body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0b1a24;
  color: #eee;
}

#controls {
  padding: 8px;
  background: #122b3a;
  display: flex;
  gap: 12px;
  align-items: center;
}

#info {
  padding: 8px;
  background: #0f2230;
  font-size: 14px;
}

#imageContainer {
  overflow: auto;
}

canvas {
  display: block;
  cursor: crosshair;
}
#thumbnail-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 10px;
  background: #111;
  border-bottom: 1px solid #333;

  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.thumbnail {
  height: 90px;
  width: auto;
  flex-shrink: 0;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 4px;
}

.thumbnail.selected {
  border-color: #00aaff;
}