@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--red:#c8001c;--ink:#202c35;--muted:#65727b;--line:#dde3e5;--wash:#f3f5f5;--navy:#20333d}*{box-sizing:border-box}body{margin:0;background:var(--wash);color:var(--ink);font:15px/1.55 'DM Sans',Arial,sans-serif}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:inherit}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #e8929e;outline-offset:4px}input:focus,select:focus{outline:2px solid #d77b88;outline-offset:1px}header{background:white;border-bottom:1px solid var(--line)}.header-inner{max-width:1240px;margin:auto;padding:19px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px}.header-inner img{display:block;width:260px;height:auto;max-height:88px;object-fit:contain;object-position:left center}.header-contact{display:flex;flex-direction:column;text-align:right}.header-contact span{font-size:10px;letter-spacing:1.5px;color:var(--muted)}.header-contact a{font:800 23px Manrope,Arial,sans-serif;text-decoration:none}.shell{max-width:1240px;margin:auto;padding:42px 28px}.intro{display:flex;justify-content:space-between;gap:30px;align-items:center;padding:0 12px 34px}.eyebrow{font-size:10px;font-weight:800;letter-spacing:1.8px;color:var(--red)}h1{font:800 clamp(34px,4.4vw,53px)/1.13 Manrope,Arial,sans-serif;letter-spacing:-2px;margin:16px 0}h1 em{font-style:normal;color:var(--red)}.intro p{max-width:540px;color:var(--muted);font-size:16px;margin-bottom:0}.intro-art{padding:0 28px;width:310px;flex-shrink:0;transform:rotate(-3deg)}.rad-body{border:3px solid #c7cfd1;background:#fff;border-radius:8px;height:138px;padding:9px;box-shadow:9px 12px 0 #e4e9e8,0 20px 20px #c8d0d023;position:relative}.rad-body:after,.rad-body:before{content:'';position:absolute;background:#c0cace;width:8px;height:15px;bottom:-16px}.rad-body:after{right:13px}.rad-body:before{left:13px}.rad-fins{height:100%;border-top:5px solid #b9c3c6;background:repeating-linear-gradient(90deg,#fafcfc 0px,#fafcfc 9px,#d9dfe0 10px,#f1f4f4 12px);border-radius:3px}.art-caption{text-align:center;font:700 9px Manrope,sans-serif;letter-spacing:2px;margin-top:28px;color:#708187}.workspace{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:26px;align-items:start}.mode-tabs{display:flex;gap:4px;background:#e6ebeb;border-radius:12px;padding:5px;margin-bottom:18px}.mode-tabs button{border:0;background:none;color:#627078;flex:1;padding:13px 8px;font-weight:700;border-radius:8px}.mode-tabs button[aria-selected=true]{background:#fff;color:var(--red);box-shadow:0 2px 6px #20333d12}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;margin-bottom:18px}.step-heading{display:flex;align-items:flex-start;gap:13px;margin-bottom:21px}.step-heading>b{font:800 12px Manrope,sans-serif;padding:7px 9px;background:#fff0f2;color:var(--red);border-radius:7px}h2{font:800 21px/1.3 Manrope,Arial,sans-serif;letter-spacing:-.5px;margin:0}h3{font:800 18px/1.3 Manrope,sans-serif;margin:12px 0 6px}.step-heading p{font-size:12px;margin:4px 0 0;color:var(--muted)}.grid{display:grid;gap:16px;margin-bottom:18px}.two{grid-template-columns:repeat(2,minmax(0,1fr))}.three{grid-template-columns:repeat(3,minmax(0,1fr))}.field{display:flex;flex-direction:column;gap:7px;min-width:0}.field>span{font-size:12px;font-weight:700}.field small{font-weight:400;color:var(--muted);font-size:10px;line-height:1.45}.field span small{display:inline;font-size:10px}.field input,.field select{width:100%;background:#fcfdfd;border:1px solid #ccd5d9;border-radius:7px;padding:11px 10px;color:#263741;min-height:45px;min-width:0}.field input:disabled,.field