*{
    margin: 0;
    padding: 0;
    font-size: 'Roboto', sans-serif;
    box-sizing: border-box;
}
body{
    background: rgb(0, 0, 0);
}
body::before{
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    opacity: 0.39;
    background: url("image.jpg");
    background-size: cover;
    background-position: center;
}
nav{
    /* position: fixed; */
    z-index: 1;
    padding: 15px 20px;
}
nav a img{
    width: 290px;
}
.form-warpper{
    position: absolute;
    left: 50%;
    top: 50%; 
    width: 430px;
    padding: 60px;
    border-radius: 4px;
    background: rgba(0,0,0,0.75);
    transform: translate(-50%,-50%);
}
.form-warpper h2{
    color: white;
    font-size: 2rem;
}
.form-warpper form{
    margin: 25px 0 65px;
}
form .form-control{
    position: relative;
    height: 50px;
    margin-bottom: 16px;
}
.form-control input{
    height: 100%;
    width: 100%;
    background: #333;
    outline: none;
    border: none;
    color: #fff;
    font-size: 1rem;
    border-radius: 4px;
    padding: 0 20px;
}
.form-control input:is(:focus, :valid){
    padding: 16px 20px;
    background: #444;
}
.form-control label{
    position: absolute;
    left: 20px;
    top: 50%;
    color: gray;
    pointer-events: none;
    font-size: 1rem;
    transform: translateY(-50%);
    transition: all 0.1s ease;
}
.form-control input:is(:focus, :valid) ~ label{
    font-size: 0.75rem;
    transform: translateY(-130%);
}
form button{
    width: 100%;
    padding: 16px 0;
    font-size: 1rem;
    border: none;
    outline: none;
    color: white;
    cursor: pointer;
    font-weight: 500;
    border-radius: 4px;
    background: red;
    margin: 25px 0 10px;
    transition: 0.1s ease;
}
form button:hover{
    background: red;
}
form .form-help{
    display: flex;
    justify-content: space-between;
}
form .remember-me{
    display: flex;
}
form .remember-me input{
    margin-right: 5px;
    accent-color: #b3b3b3;
}
form .form-help :where(label, a){
    font-size: 0.9rem;
}
.form-warpper :where(label, p, small, a){
    color: #b3b3b3;
}
.form-warpper p a{
    color: white;
}
.form-warpper small{
    display: block;
    margin-top: 15px;
}
.form-warpper small a{
    color: #0071eb;
}
.form-warpper a{
    text-decoration: none;
}
.form-warpper a:hover{
    text-decoration: underline;
}
@media (max-width:740px) {
    body::before{
        display: none;
    }
    nav, .form-warpper{
        padding: 20px;
    }
    nav a img{
        width: 240px;
    }
    .form-warpper{
        top: 43%;
        width: 100%;
    }
    .form-warpper form{
        margin: 25px 0 40px;
    }
}