:root{
  --navy:#0f2a47;
  --navy-2:#163b63;
  --blue:#1f6fd6;
  --gold:#f0a500;
  --ink:#1c2530;
  --muted:#5b6b7d;
  --line:#e3e8ef;
  --bg:#f6f8fb;
  --white:#ffffff;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* Top utility bar */
.topbar{background:var(--navy);color:#cdd9e6;font-size:13.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:7px 24px;flex-wrap:wrap}
.topbar a{color:#cdd9e6}
.topbar .badge{color:var(--gold);font-weight:600}

/* Header / nav */
header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.nav{display:flex;justify-content:space-between;align-items:center;padding:16px 24px}
.brand{display:flex;align-items:center;gap:14px}
.logo{width:48px;height:48px;border-radius:10px;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;letter-spacing:.5px;flex:0 0 auto}
.brand h1{font-size:19px;line-height:1.15;color:var(--navy)}
.brand a{color:var(--navy)}
.brand a:hover{text-decoration:none}
.brand span{display:block;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.4px;text-transform:uppercase}
nav ul{display:flex;gap:26px;list-style:none;align-items:center}
nav a{color:var(--ink);font-weight:600;font-size:15px}
nav a.active{color:var(--blue)}
.nav-cta{background:var(--blue);color:#fff !important;padding:9px 18px;border-radius:8px}
.nav-cta:hover{background:#155bb5;text-decoration:none}
@media(max-width:760px){nav ul{gap:16px}nav li.hide-sm{display:none}}

/* Hero */
.hero{position:relative;color:#fff;padding:64px 0 72px;overflow:hidden;background:var(--navy)}
.hero.bg-elec::before{content:"";position:absolute;inset:0;background:url('images/gen-elec-hero.jpg') center/cover no-repeat;opacity:.92}
.hero.bg-hvac::before{content:"";position:absolute;inset:0;background:url('images/gen-hvac-hero.jpg') center/cover no-repeat;opacity:.92}
.hero.bg-home::before{content:"";position:absolute;inset:0;background:url('images/gen-home-hero.jpg') center/cover no-repeat;opacity:.92}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,var(--navy) 0%,rgba(15,42,71,.92) 42%,rgba(15,42,71,.55) 75%,rgba(15,42,71,.35) 100%)}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.eyebrow{display:inline-block;background:rgba(240,165,0,.16);color:var(--gold);font-weight:700;font-size:13px;letter-spacing:.6px;text-transform:uppercase;padding:6px 12px;border-radius:6px;margin-bottom:18px}
.hero h2{font-size:40px;line-height:1.12;letter-spacing:-.5px;margin-bottom:16px}
.hero p{font-size:17.5px;color:#d4e0ee;max-width:560px}
.hero-cta{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 24px;border-radius:9px;font-weight:700;font-size:15.5px;cursor:pointer;border:none;font-family:inherit}
.btn-gold{background:var(--gold);color:#1a1300}
.btn-gold:hover{background:#ffb921;text-decoration:none}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.4)}
.btn-ghost:hover{border-color:#fff;text-decoration:none}
.hero-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:24px}
.hero-card h3{font-size:14px;text-transform:uppercase;letter-spacing:.6px;color:var(--gold);margin-bottom:14px}
.hero-card dl{display:grid;grid-template-columns:auto 1fr;gap:8px 14px;font-size:14.5px}
.hero-card dt{color:#9fb6cf}
.hero-card dd{color:#fff;font-weight:600;text-align:right}
@media(max-width:860px){.hero .wrap{grid-template-columns:1fr}.hero h2{font-size:32px}}

/* Section scaffolding */
section{padding:64px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 44px}
.section-head .kicker{color:var(--blue);font-weight:700;text-transform:uppercase;letter-spacing:.7px;font-size:13px}
.section-head h2{font-size:31px;color:var(--navy);margin:8px 0 12px;letter-spacing:-.3px}
.section-head p{color:var(--muted);font-size:17px}
.alt{background:var(--bg)}
.group-label{max-width:1080px;margin:0 auto 18px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--muted)}
.group-label .tag{padding:5px 12px;border-radius:20px;font-weight:800;font-size:12px;letter-spacing:.4px}
.tag-blue{background:#e8f1fc;color:#155bb5}
.tag-gold{background:rgba(240,165,0,.16);color:#9a6a00}
.group-gap{margin-top:34px}

/* Why-prefab prose */
.prose2{display:grid;grid-template-columns:1fr 1fr;gap:38px;max-width:980px;margin:0 auto}
@media(max-width:760px){.prose2{grid-template-columns:1fr;gap:26px}}
.prose2 h3{font-size:21px;color:var(--navy);margin-bottom:12px;display:flex;align-items:center;gap:10px}
.prose2 h3 .dot{width:34px;height:34px;border-radius:9px;background:var(--bg);display:inline-flex;align-items:center;justify-content:center;font-size:18px;flex:0 0 auto}
.prose2 p{font-size:16.5px;color:#33414f;line-height:1.72}

/* Photo band */
.band{position:relative;padding:84px 0;color:#fff;text-align:center;background:var(--navy)}
.band::before{content:"";position:absolute;inset:0;background:url('images/gen-band-shop.jpg') center/cover no-repeat fixed}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(rgba(15,42,71,.82),rgba(15,42,71,.86))}
.band .wrap{position:relative;z-index:2}
.band h2{font-size:30px;margin-bottom:12px;letter-spacing:-.3px}
.band p{font-size:18px;color:#d4e0ee;max-width:680px;margin:0 auto}
@media(max-width:760px){.band::before{background-attachment:scroll}}

