.zx-reading-progress {
  --zx-rp-height: 4px;
  --zx-rp-color: var(--zx-color-primary, #2563eb);
  --zx-rp-track: transparent;
  --zx-rp-radius: 0px;
  --zx-rp-progress: 0;
  position: fixed;
  inset-inline: 0;
  z-index: 100000;
  height: var(--zx-rp-height);
  pointer-events: none;
}
.zx-reading-progress--top {
  top: var(--wp-admin--admin-bar--height, 0px);
}
.zx-reading-progress--bottom {
  bottom: 0;
}
.zx-reading-progress__bar {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--zx-rp-track);
  border-radius: var(--zx-rp-radius);
}
.zx-reading-progress__fill {
  position: absolute;
  inset: 0;
  background-color: var(--zx-rp-color);
  border-radius: var(--zx-rp-radius);
  transform: scaleX(var(--zx-rp-progress));
  transform-origin: left center;
  will-change: transform;
}
[dir='rtl'] .zx-reading-progress__fill {
  transform-origin: right center;
}
.zx-reading-progress__percent {
  position: absolute;
  inset-inline-end: 8px;
  top: calc(100% + 4px);
  padding: 1px 6px;
  border-radius: 4px;
  background-color: var(--zx-rp-color);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  font-variant-numeric: tabular-nums;
}
.zx-reading-progress--bottom .zx-reading-progress__percent {
  top: auto;
  bottom: calc(100% + 4px);
}

/* Editor canvas: shown in place (not fixed) so it can be selected and styled. */
.zx-reading-progress--editor {
  position: relative;
  inset: auto;
  z-index: auto;
  margin-block: 8px 24px;
  pointer-events: auto;
}
.zx-reading-progress--editor .zx-reading-progress__bar {
  background-color: var(--zx-rp-track, transparent);
  outline: 1px dashed rgba(0, 0, 0, 0.15);
}