:root{--green:#12805a;--muted:#6b7280;--bg:#f6f9f7;--text:#1e1e1e}
*{box-sizing:border-box}
html{font-family:'Vazir', Tahoma, sans-serif;scroll-behavior:smooth}
body{margin:0;color:var(--text);background:var(--bg);line-height:1.75}
a{color:var(--green);text-decoration:none}
.container{width:min(1100px, 92%);margin-inline:auto}
.site-header{background:#fff;border-bottom:1px solid #e5e7eb;position:sticky;top:0;z-index:10}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.brand{display:flex;gap:12px;align-items:center;color:inherit}
.logo{width:44px;height:44px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.08)}
.brand-text small{display:block;color:var(--muted);font-size:12px}
.nav a{margin-left:16px}
.btn-cart{padding:8px 12px;border:1px solid var(--green);border-radius:8px}
.hero{padding:56px 0;text-align:center}
.hero h1{font-size:32px;margin:0 0 10px}
.hero-cta{display:flex;gap:12px;justify-content:center;margin-top:16px}
.btn{background:var(--green);color:#fff;padding:10px 16px;border-radius:10px;border:none;display:inline-block}
.btn-sm{padding:6px 10px;border-radius:8px}
.btn-outline{background:#fff;color:var(--green);border:1px solid var(--green)}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:36px 0}
.feature{background:#fff;padding:18px;border-radius:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.card{background:#fff;border-radius:12px;padding:12px}
.product-card img{width:100%;aspect-ratio:1.2/1;object-fit:cover;border-radius:8px}
.price{font-weight:bold;margin-top:8px}
.price-lg{font-size:24px;font-weight:800;margin:8px 0}
.product-detail{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;margin:24px 0}
.product-detail img{width:100%;border-radius:12px}
.form{display:grid;gap:12px;max-width:520px}
.form input,.form textarea{width:100%;padding:10px;border:1px solid #e5e7eb;border-radius:10px;background:#fff}
.alert{padding:12px;border-radius:10px}
.alert.success{background:#ecfdf5;border:1px solid #a7f3d0}
.cart-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}
.cart-table th,.cart-table td{padding:10px;border-bottom:1px solid #f1f1f1;text-align:right}
.note{color:var(--muted);margin-top:8px}
.site-footer{margin-top:40px;padding:24px 0;color:var(--muted);text-align:center}
@media (max-width:800px){
  .product-detail{grid-template-columns:1fr}
}


/* --- Pro polish --- */
.hero{position:relative;background:linear-gradient(rgba(0,0,0,.55), rgba(0,0,0,.45)), url('/assets/img/solar-bg.jpg') center/cover no-repeat; color:#fff; padding:140px 0; text-align:center; overflow:hidden; background-attachment:fixed;}
.hero h1{font-size:36px;margin:0 0 10px;letter-spacing:.2px}
.hero p{max-width:780px;margin:8px auto 0;opacity:.95}
.hero-cta .btn{box-shadow:0 6px 18px rgba(0,0,0,.18)}
/* subtle card hover */
.card{transition:transform .25s ease, box-shadow .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,0,0,.08)}
/* animate-in base states (AOS handles visibility) */
[data-aos]{will-change:transform,opacity}
/* parallax helper */
.parallax-wrap{position:relative;overflow:hidden}
.parallax-item{will-change:transform}