body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f4;
            padding: 20px;
        }
        h1 {
            text-align: center;
            color: #333;
        }
        form {
            text-align: center;
            margin-bottom: 20px;
        }
        input[type="text"], select {
            padding: 8px;
            margin: 5px;
            width: 200px;
        }
        button {
            padding: 8px 16px;
            background-color: #28a745;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 20px;
            background: white;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }
        th, td {
            padding: 12px;
            border: 1px solid #ddd;
            text-align: left;
        }
        th {
            background-color: #007bff;
            color: white;
        }
        a {
            display: inline-block;
            margin: 10px;
            color: #007bff;
            text-decoration: none;
        }
        a:hover {
            text-decoration: underline;
        }