:root {
  --primary:#0a2540;
  --secondary:#1e3a5f;
  --accent:#00a8ff;
  --bg:#f4f7fb;
  --text:#222;
  --card:#ffffff;
  --muted:#5a6b85;
  --shadow:0 15px 45px rgba(10,37,64,0.12);
  --radius:14px;
  --transition:all .35s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Open Sans', system-ui, -apple-system, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  min-height:100vh;
}
img{max-width:100%;display:block;border-radius:12px}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{width:min(1180px,90%);margin:0 auto}
.section{padding:80px 0}
.section-title{font-family:'Montserrat',sans-serif;font-size:2.2rem;margin-bottom:12px;color:var(--primary)}
.section-sub{color:var(--muted);margin-bottom:24px}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 18px;border-radius:999px;
  border:1px solid transparent;
  font-weight:700;text-transform:uppercase;
  letter-spacing:.6px;
  transition:var(--transition);
  cursor:pointer;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 30px rgba(0,168,255,.25);font-size:1rem;line-height:1.2;white-space:nowrap}
.btn-primary:hover{box-shadow:0 12px 40px rgba(0,168,255,.4);transform:translateY(-2px)}
.btn-outline{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.08)}
.btn-outline:hover{background:rgba(255,255,255,.18);box-shadow:0 12px 30px rgba(0,0,0,.2)}
.btn-ghost{border:1px solid var(--accent);color:var(--accent);background:#fff}
.btn-ghost:hover{background:var(--accent);color:#fff}
.btn svg{width:18px;height:18px;fill:currentColor}
.icon-circle{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:rgba(0,168,255,.12);color:var(--accent);flex-shrink:0}

/* Header */
header{position:sticky;top:0;z-index:1000;backdrop-filter:blur(10px);background:rgba(10,37,64,.9)}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:16px 0;}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-family:'Montserrat',sans-serif;font-weight:800;letter-spacing:.6px;font-size:1.05rem;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:#dfe8f5;position:relative;padding:6px 0;font-weight:600}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--accent);transition:var(--transition)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:12px}

/* Mobile nav */
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer}
.burger span{width:24px;height:2px;background:#fff;border-radius:10px;transition:var(--transition)}
.mobile-menu{display:none;flex-direction:column;gap:14px;padding:18px 0}
.mobile-menu a{color:#dfe8f5;font-weight:600}
header.open .mobile-menu{display:flex}
header.open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
header.open .burger span:nth-child(2){opacity:0}
header.open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Hero */
.hero{position:relative;min-height:78vh;display:grid;place-items:center;overflow:hidden;color:#fff;background:linear-gradient(120deg,rgba(10,37,64,.85),rgba(30,58,95,.85)),url('assets/images/hero.jpg') center/cover no-repeat}
.hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0,rgba(255,255,255,.04) 2px,transparent 2px,transparent 14px);opacity:.6;animation:drift 18s linear infinite}
@keyframes drift{from{background-position:0 0}to{background-position:400px 400px}}
.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));align-items:center;gap:38px;padding:90px 0}
.hero h1{font-family:'Montserrat',sans-serif;font-size:3rem;line-height:1.2;margin-bottom:16px}
.hero p{color:#dfe8f5;font-size:1.05rem;margin-bottom:24px;max-width:520px}
.hero .cta{display:flex;flex-wrap:wrap;gap:14px}
.hero .stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-top:12px}
.stat-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);padding:16px;border-radius:12px;backdrop-filter:blur(6px)}
.stat-card strong{display:block;font-size:1.4rem;color:#fff}
.stat-card span{color:#d4e2f5;font-size:.95rem}

/* Services */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:26px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:var(--transition);border:1px solid #e7edf5;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(10,37,64,.16)}
.card img{height:180px;object-fit:cover;border-radius:0}
.card-content{padding:18px}
.card h3{font-family:'Montserrat',sans-serif;margin-bottom:8px;color:var(--primary)}
.card p{color:var(--muted);margin-bottom:12px}
.badge{display:inline-block;padding:6px 10px;border-radius:999px;background:rgba(0,168,255,.12);color:var(--accent);font-weight:700;font-size:.85rem}

