/* Layout: dark, photo-backed trade site. Black ground, full-bleed HVAC photos behind sections, heavy uppercase hero, one hot accent for every action. */
:root{--bg:#0B0B0C;--panel:#151517;--card:#1D1D20;--ink:#F4F4F2;--muted:#A9A9A6;--line:#2C2C30;--accent:#E4572E;--accent-dk:#C2421E;
--display:"Archivo","Arial Black",Arial,sans-serif;--body:"Archivo",Arial,sans-serif;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16.5px/1.6 var(--body)}
img{display:block;max-width:100%;object-fit:cover;background:var(--card)}
.w{max-width:1160px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.sample{background:#FFF4C2;color:#3D3300;font-size:.85rem;text-align:center;padding-block:8px}
.sample a{color:inherit;font-weight:700}
h1,h2,h3{font-family:var(--display);margin:0;line-height:1.05;text-wrap:balance}
p{margin:0}
a{color:inherit}
a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
/* header */
.hdr{background:#000;position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line)}
.hdr .w{display:flex;align-items:center;gap:24px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--display);font-weight:900;text-transform:uppercase;line-height:.95;font-size:1rem;letter-spacing:.01em}
.logo i{width:38px;height:38px;border-radius:8px;background:linear-gradient(135deg,var(--accent),#7A2412);display:grid;place-items:center;font-style:normal;font-size:1.1rem}
.logo span{color:var(--accent);display:block;font-size:.72rem;letter-spacing:.12em}
.menu{display:flex;gap:4px;margin-left:auto;align-items:center}
.menu>a,.dd>a{text-decoration:none;font-weight:600;font-size:.95rem;padding:10px 12px;border-radius:4px;display:block}
.menu>a:hover,.dd>a:hover,.menu a[aria-current]{color:var(--accent)}
.dd{position:relative}
.dd>a::after{content:" \25BE";font-size:.75em}
.dd-list{position:absolute;top:100%;left:0;min-width:220px;background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:6px;display:none;flex-direction:column}
.dd:hover .dd-list,.dd:focus-within .dd-list{display:flex}
.dd-list a{text-decoration:none;padding:10px 12px;border-radius:4px;font-size:.95rem}
.dd-list a:hover{background:var(--card);color:var(--accent)}
.call{background:var(--accent);color:#fff;text-decoration:none;font-weight:700;padding:11px 18px;border-radius:4px;white-space:nowrap}
.call:hover{background:var(--accent-dk)}
/* buttons */
.btns{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;text-decoration:none;font-weight:700;padding:15px 26px;border-radius:4px;text-transform:uppercase;letter-spacing:.04em;font-size:.95rem}
.b1{background:var(--accent);color:#fff}.b1:hover{background:var(--accent-dk)}
.b2{border:2px solid #fff;color:#fff}.b2:hover{background:#fff;color:#000}
/* photo bands */
.photo{position:relative;background:#000 center/cover no-repeat}
.photo::before{content:"";position:absolute;inset:0;background:rgba(0,0,0,.72)}
.photo>.w{position:relative}
/* hero */
.hero .w{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding-block:72px}
.hero .shot{width:100%;aspect-ratio:4/3;border-radius:10px;box-shadow:0 30px 60px -20px rgba(0,0,0,.8)}
.hero .copy{display:flex;flex-direction:column;gap:20px;min-width:0}
.hero h1{font-size:clamp(2.4rem,5.4vw,4rem);font-weight:900;text-transform:uppercase;letter-spacing:-.01em}
.hero p{color:#D6D6D3;font-size:1.1rem;max-width:50ch}
.badges{display:flex;flex-wrap:wrap;gap:10px}
.badge{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:7px 14px;font-weight:600;font-size:.88rem;background:rgba(0,0,0,.35)}
.badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.hero.sub .w{grid-template-columns:1fr;padding-block:64px}
.crumbs{font-size:.85rem;color:#C9C9C6}
.crumbs a{color:#C9C9C6}
/* about */
.about .w{display:grid;grid-template-columns:1fr 1fr;align-items:center;padding-block:72px}
.about img{width:100%;aspect-ratio:5/4;border-radius:10px}
.about .panel{background:var(--accent);color:#fff;padding:40px;border-radius:10px;margin-left:-48px;position:relative;display:flex;flex-direction:column;gap:16px;box-shadow:0 30px 60px -20px rgba(0,0,0,.7)}
.about .panel h2{font-size:clamp(1.8rem,3.4vw,2.4rem)}
.about .panel p{color:#FFE9E1}
.about .panel .lic{font-weight:700;letter-spacing:.06em;text-transform:uppercase;font-size:.82rem;color:#fff}
/* sections */
section{padding-block:80px}
.center{text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px;margin-bottom:40px}
.center h2,.sec-h{font-size:clamp(2rem,4vw,2.8rem);font-weight:800}
.center p{color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.card{position:relative;display:block;aspect-ratio:3/4;border-radius:10px;overflow:hidden;text-decoration:none;color:#fff;background:var(--card)}
.card img{position:absolute;inset:0;width:100%;height:100%;transition:transform .5s ease}
.card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15) 20%,rgba(0,0,0,.85))}
.card div{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:22px;display:flex;flex-direction:column;gap:6px}
