body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f5f5f5;
}

.quiz-container {
    max-width: 600px;
    padding: 30px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background-color: #fff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
}

.question {
    margin-bottom: 20px;
    color: #555;
}

label {
    display: block;
    margin-bottom: 10px;
    cursor: pointer;
}

input[type="radio"] {
    margin-right: 6px;
}

.action-btn {
    display: block;
    margin: 20px auto;
    padding: 12px 24px;
    background-color: #007BFF;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.2s ease;
}

.action-btn:hover {
    background-color: #0056b3;
}

#timer {
    text-align: center;
    font-size: 18px;
    color: #888;
}