/* Kurtzer's Heating & Air Conditioning Inc.
   Brand: navy + white, with the tan from the crew's uniform shirts as the accent.
   Plain CSS, no framework, no build step - files you own outright. */

:root{
  --navy:#22356b;        /* pulled from the logo */
  --navy-dk:#16224a;
  --navy-dp:#0e1730;
  --tan:#c9a97a;         /* uniform shirt tan */
  --tan-dk:#b08f5e;
  --ink:#16224a;
  --body:#44505f;
  --muted:#6c7c8d;
  --line:#e0e5ec;
  --bg:#ffffff;
  --bg-alt:#f4f7fa;
  --maxw:1140px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
  color:var(--body);background:var(--bg);
  line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--navy)}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:#fff;padding:10px 16px;z-index:100}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 26px;border-radius:4px;
  font-weight:700;text-decoration:none;font-size:1rem;
  border:2px solid transparent;cursor:pointer;
  transition:background .15s ease,color .15s ease,transform .05s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--tan);color:#1f1708;border-color:var(--tan)}
.btn-primary:hover{background:var(--tan-dk);border-color:var(--tan-dk)}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.call-icon{font-size:1.1em;line-height:1}

/* ---------- header: white, so the navy logo sits on brand ---------- */
.site-header{background:#fff;position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);box-shadow:0 1px 6px rgba(22,34,74,.05)}
.header-inner{display:flex;align-items:center;gap:26px;min-height:88px}
.brand{margin-right:auto;display:flex;align-items:center}
.brand img{height:56px;width:auto}
.site-nav{display:flex;gap:26px}
.site-nav a{color:var(--navy);text-decoration:none;font-weight:600;font-size:.95rem}
.site-nav a:hover{color:var(--tan-dk)}
.header-call{background:var(--navy);color:#fff;padding:12px 22px;font-size:.98rem}
.header-call:hover{background:var(--navy-dk)}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;isolation:isolate}
.hero-media{
  position:absolute;inset:0;z-index:-2;
  background:url("img/job-ductwork.jpg") center 38% / cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(105deg,rgba(14,23,48,.94) 0%,rgba(34,53,107,.86) 55%,rgba(34,53,107,.62) 100%);
}
.hero-content{padding:104px 24px 96px}
.eyebrow{color:var(--tan);font-weight:700;letter-spacing:.09em;text-transform:uppercase;font-size:.84rem;margin:0 0 18px}
.hero h1{
  margin:0 0 22px;color:#fff;
  font-size:clamp(2.1rem,5.2vw,3.6rem);
  line-height:1.1;letter-spacing:-.02em;font-weight:800;
  text-shadow:0 2px 18px rgba(0,0,0,.35);
}
.lede{font-size:clamp(1.02rem,1.9vw,1.22rem);color:#dbe3ee;max-width:620px;margin:0 0 34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- trust bar ---------- */
.trustbar{background:var(--navy-dp);color:#fff;padding:28px 0}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.trust strong{display:block;color:var(--tan);font-size:1.06rem;letter-spacing:.02em}
.trust span{display:block;color:#a9b6cb;font-size:.86rem}

/* ---------- sections ---------- */
.section{padding:78px 0}
.section-alt{background:var(--bg-alt)}
h2{color:var(--ink);font-size:clamp(1.6rem,3.2vw,2.15rem);line-height:1.2;margin:0 0 14px;font-weight:800;letter-spacing:-.01em}
h3{color:var(--ink);font-size:1.12rem;margin:0 0 10px;font-weight:700}
.section-lede{font-size:1.06rem;max-width:680px;margin:0 0 40px}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:26px 24px;border-top:3px solid var(--tan)}
.card p{margin:0;font-size:.97rem}

/* ---------- equipment ---------- */
.equip{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.equip li{background:#fff;border:1px solid var(--line);border-radius:4px;padding:15px 18px;font-weight:600;color:var(--ink);font-size:.96rem;border-left:3px solid var(--navy)}

/* ---------- markets ---------- */
.markets{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.market{background:#fff;border:1px solid var(--line);border-radius:6px;padding:28px 26px}
.market p{margin:0;font-size:.97rem}
/* Labs get visual priority - it is the specialty most competitors can't match. */
.market-feature{border-left:4px solid var(--tan);background:linear-gradient(180deg,#fff 0%,#fbf7f1 100%)}
.market-feature h3{color:var(--navy)}

