:root{--navy:#062b50;--orange:#f15a24;--ink:#17202a;--cream:#f7f4ee;--line:#ded8ce;--white:#fff;--muted:#68727a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font:16px/1.6 Arial,sans-serif}h1,h2,h3{font-family:Georgia,serif;font-weight:400;line-height:1.06;margin:0 0 20px}h1{font-size:clamp(3rem,6vw,6rem);letter-spacing:-.045em}h2{font-size:clamp(2.3rem,4vw,4.3rem);letter-spacing:-.035em}h3{font-size:1.65rem}p{margin:0 0 24px}.wrap{width:min(1180px,calc(100% - 48px));margin:auto}.topbar{background:var(--navy);color:#fff;font-size:12px}.topbar-inner{height:34px;display:flex;justify-content:space-between;align-items:center}.topbar a{color:#fff;text-decoration:none;margin-left:22px}.header{background:rgba(255,255,255,.97);position:sticky;top:0;z-index:20;border-bottom:1px solid #eee}.nav{height:92px;display:flex;align-items:center;justify-content:space-between}.brand img{width:275px;max-height:70px;object-fit:contain;object-position:left center}.nav nav{display:flex;align-items:center;gap:30px}.nav nav a{text-decoration:none;color:var(--ink);font-weight:700;font-size:14px}.nav-cta{background:var(--orange)!important;color:#fff!important;padding:13px 20px;border-radius:4px}.hero{position:relative;min-height:680px;background:#eee;overflow:hidden}.hero-photo{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,26,45,.9) 0%,rgba(4,26,45,.72) 42%,rgba(4,26,45,.08) 72%),url('../images/underfloor-copper.png') center/cover no-repeat;filter:saturate(.85)}.hero-grid{position:relative;min-height:680px;display:grid;align-items:center}.hero-copy{width:min(700px,70%);color:#fff;padding:70px 0}.hero-copy h1{font-size:clamp(3.6rem,6vw,6.6rem)}.hero-copy p{font-size:20px;max-width:650px;color:#e9edf0}.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-weight:800;font-size:12px;color:var(--orange);display:block;margin-bottom:18px}.eyebrow.light{color:#ffad86}.actions{display:flex;gap:14px;flex-wrap:wrap}.btn{display:inline-block;border:0;border-radius:4px;padding:15px 23px;background:var(--orange);color:#fff;text-decoration:none;font-weight:800;cursor:pointer}.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.6)}.btn-dark{background:var(--navy)}.btn-white{background:#fff;color:var(--navy)}.trust{background:var(--cream);border-bottom:1px solid var(--line)}.trust-grid{display:grid;grid-template-columns:repeat(4,1fr)}.trust-grid div{padding:28px;border-right:1px solid var(--line)}.trust-grid div:first-child{border-left:1px solid var(--line)}.trust b,.trust span{display:block}.trust span{font-size:13px;color:var(--muted);margin-top:4px}.section{padding:110px 0}.section-head{display:grid;grid-template-columns:1.35fr .65fr;gap:80px;align-items:end;margin-bottom:55px}.section-head p{color:var(--muted);font-size:18px}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.service-card{border:1px solid var(--line);text-decoration:none;color:inherit;background:#fff;transition:.2s}.service-card:hover{transform:translateY(-4px);box-shadow:0 14px 40px rgba(0,0,0,.08)}.service-image{height:210px;background-size:cover;background-position:center}.si-1{background-image:url('../images/radiators.jpg')}.si-2{background-image:url('../images/underfloor-install.jpg')}.si-3{background-image:url('../images/heatpump-plant.png')}.si-4{background-image:url('../images/heatpump-cylinder.png')}.si-5{background-image:url('../images/manifold.jpg')}.card-body{padding:28px}.card-body>span{font-size:12px;color:var(--orange);font-weight:bold}.card-body p{color:var(--muted);min-height:50px}.card-body b{color:var(--orange);font-size:13px}.dark{background:var(--navy);color:#fff}.feature{padding:100px 0}.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.feature-grid img{width:100%;height:480px;object-fit:cover}.feature p{font-size:18px;color:#d7e0e7}.text-link{color:#fff;font-weight:bold}.split{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.split>img,.about-photo{width:100%;height:560px;object-fit:cover}.about-photo{background:url('../images/underfloor-copper.png') center/cover}.split p{font-size:18px;color:var(--muted)}.cta{background:var(--orange);color:#fff;padding:70px 0}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}.cta h2{max-width:760px;margin:0}.page-hero{background:var(--cream);padding:100px 0;border-bottom:1px solid var(--line)}.page-hero h1{max-width:900px}.page-hero p{font-size:20px;color:var(--muted);max-width:750px}.service-list{border-top:1px solid var(--line)}.service-row{display:grid;grid-template-columns:80px 1fr 50px;gap:20px;padding:38px 0;border-bottom:1px solid var(--line);text-decoration:none;color:inherit;align-items:center}.service-row>span{color:var(--orange);font-weight:bold}.service-row h2{font-size:2.3rem;margin-bottom:8px}.service-row p{margin:0;color:var(--muted)}.service-row>b{font-size:2rem;color:var(--orange)}.content-narrow{max-width:800px}.lead{font-size:22px;color:var(--muted)}.values{display:grid;grid-template-columns:1fr 1fr;gap:12px}.values span{padding:16px;background:var(--cream);font-weight:bold}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.project-card{border:1px solid var(--line);background:#fff}.project-card img{width:100%;height:310px;object-fit:cover}.project-card div{padding:24px}.project-card span{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:var(--orange);font-weight:bold}.quote-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:80px}.contact-box{background:var(--navy);color:#fff;padding:28px;display:grid;gap:8px}.quote-form{background:var(--cream);padding:38px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.quote-form label{display:grid;gap:7px;font-size:13px;font-weight:bold;margin-bottom:18px}.quote-form input,.quote-form select,.quote-form textarea{width:100%;padding:14px;border:1px solid #cbc5bc;background:#fff;font:inherit}.flash{padding:12px 0;color:var(--orange);font-weight:bold}footer{background:#071b2e;color:#dce4ea;padding:65px 0 25px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:70px}.footer-logo{width:320px;max-width:100%;filter:brightness(0) invert(1);opacity:.95}.footer-grid a{display:block;color:#dce4ea;text-decoration:none;margin:8px 0}.footer-grid p{color:#aebbc6}.copyright{border-top:1px solid #294052;margin-top:45px;padding-top:22px;font-size:12px;color:#8295a5}
@media(max-width:800px){.wrap{width:min(100% - 28px,1180px)}.topbar{display:none}.nav{height:74px}.brand img{width:205px}.nav nav a:not(.nav-cta){display:none}.hero,.hero-grid{min-height:610px}.hero-photo{background:linear-gradient(0deg,rgba(4,26,45,.92),rgba(4,26,45,.25)),url('../images/underfloor-copper.png') center/cover}.hero-copy{width:100%;align-self:end;padding:60px 0}.hero-copy h1{font-size:3.6rem}.trust-grid{grid-template-columns:1fr 1fr}.trust-grid div{border-bottom:1px solid var(--line)}.section{padding:75px 0}.section-head,.feature-grid,.split,.quote-layout{grid-template-columns:1fr;gap:40px}.service-grid,.project-grid{grid-template-columns:1fr}.feature-grid img,.split>img,.about-photo{height:380px}.cta-inner{align-items:flex-start;flex-direction:column}.form-grid{grid-template-columns:1fr}.quote-form{padding:24px}.footer-grid{grid-template-columns:1fr}.page-hero{padding:70px 0}.page-hero h1{font-size:3.6rem}}