:root{
  --pue-blue:#1269ad;
  --pue-blue-dark:#0d578f;
  --pue-ink:#18323a;
  --pue-muted:#65777e;
  --pue-line:#dfe8ec;
  --pue-blue-soft:#eef6fb;
  --pue-green:#18794e;
  --pue-green-soft:#edf8f3;
  --pue-amber:#9a6700;
  --pue-amber-soft:#fff8e8;
  --pue-red:#b42318;
  --pue-red-soft:#fff1f0;
}
.pue-hero{padding:54px 0 34px;background:linear-gradient(180deg,#fff 0%,#f9fcfe 100%);border-bottom:1px solid #edf2f4}
.pue-breadcrumb{display:flex;gap:9px;align-items:center;margin-bottom:20px;font-size:13px;font-weight:750;color:#718188}
.pue-breadcrumb a{color:var(--pue-blue)}
.pue-hero-row{display:grid;grid-template-columns:1fr auto;gap:48px;align-items:end}
.pue-title-wrap{max-width:830px}
.pue-kicker,.pue-step{display:block;color:var(--pue-blue);font-size:12px;font-weight:850;letter-spacing:.07em;text-transform:uppercase}
.pue-title-wrap h1{margin:6px 0 14px;font-size:clamp(38px,5vw,60px);line-height:1.03;letter-spacing:-.045em;color:var(--pue-ink)}
.pue-title-wrap p{max-width:780px;margin:0;color:var(--pue-muted);font-size:18px}
.pue-mode-switch{display:grid;grid-template-columns:1fr 1fr;width:400px;padding:5px;border:1px solid #d8e3e8;border-radius:16px;background:#f5f8f9}
.pue-mode-btn{border:0;border-radius:11px;padding:13px 16px;background:transparent;color:#52686f;text-align:left;cursor:pointer}
.pue-mode-btn strong{display:block;font-size:15px}
.pue-mode-btn span{display:block;margin-top:2px;font-size:12px;color:#7b8b91}
.pue-mode-btn.is-active{background:#fff;color:var(--pue-blue);box-shadow:0 4px 14px rgba(21,49,59,.09)}

.pue-tool-section{padding:38px 0 76px;background:#f8fbfc}
.pue-mode-panel[hidden]{display:none!important}
.pue-tool-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);gap:22px;align-items:start}
.pue-panel{background:#fff;border:1px solid var(--pue-line);border-radius:20px;padding:26px;box-shadow:0 10px 30px rgba(21,49,59,.045)}
.pue-panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:22px}
.pue-panel-head h2{margin:4px 0 0;font-size:23px;letter-spacing:-.025em}
.pue-live-badge,.pue-table-note{padding:6px 9px;border-radius:999px;background:var(--pue-blue-soft);color:var(--pue-blue);font-size:11px;font-weight:800;white-space:nowrap}
.pue-section-label{margin:25px 0 12px;padding-bottom:7px;border-bottom:1px solid #edf2f4;color:#4c646d;font-size:12px;font-weight:850;text-transform:uppercase;letter-spacing:.06em}
.pue-section-label:first-of-type{margin-top:0}

.pue-fields{display:grid;gap:16px}
.pue-field-row{display:grid;gap:14px}
.pue-field-row-2{grid-template-columns:1fr 1fr}
.pue-field-row-3{grid-template-columns:repeat(3,1fr)}
.pue-field-row-4{grid-template-columns:repeat(4,1fr)}
.pue-field>span{display:block;margin-bottom:7px;color:#344e57;font-size:13px;font-weight:800}
.pue-field small{display:block;margin-top:6px;color:#7a8b91;font-size:12px;line-height:1.4}
.pue-money-input,.pue-percent-input,.pue-plain-input{display:flex;align-items:center;min-height:48px;border:1px solid #cbd9df;border-radius:11px;background:#fff;overflow:hidden}
.pue-money-input:focus-within,.pue-percent-input:focus-within,.pue-plain-input:focus-within{border-color:var(--pue-blue);box-shadow:0 0 0 3px rgba(18,105,173,.08)}
.pue-money-input>span,.pue-percent-input>span,.pue-plain-input>span{padding:0 13px;color:#65787f;font-size:13px;font-weight:750;background:#f7fafb;align-self:stretch;display:flex;align-items:center}
.pue-money-input>span:first-child{border-right:1px solid #e2e9ec}
.pue-percent-input>span:last-child,.pue-plain-input>span:last-child{border-left:1px solid #e2e9ec}
.pue-money-input input,.pue-percent-input input,.pue-plain-input input{width:100%;min-width:0;border:0;outline:0;padding:12px 13px;background:transparent;color:var(--pue-ink);font-size:15px;font-weight:750}
.pue-formula-note{display:grid;grid-template-columns:auto 1fr;gap:11px;margin-top:20px;padding:14px 16px;border-radius:12px;background:var(--pue-blue-soft);color:#4f6f7e;font-size:13px}
.pue-formula-note strong{color:var(--pue-blue)}
.pue-action-row{display:flex;gap:10px;margin-top:20px}
.pue-btn{min-height:46px;border-radius:11px;padding:0 16px;font-weight:850;cursor:pointer}
.pue-btn-primary{border:1px solid var(--pue-blue);background:var(--pue-blue);color:#fff}
.pue-btn-primary:hover{background:var(--pue-blue-dark)}
.pue-btn-secondary{border:1px solid var(--pue-line);background:#fff;color:#435b63}
.pue-btn-advanced{width:100%;margin-top:16px;border:1px solid #cadce5;background:#fff;color:var(--pue-blue)}

