Elegant Heatmap - MeggiTools

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Elegant Heatmap</title>
    <style>
        body {
            font-family: 'Georgia', serif;
            background-color: #eae7dc;
            margin: 0;
            padding: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
        }
        .elegant-table {
            border-collapse: separate;
            border-spacing: 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            background-color: #fff;
        }
        .elegant-table th, .elegant-table td {
            padding: 15px;
            text-align: center;
            border: 1px solid #ddd;
            transition: background-color 0.3s ease;
        }
        .elegant-table th {
            background-color: #8e8d8a;
            color: white;
            font-size: 1.2em;
        }
        .elegant-table td[data-value="low"] {
            background-color: #f8f8f8;
        }
        .elegant-table td[data-value="medium"] {
            background-color: #e0e0e0;
        }
        .elegant-table td[data-value="high"] {
            background-color: #c0c0c0;
        }
        .elegant-table td[data-value="very-high"] {
            background-color: #a0a0a0;
        }
        .elegant-table td[data-value="low"]:hover,
        .elegant-table td[data-value="medium"]:hover,
        .elegant-table td[data-value="high"]:hover,
        .elegant-table td[data-value="very-high"]:hover {
            background-color: #ffeb3b;
            color: #000;
        }
    </style>
</head>
<body>
    <table class="elegant-table">
        <thead>
            <tr>
                <th>Category</th>
                <th>Item 1</th>
                <th>Item 2</th>
                <th>Item 3</th>
                <th>Item 4</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>Category 1</td>
                <td data-value="low">😟</td>
                <td data-value="medium">😐</td>
                <td data-value="high">😊</td>
                <td data-value="very-high">😁</td>
            </tr>
            <tr>
                <td>Category 2</td>
                <td data-value="high">😊</td>
                <td data-value="very-high">😁</td>
                <td data-value="low">😟</td>
                <td data-value="medium">😐</td>
            </tr>
            <tr>
                <td>Category 3</td>
                <td data-value="medium">😐</td>
                <td data-value="low">😟</td>
                <td data-value="very-high">😁</td>
                <td data-value="high">😊</td>
            </tr>
        </tbody>
    </table>
    <script>
        document.querySelectorAll('.elegant-table td').forEach(cell => {
            cell.addEventListener('click', () => {
                const value = cell.getAttribute('data-value');
                alert(`You clicked on a cell with value: ${value}`);
            });
        });
    </script>
</body>
</html>