body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
	
    background-image: url(fondo.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: 100% 100%;
}

.survey-container {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 80%;
    max-width: 600px;
}

.survey-container h1 {
    margin-bottom: 20px;
    color: #333;
}

.question {
    display: none;
}

.question.active {
    display: block;
}

.option {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.option input[type="radio"] {
    margin-right: 10px;
}

.button {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 10px 20px;
    text-align: center;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 20px;
    width: 100%;
}

.button:hover {
    background-color: #218838;
}

.button:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
}


.teal.lighten-5 {
    background-color: #f7f7f7 !important;
}