/* Pull-note: sets a credential apart from body copy without shouting. */
.pullnote{
  background:var(--bg-alt);border-left:4px solid var(--tan);
  padding:18px 22px;border-radius:0 5px 5px 0;
  font-size:.99rem;color:var(--ink);
}
.pullnote strong{color:var(--navy)}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gallery figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.gallery img{width:100%;height:260px;object-fit:cover}
.gallery figcaption{padding:13px 16px;font-size:.9rem;color:var(--muted);border-top:3px solid var(--tan)}

/* ---------- about ---------- */
.about-photo{margin:0 0 22px;border-radius:6px;overflow:hidden;border:1px solid var(--line);background:#fff}
.about-photo img{width:100%;height:210px;object-fit:cover}
.about-photo figcaption{padding:11px 16px;font-size:.88rem;color:var(--muted);text-align:center}

.about-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:46px;align-items:start}
.about-grid p{margin:0 0 16px}
.about-card{background:var(--navy);color:#d3dcea;border-radius:6px;padding:30px 28px}
.about-card h3{color:#fff;margin-bottom:16px}
.ticks{list-style:none;padding:0;margin:0}
.ticks li{position:relative;padding-left:28px;margin-bottom:13px;font-size:.97rem}
.ticks li::before{content:"\2713";position:absolute;left:0;top:0;color:var(--tan);font-weight:800}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.big-call{
  display:inline-flex;align-items:center;gap:16px;
  background:var(--bg-alt);border:1px solid var(--line);border-left:4px solid var(--tan);
  border-radius:5px;padding:18px 24px;text-decoration:none;color:var(--ink);margin-bottom:26px;
}
.big-call:hover{background:#eaf0f6}
.big-call .call-icon{font-size:1.9rem;color:var(--navy)}
.big-call-label{display:block;font-size:.8rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.big-call strong{font-size:1.5rem;letter-spacing:.01em}
.contact-list{margin:0}
.contact-list dt{font-weight:700;color:var(--ink);margin-top:14px;font-size:.86rem;text-transform:uppercase;letter-spacing:.06em}
.contact-list dd{margin:2px 0 0}

.contact-form{background:#fff;border:1px solid var(--line);border-radius:6px;padding:30px 28px;box-shadow:0 2px 14px rgba(22,34,74,.05)}
.contact-form h3{margin-bottom:18px}
.contact-form label{display:block;margin-bottom:15px;font-weight:600;color:var(--ink);font-size:.9rem}
.contact-form input,.contact-form textarea{
  width:100%;margin-top:6px;padding:11px 13px;border:1px solid #c4cedb;border-radius:4px;
  font:inherit;font-weight:400;color:var(--body);background:#fff;
}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(34,53,107,.14)}
.contact-form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:.82rem;color:var(--muted);margin:12px 0 0}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-dp);color:#a9b6cb;padding:48px 0 20px}
.footer-inner{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
.footer-brand strong{color:#fff;font-size:1.02rem;letter-spacing:.02em}
.site-footer p{margin:8px 0 0;font-size:.93rem;max-width:420px}
.footer-contact{display:flex;flex-direction:column;gap:5px;font-size:.95rem}
.footer-contact a{color:var(--tan);text-decoration:none;font-weight:600}
.footer-contact a:hover{text-decoration:underline}
.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:32px;padding-top:18px;color:#7e8ca4}

/* ---------- responsive ---------- */
@media (max-width:940px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .equip{grid-template-columns:repeat(3,1fr)}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:34px}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .site-nav{display:none}
  .brand img{height:46px}
  .header-inner{min-height:74px}
}
@media (max-width:620px){
  .hero-content{padding:66px 24px 60px}
  .section{padding:56px 0}
  .cards,.equip{grid-template-columns:1fr}
  .contact-form .row{grid-template-columns:1fr}
  .call-num{display:none}
  .header-call{padding:12px 16px}
  .brand img{height:40px}
  .hero-actions .btn{width:100%;justify-content:center}
}

/* Contact form status message (Web3Forms submit result) */
.form-status{margin:12px 0 0;font-size:.92rem;font-weight:600;min-height:1.2em}
.form-status.ok{color:#1c7a3e}
.form-status.err{color:#b00020}
.hp{position:absolute;left:-9999px}