게이즈 호버

<div class="row">
  <button class="gb" id="b0">Play</button>
  <button class="gb" id="b1">Save</button>
  <button class="gb" id="b2">Share</button>
</div><div class="dot" id="gd"></div>

.dot{position:absolute;width:16px;height:16px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 7px color-mix(in srgb,var(--accent) 22%,transparent);pointer-events:none;
  transform:translate(-50%,-50%);transition:left .5s cubic-bezier(.3,.8,.3,1),top .5s cubic-bezier(.3,.8,.3,1)}
body{background:radial-gradient(circle at 50% 30%,#1c2440,#0b0d18 70%)}
.row{position:absolute;inset:0;display:flex;gap:clamp(10px,3vmin,20px);align-items:center;justify-content:center}
.gb{padding:clamp(10px,3vmin,16px) clamp(16px,4vmin,26px);border-radius:999px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#cfd2e6;font-weight:700;font-size:clamp(11px,3vmin,14px);
  transition:transform .35s,background .35s,color .35s,box-shadow .35s}
.gb.focus{background:var(--accent);color:#fff;transform:scale(1.1);box-shadow:0 0 0 8px color-mix(in srgb,var(--accent) 20%,transparent)}

const btns=[...document.querySelectorAll('.gb')];
const dot=document.getElementById('gd');
let i=0;
function place(){
  const r=btns[i].getBoundingClientRect();
  dot.style.left=(r.left+r.width/2)+'px'; dot.style.top=(r.top-10)+'px';
  btns.forEach((b,j)=>b.classList.toggle('focus',j===i));
}
place();
setInterval(()=>{ i=(i+1)%btns.length; place(); },1500);