/* ============================================================
   VISUALIZE AI - 3D Scene Styles
   Detail panel, 3D controls, axis legend, toggle button
   ============================================================ */

/* Three.js canvas — absolute overlay on graph-container */
#three-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;  /* Prevent scroll interference on mobile */
}

/* ---- Axis Legend ---- */
.axis-legend {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: none;           /* shown via JS */
  align-items: center;
  gap: 4px;
  padding: 5px 14px;
  background: rgba(26,26,26,0.75);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  font-size: 0.72rem;
  color: #a0a0a0;
  letter-spacing: 0.03em;
  pointer-events: none;
  z-index: 20;
  backdrop-filter: blur(4px);
  white-space: nowrap;
}

/* ---- View Toggle Button ---- */
.view-toggle-group {
  display: inline-flex;
  align-items: center;
  margin-left: 12px;
}

.view-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: 0.8rem;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  font-family: var(--font-sans);
}

.view-toggle-btn:hover {
  background: rgba(33,150,243,0.15);
  border-color: var(--accent-blue);
}

.view-toggle-btn[aria-pressed="true"] {
  background: rgba(33,150,243,0.18);
  border-color: var(--accent-blue);
  color: #64B5F6;
}

.view-toggle-icon {
  font-size: 1rem;
  line-height: 1;
}

/* ---- 3D Controls Panel ---- */
.controls-3d {
  display: none;   /* shown via JS when 3D active */
  align-items: center;
  gap: 16px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.ctrl-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.ctrl-slider {
  width: 100px;
  height: 4px;
  accent-color: var(--accent-blue);
  cursor: pointer;
}

/* ---- Detail Panel ---- */
.detail-panel {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 340px;
  max-height: calc(100% - 24px);
  overflow-y: auto;
  display: none;   /* shown via JS */
  flex-direction: column;
  background: rgba(30,30,30,0.96);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  z-index: 30;
  padding: 16px;
}

.detail-panel-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 26px;
  height: 26px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: background var(--transition-fast);
}

.detail-panel-close:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}

.detail-panel-content {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 4px;
  padding-right: 20px;  /* avoid overlap with close btn */
}

.dp-layer-badge {
  display: inline-flex;
  align-self: flex-start;
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  font-weight: 600;
}

.dp-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
  margin: 0;
}

.dp-org {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.dp-date {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.dp-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
  padding: 10px;
  background: rgba(255,255,255,0.04);
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.07);
}

.dp-meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dp-meta-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dp-meta-value {
  font-size: 0.82rem;
  color: var(--text-primary);
  font-weight: 500;
}

.dp-section {
  padding: 8px 0;
  border-top: 1px solid rgba(255,255,255,0.07);
}

.dp-section-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.dp-section-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.dp-section-notable .dp-section-text {
  color: #FFD54F;  /* warm highlight for notable achievements */
}

.dp-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-top: 4px;
}

.dp-tag {
  padding: 2px 8px;
  background: rgba(255,255,255,0.07);
  border-radius: 10px;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: capitalize;
}

/* Mobile: full-width panel below chart */
@media (max-width: 600px) {
  .detail-panel {
    position: relative;
    top: auto;
    right: auto;
    width: 100%;
    max-height: 280px;
    border-radius: 0;
    border-left: none;
    border-right: none;
    border-bottom: none;
    margin-top: 0;
  }

  .ctrl-slider {
    width: 70px;
  }

  .controls-3d {
    gap: 10px;
    padding: 6px 10px;
  }

  #three-canvas {
    touch-action: none;
  }
}

/* §21.3 — Axis legend hidden on very small screens */
@media (max-width: 480px) {
  .axis-legend { display: none !important; }
}

/* ============================================================
   Edge Relationship Toggles
   ============================================================ */

.toggle-group {
  display: none;   /* shown via JS when 3D active */
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
}

.toggle-group-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.edge-toggles {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.edge-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  cursor: pointer;
  user-select: none;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.edge-toggle .dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--dot-color, #888);
  opacity: 0.5;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.edge-toggle.active {
  color: var(--text-primary);
  border-color: var(--dot-color, var(--border-light));
  background: rgba(255,255,255,0.07);  /* fallback */
}

.edge-toggle.active .dot {
  opacity: 1;
}

.edge-toggle:hover {
  border-color: var(--dot-color, var(--border-light));
  color: var(--text-primary);
}

/* ============================================================
   Detail Panel — Connected Edges Section
   ============================================================ */

.dp-edges-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
  padding-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.07);
}

.dp-edge-group {
  border-left: 3px solid;
  padding-left: 8px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.dp-edge-group-header {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.dp-connected-node {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 3px;
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.dp-connected-node:hover {
  background: rgba(255,255,255,0.07);
  color: var(--text-primary);
}

.dp-edge-arrow {
  font-size: 0.75rem;
  flex-shrink: 0;
}

.dp-node-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dp-edge-more {
  font-size: 0.7rem;
  color: var(--text-muted);
  padding-left: 4px;
  font-style: italic;
}

/* ============================================================
   Transformer intro tooltip keyframe
   ============================================================ */

@keyframes fadeInOut {
  0%   { opacity: 0; transform: translate(-50%, -90px); }
  15%  { opacity: 1; transform: translate(-50%, -80px); }
  75%  { opacity: 1; transform: translate(-50%, -80px); }
  100% { opacity: 0; transform: translate(-50%, -70px); }
}

/* Mobile: hide edge toggles on very small screens to save space */
@media (max-width: 480px) {
  .edge-toggles {
    gap: 4px;
  }
  .edge-toggle {
    padding: 2px 7px;
    font-size: 0.68rem;
  }
}