#langSwitch {
  position: fixed;
  left: 12px;
  bottom: 34px;
  z-index: 500;
  font-family: Arial, sans-serif;
  user-select: none;
}
#langSwitch #langBtn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(40,40,40,0.85);
  color: #eee;
  border: 1px solid #666;
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 12px;
  cursor: pointer;
  backdrop-filter: blur(4px);
}
#langSwitch #langBtn:hover {
  background: rgba(80,80,80,0.9);
  border-color: #aaa;
}
#langSwitch #langMenu {
  display: none;
  position: absolute;
  left: 0;
  bottom: 34px;
  background: rgba(20,20,20,0.95);
  border: 1px solid #555;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.7);
}
#langSwitch.open #langMenu {
  display: block;
}
#langSwitch #langMenu button {
  display: block;
  width: 120px;
  text-align: left;
  background: transparent;
  color: #ddd;
  border: none;
  padding: 7px 12px;
  font-size: 12px;
  cursor: pointer;
}
#langSwitch #langMenu button:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
}