body {
    font-family: Arial, sans-serif;
    padding: 20px;
    background: #f8f8f8;
    color: #333;
}

h1 {
    color: #444;
}

nav ul {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
    display: flex;
    gap: 15px;
}

nav ul li {
    display: inline;
}

nav ul li a {
    text-decoration: none;
    background-color: #007bff;
    color: #fff;
    padding: 8px 14px;
    border-radius: 5px;
    font-size: 14px;
    transition: background-color 0.3s;
}

nav ul li a:hover {
    background-color: #0056b3;
}

.product-list {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.product {
    background: #fff;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

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

th, td {
    padding: 10px;
    border: 1px solid #ddd;
    text-align: left;
}

th {
    background: #f0f0f0;
}