마지막 클릭 기여

<div class="lc"><div class="route">SOCIAL <i>→</i> <b id="last">SEARCH</b> <i>→</i> BUY</div><div class="credit"><div id="social"><span>SOCIAL</span><b>0%</b><i></i></div><div id="search"><span>SEARCH</span><b>100%</b><i></i></div><div id="email"><span>EMAIL</span><b>0%</b><i></i></div></div><small>ALL CREDIT → LAST ELIGIBLE CLICK</small></div>

.lc{width:min(86%,540px);font:900 clamp(10px,max(2vmin,1vw),15px)/1.2 sans-serif}.route{background:var(--fg);color:var(--bg);padding:clamp(8px,2vmin,16px);text-align:center;white-space:nowrap}.route i{color:var(--accent);font-style:normal;margin:0 3px}.route b{color:var(--accent-2)}.credit{display:grid;gap:clamp(6px,1.6vmin,11px);margin:clamp(12px,3vmin,25px) 0}.credit>div{display:grid;grid-template-columns:clamp(45px,10vmin,78px) clamp(24px,6vmin,45px) 1fr;gap:8px;align-items:center}.credit b{text-align:right}.credit i{height:clamp(11px,2.7vmin,20px);background:var(--accent);width:0;transition:width .6s}.lc small{color:var(--muted);letter-spacing:.05em;font-size:clamp(10px,max(1.5vmin,1vw),12px)}

let last='search';function render(){document.querySelector('#last').textContent=last.toUpperCase();for(const id of ['social','search','email']){const el=document.querySelector('#'+id),on=id===last;el.querySelector('b').textContent=on?'100%':'0%';el.querySelector('i').style.width=on?'100%':'0%'}}render();setInterval(()=>{last=last==='search'?'email':'search';render()},1650);