html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  overflow: hidden;
  font-family: Arial, sans-serif;
}

#main-container {
  width: 100%;
  height: 100%;
  position: relative;
}

.label {
  position: absolute;
  color: white;
  background-color: rgba(0,0,0,0.6);
  padding: 4px 6px;
  border-radius: 4px;
  pointer-events: none;
  z-index: 900;
  transform: translate(-50%, 10px);
  font-size: 14px;
  white-space: nowrap;
}

.info-popup {
  position: absolute;
  background: rgba(0,0,0,0.6);
  color: white;
  padding: 16px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.6);
  display: none;
  pointer-events: none;
  font-size: 14px;
  z-index: 2000;
  max-width: 300px;
  line-height: 1.4;
}