.hiperbola-widget{
  font-family: Arial, sans-serif;
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  border: 1px solid #ddd;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0,0,0,.1);
}
.hiperbola-widget h2{
  margin-top: 0;
  text-align: center;
  color: #1a4de1;
}
.controls{
  display: flex;
  align-items: center;
  margin-top: 12px;
  gap: .5em;
  font-size: 14px;
}
.controls input[type="range"]{ flex:1; }

.hiperbola-widget svg text.label{
  font: 16px Arial, sans-serif;
}
.draggable{
  cursor: pointer;
  stroke:#000;
  stroke-width:1;
}