:root{color-scheme:light;--paper:#f7f8f4;--white:#fff;--ink:#18323c;--muted:#53666b;--line:#d6dfdc;--green:#14664e;--green-dark:#0c4b39;--pale:#e9f0e9;--gold:#d1ac64;--danger:#9f3028;--wrap:1180px;font-family:Inter,"Segoe UI",Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-size:16px;line-height:1.65}a{color:var(--green);text-decoration-thickness:1px;text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,input,select,textarea{font:inherit}button{cursor:pointer}img{max-width:100%;display:block;height:auto}h1,h2,h3,h4{line-height:1.16;margin:0 0 20px;text-wrap:balance}h1,h2{font-family:Georgia,"Times New Roman",serif;font-weight:500;letter-spacing:-.035em}h1{font-size:clamp(2.6rem,4.8vw,4.8rem)}h2{font-size:clamp(2rem,3.4vw,3.1rem)}h3{font-size:1.2rem;letter-spacing:-.02em}p{margin:0 0 19px}ul,ol{padding-left:1.3rem}li{margin:9px 0}::selection{background:#c6e6cf;color:#12382b}[hidden]{display:none!important}:focus-visible{outline:3px solid #936013;outline-offset:4px;border-radius:3px}.wrap{width:min(var(--wrap),calc(100% - 64px));margin:auto}.skip-link{position:absolute;left:20px;top:-100px;z-index:200;background:var(--white);padding:12px 22px}.skip-link:focus{top:10px}.site-header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;gap:35px;justify-content:space-between;min-height:99px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);flex-shrink:0}.brand-icon{width:36px;height:41px;display:flex;align-items:flex-end;gap:4px;padding:5px 2px;border-bottom:2px solid var(--green)}.brand-icon i{display:block;background:var(--green);width:7px;border-radius:1px}.brand-icon i:nth-child(1){height:14px}.brand-icon i:nth-child(2){height:26px}.brand-icon i:nth-child(3){height:20px}.brand-name{font-weight:750;font-size:17px;letter-spacing:-.045em;line-height:1.1}.brand-name small{display:block;letter-spacing:.16em;font-size:9px;text-transform:uppercase;font-weight:500;margin-top:7px;color:var(--muted)}.nav{display:flex;align-items:center;gap:24px;font-size:13px;font-weight:600}.nav a{color:var(--ink);text-decoration:none;padding:12px 0}.nav a:hover,.nav a[aria-current=page]{color:var(--green);text-decoration:underline;text-underline-offset:7px}.nav a.nav-cta{background:var(--green);color:white;padding:12px 18px;border-radius:4px;text-decoration:none}.nav a.nav-cta:hover{background:var(--green-dark)}.menu-button{display:none;border:1px solid var(--line);background:white;border-radius:4px;padding:8px 13px;color:var(--ink)}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-weight:650;font-size:11px;color:var(--green);margin-bottom:20px}.hero{padding:66px 0 46px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.04fr 1fr;gap:64px;align-items:center}.hero h1{max-width:640px}.hero .lead{font-size:18px;color:var(--muted);max-width:540px;line-height:1.75}.hero figure{margin:0;align-self:stretch;position:relative;padding-bottom:24px}.hero figure img{width:100%;height:100%;min-height:490px;object-fit:cover;border-radius:4px 70px 4px 4px;object-position:50% 50%}.hero figcaption{position:absolute;bottom:0;font-size:10px;color:var(--muted)}.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin:30px 0 21px}.btn{display:inline-flex;justify-content:center;align-items:center;gap:15px;border:1px solid var(--green);border-radius:4px;background:var(--green);color:#fff;text-decoration:none;font-weight:650;font-size:14px;padding:14px 23px;line-height:1.4;min-height:49px}.btn:hover{background:var(--green-dark);color:white;text-decoration:none}.btn.secondary{background:transparent;color:var(--green)}.btn.secondary:hover{background:var(--pale)}.btn:disabled{opacity:.65;cursor:progress}.text-link{font-size:14px;font-weight:650}.micro{font-size:12px;color:var(--muted);line-height:1.6}.hero-meta{display:flex;gap:20px;color:var(--muted);font-size:12px}.hero-meta