.form {
    display: flex;
    flex-direction: column;
    align-items: center;
}


.form > .form-group {
    margin-top: 30px;
    margin-bottom: 30px;
    width: 75%
}

.form input {
    font-size: 1.5rem;
    font-family: inherit;
    color: inherit;
    padding: 1.5rem 2rem;
    border-radius: 2px;
    border: none;
    border-bottom: 3px solid #181c3b;
    width: 100%;
    display: block;
    transition: all 0.3s;

}

.form input:focus {
    outline: none;
    box-shadow: 0 1rem 2rem rgba(0,0,0,0.1);
    border-bottom: 3px solid #6f8e51;

}

.form textarea {
    margin-top:20px;
    width:100%;
    height: 200px;
    border-radius: 3px;
    border: 3px solid #181c3b;
    font-size: 1.5rem;
    font-family: inherit;
    color: inherit;
    padding: 1.5rem 2rem;
    transition: all 0.3s;
}

.form textarea:focus {
    outline: none;
    box-shadow: 0 1rem 2rem rgba(0,0,0,0.1);
    border: 3px solid #6f8e51;

}


.form input::-webkit-input-placeholder, .form textarea::-webkit-input-placeholder {
    color: black;
    transition: 0.1s;
    visibility: visible;
}

.form input:focus::-webkit-input-placeholder, .form textarea:focus::-webkit-input-placeholder {
    visibility: hidden;

} 

.form label {
    font-size: 1.2rem;
    font-weight: 700;
    margin-left: 2rem;
    margin-top: 0.7rem;
    display: block;
    transition: all 0.3s;
    color: #6f8e51;
    visibility: hidden;
    opacity: 0;
}

.form input:focus + label, .form textarea:focus + label {
    opacity: 1;
    visibility: visible;
    transform: translateY(1rem);
}