Professional Table Heatmap

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Professional Table Heatmap</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta3/css/all.min.css">
    <style>
        body {
            font-family: 'Arial', sans-serif;
            background-color: #f0f2f5;
            margin: 0;
            padding: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
        }
        .heatmap-table {
            border-collapse: collapse;
            overflow: hidden;
            border-radius: 10px;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        .heatmap-table th,
        .heatmap-table td {
            padding: 15px;
            text-align: center;
            position: relative;
            transition: background-color 0.3s ease;
        }
        .heatmap-table th {
            background-color: #4CAF50;
            color: white;
            font-size: 1.1em;
        }
        .heatmap-table td {
            cursor: pointer;
        }
        .heatmap-table td::before {
            content: attr(data-value);
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 0.8em;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .heatmap-table td:hover::before {
            opacity: 1;
        }
        .heatmap-table td[data-value="low"] {
            background-color: #f4cccc;
        }
        .heatmap-table td[data-value="medium"] {
            background-color: #f6b26b;
        }
        .heatmap-table td[data-value="high"] {
            background-color: #93c47d;
        }
        .heatmap-table td[data-value="very-high"] {
            background-color: #6aa84f;
        }
        .heatmap-table td[data-value="low"]:hover,
        .heatmap-table td[data-value="medium"]:hover,
        .heatmap-table td[data-value="high"]:hover,
        .heatmap-table td[data-value="very-high"]:hover {
            background-color: #ffeb3b;
            color: #000;
        }
        .emoji {
            font-size: 1.5em;
            display: inline-block;
            transition: transform 0.3s ease;
        }
        .heatmap-table td:hover .emoji {
            transform: scale(1.2);
        }
        .info-icon {
            margin-left: 5px;
            color: #4CAF50;
            cursor: pointer;
            transition: transform 0.3s ease;
        }
        .info-icon:hover {
            transform: rotate(360deg);
        }
    </style>
</head>
<body>
    <table class="heatmap-table">
        <thead>
            <tr>
                <th>Category <i class="fas fa-info-circle info-icon" title="Information about categories"></i></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"><span class="emoji">😟</span></td>
                <td data-value="medium"><span class="emoji">😐</span></td>
                <td data-value="high"><span class="emoji">😊</span></td>
                <td data-value="very-high"><span class="emoji">😁</span></td>
            </tr>
            <tr>
                <td>Category 2</td>
                <td data-value="high"><span class="emoji">😊</span></td>
                <td data-value="very-high"><span class="emoji">😁</span></td>
                <td data-value="low"><span class="emoji">😟</span></td>
                <td data-value="medium"><span class="emoji">😐</span></td>
            </tr>
            <tr>
                <td>Category 3</td>
                <td data-value="medium"><span class="emoji">😐</span></td>
                <td data-value="low"><span class="emoji">😟</span></td>
                <td data-value="very-high"><span class="emoji">😁</span></td>
                <td data-value="high"><span class="emoji">😊</span></td>
            </tr>
        </tbody>
    </table>
    <script>
        document.querySelectorAll('.heatmap-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>

Professional Table Heatmap - MeggiTools