span:before{content:'✓';color:var(--green);font-weight:bold;margin-right:7px}.intro-strip{padding:28px 0 34px;border-bottom:1px solid var(--line)}.strip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.strip-grid div{display:flex;gap:18px;font-size:14px;align-items:center}.step-no{font:21px Georgia,serif;color:var(--green);padding-right:18px;border-right:1px solid var(--line)}.section{padding:80px 0}.section.white{background:white}.section.pale{background:var(--pale)}.section-heading{display:flex;gap:45px;justify-content:space-between;align-items:flex-end;margin-bottom:37px}.section-heading h2{margin-bottom:0;max-width:650px}.section-heading>p{max-width:360px;color:var(--muted);font-size:15px}.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.split>div>p{color:var(--muted)}.feature-list{margin:30px 0}.feature-list>div{padding:20px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:35px 1fr;gap:10px}.feature-list strong{display:block;font-size:15px;margin-bottom:3px}.feature-list p{font-size:14px;margin:0;color:var(--muted)}.feature-list .number{font:19px Georgia,serif;color:var(--green)}.bill-sheet{background:#fff;border:1px solid var(--line);padding:34px;box-shadow:0 16px 50px #18323c0a;border-radius:6px}.sheet-top{display:flex;align-items:center;justify-content:space-between;border-bottom:2px solid var(--ink);padding-bottom:20px;margin-bottom:18px}.sheet-top strong{font-size:18px;line-height:1.2}.sheet-top span{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}.bill-line{display:grid;grid-template-columns:1fr auto;gap:20px;padding:17px 0;border-bottom:1px solid var(--line)}.bill-line b{font-size:14px}.bill-line small{display:block;font-size:12px;color:var(--muted)}.bill-line .tag{font-size:10px;font-weight:650;align-self:center;padding:4px 8px;border-radius:3px;background:var(--pale);color:var(--green)}.bill-line .tag.neutral{background:#eef0f2;color:#4b5e66}.bill-sheet .micro{margin-top:18px;margin-bottom:0}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.guide-card{background:white;border:1px solid var(--line);border-radius:5px;overflow:hidden;display:flex;flex-direction:column}.guide-card img{width:100%;height:220px;object-fit:cover}.guide-card .card-body{padding:26px;display:flex;flex-direction:column;flex:1}.guide-card h3{font-size:20px;margin-bottom:15px}.guide-card p{font-size:14px;color:var(--muted)}.guide-card .text-link{margin-top:auto}.callout{background:var(--ink);color:#fff;border-radius:5px;padding:45px;display:flex;align-items:center;justify-content:space-between;gap:45px}.callout h2{font-size:36px;max-width:650px;margin-bottom:14px}.callout p{color:#d1dcdf;max-width:650px;margin-bottom:0}.callout .btn{background:#dce9dd;color:#173d30;border-color:#dce9dd;flex-shrink:0}.callout .btn:hover{background:#c4dfcb}.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq-grid h2{max-width:330px}.faq-list details{border-top:1px solid var(--line);padding:18px 0}.faq-list details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:650;padding-right:15px;min-height:30px}.faq-list details p{color:var(--muted);font-size:15px;padding-top:15px;margin-bottom:4px}.site-footer{background:#102e35;color:#dce5e5;padding:60px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:60px}.site-footer .brand{color:white}.site-footer .brand-name small{color:#b5c8c8}.site-footer .brand-icon{border-color:#9ebdae}.site-footer .brand-icon i{background:#9ebdae}.site-footer p{color:#becdcf;font-size:13px;max-width:380px;margin-top:20px}.site-footer