body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #333;
    color: #fff;
    padding: 1em 0;
    text-align: center;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin-right: 10px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    padding: 5px 10px;
    background-color: #007bff;
    border-radius: 5px;
}

main {
    padding: 20px;
}

h1, h2 {
    color: #333;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

table, th, td {
    border: 1px solid #ddd;
}

th, td {
    padding: 10px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}

form {
    margin-bottom: 20px;
}

form label {
    display: block;
    margin-bottom: 5px;
}

form input, form textarea, form button {
    display: block;
    width: 100%;
    margin-bottom: 10px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

form button {
    background-color: #007bff;
    color: #fff;
    border: none;
    cursor: pointer;
}

form button:hover {
    background-color: #0056b3;
}

img {
    max-width: 100%;
    height: auto;
}

.product-list {
    display: flex;
    flex-wrap: wrap;
}

.product {
    width: 30%;
    margin: 1%;
    border: 1px solid #ccc;
    padding: 10px;
    box-sizing: border-box;
    text-align: center;
}

.product img {
    width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    .product {
        width: 100%;
    }
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgb(0, 0, 0);
    background-color: rgba(0, 0, 0, 0.4);
    padding-top: 60px;
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    box-sizing: border-box;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

.quantity-input {
    width: 50px;
    text-align: center;
    margin-right: 10px;
}

.button-group {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

.button-group button {
    flex: 1;
    margin: 0 5px;
}

.order-button {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
    font-size: 16px;
}

.order-button:hover {
    background-color: #218838;
}