.form-simples {
    display: flex;
    width: 50%;
    height: 30%;
    background-color: rgba(219, 219, 219, 0.418);
    
    text-align: center;

    flex-direction: column;
    align-items: center;
    justify-content: center;

    border-radius: 15px;
    box-shadow: 1px 1px 1px rgba(255, 255, 255, 0.24);
}

.form-simples .form .flex-left {
    display: flex;
    
    align-items: flex-start;
    justify-content: flex-start;
}

.form-simples h3 {
    display: flex;
    padding: 30px;
    color: rgb(197, 34, 238);
    text-shadow: 1px 1px 1px rgb(102, 4, 105);
    font-weight: 400;
    font-size: 1.5rem;
}

.form-simples form {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 80%;
    height: 50%;
}

.form-simples form input {
    width: 100%;
    height: 40px;
    font-size: 1.1rem;
    padding: 5px;
    border: none;
    border-radius: 5px;
}

.contato-gratis {
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 5px;
    margin: 20px;
    padding: 20px 40px 20px;
    font-weight: 700;
    color: white;
    background-color: rgb(136, 223, 22);
    transition: background-color 0.2s;
}

.contato-gratis:hover {
    background-color: rgb(116, 194, 15);
    cursor: pointer;
}

/* EFEITOS */

.label-float {
    position: relative;
    padding-top: 13px;
    
    width: 100%;
    height: 100%;
}

.label-float input {
    border: 0;
    border-bottom: 2px solid lightgrey;
    outline: none;
    width: 100%;
    font-size: 16px;
    transition: all .3s ease-out;
    -webkit-transition: all .3s ease-out;
    -moz-transition: all .3s ease-out;
    -webkit-appearance: none;
    border-radius: 0;
}

.label-float input::placeholder {
    color: transparent;
}

.label-float label {
    pointer-events: none;
    position: absolute;
    top: 0;
    left: 0;
    margin-top: 23px;
    margin-left: 5px;
    transition: all .3s ease-out;
    -webkit-transition: all .3s ease-out;
    -moz-transition: all .3s ease-out;

    display: flex;
    align-items: center;
    justify-content: center;
}

.label-float input:required:invalid+label {
    color: rgb(145, 144, 144);
}

.label-float input:required:invalid+label:before {
    content: ' ';
    color: red;
}

.label-float input:focus+label, .label-float input:not(:placeholder-shown)+label {
    font-size: 13px;
    margin-top: -5px;
    color: #3951b2;
}

@media (max-width: 900px) {
    .form-simples {
        width: 90%;
        height: 30%;
    }
}