#calendar-status {
  margin-bottom: 0.75rem;
  color: var(--bs-secondary-color, #5c636a);
}

#calendar-status:empty {
  display: none;
}

#ec {
  min-height: 44rem;
  --ec-border-color: #d9dee3;
  --ec-today-bg-color: #f3f7fb;
  --ec-button-bg-color: #fff;
  --ec-button-border-color: #adb5bd;
  --ec-button-text-color: #263746;
  --ec-button-active-bg-color: #e8edf2;
}

.ec-event.lecture,
.calendar-key-lecture {
  --ec-event-bg-color: #31688e;
  --ec-event-border-color: #285878;
}

.ec-event.exercise,
.calendar-key-exercise {
  --ec-event-bg-color: #2a9d8f;
  --ec-event-border-color: #238478;
}

.ec-event.group-presentation,
.calendar-key-group-presentation {
  --ec-event-bg-color: #7b5ea7;
  --ec-event-border-color: #654d89;
}

.calendar-dialog {
  width: min(34rem, calc(100% - 2rem));
  border: 0;
  border-radius: 0.5rem;
  padding: 1.25rem;
  box-shadow: 0 1rem 3rem rgb(0 0 0 / 25%);
}

.calendar-dialog::backdrop {
  background: rgb(0 0 0 / 40%);
}

.calendar-dialog-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.calendar-dialog-header h2 {
  margin: 0 0 1rem;
  font-size: 1.35rem;
}

.calendar-dialog-close {
  border: 0;
  background: transparent;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
}

.calendar-detail-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.4rem 1rem;
  margin: 0;
}

.calendar-detail-list dt {
  font-weight: 600;
}

.calendar-detail-list dd {
  margin: 0;
}

.calendar-materials {
  margin: 0.35rem 0 0;
  padding-left: 1.25rem;
}

@media (max-width: 640px) {
  #ec {
    min-height: 38rem;
    font-size: 0.88rem;
  }

  .ec-header {
    gap: 0.4rem;
  }

  .ec-header > div {
    flex-wrap: wrap;
  }

  .calendar-detail-list {
    grid-template-columns: 1fr;
  }

  .calendar-detail-list dd + dt {
    margin-top: 0.4rem;
  }
}