:root{--ink:#18372c;--green:#163d30;--lime:#d3ef91;--paper:#f5f7f4;--line:#dce3dd;--muted:#596b62;--orange:#c75b2d}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 Arial,Helvetica,sans-serif}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select{outline-offset:4px}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}header{padding:22px max(4%,calc((100% - 1360px)/2));display:flex;align-items:center;justify-content:space-between;gap:25px;border-bottom:1px solid var(--line);background:#fff}.brand{font:bold 30px/1.1 Georgia,serif;letter-spacing:-1.5px;text-decoration:none;white-space:nowrap}.brand span{color:var(--orange)}.brandmark{margin-left:9px}nav{display:flex;gap:26px;flex-wrap:wrap}nav a{text-decoration:none;font-size:14px;font-weight:600}nav a:hover{text-decoration:underline;color:var(--orange)}main{max-width:1360px;margin:auto;padding:36px 4%}.intro{padding:5px 0 28px}.eyebrow{font-size:12px;font-weight:bold;letter-spacing:2px}.eyebrow span{color:#7b8a80;margin-left:12px}h1{font:clamp(32px,4vw,52px)/1.12 Georgia,serif;letter-spacing:-1.5px;margin:15px 0}h2{font-size:22px;line-height:1.3;margin:0 0 16px;letter-spacing:-.4px}h3{font-size:21px;line-height:1.3}p{margin:12px 0;color:var(--muted)}.intro p{font-size:18px;max-width:780px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:28px;align-items:start}.card{padding:28px;background:white;border:1px solid var(--line);border-radius:12px;margin-bottom:22px}.sectionhead{display:flex;justify-content:space-between;align-items:center;gap:15px;flex-wrap:wrap}.sectionhead h2{margin:0}.sectionhead h2 span{font-size:13px;border:1px solid var(--line);padding:7px;border-radius:50%;vertical-align:3px;margin-right:10px}.units{display:flex;gap:8px;align-items:center!important;font-size:13px!important}.units select{width:auto;padding:8px;font-size:13px}.muted{font-size:14px;margin:15px 0 22px}.fieldgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.areagrid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}label{font-size:14px;font-weight:600;display:block}input,select{width:100%;min-width:0;background:#fff;color:var(--ink);border:1px solid #bac9bf;border-radius:6px;padding:11px 12px;min-height:46px;margin-top:7px}input:focus,select:focus{border-color:var(--green);outline:2px solid #a9c693}input:invalid{border-color:#ba5037}.inputwrap{display:flex;align-items:center;border:1px solid #bac9bf;border-radius:6px;margin-top:7px;background:#fff}.inputwrap input{border:0;margin:0;background:transparent;width:100%;min-width:0}.inputwrap span{padding-right:10px;white-space:nowrap;color:var(--muted);font-size:13px;font-weight:400}.area{background:#f6f8f5;border:1px solid #e2e8df;padding:18px;border-radius:8px;margin-bottom:16px}.areahead{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:14px}.areahead strong{font-size:14px}.areahead select{max-width:155px;margin:0;min-height:35px;padding:5px;font-size:14px}.textbutton{border:0;background:transparent;text-decoration:underline;color:#9c3a1e;font-size:13px;padding:5px}.settings{border-top:1px solid var(--line);margin-top:22px;padding-top:22px}.small{font-size:13px;line-height:1.5}.tag{font-size:11px;letter-spacing:1px;color:var(--muted)}.outline,.primary{border:1px solid #b3c2b7;border-radius:6px;padding:12px 18px;font-weight:600;font-size:14px;background:white;color:var(--ink)}.outline:hover{background:#eef3e9}.primary{background:var(--green);color:#fff;border-color:var(--green)}.primary:hover{background:#235740}.inline{display:inline-block;text-decoration:none}.results{position:sticky;top:22px}.resultcard{background:var(--green);color:white;border-radius:12px;padding:28px}.resultcard .eyebrow{color:var(--lime);font-size:11px}.resultcard p{color:#d0dfd4}.quantity{font:64px/1 Georgia,serif;letter-spacing:-2px;margin-top:22px}.quantity small{font:17px Arial,sans-serif;letter-spacing:0}.metrics{display:flex;gap:18px;padding:16px 0;border-bottom:1px solid #476454}.metrics