:root{
  --navy:#071a2b;
  --blue:#0879e8;
  --green:#19b85a;
  --text:#122033;
  --muted:#5e6b7b;
  --light:#f4f7fb;
  --white:#fff;
  --border:#e3e9f0;
  --shadow:0 12px 35px rgba(7,26,43,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);line-height:1.6;background:#fff}
a{text-decoration:none;color:inherit}
.container{width:min(1120px,92%);margin:auto}
header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--border)}
.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{font-weight:800;font-size:21px;letter-spacing:.3px;color:var(--navy)}
.logo span{color:var(--blue)}
nav{display:flex;align-items:center;gap:24px;font-weight:600}
nav a:hover{color:var(--blue)}
.nav-actions{display:flex;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:999px;font-weight:700;border:0;cursor:pointer}
.btn-primary{background:var(--blue);color:#fff}
.btn-whatsapp{background:var(--green);color:#fff}
.hero{min-height:640px;display:flex;align-items:center;background:linear-gradient(90deg,rgba(4,18,31,.94) 0%,rgba(4,18,31,.78) 46%,rgba(4,18,31,.18) 100%),url("assets/cctv-hero.png") center/cover no-repeat;color:#fff}
.hero-content{max-width:650px;padding:90px 0}
.eyebrow{display:inline-block;padding:7px 12px;border:1px solid rgba(255,255,255,.3);border-radius:999px;font-weight:700;font-size:13px;letter-spacing:.5px;margin-bottom:16px}
h1{font-size:clamp(42px,6vw,68px);line-height:1.05;margin:0 0 22px}
.hero p{font-size:20px;max-width:620px;color:#e8eef5;margin-bottom:30px}
.hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
.hero-note{margin-top:25px;font-size:15px;color:#d7e2ee}
section{padding:82px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 42px}
.section-head h2{font-size:40px;line-height:1.1;margin:0 0 12px}
.section-head p{color:var(--muted);font-size:18px;margin:0}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:28px;box-shadow:var(--shadow)}
.card h3{margin:12px 0 8px;font-size:22px}
.card p{margin:0;color:var(--muted)}
.icon{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;background:#eaf4ff;color:var(--blue);font-size:25px}
.light{background:var(--light)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.split h2{font-size:42px;line-height:1.1;margin:0 0 16px}
.checks{display:grid;gap:13px;margin:24px 0}
.check{display:flex;gap:10px;align-items:flex-start}
.check b{color:var(--green)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}
.stat{padding:22px;border:1px solid var(--border);border-radius:16px;text-align:center;background:#fff}
.stat strong{display:block;font-size:30px;color:var(--blue)}
.brands{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.brand{padding:14px 20px;border:1px solid var(--border);border-radius:12px;background:#fff;font-weight:700}
.cta{background:var(--navy);color:#fff;text-align:center;border-radius:24px;padding:60px 25px}
.cta h2{font-size:40px;margin:0 0 12px}
.cta p{color:#dbe5ef;font-size:18px;margin:0 auto 25px;max-width:720px}
footer{background:#061421;color:#d6e1eb;padding:55px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:35px}
footer h3{color:#fff;margin-top:0}
footer a{display:block;margin:8px 0;color:#d6e1eb}
.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:35px;padding-top:20px;font-size:14px;color:#9fb0c0}
.mobile-menu{display:none}
.page-hero{background:var(--navy);color:#fff;padding:90px 0;text-align:center}
.page-hero h1{font-size:52px;margin:0 0 10px}
.page-hero p{margin:0;color:#d8e3ed;font-size:18px}
.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.contact-item{padding:26px;border:1px solid var(--border);border-radius:16px;background:#fff}
form{display:grid;gap:14px}
input,textarea{width:100%;padding:14px 16px;border:1px solid var(--border);border-radius:10px;font:inherit}
textarea{min-height:150px;resize:vertical}
@media(max-width:850px){
  nav{display:none}.mobile-menu{display:block}
  .grid{grid-template-columns:1fr 1fr}
  .split,.contact-box{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .hero{min-height:600px}
}
@media(max-width:560px){
  section{padding:60px 0}
  .grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .hero-content{padding:65px 0}
  .hero p{font-size:17px}
  .section-head h2,.split h2,.cta h2{font-size:32px}
  .page-hero h1{font-size:40px}
  .nav-actions{display:none}
  .footer-grid{grid-template-columns:1fr}
}