0.06) 0%,
    rgba(0, 232, 255, 0.06) 100%
  );
  border: 1px solid var(--border-accent);
  border-radius: var(--radius);
  padding: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.contribute-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--text-primary);
}

.contribute-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
}

.contribute-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  flex-shrink: 0;
}

/* ── ANIMATIONS ────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Active nav link */
.nav-active {
  color: var(--accent) !important;
}

/* ── REDUCED MOTION ────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .ancestor-graph,
  .term-detail,
  .term-item,
  .graph-edge { animation: none !important; transition: none !important; }
  .ancestor-graph { opacity: 1; }
  .term-detail { opacity: 1; transform: none; }
}