/* AGK HVAC Solutions - Static Site */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --blue:#0b5ed7;--blue-dark:#0a3d91;--blue-light:#e8f1ff;
  --white:#ffffff;--gray:#f7f9fc;--text:#1a2540;--muted:#5b6b85;
  --green:#25d366;--radius:12px;--shadow:0 8px 30px rgba(11,94,215,.08);
}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);line-height:1.6;background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-dark)}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.25;color:var(--text);font-weight:800}
h1{font-size:clamp(2rem,4.5vw,3.25rem)}
h2{font-size:clamp(1.6rem,3vw,2.3rem);margin-bottom:.5rem}
h3{font-size:1.15rem}
p{color:var(--muted)}
section{padding:70px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 40px}
.section-head p{margin-top:8px}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid #eaeef5}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--blue-dark);font-size:1.15rem}
.logo-mark{width:36px;height:36px;background:linear-gradient(135deg,var(--blue),var(--blue-dark));border-radius:10px;display:grid;place-items:center;color:#fff;font-weight:800}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--text);font-weight:600;font-size:.95rem}
.nav-links a.active,.nav-links a:hover{color:var(--blue)}
.nav-cta{display:flex;gap:8px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:999px;font-weight:700;font-size:.92rem;border:0;cursor:pointer;transition:transform .15s ease,box-shadow .2s ease,background .2s ease;white-space:nowrap}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(11,94,215,.25)}
.btn-whatsapp{background:var(--green);color:#fff}
.btn-whatsapp:hover{background:#1fb457;color:#fff;transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--blue);border:2px solid var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-lg{padding:16px 28px;font-size:1.05rem}
.hamburger{display:none;background:none;border:0;font-size:1.6rem;color:var(--text);cursor:pointer}

/* Hero */
.hero{position:relative;background:linear-gradient(135deg,#0a3d91 0%,#0b5ed7 60%,#1e88e5 100%);color:#fff;padding:80px 0 90px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.12),transparent 50%),radial-gradient(circle at 10% 90%,rgba(255,255,255,.08),transparent 40%)}
.hero .container{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{color:#fff}
.hero p.lead{color:rgba(255,255,255,.9);font-size:1.15rem;margin:16px 0 28px;max-width:560px}
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero-visual{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:20px;padding:28px;backdrop-filter:blur(8px)}
.hero-visual svg{width:100%;height:auto}
.badges{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
.badge{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);padding:8px 14px;border-radius:999px;font-size:.85rem;font-weight:600}

/* Trust */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.trust-item{background:var(--gray);border:1px solid #eef2f8;padding:20px;border-radius:var(--radius);font-weight:600;color:var(--text);display:flex;align-items:center;gap:10px}
.trust-item .check{color:var(--blue);font-weight:800}

/* Services */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{background:#fff;border:1px solid #eef2f8;border-radius:16px;padding:24px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;display:flex;flex-direction:column}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d9e6fb}
.service-icon{width:52px;height:52px;border-radius:12px;background:var(--blue-light);color:var(--blue);display:grid;place-items:center;margin-bottom:14px;font-size:1.5rem}
.service-card h3{margin-bottom:8px}
.service-card p{font-size:.95rem;flex:1;margin-bottom:14px}
.service-card .card-ctas{display:flex;gap:8px}
.service-card .card-ctas .btn{padding:8px 14px;font-size:.85rem;flex:1;justify-content:center}

/* Emergency */
.emergency{background:linear-gradient(135deg,var(--blue-dark),var(--blue));color:#fff;text-align:center}
.emergency h2{color:#fff}
.emergency p{color:rgba(255,255,255,.9);max-width:620px;margin:12px auto 26px;font-size:1.05rem}
.emergency .hero-ctas{justify-content:center}

