:root{--bg:#f6f7f9;--card:#fff;--accent:#333}
*{box-sizing:border-box;font-family:Inter,system-ui,Arial,Helvetica,sans-serif}
body{margin:0;background:var(--bg);color:var(--accent);}
header{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem}
h1{margin:0;font-size:1.4rem}
.categories{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;padding:2rem}
.card{background:var(--card);border-radius:12px;box-shadow:0 6px 18px rgba(0,0,0,0.06);text-decoration:none;color:inherit;overflow:hidden}
.search{display:inline-flex;align-items:center;margin-right:1rem}
.search input[type=search]{padding:0.4rem 0.6rem;border-radius:6px 0 0 6px;border:1px solid #ddd;border-right:0}
.search button{border-radius:0 6px 6px 0;padding:0.4rem 0.6rem;border:1px solid #111;background:#111;color:#fff}
.card-body{padding:1rem}

/* Banner */
.banner{display:flex;align-items:center;justify-content:space-between;padding:0.75rem 1.25rem;background:#fff;border-bottom:1px solid #eee}
.banner .brand{font-weight:700;font-size:1.1rem}
.banner .banner-center{flex:1;display:flex;justify-content:center;padding:0 1rem}
.banner .banner-right{min-width:80px;text-align:right}
.banner a{color:var(--accent);text-decoration:none}
@media(max-width:700px){
	.banner{flex-direction:column;gap:0.5rem;align-items:stretch}
	.banner .banner-center{order:2}
	.banner .banner-right{text-align:left}
}
/* Floating cart styles */
#cart-modal{font-size:14px}
#floating-cart button{box-shadow:0 6px 16px rgba(0,0,0,0.18)}
/* Add to cart button */
.add-btn{background:#0b7; border:0; color:#041; padding:0.5rem 0.75rem; border-radius:8px; cursor:pointer}
.add-btn:hover{opacity:0.95}

/* add-to-cart pulse animation */
.add-pulse{animation:cart-pulse 520ms ease-out}
@keyframes cart-pulse{
	0%{transform:scale(1)}
	30%{transform:scale(1.15)}
	100%{transform:scale(1)}
}

#cart-contents .qty-btn{background:#eee;border:0;padding:4px 8px;border-radius:6px;cursor:pointer;margin:0 4px}
#cart-contents .remove-btn{background:transparent;border:0;color:#c33;cursor:pointer}

/* copy button for crypto addresses */
.copy-btn{margin-left:8px;padding:4px 8px;border-radius:6px;border:1px solid #ddd;background:#f6f6f6;cursor:pointer}
.copy-btn:active{transform:translateY(1px)}
.copy-btn.copied{background:#dff0d8;border-color:#b2d8a7}

/* toast */
.toast{position:fixed;top:16px;right:16px;background:#111;color:#fff;padding:0.6rem 0.9rem;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,0.2);opacity:0;transform:translateY(-6px);transition:opacity .18s,transform .18s;z-index:2000}
.toast.show{opacity:1;transform:translateY(0)}
.card h2,.card h3{margin:0}

/* Footer */
.site-footer{background:#f7f7f7;border-top:1px solid #e6e6e6;padding:12px 0;margin-top:24px}
.site-footer .footer-inner{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:0 1rem}
.site-footer .supplier-btn{display:inline-block;background:#25D366;color:#fff;padding:8px 12px;border-radius:6px;text-decoration:none;margin-right:12px}
.site-footer .copyright{color:#666;font-size:13px}
.site-footer .flags span{font-size:18px;margin-left:8px;display:inline-block}

/* COA gallery */
.coa-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-top:12px}
.coa-gallery .coa-item img{width:100%;height:140px;object-fit:cover;border-radius:8px;border:1px solid #eaeaea}

/* Advantages + FAQ */
.advantages-faq .section-title{font-size:20px;text-align:center;margin:12px 0}
.advantages-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}
.adv-item{display:flex;gap:12px;align-items:center;padding:14px;background:#fff;border-radius:10px;border:1px solid #f0f0f0}
.adv-icon{width:56px;height:56px;flex:0 0 56px;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#fff,#fbfbfb);border-radius:10px}
.adv-icon img{width:36px;height:36px;display:block}
.adv-text{font-size:15px;color:#222}

/* Banner title and header links */
.banner{display:flex;align-items:center;justify-content:space-between;padding:12px 1rem;background:#fff;border-bottom:1px solid #eee}
.banner .brand a{font-size:28px;font-weight:800;color:#111;text-decoration:none;letter-spacing:0.4px}
.banner .home-link{display:inline-block;padding:6px 10px;border-radius:6px;background:transparent;color:#111;text-decoration:none;border:1px solid transparent}
.banner .home-link:hover{background:#f2f2f2;border-color:#e6e6e6}
@media(max-width:600px){
	.banner .brand a{font-size:20px}
	.adv-icon{width:48px;height:48px}
}
.faq-list{margin:0;padding-left:1.1rem}
.faq-list{margin:0;padding:0;list-style:none}
.faq-list li{margin-bottom:0;border-bottom:1px solid #f1f1f1;padding:14px 0;display:block}
.faq-list li:last-child{border-bottom:0}
.faq-list strong{display:block;font-size:15px;margin-bottom:8px;color:#222}
.faq-list p{margin:0;color:#555;line-height:1.45}
.faq{background:linear-gradient(180deg,#fff,#fbfbfb);padding:16px;border-radius:10px;border:1px solid #eee}
.faq .section-title{margin-bottom:8px}
.faq-list li::marker{display:none}
.faq-list li .faq-answer{max-width:900px}

/* small visual tweak for advantage items */
.adv-item{background:linear-gradient(180deg,#fff,#fff);box-shadow:0 6px 18px rgba(12,12,12,0.04)}

@media(max-width:800px){
	.advantages-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
	.advantages-grid{grid-template-columns:1fr}
}


.card-img{height:140px;display:flex;align-items:center;justify-content:center;background:#fafafa}
.card-img img{max-width:100%;max-height:100%;object-fit:contain}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;padding:2rem}
.product .price{font-weight:600;margin-top:0.5rem}
main{padding-bottom:3rem}
.product-detail{display:flex;gap:1rem;padding:1rem;align-items:flex-start}
.product-detail .card-img{width:320px;height:320px}
.placeholder{background:#eee;color:#666;padding:1rem}
table{width:100%;border-collapse:collapse}
table td,table th{padding:0.5rem;border-bottom:1px solid #eee}
.admin-login{max-width:420px;margin:4rem auto;padding:1rem}
.admin-actions{max-width:800px;margin:1rem;padding:1rem}
form label{display:block;margin:0.5rem 0}
button{background:#111;color:#fff;padding:0.6rem 0.9rem;border:0;border-radius:6px}
@media(max-width:700px){.product-detail{flex-direction:column}.product-detail .card-img{width:100%;height:auto}}