/* ── Reading Progress Indicator ── */

/* Desktop: vertical track along left edge of sidebar */
.reading-progress-track {
  position: absolute;
  left: calc(-1 * var(--space-4));
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--hairline);
  border-radius: 0;
  pointer-events: none;
}

.reading-progress-track__fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--category-color, var(--heading));
  border-radius: 0;
  transform-origin: top;
  transform: scaleY(0);
  transition: transform 80ms linear;
}

.reading-progress-track__dot {
  position: absolute;
  left: -2px;
  top: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--category-color, var(--heading));
  transform: translateY(0);
  transition: transform 80ms linear;
  pointer-events: none;
}

/* Mobile: SVG ring overlay on FAB */
.reading-progress-ring {
  display: none;
}

@media (max-width: 767px) {
  .reading-progress-ring {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    transform: rotate(-90deg);
  }

  .reading-progress-ring circle {
    fill: none;
    stroke: var(--category-color, var(--meta));
    stroke-width: 2;
    stroke-linecap: round;
    transition: stroke-dashoffset 80ms linear;
  }

}

/* Hide desktop track on mobile/tablet */
@media (max-width: 1023px) {
  .reading-progress-track {
    display: none;
  }
}