.bitstair{--n:#253447;--o:#cf750c;--m:#66717e;--bd:#dfe5ea;--soft:#f7f8fa;font-family:inherit;color:#1f2933;max-width:1180px;margin:24px auto;width:100%;box-sizing:border-box}.bitstair *{box-sizing:border-box}.bitstair__head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:18px}.bitstair__head h2{margin:3px 0 7px;color:var(--n);font-size:30px}.bitstair__head p{margin:0;color:var(--m);max-width:760px}.bitstair__head>b,.bitstair__head div>b{font-size:11px;letter-spacing:.08em;color:var(--o)}.bitstair__head>span{white-space:nowrap;background:#fff7ed;color:#9a4e00;border:1px solid #f2d4ad;border-radius:999px;padding:7px 10px;font-size:12px;font-weight:700}.bitstair__layout{display:grid;grid-template-columns:minmax(0,.88fr) minmax(380px,1.12fr);gap:18px;align-items:start}.bitstair__panel,.bitstair__results{border:1px solid var(--bd);border-radius:14px;background:#fff;padding:20px;min-width:0}.bitstair__results{position:sticky;top:18px}.bitstair section{padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid #edf0f2}.bitstair h3{font-size:16px;color:var(--n);margin:0 0 12px}.bitstair label{display:block;font-size:12px;font-weight:700;color:#4b5563}.bitstair input{display:block;width:100%;height:44px;margin-top:5px;border:1px solid #ccd5de;border-radius:9px;padding:8px 10px;background:#fff;color:#17212b;font:inherit;font-size:16px}.g2,.g3{display:grid;gap:10px;margin-top:10px}.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.check{display:flex!important;align-items:center;gap:8px;font-size:13px!important}.check input{width:18px;height:18px;margin:0}.hint{font-size:12px;color:var(--m)}.actions{display:flex;gap:8px}.primary,.link{font:inherit;font-weight:700;border-radius:9px;cursor:pointer}.primary{background:var(--o);border:1px solid var(--o);color:#fff;padding:12px 18px}.link{border:0;background:transparent;color:var(--m);padding:11px}.error{color:#b42318;font-weight:700;font-size:13px}.empty{min-height:340px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--m);gap:6px}.empty strong{color:var(--n);font-size:18px}.summary{background:#fff8ee;border:1px solid #f0d3ad;border-radius:12px;padding:14px;margin-bottom:14px}.summary strong{display:block;color:var(--n);font-size:25px}.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:10px}.metrics div{background:#fff;border:1px solid #eee5d9;border-radius:8px;padding:9px}.metrics span{display:block;color:var(--m);font-size:10px}.metrics b{font-size:14px;color:var(--n)}.fit{border-radius:10px;padding:10px 12px;margin:10px 0 14px;font-size:13px;font-weight:700}.fit.pass{background:#f0fdf4;border:1px solid #b7e4c7;color:#166534}.fit.fail{background:#fff1f2;border:1px solid #fecdd3;color:#9f1239}.diagram{border:1px solid var(--bd);border-radius:12px;padding:12px;margin:12px 0;background:#fafbfc}.diagram svg{display:block;width:100%;height:auto}.tablewrap{overflow-x:auto;margin:10px 0 16px}.bitstair table{border-collapse:collapse;width:100%;min-width:500px;font-size:12px}.bitstair th,.bitstair td{text-align:left;padding:8px;border-bottom:1px solid #e8edf1;white-space:nowrap}.bitstair th{font-size:10px;text-transform:uppercase;color:var(--m)}.layoutbox{background:var(--soft);border-radius:10px;padding:12px}.layoutbox p{font-size:12px}.disclaimer{margin-top:14px;padding:12px 14px;border-left:3px solid var(--o);background:var(--soft);font-size:12px;line-height:1.5;color:var(--m)}.bitstair [hidden]{display:none!important}
@media(max-width:920px){.bitstair__layout{grid-template-columns:1fr}.bitstair__results{position:static}.g3{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.bitstair{overflow-x:hidden}.bitstair__head{display:block}.bitstair__head>span{display:inline-block;margin-top:10px}.bitstair__panel,.bitstair__results{padding:14px}.g2,.g3{grid-template-columns:1fr}.actions{display:grid;grid-template-columns:1fr}.primary,.link{width:100%}.metrics{grid-template-columns:1fr}}