Multimodal video ad creation

<div class="video-maker"><div class="top">STORYBOARD <span id="shot">SHOT 2 / 3</span></div><div class="formats"><div class="frame wide"><i id="wide-scene"></i><b>HORIZONTAL</b></div><div class="frame tall"><i id="tall-scene"></i><b>VERTICAL</b></div></div><div class="timeline"><div data-shot="0">01</div><div data-shot="1">02</div><div data-shot="2">03</div></div><input id="scrub" type="range" min="0" max="2" value="1" aria-label="Storyboard shot" /></div>

.video-maker{width:min(88%,520px);font:800 clamp(10px,max(2vmin,1vw),16px)/1.2 sans-serif}.top{display:flex;justify-content:space-between;border-bottom:2px solid var(--fg);padding-bottom:6px}.top span{color:var(--accent)}.formats{display:flex;align-items:center;justify-content:center;gap:clamp(9px,3vmin,24px);height:clamp(90px,25vmin,190px);margin:clamp(5px,1.5vmin,12px) 0}.frame{border:2px solid var(--fg);background:var(--surface);padding:5px;display:grid;gap:3px;text-align:center;flex:none;box-sizing:border-box}.frame.wide{width:clamp(95px,28vmin,190px)}.frame.tall{width:clamp(70px,18vmin,110px)}.frame i{display:block;background:linear-gradient(145deg,var(--accent-3) 48%,var(--accent) 48%);position:relative;overflow:hidden}.wide i{height:clamp(55px,15vmin,105px)}.tall i{height:clamp(70px,20vmin,140px)}.frame i:after{content:'';position:absolute;width:35%;aspect-ratio:1;border-radius:50%;background:var(--fg);left:var(--position,45%);top:26%;transition:left .4s}.frame b{font-size:clamp(10px,max(1.7vmin,1vw),13px)}.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}.timeline div{border:1px solid var(--line);padding:3px;text-align:center}.timeline .on{background:var(--accent);color:var(--bg);border-color:var(--accent)}input{width:100%;margin:clamp(4px,1vmin,8px) 0 0;accent-color:var(--accent)}

const input=document.getElementById('scrub');let step=0;let manual=false;function draw(n){document.getElementById('shot').textContent='SHOT '+(n+1)+' / 3';document.querySelectorAll('[data-shot]').forEach((el,i)=>el.classList.toggle('on',i===n));document.getElementById('wide-scene').style.setProperty('--position',[15,45,65][n]+'%');document.getElementById('tall-scene').style.setProperty('--position',[25,42,55][n]+'%');input.value=String(n)}input.addEventListener('input',()=>{manual=true;draw(Number(input.value))});draw(1);setInterval(()=>{if(!manual)draw(step++%3)},1100);