body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
  }
  
  #navbar {
    background-color: #222;
    padding: 10px 0;
  }
  
  #navbar ul {
    list-style: none;
    text-align: center;
    margin: 0;
    padding: 0;
  }
  
  #navbar ul li {
    display: inline;
    margin: 0 15px;
  }
  
  #navbar ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
  }
  
  #navbar ul li a:hover {
    color: #ffcc00;
  }
  
  #banner {
    background: linear-gradient(to right, #007bff, #00c6ff);
    color: white;
    text-align: center;
    padding: 40px 20px;
  }
  
  #products {
    margin: 20px;
    text-align: center;
  }
  
  .product-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .product {
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    width: 220px;
    margin: 15px;
    padding: 15px;
    text-align: center;
    transition: transform 0.3s;
  }
  
  .product:hover {
    transform: scale(1.05);
  }
  
  .product img {
    width: 180px;
    height: auto;
    margin-bottom: 10px;
    border-radius: 5px;
  }
  
  .price {
    color: #e60000;
    font-weight: bold;
  }
  
  .buy-btn {
    background-color: #007bff;
    color: white;
    padding: 8px 12px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  .buy-btn:hover {
    background-color: #0056b3;
  }
  
  #product-detail {
    background-color: white;
    margin: 20px auto;
    padding: 20px;
    width: 300px;
    text-align: center;
    border: 1px solid #ddd;
    border-radius: 8px;
  }
  
  #checkout-form input {
    width: 90%;
    padding: 8px;
    margin: 5px 0;
  }
  
  #checkout-form button {
    background-color: #28a745;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  #checkout-form button:hover {
    background-color: #218838;
  }
  
  #contact {
    background-color: