@media(prefers-color-scheme: dark) {
    .login-main {
        background-color: #1f1f1f;
        margin-bottom:auto;
        border-radius:10px;
        margin-top:60px;
    }
    .input-area {
        color:#fff;
        background-color:#252325;
    }
}
@media (prefers-color-scheme: dark) and (max-width: 450px) {
    .login-main {
        background-color:#000000;
    }
}
@media(max-width: 450px) {
    .login-main {
        margin-top:0;
        padding:70px 50px;
    }
}