/* ACS Refrigeration — design system */
:root{
  --bg:#fbfcfe; --fg:#0f1a3a; --muted:#5b6480;
  --primary:#1e4fb8; --primary-glow:#3a8fff; --deep:#0e1f4d;
  --ice:#eaf3ff; --card:#fff; --border:#e3eaf5;
  --grad-hero:linear-gradient(135deg,#0e1f4d 0%,#1e4fb8 50%,#3a8fff 100%);
  --grad-cool:linear-gradient(180deg,#fbfcfe 0%,#eaf3ff 100%);
  --shadow-soft:0 2px 12px -4px rgba(14,31,77,.12);
  --shadow-card:0 8px 30px -10px rgba(14,31,77,.18);
  --shadow-glow:0 20px 60px -20px rgba(30,79,184,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;color:var(--fg);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Montserrat',sans-serif;letter-spacing:-.02em;color:var(--deep);font-weight:700;line-height:1.15}
a{color:var(--primary);text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:80px;gap:24px}
.logo img{height:64px;width:auto}
.main-nav{display:flex;gap:4px}
.main-nav a{padding:8px 16px;border-radius:6px;font-weight:500;font-size:14px;color:#3a4566;transition:.2s}
.main-nav a:hover,.main-nav a.active{background:var(--ice);color:var(--primary);font-weight:600}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:9999px;font-weight:600;font-size:14px;border:none;cursor:pointer;transition:transform .2s}
.btn:hover{transform:scale(1.05)}
.btn-primary{background:var(--grad-hero);color:#fff;box-shadow:var(--shadow-soft)}
.btn-light{background:#fff;color:var(--primary);box-shadow:var(--shadow-glow)}
.btn-outline{border:2px solid rgba(255,255,255,.4);color:#fff;background:transparent}
.phone-btn{font-size:13px;padding:10px 20px}
.burger{display:none;background:none;border:none;font-size:28px;color:var(--fg);cursor:pointer}

/* Hero */
.hero{position:relative;overflow:hidden;color:#fff}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(to right,rgba(14,31,77,.95),rgba(14,31,77,.8) 50%,rgba(14,31,77,.4))}
.hero-inner{position:relative;padding:120px 0;max-width:680px}
.eyebrow{display:inline-block;padding:6px 16px;border-radius:9999px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.1);font-size:11px;letter-spacing:.15em;text-transform:uppercase;font-weight:600;backdrop-filter:blur(6px)}
.hero h1{font-size:clamp(36px,5vw,68px);margin-top:24px;color:#fff}
.hero h1 .accent{color:var(--primary-glow)}
.hero p{margin-top:24px;font-size:18px;opacity:.85;max-width:540px}
.hero-cta{margin-top:40px;display:flex;flex-wrap:wrap;gap:16px}

/* Sections */
.section{padding:80px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 56px}
.section-head .label{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--primary);font-weight:600}
.section-head h2{font-size:clamp(28px,3.5vw,44px);margin-top:12px}
.section-head p{margin-top:16px;color:var(--muted)}
.bg-ice{background:var(--ice)}
.bg-cool{background:var(--grad-cool);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}

/* Page hero (smaller) */
.page-hero{background:var(--grad-hero);color:#fff;padding:96px 0}
.page-hero .label{color:var(--primary-glow)}
.page-hero h1{color:#fff;font-size:clamp(36px,5vw,60px);margin-top:12px}
.page-hero p{margin-top:20px;font-size:18px;opacity:.85;max-width:600px}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding:48px 0;text-align:center}
.stat-num{font-family:'Montserrat',sans-serif;font-size:36px;font-weight:700;color:var(--deep)}
.stat-lbl{font-size:13px;color:var(--muted);margin-top:4px}
.stat-ico{font-size:28px;color:var(--primary);margin-bottom:8px}

/* Cards grid */
.grid{display:grid;gap:24px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:linear-gradient(145deg,#fff,#f4f8ff);padding:32px;border-radius:20px;box-shadow:var(--shadow-soft);transition:.3s}
.card:hover{box-shadow:var(--shadow-card);transform:translateY(-4px)}
.card .ico{display:inline-flex;width:56px;height:56px;align-items:center;justify-content:center;border-radius:14px;background:var(--grad-hero);color:#fff;font-size:24px;box-shadow:var(--shadow-soft)}
.card h3{margin-top:20px;font-size:20px}
.card p{margin-top:8px;color:var(--muted);font-size:14px}

