:root{
  --primary:#0b6b5a;
  --accent:#f2b03d;
  --muted:#6b7280;
  --bg:#f7f9fb;
  --card:#ffffff;
  --radius:12px;
  --container:1200px;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Inter, "Noto Sans Bengali", system-ui, sans-serif;color:#122; background:var(--bg);}
.container{max-width:var(--container);margin:0 auto;padding:0 18px;}
a{color:inherit;text-decoration:none}

/* Header */
.site-header{background:linear-gradient(90deg,var(--primary),#0a5b4d);color:#fff;position:sticky;top:0;z-index:60;box-shadow:0 2px 10px rgba(0,0,0,0.08)}
.header-grid{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;gap:12px;align-items:center}
.logo{width:60px;height:60px;border-radius:8px;object-fit:cover}
.brand h1{font-size:18px;margin:0}
.tag{font-size:13px;margin-top:2px;opacity:0.95}
.nav{position:relative}
.nav-toggle{display:none;background:transparent;border:none;color:#fff;font-size:20px}
.nav-list{display:flex;gap:18px;list-style:none;margin:0;padding:0}
.nav-list a{color:#fff;padding:8px 10px;border-radius:8px;display:inline-block}
.nav-list a:hover{background:rgba(255,255,255,0.08)}

/* Hero / Slider */
.hero{padding:18px 0 40px}
.slider{position:relative;overflow:hidden;border-radius:16px;background:#000;height:360px}
.slides{display:flex;transition:transform .6s ease}
.slide{min-width:100%;height:360px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.slide img{width:100%;height:100%;object-fit:cover;display:block;filter:contrast(.95) saturate(.95)}
.slider-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,0.4);color:#fff;border:none;padding:8px 12px;border-radius:8px;cursor:pointer;z-index:10}
.slider-btn.prev{left:12px}
.slider-btn.next{right:12px}
.dots{position:absolute;left:50%;transform:translateX(-50%);bottom:12px;display:flex;gap:8px;z-index:10}
.dots button{width:10px;height:10px;border-radius:50%;border:none;background:rgba(255,255,255,0.5);cursor:pointer}
.dots button.active{background:var(--accent);transform:scale(1.1)}

.hero-content{position:relative;padding:18px 0 22px;text-align:center;margin-top:16px}
.hero-content h2{font-size:26px;margin:8px 0}
.hero-content p{color:var(--muted);margin-bottom:12px}
.hero-actions{display:flex;gap:12px;justify-content:center}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;border:none;cursor:pointer;font-weight:600}
.btn.small{padding:8px 10px;font-size:14px}
.btn.primary{background:var(--primary);color:#fff}
.btn.outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}
.btn.primary:hover{opacity:.95}

/* Sections */
.section{padding:44px 0}
.section-title{font-size:22px;margin-bottom:6px}
.section-sub{color:var(--muted);margin-bottom:18px}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 360px;gap:24px;align-items:center}
.about-image img{width:100%;height:100%;object-fit:cover;border-radius:12px}

/* Products grid */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:18px}
.product-card{background:var(--card);padding:14px;border-radius:12px;box-shadow:0 6px 18px rgba(15,23,42,0.06);display:flex;flex-direction:column;gap:12px}
.product-card img{width:100%;height:180px;object-fit:cover;border-radius:8px}
.price-order{display:flex;justify-content:space-between;align-items:center;margin-top:auto}
.price{font-weight:700;color:var(--primary)}

/* Promo */
.promo-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.promo-card{display:flex;background:var(--card);border-radius:12px;overflow:hidden;align-items:stretch}
.promo-card img{width:50%;height:100%;object-fit:cover}
.promo-text{padding:12px}

/* Gallery */
.gallery-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.gallery-grid img{width:100%;height:110px;object-fit:cover;border-radius:8px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 420px;gap:30px;align-items:start}
.contact-info{list-style:none;padding:0;margin:8px 0;color:var(--muted)}
.contact-form{background:var(--card);padding:14px;border-radius:12px;box-shadow:0 6px 18px rgba(15,23,42,0.06)}
.contact-form label{display:block;margin-bottom:8px;font-size:14px}
.contact-form input,.contact-form textarea{width:100%;padding:10px;border-radius:8px;border:1px solid #e6e9ee;resize:vertical}

/* Footer */
.site-footer{background:#0a4f43;color:#fff;padding:18px 0;margin-top:30px}
.footer-grid{display:flex;justify-content:space-between;align-items:center}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(3,7,18,0.6);display:none;align-items:center;justify-content:center;padding:20px;z-index:120}
.modal[aria-hidden="false"]{display:flex}
.modal-content{background:var(--card);padding:18px;border-radius:12px;width:100%;max-width:520px;box-shadow:0 12px 40px rgba(2,6,23,0.2)}
.modal-close{background:transparent;border:none;float:right;font-size:18px;cursor:pointer}

/* Responsive */
@media (max-width:1024px){
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:repeat(3,1fr)}
  .about-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .nav-list{display:none;position:absolute;right:10px;top:56px;background:rgba(255,255,255,0.98);color:#000;padding:12px;border-radius:8px;flex-direction:column;box-shadow:0 6px 18px rgba(0,0,0,0.12)}
  .nav-toggle{display:block}
  .slider{height:220px}
  .slide{height:220px}
  .product-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .promo-grid{grid-template-columns:1fr;gap:12px}
}

/* small helpers */
.text-muted{color:var(--muted)}