/* Keep the existing high-contrast SolidCP theme and change only its backdrop. */
body .page-login {
    background:
        linear-gradient(135deg, rgba(5, 11, 17, .84), rgba(7, 17, 24, .72) 45%, rgba(10, 21, 30, .82)),
        url("../Images/portal-background.png") center center / cover fixed no-repeat !important;
}

body:not(.page-login) {
    background:
        linear-gradient(rgba(26, 32, 38, .74), rgba(26, 32, 38, .74)),
        url("../Images/portal-background.png") center center / cover fixed no-repeat !important;
}

body:not(.page-login) .main-content,
body:not(.page-login) #ContentOneColumn,
body:not(.page-login) #col-right,
body:not(.page-login) #BodyWrapper,
body:not(.page-login) .content-wrapper {
    background: transparent !important;
}