:root{--primary-color: #f57224;--primary-dark: #d45703;--accent-color: #fe724c;--brand-start: #f57224;--brand-end: #ff1744;--ink: #101114;--ink-light: #555;--ink-weak: #888;--background-color: #f5f5f5;--surface-bg: var(--background-color);--card-background: #ffffff;--card-bg: var(--card-background);--border-color: #e0e0e0;--border: var(--border-color);--shadow-color: rgba(245, 114, 36, .1);--shadow: 0 8px 32px var(--shadow-color);--success-color: #28a745;--badge-green: #28a745;--badge-green-light: #e8f5e9;--hot-color: #ff3a5e;--badge-red: #ff3a5e;--flash-color: #ffc107;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 24px;--radius-pill: 999px;--radius: 16px}html,body{background-color:var(--background-color);color:var(--ink);font-family:Inter,Poppins,Segoe UI,Arial,sans-serif;margin:0;overflow-x:clip}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.checkout-container{max-width:1100px;margin:24px auto 80px;display:grid;grid-template-columns:1fr 420px;gap:32px;align-items:flex-start;animation:fadeIn .6s ease-out forwards;padding:0 16px}.checkout-main{display:flex;flex-direction:column;gap:24px}.checkout-card{background:var(--card-background);border-radius:var(--radius-lg);padding:28px;border:1px solid var(--border-color);box-shadow:0 8px 32px var(--shadow-color)}.card-header{display:flex;align-items:center;gap:12px;margin-bottom:24px}.card-header .icon{font-size:1.5rem;color:var(--primary-color)}.card-header .title{font-family:Poppins,sans-serif;font-size:1.5rem;font-weight:600;margin:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-group{display:flex;flex-direction:column}.form-group.full-width{grid-column:1 / -1}.form-group label{font-weight:600;font-size:.9rem;margin-bottom:8px;color:var(--ink-light)}.form-group input{padding:12px 16px;border:1px solid var(--border-color);border-radius:var(--radius-md);font-size:1rem;font-family:Inter,sans-serif;transition:border-color .3s ease,box-shadow .3s ease}.form-group input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #f5722433}.payment-methods{display:flex;flex-direction:column;gap:12px}.payment-option{padding:12px;border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;gap:12px;transition:all .3s ease}.binance-details li span{overflow-wrap:anywhere;word-break:break-all}.copyable{cursor:pointer;user-select:all;position:relative;padding:2px 4px;border-radius:4px;transition:background-color .3s ease}.copyable.copied{background-color:var(--badge-green-light)}.copyable.copied:after{content:"Copied!";position:absolute;top:-28px;left:50%;transform:translate(-50%);font-size:.85rem;font-weight:600;color:#fff;background:var(--badge-green);padding:4px 8px;border-radius:6px;white-space:nowrap;z-index:10;animation:fadeIn .3s}@media(min-width:600px){.payment-methods{display:grid;grid-template-columns:1fr 1fr}}.payment-option input[type=radio]{accent-color:var(--primary-color);width:18px;height:18px}.payment-option:has(input:checked),.payment-option:hover{border-color:var(--primary-color);background-color:#fff7f5}.payment-logos{margin-left:auto;display:flex;gap:8px;align-items:center}.payment-logos img{height:24px}.order-summary{background:var(--card-background);border-radius:var(--radius-lg);padding:28px;border:1px solid var(--border-color);box-shadow:0 8px 32px var(--shadow-color);position:sticky;top:24px}.summary-title{font-family:Poppins,sans-serif;font-size:1.5rem;font-weight:600;margin:0 0 24px;text-align:center}.summary-items{max-height:250px;overflow-y:auto;padding-right:10px;margin-bottom:24px}.summary-item{display:flex;align-items:center;gap:16px;margin-bottom:16px}.item-image{width:64px;height:64px;object-fit:contain;border-radius:var(--radius-md);background-color:#f9f9f9;border:1px solid var(--border-color)}.item-details{flex-grow:1}.item-title{font-weight:600;margin:0 0 4px}.item-price{color:var(--ink-light)}.item-total{font-weight:600}.summary-total{border-top:1px solid var(--border-color);padding-top:24px;display:flex;justify-content:space-between;align-items:center;font-family:Poppins,sans-serif;font-size:1.2rem;font-weight:600}.total-amount{font-size:1.8rem;font-weight:700;color:var(--primary-color)}.place-order-btn{width:100%;background:linear-gradient(90deg,var(--accent-color),var(--primary-color));color:#fff;border:none;border-radius:var(--radius-md);padding:16px;font-family:Poppins,sans-serif;font-size:1.1rem;font-weight:600;cursor:pointer;margin-top:24px;display:flex;align-items:center;justify-content:center;gap:10px;transition:all .3s ease}.place-order-btn:hover{transform:translateY(-3px);box-shadow:0 8px 20px #f572244d}.place-order-btn:active{transform:scale(.98)}.loader{width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;display:none}.place-order-btn.processing .loader{display:block}.place-order-btn.processing span{display:none}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:992px){.checkout-container{grid-template-columns:1fr}.order-summary{position:static;margin-top:24px}}@media(max-width:600px){.form-grid{grid-template-columns:1fr}.checkout-card,.order-summary{padding:20px}.payment-option{flex-direction:column;align-items:flex-start}.payment-logos{margin-left:0;margin-top:10px}.footer-grid{grid-template-columns:1fr;text-align:left}.footer-col