.diagram-area {
  width: 100%;
  height: 600px;
  position: relative;
  background-color: #f8f9fa;
  background-image: url("../images/car_top_view.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}


.node {
  position: absolute;
  width: 100px;
  height: 40px;
  background-color: #e0e0ff;
  border: 2px solid #333;
  text-align: center;
  line-height: 40px;
  cursor: move;
  font-weight: bold;
  border-radius: 5px;
}
.node.selected {
  border-color: red;
}


.connection-line {
  position: absolute;
  height: 2px;
  background-color: #d00;
  transform-origin: 0 0;
  z-index: 0;
}


.custom-modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
}
.custom-modal-content {
  background-color: #fff;
  margin: 10% auto;
  padding: 20px;
  width: 500px;
  border-radius: 4px;
}
.custom-modal-header,
.custom-modal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.custom-modal-close {
  cursor: pointer;
  font-size: 20px;
  color: #666;
}
.custom-modal-close:hover {
  color: #000;
}



.custom-modal-body {
  max-height: 70vh;    
  overflow-y: auto;   
}
.custom-modal-content {
  display: flex;
  flex-direction: column;
  max-height: 80vh; 
}


.custom-modal-header,
.custom-modal-footer {
  flex-shrink: 0;  
}


.custom-modal-body {
  flex: 1;          
  overflow-y: auto;  
}
.loader-overlay {
  position: relative;
}

.loader-content {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.8);
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.5s ease;
}

.loader-content.hidden {
  opacity: 0;
  pointer-events: none;
}

#chartContainer img {
  width: 1000px !important;   
  height: auto !important;   
}


#chartContainer .col-md-4 {
  flex: 0 0 100% !important;
  max-width: 180% !important;
}