Hybrid post-quantum TLS

<div class="sd"><div class="sd-head"><strong>HYBRID TLS</strong><span id="state">live check</span></div><div class="sd-stage"><div class="branches"><div class="tile" id="classic">ECDHE</div><div class="tile" id="quantum">ML-KEM</div></div><div class="join">╲　╱</div><div class="tile key" id="key">session key</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)%3;document.getElementById('classic').classList.toggle('lit',n>=1);document.getElementById('quantum').classList.toggle('lit',n>=2);document.getElementById('key').classList.toggle('lit',n===2);document.getElementById('state').textContent=['handshake','traditional share','hybrid secret'][n];document.getElementById('caption').textContent=['negotiate both groups','ECDHE contributes one secret','ML-KEM joins key derivation'][n]}advance();setInterval(advance,780);
document.querySelector('.sd').addEventListener('pointerdown',advance);