:root{
  --navy:#071f3a;--blue:#0879d8;--cyan:#18a9c9;--red:#bd2630;
  --ink:#11263e;--muted:#5d6d7e;--pale:#f3f7fb;--line:#dce6ef;
  --white:#fff;--shadow:0 20px 60px rgba(7,31,58,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);line-height:1.6;background:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:auto}
.topbar{background:var(--navy);color:#dce9f5;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;gap:20px;padding:9px 0}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid #e7edf3}
.nav{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{height:62px;width:auto;object-fit:contain}
nav{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:800}
nav a:hover{color:var(--blue)}
.nav-cta,.btn-primary{background:var(--blue);color:#fff}
.nav-cta{padding:12px 17px;border-radius:9px}
.nav-cta:hover{background:#0668b8;color:#fff}
.hero{color:#fff;background:
 radial-gradient(circle at 86% 18%,rgba(24,169,201,.35),transparent 27%),
 linear-gradient(115deg,#061a2e 0%,#0a365d 58%,#0879d8 100%);overflow:hidden}
.hero .container{min-height:650px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:44px;padding:80px 0}
.eyebrow{color:#61d9ee;font-size:13px;letter-spacing:.15em;text-transform:uppercase;font-weight:900}
h1,h2,h3{line-height:1.1}
h1{font-size:clamp(42px,5.7vw,74px);letter-spacing:-.05em;margin:15px 0 22px}
h1 span{color:#5bd9ef}
.hero p{font-size:18px;max-width:690px;color:#e2edf6;margin:0 0 30px}
.actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 20px;border-radius:9px;font-weight:900;border:1px solid transparent;transition:.2s}
.btn:hover{transform:translateY(-1px)}
.btn-primary:hover{background:#0668b8;color:#fff}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:#edf7ff}
.btn-outline{border-color:rgba(255,255,255,.65);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.1)}
.hero-photo{min-height:465px;border-radius:28px;overflow:hidden;position:relative;background:#163d60 url("https://images.unsplash.com/photo-1607472586893-edb57bdc0e39?auto=format&fit=crop&w=1100&q=85") center/cover no-repeat;box-shadow:0 30px 90px rgba(0,0,0,.28);border:1px solid rgba(255,255,255,.2)}
.hero-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.02),rgba(4,22,39,.48))}
.hero-logo-panel{min-height:465px;border-radius:28px;overflow:hidden;position:relative;background:#fff;display:flex;align-items:center;justify-content:center;padding:45px;box-shadow:0 30px 90px rgba(0,0,0,.22);border:1px solid rgba(255,255,255,.3)}
.hero-logo-panel img{width:min(92%,520px);height:auto;max-height:370px;object-fit:contain}

.hero-badge{position:absolute;z-index:2;left:22px;bottom:22px;background:#fff;color:var(--ink);padding:15px 18px;border-radius:13px;font-weight:900;box-shadow:0 15px 35px rgba(0,0,0,.22)}
.section{padding:88px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 45px}
.section-head .eyebrow{color:var(--blue)}
h2{font-size:clamp(32px,4vw,50px);letter-spacing:-.04em;margin:10px 0 14px}
.section-head p{color:var(--muted);font-size:17px}
.services{background:var(--pale)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:28px;box-shadow:0 8px 28px rgba(7,31,58,.05);transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.icon{width:54px;height:54px;border-radius:14px;background:#e7f6fc;color:var(--blue);display:grid;place-items:center;font-size:24px;margin-bottom:18px}
.card h3{margin:0 0 9px;font-size:21px}
.card p{margin:0;color:var(--muted)}
.card-link{display:inline-block;margin-top:16px;color:var(--blue);font-weight:900}
.trust{background:var(--navy);color:#fff}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.trust-item{text-align:center;padding:7px 18px}
.trust-item strong{display:block;font-size:16px}
.trust-item span{font-size:13px;color:#bed0e1}
.split{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}
.photo{min-height:455px;border-radius:25px;overflow:hidden;background:#0b385e center/cover no-repeat;box-shadow:var(--shadow)}
