프로모션 할인

<div class="disc"><div class="panels"><div><small>UNITS</small><b id="units">100</b><i id="ub"></i></div><div><small>CONTRIBUTION</small><b id="profit">$5,000</b><i id="pb"></i></div></div><label>DISCOUNT <b id="pct">0%</b><input id="discount" type="range" min="0" max="40" value="0"></label></div>

.disc{width:min(90%,530px);font:900 clamp(10px,max(2vmin,1vw),15px)/1.2 sans-serif}.panels{display:flex;gap:8px;height:clamp(90px,30vmin,170px)}.panels>div{flex:1;border:2px solid var(--line);padding:10px;display:flex;flex-direction:column;overflow:hidden}.panels small{color:var(--muted)}.panels b{font-size:clamp(22px,6vmin,44px);margin:5px 0;letter-spacing:-.05em}.panels i{display:block;height:clamp(13px,4vmin,25px);background:var(--accent);width:50%;transition:.35s}.panels>div+div i{background:var(--accent-2)}label{display:block;margin-top:clamp(12px,3vmin,25px)}label b{float:right;color:var(--accent)}input{display:block;width:100%;accent-color:var(--accent)}small{font-size:max(.833em,10px,1vw)}@media(min-width:700px){body>:first-child{transform:scale(1.25);transform-origin:center}}

const r=document.querySelector('#discount');function draw(){const d=+r.value,u=100+d*2,profit=u*(100-d-50);document.querySelector('#pct').textContent=d+'%';document.querySelector('#units').textContent=u;document.querySelector('#profit').textContent='$'+profit.toLocaleString();document.querySelector('#ub').style.width=(u/180*100)+'%';document.querySelector('#pb').style.width=(Math.max(0,profit)/6500*100)+'%'}r.oninput=draw;draw();setTimeout(()=>{r.value=30;draw()},650);setTimeout(()=>{r.value=0;draw()},2600);