h3{font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:#b5c8c8}.site-footer a{color:#e6eeee}.footer-links{display:grid;gap:11px;font-size:13px}.footer-bottom{margin-top:45px;padding-top:20px;border-top:1px solid #416067;display:flex;justify-content:space-between;gap:30px;font-size:11px;color:#bdcdcd}.breadcrumbs{font-size:12px;padding:27px 0 0;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap}.breadcrumbs a{color:var(--muted)}.page-intro{padding:45px 0 50px;max-width:850px}.page-intro h1{font-size:clamp(2.4rem,4.5vw,4rem)}.page-intro .lead{font-size:19px;color:var(--muted)}.reviewed{font-size:12px;color:var(--muted);margin-top:24px}.article-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:65px;align-items:start;padding-bottom:70px}.toc{position:sticky;top:25px;border-top:2px solid var(--ink);padding-top:20px}.toc h2{font:600 12px/1.3 "Segoe UI",sans-serif;text-transform:uppercase;letter-spacing:.12em;margin-bottom:15px}.toc a{display:block;font-size:13px;padding:7px 0;color:var(--muted)}.prose{max-width:780px;min-width:0}.prose h2{font-size:30px;margin:45px 0 20px;scroll-margin-top:25px}.prose h2:first-child{margin-top:0}.prose h3{font-size:20px;margin:30px 0 15px}.prose p,.prose li{color:#334d56}.prose .answer{font-size:18px;color:var(--ink);border-left:3px solid var(--green);padding-left:23px;margin-bottom:28px}.notice{background:#eef2e9;border-left:3px solid #7c9471;padding:20px 23px;border-radius:0 4px 4px 0;font-size:14px;margin:25px 0}.notice p:last-child{margin-bottom:0}.notice.warning{background:#fbf3e3;border-color:#9a7024}.prose figure{margin:35px 0}.prose figure img{border-radius:5px;width:100%;aspect-ratio:3/2;object-fit:cover}.prose figcaption{font-size:11px;margin-top:9px;color:var(--muted)}.sources{border-top:1px solid var(--line);margin-top:38px;padding-top:20px}.sources h2{font-size:24px}.sources li{font-size:13px}.table-wrap{overflow-x:auto;margin:28px 0;border:1px solid var(--line);border-radius:4px}table{border-collapse:collapse;width:100%;font-size:14px}td,th{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}th{background:var(--pale);font-weight:650}tr:last-child td{border-bottom:0}.search-field{max-width:600px;margin:20px 0 35px}.state-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.state-card{display:block;background:white;border:1px solid var(--line);border-radius:4px;padding:26px;text-decoration:none;color:var(--ink)}.state-card:hover{border-color:var(--green);background:#f1f6ef;text-decoration:none}.state-card h2{font-family:inherit;font-size:21px;letter-spacing:-.02em;margin-bottom:15px}.state-card p{font-size:13px;color:var(--muted);margin-bottom:12px}.state-card span{font-size:12px;color:var(--green);font-weight:650}.field{min-width:0}.field label{display:block;font-size:13px;font-weight:650;margin-bottom:8px;color:var(--ink)}.field input,.field textarea,.field select,.search-field input{width:100%;padding:12px 13px;border:1px solid #a7b9b7;border-radius:4px;background:#fff;color:var(--ink);min-height:48px}.field small{display:block;font-size:12px;color:var(--muted);margin-top:7px}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--green);outline:2px solid #14664e;outline-offset:2px}.field input::placeholder,.field textarea::placeholder{color:#687b80;opacity:1}.inquiry-layout{align-items:start;grid-template-columns:.8fr 1.2fr;gap:70px}.inquiry-form{background:white;border:1px solid var(--line);border-radius:6px;padding:34px}.inquiry-form h2{font-size:30px}.inquiry-form p{font-size:13px;color:var(--muted)}.inquiry-fields{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:22px}.consent-field{display:flex;gap:12px;align-items:flex-start;margin:25px 0}.consent-field