body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
    background-color: #f4f4f4;
}

.nav-bar {
    width: 100%;
    display: flex;
    justify-content: flex-end;
    background-color: #333;
    padding: 10px;
    /* display: none;  Esconder el menu de login / register */
}

.nav-button {
    margin: 0 10px;
    padding: 10px 20px;
    border: none;
    background-color: #28a745;
    color: white;
    border-radius: 4px;
    cursor: pointer;
}

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

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
}

.input-section, .qr-section {
    margin-bottom: 20px;
}

input[type="text"] {
    width: 300px;
    padding: 10px;
    margin-right: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

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

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

#qrcode {
    margin-top: 20px;
}

.hidden {
    display: none;
}


@media (max-width: 480px)  {
    body {
        font-size: 14px;
        padding: 10px;
    }

    .nav-bar {
        flex-direction: column;
        align-items: center;
        padding: 5px;
        /* display: none;  Esconder el menu de login / register */
    }

    .nav-button {
        margin: 5px 0;
        padding: 8px 16px;
        width: 90%;
        text-align: center;
    }

    .container {
        width: 100%;
        padding: 10px;
        margin-top: 10px;
    }

    input[type="text"] {
        width: 100%;
        margin: 10px 0;
        padding: 8px;
    }

    button {
        width: 100%;
        padding: 10px;
    }

    #qrcode {
        width: 100%;
        text-align: center;
        margin-top: 10px;
    }
}