body{
    background-image: url(../img/Png.jpeg);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat; 
}
 .form-group {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 10px;
        }

        .btn-submit {
    display: block;
    width: 100%;
    padding: 15px;
    background-color: var(--cor-principal);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
    margin-top: 30px;
    text-decoration: none;
    text-align: center;
}