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

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

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

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

        nav ul li a {
            color: white;
            text-decoration: none;
        }

        section {
            padding: 20px;
        }

        .stats-overview {
            display: flex;
            gap: 20px;
        }

        .stat-box, .product-item {
            background-color: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
            text-align: center;
        }

        .product-list {
            display: flex;
            gap: 20px;
        }

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

        form {
            margin-top: 20px;
        }

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

        input, select {
            padding: 8px;
            margin-bottom: 15px;
            width: 100%;
            max-width: 300px;
        }

        button {
            background-color: #333;
            color: white;
            border: none;
            padding: 10px;
            cursor: pointer;
        }