:root{--ink:#171b2b;--blue:#262d89;--red:#d62029;--light:#f3f5f9;--muted:#545b6c;--line:#dce0e8;--radius:8px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);font-size:17px;line-height:1.65;background:white}a{color:var(--blue);text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #d62029;outline-offset:4px}.wrap{width:min(1240px,calc(100% - 80px));margin:auto}.skip{position:fixed;top:-100px;z-index:1000;background:white;padding:12px}.skip:focus{top:0}header{background:white;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100}.header{display:flex;align-items:center;gap:22px;min-height:100px}.brand{display:block;flex:0 0 130px}.brand img{width:130px;height:88px;object-fit:contain;display:block}nav{display:flex;align-items:center;gap:19px;margin-left:auto;font-size:14px;font-weight:700}.navlink{text-decoration:none;color:var(--ink);white-space:nowrap}.navlink:hover,.navlink[aria-current]{color:var(--red)}.header-phone{font-weight:700;font-size:14px;white-space:nowrap;text-decoration:none}.button{display:inline-flex;align-items:center;justify-content:center;padding:14px 23px;border:0;border-radius:4px;background:var(--red);color:white;text-decoration:none;font-size:14px;line-height:1.5;font-weight:700;letter-spacing:.04em;cursor:pointer;min-height:48px}.button:hover{background:#b01921}.header>.button{font-size:12px;padding:12px 16px;white-space:nowrap}.secondary{background:white;color:var(--ink);border:1px solid var(--line)}.secondary:hover{background:var(--light)}.dropdown{position:relative}.dropdown summary{cursor:pointer;list-style:none;white-space:nowrap}.dropdown summary:after{content:'⌄';margin-left:6px}.dropdown>div{position:absolute;top:38px;left:-22px;min-width:190px;background:white;border:1px solid var(--line);box-shadow:0 12px 30px #1112;padding:12px;border-radius:4px}.dropdown .navlink{display:block;padding:9px 12px}.menu-toggle{display:none}.hero{padding:72px 0 80px;background:#f7f8fb}.hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:64px;align-items:center}.eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;margin:0 0 18px}h1,h2,h3{line-height:1.12;letter-spacing:-.035em;margin:0;color:var(--ink)}h1{font-size:clamp(36px,4.2vw,61px);max-width:790px}h2{font-size:clamp(29px,3vw,43px);max-width:930px;margin-bottom:26px}h3{font-size:22px;letter-spacing:-.02em;margin-bottom:14px}.subtitle{color:var(--blue);font-weight:700;font-size:22px;line-height:1.4;margin-top:24px}.hero p:not(.eyebrow){max-width:630px}.hero p{color:var(--muted)}p{margin:0 0 22px;max-width:900px}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:18px;margin-top:28px}.text-call{font-weight:700;font-size:15px;white-space:nowrap}.system-panel{padding:42px 32px;background:white;border-top:5px solid var(--blue);box-shadow:0 15px 45px #1822430a}.system-panel h2{font-size:37px}.system-panel h2 span{color:var(--red)}.system-panel>.flow{grid-template-columns:1fr 1fr;margin:32px 0}.system-panel>p:last-child{margin-bottom:0}.trust{border-bottom:1px solid var(--line);background:white}.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-top:25px;padding-bottom:25px}.trust span{font-size:12px;letter-spacing:.055em;text-transform:uppercase;font-weight:800;line-height:1.55}.section{padding:80px 0}.section .lead{font-size:23px;line-height:1.4;color:var(--blue);margin-top:-10px;margin-bottom:26px}.section .button{margin-top:12px}.tinted{background:var(--light)}.