body {
margin:0;
font-family:Arial;
}

#map {
position:absolute;
top:0;
bottom:0;
width:100%;
}

#controls {

position:absolute;
top:10px;
left:10px;

background:white;
padding:12px;
border-radius:6px;

box-shadow:0 0 6px rgba(0,0,0,0.3);

z-index:1;

}

#legend {
  position: absolute;
  bottom: 30px;
  left: 10px;
  background: rgba(255,255,255,0.95);
  padding: 12px;
  font-family: Arial, sans-serif;
  font-size: 12px;
  border-radius: 6px;
  box-shadow: 0 0 5px rgba(0,0,0,0.3);
  max-width: 220px;
}

.legend-section {
  margin-bottom: 10px;
}

.legend-item {
  display: flex;
  align-items: center;
  margin: 4px 0;
}

.legend-circle {
  display: inline-block;
  border-radius: 50%;
  margin-right: 8px;
  border: 1px solid #555;
}

.alert-box {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: 8px;
  border: 1px solid #555;
}

.low { background:#ffffb2; }
.mid { background:#fecc5c; }
.high { background:#fd8d3c; }
.extreme { background:#e31a1c; }