input{width:19px;height:19px;margin-top:4px;flex-shrink:0;accent-color:var(--green)}.consent-field label{font-size:13px}.inquiry-error,#calculator-error{color:var(--danger);background:#fff0ed;padding:16px;border-left:3px solid var(--danger);font-size:14px}.inquiry-status{color:var(--green)}.calculator-layout{display:grid;grid-template-columns:1.14fr .86fr;gap:28px;align-items:start;padding-bottom:60px}.calculator-panel,.result-panel{border:1px solid var(--line);background:white;border-radius:6px;padding:30px}.calculator-panel h2,.result-panel h2{font:600 23px/1.3 "Segoe UI",Arial,sans-serif;letter-spacing:-.03em;margin-bottom:15px}.energy-tabs{display:flex;gap:8px;padding:5px;background:#edf1ed;border-radius:5px;margin-bottom:25px}.energy-tabs button{flex:1;border:0;background:transparent;color:var(--ink);padding:11px 12px;border-radius:3px;font-size:14px}.energy-tabs button[aria-selected=true]{background:var(--green);color:white;font-weight:650}.calc-fields{display:grid;grid-template-columns:1fr 1fr;gap:20px}.field.full{grid-column:1/-1}.calculator-panel fieldset{border:0;padding:0;margin:26px 0}.calculator-panel legend{font-size:13px;text-transform:uppercase;letter-spacing:.1em;font-weight:650;border-bottom:1px solid var(--line);width:100%;padding:0 0 10px;margin-bottom:20px}.calculator-panel details{margin:25px 0;border:1px solid var(--line);padding:15px;border-radius:4px}.calculator-panel details .calc-fields{padding-top:20px}.calc-actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.plain-button{border:0;background:transparent;text-decoration:underline;color:var(--muted);padding:12px;min-height:44px}.result-panel{background:#edf3ed;position:sticky;top:25px}.empty-illustration{font-family:Georgia,serif;font-size:65px;color:#a3bbaa;line-height:1;margin:25px 0}.results-ledger{margin:25px 0}.result-row{display:flex;gap:15px;justify-content:space-between;padding:17px 0;border-bottom:1px solid #c5d5c8;font-size:13px}.result-row strong{font-size:20px;white-space:nowrap;letter-spacing:-.04em}.result-hero{padding:25px 0;border-bottom:2px solid var(--green)}.result-hero span{display:block;font-size:13px}.result-hero strong{display:block;font:45px/1.2 Georgia,serif;margin-top:10px;color:var(--green)}.result-panel .btn{margin-top:20px;width:100%}.scope-check{display:grid;grid-template-columns:1fr 1fr;gap:20px}.scope-item{padding:25px;border-top:2px solid var(--green);background:white}.scope-item h3{margin-bottom:12px}.scope-item p{font-size:14px;color:var(--muted)}.article-end{margin-top:35px;border-top:1px solid var(--line);padding-top:25px}.article-end .btn{margin-top:10px}.print-only{display:none}
@media(min-width:1450px){.hero{padding-top:80px;padding-bottom:60px}}@media(max-width:1100px){.nav{gap:16px;font-size:12px}.header-inner{gap:20px}.hero-grid{gap:35px}.hero h1{font-size:54px}.split,.faq-grid{gap:40px}.article-layout{gap:40px;grid-template-columns:200px minmax(0,1fr)}}@media(max-width:900px){.wrap{width:calc(100% - 40px)}.menu-button{display:block}.header-inner{position:relative;min-height:85px}.nav{display:none;position:absolute;top:85px;left:-20px;right:-20px;background:white;padding:20px;z-index:60;border-bottom:1px solid var(--line);box-shadow:0 20px 20px #18323c0a}.nav.open{display:grid;gap:4px}.nav a{padding:12px}.nav-cta{justify-self:start;margin-top:7px}.hero-grid{grid-template-columns:1fr 1fr;gap:30px}.hero h1{font-size:44px}.hero .lead{font-size:16px}.hero figure img{min-height:430px}.section{padding:60px 0}.section-heading{display:block}.section-heading>p{max-width:600px;margin-top:20px}.card-grid{gap:17px}.guide-card .card-body{padding:20px}.guide-card img{height:170px}.callout{padding:30px;display:block}.callout .btn{margin-top:25px}.state-grid{grid-template-columns:1fr 1fr}.article-layout{grid-template-columns:1fr}.toc{position:static;display:flex;gap:15px;flex-wrap:wrap;padding-top:15px}.toc h2{flex:0 0 100%;margin-bottom:0}.toc a{padding:5px 0}.prose{max-width:none}.calculator-layout{grid-template-columns:1fr}.result-panel{position:static}.inquiry-layout{grid-template-columns:1fr;gap:35px}}
