/* AirSwift Heating & Air — concept demo site */
:root{
  --cream:#f6f1e7;
  --cream-2:#efe7d6;
  --paper:#fffdf8;
  --ink:#1b2a4a;
  --ink-soft:#33415e;
  --muted:#6d7488;
  --line:#ddd3bf;
  --amber:#e07b39;
  --amber-dark:#c4642a;
  --amber-soft:#fbeedf;
  --navy:#1b2a4a;
  --shadow:0 18px 50px rgba(27,42,74,.12);
  --serif:Georgia,"Times New Roman",serif;
  --sans:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  --radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--cream);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img{display:block;max-width:100%}
button,input,textarea,select{font:inherit}
.skip{position:fixed;left:12px;top:-100px;background:#fff;padding:10px 14px;z-index:999;border:1px solid var(--ink)}
.skip:focus{top:12px}
.shell{width:min(1180px,calc(100% - 48px));margin:auto}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.section-label{font-size:11px;font-weight:800;letter-spacing:.2em;color:var(--amber-dark);margin:0 0 18px;text-transform:uppercase}
.section-label.light{color:#f0b98c}
.section-title{font-family:var(--serif);font-weight:500;font-size:clamp(36px,4.4vw,58px);line-height:1.05;letter-spacing:-.03em;margin:0 0 18px;max-width:760px}
.section-title.small{font-size:clamp(30px,3.4vw,44px)}
.section-title em{font-style:italic;color:var(--amber-dark)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:0 26px;text-decoration:none;border:0;border-radius:999px;font-weight:800;cursor:pointer;transition:transform .18s ease,background .18s ease}
.btn:hover{transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#fff;box-shadow:0 10px 24px rgba(224,123,57,.35)}
.btn-amber:hover{background:var(--amber-dark)}
.btn-outline{background:transparent;color:var(--ink);border:2px solid var(--ink)}
.btn-wide{width:100%}
.btn-call{background:var(--ink);color:#fff;min-height:48px;padding:0 20px;font-size:14px}
.btn-call:hover{background:#24365e}

/* 1. Emergency bar */
.emergency-bar{background:var(--navy);color:#fff;font-size:14px}
.emergency-inner{display:flex;align-items:center;gap:14px;padding:10px 0}
.emergency-bar p{margin:0;flex:1}
.emergency-dot{width:9px;height:9px;border-radius:50%;background:#4ade80;flex:none;animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.emergency-call{color:#ffd9b8;font-weight:800;text-decoration:none;white-space:nowrap}
.emergency-call:hover{text-decoration:underline}

/* 2. Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,241,231,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(27,42,74,.12)}
.nav-shell{min-height:78px;display:flex;align-items:center;gap:26px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--amber);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:22px;font-weight:700;flex:none}
.brand-word{font-size:23px;font-weight:900;letter-spacing:-.04em;white-space:nowrap}
.brand-word em{font-style:normal;color:var(--amber-dark)}
.brand-sub{font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.demo-badge{margin-left:6px;font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);border:1px solid var(--ink-soft);border-radius:999px;padding:5px 11px;white-space:nowrap;opacity:.75}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.main-nav a{font-size:14px;font-weight:650;text-decoration:none;position:relative}
.main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-7px;height:2px;background:var(--amber);transition:right .2s ease}
.main-nav a:hover:after{right:0}
.menu-btn{display:none;background:none;border:0;width:42px;height:42px;padding:8px;margin-left:auto}
.menu-btn i{display:block;height:2px;background:var(--ink);margin:6px 0}

