/* Hide logo on login screen */
#login img, .login-logo, .logo img {
    display: none !important;
}

/* Hide logo and text in the dashboard sidebar */
.side-nav .logo, .logo i, .logo span {
    display: none !important;
}

/* If you want to hide the "File Browser" title on the login box specifically */
#login h1 {
    display: none !important;
}