body{font-family:Arial,sans-serif;margin:0;padding:0;background:#f5f5f5}header{display:flex;justify-content:space-between;align-items:center;padding:15px 30px;background-color:#222;color:#fff;position:sticky;top:0;z-index:100}header .logo a{color:#fff;font-size:1.5rem;font-weight:700;text-decoration:none}header nav a{color:#fff;margin-left:20px;text-decoration:none;font-weight:500}header nav a:hover{color:#ff9800}.product-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;padding:20px}.product-item{background:#fff;padding:15px;border-radius:8px;border:1px solid #ddd;display:flex;flex-direction:column;align-items:center;text-align:center;transition:box-shadow .3s}.product-item:hover{box-shadow:0 4px 12px #00000026}.product-item img{width:150px;height:150px;object-fit:contain;margin-bottom:10px}.cart-page{padding:20px}.cart-item{background:#fff;display:flex;gap:15px;padding:10px;border-radius:6px;border:1px solid #ddd;margin-bottom:10px;align-items:center}.cart-item img{width:80px;height:80px;object-fit:contain}.cart-item h4{margin:0}.cart-item div button{padding:5px 10px;margin:0 5px;cursor:pointer}.checkout-btn{padding:10px 20px;background-color:#ff9800;border:none;color:#fff;border-radius:6px;cursor:pointer;margin-top:15px}.checkout-btn:hover{background-color:#e68900}@media(max-width:768px){header{flex-direction:column;align-items:flex-start}.product-list{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}.cart-item{flex-direction:column;align-items:flex-start}}