/* Preserve saved line breaks only in the compact PE calendar activity value.
   Rendering remains escaped; record values and desktop/detail layouts are untouched. */
#calendarBox .mobileLesson .mobileLessonDetails .mobileLessonActivity {
  white-space: pre-wrap;
}

/* Reserve the existing asymmetric button widths; equal side tracks let the
   96px registration button overlap the month on a narrow phone. */
@media (max-width: 768px) {
  body.lessonCalendarApp #calendarBox .mobileCalendarListHeader {
    grid-template-columns: 70px minmax(0, 1fr) 96px !important;
  }

  body.lessonCalendarApp #calendarBox .mobileCalendarListHeader > .calTitle {
    min-width: 0 !important;
    max-width: 100% !important;
    font-size: clamp(14px, 4vw, 18px) !important;
    line-height: 1.2 !important;
    white-space: normal !important;
    word-break: keep-all !important;
  }
}

/* A Fold-created date picker remains the same DOM after unfolding. Keep its
   original presentation and hidden contract independent of device classes. */
#calendarModal .calendarAddDateFieldCustom > input[type="hidden"] {
  display: none !important;
}

@media (min-width: 769px) {
  #calendarModal .calendarAddDateFieldCustom {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) auto !important;
    align-items: center !important;
    gap: 4px !important;
    width: 100% !important;
    min-width: 0 !important;
    height: 42px !important;
    min-height: 42px !important;
    padding: 0 7px 0 4px !important;
    overflow: hidden !important;
    border: 1px solid #d5e0e9 !important;
    border-radius: 7px !important;
    background: #fff !important;
    box-sizing: border-box !important;
  }

  #calendarModal .calendarAddDateFieldCustom > #calendarAddDateWeekday {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 38px !important;
    height: 28px !important;
    padding: 0 6px !important;
    border-radius: 7px !important;
    background: #eaf5fd !important;
    color: #1776ba !important;
    font-size: 11px !important;
    font-weight: 900 !important;
    line-height: 1 !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
  }
}

#calendarModal .calendarAddDateFieldCustom {
  grid-template-columns: minmax(0, 1fr) auto !important;
  padding-left: 4px !important;
}

#calendarModal .calendarAddDateFieldCustom > button {
  position: relative !important;
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) !important;
  align-items: center !important;
  justify-content: center !important;
  width: 100% !important;
  min-width: 0 !important;
  height: 40px !important;
  margin: 0 !important;
  padding: 0 5px !important;
  border: 0 !important;
  background: transparent !important;
  color: #203247 !important;
  font: inherit !important;
  font-size: 12px !important;
  font-weight: 800 !important;
  line-height: 1 !important;
  cursor: pointer !important;
  touch-action: manipulation !important;
  -webkit-tap-highlight-color: transparent !important;
}

#calendarModal .calendarAddDateFieldCustom > button span {
  min-width: 0 !important;
  overflow: hidden !important;
  text-align: center !important;
  text-overflow: ellipsis !important;
  white-space: nowrap !important;
}

#calendarModal .calendarAddDateFieldCustom > button i {
  position: absolute !important;
  right: 3px !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  color: #4e6c86 !important;
  font-size: 12px !important;
  font-style: normal !important;
}

#calendarModal #calendarDatePickerModal {
  position: fixed !important;
  inset: 0 !important;
  z-index: 10080 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 12px !important;
  background: rgba(20,38,54,.48) !important;
  -webkit-backdrop-filter: blur(2px) !important;
  backdrop-filter: blur(2px) !important;
  box-sizing: border-box !important;
}

#calendarModal #calendarDatePickerModal.hidden {
  display: none !important;
}

#calendarModal .calendarDatePickerDialog {
  width: min(336px, 100%) !important;
  margin: 0 !important;
  padding: 14px !important;
  border: 1px solid #d4e0eb !important;
  border-radius: 16px !important;
  background: #fff !important;
  box-shadow: 0 18px 54px rgba(17,42,65,.28) !important;
  box-sizing: border-box !important;
}

#calendarModal .calendarDatePickerDialog header {
  display: grid !important;
  grid-template-columns: 40px minmax(0, 1fr) 40px !important;
  align-items: center !important;
  gap: 7px !important;
  margin: 0 0 11px !important;
}

#calendarModal .calendarDatePickerDialog header button {
  width: 40px !important;
  height: 40px !important;
  min-height: 40px !important;
  padding: 0 !important;
  border: 1px solid #cbd9e5 !important;
  border-radius: 9px !important;
  background: #fff !important;
  color: #176eae !important;
  font-size: 24px !important;
  font-weight: 900 !important;
  line-height: 1 !important;
}

#calendarModal .calendarDatePickerDialog header strong {
  min-width: 0 !important;
  color: #203247 !important;
  font-size: 17px !important;
  font-weight: 900 !important;
  line-height: 1 !important;
  text-align: center !important;
  white-space: nowrap !important;
}

#calendarModal .calendarDatePickerWeek,
#calendarModal .calendarDatePickerGrid {
  display: grid !important;
  grid-template-columns: repeat(7, minmax(0, 1fr)) !important;
  gap: 4px !important;
}

#calendarModal .calendarDatePickerWeek {
  margin-bottom: 5px !important;
}

#calendarModal .calendarDatePickerWeek span {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  height: 25px !important;
  color: #6c8194 !important;
  font-size: 11px !important;
  font-weight: 900 !important;
}

#calendarModal .calendarDatePickerWeek span:first-child {
  color: #e45757 !important;
}

#calendarModal .calendarDatePickerWeek span:last-child {
  color: #2576cf !important;
}

#calendarModal .calendarDatePickerBlank,
#calendarModal .calendarDatePickerGrid button {
  width: 100% !important;
  min-width: 0 !important;
  aspect-ratio: 1 / 1 !important;
}

#calendarModal .calendarDatePickerGrid button {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
  border: 1px solid transparent !important;
  border-radius: 9px !important;
  background: #f5f8fb !important;
  color: #2a3d50 !important;
  font-size: 12px !important;
  font-weight: 850 !important;
  line-height: 1 !important;
  touch-action: manipulation !important;
  -webkit-tap-highlight-color: transparent !important;
}

#calendarModal .calendarDatePickerGrid button.isToday {
  border-color: #25a16b !important;
  color: #148151 !important;
}

#calendarModal .calendarDatePickerGrid button.isSelected {
  border-color: #168ee0 !important;
  background: #168ee0 !important;
  color: #fff !important;
}

#calendarModal .calendarDatePickerDialog footer {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  gap: 8px !important;
  margin-top: 12px !important;
}

#calendarModal .calendarDatePickerDialog footer button {
  width: 100% !important;
  min-width: 0 !important;
  min-height: 40px !important;
  margin: 0 !important;
  padding: 0 8px !important;
  border: 1px solid #cbd9e5 !important;
  border-radius: 9px !important;
  background: #fff !important;
  color: #2a638f !important;
  font-size: 13px !important;
  font-weight: 900 !important;
}

#calendarModal .calendarDatePickerDialog footer #calendarDatePickerToday {
  border-color: #168ee0 !important;
  background: #168ee0 !important;
  color: #fff !important;
}