/* ============================================================
   Ajustes visuales personalizados (menú lateral y chat)
   ============================================================ */

/* ---------- Sidebar / menú ---------- */
.main-sidebar {
    box-shadow: 0 0 18px rgba(0, 0, 0, .05);
}

.sidebar .nav-sidebar .nav-item {
    margin-bottom: 1px;
}

.sidebar .nav-sidebar > .nav-item > .nav-link {
    border-radius: 10px;
    margin: 2px 10px;
    padding: .65rem .85rem;
    transition: background-color .18s ease, color .18s ease, box-shadow .18s ease;
}

.sidebar .nav-sidebar > .nav-item > .nav-link:hover {
    background-color: rgba(0, 0, 0, .04);
}

.sidebar-light-primary .nav-sidebar > .nav-item > .nav-link.active {
    box-shadow: 0 4px 10px rgba(60, 141, 188, .25);
    font-weight: 600;
}

.sidebar .nav-sidebar .nav-icon {
    opacity: .9;
}

/* Submenús (treeview): indentación, guía vertical y estados suaves */
.sidebar .nav-treeview {
    margin: 2px 0 6px;
    padding-left: 0;
    position: relative;
}

.sidebar .nav-treeview::before {
    content: "";
    position: absolute;
    left: 23px;
    top: 2px;
    bottom: 8px;
    width: 1px;
    background: rgba(0, 0, 0, .08);
}

.sidebar .nav-treeview > .nav-item > .nav-link {
    border-radius: 8px;
    margin: 1px 10px 1px 26px;
    padding: .5rem .75rem;
    font-size: .9rem;
    transition: background-color .15s ease, color .15s ease;
}

.sidebar .nav-treeview > .nav-item > .nav-link:hover {
    background-color: rgba(0, 0, 0, .045);
}

.sidebar .nav-treeview > .nav-item > .nav-link.active {
    background-color: rgba(60, 141, 188, .12);
    color: #3c8dbc;
    font-weight: 600;
}

/* Flecha del submenú con giro suave */
.sidebar .nav-sidebar .nav-link > .right,
.sidebar .nav-sidebar .nav-link > p > .right {
    transition: transform .2s ease;
}

.sidebar .nav-sidebar .menu-open > .nav-link > .right,
.sidebar .nav-sidebar .menu-open > .nav-link > p > .right {
    transform: rotate(-90deg);
}

/* Encabezados de sección */
.sidebar .nav-sidebar .nav-header {
    font-size: .72rem;
    letter-spacing: .04em;
    text-transform: uppercase;
    opacity: .55;
    padding: .9rem 1.1rem .35rem;
}

/* ---------- Filtro de bandeja en el chat ---------- */
.chat-inbox-filter {
    padding: .6rem .9rem .75rem;
    border-bottom: 1px solid rgba(0, 0, 0, .075);
    background: #fbfbfb;
}

.chat-inbox-filter label {
    display: block;
    margin-bottom: .3rem;
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .02em;
    text-transform: uppercase;
    color: #8a92a6;
}

.chat-inbox-filter select.form-control {
    height: auto;
    min-height: 38px;
    line-height: 1.4;
    padding: .45rem .7rem;
    font-size: .9rem;
    border-radius: 8px;
}