.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary-400);
  transform-origin: left;
  transform: scaleX(0);
  z-index: 60;
  pointer-events: none;
}

@media print {
  .reading-progress { display: none; }
}