@charset "UTF-8";
:root{color-scheme:light;--green:#115d4f;--deep:#113c34;--lime:#d8ef9b;--ink:#173d34;--muted:#64756e;--line:#dce4dc;--paper:#f4f6f0;--cream:#fafbf7;--amber:#855a13;--red:#923e32;--radius:20px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #8eb67c;outline-offset:4px}button:disabled{cursor:default;opacity:.6}[hidden]{display:none!important}.rhh-app{max-width:1240px;margin:auto;padding:0 48px}.site-header{height:112px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.wordmark{display:flex;gap:11px;align-items:center;text-decoration:none;color:var(--green);font-size:12px;font-weight:680;letter-spacing:.065em;line-height:1.35}.wordmark b{font-size:14px;font-weight:850;letter-spacing:.025em}.brand-mark{width:43px;height:43px}.header-link{font-size:14px;font-weight:600;text-decoration:none}.header-link span{margin-left:10px}.intro{padding:49px 0 38px}.eyebrow{display:flex;align-items:center;gap:8px;font-size:10px;font-weight:800;letter-spacing:.15em;color:var(--green)}.eyebrow>span{height:7px;width:7px;background:var(--green);border-radius:50%}h1{font-size:clamp(36px,4.4vw,57px);font-weight:790;letter-spacing:-.047em;line-height:1.07;margin:18px 0 17px;max-width:900px}h1>span{color:var(--green);box-shadow:inset 0 -8px 0 var(--lime)}.intro>p{font-size:16px;line-height:1.6;max-width:610px;color:#52675e;margin:0}.intro-bottom{display:flex;gap:14px;align-items:center;margin-top:23px;font-size:12px;color:var(--muted)}.small-pill{font-size:10px;font-weight:750;color:var(--green);border:1px solid #bacfbd;padding:5px 9px;border-radius:30px;background:#edf4e7}.calculator-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px;align-items:start}.form-card,.result-card{border:1px solid var(--line);border-radius:var(--radius);background:white;box-shadow:0 6px 22px #173d3404;overflow:hidden}.form-card{padding:27px 29px}.card-heading{display:flex;gap:12px;align-items:flex-start;margin-bottom:28px}.card-heading h2{font-size:18px;letter-spacing:-.025em;margin:0 0 5px;font-weight:750}.card-heading p{font-size:12px;line-height:1.5;color:var(--muted);margin:0}.step-dot{display:grid;place-items:center;flex-shrink:0;width:27px;height:27px;border-radius:50%;background:var(--green);color:white;font-weight:700;font-size:11px}.step-dot.outline{background:#e8f0e1;color:var(--green);border:1px solid #cdd9c5}fieldset{margin:0;padding:0;border:0;min-width:0}legend{padding:0;margin-bottom:17px;font-size:10px;font-weight:800;letter-spacing:.11em;text-transform:uppercase;color:var(--green)}.field{margin-bottom:18px}label{display:block;font-size:12px;font-weight:700;line-height:1.5;margin-bottom:8px}.label-detail{display:block;font-size:10px;font-weight:400;color:var(--muted);margin-top:2px}input,select{height:48px;border:1px solid #ccd7cc;border-radius:8px;background:var(--cream);color:var(--ink);width:100%;padding:0 12px;font-size:13px;transition:border-color .15s,box-shadow .15s}select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='m1 1 5 5 5-5' fill='none' stroke='%233d5a4c' stroke-width='1.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:35px;text-overflow:ellipsis}select:disabled{color:#97a398;background-color:#f5f6f2}input:hover,select:not(:disabled):hover{border-color:#81a58c}input:focus,select:focus{border-color:var(--green);box-shadow:0 0 0 3px #115d4f0c}input::placeholder{color:#98a29a}input[aria-invalid=true],select[aria-invalid=true]{border-color:var(--red)}.field-help{font-size:10px;line-height:1.5;margin:7px 0 0;color:var(--muted)}.input-unit{position:relative}.input-unit input{padding-right:42px}.input-unit>span{position:absolute;right:13px;top:14px;font-size:12px;color:var(--muted);pointer-events:none}input[type=number]{-moz-appearance:textfield}input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.model-info{margin:-4px 0 19px;padding:11px 13px;background:#eef3ec;border:1px solid #dde7d7;border-radius:8px;font-size:10px;line-height:1.6;color:var(--muted)}.model-info b{display:block;font-size:11px;color:var(--green);overflow-wrap:anywhere}.model-info .data-status{display:block;margin-top:4px;font-size:10px}.model-info a{text-underline-offset:2px;color:var(--green)}.design-fields{border-top:1px solid var(--line);margin-top:5px;padding-top:23px}.design-fields legend{float:left;width:100%;margin-bottom:17px}.design-fields legend+.field{clear:both}.temperature-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.temperature-grid .field{margin-bottom:10px}.temperature-help{font-size:10px;color:var(--muted);line-height:1.6;margin-bottom:22px}.temperature-help p{margin:3px 0}.temperature-help b{font-weight:650;color:#4c6658}.primary-button{width:100%;height:50px;border:0;background:var(--green);color:white;border-radius:9px;display:flex;justify-content:space-between;align-items:center;padding:0 17px;font-weight:700;font-size:13px;transition:background .15s}.primary-button:hover{background:#0e4b40}.primary-button svg{width:20px;height:20px}.form-footer{display:flex;justify-content:space-between;align-items:center;margin-top:13px}.text-button{padding:4px 0;background:none;border:0;font-size:10px;color:var(--green);text-decoration:underline;text-underline-offset:3px}.text-button.quiet{color:#7b8b80;text-decoration:none}.form-errors{padding:12px;border-radius:8px;background:#fff0e9;color:var(--red);font-size:12px;line-height:1.5;margin-bottom:14px}.result-card{position:sticky;top:20px;background:#fbfcf8;min-height:510px;padding:27px 29px 0}.empty-result{padding:24px 12px 33px;text-align:center}.comparison-icon{width:90px;margin:0 auto 23px;color:#75957b;background:#edf2e5;padding:10px;border-radius:18px}.comparison-icon svg{display:block;width:100%;height:auto}.empty-result h3{font-size:23px;font-weight:720;letter-spacing:-.03em;margin:0 0 12px}.empty-result>p{font-size:13px;line-height:1.8;margin:0 auto;color:var(--muted);max-width:320px}.empty-preview{padding:25px 10px 0;text-align:left;font-size:10px;color:#829282;max-width:280px;margin:auto}.empty-preview span{display:block;margin-bottom:14px}.empty-preview i{display:block;height:7px;margin-top:7px;border-radius:4px;background:#e2e9d9;width:92%}.empty-preview span+span i{width:69%;background:#cadbb9}.result-footnote{display:flex;align-items:flex-start;gap:8px;border-top:1px solid var(--line);padding:18px 0 20px;margin-top:5px}.result-footnote svg{width:17px;flex:0 0 17px;margin-top:1px;color:#6f8973}.result-footnote p{font-size:10px;line-height:1.6;color:var(--muted);margin:0}.result-model{font-size:13px;font-weight:750;line-height:1.5;margin:0 0 7px}.result-conditions{font-size:11px;color:var(--muted);margin:0 0 19px}.status-pill{display:inline-flex;align-items:center;gap:6px;font-size:9px;text-transform:uppercase;letter-spacing:.06em;font-weight:750;padding:6px 9px;border-radius:5px;background:#e9f2df;color:var(--green);margin-bottom:14px}.status-pill:before{content:"";display:block;width:5px;height:5px;background:currentColor;border-radius:50%}.status-pill.warning{background:#fff0d7;color:var(--amber)}.status-pill.unavailable{background:#eeeeda;color:#7e7144}.result-main{border-radius:12px;background:#eaf2df;padding:21px 21px 19px;margin-bottom:18px}.result-main.warning{background:#fff4df}.result-main .metric-label{display:block;color:#57704d;font-size:10px;line-height:1.5}.result-main.warning .metric-label{color:#8f7241}.result-main .big-number{font-size:51px;line-height:1.2;font-weight:760;letter-spacing:-.05em;display:block;color:var(--deep)}.big-number small{font-size:17px;letter-spacing:0;font-weight:600;margin-left:5px}.result-main .method-label{display:block;margin-top:5px;font-size:10px;line-height:1.5;color:var(--muted)}.metric-pair{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:18px 0 24px}.metric-pair>div{border-bottom:1px solid var(--line);padding-bottom:13px}.metric-pair .metric-label{display:block;font-size:10px;color:var(--muted);margin-bottom:6px}.metric-pair .number{font-size:25px;font-weight:700;letter-spacing:-.04em}.number small{font-size:11px;font-weight:500;letter-spacing:0}.number.negative{color:var(--red)}.bar-chart{margin:8px 