@demark-pro/react-booking-calendar/dist/react-booking-calendar.css

A responsive customizable React Booking calendar with overbooking protection

.calendar__calendar-container {
  display: block;
  background-color: #fff;
  font-family: "Helvetica Neue", helvetica, arial, sans-serif;
  font-size: 1rem;
  color: currentcolor;
  max-width: 550px;
}

.calendar__month-container {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
  -ms-flex-direction: row;
  flex-direction: row;
  padding: 0;
  position: relative;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.calendar__month-content {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
  -ms-flex-direction: row;
  flex-direction: row;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 1rem;
  text-transform: capitalize;
  font-weight: 500;
}

.calendar__calendar-container:not([data-scrollable]) .calendar__month-content[data-some-month] span:first-child {
  color: #007aff;
}

.calendar__calendar-container:not([data-scrollable]) .calendar__month-content[data-some-year] span:nth-child(2) {
  color: #007aff;
}

.calendar__calendar-container[data-scrollable] .calendar__month-content {
  gap: 0;
}

.calendar__calendar-container[data-scrollable] .calendar__month-content span:nth-child(2) {
  font-size: 0.9rem;
  font-weight: 400;
}

.calendar__calendar-container[data-scrollable] .calendar__month-content[data-some-year] span:nth-child(2) {
  display: none;
}

.calendar__month-arrow-back,
.calendar__month-arrow-next {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  width: 14.2857142857%;
  height: 50px;
  cursor: pointer;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  background: none;
  border: none;
  overflow: hidden;
  padding: 0;
  text-indent: -999em;
  appearance: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
.calendar__month-arrow-back svg,
.calendar__month-arrow-next svg {
  fill: currentcolor;
  width: 30px;
  height: 30px;
}

.calendar__month-arrow-next svg {
  -webkit-transform: rotate(180deg);
  -ms-transform: rotate(180deg);
  transform: rotate(180deg);
  fill: currentcolor;
}

.calendar__week-container {
  position: -webkit-sticky;
  position: sticky;
  top: 0px;
  left: 0px;
  right: 0px;
  z-index: 10;
  width: 100%;
}

.calendar__week-content {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-flex: 0;
  -ms-flex-positive: 0;
  flex-grow: 0;
  font-size: 0.9rem;
  text-transform: capitalize;
  padding: 0.5rem 0px;
  color: currentcolor;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.calendar__week-content[data-weekend] {
  color: red;
}

.calendar__week-container,
.calendar__days-container {
  display: -ms-grid;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}

.calendar__day-container {
  position: relative;
  cursor: pointer;
  appearance: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

.calendar__day-container::after {
  content: "";
  display: block;
  padding-bottom: 100%;
}

.calendar__day-content {
  position: absolute;
  inset: 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  color: currentcolor;
  z-index: 20;
  font-size: 0.95rem;
}

.calendar__day-container[data-selected] {
  color: #fff;
}

.calendar__day-selection,
.calendar__day-reservation {
  position: absolute;
  top: 15%;
  bottom: 15%;
  right: 0;
  left: 0;
}

.calendar__day-selection {
  background-color: #2c2c2c;
  z-index: 10;
}

.calendar__day-reservation {
  background-color: #f2f1ef;
  z-index: 0;
}

.calendar__day-container[data-selected] {
  color: #fff;
}

.calendar__day-container[data-reserved],
.calendar__day-container[data-past]:not(:has(> .calendar__day-today)) {
  color: #a3a2a1;
}

.calendar__calendar-container[data-scrollable] .calendar__day-container[data-selected][data-start-month] .calendar__day-selection,
.calendar__calendar-container[data-scrollable] .calendar__day-container[data-reserved][data-start-month] .calendar__day-reservation,
.calendar__day-container:not([data-selected]) + .calendar__day-container .calendar__day-selection,
.calendar__day-container:not([data-reserved]) + .calendar__day-container .calendar__day-reservation {
  border-top-left-radius: 10px;
  border-bottom-left-radius: 10px;
  left: 15%;
}

.calendar__calendar-container[data-scrollable] .calendar__day-container[data-selected][data-end-month] .calendar__day-selection,
.calendar__calendar-container[data-scrollable] .calendar__day-container[data-reserved][data-end-month] .calendar__day-reservation,
.calendar__day-container[data-selected]:not(:has(+ [data-selected])) .calendar__day-selection,
.calendar__day-container[data-reserved]:not(:has(+ [data-reserved])):not(:last-child) .calendar__day-reservation {
  border-top-right-radius: 10px;
  border-bottom-right-radius: 10px;
  right: 15%;
}

/* today */
.calendar__day-today {
  position: absolute;
  inset: 15%;
  border-radius: 10px;
  -webkit-transform: scale(1);
  -ms-transform: scale(1);
  transform: scale(1);
  border: 1px solid #2c2c2c;
  z-index: 30;
}

.calendar__calendar-container[data-scrollable] {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  -webkit-box-pack: start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  height: 100%;
}

.calendar__calendar-container[data-scrollable] .calendar__days-container {
  display: block;
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  width: 100%;
}

.calendar__calendar-container[data-scrollable] .calendar__month-container {
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.calendar__calendar-container[data-scrollable] .calendar__month-content {
  font-size: 1rem;
  font-weight: 500;
}