폼 입력 마찰

<div class="forms"><div class="mode">FORM <b id="mode">6 FIELDS</b></div><div class="fields" id="fields"></div><div class="complete"><i id="progress"></i></div><span id="state">COMPLETING…</span></div>

.forms{width:min(72%,360px);font:800 clamp(10px,max(1.8vmin,1vw),14px)/1.2 sans-serif}.mode{display:flex;justify-content:space-between;margin-bottom:8px;color:var(--muted)}.mode b{color:var(--accent)}.fields{display:grid;grid-template-columns:1fr 1fr;gap:5px}.fields i{height:clamp(10px,2.5vmin,20px);border:2px solid var(--line);background:var(--surface)}.fields i.done{border-color:var(--accent);background:var(--accent)}.complete{height:5px;background:var(--line);margin-top:10px}.complete i{display:block;height:100%;width:0;background:var(--accent);transition:width .3s}#state{display:block;text-align:right;margin-top:5px;color:var(--muted)}

const fields=document.querySelector('#fields'),mode=document.querySelector('#mode'),progress=document.querySelector('#progress'),state=document.querySelector('#state');let tick=0;function draw(){const short=tick>=6,count=short?3:6,filled=short?Math.min(tick-6,3):Math.min(tick,6);mode.textContent=short?'3 FIELDS':'6 FIELDS';fields.innerHTML=Array.from({length:count},(_,i)=>'<i class="'+(i<filled?'done':'')+'"></i>').join('');progress.style.width=filled/count*100+'%';state.textContent=filled===count?'COMPLETE':'COMPLETING…';tick=(tick+1)%11}draw();setInterval(draw,650);