.flatpickr-day.disabled{
    color : #eee;
}

.flatpickr-day.selected_range{
    background: #e6e6e6;
    border-color: #e6e6e6;
}

.flatpickr-day.selected{
    background-color: rgb(86, 159, 247);
    border-color: rgb(86, 159, 247);
}