Branching Stepper

<div class="nuda-st2-branch-path">
  <div class="nuda-st2-branch-path__node is-done">1</div>
  <div class="nuda-st2-branch-path__fork">
    <span class="nuda-st2-branch-path__arm nuda-st2-branch-path__arm--up is-active"></span>
    <span class="nuda-st2-branch-path__arm nuda-st2-branch-path__arm--down"></span>
  </div>
  <div class="nuda-st2-branch-path__branches">
    <div class="nuda-st2-branch-path__node is-active" aria-current="step">2a</div>
    <div class="nuda-st2-branch-path__node is-future">2b</div>
  </div>
  <p class="nuda-st2-branch-path__caption">Business account selected — routed to compliance check</p>
</div>

.nuda-st2-branch-path {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  width: 100%;
  max-width: 280px;
  font-size: 11px;
}

.nuda-st2-branch-path__node {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  color: #a0a0a8;
  font-size: 11px;
  font-weight: 700;
}

.nuda-st2-branch-path__node.is-done {
  background: #e4ff54;
  border-color: #e4ff54;
  color: #09090b;
}

.nuda-st2-branch-path__node.is-active {
  background: rgba(228,255,84,.1);
  border-color: #e4ff54;
  color: #e4ff54;
}

.nuda-st2-branch-path__node.is-future {
  color: #63636e;
  opacity: .5;
}

.nuda-st2-branch-path__fork {
  position: relative;
  width: 60px;
  height: 26px;
}

.nuda-st2-branch-path__arm {
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  background: rgba(255,255,255,.08);
  transform-origin: top;
  transform: scaleY(0);
}

.nuda-st2-branch-path__arm--up {
  transform: translateX(-16px) rotate(-28deg) scaleY(0);
}

.nuda-st2-branch-path__arm--down {
  transform: translateX(16px) rotate(28deg) scaleY(0);
}

.nuda-st2-branch-path__arm.is-active {
  background: #e4ff54;
  animation: _nuda-st2branchpath-draw .5s cubic-bezier(.16,1,.3,1) .1s forwards;
}

.nuda-st2-branch-path__arm--up.is-active {
  animation-name: _nuda-st2branchpath-drawup;
}

.nuda-st2-branch-path__branches {
  display: flex;
  gap: 34px;
}

.nuda-st2-branch-path__caption {
  margin: 10px 0 0;
  color: #a0a0a8;
  text-align: center;
}

@keyframes _nuda-st2branchpath-draw {
  to {
    transform: translateX(16px) rotate(28deg) scaleY(1);
  }
}

@keyframes _nuda-st2branchpath-drawup {
  to {
    transform: translateX(-16px) rotate(-28deg) scaleY(1);
  }
}

@media (prefers-reduced-motion:reduce) {
  .nuda-st2-branch-path__arm.is-active {
    animation: none;
    transform: translateX(-16px) rotate(-28deg) scaleY(1);
  }
  .nuda-st2-branch-path__arm--down.is-active {
    transform: translateX(16px) rotate(28deg) scaleY(1);
  }
}