strong{display:block;font-size:22px}.metrics span{color:#c9d9cf;font-size:12px}.costs{margin-top:22px}.costrow{display:flex;justify-content:space-between;border-bottom:1px solid #476454;padding:12px 0;gap:12px}.costrow span{font-size:14px}.costrow small{display:block;color:#c9d9cf;font-size:12px}.winner{background:var(--lime);color:var(--ink);padding:14px;margin-top:18px;border-radius:6px;font-size:14px}.ordercard{background:white;border:1px solid var(--line);border-radius:12px;padding:24px;margin-top:18px}.ordercard h2{font-size:19px}.ordercard>button{width:100%;margin-bottom:9px}.saveditem{border-top:1px solid var(--line);padding:12px 0;font-size:14px}.saveditem p{font-size:13px}.learnnav{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid #bccbbe;border-bottom:1px solid #bccbbe;padding:22px 0;margin:24px 0 40px;font-size:14px}.learnnav span{font-size:11px;letter-spacing:1.5px}.reading{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:70px}.article{margin-bottom:32px}.article h2{font:29px/1.2 Georgia,serif}.article p{max-width:760px}.formula{padding:18px;background:#e8efdf;border-left:3px solid #476a3d;font-size:16px}.readingaside{border-left:1px solid var(--line);padding-left:25px}.readingaside img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;border-radius:8px}.readingaside a{display:block;padding:8px 0;font-size:14px}.readingaside p{font-size:14px}details{border-bottom:1px solid var(--line);padding:17px 0}summary{font-weight:600;cursor:pointer;font-size:16px}details p{font-size:15px}footer{background:#e8eee7;border-top:1px solid var(--line);padding:40px max(4%,calc((100% - 1250px)/2));display:grid;grid-template-columns:1fr 1fr;gap:20px}footer p{font-size:14px}footer small{grid-column:1/-1;font-size:12px}.footerlinks{display:grid;grid-template-columns:1fr 1fr;gap:12px;font-size:14px}.document{max-width:930px;min-height:65vh;padding-top:55px;padding-bottom:55px}.document h1{margin-bottom:28px}.document h2{margin-top:28px}.guidecards{display:grid;grid-template-columns:1fr 1fr;gap:20px}.guidecards>a{padding:28px;border:1px solid var(--line);background:white;border-radius:8px;text-decoration:none}.guidecards span{font-size:12px;letter-spacing:1px}.guidecards h2{font:30px Georgia,serif}.skip{position:absolute;left:10px;top:-80px;background:white;padding:12px;z-index:100}.skip:focus{top:10px}#status{font-size:13px}#result .error{color:#ffcbaf}.printonly{display:none}@media(max-width:1050px){header{align-items:flex-start;flex-direction:column;gap:20px}.workspace{grid-template-columns:minmax(0,1fr) 310px;gap:18px}.card{padding:20px}.areagrid{grid-template-columns:1fr 1fr}.reading{gap:28px;grid-template-columns:minmax(0,1fr) 240px}.quantity{font-size:54px}.resultcard{padding:22px}}@media(max-width:760px){header{padding:20px 5%}nav{gap:14px 22px}.workspace,.reading{display:block}main{padding:28px 5%}.results{position:static}.intro p{font-size:16px}.learnnav{flex-wrap:wrap}.learnnav span{width:100%}.readingaside{padding:20px 0;border-left:0;border-top:1px solid var(--line)}.readingaside img{max-width:300px}.guidecards{grid-template-columns:1fr}footer{grid-template-columns:1fr}.quantity{font-size:64px}.fieldgrid,.areagrid{gap:12px}.area{padding:14px}.sectionhead{align-items:flex-start}.units{margin-top:8px}.areahead{flex-wrap:wrap}.footerlinks{margin-bottom:10px}}@media print{header,footer,.learnnav,.reading,.ordercard>button,.textbutton,#addarea,.skip{display:none!important}body{background:white;color:black}.workspace{display:block}.results{position:static}.resultcard{background:#fff;color:#000;border:1px solid #999;break-inside:avoid}.resultcard p,.resultcard small,.resultcard .eyebrow,.metrics span{color:#333}.card{break-inside:avoid}.intro{padding:0}.quantity{font-size:40px}.winner{border:1px solid #999}.inputwrap input{padding:3px}input,select{min-height:25px}.printonly{display:block}}