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.split:has(>div:only-child){grid-template-columns:1fr}.split p{max-width:660px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:32px 0}.card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin:0;min-width:0}.card p{color:var(--muted);margin-bottom:0}.card h3{line-height:1.3}.service-card{text-decoration:none;transition:box-shadow .15s}.service-card:hover{box-shadow:0 8px 25px #20234412}.service-card span{display:block;margin-top:20px;color:var(--blue);font-weight:700}.card figure{margin:-28px -28px 25px}.card figure img{border-radius:8px 8px 0 0;height:250px;object-fit:cover}.card figcaption{display:none}.flow{display:grid;grid-template-columns:repeat(4,1fr);list-style:none;padding:0;margin:36px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.flow li{padding:20px 10px;font-weight:700;font-size:16px}.flow span{display:block;font-size:13px;color:var(--red);margin-bottom:4px}.tags{display:flex;flex-wrap:wrap;padding:0;gap:12px;list-style:none;margin:28px 0}.tags li{background:var(--light);border:1px solid var(--line);padding:10px 16px;border-radius:4px}.gallery{display:grid;gap:24px;margin:28px 0}.gallery:empty{display:none}.gallery.three{grid-template-columns:repeat(3,1fr)}.gallery.two{grid-template-columns:repeat(2,1fr)}figure{margin:0 0 24px;min-width:0}figure img{width:100%;max-height:550px;object-fit:contain;background:#eef0f4;display:block;border-radius:var(--radius);height:auto}.gallery img{height:350px;object-fit:contain}.hero-photo img{max-height:560px}.hero-photo{margin:0}figcaption{font-size:13px;color:var(--muted);padding:10px 0;line-height:1.45}.dark{background:#202660;color:white}.dark h2,.dark .lead,.dark .eyebrow{color:white}.dark p{color:#e0e3f5}.dark .button{margin-right:12px}.small{font-size:14px;color:var(--muted)}blockquote p{font-size:20px;color:var(--ink)!important}cite{display:block;font-size:14px;font-style:normal;font-weight:700;margin-top:20px}.steps{padding-left:24px;max-width:650px}.steps li{padding:15px;border-bottom:1px solid var(--line);font-weight:700}.contact-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:60px;margin-top:40px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}label{display:block;font-size:15px;font-weight:700;margin-bottom:20px}input,select,textarea{display:block;width:100%;border:1px solid #aeb4c1;border-radius:4px;background:white;padding:13px;margin-top:8px;color:var(--ink);min-width:0}textarea{resize:vertical}.contact-card{padding:32px;background:var(--light);align-self:start}.contact-card h2{font-size:25px}.contact-card a{overflow-wrap:anywhere}.big-phone{font-size:25px;font-weight:700;line-height:1.4;display:block;margin-bottom:25px}.contact-card p{margin-top:24px}#form-status:not(:empty){padding:20px;background:var(--light);margin-top:20px}footer{background:#121626;color:#dde1ed;padding:60px 0 24px}footer h2,footer h3{color:white;font-size:20px;letter-spacing:0}footer h3{font-size:16px;margin-bottom:22px}footer p{font-size:14px}footer a{color:#dde1ed;font-size:14px;display:block;text-decoration:none;margin-bottom:9px;overflow-wrap:anywhere}footer a:hover{text-decoration:underline}.footer-grid{display:grid;grid-template-columns:1.2fr 1.3fr 1fr .7fr;gap:40px}.fine{border-top:1px solid #ffffff25;margin-top:34px;padding-top:22px;font-size:13px}.mobile-cta{display:none}@media(min-width:1450px){.wrap{width:min(1320px,calc(100% - 100px))}}@media(max-width:1180px){.header{gap:14px}nav{gap:13px}.header-phone{display:none}.hero-grid{gap:35px}.header>.button{font-size:12px}.brand{flex-basis:115px}.brand img{width:115px}}@media(max-width:950px){.wrap{width:calc(100% - 44px)}.header{min-height:84px;flex-wrap:wrap;justify-content:space-between}.brand img{height:76px}.header>.button{margin-left:auto}.menu-toggle{display:block;background:white;border:1px solid var(--line);padding:10px 12px;border-radius:4px;order:2;font-size:16px}nav{display:none;order:3;width:100%;margin:0;padding:12px 0 25px;align-items:stretch;font-size:17px}nav.open{display:flex;flex-direction:column;gap:0}.navlink,.dropdown summary{padding:12px}.dropdown>div{position:static;border:0;box-shadow:none;padding-left:20px}.hero-grid{gap:28px}.hero{padding:44px 0}.system-panel{padding:28px}.system-panel h2{font-size:29px}.cards{grid-template-columns:repeat(2,1fr)}.split{gap:30px}.contact-grid{gap:28px}.footer-grid{grid-template-columns:1fr 1fr}.gallery.three{grid-template-columns:repeat(2,1fr)}}@media(max-width:680px){.wrap{width:calc(100% - 