.pue-results-panel{position:sticky;top:106px}
.pue-results-head{align-items:center}
.pue-print-btn{border:1px solid var(--pue-line);border-radius:9px;background:#fff;padding:7px 11px;color:#536970;font-size:12px;font-weight:800;cursor:pointer}
.pue-primary-result{padding:23px;border:1px solid #d6eaf7;border-radius:16px;background:var(--pue-blue-soft)}
.pue-primary-result>span{display:block;color:#5c7885;font-size:13px;font-weight:750}
.pue-primary-result>strong{display:block;margin:5px 0 2px;color:var(--pue-blue);font-size:38px;line-height:1;letter-spacing:-.04em}
.pue-primary-result>small{color:#68808a}
.pue-primary-result.is-good{background:var(--pue-green-soft);border-color:#cfe9dc}
.pue-primary-result.is-good>strong{color:var(--pue-green)}
.pue-primary-result.is-warn{background:var(--pue-amber-soft);border-color:#f1dfae}
.pue-primary-result.is-warn>strong{color:var(--pue-amber)}
.pue-primary-result.is-bad{background:var(--pue-red-soft);border-color:#f2cecb}
.pue-primary-result.is-bad>strong{color:var(--pue-red)}
.pue-status-card{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-top:14px;padding:15px 17px;border:1px solid var(--pue-line);border-radius:13px}
.pue-status-card>div span,.pue-status-card-split>div span{display:block;color:#6b7e85;font-size:12px;font-weight:750}
.pue-status-card>div strong,.pue-status-card-split>div strong{display:block;margin-top:2px;font-size:22px;color:var(--pue-ink)}
.pue-status-card-split{display:grid;grid-template-columns:1fr 1fr}
.pue-status-card-split>div+div{padding-left:18px;border-left:1px solid var(--pue-line)}
.pue-status-card-split small{display:block;margin-top:2px;color:#71848b;font-size:11px}
.pue-status-chip{padding:6px 9px;border-radius:999px;background:var(--pue-green-soft);color:var(--pue-green);font-size:11px;font-weight:850}
.pue-status-chip.is-warn{background:var(--pue-amber-soft);color:var(--pue-amber)}
.pue-status-chip.is-bad{background:var(--pue-red-soft);color:var(--pue-red)}
.pue-metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.pue-metric{padding:14px;border:1px solid var(--pue-line);border-radius:12px;background:#fff}
.pue-metric span{display:block;color:#6c7e85;font-size:11px;font-weight:750}
.pue-metric strong{display:block;margin-top:4px;font-size:17px;color:#213b43}
.pue-waterfall,.pue-opportunity-box{margin-top:14px;padding:16px;border:1px solid var(--pue-line);border-radius:13px;background:#fbfdfe}
.pue-waterfall-head,.pue-opportunity-head{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:12px;font-size:12px;color:#61757c}
.pue-waterfall-head strong,.pue-opportunity-head strong{color:#344e57}
.pue-water-row{display:grid;grid-template-columns:120px 1fr auto;gap:10px;align-items:center;margin-top:9px;font-size:12px;color:#61757c}
.pue-water-row strong{color:#344e57}
.pue-water-track{height:9px;border-radius:999px;background:#edf2f4;overflow:hidden}
.pue-water-track i{display:block;height:100%;width:0;background:var(--pue-blue);border-radius:inherit}
.pue-opportunity-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.pue-opportunity-grid div{padding:10px;border:1px solid #e5edef;border-radius:10px;background:#fff}
.pue-opportunity-grid span{display:block;color:#778a91;font-size:11px}
.pue-opportunity-grid strong{display:block;margin-top:3px;color:#314b54;font-size:15px}
.pue-takeaway{margin-top:14px;padding:15px 16px;border-left:4px solid var(--pue-blue);border-radius:0 11px 11px 0;background:#f6fafc}
.pue-takeaway span{display:block;color:var(--pue-blue);font-size:11px;font-weight:850;text-transform:uppercase;letter-spacing:.06em}
.pue-takeaway p{margin:5px 0 0;color:#4e666f;font-size:13px;line-height:1.5}

