body {
    background-image: url('../../images/happy-students.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-color: #eee;
    width: 100%;
    height: 100vh;
    overflow-y: auto;
    position: relative;
}

body::before {
    background-color: rgba(0,0,0,0.7);
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    content: "";
    z-index: -1;
}

header {
    box-shadow: unset!important;
}


.hero::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.1);
}

.form{
    width: 92%;
    max-width: 500px;
    margin: 40px auto;
    border-radius: 10px;
    background-color: var(--background);
    padding: 30px;
    transition: 0.2s;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}

@media screen and (max-width: 700px) {
    .form {
        top: 40%
    }
}