36px)}.header>.button{display:none}.header{min-height:76px}.brand img{height:70px;width:110px}.menu-toggle{margin-left:auto}.hero-grid{grid-template-columns:1fr}.hero{padding:32px 0 40px}h1{font-size:38px;line-height:1.08}.subtitle{font-size:20px;margin:18px 0}.hero p{font-size:16px;line-height:1.6}.hero .eyebrow{font-size:12px}.actions{gap:16px;margin-top:20px}.actions .button{width:100%}.text-call{display:block;text-align:center;width:100%}.system-panel{margin-top:10px}.system-panel h2{font-size:30px}.system-panel .flow{margin:18px 0}.trust .wrap{grid-template-columns:1fr 1fr;gap:18px}.trust span{font-size:11px}.section{padding:48px 0}h2{font-size:31px}.section .lead{font-size:20px}.cards,.gallery.three,.gallery.two,.split,.contact-grid,.form-grid{grid-template-columns:1fr}.cards{gap:16px}.card{padding:24px}.card figure{margin:-24px -24px 22px}.flow{grid-template-columns:1fr 1fr}.gallery img{height:auto;max-height:460px}.split{gap:24px}.gallery{margin:20px 0}.dark .button{width:100%;margin-right:0}.contact-card{padding:24px}.contact-grid{gap:32px}.form-grid{gap:0}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child,.footer-grid>div:nth-child(2){grid-column:1/-1}footer{padding-bottom:95px}.mobile-cta{display:flex;position:fixed;bottom:0;left:0;right:0;background:white;box-shadow:0 -2px 20px #151a2920;padding:9px 12px max(9px,env(safe-area-inset-bottom));gap:10px;z-index:110;align-items:center}.mobile-cta>a{flex:1;text-align:center;font-size:13px;font-weight:700;text-decoration:none}.mobile-cta .button{padding:12px 9px}.hero-photo img{max-height:430px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Scoped program callouts; existing layout remains unchanged. */
.rebate-section{padding:48px 0;background:#fff}.rebate-panel{background:#f3f5fb;border:1px solid #dce0e8;border-left:4px solid #262d89;border-radius:8px;padding:36px 40px}.rebate-offer{display:flex;align-items:center;gap:28px;margin:26px 0;padding:22px 0;border-top:1px solid #dce0e8;border-bottom:1px solid #dce0e8}.rebate-offer strong{font-size:clamp(28px,3.2vw,44px);line-height:1.15;color:#262d89;white-space:nowrap}.rebate-offer p{margin:0;font-size:16px;max-width:570px}.rebate-disclaimer{margin:24px 0 0;max-width:1000px}.rebate-panel .actions{margin-top:20px}.rebate-panel .button{margin-top:0}@media(max-width:680px){.rebate-section{padding:32px 0}.rebate-panel{padding:26px 22px}.rebate-offer{display:block}.rebate-offer strong{display:block;margin-bottom:14px}.rebate-panel .actions{align-items:stretch}.rebate-panel .actions .button{width:100%}}

.financing-section{padding:36px 0;background:#fff}.financing-panel{border:1px solid #dce0e8;border-left:4px solid #d62029;border-radius:8px;background:#f8f9fb;padding:32px 40px}.financing-panel h2{font-size:clamp(27px,2.6vw,36px);max-width:940px}.financing-disclaimer{margin:22px 0 0}.financing-panel .button{margin-top:4px}#financing-interest{scroll-margin-top:130px}@media(max-width:680px){.financing-section{padding:28px 0}.financing-panel{padding:26px 22px}.financing-panel .button{width:100%}}

.iaq-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.iaq-section .card h3{font-size:20px;letter-spacing:0}@media(max-width:680px){.iaq-cards{grid-template-columns:1fr}}

/* Additive HVAC Advice and homepage FAQ only. */
.seo-faq details{border-bottom:1px solid #d4d9dc;padding:18px 0}.seo-faq summary{font-weight:700;cursor:pointer;line-height:1.5}.seo-faq details p{max-width:850px}.advice-article{max-width:850px}.advice-article h2{margin-top:38px}.advice-article figure{margin:28px 0}.advice-article figure img{max-width:100%;width:auto;max-height:520px;object-fit:contain}.advice-article figcaption{font-size:14px;margin-top:8px}

/* Enlarge the desktop header mark without changing header flow or height. */
@media (min-width:951px){.brand{clip-path:inset(0 -20px)}.brand img{transform:scale(1.2);transform-origin:center}}