.linesSVG{
  position:absolute;
  left:0; top:0; width:0; height:0;
  pointer-events:none;
  /* remove any inset so JS can size/position exactly */
}
/* optional softer line look */
.linesSVG path{
  stroke: rgba(255, 75, 88, 0.55); /* slightly toned down */
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 4px rgba(255,80,100,.28));
}