/* 3. Hero */
.hero{padding:88px 0 96px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;right:-12%;top:6%;width:52%;height:80%;background:radial-gradient(circle at 45% 45%,rgba(224,123,57,.16),transparent 62%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;position:relative}
.kicker{font-size:11px;font-weight:800;letter-spacing:.18em;display:flex;align-items:center;gap:12px;margin:0 0 22px;color:var(--amber-dark)}
.kicker span{display:inline-block;width:36px;height:2px;background:var(--amber)}
.hero h1{font-family:var(--serif);font-weight:500;font-size:clamp(48px,5.6vw,80px);line-height:.98;letter-spacing:-.04em;margin:0 0 26px}
.hero h1 em{font-style:italic;color:var(--amber-dark)}
.hero-lede{font-size:18px;line-height:1.68;color:#4a5470;max-width:560px;margin:0 0 32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.trust-row{list-style:none;display:flex;gap:22px;flex-wrap:wrap;margin:34px 0 0;padding:0;font-size:13px;color:var(--ink-soft)}
.trust-row li{display:flex;align-items:center;gap:8px}
.trust-row li:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--amber);flex:none}
.hero-media{position:relative}
.hero-media img{border-radius:calc(var(--radius) + 8px);box-shadow:var(--shadow);aspect-ratio:4/3.4;object-fit:cover;width:100%}
.media-badge{position:absolute;left:22px;bottom:22px;background:#fff;border-radius:999px;padding:11px 18px;font-size:13px;font-weight:800;box-shadow:0 10px 26px rgba(27,42,74,.2);margin:0}

/* 4. Badges strip */
.badges{background:var(--navy);color:#fff;padding:34px 0}
.badges-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.badge strong{display:block;font-size:17px;letter-spacing:-.01em}
.badge span{font-size:13px;color:#b9c2d8}

/* 5. Services */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.service-card{padding:34px 30px;transition:transform .18s ease,box-shadow .18s ease}
.service-card:hover{transform:translateY(-4px)}
.service-card h3{font-family:var(--serif);font-size:25px;font-weight:500;margin:0 0 12px;letter-spacing:-.02em}
.service-card h3:before{content:"";display:block;width:34px;height:4px;border-radius:2px;background:var(--amber);margin-bottom:18px}
.service-card p{margin:0;color:#525b76;line-height:1.65;font-size:15px}

/* 6. Why */
.why{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.why-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
.why-list{list-style:none;margin:34px 0 36px;padding:0;display:grid;gap:24px}
.why-list li{padding-left:30px;position:relative}
.why-list li:before{content:"";position:absolute;left:0;top:6px;width:14px;height:14px;border-radius:50%;background:var(--amber-soft);border:3px solid var(--amber)}
.why-list strong{display:block;font-size:17px;margin-bottom:6px}
.why-list span{color:#525b76;line-height:1.6;font-size:15px}
.why-media img{border-radius:calc(var(--radius) + 8px);box-shadow:var(--shadow);aspect-ratio:4/4.4;object-fit:cover;width:100%}
.media-caption{margin:16px 4px 0;font-size:13px;color:var(--muted);font-style:italic}

/* 7. Areas */
.areas{background:var(--cream-2)}
.areas-list{list-style:none;display:flex;flex-wrap:wrap;gap:12px;margin:34px 0 0;padding:0}
.areas-list li{background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:12px 22px;font-weight:650;font-size:14px}
.areas-list li:hover{border-color:var(--amber);color:var(--amber-dark)}

/* 8. Reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.review-card{padding:32px 30px}
.stars{color:var(--amber);font-size:18px;letter-spacing:.15em;margin:0 0 16px}
.review-text{font-family:var(--serif);font-size:18px;line-height:1.6;margin:0 0 22px;color:var(--ink-soft)}
.review-name{margin:0;font-weight:800;font-size:14px}
.review-name span{font-weight:500;color:var(--muted)}
.fineprint{margin-top:26px;font-size:12px;color:var(--muted)}

/* 9. FAQ */
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
.faq-lede{color:#4a5470;line-height:1.7}
.faq-lede a{font-weight:800}
.faq-list{display:grid;gap:14px}
.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.faq-item summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:18px;padding:22px 26px;font-weight:750;font-size:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-size:24px;color:var(--amber-dark);font-weight:400;flex:none;transition:transform .2s ease}
.faq-item[open] summary:after{transform:rotate(45deg)}
.faq-item p{margin:0;padding:0 26px 24px;color:#525b76;line-height:1.7;font-size:15px}