0 22px}.bar-row{margin-bottom:14px}.bar-caption{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-bottom:6px}.bar-caption b{color:var(--ink);font-weight:650}.bar-track{height:9px;background:#e7ecdf;border-radius:6px;overflow:hidden}.bar-fill{height:100%;border-radius:6px;background:var(--green);min-width:2px}.bar-row.loss .bar-fill{background:#b1ca7e}.result-explanation{font-size:12px;line-height:1.8;margin:0 0 18px;color:#405e4d}.result-note{font-size:10px;line-height:1.7;padding:12px 14px;border-left:3px solid #d4ae60;background:#fff7e8;color:#735b2f;margin:0 0 16px}.result-note b{display:block;margin-bottom:3px}.result-note.cool{background:#eef3e6;border-color:#9bb67e;color:#53664a}.source-details{border-top:1px solid var(--line);padding:13px 0;font-size:10px}.source-details summary{font-size:11px;font-weight:650;cursor:pointer}.source-details p{line-height:1.7;color:var(--muted);margin:10px 0}.source-details a{color:var(--green);overflow-wrap:anywhere}.source-details table{border-collapse:collapse;width:100%;font-size:9px;margin:10px 0}.source-details th,.source-details td{padding:5px 4px;border-bottom:1px solid var(--line);text-align:left}.source-details th{font-weight:650}.result-actions{display:flex;gap:9px;flex-wrap:wrap;margin:12px 0 19px}.secondary-button{border:1px solid #cbd9c1;color:var(--green);background:transparent;border-radius:6px;padding:8px 11px;font-size:10px;font-weight:600}.secondary-button:hover{background:#edf3e4}.action-feedback{display:block;min-height:15px;font-size:10px;color:var(--green);margin:0 0 10px}.stale-message{padding:10px 12px;background:#fff3d8;color:#805c1e;font-size:11px;line-height:1.5;border-radius:7px;margin:0 0 15px}.unavailable-panel{border:1px dashed #c7d4bb;background:#f0f4e9;padding:22px;border-radius:12px;margin:8px 0 20px}.unavailable-panel h3{font-size:20px;line-height:1.3;letter-spacing:-.03em;margin:0 0 12px}.unavailable-panel p{font-size:12px;line-height:1.8;color:var(--muted);margin:10px 0}.condition-chips{display:flex;flex-wrap:wrap;gap:5px;margin:12px 0}.condition-chip{background:white;border:1px solid #d5dfcc;color:#51674a;padding:5px 7px;border-radius:5px;font-size:9px}.explainer{display:grid;grid-template-columns:1fr 1fr;gap:45px;margin-top:58px;padding:35px 0;border-top:1px solid var(--line)}.explainer h2{font-size:29px;font-weight:750;letter-spacing:-.035em;margin:14px 0}.explainer>div>p{font-size:13px;line-height:1.9;color:var(--muted);max-width:415px}.explainer-details details{border-bottom:1px solid var(--line);padding:15px 0}.explainer-details details:first-child{padding-top:0}.explainer-details summary{font-size:12px;font-weight:650;cursor:pointer;list-style:none;position:relative;padding-right:25px;line-height:1.7}.explainer-details summary:after{content:"+";position:absolute;right:1px;font-weight:400;font-size:20px;top:-5px;color:#728a6a}.explainer-details details[open] summary:after{content:"−"}.explainer-details p{font-size:11px;line-height:1.8;color:var(--muted);margin-bottom:0}.coverage-section{margin:0 0 34px}.coverage-section>details{border:1px solid var(--line);background:#fafbf6;border-radius:11px}.coverage-section>details>summary{padding:18px 20px;display:flex;justify-content:space-between;align-items:center;gap:12px;cursor:pointer;list-style:none;font-size:12px;font-weight:650}.coverage-section>details>summary>span+span{font-size:10px;color:var(--muted);font-weight:400}.coverage-body{padding:0 20px 20px}.coverage-body>p{font-size:11px;line-height:1.7;color:var(--muted)}.coverage-table{width:100%;border-collapse:collapse;font-size:11px}.coverage-table th,.coverage-table td{text-align:left;border-bottom:1px solid var(--line);padding:9px 8px;vertical-align:top}.coverage-table thead th{color:var(--muted);font-size:9px;letter-spacing:.03em;text-transform:uppercase}.coverage-table .coverage-tag{font-size:9px;color:var(--muted)}.coverage-table a{color:var(--green);text-underline-offset:2px}.small-note{font-size:10px!important}.site-footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:23px 0 33px;color:var(--muted);font-size:10px}.site-footer>span:first-child{font-weight:700;color:var(--green)}
