body {
  margin: 0;
  font-family: Arial, sans-serif;
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: #1B2636;
  color: #FFFFFF;
}

.top-bar {
  display: flex;
  align-items: center;
  background: #1B2636;
  color: #FFFFFF;
  padding: 0 1rem;
  height: 50px;
}

#hamburger {
  font-size: 24px;
  margin-right: 1rem;
  cursor: pointer;
}

.top-bar h1 {
  flex: 1;
  font-size: 18px;
  margin: 0;
}

#aboutBtn {
  background: #1976D2;
  color: #fff;
  border: none;
  padding: 0.4rem 1rem;
  cursor: pointer;
}

#main {
  flex: 1;
  display: flex;
  overflow: hidden;
}

#sidePanel {
  width: 250px;
  background: #1B2636;
  padding: 10px;
  box-sizing: border-box;
  overflow-y: auto;
  transition: transform 0.3s;
  position: relative;
}

#sidePanel.closed {
  transform: translateX(-250px);
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
}

#map {
  flex: 1;
  position: relative;
}

#north-arrow {
  position: absolute;
  right: 20px;
  bottom: 20px;
  z-index: 1000;
  background: rgba(27, 38, 54, 0.7);
  border-radius: 8px;
  padding: 4px 8px 2px 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

details {
  margin-bottom: 10px;
}

details summary {
  cursor: pointer;
  list-style: none;
  font-weight: bold;
}

#loadData li {
  cursor: pointer;
  color: #B0BEC5;
  margin: 4px 0;
}

#bufferControl input[type=range],
#distalControl input[type=range] {
  width: 100%;
}

#proximalValue,
#distalValue {
  margin-left: 8px;
}

/* marker cluster colors */
.marker-cluster-small {
  background-color: #8BC34A;
}
.marker-cluster-medium {
  background-color: #FFEB3B;
}
.marker-cluster-large {
  background-color: #FF9800;
}
.marker-cluster-xlarge {
  background-color: #F44336;
}
.marker-cluster div {
  background-color: inherit;
  border-radius: 50%;
  border: 1px solid #fff;
  color: #000;
}

/* Layer control styling */
.leaflet-control-layers {
  background: rgba(255, 255, 255, 0.95) !important;
  border-radius: 8px !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3) !important;
  padding: 8px !important;
  min-width: 150px;
  margin-bottom: 20px !important;
  margin-left: 20px !important;
}

.leaflet-control-layers-expanded {
  background: rgba(255, 255, 255, 0.98) !important;
}

.leaflet-control-layers label {
  font-size: 14px !important;
  color: #333 !important;
  font-weight: 500 !important;
  margin-bottom: 4px !important;
  display: flex !important;
  align-items: center !important;
}

.leaflet-control-layers input[type="radio"] {
  margin-right: 8px !important;
  transform: scale(1.1) !important;
}

.leaflet-control-layers-toggle {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23333"><path d="M12 2l3.09 6.26L22 9.27l-5 4.87 1.18 6.88L12 17.77l-6.18 3.25L7 14.14 2 9.27l6.91-1.01L12 2z"/></svg>') !important;
  background-size: 16px 16px !important;
  width: 36px !important;
  height: 36px !important;
}

#search-container {
  display: flex;
  margin-top: 5px;
  margin-bottom: 10px;
}

#search-input {
  flex-grow: 1;
  border: 1px solid #555;
  background: #333;
  color: #fff;
  padding: 8px;
  border-radius: 4px 0 0 4px;
  font-size: 14px;
}

#search-input::placeholder {
  color: #888;
}

#search-btn {
  background: #1976D2;
  color: #fff;
  border: none;
  padding: 0 12px;
  cursor: pointer;
  border-radius: 0 4px 4px 0;
  font-size: 14px;
  transition: background-color 0.2s;
}

#search-btn:hover {
  background: #1565C0;
}