/* A narrow scroll instrument: the mark stays quiet, the chapter appears on use. */
.page-ruler.experience-ruler {
  position: fixed;
  top: 128px;
  bottom: 28px;
  right: 2px;
  width: 24px;
  z-index: 46;
  display: block;
  padding: 0;
  background: none;
  pointer-events: auto;
  touch-action: none;
  user-select: none;
  cursor: ns-resize;
  outline: none;
}
.experience-ruler .rail-track {
  position: absolute;
  inset: 8px 0;
  pointer-events: none;
}
.experience-ruler .rail-ticks {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}
.experience-ruler .rail-tick {
  display: block;
  flex: 0 0 1px;
  height: 1px;
  width: 5px;
  background: #aeb8b1;
  opacity: .7;
}
.experience-ruler .rail-tick.is-major { width: 10px; opacity: .9; }
.experience-ruler .rail-thumb {
  position: absolute;
  top: calc(var(--rail-progress, 0) * 100%);
  left: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2287d9;
  box-shadow: 0 0 0 3px var(--paper, #f4f5f3);
  transform: translateY(-50%);
}
.experience-ruler .rail-tag {
  position: absolute;
  right: 31px;
  top: calc(8px + var(--rail-progress, 0) * (100% - 16px));
  transform: translate(5px, -50%);
  display: block;
  padding: 5px 8px;
  max-width: min(230px, 65vw);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font: 400 11px/1.2 'DM Sans', sans-serif;
  letter-spacing: .01em;
  color: #303332;
  background: #f4f5f3f5;
  border: 1px solid #c9cfca;
  border-radius: 3px;
  box-shadow: none;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .22s ease;
}
.experience-ruler.is-travelling .rail-tag,
.experience-ruler:hover .rail-tag,
.experience-ruler:focus-visible .rail-tag,
.experience-ruler.is-dragging .rail-tag { opacity: 1; transform: translate(0, -50%); }
.experience-ruler:focus-visible .rail-track {
  outline: 2px solid #2287d9;
  outline-offset: 2px;
  border-radius: 3px;
}
.experience-ruler.is-dragging .rail-thumb { box-shadow: 0 0 0 5px #2287d921; }
.rail-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.intro-running .page-ruler.experience-ruler { visibility: hidden; opacity: 0; pointer-events: none; }

/* The native cursor returns for fields, keyboard use and reduced motion. */
.qualityms-pointer {
  position: fixed;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  z-index: 2147483647;
  opacity: 0;
  pointer-events: none;
  contain: layout style;
}
.qualityms-pointer:before,
.qualityms-pointer:after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.qualityms-pointer:before {
  left: -9px;
  top: -9px;
  width: 18px;
  height: 18px;
  border: 1px solid #2287d9;
  background: #2287d905;
  transition: transform .16s ease, background .16s ease;
}
.qualityms-pointer:after { left: -1px; top: -1px; width: 2px; height: 2px; background: #2287d9; }
.qualityms-pointer.is-visible { opacity: 1; }
.qualityms-pointer.is-interactive:before { transform: scale(1.55); background: #2287d912; }
.qualityms-pointer.is-pressed:before { transform: scale(.72); background: #2287d929; }
@media (pointer: fine) and (hover: hover) {
  .experience-cursor-active body,
  .experience-cursor-active body a,
  .experience-cursor-active body button,
  .experience-cursor-active body summary,
  .experience-cursor-active body [data-sound],
  .experience-cursor-active body .experience-ruler { cursor: none !important; }
  .experience-cursor-active body input,
  .experience-cursor-active body textarea,
  .experience-cursor-active body [contenteditable]:not([contenteditable="false"]) { cursor: text !important; }
  .experience-cursor-active body select { cursor: auto !important; }
}
@media (max-width: 760px) {
  .page-ruler.experience-ruler {
    top: auto;
    bottom: max(14px, env(safe-area-inset-bottom));
    right: 14px;
    width: auto;
    height: auto;
    pointer-events: none;
    touch-action: auto;
  }
  .experience-ruler .rail-track { display: none; }
  .experience-ruler .rail-tag {
    position: static;
    font-size: 10px;
    padding: 7px 10px;
    max-width: min(280px, calc(100vw - 28px));
    transform: none;
    background: #f4f5f3f5;
  }
  .experience-ruler:hover .rail-tag,
  .experience-ruler:focus-visible .rail-tag,
  .experience-ruler.is-dragging .rail-tag { opacity: 0; transform: none; }
  .experience-ruler.is-travelling .rail-tag { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .experience-ruler .rail-tag { transition: none; }
  .qualityms-pointer { display: none !important; }
  .experience-cursor-active body,
  .experience-cursor-active body a,
  .experience-cursor-active body button,
  .experience-cursor-active body summary,
  .experience-cursor-active body [data-sound],
  .experience-cursor-active body .experience-ruler { cursor: auto !important; }
}
@media print { .page-ruler.experience-ruler, .qualityms-pointer { display: none !important; } }