/* Testimonials */
.testimonials{background:var(--gray)}
.test-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.test-card{background:#fff;padding:24px;border-radius:16px;box-shadow:var(--shadow)}
.stars{color:#f5a623;letter-spacing:2px;margin-bottom:10px}
.test-card p{color:var(--text);font-style:italic;margin-bottom:12px}
.test-name{font-weight:700;color:var(--blue-dark);font-size:.95rem}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid #eef2f8;border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:18px 22px;font-size:1rem;font-weight:700;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q::after{content:"+";font-size:1.4rem;color:var(--blue);transition:transform .2s}
.faq-item.open .faq-q::after{content:"−"}
.faq-a{padding:0 22px 18px;color:var(--muted);display:none}
.faq-item.open .faq-a{display:block}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px}
.contact-info-card{background:var(--gray);padding:28px;border-radius:16px}
.info-block{margin-bottom:18px}
.info-block h4{color:var(--blue-dark);margin-bottom:4px;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px}
.info-block p, .info-block a{color:var(--text);font-weight:600}
.contact-form{background:#fff;padding:28px;border-radius:16px;box-shadow:var(--shadow)}
.form-row{margin-bottom:14px}
.form-row label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
.form-row input,.form-row textarea{width:100%;padding:12px 14px;border:1.5px solid #e2e8f2;border-radius:10px;font-size:.95rem;font-family:inherit;transition:border-color .2s}
.form-row input:focus,.form-row textarea:focus{outline:0;border-color:var(--blue)}
.form-row textarea{min-height:120px;resize:vertical}
.form-msg{margin-top:12px;font-weight:600;color:#22a05a;display:none}
.map-placeholder{margin-top:26px;background:var(--blue-light);border:2px dashed #b6d2f5;border-radius:16px;height:280px;display:grid;place-items:center;color:var(--blue-dark);font-weight:600;text-align:center;padding:20px}

/* Page hero (inner pages) */
.page-hero{background:linear-gradient(135deg,#0a3d91,#0b5ed7);color:#fff;padding:60px 0;text-align:center}
.page-hero h1{color:#fff}
.page-hero p{color:rgba(255,255,255,.85);margin-top:8px}

/* Content pages */
.prose{max-width:820px;margin:0 auto}
.prose h2{margin-top:32px;font-size:1.5rem}
.prose h3{margin-top:20px;font-size:1.15rem;color:var(--blue-dark)}
.prose p, .prose ul{margin-top:10px;color:var(--text)}
.prose ul{padding-left:22px}
.prose li{margin-bottom:6px}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.about-visual{background:var(--blue-light);border-radius:20px;padding:40px;text-align:center}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.stat{text-align:center;background:#fff;padding:20px;border-radius:12px;box-shadow:var(--shadow)}
.stat-num{font-size:2rem;font-weight:800;color:var(--blue)}
.stat-label{color:var(--muted);font-size:.9rem;font-weight:600}

/* Footer */
.site-footer{background:#0a1a3a;color:#c8d3e6;padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
.site-footer a{color:#c8d3e6;font-size:.94rem;display:block;padding:4px 0}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid #1e2f55;margin-top:36px;padding-top:20px;text-align:center;font-size:.88rem;color:#8fa0bf}

/* Floating actions */
.float-call,.float-wa{position:fixed;z-index:99;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:1.6rem;box-shadow:0 8px 24px rgba(0,0,0,.25);transition:transform .2s}
.float-call{bottom:24px;left:24px;background:var(--blue)}
.float-wa{bottom:24px;right:24px;background:var(--green)}
.float-call:hover,.float-wa:hover{transform:scale(1.08);color:#fff}

/* Animations */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* Responsive */
@media (max-width:960px){
  .hero .container{grid-template-columns:1fr;gap:28px}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .test-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;padding:16px 20px;border-bottom:1px solid #eaeef5;box-shadow:0 12px 24px rgba(0,0,0,.06)}
  .nav-links.open{display:flex}
  .nav-links a{padding:8px 0;width:100%}
  .hamburger{display:block}
  .nav-cta .btn{padding:9px 14px;font-size:.85rem}
  .nav-cta .btn span.label{display:none}
  .services-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  section{padding:50px 0}
}