*{box-sizing:border-box}
:root{--navy:#06182c;--navy-dark:#020c18;--red:#c90000;--white:#fff;--text:#142235}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:#fff}
.site-header{background:#fff;position:relative;z-index:10}
.topbar{min-height:175px;padding:20px 5%;display:flex;align-items:center;justify-content:space-between;gap:35px}
.brand{display:block;flex:1;min-width:0}
.brand img{display:block;width:min(520px,100%);max-height:125px;object-fit:contain;object-position:left center}
.phone-block{flex-shrink:0;text-align:right;display:flex;flex-direction:column;align-items:flex-end}
.phone-block span{font-size:15px;letter-spacing:2px;font-weight:700;color:var(--navy)}
.phone-block a{color:var(--red);font-size:30px;font-weight:800;text-decoration:none;margin-top:5px;white-space:nowrap}
.nav{background:var(--navy);min-height:125px;padding:20px 5%;display:flex;align-items:center;justify-content:center;gap:25px}
.nav-links{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:24px}
.nav a{color:#fff;text-decoration:none;font-size:17px;font-weight:800;white-space:nowrap}
.nav-cta{background:var(--red);padding:18px 28px;border-radius:5px}
.hero{min-height:635px;color:#fff;background:linear-gradient(90deg,rgba(0,0,0,.78),rgba(0,0,0,.42)),url("hero-hvac.jpg") center/cover no-repeat}
.hero-content{padding:58px 6% 70px}
.eyebrow{font-size:20px;font-weight:800;letter-spacing:3px;margin:0 0 25px}
h1{font-size:clamp(44px,6vw,76px);line-height:1.04;margin:0 0 26px}
.hero-copy{font-size:24px;line-height:1.45;max-width:700px;margin-bottom:30px}
.hero-buttons{display:flex;flex-wrap:wrap;gap:18px}
.btn{display:inline-block;padding:20px 30px;border-radius:5px;color:#fff;text-decoration:none;font-size:19px;font-weight:800}
.btn-red{background:var(--red)}.btn-blue{background:var(--navy)}
.services{padding:58px 5%}
.services h2{text-align:center;color:var(--navy);font-size:36px;line-height:1.15;margin:0 0 38px}
.service-grid{max-width:1200px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.service-card{background:#fff;border-radius:6px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.16);text-align:center;padding-bottom:22px}
.service-image{height:175px;background:linear-gradient(135deg,#697783,#1d2933)}
.image-install{background:linear-gradient(135deg,#8799a4,#354b5c)}
.image-maintenance{background:linear-gradient(135deg,#535e65,#171c20)}
.image-emergency{background:linear-gradient(135deg,#202a2e,#050505)}
.image-commercial{background:linear-gradient(135deg,#9eb2c1,#4b6274)}
.image-sheetmetal{background:linear-gradient(135deg,#b7b7b7,#4a4a4a)}
.service-card h3{font-size:16px;margin:22px 10px 10px}
.service-card p{font-size:14px;line-height:1.45;min-height:42px;padding:0 16px}
.service-card a{color:var(--red);font-weight:800;text-decoration:none}
.comfort-club{background:var(--navy);color:#fff;padding:70px 6%;text-align:center}
.comfort-content{max-width:850px;margin:auto}
.comfort-club h2{font-size:42px;margin:0 0 12px}
.price{font-size:52px;font-weight:900;color:#fff;margin-top:8px}
.price span{font-size:24px;font-weight:500}
.monthly{font-size:24px;font-weight:700;color:#fff;margin-bottom:22px}
.comfort-club p{font-size:20px;line-height:1.55}
.comfort-club ul{display:inline-block;text-align:left;font-size:18px;line-height:2;margin:15px auto 28px}
.about{display:grid;grid-template-columns:42% 58%;min-height:350px;background:var(--navy-dark);color:#fff}
.about-copy{padding:55px 7%}
.about-copy h2{font-size:36px;margin-top:0}
.about-copy p{font-size:20px;line-height:1.5;margin-bottom:30px}
.about-image{min-height:350px;background:linear-gradient(90deg,rgba(6,24,44,.25),rgba(6,24,44,.05)),url("service-van.jpg") center/cover no-repeat}
.trust{padding:58px 5%}
.trust-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:35px}
.trust-grid>div{display:flex;align-items:center;gap:15px}
.trust-grid b{font-size:42px;color:var(--navy)}
.trust-grid h3{margin:0;font-size:16px}
.trust-grid p{margin:8px 0 0}
.footer{background:var(--navy-dark);color:#fff;text-align:center;padding:60px 5% 25px}
.footer h2{font-size:34px}.footer p{font-size:20px}.copyright{margin-top:45px;font-size:14px!important;opacity:.75}
@media(max-width:800px){
.topbar{min-height:205px;padding:18px 24px;display:flex;flex-direction:column;justify-content:center;gap:12px}
.brand{flex:none;width:100%}
.brand img{width:100%;max-height:92px;object-position:center}
.phone-block{align-items:center;text-align:center}
.phone-block span{font-size:12px;letter-spacing:1px}
.phone-block a{font-size:24px}
.nav{min-height:auto;padding:18px 24px 20px;display:block}
.nav-links{justify-content:flex-start;gap:14px 18px;margin-bottom:18px}
.nav a{font-size:13px}
.nav-cta{display:block;width:fit-content;margin:0 auto;padding:14px 22px}
.hero{min-height:700px}.hero-content{padding:45px 24px}
h1{font-size:48px}.hero-copy{font-size:19px}
.hero-buttons{display:block}.hero-buttons .btn{display:block;width:100%;text-align:center;margin-bottom:16px;font-size:17px}
.service-grid{grid-template-columns:1fr 1fr}
.about{grid-template-columns:1fr}.about-copy{padding:45px 24px}.about-image{min-height:260px}
.trust-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
.topbar{min-height:190px;padding:16px 14px}
.brand img{width:100%;max-height:78px}
.phone-block span{font-size:10px}
.phone-block a{font-size:22px}
.nav{padding-left:14px;padding-right:14px}
.nav-links{gap:12px 14px}
.nav a{font-size:12px}
h1{font-size:46px}.eyebrow{font-size:15px;letter-spacing:2px}
.service-grid{grid-template-columns:1fr}
.comfort-club h2{font-size:34px}
.price{font-size:44px}.price span{font-size:20px}.monthly{font-size:21px}
}