h3:after{left:0;transform:none}}#product-image-skeleton{border-radius:var(--radius-lg);width:100%;aspect-ratio:4 / 3}.thumbnail-strip .skeleton{border-radius:var(--radius-md);border:2px solid var(--border-color)}.product-info .skeleton#product-title{height:2.2rem;width:70%;margin-bottom:12px}.product-info .skeleton#product-price{height:2.5rem;width:120px}.product-info .skeleton#original-price{height:1.2rem;width:80px;margin-left:12px}.product-info .skeleton#product-short-description{height:80px;width:90%}.related-products-grid .product-card.skeleton{background:transparent;border-color:transparent;box-shadow:none}.related-products-grid .product-card.skeleton .card-image-container{background-color:#e2e8f0;border-radius:var(--radius-md)}.related-products-grid .product-card.skeleton .card-content{padding-top:16px}.related-products-grid .product-card.skeleton .skeleton{background-color:#e2e8f0}.site-footer{background-color:var(--card-background);color:var(--ink-light);padding:50px 24px 0;margin-top:40px;border-top:1px solid var(--border-color);box-shadow:none}.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:40px;padding-bottom:40px}.footer-col h3{font-family:Poppins,sans-serif;font-size:1.2rem;font-weight:700;color:var(--primary-dark);margin:0 0 20px;position:relative;padding-bottom:10px}.footer-col h3:after{content:"";position:absolute;left:0;bottom:0;width:40px;height:3px;background:var(--accent-color);border-radius:2px}.footer-col ul{list-style:none;padding:0;margin:0}.footer-col ul li{margin-bottom:12px}.footer-col ul a{color:var(--ink-light);text-decoration:none;font-weight:500;transition:color .2s}.footer-col ul a:hover{color:var(--primary-color)}.social-links{display:flex;gap:16px;margin-top:15px}.social-links a{color:var(--primary-color);font-size:1.6rem;transition:transform .2s,color .2s}.social-links a:hover{color:var(--accent-color);transform:scale(1.1)}.payment-methods-logos{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.payment-methods-logos img{height:28px;opacity:.8}.footer-bottom{max-width:1200px;margin:0 auto;padding:20px 0;border-top:none;display:flex;justify-content:space-between;align-items:center;font-weight:500;color:#999;flex-wrap:wrap;gap:16px}.theme-toggle{display:flex;align-items:center;gap:8px;font-weight:600}.theme-toggle .switch{position:relative;display:inline-block;width:50px;height:24px}.theme-toggle .switch input{opacity:0;width:0;height:0;position:absolute}.theme-toggle .slider{position:absolute;cursor:pointer;inset:0;background-color:#ccc;transition:.4s;border-radius:34px}.theme-toggle .slider:before{position:absolute;content:"";height:20px;width:20px;left:2px;bottom:2px;background-color:#fff;transition:.4s;border-radius:50%}.theme-toggle input:checked+.slider{background-color:var(--primary-color)}.theme-toggle input:checked+.slider:before{transform:translate(26px)}.theme-toggle .switch input:focus+.slider{outline:none;box-shadow:none}.theme-toggle .slider{-webkit-tap-highlight-color:transparent}@media(max-width:768px){.footer-bottom{flex-direction:column;justify-content:center;text-align:center}}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%) translateY(100px);background:#333;color:#fff;padding:12px 24px;border-radius:50px;box-shadow:0 4px 12px #00000026;z-index:10000;transition:transform .3s cubic-bezier(.175,.885,.32,1.275);font-size:14px;display:flex;align-items:center;gap:10px}.toast.show{transform:translate(-50%) translateY(0)}.toast-success{background:#48bb78}.toast-error{background:#e53e3e}.toast-info{background:#3182ce}.empty-state,.error-state{text-align:center;padding:80px 20px;display:flex;flex-direction:column;align-items:center;justify-content:center;animation:fadeInUp .5s ease-out;width:100%;box-sizing:border-box;background:#ffffff80;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:24px;border:1px solid rgba(255,255,255,.8);box-shadow:0 10px 30px -10px #0000000d}.empty-icon-glow{width:100px;height:100px;border-radius:50%;background:radial-gradient(circle,rgba(255,107,0,.15) 0%,transparent 70%);display:flex;align-items:center;justify-content:center;margin-bottom:24px;position:relative}.empty-icon-glow:after{content:"";position:absolute;width:100%;height:100%;border-radius:50%;border:1px solid rgba(255,107,0,.1);animation:pulse-ring 2s infinite}@keyframes pulse-ring{0%{transform:scale(.8);opacity:0}50%{opacity:1}to{transform:scale(1.2);opacity:0}}.empty-state i,.error-state .error-icon{font-size:48px;color:#ff6b00;filter:drop-shadow(0 4px 6px rgba(255,107,0,.2))}.error-state .error-icon{color:#e53e3e}.empty-state h2,.error-state h3{font-size:24px;font-weight:700;margin:0 0 16px;background:linear-gradient(135deg,#2d3748,#1a202c);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.empty-state p,.error-state p{font-size:16px;color:#718096;max-width:450px;margin:0 auto 32px;line-height:1.6}.empty-state-btn{padding:14px 32px;font-size:15px;box-shadow:0 10px 20px #ff6b0040;transition:all .3s ease}.empty-state-btn:hover{transform:translateY(-3px);box-shadow:0 15px 30px #ff6b0059}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}