/* 10. Quote */
.quote{background:var(--navy);color:#fff}
.quote .section-title{color:#fff}
.quote-copy>p{color:#c3cbdf;line-height:1.7}
.quote-points{list-style:none;margin:30px 0 0;padding:0;display:grid;gap:14px}
.quote-points li{padding-left:30px;position:relative;color:#e8ecf5;font-size:15px}
.quote-points li:before{content:"";position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:50%;background:rgba(224,123,57,.25);border:3px solid var(--amber)}
.quote-form-wrap{background:var(--paper);color:var(--ink);border-radius:calc(var(--radius) + 6px);padding:40px;box-shadow:var(--shadow)}
.quote-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:start}
.quote-form label{display:block;font-size:13px;font-weight:750;margin-bottom:18px}
.quote-form input,.quote-form textarea,.quote-form select{width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;padding:13px 14px;outline:none;margin-top:7px;color:var(--ink)}
.quote-form input:focus,.quote-form textarea:focus,.quote-form select:focus{border-color:var(--amber);box-shadow:0 0 0 3px rgba(224,123,57,.18)}
.quote-form textarea{resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-note{font-size:11px;color:var(--muted);margin:14px 0 0;text-align:center}
.quote-success{text-align:center;padding:30px 10px}
.success-check{width:70px;height:70px;border-radius:50%;background:#e8f7ee;color:#1d9d55;font-size:34px;display:flex;align-items:center;justify-content:center;margin:0 auto 22px}
.quote-success h3{font-family:var(--serif);font-weight:500;font-size:30px;margin:0 0 14px;letter-spacing:-.02em}
.quote-success p{color:#525b76;line-height:1.65;margin:0}
.quote-success a{font-weight:800}

/* 11. Footer */
.site-footer{background:#141f38;color:#dfe4f2;padding:64px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr 1fr 1fr;gap:50px}
.footer-brand p{color:#a7b0c9;line-height:1.7;font-size:14px;max-width:320px}
.site-footer .brand-word{color:#fff}
.footer-links strong,.footer-areas strong,.footer-contact strong{display:block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#8b94ad;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.footer-links a{text-decoration:none;font-size:14px;color:#dfe4f2}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-areas p,.footer-contact p{font-size:14px;line-height:1.8;color:#a7b0c9;margin:0}
.footer-phone{display:inline-block;font-size:22px;font-weight:900;text-decoration:none;margin-bottom:12px;color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid #2c3a5e;margin-top:52px;padding-top:24px;font-size:12px;color:#8b94ad}
.footer-bottom p{margin:0}
.disclaimer{font-style:italic;max-width:560px}

/* Responsive */
@media(max-width:900px){
  .section{padding:76px 0}
  .main-nav,.site-header .btn-call{display:none}
  .menu-btn{display:block}
  .main-nav.open{position:absolute;top:100%;left:0;right:0;background:var(--paper);display:flex;flex-direction:column;align-items:flex-start;gap:0;padding:12px 24px 20px;border-bottom:1px solid var(--line);box-shadow:0 18px 34px rgba(27,42,74,.14)}
  .main-nav.open a{padding:13px 0;width:100%;border-bottom:1px solid var(--line);font-size:15px}
  .main-nav.open a:last-child{border-bottom:0}
  .hero{padding:60px 0 70px}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .badges-grid{grid-template-columns:1fr;gap:18px}
  .services-grid{grid-template-columns:1fr 1fr}
  .why-grid{grid-template-columns:1fr;gap:48px}
  .why-media{order:-1}
  .reviews-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr;gap:36px}
  .quote-grid{display:grid;grid-template-columns:1fr;gap:44px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column}
}
@media(max-width:600px){
  .shell{width:calc(100% - 32px)}
  .hero h1{font-size:44px}
  .hero-lede{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .emergency-inner{flex-wrap:wrap}
  .emergency-bar p{flex-basis:100%}
  .services-grid{grid-template-columns:1fr}
  .demo-badge{display:none}
  .brand-sub{display:none}
  .field-row{grid-template-columns:1fr}
  .quote-form-wrap{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .media-badge{left:14px;bottom:14px;font-size:12px}
}