.sensor {
	fill: #3b99dc;
	stroke: #0742c0;
	filter: drop-shadow(1px 1px 2px rgba(0, 0, 0, 0.3));
}

.zone {
	fill: rgba(173, 216, 230, 0.3);
	stroke: #333;
	stroke-width: 2px;
}

.sensor-label {
	fill: #111;
	font-family: Arial, sans-serif;
	font-weight: 700;
	text-anchor: middle;
	dominant-baseline: middle;
	paint-order: stroke;
	stroke: #fff;
	pointer-events: none;
}