#contact .btn,
#contact button[type="submit"],
#contact a.btn {
    text-align: center !important;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #0099d7 !important;
    background: linear-gradient(to right,
            #0099d7,
            #02a3ee) !important;
    height: 46px;
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

#contact .btn:active,
#contact button[type="submit"]:active,
#contact a.btn:active {
    color: #fff !important;
    background-color: #0099d7 !important;
    border-color: #0099d7 !important;
    box-shadow: 0 0 0 0.2rem rgba(0, 153, 215, 0.5) !important;
    outline: none !important;
}

#contact button {
    margin-top: 10%;
}

/* Responsividade da caixa de login */
.divMeio {
    width: 70% !important;
    max-width: 100%;
    margin: auto;
}

/* Ajustes para tablets */
@media (max-width: 991.98px) {
    .divMeio {
        width: 85% !important;
    }

    #contact .card-body {
        padding: 2rem !important;
    }

    #contact .row .col-md-6 {
        margin-bottom: 1rem;
    }
}

/* Ajustes para mobile */
@media (max-width: 768px) {
    .divMeio {
        width: 95% !important;
    }

    #contact .card-body {
        padding: 1.5rem !important;
    }

    #contact .row {
        margin: 0;
    }

    #contact .col-md-6 {
        padding-left: 0;
        padding-right: 0;
        margin-bottom: 1.5rem;
    }

    #contact button {
        margin-top: 5% !important;
        width: 100%;
    }

    #contact .btn {
        width: 100%;
        margin-bottom: 1rem;
    }
}

/* Ajustes para telas muito pequenas */
@media (max-width: 500px) {
    .divMeio {
        width: 90% !important;
    }

    #contact .card-body {
        padding: 1rem !important;
    }

    #contact h2 {
        font-size: 1.5rem !important;
        padding-top: 1rem !important;
        margin-top: 1rem !important;
    }

    #contact .lead {
        font-size: 0.9rem !important;
        padding: 0 1rem !important;
    }

    #contact .md-form {
        margin-bottom: 1rem;
    }

    #contact .md-form input {
        font-size: 0.9rem;
    }

    #contact .md-form label {
        font-size: 0.85rem;
    }
}