/* Cards grid */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cards.two{grid-template-columns:repeat(2,1fr)}
@media(max-width:860px){.cards,.cards.two{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.cards,.cards.two{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 1px 2px rgba(15,42,71,.04);transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(15,42,71,.12)}
.card-photo{height:172px;position:relative;background:var(--navy);overflow:hidden}
.card-photo img{width:100%;height:100%;object-fit:cover;display:block}
.card-photo .num{position:absolute;left:0;top:14px;background:var(--gold);color:#1a1300;font-size:12px;font-weight:800;letter-spacing:.5px;padding:5px 12px 5px 14px;border-radius:0 20px 20px 0}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.card .ic{width:50px;height:50px;border-radius:11px;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
.card .num{font-size:12.5px;font-weight:800;color:var(--blue);letter-spacing:.5px;margin-bottom:6px}
.card h3{font-size:20px;color:var(--navy);margin-bottom:4px}
.card .cip{font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:.3px;margin-bottom:12px}
.card>.card-body>p,.card p.desc{font-size:14.7px;color:#33414f;margin-bottom:14px}
.card ul{list-style:none;font-size:14.5px;color:var(--ink);margin-top:auto}
.card ul li{padding:7px 0;border-top:1px solid var(--line);display:flex;gap:10px}
.card ul li::before{content:"›";color:var(--gold);font-weight:800}

/* Category cards (home) */
.catcard{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 1px 2px rgba(15,42,71,.04);transition:transform .15s,box-shadow .15s}
.catcard:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(15,42,71,.12);text-decoration:none}
.catcard .photo{height:180px;position:relative;background:var(--navy)}
.catcard .photo img{width:100%;height:100%;object-fit:cover;display:block}
.catcard .photo .ic{position:absolute;left:18px;bottom:-22px;width:50px;height:50px;border-radius:12px;background:#fff;box-shadow:0 3px 10px rgba(15,42,71,.18);display:flex;align-items:center;justify-content:center;font-size:26px}
.catcard .cbody{padding:32px 26px 26px;display:flex;flex-direction:column;flex:1}
.catcard h3{font-size:22px;color:var(--navy);margin-bottom:8px}
.catcard p{font-size:15px;color:#33414f;margin-bottom:16px}
.catcard .more{margin-top:auto;color:var(--blue);font-weight:700;font-size:15px}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:760px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:460px){.steps{grid-template-columns:1fr}}
.step{text-align:center;padding:8px}
.step .n{display:inline-flex;align-items:center;justify-content:center;width:50px;height:50px;border-radius:50%;background:var(--navy);color:#fff;font-size:20px;font-weight:800;margin-bottom:14px}
.step h4{font-size:17px;color:var(--navy);margin-bottom:6px}
.step p{font-size:14.5px;color:var(--muted)}

/* Facts strip */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:760px){.facts{grid-template-columns:repeat(2,1fr)}}
.fact{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;text-align:center}
.fact b{display:block;font-size:24px;color:var(--navy);font-weight:800}
.fact span{font-size:13.5px;color:var(--muted);font-weight:600}

/* Callout */
.callout{background:linear-gradient(150deg,var(--navy),var(--navy-2));color:#fff;border-radius:16px;padding:40px;display:grid;grid-template-columns:1.5fr 1fr;gap:30px;align-items:center}
@media(max-width:760px){.callout{grid-template-columns:1fr;padding:28px}}
.callout h2{font-size:27px;margin-bottom:12px}
.callout p{color:#d4e0ee;font-size:16px}
.callout .who{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:20px;font-size:14.5px}
.callout .who b{color:var(--gold);display:block;margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px;font-size:12.5px}
.callout .who ul{list-style:none}
.callout .who li{padding:5px 0;color:#e6eef7}
.callout .who li::before{content:"✓";color:var(--gold);font-weight:800;margin-right:9px}

/* Quote form */
.quote-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start;max-width:980px;margin:0 auto}
@media(max-width:760px){.quote-grid{grid-template-columns:1fr;gap:28px}}
.quote-info h3{font-size:21px;color:var(--navy);margin-bottom:12px}
.quote-info p{color:var(--muted);font-size:16px;margin-bottom:18px}
.quote-info ul{list-style:none}
.quote-info li{font-size:15px;color:var(--ink);padding:6px 0}
.quote-info li b{color:var(--navy)}
.qform{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:0 4px 18px rgba(15,42,71,.06)}
.qform label{display:block;font-size:12.5px;font-weight:700;color:var(--navy);text-transform:uppercase;letter-spacing:.4px;margin-bottom:14px}
.qrow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:460px){.qrow{grid-template-columns:1fr}}
.qform input,.qform select,.qform textarea{width:100%;margin-top:6px;padding:11px 13px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--ink);font-family:inherit;font-size:15px;font-weight:400;text-transform:none;letter-spacing:0}
.qform input:focus,.qform select:focus,.qform textarea:focus{outline:none;border-color:var(--blue)}
.qchecks{border:1px solid var(--line);border-radius:8px;padding:14px 16px;margin-bottom:14px}
.qchecks legend{font-size:12.5px;font-weight:700;color:var(--navy);text-transform:uppercase;letter-spacing:.4px;padding:0 6px}
.qcheck{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--ink);text-transform:none;letter-spacing:0;font-weight:500;margin-bottom:8px}
.qcheck input{width:auto;margin:0}
.qnote{font-size:13px;color:var(--muted);text-align:center;margin-top:12px}

/* Footer */
footer{background:var(--navy);color:#b9c8d8;padding:54px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;margin-bottom:34px}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr}}
footer h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.3px}
footer p,footer li{font-size:14.5px;color:#b9c8d8;list-style:none;line-height:1.8}
footer a{color:#cfe0f1}
.foot-brand .logo{margin-bottom:14px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:13px;color:#8da3ba;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.center{text-align:center}