.pue-wide-panel{margin-top:22px}
.pue-table-wrap{overflow-x:auto;border:1px solid #e4ebee;border-radius:12px}
.pue-table{width:100%;border-collapse:collapse;min-width:900px}
.pue-table th,.pue-table td{padding:12px 13px;border-bottom:1px solid #e8eef0;text-align:right;font-size:12px}
.pue-table th{background:#f6f9fa;color:#60747c;font-weight:850}
.pue-table th:first-child,.pue-table td:first-child{text-align:left}
.pue-table tbody tr:last-child td{border-bottom:0}
.pue-table td strong{color:#29434c}
.pue-signal{display:inline-block;padding:5px 8px;border-radius:999px;font-size:11px;font-weight:850}
.pue-signal-good{background:var(--pue-green-soft);color:var(--pue-green)}
.pue-signal-warn{background:var(--pue-amber-soft);color:var(--pue-amber)}
.pue-signal-bad{background:var(--pue-red-soft);color:var(--pue-red)}
.pue-cost-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.pue-cost-grid>div{padding:18px;border:1px solid var(--pue-line);border-radius:14px}
.pue-cost-grid span{display:block;color:#647980;font-size:12px;font-weight:800}
.pue-cost-grid strong{display:block;margin-top:7px;color:var(--pue-blue);font-size:23px}

.pue-explainer{padding:72px 0}
.pue-explainer-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px}
.pue-explainer h2{margin:7px 0 0;font-size:34px;line-height:1.12;letter-spacing:-.035em}
.pue-explainer-copy p{margin:0 0 14px;color:#5d727a}
.pue-mini-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}
.pue-mini-cards>div{padding:18px;border:1px solid var(--pue-line);border-radius:14px}
.pue-mini-cards strong{display:block;margin-bottom:5px;color:#29434c}
.pue-mini-cards span{display:block;color:#6a7d84;font-size:13px}

@media(max-width:1080px){
  .pue-field-row-4{grid-template-columns:1fr 1fr}
}
@media(max-width:980px){
  .pue-hero-row{grid-template-columns:1fr}
  .pue-mode-switch{width:min(100%,520px)}
  .pue-tool-grid{grid-template-columns:1fr}
  .pue-results-panel{position:static}
}
@media(max-width:760px){
  .pue-field-row-2,.pue-field-row-3,.pue-field-row-4,.pue-metric-grid,.pue-status-card-split,.pue-opportunity-grid,.pue-cost-grid,.pue-explainer-grid,.pue-mini-cards{grid-template-columns:1fr}
  .pue-mode-switch{width:100%}
  .pue-panel{padding:20px}
  .pue-status-card-split>div+div{padding-left:0;padding-top:12px;border-left:0;border-top:1px solid var(--pue-line)}
  .pue-action-row{flex-direction:column}
  .pue-btn{width:100%}
}
@media(max-width:430px){
  .pue-mode-switch{grid-template-columns:1fr}
  .pue-water-row{grid-template-columns:95px 1fr}
  .pue-water-row strong{grid-column:2;text-align:right}
}
@media print{
  .site-header,.footer,.pue-mode-switch,.pue-input-panel,.pue-print-btn,.pue-btn-advanced,.pue-explainer{display:none!important}
  .pue-tool-section{padding:0;background:#fff}
  .pue-results-panel,.pue-wide-panel{box-shadow:none;border:1px solid #ccc}
  .pue-tool-grid{display:block}
}