body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #333;
    color: white;
    padding: 10px 0;
    text-align: center;
}

nav {
    display: flex;
    justify-content: center;
}

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

nav li {
    display: inline;
    margin-right: 20px;
}

main {
    max-width: 800px;
    margin: 20px auto;
}

.products {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.product {
    border: 1px solid #ddd;
    padding: 10px;
    margin: 10px;
    text-align: center;
}

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

.add-to-cart {
    background-color: #4CAF50;
    color: white;
    padding: 10px;
    border: none;
    cursor: pointer;
}

.add-to-cart:hover {
    background-color: #45a049;
}

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

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

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

th {
    background-color: #f2f2f2;
}

input[type="number"] {
    width: 50px;
    text-align: center;
}

button {
    background-color: #f44336;
    color: white;
    padding: 8px;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #d32f2f;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    bottom: 0;
    width: 100%;
}