.pf-ln-marker {
  --pf-dur: 600ms;
  --pf-step: 110ms;
  --pf-delay: 600ms;
  --pf-bar: #1fae7a;
  --pf-ink: #1a1a2e;
  --pf-ease: cubic-bezier(0.65, 0, 0.35, 1);
}
.pf-ln-marker .pf-ln {
  display: block;
  position: relative;
  color: transparent;
}
.pf-ln-marker .pf-ln::after {
  content: "";
  position: absolute;
  left: -0.15em; right: -0.15em; top: 0.15em; bottom: 0.15em;
  z-index: 1;
  background: var(--pf-bar);
  border-radius: 3px;
  transform: scaleX(0);
  pointer-events: none;
}
.pf-ln-marker.is-on .pf-ln {
  animation: pf-ln-text 1ms linear calc(var(--c, 0) * var(--pf-step) + var(--pf-delay) + var(--pf-dur) * 0.5) both;
}
.pf-ln-marker.is-on .pf-ln::after {
  animation: pf-ln-marker var(--pf-dur) var(--pf-ease) calc(var(--c, 0) * var(--pf-step) + var(--pf-delay)) both;
}
@keyframes pf-ln-text { to { color: var(--pf-ink); } }
@keyframes pf-ln-marker {
  0%   { transform: scaleX(0); transform-origin: 0 50%; }
  48%  { transform: scaleX(1); transform-origin: 0 50%; }
  52%  { transform: scaleX(1); transform-origin: 100% 50%; }
  100% { transform: scaleX(0); transform-origin: 100% 50%; }
}
@media (prefers-reduced-motion: reduce) {
  .pf-ln-marker .pf-ln, .pf-ln-marker.is-on .pf-ln { color: var(--pf-ink); animation: none; }
  .pf-ln-marker .pf-ln::after, .pf-ln-marker.is-on .pf-ln::after { display: none; animation: none; }
}