body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
}

.container {
    width: 90%;
    max-width: 500px;
    margin: auto;
    padding: 20px;
    background: white;
    margin-top: 20px;
    border-radius: 10px;
}

.titulo {
    text-align: center;
}

.banner img {
    width: 100%;
    border-radius: 10px;
    margin-bottom: 20px;
}

.checkbox {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.checkbox input {
    margin-right: 10px;
}

.btn {
    width: 100%;
    padding: 12px;
    background: #0078ff;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
}

#gracias {
    text-align: center;
    margin-top: 20px;
    color: green;
}

.oculto {
    display: none;
}