fix(dark mode): flatpickr colors

src/styles/theme/_index.scss

@@ -7,4 +7,5 @@
 @import "form";
 @import "link-share";
 @import "loading";
-@import "notification";
+@import "notification";
+@import "flatpickr";

src/styles/theme/flatpickr.scss

@@ -0,0 +1,221 @@
+// Flatpickr overrides to use css custom properties and enable styling it
+
+.flatpickr-calendar {
+  background: var(--white);
+  box-shadow: 1px 0 0 var(--grey-200), -1px 0 0 var(--grey-200), 0 1px 0 var(--grey-200), 0 -1px 0 var(--grey-200), 0 3px 13px rgba(0, 0, 0, 0.08);
+}
+
+.flatpickr-calendar.multiMonth .flatpickr-days .dayContainer:nth-child(n+2) .flatpickr-day.inRange:nth-child(7n+1) {
+  box-shadow: -2px 0 0 var(--grey-200), 5px 0 0 var(--grey-200);
+}
+
+.flatpickr-calendar.hasTime .flatpickr-time {
+  border-top: 1px solid var(--grey-200);
+}
+
+.flatpickr-calendar.arrowTop:before {
+  border-bottom-color: var(--grey-200);
+}
+
+.flatpickr-calendar.arrowTop:after {
+  border-bottom-color: var(--white);
+}
+
+.flatpickr-calendar.arrowBottom:before {
+  border-top-color: var(--grey-200);
+}
+
+.flatpickr-calendar.arrowBottom:after {
+  border-top-color: var(--white);
+}
+
+.flatpickr-months .flatpickr-month,
+.flatpickr-months .flatpickr-prev-month,
+.flatpickr-months .flatpickr-next-month {
+  color: var(--text);
+  fill: var(--grey-900);
+}
+
+.flatpickr-months .flatpickr-prev-month:hover,
+.flatpickr-months .flatpickr-next-month:hover {
+  color: var(--grey-400);
+}
+
+.flatpickr-months .flatpickr-prev-month:hover svg,
+.flatpickr-months .flatpickr-next-month:hover svg {
+  fill: var(--primary);
+}
+
+.numInputWrapper span {
+  border: 1px solid var(--grey-200);
+}
+
+.numInputWrapper span:hover {
+  background: var(--grey-800);
+}
+
+.numInputWrapper span:active {
+  background: var(--grey-800);
+}
+
+.numInputWrapper span.arrowUp:after {
+  border-bottom: 4px solid var(--grey-200);
+}
+
+.numInputWrapper span.arrowDown:after {
+  border-top: 4px solid var(--grey-200);
+  top: 40%;
+}
+
+.numInputWrapper span svg path {
+  fill: var(--grey-800);
+}
+
+.numInputWrapper:hover {
+  background: var(--grey-100);
+}
+
+.flatpickr-current-month span.cur-month:hover {
+  background: var(--grey-100);
+}
+
+.flatpickr-current-month .numInputWrapper span.arrowUp:after {
+  border-bottom-color: var(--grey-900);
+}
+
+.flatpickr-current-month .numInputWrapper span.arrowDown:after {
+  border-top-color: var(--grey-900);
+}
+
+.flatpickr-current-month input.cur-year[disabled],
+.flatpickr-current-month input.cur-year[disabled]:hover {
+  color: var(--grey-800);
+}
+
+.flatpickr-current-month .flatpickr-monthDropdown-months:hover {
+  background: var(--grey-100);
+}
+
+span.flatpickr-weekday {
+  color: var(--grey-600);
+}
+
+.dayContainer + .dayContainer {
+  box-shadow: -1px 0 0 var(--grey-200);
+}
+
+.flatpickr-day {
+  color: var(--grey-500);
+}
+
+.flatpickr-day.inRange,
+.flatpickr-day.prevMonthDay.inRange,
+.flatpickr-day.nextMonthDay.inRange,
+.flatpickr-day.today.inRange,
+.flatpickr-day.prevMonthDay.today.inRange,
+.flatpickr-day.nextMonthDay.today.inRange,
+.flatpickr-day:hover,
+.flatpickr-day.prevMonthDay:hover,
+.flatpickr-day.nextMonthDay:hover,
+.flatpickr-day:focus,
+.flatpickr-day.prevMonthDay:focus,
+.flatpickr-day.nextMonthDay:focus {
+  background: var(--grey-200);
+  border-color: var(--grey-200);
+}
+
+.flatpickr-day.today {
+  border-color: var(--grey-400);
+}
+
+.flatpickr-day.today:hover,
+.flatpickr-day.today:focus {
+  border-color: var(--grey-400);
+  background: var(--grey-400);
+  color: var(--white);
+}
+
+.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(--primary);
+  color: var(--white);
+  border-color: var(--primary);
+}
+
+.flatpickr-day.selected.startRange + .endRange:not(:nth-child(7n+1)),
+.flatpickr-day.startRange.startRange + .endRange:not(:nth-child(7n+1)),
+.flatpickr-day.endRange.startRange + .endRange:not(:nth-child(7n+1)) {
+  box-shadow: -10px 0 0 var(--primary);
+}
+
+.flatpickr-day.inRange {
+  box-shadow: -5px 0 0 var(--grey-200), 5px 0 0 var(--grey-200);
+}
+
+.flatpickr-day.flatpickr-disabled,
+.flatpickr-day.flatpickr-disabled:hover,
+.flatpickr-day.prevMonthDay,
+.flatpickr-day.nextMonthDay,
+.flatpickr-day.notAllowed,
+.flatpickr-day.notAllowed.prevMonthDay,
+.flatpickr-day.notAllowed.nextMonthDay {
+  color: var(--grey-300);
+}
+
+.flatpickr-day.flatpickr-disabled,
+.flatpickr-day.flatpickr-disabled:hover {
+  color: var(--grey-800);
+}
+
+.flatpickr-day.week.selected {
+  box-shadow: -5px 0 0 var(--primary), 5px 0 0 var(--primary);
+}
+
+.flatpickr-weekwrapper .flatpickr-weeks {
+  box-shadow: 1px 0 0 var(--grey-200);
+}
+
+.flatpickr-weekwrapper span.flatpickr-day,
+.flatpickr-weekwrapper span.flatpickr-day:hover {
+  color: var(--grey-300);
+}
+
+.flatpickr-time .numInputWrapper span.arrowUp:after {
+  border-bottom-color: var(--grey-500);
+}
+
+.flatpickr-time .numInputWrapper span.arrowDown:after {
+  border-top-color: var(--grey-500);
+}
+
+.flatpickr-time input {
+  color: var(--grey-500);
+}
+
+.flatpickr-time .flatpickr-time-separator,
+.flatpickr-time .flatpickr-am-pm {
+  color: var(--grey-500);
+}
+
+.flatpickr-time input:hover,
+.flatpickr-time .flatpickr-am-pm:hover,
+.flatpickr-time input:focus,
+.flatpickr-time .flatpickr-am-pm:focus {
+  background: var(--grey-100);
+}