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@media(max-width:640px){body{font-size:16px}.container{width:calc(100% - 32px)}.header-inner{min-height:75px;padding-block:12px}.brand img{width:45px;height:45px}.brand span{font-size:19px}.brand{gap:10px}.hero-inner{min-height:0;padding-top:0;padding-bottom:0;display:block}.hero-copy{width:100%;padding-block:35px 0}.hero .eyebrow{font-size:10px;letter-spacing:.09em;margin-bottom:20px}.hero h1{font-size:42px;line-height:1.06;max-width:390px;margin-bottom:20px}.hero p{font-size:17px;line-height:1.6;max-width:310px;margin-bottom:24px}.hero-actions{flex-direction:row;align-items:center;gap:20px}.hero-actions .button{font-size:13px;padding:12px 17px;min-height:46px}.hero-actions .text-link{font-size:12px}.hero-art{position:relative;inset:auto;width:100%;height:auto;aspect-ratio:1.65;margin-top:10px;order:2}.hero{display:flex;flex-direction:column}.hero-art{order:2}.hero-inner{order:1}.hero-art img{object-fit:cover;object-position:center right;width:100%;height:100%}.hero-art:after{background:linear-gradient(180deg,#eff8fc 0%,transparent 35%)}.topic-bar>.container{padding-block:20px;width:100%;gap:0}.topic-bar a{font-size:12px;gap:8px;flex-direction:column;line-height:1.2;text-align:center}.topic-bar svg{width:27px;height:27px}.section{padding-block:48px}.section.compact{padding-block:0 15px}.section-heading .eyebrow{font-size:10px;margin-bottom:10px}.section-heading h2{font-size:31px;margin-bottom:19px}.section-intro{display:block;margin-bottom:26px}.section-intro p{font-size:15px;margin-bottom:16px}.section-intro .text-link{font-size:13px}.cards{grid-template-columns:1fr;gap:24px}.card-photo{aspect-ratio:8/5}.card-body{padding:23px 22px 48px}.card h3{font-size:25px;margin-bottom:12px}.card p{font-size:15px}.card-number{width:39px;height:39px;left:16px;top:16px}.calculator-teaser{padding:27px 22px;background-size:30px 30px;border-radius:13px}.calculator-teaser h2{font-size:27px;line-height:1.15}.calculator-teaser p{font-size:14px}.calculator-teaser .eyebrow{font-size:10px;letter-spacing:.09em}.teaser-fields{grid-template-columns:1fr 1fr;gap:15px}.teaser-fields label:first-child{grid-column:1/-1}.teaser-fields button{grid-column:1/-1;width:100%}.teaser-fields input{font-size:16px}.water-split{grid-template-columns:1fr;gap:36px;margin-top:27px}.water-panel{padding-left:23px}.water-panel h3{font-size:27px}.water-panel p{font-size:16px}.about-strip{grid-template-columns:1fr;gap:15px}.about-strip p{font-size:17px;margin-bottom:10px}.about-strip>div{flex-direction:row;align-items:center;gap:24px}.about-strip .button{font-size:13px;padding:12px 16px}.footer-grid{gap:32px 20px;padding-bottom:35px}.footer-grid>div:first-child{grid-column:1/-1}.footer-grid>div:last-child{grid-column:1/-1;border-top:1px solid var(--line);padding-top:23px}.footer-grid>div>a:not(.brand){font-size:13px}.footer-contact>a{font-size:15px!important}.footer-bottom{display:block;padding-bottom:25px}.footer-bottom>div{margin-top:15px;gap:20px;flex-wrap:wrap}.consent{left:16px;bottom:16px;width:320px;padding:14px}.consent p{font-size:12px}.breadcrumbs{margin-bottom:24px}.breadcrumbs ol{font-size:12px;line-height:1.6}.breadcrumbs li+li:before{margin-inline:7px}.page-top{padding-block:23px 32px}.page-top h1{font-size:33px;letter-spacing:-.035em;line-height:1.16;margin-bottom:20px}.page-top .eyebrow{font-size:10px;margin-bottom:12px}.page-top .lead{font-size:17px;line-height:1.65}.article-body{font-size:17px;line-height:1.8}.article-body section{margin-top:34px}.article-body h2{font-size:25px;margin-bottom:16px}.article-body p{margin-bottom:22px}.article-cover{margin-bottom:29px}.article-cover img{border-radius:10px}.article-sources{margin-top:35px}.subtopics{padding:20px;margin-bottom:30px}.subtopics a{font-size:12px}.table-wrap{border-radius:7px}th,td{padding:13px 14px;font-size:13px;min-width:110px}.faq summary{font-size:16px;padding-block:18px}.faq p{font-size:15px;padding-right:8px}.hub-content{padding-bottom:55px}.hub-group{margin-top:43px}.hub-group h2{font-size:26px}.contact-grid{grid-template-columns:1fr}.contact-panel,.route-panel{padding:25px}.contact-panel h2{font-size:28px}.contact-panel .button{font-size:14px;padding:13px 20px}.contact-email{font-size:16px}.road{width:calc(100% + 50px);margin-inline:-25px}.route-illustration{padding-top:15px}.brief-grid{gap:14px}.brief-grid>div{padding:22px 18px}.brief-grid h3{font-size:20px}.brief-grid p{font-size:13px}.step-num{margin-bottom:18px}.legal{padding-bottom:55px}.sitemap-grid{grid-template-columns:1fr;gap:22px;padding-bottom:55px}.sitemap-grid h2{font-size:25px}.sitemap-grid li{font-size:14px;margin-bottom:12px}.calc-layout{grid-template-columns:1fr;gap:22px}.calc-layout form,.calc-result{padding:26px 22px}.calc-fields{grid-template-columns:1fr 1fr;gap:20px 15px}.calc-fields label{font-size:12px}.input-wrap input{font-size:16px;padding:12px 10px}.input-wrap>span{font-size:12px;padding-right:8px}.calc-result{position:static;min-height:310px}.result-number{font-size:56px;margin-top:20px}.calc-layout h2{font-size:25px}.calc-explanation{margin-top:40px}.chooser{gap:22px}.chooser legend{font-size:18px}.chooser-output{padding:25px 22px;margin-bottom:0}.chooser-output h2{font-size:25px}.chooser-output p,.chooser-output ul{font-size:15px}.error-page{padding-block:65px 85px}.error-page h1{font-size:34px}.error-page p{font-size:17px}.error-code{font-size:90px}}
@media(max-width:360px){.hero h1{font-size:37px}.hero-actions{gap:16px}.hero-actions .button{padding-inline:14px;font-size:12px}.hero-actions .text-link{font-size:12px}.calc-fields{grid-template-columns:1fr}.brief-grid{grid-template-columns:1fr}.page-top h1{font-size:30px}.topic-bar a{font-size:12px}.about-strip>div{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}.calculator-teaser{padding:24px 19px}.calculator-teaser h2{font-size:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.card:hover .card-photo img{transform:none}}

.calc-diagram{margin:0 0 38px}.calc-diagram svg{width:100%;height:auto;display:block}.calc-diagram figcaption{font-size:12px;line-height:1.6;color:var(--muted);margin-top:12px}

.card-utility{background:#eef8fc;border-color:#bedde7;justify-content:center}.utility-kicker{padding:30px 27px 0;color:var(--blue);display:flex;align-items:center;gap:13px;font-size:12px;font-weight:700;letter-spacing:.05em;line-height:1.45}.utility-kicker svg{width:32px;height:32px}.card-utility .card-body{flex:0;padding-bottom:70px}.card-utility .card-photo{display:none}