@media(max-width:650px){body{font-size:15px}.wrap{width:calc(100% - 36px)}.hero{padding:36px 0 25px}.hero-grid{grid-template-columns:1fr;gap:28px}.hero h1{font-size:43px;max-width:550px}.hero figure img{min-height:0;height:320px;object-position:50% 40%;border-radius:4px 45px 4px 4px}.hero .eyebrow{font-size:10px;letter-spacing:.12em;margin-bottom:16px}.hero-actions{gap:15px;margin-top:24px}.hero-meta{gap:15px;flex-wrap:wrap;font-size:11px}.strip-grid{grid-template-columns:1fr;gap:17px}.strip-grid>div{font-size:13px}.section{padding:48px 0}h2{font-size:33px}.split,.faq-grid{grid-template-columns:1fr;gap:30px}.bill-sheet{padding:24px}.section-heading{margin-bottom:28px}.card-grid{grid-template-columns:1fr}.guide-card img{height:auto;aspect-ratio:16/9}.guide-card h3{font-size:22px}.guide-card .card-body{padding:25px}.callout{padding:28px}.callout h2{font-size:31px}.footer-grid{grid-template-columns:1fr 1fr;gap:35px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block;line-height:1.7}.footer-bottom span{display:block;margin-bottom:7px}.state-grid{grid-template-columns:1fr}.state-card{padding:24px}.page-intro{padding:33px 0 35px}.page-intro h1{font-size:38px}.page-intro .lead{font-size:17px}.breadcrumbs{padding-top:20px}.prose h2{font-size:28px;margin-top:35px}.prose .answer{font-size:17px;padding-left:18px}.inquiry-form{padding:24px 20px}.inquiry-fields{grid-template-columns:1fr}.calculator-panel,.result-panel{padding:24px 20px}.calc-fields{gap:18px 15px}.field label{font-size:12px}.scope-check{grid-template-columns:1fr}.result-hero strong{font-size:40px}.result-row strong{font-size:18px}.calculator-panel .calc-actions .btn{width:100%}.calculator-panel .calc-actions .plain-button{padding-left:0}.prose .table-wrap{font-size:12px}.brand-name{font-size:16px}}
@media(max-width:360px){.wrap{width:calc(100% - 28px)}.hero h1{font-size:38px}.brand-name{font-size:14px}.brand-name small{font-size:8px}.brand-icon{width:31px}.header-inner{gap:10px}.menu-button{font-size:12px}.calc-fields{grid-template-columns:1fr}.field.full{grid-column:auto}.hero-actions .btn{width:100%}.hero figure img{height:270px}.bill-line{gap:10px}.bill-line .tag{font-size:9px}.inquiry-form{padding:20px 16px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}@media print{body{background:white;color:black;font-size:11pt}.site-header,.site-footer,.breadcrumbs,.toc,.callout,.hero-actions,.calc-actions,.energy-tabs,[data-print],.print-hide,.result-panel .btn{display:none!important}.wrap{width:100%}.section{padding:15px 0}.page-intro{padding:0 0 15px}.page-intro h1{font-size:25pt}.calculator-layout,.article-layout{display:block}.calculator-panel,.result-panel{position:static;box-shadow:none;border:1px solid #aaa;background:white;margin-bottom:20px;break-inside:avoid}.result-panel{padding:20px}.result-row,.result-hero{border-color:#888}.result-hero strong{color:black}.calc-fields{grid-template-columns:1fr 1fr}.field input,.field select,.field textarea{border-color:#aaa;color:black}.micro,.prose p,.prose li{color:#333}.print-only{display:block}.prose h2{font-size:17pt;margin-top:25px}a{color:black}.guide-card,.scope-item{break-inside:avoid}figure img{max-height:250px;object-fit:cover}.notice{background:white;border:1px solid #aaa}.inquiry-form{display:none!important}}