Scroll-Snap Thumbnail Strip

<div class="nuda-gc2-snap-thumbs" role="group" aria-roledescription="carousel" aria-label="Photo carousel with thumbnails">
  <div class="nuda-gc2-snap-thumbs__viewport">
    <div class="nuda-gc2-snap-thumbs__slide" role="group" aria-roledescription="slide" aria-label="1 of 4" style="background:linear-gradient(135deg,#ff5e7a,#ffb45e)"></div>
    <div class="nuda-gc2-snap-thumbs__slide" role="group" aria-roledescription="slide" aria-label="2 of 4" style="background:linear-gradient(135deg,#62b6ff,#9d6dff)"></div>
    <!-- More slides -->
  </div>
  <div class="nuda-gc2-snap-thumbs__strip">
    <button type="button" class="nuda-gc2-snap-thumbs__thumb is-on" aria-label="Go to slide 1" aria-current="true" style="background:linear-gradient(135deg,#ff5e7a,#ffb45e)"></button>
    <button type="button" class="nuda-gc2-snap-thumbs__thumb" aria-label="Go to slide 2" style="background:linear-gradient(135deg,#62b6ff,#9d6dff)"></button>
    <!-- More thumbs -->
  </div>
</div>

.nuda-gc2-snap-thumbs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 280px;
}

.nuda-gc2-snap-thumbs__viewport {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  border-radius: 12px;
  scrollbar-width: none;
}

.nuda-gc2-snap-thumbs__viewport::-webkit-scrollbar {
  display: none;
}

.nuda-gc2-snap-thumbs__slide {
  flex: 0 0 100%;
  height: 130px;
  border-radius: 12px;
  scroll-snap-align: center;
  border: 1px solid rgba(255,255,255,.08);
}

.nuda-gc2-snap-thumbs__strip {
  display: flex;
  gap: 6px;
  justify-content: center;
}

.nuda-gc2-snap-thumbs__thumb {
  width: 36px;
  height: 28px;
  padding: 0;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: .55;
  transition: opacity .25s,border-color .25s,transform .25s;
  min-width: 0;
}

.nuda-gc2-snap-thumbs__thumb:hover {
  opacity: .85;
  transform: translateY(-1px);
}

.nuda-gc2-snap-thumbs__thumb.is-on {
  opacity: 1;
  border-color: #e4ff54;
}

.nuda-gc2-snap-thumbs__thumb:focus-visible {
  outline: 2px solid #e4ff54;
  outline-offset: 2px;
}

@media (prefers-reduced-motion:reduce) {
  .nuda-gc2-snap-thumbs__viewport {
    scroll-behavior: auto;
  }
  .nuda-gc2-snap-thumbs__thumb {
    transition: none;
  }
}