.mobile-tabbar {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: 10px;
    z-index: 80;
    display: none;
    gap: 10px;
    padding: 10px;
    border-radius: 18px;
    background: rgba(7, 14, 27, 0.92);
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: 0 18px 38px rgba(2, 6, 23, 0.38);
    backdrop-filter: blur(16px);
}

.mobile-tab {
    flex: 1;
    min-height: 44px;
    border-radius: 12px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    background: rgba(10, 18, 34, 0.84);
    color: var(--text-soft);
    font-family: var(--font-display);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.mobile-tab.active,
.mobile-tab-link {
    color: var(--text);
}

@media (max-width: 860px) {
    .mobile-tabbar { display: flex; }

    .office-shell[data-mobile-tab='office'] .mobile-panel-flow,
    .office-shell[data-mobile-tab='office'] .mobile-panel-lobster,
    .office-shell[data-mobile-tab='flow'] .mobile-panel-office,
    .office-shell[data-mobile-tab='flow'] .mobile-panel-lobster,
    .office-shell[data-mobile-tab='lobster'] .mobile-panel-office,
    .office-shell[data-mobile-tab='lobster'] .mobile-panel-flow {
        display: none;
    }
}