select:disabled{background:#f0f3f4;color:#6c7880}.input-wrap{position:relative}.input-wrap:has(i) input{padding-right:37px}.input-wrap i{font-size:10px;font-style:normal;position:absolute;right:10px;top:16px;color:var(--muted);pointer-events:none}.input-wrap:has(i) input[id$="-u"]{padding-right:53px}.section-label{font-weight:700;font-size:13px;margin:21px 0 5px}.hint{font-size:12px;line-height:1.65;color:var(--muted);margin:8px 0 15px}.wall-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;background:#f4f6f6;border-radius:9px;padding:15px;margin-bottom:18px}.wall-grid select{font-size:12px}details summary{font-size:13px;font-weight:700;cursor:pointer;list-style-position:inside}details[open] summary{margin-bottom:17px}.assumptions{border-top:1px solid var(--line);padding-top:16px}.assumptions .three{grid-template-columns:repeat(2,minmax(0,1fr))}.info-note{font-size:12px;padding:11px 13px;background:#edf3f5;border-radius:8px;color:#3c5b6b;margin-bottom:0}.primary,.secondary{border:1px solid var(--red);border-radius:8px;padding:12px 15px;font-size:12px;font-weight:700;text-align:center;display:inline-flex;justify-content:center;align-items:center;gap:12px;text-decoration:none;min-height:45px}.primary{background:var(--red);color:#fff}.primary:hover{background:#a90018}.secondary{background:#fff;color:var(--ink);border-color:#ccd5d9}.secondary:hover{border-color:var(--red);color:var(--red)}.calculate{width:100%;font-size:14px;justify-content:space-between}.calculate span{font-size:21px}.output-card{padding:28px;background:var(--navy);border-radius:14px;color:#fff;margin-bottom:26px;position:relative;overflow:hidden}.output-card:after{content:'';position:absolute;width:130px;height:130px;border:1px solid #ffffff0d;border-radius:50%;right:-35px;top:-45px;box-shadow:0 0 0 25px #ffffff03,0 0 0 50px #ffffff02}.output-card .eyebrow{color:#f3acb6}.load{font:800 52px/1.2 Manrope,sans-serif;letter-spacing:-2px;margin:15px 0 4px}.load span{font-size:24px;letter-spacing:0;color:#afbdc5}.btu{color:#bdcbd2;font-size:14px}.output-rule{height:1px;background:#ffffff22;margin:23px 0 18px}.output-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.output-grid small{display:block;color:#b6c4cb;font-size:11px;margin-bottom:5px}.output-grid b{font:700 16px Manrope,sans-serif}.output-card p{font-size:11px;color:#b6c4cb;margin:16px 0 0}.results-heading{display:flex;gap:10px;align-items:center;justify-content:space-between}.results-heading .eyebrow{margin-bottom:7px}.badge{font-size:10px;line-height:1.4;white-space:nowrap;border-radius:20px;padding:7px 11px;background:#e5ecea;color:#3c5c51;font-weight:700}.match-list{display:grid;gap:12px;margin:18px 0}.match-card{display:grid;grid-template-columns:68px 1fr;column-gap:16px;padding:20px;border:1px solid var(--line);background:#fff;border-radius:12px}.match-card.is-selected{border:2px solid var(--red);padding:19px}.mini-rad{height:60px;border:2px solid #d3dade;border-radius:4px;background:repeating-linear-gradient(90deg,#fff 0,#fff 5px,#dfe5e7 6px,#fff 8px);margin-top:7px;position:relative;box-shadow:3px 3px 0 #e7ebed}.mini-rad:before{content:'';position:absolute;left:0;right:0;top:0;height:5px;background:#d8dfe2}.match-card h3{font-size:16px;margin:4px 0}.match-kicker{font-size:9px;letter-spacing:1px;color:var(--red);font-weight:800}.match-code{font-size:11px;color:var(--muted)}.match-value{font:800 22px Manrope,sans-serif;margin-top:9px}.match-value small{font:500 11px 'DM Sans',sans-serif;color:var(--muted)}.match-bottom{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid #edf0f1;margin-top:15px;padding-top:12px}.match-bottom span{font-size:11px;color:#36735c}.match-bottom