body.login-page {
    background: url('/assets/img/login-bg.jpg') no-repeat center center fixed;
    background-size: cover;
}

/* overlay gelap agar form jelas */
body.login-page::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: -1;
}