#zonemap-container {
  display: flex;
  height: calc(100vh - 140px);
}
#editor-canvas-area {
  flex: 3;
  position: relative;
  background: white;
  overflow: hidden;
}
#scroll-wrapper {
  width: 100%;
  height: 100%;
  overflow: auto;
  position: relative;
}
#canvas-wrapper {
  position: relative;
  display: inline-block;
}
#zonemap-canvas, #heatmap-canvas {
  position: absolute;
  top: 0;
  left: 0;
  image-rendering: pixelated;
}
#heatmap-canvas {
  z-index: 2;
  pointer-events: none;
  opacity: 0.65;
}
#editor-toolbar {
  flex: 1;
  background: #eaeaea;
  padding: 1rem;
}
.modal {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 99;
  display: none;
  align-items: center;
  justify-content: center;
}
.modal-content {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  max-height: 80vh;
  overflow-y: auto;
}
.obstacle-item {
  margin-bottom: 0.5rem;
}