Splash Screen

<div class="stage"><div class="phone"><div class="notch"></div><div class="screen" id="screen">
<div class="homeUnder">
  <div class="topbar2">Home</div>
  <div class="grid2"><div class="card3"></div><div class="card3"></div><div class="card3"></div><div class="card3"></div></div>
</div>
<div class="splash" id="splash"><div class="logo" id="logo"></div></div></div><div class="home"></div></div></div>

.stage{position:absolute;inset:0;display:grid;place-items:center;overflow:hidden}
.phone{position:relative;height:90vmin;max-height:640px;aspect-ratio:9/19.5;background:#08080c;
  border-radius:20%/8.6%;box-shadow:0 0 0 2px rgba(255,255,255,.08) inset,0 12px 30px rgba(0,0,0,.35)}
.phone .notch{position:absolute;left:50%;top:0;transform:translateX(-50%);width:38%;height:5.6%;
  background:#08080c;border-radius:0 0 46% 46%;z-index:80}
.phone .screen{position:absolute;top:7.6%;left:3%;right:3%;bottom:3%;border-radius:11%/4.6%;overflow:hidden;
  background:var(--surface);color:var(--fg)}
.phone .home{position:absolute;left:50%;bottom:1.1%;transform:translateX(-50%);width:32%;height:3px;
  border-radius:2px;background:rgba(255,255,255,.45);z-index:80}
.pfx{position:absolute;left:0;top:0;width:16px;height:16px;margin:-8px 0 0 -8px;border-radius:50%;
  background:color-mix(in srgb,var(--accent) 55%,transparent);
  box-shadow:0 0 0 6px color-mix(in srgb,var(--accent) 15%,transparent);pointer-events:none;z-index:999;
  transition:opacity .2s}
.pfx.hold{width:30px;height:30px;margin:-15px 0 0 -15px;
  box-shadow:0 0 0 9px color-mix(in srgb,var(--accent) 20%,transparent);
  transition:width .5s linear,height .5s linear,margin .5s linear,box-shadow .5s linear,opacity .2s}

.homeUnder{position:absolute;inset:0;background:var(--surface)}
.topbar2{padding:7% 8% 4%;font-weight:800;font-size:clamp(8px,3vmin,12px);border-bottom:1px solid var(--line)}
.grid2{padding:6% 8%;display:grid;grid-template-columns:1fr 1fr;gap:6%}
.card3{aspect-ratio:1;border-radius:10%;background:var(--line)}
.splash{position:absolute;inset:0;display:grid;place-items:center;background:var(--accent);z-index:5;transition:opacity .5s}
.splash.hide{opacity:0;pointer-events:none}
.logo{width:clamp(22px,15vmin,40px);height:clamp(22px,15vmin,40px);border-radius:26%;background:#fff;
  transform:scale(.5);opacity:0;transition:transform .45s cubic-bezier(.34,1.56,.64,1),opacity .3s}
.logo.show{transform:scale(1);opacity:1}

const pfx=document.createElement('div');pfx.className='pfx';document.body.appendChild(pfx);
const screenEl=document.getElementById('screen');
let pfxAuto=true;
function pfxHide(){pfx.style.opacity='0';}
addEventListener('pointerdown',()=>{pfxAuto=false;pfxHide();},{capture:true});
function pfxAt(fx,fy){
  const r=screenEl.getBoundingClientRect();
  const x=r.left+r.width*fx, y=r.top+r.height*fy;
  pfx.style.transform='translate('+x+'px,'+y+'px)';
  return {x,y};
}
function pfxWalk(x0,y0,x1,y1,ms){
  return new Promise(res=>{
    const start=performance.now();
    function step(now){
      if(!pfxAuto) return res();
      const p=Math.min(1,(now-start)/ms), e=1-Math.pow(1-p,3);
      pfxAt(x0+(x1-x0)*e, y0+(y1-y0)*e);
      if(p<1) requestAnimationFrame(step); else res();
    }
    requestAnimationFrame(step);
  });
}
function pfxWait(ms){
  return new Promise(res=>{
    const start=performance.now();
    function step(now){ if(!pfxAuto) return res(); if(now-start<ms) requestAnimationFrame(step); else res(); }
    requestAnimationFrame(step);
  });
}

const splash=document.getElementById('splash'), logo=document.getElementById('logo');
function skip(){ splash.classList.add('hide'); }
splash.addEventListener('pointerdown',()=>{ pfxAuto=false; pfxHide(); skip(); });
async function autoSeq(){
  while(pfxAuto){
    splash.classList.remove('hide'); logo.classList.remove('show'); void splash.offsetWidth;
    pfxAt(0.5,0.5);
    await pfxWait(200); if(!pfxAuto)break;
    logo.classList.add('show');
    await pfxWait(950); if(!pfxAuto)break;
    skip();
    await pfxWait(1300);
  }
}
autoSeq();