.contenedor-preguntas {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

#options {
    margin: 20px 0;
}

.option {
    display: block;
    padding: 10px;
    margin: 5px 0;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

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

.correct {
    background-color: #28a745;
    color: white;
}

.incorrect {
    background-color: #dc3545;
    color: white;
}

#next-btn {
    background-color: #28a745;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

#next-btn:hover {
    background-color: #218838;
}

#score-container {
    margin-top: 20px;
    font-size: 1.2em;
}