@media(min-width:1400px){.rhh-app{max-width:1280px;padding:0 60px}.intro{padding-top:54px}.form-card,.result-card{padding-left:33px;padding-right:33px}}
@media(max-width:850px){.rhh-app{padding:0 24px}.calculator-grid{gap:16px}.form-card,.result-card{padding-left:21px;padding-right:21px}.explainer{gap:25px}h1{font-size:46px}.site-header{height:93px}.intro{padding-top:36px}}
@media(max-width:650px){.rhh-app{padding:0 18px}.site-header{height:80px}.wordmark{font-size:9px;gap:7px}.wordmark b{font-size:11px}.brand-mark{width:34px;height:34px}.header-link{font-size:11px}.intro{padding:31px 0 27px}h1{font-size:39px;letter-spacing:-.05em;line-height:1.09;margin-top:16px}.intro>p{font-size:14px;line-height:1.7}.intro-bottom{font-size:10px;gap:10px}.calculator-grid{grid-template-columns:1fr;gap:18px}.form-card,.result-card{padding:23px 21px;border-radius:16px}.result-card{position:static;padding-bottom:0}.empty-result{padding-top:10px;padding-bottom:27px}.empty-preview{padding-top:18px}.card-heading{margin-bottom:24px}.result-card .card-heading{margin-bottom:20px}.explainer{grid-template-columns:1fr;gap:19px;margin-top:32px;padding-top:29px}.explainer h2{font-size:28px}.coverage-body{padding-left:12px;padding-right:12px}.coverage-table{font-size:10px}.coverage-table th,.coverage-table td{padding:8px 4px}.coverage-section>details>summary{padding:16px 13px}.coverage-section>details>summary>span+span{font-size:9px}.site-footer{font-size:9px;line-height:1.5}.site-footer>span+span{max-width:145px;text-align:right}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{body{background:white}.rhh-app{max-width:none;padding:0}.site-header{height:70px}.header-link,.form-card,.explainer,.coverage-section,.result-actions,.result-footnote,.intro-bottom,.site-footer{display:none}.intro{padding:20px 0}.intro h1{font-size:32px}.intro>p{font-size:12px}.calculator-grid{display:block}.result-card{position:static;border:1px solid #ccc;border-radius:0;background:white;box-shadow:none;padding:20px;break-inside:avoid}.source-details{display:block}.source-details>div{display:block}.result-main{-webkit-print-color-adjust:exact;print-color-adjust:exact}}

.result-verdict{font-size:21px;line-height:1.3;letter-spacing:-.025em;margin:22px 0 12px;color:var(--green)}.result-verdict.below{color:var(--red)}.result-verdict.close,.result-verdict.uncertain,.result-verdict.reference{color:var(--amber)}.coverage-alert{display:block;margin-top:9px;font-size:11px;line-height:1.7;color:#6e572d}.known-points{width:100%;border-collapse:collapse;font-size:11px;margin:14px 0}.known-points caption{text-align:left;font-weight:700;line-height:1.5;margin:0 0 9px}.known-points th,.known-points td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line)}
.model-reference{border-top:1px solid #ced9c4;border-bottom:1px solid #ced9c4;margin:12px 0;padding:12px 0}.model-reference h3{font-size:13px;line-height:1.4;margin:0 0 10px;letter-spacing:-.01em}.model-reference p{font-size:11px;line-height:1.75;margin:8px 0;color:var(--muted)}.model-reference p b{display:inline;color:var(--ink)}.reference-table{border-collapse:collapse;width:100%;margin:13px 0 4px;font-size:11px}.reference-table caption{text-align:left;font-size:10px;line-height:1.6;color:var(--muted);padding-bottom:8px}.reference-table th,.reference-table td{padding:8px 5px;border-bottom:1px solid #d5dece;text-align:left;vertical-align:top;line-height:1.65}.reference-table th{font-size:10px;color:var(--muted)}.reference-table td:first-child{width:29%}.reference-table td b{display:inline}.reference-table small{display:block;font-size:10px;color:var(--muted);line-height:1.6;margin:4px 0}.reference-table a{display:block;font-size:10px}.reference-gap{padding:9px 10px;background:#fff4df;border-radius:5px}.data-gap{border-left:3px solid #c5a25c;padding-left:12px;margin:14px 0}.data-gap>b{display:block;font-size:12px}.data-gap p{margin-top:5px}