button{padding:7px 15px;min-height:35px}.match-spec{font-size:11px;color:var(--muted)}.selected-panel h3{margin-top:10px}.selected-panel p{font-size:12px;color:var(--muted)}.actions{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 9px}.actions button{flex:1}.text-button{font-size:12px;text-decoration:underline;background:none;border:0;padding:5px 0;color:var(--red)}.table-scroll{overflow-x:auto;max-height:450px}table{width:100%;font-size:11px;border-collapse:collapse}th{text-align:left;font-size:10px;color:var(--muted);position:sticky;top:0;background:#f4f6f6}td,th{padding:10px 8px;border-bottom:1px solid var(--line)}td button{font-size:11px;padding:6px 9px;border:1px solid #d4dcdf;background:#fff;border-radius:5px;color:var(--red)}td small{display:block;color:var(--muted)}.source{font-size:12px;color:var(--red)}.breakdown-line{display:flex;justify-content:space-between;font-size:12px;border-bottom:1px solid #edf0f1;padding:7px 0}.error{border:1px solid #e8acb6;background:#fff0f2;border-radius:10px;color:#93152a;padding:17px;margin-bottom:15px;font-size:13px}.empty{padding:25px;border:1px dashed #bbc9ce;border-radius:10px;font-size:13px;color:var(--muted)}.bottom-help{border-top:1px solid #d2dbde;margin-top:30px;padding:27px 10px 0;display:flex;justify-content:space-between;gap:20px;align-items:center}.bottom-help span{display:block;color:var(--muted);font-size:12px;margin-top:3px}.bottom-help a{color:var(--red);font-weight:700;font-size:14px}footer{max-width:1240px;margin:auto;padding:0 38px 30px;display:flex;gap:24px;flex-wrap:wrap;color:var(--muted);font-size:11px}.print-only{display:none}[hidden]{display:none!important}#action-status{color:#2c6651}.inputs{min-width:0}.results{min-width:0}
@media(max-width:850px){.workspace{grid-template-columns:1fr}.intro-art{width:230px;padding:10px 15px}.rad-body{height:115px}.intro{padding-left:0;padding-right:0}.results{scroll-margin-top:15px}}@media(max-width:540px){.header-inner{padding:14px 18px;gap:12px}.header-inner img{width:182px}.header-contact span{display:none}.header-contact a{font-size:14px}.shell{padding:25px 16px}.intro{padding-bottom:25px;gap:10px}.intro-art{display:none}h1{font-size:37px;letter-spacing:-1.5px}.intro p{font-size:14px}.card{padding:20px 17px;border-radius:11px}.grid{gap:13px}.three{grid-template-columns:repeat(3,minmax(0,1fr))}.field>span{font-size:11px}.field input,.field select{font-size:13px;padding:10px 8px}.input-wrap i{font-size:9px;right:8px}.wall-grid{padding:12px}.load{font-size:46px}.output-card{padding:24px}.results-heading h2{font-size:20px}.badge{font-size:9px}.match-card{padding:17px;grid-template-columns:57px 1fr}.match-card.is-selected{padding:16px}.match-value{font-size:21px}.bottom-help{align-items:start;flex-direction:column}footer{padding:0 20px 25px;gap:10px 18px}.actions{flex-direction:column}.assumptions .grid{grid-template-columns:1fr 1fr}}
@media print{@page{size:A4;margin:15mm}body{background:#fff;font:11px/1.5 Arial,sans-serif}body>header,body>main,body>footer{display:none}.print-only{display:block;color:#172b37}.print-only img{width:230px;height:auto;max-height:85px;object-fit:contain}.print-only h1{font-size:26px;letter-spacing:-.6px;margin:20px 0 5px}.print-only h2{font-size:17px;margin-top:24px}.print-only .print-hero{border-top:4px solid #c8001c;background:#f2f5f5;padding:18px;margin-top:18px}.print-only table{font-size:11px;table-layout:fixed}.print-only th{position:static}.print-only p,.print-only table{break-inside:avoid}.print-only .print-note{font-size:10px;color:#52616a;margin-top:20px}.print-only tr{break-inside:avoid}.print-only h2{break-after:avoid}}