.pointcloud-section {
  margin: 24px 0 32px;
}

.pointcloud-viewer-wrap {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(160deg, #0f172a 0%, #1e293b 55%, #0b1220 100%);
  border: 1px solid rgba(148, 163, 184, 0.18);
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.35);
  min-height: 520px;
}

.pointcloud-canvas-host {
  width: 100%;
  height: min(68vh, 640px);
  min-height: 480px;
}

.pointcloud-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: rgba(15, 23, 42, 0.92);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.pointcloud-toolbar-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.pointcloud-toolbar label {
  font-size: 13px;
  color: #94a3b8;
  margin-right: 4px;
}

.pointcloud-select {
  min-width: 200px;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid rgba(148, 163, 184, 0.25);
  background: #0f172a;
  color: #e2e8f0;
  font-size: 14px;
}

.pointcloud-mode-btn {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: transparent;
  color: #cbd5e1;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.pointcloud-mode-btn:hover {
  border-color: #38bdf8;
  color: #f8fafc;
}

.pointcloud-mode-btn.active {
  background: rgba(56, 189, 248, 0.18);
  border-color: #38bdf8;
  color: #f0f9ff;
}

.pointcloud-mode-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.pointcloud-status {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: rgba(15, 23, 42, 0.72);
  color: #e2e8f0;
  font-size: 15px;
  z-index: 5;
  pointer-events: none;
}

.pointcloud-status.hidden {
  display: none;
}

.pointcloud-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(148, 163, 184, 0.25);
  border-top-color: #38bdf8;
  border-radius: 50%;
  animation: pc-spin 0.8s linear infinite;
}

@keyframes pc-spin {
  to { transform: rotate(360deg); }
}

.pointcloud-hint {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.72);
  color: #94a3b8;
  font-size: 12px;
  z-index: 4;
  pointer-events: none;
}

.pointcloud-meta {
  padding: 10px 16px 14px;
  color: #94a3b8;
  font-size: 13px;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.pointcloud-legend {
  margin-top: 16px;
}

.pointcloud-legend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px 12px;
  margin-top: 12px;
}

.pointcloud-legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #475569;
}

.pointcloud-legend-swatch {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  flex-shrink: 0;
  border: 1px solid rgba(15, 23, 42, 0.12);
}

.pointcloud-scene-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.pointcloud-scene-thumb {
  border-radius: 12px;
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  background: #f1f5f9;
  transition: border-color 0.15s, transform 0.15s;
}

.pointcloud-scene-thumb:hover {
  transform: translateY(-2px);
  border-color: #38bdf8;
}

.pointcloud-scene-thumb.active {
  border-color: #0ea5e9;
  box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.25);
}

.pointcloud-scene-thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.pointcloud-scene-thumb span {
  display: block;
  padding: 8px 10px;
  font-size: 13px;
  color: #334155;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}