.book-page-scrubber {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  min-width: 0;
  font-family: var(--book-font-labels, inherit);
}

.book-page-slider {
  --slider-ink: var(--book-ink, var(--ink, #2c2a26));
  --slider-accent: var(--book-accent, var(--accent, #a34d28));
  --slider-track: var(--book-paper-edge, #e8dfcf);
  box-sizing: border-box;
  display: block;
  width: clamp(5.25rem, 11vw, 8rem);
  height: 44px;
  margin: 0;
  padding: 0;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  border-radius: 0;
  outline: none;
  background: transparent;
  color: var(--slider-ink);
  font: inherit;
  cursor: grab;
  pointer-events: auto;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
}

.book-page-slider:active { cursor: grabbing; }
.book-admin .book-page-slider { width: 100%; max-width: 32rem; }
.book-range-grab {
  display: flex;
  width: clamp(5.25rem, 11vw, 8rem);
  touch-action: none;
  cursor: grab;
}
.book-range-grab:active { cursor: grabbing; }
.book-range-grab > .book-page-slider { width: 100%; }
.book-admin .book-range-grab { width: 100%; max-width: 32rem; }

.book-page-slider:focus-visible {
  outline: 2px solid var(--slider-accent);
  outline-offset: 2px;
  border-radius: 5px;
}

.book-page-slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 2px;
  border: 0;
  border-radius: 2px;
  background: var(--slider-track);
}

.book-page-slider::-webkit-slider-thumb {
  box-sizing: border-box;
  width: 28px;
  height: 28px;
  margin-top: -13px;
  appearance: none;
  -webkit-appearance: none;
  border: 2px solid var(--slider-accent);
  border-radius: 50%;
  background: var(--book-paper, #fffdf8);
  box-shadow: 0 1px 3px rgba(69, 52, 29, .16);
}

.book-page-slider::-moz-range-track {
  width: 100%;
  height: 2px;
  border: 0;
  border-radius: 2px;
  background: var(--slider-track);
}

.book-page-slider::-moz-range-progress {
  height: 2px;
  border: 0;
  border-radius: 2px;
  background: var(--slider-accent);
}

.book-page-slider::-moz-range-thumb {
  box-sizing: border-box;
  width: 28px;
  height: 28px;
  border: 2px solid var(--slider-accent);
  border-radius: 50%;
  background: var(--book-paper, #fffdf8);
  box-shadow: 0 1px 3px rgba(69, 52, 29, .16);
}

.book-page-slider:hover::-webkit-slider-thumb { background: #f7f0e5; }
.book-page-slider:hover::-moz-range-thumb { background: #f7f0e5; }

@media (max-width: 560px) {
  .book-masthead { flex-wrap: wrap; }
  .book-masthead-actions { flex: 1 1 100%; flex-direction: row; align-items: center; }
  .book-page-scrubber { gap: .4rem; flex: 1; }
  .book-progress-label { white-space: nowrap; }
  .book-page-slider { width: auto; flex: 1; min-width: 4rem; }
  .book-range-grab { width: auto; flex: 1; min-width: 4rem; }
}

@media (prefers-reduced-motion: no-preference) {
  .book-page-slider::-webkit-slider-thumb,
  .book-page-slider::-moz-range-thumb {
    transition: background-color .16s ease;
  }
}