.spider-scroll {
  position: fixed;
  z-index: 9998;
  top: 0;
  right: max(0px, env(safe-area-inset-right));
  bottom: 0;
  width: 64px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate3d(10px, 0, 0) scale(0.97);
  transform-origin: right center;
  transition: opacity 150ms ease-out, transform 210ms cubic-bezier(0.2, 0.8, 0.2, 1), visibility 0s linear 220ms;
}

html,
body {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

.spider-scroll.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate3d(0, 0, 0) scale(1);
  transition: opacity 90ms ease-out, transform 180ms cubic-bezier(0.2, 0.8, 0.2, 1), visibility 0s;
}

.spider-scroll svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  clip-path: none;
  filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.74));
}

.spider-scroll path {
  fill: none;
  vector-effect: non-scaling-stroke;
}

.spider-scroll__shadow {
  stroke: rgba(0, 0, 0, 0.84);
  stroke-width: 6px;
  stroke-linecap: round;
}

.spider-scroll__vine {
  stroke: rgba(31, 74, 52, 0.84);
  stroke-width: 4px;
  stroke-linecap: round;
}

.spider-scroll__progress {
  stroke: url("#spider-scroll-fibre");
  stroke-width: 3.2px;
  stroke-linecap: round;
}

.spider-scroll__thumb {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 58px;
  height: 68px;
  border: 0;
  background: transparent;
  cursor: grab;
  pointer-events: auto;
  touch-action: none;
  transform-origin: 50% 54%;
  will-change: transform;
  filter: drop-shadow(0 7px 7px rgba(0, 0, 0, 0.74));
}

.spider-scroll__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.spider-scroll.is-visible .spider-scroll__thumb img {
  animation: spider-scroll-idle 2.6s ease-in-out infinite;
}

.spider-scroll__thumb:hover {
  filter: brightness(1.1) drop-shadow(0 8px 8px rgba(0, 0, 0, 0.78));
}

.spider-scroll__thumb.is-dragging {
  cursor: grabbing;
  filter: brightness(1.18) drop-shadow(0 10px 10px rgba(0, 0, 0, 0.82));
}

.spider-scroll__thumb:focus-visible {
  outline: 2px solid #e5c54d;
  outline-offset: 3px;
}

@keyframes spider-scroll-idle {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-2px) scale(1.025, 0.985); }
}

@media (max-width: 720px) {
  .spider-scroll {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .spider-scroll {
    transform: none;
    transition: opacity 120ms linear, visibility 0s linear 120ms;
  }

  .spider-scroll.is-visible {
    transition: opacity 80ms linear, visibility 0s;
  }

  .spider-scroll__thumb {
    will-change: auto;
  }

  .spider-scroll.is-visible .spider-scroll__thumb img {
    animation: none;
  }
}

@media (prefers-contrast: more) {
  .spider-scroll__vine,
  .spider-scroll__progress {
    stroke-width: 4.5px;
  }
}