/* Título */
.sidebar_first .block-menu h2 {
    color: var(--primary);
    font-size: 1.23rem;
    font-weight: 700;
    margin: 0.5rem 0 1.2rem 0;
    letter-spacing: -0.5px;
    border-bottom: 1.5px solid #e5eaf1;
    padding-bottom: 0.4rem;
}

/* Lista de opciones */
.sidebar_first .block-menu ul.nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding-left: 0;
    margin: 0;
    list-style: none;
}

/* Cada ítem */
.sidebar_first .block-menu li.nav-item {
    margin: 0;
}

/* Enlaces */
.sidebar_first .block-menu a.nav-link {
    display: block;
    color: #199dcd;
    font-size: 1.12rem;
    font-weight: 500;
    padding: 0.45rem 0.2rem 0.45rem 5px;
    text-decoration: none;
    border-radius: 6px;
    transition: background 0.17s, color 0.15s;
    margin-bottom: 0.1rem;
}

/* Activo */
.sidebar_first .block-menu a.nav-link.active,
.sidebar_first .block-menu li.nav-item.active>a.nav-link {
    background: #e6f4fa;
    color: #1577a6;
    font-weight: 600;
}

/* Hover */
.sidebar_first .block-menu a.nav-link:hover {
    background: #e6f4fa;
    color: #1577a6;
}

/* Opcional: separar el bloque visualmente */
.sidebar_first .block-menu {
    margin-bottom: 0;
}

@media (max-width: 700px) {
    .sidebar_first {
        margin: 0 auto 1.5rem auto;
        min-width: 100%;
        max-width: 98vw;
        border-radius: 8px;
        padding: 0;
    }

    .sidebar_first .section {
        padding: 0.5rem 0.7rem 1.1rem 0.7rem;
    }
}