.card {
            border: none;
            padding: 20px;
        }
        h2 {
            font-weight: bold;
            color: #007bff;
        }
        .questions {
            margin-bottom: 20px;
            padding: 15px;
            border-radius: 8px;
            background: #eef5ff;
        }
        textarea {
            width: 100%;
            border: 1px solid #ced4da;
            border-radius: 5px;
            padding: 10px;
            resize: none;
        }
        .submit-btn {
            background: #007bff;
            color: white;
            padding: 12px;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            transition: 0.3s;
        }
        .submit-btn:hover {
            background: #0056b3;
        }
        .feedback {
            margin-top: 5px;
            font-weight: bold;
        }
        .correct {
            color: green;
        }
        .incorrect {
            color: red;
        }