body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #2c3e50;
}

.question {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 15px;
    margin-bottom: 20px;
}

input[type="submit"], button {
    background-color: #3498db;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

input[type="submit"]:hover, button:hover {
    background-color: #2980b9;
}

.result {
    margin-top: 20px;
}

.correct {
    color: green;
}

.incorrect {
    color: red;
}

@media (max-width: 600px) {
    body {
        font-size: 18px;
    }
    
    input[type="radio"], input[type="checkbox"] {
        transform: scale(1.5);
        margin-right: 10px;
    }
}