/* Product preview */
.product-card{background:#fff;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-soft);transition:.3s}
.product-card:hover{box-shadow:var(--shadow-card)}
.product-card img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform .7s}
.product-card:hover img{transform:scale(1.05)}
.product-card .pad{padding:24px}
.product-card h3{font-size:18px}
.product-card p{margin-top:8px;color:var(--muted);font-size:14px}

/* CTA section */
.cta-section{background:var(--grad-hero);color:#fff;padding:96px 0;text-align:center;position:relative;overflow:hidden}
.cta-section h2{color:#fff;font-size:clamp(28px,4vw,48px)}
.cta-section p{margin-top:16px;opacity:.85;font-size:18px}

/* Produits family */
.family{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:80px}
.family.reverse>div:first-child{order:2}
.family img{border-radius:24px;box-shadow:var(--shadow-card);width:100%;max-height:400px;object-fit:contain;background:#fff;}
.family h2{font-size:clamp(26px,3vw,36px)}
.family p{margin-top:16px;color:var(--muted)}
.check-list{margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.check-list li{display:flex;gap:8px;font-size:14px;align-items:flex-start}
.check-list li::before{content:"✓";color:var(--primary);font-weight:700;flex-shrink:0}

/* Contact */
.contact-grid{display:grid;grid-template-columns:2fr 3fr;gap:48px}
.coord-card{background:linear-gradient(145deg,#fff,#f4f8ff);padding:32px;border-radius:20px;box-shadow:var(--shadow-soft)}
.coord-row{display:flex;gap:14px;align-items:flex-start;margin-top:20px}
.coord-row .ico-sm{width:40px;height:40px;border-radius:10px;background:var(--ice);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;font-size:18px}
.coord-row small{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:block}
.coord-row b{color:var(--deep);font-weight:500}
.hours-card{background:var(--deep);color:#fff;padding:32px;border-radius:20px;margin-top:24px}
.hours-card h3{color:#fff}
.hours-card p{margin-top:8px;font-size:14px;opacity:.8}
.hours-card .urgent{color:var(--primary-glow);margin-top:16px;font-size:14px}
.contact-form{background:#fff;padding:32px;border-radius:20px;box-shadow:var(--shadow-card)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.contact-form label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;margin-top:16px}
.contact-form input,.contact-form textarea{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:10px;font-family:inherit;font-size:14px;background:var(--bg)}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--primary);border-color:transparent}
.alert{padding:14px 18px;border-radius:10px;margin-bottom:16px;font-size:14px}
.alert.ok{background:#e6f7ed;color:#0a6e3a;border:1px solid #bce5cd}
.alert.err{background:#fde9e9;color:#9a1c1c;border:1px solid #f5c2c2}

/* Footer */
.site-footer{background:var(--deep);color:#fff;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:48px}
.site-footer h3,.site-footer h4{color:#fff}
.ft-title{font-size:22px;margin-bottom:12px}
.site-footer p{font-size:14px;opacity:.75;margin-top:12px;line-height:1.7}
.site-footer h4{color:var(--primary-glow);font-size:15px;margin-bottom:14px}
.site-footer ul li{margin-top:8px;font-size:14px;opacity:.8}
.site-footer a{color:inherit}
.site-footer a:hover{color:var(--primary-glow)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:20px 24px;border-top:1px solid rgba(255,255,255,.1);font-size:12px;opacity:.6}

/* WhatsApp */
.whatsapp-fab{position:fixed;bottom:24px;right:24px;width:60px;height:60px;border-radius:50%;background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(37,211,102,.5);z-index:60;transition:all .3s ease;animation:pulse-wa 2s infinite;}
.whatsapp-fab:hover{transform:scale(1.1);animation:none;background:#20b958;}
@keyframes pulse-wa {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,.6); }
  70% { box-shadow: 0 0 0 20px rgba(37,211,102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102, 0); }
}

/* Responsive */
@media (max-width: 960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .family,.family.reverse>div:first-child{grid-template-columns:1fr;order:0}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 720px){
  .main-nav{display:none;position:absolute;top:80px;left:0;right:0;background:#fff;flex-direction:column;padding:16px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-soft)}
  .main-nav.open{display:flex}
  .phone-btn{display:none}
  .burger{display:block}
  .grid-3,.grid-2,.form-row,.check-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-inner{padding:80px 0}
  .section{padding:56px 0}
}