:root{
  --accent:#0a3d62;          /* primary brand color */
  --accent-2:#0f5a8a;       /* secondary */
  --muted:#6b7280;
  --card:#ffffff;
  --bg:#f6f8fa;
  --glass: rgba(255,255,255,0.6);
  --shadow: 0 8px 24px rgba(11,27,39,0.06);
}

/* Reset modern-ish */
*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  color:#0b1220;
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.45;
  -webkit-text-size-adjust:100%;
}

/* Top bar */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 28px;background:linear-gradient(90deg,var(--accent),var(--accent-2));
  color:#fff;position:sticky;top:0;z-index:60;backdrop-filter: blur(6px);
  box-shadow: 0 6px 18px rgba(10,61,98,0.08);
}
.brand{display:flex;align-items:center;gap:12px;font-weight:700}
.brand .logo{
  width:44px;height:44px;border-radius:8px;background:#fff22a33;display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px
}
.brand h1{font-size:18px;letter-spacing:0.2px;margin:0}

nav a{color:rgba(255,255,255,0.95);text-decoration:none;margin-left:18px;font-weight:600}
nav a:hover{opacity:0.92;text-decoration:underline}

/* Hero / Slider */
.hero-wrap{max-height:700px;overflow:hidden;position:relative;background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.slider{
  display:flex;height:80vh;min-height:500px;max-height:700px;transition:transform 0.9s cubic-bezier(.22,.95,.3,1);
}
.slide{
  min-width:100%;position:relative;display:grid;align-items:center;justify-items:center;padding:60px;gap:20px;background:linear-gradient(135deg,rgba(10,61,98,0.9),rgba(15,90,138,0.8));
}
.slide img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;filter:brightness(0.4)}
.slide .container{position:relative;z-index:3;max-width:1200px;color:#fff;text-align:center;padding:0 20px}
.kicker{display:inline-block;background:rgba(255,255,255,0.15);padding:10px 20px;border-radius:25px;font-weight:600;margin-bottom:20px;font-size:14px;letter-spacing:1px}
.hero-title{font-size:clamp(32px,5vw,56px);line-height:1.1;margin:0 0 20px;font-weight:800;text-shadow:0 2px 10px rgba(0,0,0,0.3)}
.hero-lead{color:rgba(255,255,255,0.95);max-width:800px;font-size:18px;line-height:1.6;margin:0 auto;text-shadow:0 1px 5px rgba(0,0,0,0.3)}
.hero-buttons{display:flex;gap:16px;justify-content:center;margin-top:30px;flex-wrap:wrap}
.hero-buttons .btn{background:var(--accent);color:#fff;padding:14px 28px;border-radius:8px;border:none;cursor:pointer;font-weight:700;font-size:16px;transition:all 0.3s ease;z-index:20;position:relative;box-shadow:0 4px 15px rgba(10,61,98,0.4)}
.hero-buttons .btn:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(10,61,98,0.5);background:var(--accent-2)}
.hero-buttons .btn.secondary{background:transparent;color:#fff;border:2px solid rgba(255,255,255,0.9);backdrop-filter:blur(8px);box-shadow:0 4px 15px rgba(0,0,0,0.2);padding:14px 28px}
.hero-buttons .btn.secondary:hover{background:rgba(255,255,255,0.2);border-color:#fff;transform:translateY(-3px)}

/* slider controls */
.controls{position:absolute;right:24px;bottom:22px;display:flex;gap:12px;z-index:40}
.dot{width:10px;height:10px;border-radius:999px;background:rgba(255,255,255,0.4);cursor:pointer}
.dot.active{background:#fff}
.arrow{background:rgba(255,255,255,0.08);border-radius:8px;padding:10px;display:grid;place-items:center;cursor:pointer;border:1px solid rgba(255,255,255,0.06)}

/* Main content */
main{max-width:1200px;margin:36px auto;padding:0 20px}
.section{background:transparent;padding:60px 0;position:relative}
.section:nth-child(even){background:linear-gradient(135deg,rgba(10,61,98,0.02),rgba(15,90,138,0.02))}
.section h2{font-size:32px;margin:0 0 24px;color:var(--accent);font-weight:800;position:relative;display:inline-block}
.section h2::after{content:'';position:absolute;bottom:-8px;left:0;width:60px;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:2px}
.section-header{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:32px}
.section-subtitle{color:var(--muted);font-size:16px;font-weight:500;opacity:0.8}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 420px;gap:28px;align-items:center}
.about-card{background:var(--card);padding:18px;border-radius:12px;box-shadow:var(--shadow)}
.about-list{display:flex;flex-direction:column;gap:14px}
.about-list li{list-style:none;color:var(--muted)}

