*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:#1e293b;line-height:1.6}.app{min-height:100vh;display:flex;flex-direction:column}main{flex:1}.navbar{display:flex;align-items:center;justify-content:space-between;padding:16px 40px;border-bottom:1px solid #e2e8f0;position:sticky;top:0;background:#fff;z-index:100}.logo{display:flex;align-items:center;gap:8px;text-decoration:none}.logo-icon{font-size:24px}.logo-text{font-size:22px;font-weight:800;color:#06f}.nav-links{display:flex;gap:24px}.nav-links a{text-decoration:none;color:#475569;font-size:14px;font-weight:500;transition:color .2s}.nav-links a:hover{color:#06f}.hero{padding:80px 40px;text-align:center;background:linear-gradient(135deg,#f0f7ff,#e8f5e9)}.hero h1{font-size:48px;font-weight:800;color:#0f172a;margin-bottom:16px}.hero p{font-size:18px;color:#475569;max-width:600px;margin:0 auto 32px}.hero-cta{display:inline-block;background:#06f;color:#fff;padding:14px 32px;border-radius:12px;font-weight:700;text-decoration:none;font-size:16px}.page{max-width:800px;margin:0 auto;padding:60px 24px}.page h1{font-size:32px;font-weight:800;margin-bottom:8px;color:#0f172a}.page .subtitle{color:#64748b;margin-bottom:32px;font-size:15px}.page h2{font-size:20px;font-weight:700;margin-top:32px;margin-bottom:12px;color:#0f172a}.page p,.page li{font-size:15px;color:#334155;line-height:1.8;margin-bottom:12px}.page ul{padding-left:24px}.page li{margin-bottom:8px}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:60px 40px;max-width:1000px;margin:0 auto}.feature-card{padding:28px;border:1px solid #e2e8f0;border-radius:16px;text-align:center}.feature-card .icon{font-size:36px;margin-bottom:12px}.feature-card h3{font-size:16px;font-weight:700;margin-bottom:8px}.feature-card p{font-size:13px;color:#64748b}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:24px}.contact-card{padding:24px;background:#f8fafc;border-radius:12px}.contact-card h3{font-size:16px;font-weight:700;margin-bottom:12px}.contact-card p{font-size:14px;color:#475569;margin-bottom:6px}.checkout-container{max-width:500px;margin:60px auto;padding:32px;border:1px solid #e2e8f0;border-radius:16px}.checkout-container h1{font-size:24px;text-align:center;margin-bottom:24px}.checkout-status{text-align:center;padding:40px}.checkout-status .icon{font-size:48px;margin-bottom:16px}.footer{background:#0f172a;color:#94a3b8;padding:48px 40px 24px}.footer-content{display:grid;grid-template-columns:1fr 1fr 1fr;gap:40px;max-width:1000px;margin:0 auto}.footer-brand h3{color:#fff;font-size:18px;margin-bottom:8px}.footer-links{display:flex;flex-direction:column;gap:8px}.footer-links a{color:#94a3b8;text-decoration:none;font-size:14px}.footer-links a:hover{color:#fff}.footer-contact p{font-size:13px;margin-bottom:4px}.footer-bottom{text-align:center;margin-top:40px;padding-top:20px;border-top:1px solid #1e293b;font-size:12px}@media (max-width: 768px){.navbar{flex-direction:column;gap:12px;padding:12px 20px}.nav-links{flex-wrap:wrap;justify-content:center;gap:12px}.hero{padding:40px 20px}.hero h1{font-size:32px}.features{grid-template-columns:1fr;padding:40px 20px}.contact-grid{grid-template-columns:1fr}.footer-content{grid-template-columns:1fr;gap:24px}}.filter-bar{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}.filter-btn{padding:8px 18px;border:1px solid #e2e8f0;border-radius:20px;background:#fff;color:#475569;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s}.filter-btn.active{background:#06f;color:#fff;border-color:#06f}.filter-btn:hover{border-color:#06f}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}.product-card{border:1px solid #e2e8f0;border-radius:14px;overflow:hidden;transition:box-shadow .2s}.product-card:hover{box-shadow:0 4px 16px #00000014}.product-img{height:160px;background-size:cover;background-position:center;position:relative}.deal-badge{position:absolute;top:10px;left:10px;background:#ef4444;color:#fff;font-size:11px;font-weight:700;padding:3px 8px;border-radius:4px}.product-body{padding:14px}.product-grade{font-size:11px;color:#06f;font-weight:600}.product-body h3{font-size:15px;font-weight:700;color:#0f172a;margin:4px 0}.product-weight{font-size:12px;color:#94a3b8;margin-bottom:8px}.product-pricing{display:flex;align-items:center;gap:8px;margin-bottom:12px}.product-price{font-size:18px;font-weight:800;color:#0f172a}.product-original{font-size:13px;color:#94a3b8;text-decoration:line-through}.add-to-cart-btn{display:block;text-align:center;background:#06f;color:#fff;padding:10px;border-radius:8px;font-size:13px;font-weight:700;text-decoration:none;transition:background .2s}.add-to-cart-btn:hover{background:#0052cc}.cart-items{margin-bottom:24px}.cart-item{display:flex;align-items:center;gap:14px;padding:16px 0;border-bottom:1px solid #f1f5f9}.cart-item-img{width:60px;height:60px;border-radius:10px;object-fit:cover}.cart-item-info{flex:1}.cart-item-info h4{font-size:15px;font-weight:700;color:#0f172a;margin-bottom:2px}.cart-item-info p{font-size:12px;color:#64748b;margin:0}.cart-item-price{font-weight:700;color:#0f172a!important;font-size:14px!important;margin-top:4px!important}.cart-item-actions{text-align:right}.qty-control{display:flex;align-items:center;gap:10px;margin-bottom:8px}.qty-control button{width:28px;height:28px;border:1px solid #e2e8f0;border-radius:6px;background:#fff;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center}.qty-control span{font-weight:700;font-size:14px;min-width:20px;text-align:center}.remove-btn{background:none;border:none;color:#ef4444;font-size:12px;cursor:pointer;font-weight:500}.empty-cart{text-align:center;padding:60px 0;color:#64748b}.cart-summary{background:#f8fafc;border-radius:12px;padding:20px;margin-bottom:20px}.summary-row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px;color:#475569}.summary-row.total{border-top:1px solid #e2e8f0;margin-top:8px;padding-top:12px;font-size:18px;font-weight:800;color:#0f172a}.checkout-btn{display:block;text-align:center;background:#06f;color:#fff;padding:16px;border-radius:12px;font-size:16px;font-weight:700;text-decoration:none;transition:background .2s}.checkout-btn:hover{background:#0052cc}@media (max-width: 768px){.product-grid{grid-template-columns:repeat(2,1fr);gap:12px}.cart-item{flex-wrap:wrap}}