.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /*background-color: rgba(255,255,255,0.7);*/
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* custom-flatpickr-theme.css */
.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange,
.flatpickr-day.selected.inRange,
.flatpickr-day.startRange.inRange,
.flatpickr-day.endRange.inRange,
.flatpickr-day.selected:focus,
.flatpickr-day.startRange:focus,
.flatpickr-day.endRange:focus,
.flatpickr-day.selected:hover,
.flatpickr-day.startRange:hover,
.flatpickr-day.endRange:hover,
.flatpickr-day.selected.prevMonthDay,
.flatpickr-day.startRange.prevMonthDay,
.flatpickr-day.endRange.prevMonthDay,
.flatpickr-day.selected.nextMonthDay,
.flatpickr-day.startRange.nextMonthDay,
.flatpickr-day.endRange.nextMonthDay {
    background: var(--info-main) !important; /* xanh lá */
    color: #fff !important;
    font-size: var(--font-size);
    border-color: var(--info-main) !important;
}

.sticky-header th {
    position: sticky;
    top: 0;
    /*z-index: 10;*/
}