.sidebar {
    width: 400px !important; /* aumenta a largura da sidebar */
}

.main-panel {
    width: calc(100% - 400px) !important; /* ajusta a área da direita */
    margin-left: 400px !important;
}

.sidebar.sidebar-style-2[data-background-color="light"].mini {
    width: 80px !important;
}

.main-panel {
    margin-left: 400px !important;
    width: calc(100% - 400px) !important;
}
@media (max-width: 991px) {
    .sidebar {
        width: 260px !important; /* largura quando abre no mobile */
    }

    .main-panel {
        margin-left: 0 !important; /* no mobile a main fica 100% */
        width: 100% !important;
    }
}