/* Feature grid */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-top:22px}
.feature-card{background:var(--card);border-radius:var(--radius);padding:18px;border:1px solid #e7edf5;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:var(--transition)}
.feature-card::before{content:"";position:absolute;width:70px;height:70px;top:-24px;right:-24px;border-radius:50%;background:rgba(0,168,255,.12)}
.feature-card:hover{transform:translateY(-5px)}
.feature-card h4{font-family:'Montserrat',sans-serif;margin-bottom:6px;color:var(--primary)}
.feature-card p{color:var(--muted);font-size:.95rem}

/* Highlight */
.highlight{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;align-items:center}
.highlight img{width:100%;height:320px;object-fit:cover;box-shadow:var(--shadow)}
.list-check{display:grid;gap:10px;color:var(--muted)}
.list-check li{position:relative;padding-left:26px}
.list-check li::before{content:'✔';position:absolute;left:0;color:var(--accent);font-weight:700}
.illustration-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:18px}
.illustration-card{position:relative;overflow:hidden;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid #e7edf5}
.illustration-card img{width:100%;height:220px;object-fit:cover;transition:transform .5s ease}
.illustration-card:hover img{transform:scale(1.05)}
.illustration-card .caption{position:absolute;left:0;bottom:0;width:100%;padding:14px;background:linear-gradient(180deg,transparent,rgba(10,37,64,.8));color:#fff;font-weight:700;font-family:'Montserrat',sans-serif;letter-spacing:.3px}

/* CTA banner */
.cta-banner{background:linear-gradient(120deg,var(--primary),var(--secondary));color:#fff;border-radius:18px;padding:40px;display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:center;box-shadow:var(--shadow)}
.cta-banner h3{font-family:'Montserrat',sans-serif;font-size:1.7rem;margin-bottom:12px}
.cta-banner p{color:#dbe7f7}
.cta-banner .actions{display:flex;flex-wrap:wrap;gap:12px}

/* Contact preview */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:20px}
.info-card{background:var(--card);padding:18px;border-radius:var(--radius);border:1px solid #e7edf5;box-shadow:var(--shadow);display:flex;gap:12px;align-items:flex-start}
.info-card strong{display:block;color:var(--primary);margin-bottom:6px}
.info-card a{color:var(--accent);font-weight:700}

/* Services page layout */
.service-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:28px;margin-bottom:50px;align-items:center}
.service-row:nth-child(even) .service-text{order:2}
.service-row img{height:340px;object-fit:cover;box-shadow:var(--shadow)}
.service-text h3{font-family:'Montserrat',sans-serif;color:var(--primary);margin-bottom:8px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.chip{padding:8px 12px;border-radius:999px;background:rgba(10,37,64,.08);color:var(--primary);font-weight:700;font-size:.9rem}

/* About */
.about-hero{background:#0f2745;color:#fff;border-radius:18px;padding:40px;box-shadow:var(--shadow)}
.about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px;align-items:center}
.about-grid img{height:360px;object-fit:cover;box-shadow:var(--shadow)}

/* Contact */
.contact-wrapper{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;align-items:start}
form{background:var(--card);padding:22px;border-radius:var(--radius);border:1px solid #e7edf5;box-shadow:var(--shadow);display:grid;gap:14px}
label{font-weight:700;color:var(--primary)}
input,textarea{width:100%;padding:12px;border-radius:10px;border:1px solid #d7e0ec;font-size:1rem;font-family:inherit;transition:var(--transition)}
input:focus,textarea:focus{outline:2px solid rgba(0,168,255,.35);border-color:var(--accent)}
textarea{min-height:140px;resize:vertical}
.map iframe{width:100%;height:100%;min-height:360px;border:0;border-radius:14px;box-shadow:var(--shadow)}

/* Footer */
footer{background:var(--primary);color:#d8e4f7;padding:28px 0;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.footer-title{font-family:'Montserrat',sans-serif;margin-bottom:10px;color:#fff}
.footer-links a{display:block;margin-bottom:6px;color:#d8e4f7}
.footer-links a:hover{color:var(--accent)}
.copyright{margin-top:14px;color:#b8c5dd;font-size:.95rem}

/* Scroll reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:none}

/* Responsive */
@media(max-width:900px){
  .navbar{padding:14px 0}
  .nav-links{display:none}
  .nav-cta .btn-ghost{display:none}
  .burger{display:flex}
  .cta-banner{grid-template-columns:1fr}
}
@media(max-width:720px){
  .hero h1{font-size:2.35rem}
  .section{padding:64px 0}
}