.photo-plumbing{background-image:url("plumbing-project.jpg")}
.photo-plumbing-project{background-image:url("plumbing-project.jpg")}
.photo-power-flushing{background-image:url("power-flushing-project.jpg")}
.photo-boiler-replacement{background-image:url("boiler-replacement-project.jpg")}
.photo-boiler-servicing{background-image:url("boiler-servicing-project.jpg")}
.photo-gas-safety{background-image:url("gas-safety-project.jpg")}
.photo-heating-project{background-image:url("heating-project.jpg")}
.copy p{color:var(--muted);font-size:16px}
.ticks{list-style:none;padding:0;margin:24px 0 0}
.ticks li{margin:11px 0;font-weight:800}
.ticks li:before{content:"✓";display:inline-grid;place-items:center;width:22px;height:22px;margin-right:10px;border-radius:50%;background:#dff6ea;color:#11824c;font-weight:900}
.areas{background:var(--pale)}
.area-list{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.area{background:#fff;border:1px solid var(--line);border-radius:999px;padding:11px 17px;font-weight:850;box-shadow:0 5px 15px rgba(7,31,58,.04)}
.reviews{background:#fff}
.review-note{border:1px dashed #b8c9d9;background:#f8fbfd;border-radius:15px;padding:25px;text-align:center;color:var(--muted)}
.cta{background:linear-gradient(115deg,#08294d,#0879d8);color:#fff}
.cta-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:35px;align-items:center}
.cta p{color:#dbe9f6;font-size:17px}
.contact-box,.form-card{background:#fff;color:var(--ink);border-radius:18px;padding:28px;box-shadow:0 20px 55px rgba(0,0,0,.12)}
.contact-line{display:flex;gap:12px;align-items:flex-start;margin:15px 0;font-weight:800}
.contact-line span{color:var(--blue)}
footer{background:#061a2e;color:#c4d2df;padding:42px 0 85px}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:35px}
footer .logo{height:60px;filter:none}
footer h3{color:#fff;font-size:15px}
footer a:hover{color:#fff}
.footer-small{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:20px;font-size:12px;color:#8fa5b9}
.page-hero{background:linear-gradient(115deg,#061a2e,#0a365d);color:#fff;padding:75px 0}
.page-hero h1{font-size:clamp(40px,5vw,62px);max-width:850px}
.page-hero p{max-width:760px;color:#dce9f5;font-size:18px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
label{font-size:14px;font-weight:850}
input,textarea,select{width:100%;font:inherit;border:1px solid #cdd9e4;border-radius:9px;padding:12px 13px;background:#fff;color:var(--ink)}
textarea{min-height:150px;resize:vertical}
input:focus,textarea:focus,select:focus{outline:3px solid rgba(8,121,216,.13);border-color:var(--blue)}
.form-help{font-size:13px;color:var(--muted);margin-top:12px}
.mobile-bar{display:none}
@media(max-width:920px){
 nav{display:none}
 .hero .container,.split,.cta-grid{grid-template-columns:1fr}
 .hero-photo{min-height:360px}.hero-logo-panel{min-height:360px}
 .grid{grid-template-columns:repeat(2,1fr)}
 .trust-grid{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
 .topbar .container{justify-content:center;text-align:center}
 .topbar .desktop{display:none}
 .nav{min-height:70px}.logo{height:54px}
 .hero .container{min-height:auto;padding:55px 0}
 h1{font-size:44px}
 .hero p{font-size:16px}
 .hero-photo{min-height:300px}
 .section{padding:65px 0}
 .grid{grid-template-columns:1fr}
 .trust-grid{grid-template-columns:1fr 1fr}
 .trust-item{padding:8px 4px}
 .trust-item span{display:block}
 .split{gap:28px}
 .photo{min-height:300px}
 .footer-grid{grid-template-columns:1fr}
 .form-grid{grid-template-columns:1fr}
 .field.full{grid-column:auto}
 .mobile-bar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:100;background:#fff;border-top:1px solid var(--line);padding:8px;gap:8px;box-shadow:0 -8px 25px rgba(0,0,0,.1)}
 .mobile-bar a{flex:1;text-align:center;padding:12px;border-radius:8px;font-weight:900}
 .mobile-call{background:var(--blue);color:#fff}
 .mobile-email{background:#eef5fb;color:var(--navy)}
}