.flatpickr-monthSelect-month.selected,
.flatpickr-monthSelect-month.startRange,
.flatpickr-monthSelect-month.endRange {
    background-color: hsl(184, 90%, 34%);
    box-shadow: none;
    color: #fff;
    border-color: hsl(184, 90%, 34%);
}

.flatpickr-day.bookingRange-selected,
.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: hsl(184, 90%, 34%);
    -webkit-box-shadow: none;
    box-shadow: none;
    color: #fff;
    border-color: hsl(184, 90%, 34%);
}
.flatpickr-day.bookingRange {
    background: hsla(184, 90%, 34%, 0.1);
    border-color: hsla(184, 90%, 34%, 0.5);
}
.flatpickr-day.bookingRange:hover {
    background: hsla(184, 90%, 34%, 0.8);
    border-color: hsl(184, 90%, 34%);
}