/* Notification Bell — Sidebar Header.
   Sized and styled to match the sibling .sidebar-toggle / .nav-global-manage-btn
   header buttons so the three icons line up visually. */

.notification-bell-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 8px;
    background: var(--sidebar-hover-bg);
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
    flex-shrink: 0;
    margin-right: 8px;
}

.notification-bell-btn:hover {
    background: var(--accent-primary, #2563eb);
    color: #fff;
}

.notification-bell-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 9px;
    background: var(--color-danger, #ef4444);
    color: #ffffff;
    font-size: 0.65rem;
    font-weight: 700;
    line-height: 18px;
    text-align: center;
    pointer-events: none;
}

/* Hide bell in collapsed sidebar — matches the "+" manage button, which also
   hides when there's no header room. The "<" toggle stays so the user can
   re-expand. */
.sidebar:not(.expanded) .notification-bell-btn {
    display: none;
}