Predictive ad ranking

<div class="ranking"><div class="signal">LATEST SIGNAL <b id="signal">READING</b></div><div class="rank" data-ad="0"><strong>A</strong><i></i><span>1</span></div><div class="rank" data-ad="1"><strong>B</strong><i></i><span>2</span></div><div class="rank" data-ad="2"><strong>C</strong><i></i><span>3</span></div><div class="footer">PREDICTED ORDER <b id="order">A → B → C</b></div></div>

.ranking{width:min(86%,460px);font:800 clamp(10px,max(2vmin,1vw),16px)/1.2 sans-serif}.signal{display:flex;justify-content:space-between;background:var(--fg);color:var(--bg);padding:clamp(7px,1.8vmin,13px)}.signal b{color:var(--bg)}.rank{display:grid;grid-template-columns:clamp(20px,5vmin,35px) 1fr auto;gap:clamp(5px,1.5vmin,11px);align-items:center;padding:clamp(6px,1.4vmin,10px);border:1px solid var(--line);background:var(--surface);margin-top:clamp(5px,1vmin,8px)}.rank i{display:block;height:clamp(7px,1.8vmin,13px);background:var(--accent);transition:width .5s}.rank span{font-size:clamp(13px,3vmin,23px);color:var(--accent)}.footer{border-top:2px solid var(--fg);display:flex;justify-content:space-between;margin-top:clamp(8px,2vmin,16px);padding-top:6px}.footer b{color:var(--accent)}

const cases=[['READING',[85,55,30]],['PRODUCT VIEW',[45,90,65]],['COMPARE ITEMS',[55,70,95]]];let step=0;function draw(){const [signal,scores]=cases[step++%3];document.getElementById('signal').textContent=signal;const order=[0,1,2].sort((a,b)=>scores[b]-scores[a]);document.querySelectorAll('[data-ad]').forEach((el,i)=>{el.querySelector('i').style.width=scores[i]+'%';el.querySelector('span').textContent=String(order.indexOf(i)+1)});document.getElementById('order').textContent=order.map(i=>'ABC'[i]).join(' → ')}draw();setInterval(draw,1350);