.card h3{font-size:1.3rem;font-weight:800;text-transform:uppercase}
.card p{font-size:.92rem;color:#DADAD7}
.card span{color:var(--accent);font-weight:700;font-size:.9rem}
.card:hover img{transform:scale(1.05)}
/* quote steps */
.quote .w{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:stretch}
.steps{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px;counter-reset:s}
.steps li{background:#fff;color:#111;border-radius:8px;padding:20px 22px;display:grid;grid-template-columns:56px 1fr;gap:14px;align-items:center;counter-increment:s}
.steps li::before{content:"0" counter(s);font-family:var(--display);font-weight:900;font-size:1.6rem;color:var(--accent)}
.steps b{display:block;font-size:1.05rem}
.steps span{color:#555;font-size:.95rem}
.qpanel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:36px;display:flex;flex-direction:column;gap:16px;justify-content:center}
.qpanel .big{font-family:var(--display);font-weight:900;font-size:clamp(1.8rem,3.6vw,2.6rem)}
.qpanel p{color:var(--muted)}
/* faq */
.faq{max-width:820px;margin:0 auto;border-top:1px solid var(--line)}
details{border-bottom:1px solid var(--line)}
summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:20px 4px;font-weight:600}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--accent);font-size:1.4rem;line-height:1}
details[open] summary::after{content:"\2212"}
details p{color:var(--muted);padding:0 4px 20px}
/* cta */
.cta .w{text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px;padding-block:96px}
.cta h2{font-size:clamp(2.2rem,5vw,3.4rem);font-weight:900;text-transform:uppercase}
.cta p{color:#D6D6D3}
.towns{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.towns span{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-weight:600}
/* detail page */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{width:100%;aspect-ratio:4/3;border-radius:10px}
.checks{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.checks li{display:flex;gap:12px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:14px 16px;font-weight:500}
.checks li::before{content:"\2713";color:#fff;background:var(--accent);border-radius:50%;width:22px;height:22px;display:grid;place-items:center;font-size:.8rem;flex:none;margin-top:1px}
.prose{display:flex;flex-direction:column;gap:16px}
.prose p{color:var(--muted)}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:40px}
.facts div{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:26px}
.facts strong{display:block;font-family:var(--display);font-weight:900;font-size:1.8rem;text-transform:uppercase;color:var(--accent)}
.facts span{color:var(--muted)}
form{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:30px;display:flex;flex-direction:column;gap:14px}
label{font-weight:600;font-size:.92rem;display:flex;flex-direction:column;gap:6px}
input,select,textarea{font:inherit;padding:12px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink)}
button{font:inherit;font-weight:700;text-transform:uppercase;letter-spacing:.04em;background:var(--accent);color:#fff;border:0;border-radius:4px;padding:15px;cursor:pointer}
.note{font-size:.88rem;color:var(--muted)}
table{width:100%;border-collapse:collapse}td{padding:12px 0;border-bottom:1px solid var(--line)}td:last-child{text-align:right;color:var(--muted)}
/* footer */
footer{background:#000;border-top:1px solid var(--line);padding-block:56px 28px;font-size:.93rem}
.fcols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.fcols h4{margin:0 0 12px;font-family:var(--display);text-transform:uppercase;letter-spacing:.08em;font-size:.82rem;color:var(--accent)}
.fcols a{display:block;text-decoration:none;color:var(--muted);padding-block:3px}
.fcols a:hover{color:#fff}
.fcols p{color:var(--muted)}
.fine{border-top:1px solid var(--line);margin-top:40px;padding-top:20px;color:#777;font-size:.82rem;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}
.fine a{color:#999}
.float{position:fixed;right:max(18px,env(safe-area-inset-right,0px));bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:30;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;padding:13px 18px;border-radius:999px;box-shadow:0 10px 30px -8px rgba(0,0,0,.7)}
@media(max-width:900px){
  .hero .w,.about .w,.quote .w,.split{grid-template-columns:1fr}
  .about .panel{margin-left:0;margin-top:-40px;margin-inline:16px}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .fcols{grid-template-columns:1fr 1fr}
  .facts{grid-template-columns:1fr}
  .menu .hide-sm{display:none}
}
@media(max-width:640px){
  .hdr .w{flex-wrap:wrap;gap:8px;padding-block:10px}
  .menu{width:100%;margin-left:0;overflow-x:auto}
  .dd-list{display:none!important}
  .call{margin-left:auto}
  .cards{grid-template-columns:1fr 1fr;gap:10px}
  .card{aspect-ratio:3/4}
  .card div{padding:14px}.card p{display:none}
  section{padding-block:60px}
  .fcols{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){.card img{transition:none}}