.portfolio-scroll-nav {
  --portfolio-scroll-track-height: clamp(320px, 56vh, 510px);
  position: fixed;
  z-index: 1000;
  top: 50%;
  right: 0;
  width: 32px;
  height: var(--portfolio-scroll-track-height);
  overflow: visible;
  transform: translateY(-50%);
  transition: width 240ms ease;
}

@media (min-width: 768px) {
  html {
    scrollbar-width: none;
  }

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

.portfolio-scroll-nav__rail {
  position: absolute;
  top: 0;
  right: 5px;
  width: 24px;
  height: 100%;
  cursor: pointer;
  touch-action: none;
}

.portfolio-scroll-nav__rail::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: rgba(247, 246, 242, 0.34);
  pointer-events: none;
  transform: translateX(-50%);
}

.portfolio-scroll-nav__thumb {
  position: absolute;
  z-index: 2;
  top: 0;
  left: calc(50% - 2.5px);
  width: 5px;
  height: 34px;
  border-radius: 999px;
  background: #050505;
  outline: 1px solid rgba(247, 246, 242, 0.14);
  cursor: grab;
  will-change: transform;
}

.portfolio-scroll-nav__thumb::after {
  content: "";
  position: absolute;
  inset: -9px -8px;
}

.portfolio-scroll-nav.is-dragging .portfolio-scroll-nav__thumb {
  cursor: grabbing;
}

.portfolio-scroll-nav__thumb:focus-visible {
  outline: 1px solid var(--white);
  outline-offset: 4px;
}

.portfolio-scroll-nav__marker {
  position: absolute;
  right: 8px;
  width: 160px;
  min-height: 32px;
  padding-right: 36px;
  color: rgba(247, 246, 242, 0.92);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 520;
  line-height: 1;
  letter-spacing: 0.08em;
  text-align: right;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%) translateX(5px);
  transition:
    opacity 240ms ease,
    color 240ms ease,
    transform 240ms ease;
}

.portfolio-scroll-nav__marker-label {
  display: block;
  padding: 10px 0;
}

.portfolio-scroll-nav__connector {
  position: absolute;
  top: 50%;
  right: 4px;
  width: 24px;
  height: 1px;
  background: rgba(247, 246, 242, 0.56);
  transform: translateY(-50%);
}

.portfolio-scroll-nav__point {
  position: absolute;
  top: 50%;
  right: 0;
  width: 8px;
  height: 8px;
  border: 1px solid rgba(247, 246, 242, 0.88);
  border-radius: 50%;
  background: var(--ink);
  opacity: 0;
  transform: translateY(-50%);
}

.portfolio-scroll-nav__marker--edge .portfolio-scroll-nav__point {
  opacity: 1;
}

.portfolio-scroll-nav:hover,
.portfolio-scroll-nav:focus-within {
  width: 176px;
}

.portfolio-scroll-nav:hover .portfolio-scroll-nav__marker,
.portfolio-scroll-nav:focus-within .portfolio-scroll-nav__marker {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(-50%) translateX(0);
}

.portfolio-scroll-nav__marker:hover,
.portfolio-scroll-nav__marker:focus-visible {
  color: #ffffff;
}

.portfolio-scroll-nav__marker:focus-visible {
  border-radius: 2px;
  outline: 1px solid currentColor;
  outline-offset: 2px;
}

@media (max-width: 767px) {
  .portfolio-scroll-nav {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .portfolio-scroll-nav,
  .portfolio-scroll-nav__marker {
    transition: none;
  }
}