Container-aware GOMAXPROCS

<div class="v"><header><b>CONTAINER CPU LIMIT</b><span id="state"></span></header><main><div class="cores" id="cores"></div><div class="limit" id="limit"></div></main><footer>default follows container limit</footer></div>

.v{width:min(92vw,660px);height:min(86vh,310px);box-sizing:border-box;padding:clamp(9px,2.5vmin,18px);border:1px solid var(--line);border-radius:14px;background:var(--surface);display:flex;flex-direction:column;gap:7px;color:var(--fg);font:500 clamp(15px,3.2vmin,17px)/1.25 var(--font-sans, sans-serif)}.v header,.v footer{display:flex;justify-content:space-between;align-items:center;gap:8px;white-space:nowrap}.v header b{color:var(--accent);font-size:.9em}.v header span,.v footer{color:var(--muted);font-size:.82em}.v main{flex:1;min-height:0;position:relative;overflow:hidden}.v .mono{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.v .active{background:var(--accent)!important;color:var(--bg)!important;border-color:var(--accent)!important}.v .muted{opacity:.28} .cores{height:62%;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(2,minmax(0,1fr));gap:5px}.core{min-height:0;border:1px solid var(--line);border-radius:5px;display:grid;place-items:center;font:600 .8em ui-monospace,monospace}.limit{margin-top:8px;text-align:center;color:var(--accent);font:600 .85em ui-monospace,monospace}

let n=0;function draw(){const cap=n?2:4;document.getElementById("cores").innerHTML=Array.from({length:8},(_,i)=>"<div class=\"core "+(i<cap?"active":"muted")+"\">P"+(i+1)+"</div>").join("");document.getElementById("limit").textContent="GOMAXPROCS "+cap+" · host 8";document.getElementById("state").textContent="quota "+cap;n=1-n}draw();setInterval(draw,1400)