프로모션 효율

<div class="water"><div class="caption">PROMOTION PROFIT <b id="net">+$18</b></div><div class="steps"><div><i class="gain"></i><span>EXTRA<br>SALES</span><strong>+90</strong></div><div><i class="leak"></i><span>DISCOUNT<br>LEAK</span><strong id="leak">-42</strong></div><div><i class="cost"></i><span>CAMPAIGN<br>COST</span><strong>-30</strong></div></div><label>DISCOUNT LEAK <input id="leakRange" type="range" min="20" max="80" value="42"></label></div>

.water{width:min(92%,540px);font:800 clamp(10px,2.5vmin,14px)/1.15 sans-serif}.caption{display:flex;justify-content:space-between;gap:6px}.caption b{color:var(--accent);font-size:clamp(18px,5vmin,32px)}.steps{display:flex;align-items:end;gap:7px;height:clamp(72px,22vmin,140px);margin:10px 0}.steps>div{flex:1;position:relative;height:100%;display:flex;flex-direction:column;justify-content:end;text-align:center}.steps i{display:block;height:70%;background:var(--accent);transition:height .3s}.steps .leak{height:45%;background:var(--accent-3)}.steps .cost{height:55%;background:var(--accent-2)}.steps span{position:absolute;bottom:6px;left:0;right:0;color:white}.steps>div:last-child span{color:#211b19}.steps strong{position:absolute;top:0;left:0;right:0}label{display:block;color:var(--muted)}input{display:block;width:100%;accent-color:var(--accent)}@media(min-width:700px){.water{font-size:13px}}@media(min-width:700px){body>:first-child{transform:scale(1.25);transform-origin:center}}

const r=document.querySelector('#leakRange');function draw(){const leak=+r.value,net=60-leak;document.querySelector('#leak').textContent='-'+leak;document.querySelector('#net').textContent=(net<0?'-$'+Math.abs(net):'+$'+net);document.querySelector('.leak').style.height=(leak/90*70)+'%'}r.oninput=draw;draw();setTimeout(()=>{r.value=75;draw()},650);setTimeout(()=>{r.value=42;draw()},2600);