@media (max-width: 768px) {

    .fc .fc-toolbar {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }

    .fc-toolbar-chunk {
        width: 100%;
        display: flex;
        justify-content: center;
    }
}

.fc-view-harness {
    width: 100%;
    overflow-x: auto;
}
.fc-view-harness .fc-timeGridWeek-view {
    min-width: 900px;
}