body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f4f8;
    display: flex;
    justify-content: center;
}

.contenedor {
    width: 95%;
    max-width: 1400px;
    margin: 20px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.08);
}

.pregunta {
    margin-bottom: 20px;
    padding: 20px;
    border: 1px solid #e0e0e0;
    background: #ffffff;
    border-radius: 8px;
    font-weight: bold;
    text-align: justify;
    font-size: 18px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.pregunta:hover {
    transform: translateY(-5px);
    box-shadow: 0px 8px 15px rgba(0,0,0,0.12);
}

.opciones {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.opcion {
    display: flex;
    align-items: center;
    padding: 20px;
    min-height: 70px;
    width: 100%;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background: #fdfdfd;
    cursor: pointer;
    text-align: justify;
    font-size: 17px;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.opcion:hover {
    background-color: #f0f4ff;
    box-shadow: 0px 5px 10px rgba(0,0,0,0.08);
}

.correcta {
    background-color: #d4edda !important; /* Verde claro */
    color: #155724;
}

.incorrecta {
    background-color: #f8d7da !important; /* Rojo claro */
    color: #721c24;
}

.pagina-control {
    margin-top: 20px;
    text-align: center;
}

button {
    padding: 10px 15px;
    border: none;
    background: #007bff;
    color: white;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
}

button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

img {
    max-width: 100%;
    border-radius: 8px;
    margin-top: 8px;
}

@media screen and (max-width: 768px) {
    .contenedor {
        width: 98%;
        padding: 15px;
    }

    .pregunta {
        padding: 15px;
        font-size: 16px;
    }

    .opcion {
        font-size: 16px;
        min-height: 55px;
        padding: 15px;
    }

    button {
        width: 100%;
        font-size: 14px;
    }
}