.area-total{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;background:#e8efdf;border:1px solid #cad8be;border-radius:8px;padding:16px 18px;margin:0 0 18px}.area-total span{font-size:14px;font-weight:600}.area-total strong{font-size:24px;line-height:1.3}
.theme-toggle{background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:9px 12px;min-height:44px;white-space:nowrap;font-size:14px;font-weight:600}.theme-toggle:hover{background:var(--paper)}
@media screen{html[data-theme="dark"]{--ink:#edf4ee;--green:#284e3d;--lime:#d3ef91;--paper:#101b17;--line:#3c5145;--muted:#b7c9bd;--orange:#efaa7a}html[data-theme="dark"] header,html[data-theme="dark"] .card,html[data-theme="dark"] .ordercard,html[data-theme="dark"] .guidecards>a,html[data-theme="dark"] .skip{background:#18271f}html[data-theme="dark"] .area{background:#132119;border-color:var(--line)}html[data-theme="dark"] input,html[data-theme="dark"] select,html[data-theme="dark"] .inputwrap{background:#101d16;color:var(--ink);border-color:#61796a}html[data-theme="dark"] .inputwrap input{background:transparent}html[data-theme="dark"] .outline{background:#1e3226;color:var(--ink);border-color:#61796a}html[data-theme="dark"] .outline:hover{background:#304837}html[data-theme="dark"] .formula,html[data-theme="dark"] .area-total{background:#263d2a;border-color:#526d46}html[data-theme="dark"] footer{background:#17271d}html[data-theme="dark"] .winner{color:#18372c}html[data-theme="dark"] .textbutton{color:#ffb797}html[data-theme="dark"] .resultcard{background:#1d3d2f}html[data-theme="dark"] .primary{background:#cce990;border-color:#cce990;color:#173323}html[data-theme="dark"] .primary:hover{background:#ddf3b5}html[data-theme="dark"] input:invalid{border-color:#f4977e}}
@media print{.theme-toggle{display:none!important}html{color-scheme:light!important}}
.brand{display:inline-flex;align-items:center}.brand-logo{flex:0 0 40px;width:40px;height:40px;margin-right:10px;vertical-align:middle}.brand span{display:inline}header .brand{font-size:28px}

/* Natural mobile order: measurements, estimate, pricing, shopping list. */
.workspace{grid-template-areas:"measure estimate" "pricing shopping";row-gap:22px}
.workspace>.measurements{grid-area:measure;margin-bottom:0}
.workspace>.resultcard{grid-area:estimate}
.workspace>.pricing{grid-area:pricing;margin-bottom:0}
.workspace>.ordercard{grid-area:shopping;margin-top:0}
@media(max-width:760px){
 header{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:10px;padding:12px 5%}
 header .brand{font-size:25px;letter-spacing:-1px}
 header .brand-logo{width:32px;height:32px;flex-basis:32px;margin-right:6px}
 header .theme-toggle{font-size:13px;padding:8px;grid-column:2;grid-row:1}
 header nav{grid-column:1/-1;gap:0 18px}
 header nav a{display:inline-flex;align-items:center;min-height:44px}
 main{padding-top:20px}
 .intro{padding:0 0 18px}
 .intro h1{font-size:30px;margin:0 0 10px;letter-spacing:-.7px}
 .intro p{margin:0;font-size:16px;line-height:1.5}
 .workspace{display:flex;flex-direction:column;gap:18px}
 .workspace>section{width:100%;min-width:0}
 .card{padding:18px}
 .measurements>.muted{margin:12px 0}
 .quantity,.metrics,.costrow{overflow-wrap:anywhere}
}
@media(max-width:360px){header .brand{font-size:22px}.fieldgrid,.areagrid{grid-template-columns:minmax(0,1fr)}}

.inputwrap input:placeholder-shown{border:0}input::placeholder{color:var(--muted);opacity:.75}.site-info-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.site-info-grid a{display:block;border:1px solid var(--line);border-radius:8px;padding:18px;text-decoration:none;background:#fff}.site-info-grid a:hover{border-color:#8aa18f;background:#eef3e9}.site-info-grid strong,.site-info-grid span{display:block}.site-info-grid span{color:var(--muted);font-size:14px;margin-top:5px}@media screen{html[data-theme="dark"] .site-info-grid a{background:#18271f}html[data-theme="dark"] .site-info-grid a:hover{background:#304837}}@media(max-width:520px){.site-info-grid{grid-template-columns:1fr}}