:root{
  --navy:#0b1836;
  --navy-2:#12224a;
  --navy-3:#182c5c;
  --gold:#c9a24b;
  --gold-soft:#e8d5a3;
  --gray:#6c7690;
  --gray-light:#f3f5fa;
  --white:#ffffff;
  --border:#e3e7f1;
  --good:#1f9d55;
  --good-bg:#e4f7ec;
  --bad:#d64545;
  --bad-bg:#fbe7e7;
  --radius:14px;
  --shadow:0 14px 34px -14px rgba(11,24,54,.18);
  --transition:.25s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Vazirmatn',sans-serif;
  color:var(--navy);
  background:var(--white);
  line-height:1.9;
  overflow-x:hidden;
}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}

/* Header */
.header{
  position:sticky;top:0;z-index:100;
  background:linear-gradient(90deg,var(--navy),var(--navy-2));
  box-shadow:0 2px 16px rgba(11,24,54,.28);
}
.header::after{
  content:'';position:absolute;left:0;right:0;bottom:-3px;height:3px;
  background:linear-gradient(90deg,var(--gold),#4a7fd8,#c94a3d);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{font-size:1.25rem;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px}
.logo span{color:var(--gold-soft)}
.nav{display:flex;gap:28px}
.nav a{font-weight:500;color:#c7d0ea;transition:color var(--transition)}
.nav a:hover{color:#fff}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer}
.menu-toggle span{width:26px;height:2px;background:#fff}

/* Buttons */
.btn{
  display:inline-block;padding:14px 30px;border-radius:10px;
  font-weight:700;transition:all var(--transition);
}
.btn-primary{background:linear-gradient(135deg,var(--gold-soft),var(--gold) 60%);color:var(--navy);box-shadow:0 10px 24px -8px rgba(201,162,75,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px -6px rgba(201,162,75,.65)}
.btn-outline{border:1px solid rgba(255,255,255,.3);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline:hover{border-color:var(--gold)}

/* Hero */
.hero{
  position:relative;
  background:linear-gradient(160deg,var(--navy),var(--navy-2) 55%,var(--navy-3));
  color:#fff;padding:90px 0;
}
.hero-inner{display:flex;align-items:center;gap:50px}
.hero-text{flex:1.2}
.hero-text h1{font-size:2.4rem;font-weight:900;line-height:1.5;margin-bottom:20px}
.hero-text p{font-size:1.1rem;color:#d8e2ec;margin-bottom:32px;max-width:560px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-visual{flex:1}
.grating-graphic{
  width:100%;aspect-ratio:1/1;border-radius:var(--radius);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.15);
  box-shadow:0 40px 90px -28px rgba(0,0,0,.55);
  transition:transform .4s ease;
}
.grating-graphic svg{
  display:block;width:100%;height:100%;
}
.hero-visual:hover .grating-graphic{
  transform:translateY(-4px);
}

/* Sections generic */
section{padding:80px 0}
.section-title{
  font-size:1.9rem;font-weight:900;text-align:center;margin-bottom:48px;color:var(--navy);
}
.intro{text-align:center}
.intro-content{max-width:760px;margin:0 auto}
.intro-content h2{font-size:1.7rem;font-weight:800;margin-bottom:16px}
.intro-content p{color:var(--gray)}

/* Cards grid */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cards-grid.five{grid-template-columns:repeat(5,1fr)}
.card,.testi-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;
  box-shadow:0 1px 3px rgba(20,30,60,.05);
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.card:hover,.testi-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--gold-soft)}
.card .icon,.app-card .icon{
  width:52px;height:52px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--navy),var(--navy-3));font-size:1.5rem;margin-bottom:16px;
}
.card h3{font-size:1.1rem;margin-bottom:10px;font-weight:800;color:var(--navy)}
.card p,.testi-card p{color:var(--gray);font-size:.95rem}

