/* Global indentation for ALL sidebar submenu items */
.main-sidebar .nav-sidebar .nav-treeview > .nav-item > .nav-link {
    padding-left: 25px !important;   /* Default is around 20px */
}

/* Optional: slightly dim submenu items */
.main-sidebar .nav-sidebar .nav-treeview > .nav-item > .nav-link i {
    opacity: 0.9;
}