/* Products */
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.product-card{background:var(--card);border-radius:10px;overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.product-card:hover{transform:translateY(-8px);box-shadow:0 20px 40px rgba(11,27,39,0.08)}
.product-card img{width:100%;height:180px;object-fit:cover}
.product-info{padding:14px}
.product-info h3{margin:0;font-size:16px;color:var(--accent)}
.product-info p{margin:8px 0 0;color:var(--muted);font-size:14px}
.product-actions{display:flex;gap:8px;margin-top:12px}
.btn{background:var(--accent);color:#fff;padding:12px 20px;border-radius:8px;border:none;cursor:pointer;font-weight:700;font-size:15px;transition:transform 0.2s,box-shadow 0.2s;z-index:10;position:relative}
.btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(10,61,98,0.3)}
.btn.secondary{background:transparent;color:var(--accent);border:1px solid rgba(10,61,98,0.12)}
.btn.secondary:hover{background:rgba(10,61,98,0.05)}

/* Modal */
.modal-backdrop{position:fixed;inset:0;background:rgba(2,6,23,0.5);display:none;align-items:center;justify-content:center;z-index:80;padding:20px}
.modal{background:#fff;border-radius:10px;max-width:900px;width:100%;max-height:90vh;overflow:hidden;box-shadow:0 40px 80px rgba(11,27,39,0.2)}
.modal .modal-body{display:flex;gap:0;align-items:stretch;max-height:90vh;overflow-y:auto}
.modal .modal-body img{width:50%;height:auto;max-height:90vh;object-fit:contain;object-position:center;background:#f8f9fa}
.modal .modal-body .meta{padding:25px;flex:1;overflow-y:auto}
.close-x{position:absolute;right:12px;top:12px;background:rgba(0,0,0,0.06);border-radius:8px;padding:6px;cursor:pointer;z-index:10;width:32px;height:32px;display:flex;align-items:center;justify-content:center;font-size:18px}

/* Contact Form */
.contact-card{background:var(--card);padding:30px;border-radius:12px;box-shadow:var(--shadow);max-width:900px;margin:auto}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-row.single{grid-template-columns:1fr}
label{display:block;font-size:14px;margin-bottom:8px;color:var(--accent);font-weight:600}
input[type=text],input[type=email],input[type=tel],textarea,input[type=file]{width:100%;padding:12px;border-radius:8px;border:1px solid #e6e9ee;font-size:15px}
textarea{min-height:140px;resize:vertical}
.small{font-size:13px;color:var(--muted);margin-top:6px}

/* Footer */
footer{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;
  padding:60px 20px 30px;
  margin-top:80px;
}
.footer-content{
  max-width:1200px;
  margin:0 auto;
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand h3{
  font-size:20px;
  margin:0 0 12px;
  font-weight:700;
}
.footer-brand p{
  margin:0 0 20px;
  opacity:0.9;
  line-height:1.6;
}
.footer-section h4{
  font-size:16px;
  margin:0 0 16px;
  font-weight:600;
  color:#fff;
}
.footer-section ul{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-section li{
  margin-bottom:10px;
}
.footer-section a{
  color:rgba(255,255,255,0.8);
  text-decoration:none;
  font-size:14px;
  transition:color 0.2s;
}
.footer-section a:hover{
  color:#fff;
  text-decoration:underline;
}
.footer-bottom{
  max-width:1200px;
  margin:40px auto 0;
  padding-top:30px;
  border-top:1px solid rgba(255,255,255,0.1);
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:20px;
}
.footer-bottom p{
  margin:0;
  font-size:14px;
  opacity:0.8;
}

/* Utilities */
.row{display:flex;gap:12px;align-items:center}
.muted{color:var(--muted)}

/* Responsive */
@media (max-width:1000px){
  .about-grid{grid-template-columns:1fr}
  .slide .container{margin-left:20px}
  .modal .modal-body{flex-direction:column}
  .modal .modal-body img{width:100%;height:260px}
  .footer-content{grid-template-columns:1fr 1fr;gap:30px}
  .slide{padding:40px}
  .hero-title{font-size:clamp(28px,4vw,48px)}
}
@media (max-width:720px){
  nav{display:none}
  .topbar{padding:12px}
  .hero-title{font-size:clamp(24px,3.5vw,40px)}
  .form-row{grid-template-columns:1fr}
  .slide{padding:30px 20px}
  .footer-content{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;text-align:center;gap:15px}
  
  /* Mobile Modal Optimizations */
  .modal-backdrop{padding:10px}
  .modal{max-height:95vh;border-radius:8px}
  .modal .modal-body{flex-direction:column;max-height:95vh}
  .modal .modal-body img{width:100%;height:auto;max-height:50vh;object-fit:contain}
  .modal .modal-body .meta{padding:20px}
  .close-x{width:40px;height:40px;font-size:20px;right:10px;top:10px;background:rgba(0,0,0,0.1)}
  
  /* Mobile Section Header Fix */
  .section-header{flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:24px}
  .section h2{font-size:26px;margin-bottom:4px}
  .section-subtitle{font-size:14px;line-height:1.4}
  
  /* Mobile Banner Optimizations */
  .hero-wrap{max-height:600px}
  .slider{height:70vh;min-height:400px;max-height:600px}
  .kicker{font-size:12px;padding:8px 16px}
  .hero-lead{font-size:16px}
  .hero-buttons{flex-direction:column;align-items:center}
  .hero-buttons .btn{padding:12px 24px;font-size:14px;min-width:200px}
  .hero-buttons .btn.secondary{border:1px solid rgba(255,255,255,0.7);padding:12px 24px}
}