Post-quantum migration

<div class="sd"><div class="sd-head"><strong>PQC MIGRATION</strong><span id="state">live check</span></div><div class="sd-stage"><div class="assets"><div class="tile" id="a0">TLS</div><div class="tile" id="a1">signing</div><div class="tile" id="a2">archive</div></div><div class="meter"><b id="meter"></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=0;function advance(){n=(n+1)%4;[0,1,2].forEach(i=>document.getElementById('a'+i).classList.toggle('converted',i<n));document.getElementById('meter').style.width=n*33.33+'%';document.getElementById('state').textContent=n+' / 3 migrated';document.getElementById('caption').textContent=n===0?'inventory cryptographic assets':'validate '+['','TLS','signing','archive'][n]+' migration'}advance();setInterval(advance,780);
document.querySelector('.sd').addEventListener('pointerdown',advance);