/* Sidebar sticky com rolagem própria (>= lg) */
@media (min-width: 992px) {
    .sidebar{
        position: sticky;
        top: 84px;                        /* ajuste se tua navbar tiver outra altura */
        max-height: calc(100vh - 100px);  /* evita passar do viewport */
        overflow: auto;
        padding-right: 6px;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        align-self: flex-start;
    }
}
@media (max-width: 991.98px){
    .sidebar{ position: static; max-height: none; overflow: visible; padding-right: 0; }
}

/* Scrollbar discreta (opcional) */
.sidebar::-webkit-scrollbar{ width: 8px; }
.sidebar::-webkit-scrollbar-thumb{ background:#e0e0e0; border-radius:8px; }
.sidebar:hover::-webkit-scrollbar-thumb{ background:#cfcfcf; }