body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    padding: 20px;
    line-height: 1.6;
}

#quiz-container {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    max-width: 900px;
    margin: 0 auto 20px;
}

h1 {
    text-align: center;
    color: #0056b3;
    margin-bottom: 30px;
}

.question {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid #ddd;
}

.question p {
    font-weight: bold;
    font-size: 1.1em;
    color: #222;
    margin-bottom: 10px;
}

.option label {
    display: block;
    margin-bottom: 8px;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.option label:hover {
    background-color: #e9e9e9;
}

button {
    display: block;
    width: 200px;
    margin: 20px auto;
    padding: 12px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1em;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

#results {
    margin-top: 30px;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-size: 1.2em;
    font-weight: bold;
}

#results.hidden {
    display: none;
}

.correct-answer {
    background-color: #d4edda;
    color: #155724;
    padding: 5px;
    border-radius: 4px;
    margin-top: 5px;
}

.incorrect-answer {
    background-color: #f8d7da;
    color: #721c24;
    padding: 5px;
    border-radius: 4px;
    margin-top: 5px;
}

.result-summary {
    margin-top: 20px;
    font-size: 1.5em;
    color: #007bff;
}