Modular monolith

<div class="scene"><div class="title">MODULE BOUNDARY</div><div class="row"><div class="tile">ORDERS</div><div class="track"><div id="packet">CALL →</div><div id="routeLabel">public port</div></div><div class="boundary"><div class="tile on">PORT</div><div class="tile">PAYMENT CORE</div></div></div><div id="verdict" class="muted">public call accepted</div></div>

.scene{width:min(94vw,760px);height:min(86vh,320px);padding:clamp(10px,2.5vmin,18px);border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--fg);font:500 clamp(11px,1.3vw,16px)/1.25 "Pretendard Variable",Pretendard,-apple-system,sans-serif;display:flex;flex-direction:column;gap:clamp(7px,1.6vmin,12px);overflow:hidden}.scene *{box-sizing:border-box}.title{font-weight:750;color:var(--accent)}.muted{color:var(--muted)}.mono{font-family:ui-monospace,monospace}.row{display:flex;align-items:center;justify-content:center;gap:clamp(5px,1.4vmin,12px);flex:1;min-height:0}.tile{border:1px solid var(--line);border-radius:8px;background:var(--bg);padding:clamp(6px,1.6vmin,12px);text-align:center;min-width:0}.on{border-color:var(--accent)!important;background:color-mix(in srgb,var(--accent) 12%,var(--surface))!important}.pulse{animation:pulse 1.6s infinite alternate}@keyframes pulse{to{border-color:var(--accent);transform:translateY(-3px)}}.row>.tile:first-child{flex:0 0 20%;padding:6px 1px}.track{flex:1;text-align:center;min-width:54px}.track #packet{color:var(--accent);transition:transform .5s}.boundary{border:2px dashed var(--accent);border-radius:10px;padding:4px;display:flex;gap:4px;align-items:center;flex:0 0 52%;min-width:0}.boundary .tile{padding:.4em .2em;flex:1}

let bad=false;function tick(){bad=!bad;document.getElementById('routeLabel').textContent=bad?'direct internal call':'public port';document.getElementById('packet').style.transform=bad?'translateY(13px)':'translateY(-5px)';document.getElementById('verdict').textContent=bad?'BLOCKED: bypassed port':'PASS: public call accepted';document.getElementById('verdict').style.color=bad?'var(--accent-3)':'var(--accent)'}tick();setInterval(tick,1300)