/* =========================================================
   XIRO CUSTOM SCROLL SLIDER
   Separate reusable right-side page slider.
   Inspired by the thin vertical rail in the supplied reference.
   ========================================================= */

/* Hide the browser's default visual scrollbar; native scrolling remains. */
html {
  scrollbar-width: none;
}

body::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.xiro-scroll-slider {
  --xiro-scroll-height: clamp(150px, 19vh, 205px);
  --xiro-scroll-right: clamp(6px, .8vw, 14px);
  --xiro-scroll-track: rgba(10, 10, 10, .11);
  --xiro-scroll-thumb: rgba(10, 10, 10, .72);

  position: fixed;
  top: 50%;
  right: var(--xiro-scroll-right);
  width: 16px;
  height: var(--xiro-scroll-height);
  transform: translateY(-50%);
  z-index: 8000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .22s ease, visibility 0s linear .22s;
}

.xiro-scroll-slider.is-active {
  opacity: 1;
  visibility: visible;
  transition: opacity .22s ease, visibility 0s linear 0s;
}

.xiro-scroll-slider.is-hidden {
  opacity: 0 !important;
  visibility: hidden !important;
}

.xiro-scroll-slider-track {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: var(--xiro-scroll-track);
  pointer-events: auto;
  cursor: pointer;
}

.xiro-scroll-slider-thumb {
  position: absolute;
  left: 50%;
  top: 0;
  width: 4px;
  min-height: 30px;
  border-radius: 999px;
  background: var(--xiro-scroll-thumb);
  transform: translate(-50%, 0);
  transform-origin: center top;
  will-change: transform, height;
  cursor: grab;
  touch-action: none;
}

.xiro-scroll-slider-thumb::before {
  content: "";
  position: absolute;
  inset: -8px -7px;
}

.xiro-scroll-slider-thumb:active {
  cursor: grabbing;
}

/* Optional light version for a dark page section if needed later. */
body[data-scroll-slider-theme="light"] .xiro-scroll-slider {
  --xiro-scroll-track: rgba(255, 255, 255, .2);
  --xiro-scroll-thumb: rgba(255, 255, 255, .82);
}

/* Never show above XIRO's entry or page-to-page animation. */
html.xiro-entry-active .xiro-scroll-slider,
body.xiro-transition-locked .xiro-scroll-slider {
  opacity: 0;
}

body.xiro-scroll-dragging {
  user-select: none;
}

@media (max-width: 700px) {
  .xiro-scroll-slider {
    --xiro-scroll-height: clamp(112px, 18vh, 150px);
    --xiro-scroll-right: 4px;
    width: 12px;
  }

  .xiro-scroll-slider-track,
  .xiro-scroll-slider-thumb {
    width: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .xiro-scroll-slider {
    transition: none;
  }
}