Keyless signing

<div class="sd"><div class="sd-head"><strong>KEYLESS SIGNING</strong><span id="state">live check</span></div><div class="sd-stage"><div class="ks-flow"><div id="k0">OIDC<br>identity</div><div id="k1">short-lived<br>certificate</div><div id="k2">artifact<br>signature</div><div id="k3">verify<br>identity</div></div><div class="ks-track"><b id="ks-progress"></b></div></div><div class="sd-foot"><span id="caption">checking boundary</span><span>tap to step</span></div></div>

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let n=-1;function advance(){n=(n+1)%4;for(let i=0;i<4;i++)document.getElementById('k'+i).classList.toggle('on',i<=n);document.getElementById('ks-progress').style.width=(n+1)*25+'%';document.getElementById('state').textContent=['identify','certify','sign','verify'][n];document.getElementById('caption').textContent=['identify CI workload','bind temporary key to identity','sign artifact digest','check signature and identity'][n]}advance();setInterval(advance,750);
document.querySelector('.sd').addEventListener('pointerdown',advance);