body {
  margin: 0;
  overflow: hidden;
}
canvas {
  display: block;
}
html, body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  height: 100%;
}
#canvasWrapper {
  width: 100vw;
  height: 100vh;
  background-color: #f0f0f0; /* default background */
  display: flex;
  justify-content: center;
  align-items: center;
}
#loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255, 255, 255, 0.85);
  padding: 20px 30px;
  border-radius: 10px;
  font-size: 18px;
  font-family: sans-serif;
  z-index: 1000;
  display: none;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}
#controls {
  position: fixed;
  top: 20px;
  right: 20px;
  border: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(255, 255, 255, 0.8);
  padding: 10px;
  border-radius: 8px;
  font-family: sans-serif;
  font-size: 14px;
}
#mapSelector {
  border: none;
  padding: 0;
  padding-top: 5px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
#mapSelectorTitle {
  font-weight: bold;
  padding-top: 5px;
}