.shopping-cart{position:absolute;right:20px;top:20px;background:#000;border:1px solid #000;padding:10px;z-index:1000}#app{text-align:center}header{background:#282c34;color:#fff;position:relative}header,main{padding:20px}main{flex:1;overflow-y:auto}footer{padding:10px;background:#f8f9fa;text-align:center}footer button{padding:10px 20px;border:none;border-radius:4px;background-color:#007bff;color:#fff;cursor:pointer}footer button:hover{background-color:#0056b3}.signup-container{max-width:400px;margin:auto;padding:20px;border-radius:8px;box-shadow:0 4px 10px rgba(0,0,0,.1);background-color:#fff}.signup-form{display:flex;flex-direction:column}.signup-form input,.signup-form select{margin-bottom:15px;padding:10px;border:1px solid #ccc;border-radius:4px;font-size:16px}.signup-form button{padding:10px;border:none;border-radius:4px;background-color:#007bff;color:#fff;font-size:16px;cursor:pointer;transition:background-color .3s}.signup-form button:hover{background-color:#0056b3}.message{color:#28a745;margin-top:10px}p{text-align:center}.product-list{display:flex;flex-wrap:wrap;justify-content:space-around}.product{border:1px solid #ccc;border-radius:5px;padding:10px;margin:10px;cursor:pointer;text-align:center}.product-image{width:100px;width:200px;height:auto;margin-bottom:10px}.shopping-cart-page{padding:20px}.shopping-cart-page ul{list-style-type:none;padding:0}.cart-item{display:flex;align-items:center;margin:10px 0}.item-image{width:50px;height:50px;margin-right:10px}.item-details{flex-grow:1;display:flex;justify-content:space-between;align-items:center}.stock-info{color:#666;font-size:.9em}.quantity-controls{display:flex;align-items:center}.quantity-controls button{margin:0 5px}.purchase-button{margin-top:20px;padding:10px 20px;background-color:#4caf50;color:#fff;border:none;cursor:pointer}.error-message{color:red;margin-top:10px}