/* ─── 3D Viewer Mode ─────────────────────────────────────────── */

.viewer3d-container {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 6;
  background: #0a0e12;
}

body.mode-3d .viewer3d-container {
  display: block;
}

body.mode-3d .map-box {
  display: none !important;
}

/* Phase 4b: .leaflet-map gone. The Cesium map container is hidden in 3D mode below. */
body.mode-3d .cesium-map {
  display: none !important;
}

body.mode-3d #view3dBtn {
  background: var(--accent, #3b82f6);
  color: #fff;
  border-color: var(--accent, #3b82f6);
}

.viewer3d-container canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* ─── 3D Floating Toolbar ────────────────────────────────────── */

.viewer3d-toolbar {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  background: rgba(15, 18, 22, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  z-index: 10;
}

.viewer3d-toolbar .btn-small {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 4px;
  background: transparent;
  border: 1px solid transparent;
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.viewer3d-toolbar .btn-small:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.viewer3d-toolbar .btn-small.active {
  color: #fff;
  background: var(--accent, #3b82f6);
  border-color: var(--accent, #3b82f6);
}

.viewer3d-toolbar .toolbar-divider {
  width: 1px;
  height: 18px;
  background: rgba(255, 255, 255, 0.12);
  margin: 0 4px;
}

/* ─── Phase Panel ────────────────────────────────────────────── */

.viewer3d-phase-panel {
  display: none;
  position: absolute;
  top: 10px;
  right: 10px;
  width: 220px;
  background: rgba(15, 18, 22, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 12px;
  z-index: 10;
  max-height: 320px;
  overflow-y: auto;
  color: #e5e5e5;
}

.viewer3d-phase-panel.visible {
  display: block;
}

.viewer3d-phase-panel h4 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.phase-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-size: 12px;
}

.phase-item input[type="checkbox"] {
  accent-color: var(--accent, #3b82f6);
}

.phase-color {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

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

.phase-delete {
  opacity: 0;
  cursor: pointer;
  color: #ef4444;
  font-size: 14px;
  transition: opacity 0.15s;
}

.phase-item:hover .phase-delete {
  opacity: 0.7;
}

.phase-delete:hover {
  opacity: 1 !important;
}

.viewer3d-phase-panel .btn-small {
  width: 100%;
  margin-top: 6px;
  padding: 5px 8px;
  font-size: 11px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  color: rgba(255, 255, 255, 0.6);
  cursor: pointer;
  transition: all 0.15s;
}

.viewer3d-phase-panel .btn-small:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* ─── Responsive ─────────────────────────────────────────────── */

@media (max-width: 768px) {
  .viewer3d-toolbar {
    bottom: 8px;
    padding: 4px 6px;
    gap: 2px;
  }
  .viewer3d-toolbar .btn-small {
    padding: 3px 6px;
    font-size: 10px;
  }
  .viewer3d-phase-panel {
    width: 180px;
    top: 8px;
    right: 8px;
  }
}