.container-bg {
    height: 100vh;
}

.container-principal {
    padding: 3rem 4rem;
}

@media (max-width: 576px) {
    .container-principal {
        padding: 3rem 2rem !important;
    } 
}

.container-principal img {
    width: 150px;
}

.container-principal h1 {
    color: #0070ae;
    font-size: 1rem;
    margin-top: .4rem;
}

.container-principal h2 {
    color: #4d7880;
    font-size: 1.1rem;
    margin-top: 1rem;
    margin-bottom: 2.2rem;
    width: 100%;
    text-align: justify;
}

.container-principal h3 {
    color: #0070ae;
    font-size: 1rem;
    margin-top: .6rem;
}

.container-principal h3 a {
    color: #0070ae;
    font-weight: 600;
    text-decoration: none;
}

.container-principal h3 a:hover {
    text-decoration: underline;
}

.container-principal form {
    width: 100%;
    display: flex;
    flex-direction: column;
}

.container-principal .form-group {
    position: relative;
    width: 100%;
    margin-bottom: 1.5rem;
}

.container-principal form label {
    position: absolute;
    top: 11%;
    left: 0;
    transform: translateY(-11%);
    color: #4d7880;
    font-size: 1rem;
    pointer-events: none;
    transition: all 0.3s ease;
}

.container-principal form input {
    font-size: 1rem;
    margin: 0 !important;
    padding-top: 4px !important;
    padding-left: 5px !important;
    line-height: 40px;
    height: 40px;
    width: 100%;
    border: none;
    border-bottom: 1.3px orange solid !important;
    color: #4d7880;
    background: transparent;
}

.container-principal form input:focus {
    outline: 0px !important;
}

.container-principal form input:focus + label,
.container-principal form input:not(:placeholder-shown) + label {
    top: -15px;
    font-size: 0.85rem;
}

button.botoes {
    margin-top: 1.5rem;
    background-color: #f39200;
    color: white;
    font-weight: 500;
    width: 100%;
    border: none;
    padding: .5rem 1rem;
    font-size: 1rem;
    border-radius: .2rem;
    margin-bottom: .4rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button.botoes:hover {
    background-color: #173e68;
    color: white;
}

button.botoes:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}