*{margin:0;padding:0;box-sizing:border-box;font-family:Arial, sans-serif;}
body{color:#222;background:#fff;line-height:1.6;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
.container{max-width:1240px;margin:0 auto;padding:0 20px;}

/* Header */
header{border-bottom:1px solid #eee;position:sticky;top:0;background:#fff;z-index:99;}
.header-wrap{display:flex;justify-content:space-between;align-items:center;padding:16px 0;}
.nav-main ul{display:flex;gap:28px;}
.nav-main a:hover{color:#0066cc;}
.header-icons{display:flex;gap:20px;font-size:20px;cursor:pointer;}

/* Banner */
.banner{width:100%;height:420px;background:#f5f7fa;display:flex;align-items:center;justify-content:center;color:#000;font-size:28px;margin-bottom:60px;}

/* Product Grid */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:30px;margin:40px 0;}
.product-card{border:1px solid #eee;border-radius:6px;overflow:hidden;transition:0.2s;}
.product-card:hover{box-shadow:0 4px 12px rgba(0,0,0,0.08)}
.product-card img{width:100%;height:240px;object-fit:cover;cursor:pointer;}
.product-info{padding:16px;}
.product-info h3{font-size:16px;margin-bottom:8px;}
.product-price{color:#c0392b;font-weight:bold;margin-bottom:12px;}
.card-buttons{display:flex;gap:8px;margin-top:10px;}
.card-buttons button{padding:7px 12px;border:none;border-radius:4px;cursor:pointer;}
.btn-cart{background:#0066cc;color:#fff;}
.btn-wish{background:#eee;}

/* Pagination */
.pagination{display:flex;gap:10px;margin:40px 0;justify-content:center;}
.pagination button{padding:8px 14px;border:1px solid #ddd;background:#fff;cursor:pointer;}
.pagination button.active{background:#0066cc;color:#fff;border-color:#0066cc;}

/* Page Content */
.page-content{padding:60px 0;min-height:calc(100vh - 340px);}
.page-title{font-size:32px;margin-bottom:30px;padding-bottom:12px;border-bottom:1px solid #eee;}

/* Footer */
footer{background:#1a1a1a;color:#aaa;padding:60px 0 30px;}
.footer-wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:40px;margin-bottom:40px;}
.footer-col h4{color:#fff;margin-bottom:18px;font-size:18px;}
.footer-col li{margin-bottom:10px;}
.footer-col a:hover{color:#fff;}
.payment-img{margin-top:20px;max-width:260px;}
.copyright{text-align:center;padding-top:30px;border-top:1px solid #333;}

/* Side Drawer & Overlay */
#overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:100;display:none;}
#overlay.active{display:block;}
.drawer{position:fixed;top:0;right:-420px;width:400px;height:100vh;background:#fff;z-index:101;transition:right 0.3s;padding:24px;overflow-y:auto;}
.drawer.active{right:0;}
.drawer-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;font-size:20px;font-weight:bold;}
.drawer-close{cursor:pointer;font-size:24px;}
.cart-item,.wish-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid #eee;}
.cart-item img,.wish-item img{width:70px;height:70px;object-fit:cover;}
.cart-total{margin-top:20px;font-size:18px;font-weight:bold;}

/* Product Detail Page */
.detail-wrap{display:grid;grid-template-columns:1fr 1fr;gap:50px;}
.detail-img{width:100%;border-radius:6px;}
.detail-price{font-size:26px;color:#c0392b;font-weight:bold;margin:16px 0;}
.detail-desc{margin:24px 0;line-height:1.8;}
.qty-input{width:80px;padding:8px;border:1px solid #ddd;margin:0 10px;}
.detail-buttons{display:flex;gap:15px;margin-top:30px;}

/* Contact Form */
.contact-form{max-width:640px;margin-top:30px;}
.form-row{margin-bottom:20px;}
.form-row label{display:block;margin-bottom:8px;}
.form-row input,.form-row textarea{width:100%;padding:12px;border:1px solid #ddd;border-radius:4px;}
button.submit{padding:14px 32px;background:#0066cc;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:16px;}

@media(max-width:768px){
    .detail-wrap{grid-template-columns:1fr;}
    .drawer{width:100%;right:-100%;}
    .nav-main ul{gap:14px;font-size:14px;}
}