html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

#map {
  width: 100%;
  height: 100%;
}

#controlPanel {
  position: absolute;
  top: 40px;
  left: 10px;
  z-index: 100;
  background: white;
  padding: 10px;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  font-family: sans-serif;
  font-size: 14px;
}

#controlPanel #regionSelect {
  width: 160px;
  padding: 4px;
}

#controlPanel #addRegionBtn {
  padding: 4px 6px;
  margin-left: 4px;
}

#controlPanel input[type="number"],
#controlPanel input[type="text"] {
  padding: 4px;
  width: 120px;
}

.inputGroup {
  display: flex;
  align-items: center;
  margin-bottom: 6px;
}

.inputGroup label {
  width: 70px;
  margin-right: 4px;
}

.buttonGroup {
  display: flex;
  gap: 4px;
  margin-bottom: 6px;
}

.buttonGroup button {
  flex: 1;
  padding: 5px;
}

#saveCirclesBtn {
  width: 100%;
  padding: 5px;
  margin-top: 4px;
}

#togglePanelBtn {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 110;
  background: white;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 2px 6px;
  cursor: pointer;
}