Segmented Page Groups

<nav aria-label="Pagination" class="nuda-pg2-segmented">
  <div class="nuda-pg2-segmented__track">
    <span class="nuda-pg2-segmented__indicator" aria-hidden="true"></span>
    <button class="nuda-pg2-segmented__seg nuda-pg2-segmented__seg--on" aria-current="page">1–10</button>
    <button class="nuda-pg2-segmented__seg">11–20</button>
    <button class="nuda-pg2-segmented__seg">21–30</button>
  </div>
</nav>

.nuda-pg2-segmented {
  width: 260px;
}

.nuda-pg2-segmented__track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3,1fr);
  background: #161616;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  padding: 3px;
}

.nuda-pg2-segmented__indicator {
  position: absolute;
  top: 3px;
  left: 3px;
  width: calc(33.333% - 4px);
  height: calc(100% - 6px);
  background: #e4ff54;
  border-radius: 8px;
  transform: translateX(0);
  animation: _nuda-pg2segmentedin .4s cubic-bezier(.2,.8,.2,1);
}

.nuda-pg2-segmented__seg {
  position: relative;
  z-index: 1;
  height: 40px;
  border: none;
  background: transparent;
  color: #999;
  font-size: .72rem;
  cursor: pointer;
  border-radius: 8px;
  transition: color .15s;
}

.nuda-pg2-segmented__seg:hover {
  color: #fafafa;
}

.nuda-pg2-segmented__seg--on {
  color: #0a0a0a;
  font-weight: 700;
}

.nuda-pg2-segmented__seg:focus-visible {
  outline: 2px solid #e4ff54;
  outline-offset: 2px;
}

@keyframes _nuda-pg2segmentedin {
  from {
    opacity: 0;
    transform: translateX(0) scale(.85);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@media (prefers-reduced-motion:reduce) {
  .nuda-pg2-segmented__indicator {
    animation: none !important;
  }
}