/* Products */
.product-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  box-shadow:0 1px 3px rgba(20,30,60,.05);
  transition:transform var(--transition),box-shadow var(--transition);
}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.product-img{
  height:160px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--navy),var(--navy-3));
}
.product-img::after{
  content:'';position:absolute;inset:0;opacity:.55;
  background:repeating-linear-gradient(135deg,var(--gold) 0 8px,transparent 8px 22px);
}
.product-card h3{padding:20px 20px 6px;font-size:1.05rem;font-weight:800;color:var(--navy)}
.product-card p{padding:0 20px 22px;color:var(--gray);font-size:.92rem}

/* Applications */
.app-card{
  text-align:center;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 14px;
  font-weight:700;color:var(--navy);box-shadow:0 1px 3px rgba(20,30,60,.05);
  transition:transform var(--transition),box-shadow var(--transition);
}
.app-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.app-card .icon{margin:0 auto 14px}

/* Compare table */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border);box-shadow:0 1px 3px rgba(20,30,60,.05)}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:16px 18px;text-align:center;border-bottom:1px solid var(--border)}
th{background:#f7f9fd;color:var(--gray);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.02em}
th:first-child,td:first-child{text-align:right;color:var(--navy);font-weight:600}
tbody tr:hover td{background:#fafbff}
td.good,td.bad{font-weight:700}
td .badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:20px;font-size:.82rem;font-weight:700}
td.good .badge{background:var(--good-bg);color:var(--good)}
td.bad .badge{background:var(--bad-bg);color:var(--bad)}

/* Specs */
.specs-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.spec-item{background:#fff;border:1px solid var(--border);border-radius:10px;padding:18px 22px;box-shadow:0 1px 3px rgba(20,30,60,.05)}
.spec-item strong{color:var(--navy)}

/* Gallery */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery-item{
  aspect-ratio:4/3;border-radius:var(--radius);border:1px solid var(--border);position:relative;overflow:hidden;
  background:linear-gradient(150deg,#e7ebf4,#d7ddec);
}
.gallery-item::after{
  content:'';position:absolute;inset:0;opacity:.5;
  background:repeating-linear-gradient(45deg,var(--gold-soft) 0 6px,transparent 6px 18px);
}

/* Contact */
.contact-wrap{display:flex;gap:36px}
.contact-form{flex:1.4;display:flex;flex-direction:column;gap:14px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;box-shadow:0 1px 3px rgba(20,30,60,.05)}
.contact-form input,.contact-form textarea{
  padding:14px 16px;border:1px solid var(--border);border-radius:10px;background:#fbfcfe;
  font-family:inherit;font-size:1rem;resize:vertical;color:var(--navy);
}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--gold);background:#fff}
.contact-form .btn-primary{width:fit-content}
.form-note{color:var(--good);font-weight:600}
.contact-info{flex:1;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;height:fit-content;box-shadow:0 1px 3px rgba(20,30,60,.05)}
.contact-info p{margin-bottom:14px}
.contact-info strong{color:var(--navy)}

/* Footer */
.footer{background:var(--navy);color:#a8b3d6;padding:50px 0 0}
.footer-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;padding-bottom:30px}
.footer .logo{color:#fff}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a:hover{color:var(--gold-soft)}
.footer-bottom{
  text-align:center;padding:18px;border-top:1px solid rgba(255,255,255,.12);font-size:.85rem;color:#8b96bb;
}

/* Animations */
.fade-in{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.fade-in.visible{opacity:1;transform:none}

/* Responsive */
@media (max-width:900px){
  .cards-grid{grid-template-columns:repeat(2,1fr)}
  .cards-grid.five{grid-template-columns:repeat(3,1fr)}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .specs-grid{grid-template-columns:1fr}
  .hero-inner{flex-direction:column}
  .contact-wrap{flex-direction:column}
}
@media (max-width:640px){
  .nav{
    position:fixed;inset:76px 0 0 0;background:#fff;flex-direction:column;
    padding:30px;gap:22px;transform:translateX(100%);transition:transform var(--transition);
  }
  .nav.open{transform:translateX(0)}
  .menu-toggle{display:flex}
  .cards-grid,.cards-grid.five{grid-template-columns:1fr 1fr}
  .gallery-grid{grid-template-columns:1fr}
  .hero-text h1{font-size:1.8rem}
}