/* ==========================================================================
   SEMESTER CLASS CALENDAR POPUP MODAL (css/calendar-popup.css)
   ========================================================================== */

.calendar-popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(40, 66, 77, 0.72);
  overflow: hidden;
}

.calendar-popup-overlay[hidden] {
  display: none;
}

.calendar-popup-card {
  display: flex;
  flex-direction: column;
  width: 90%;
  max-width: 880px;
  height: 85%;
  background: var(--card-white);
  border-radius: 12px;
  border-top: 5px solid var(--primary-blue);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  padding: 28px 28px 24px;
}

.calendar-popup-grid-wrap {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.calendar-popup-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.calendar-popup-header h2 {
  margin: 0;
  font-family: "Times New Roman", Times, serif;
  font-weight: normal;
  font-size: 1.6rem;
  color: var(--primary-blue);
}

.calendar-popup-close {
  background: transparent;
  border: 0;
  font-size: 2rem;
  line-height: 1;
  color: var(--primary-blue);
  cursor: pointer;
  padding: 0 4px;
}

.calendar-popup-close:hover {
  color: var(--text-dark);
}

.calendar-popup-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.calendar-popup-nav-btn {
  background: var(--primary-blue);
  color: var(--btn-text-white);
  border: 0;
  border-radius: 8px;
  width: 40px;
  height: 40px;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.calendar-popup-nav-btn:hover:not(:disabled) {
  transform: scale(1.05);
}

.calendar-popup-nav-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.calendar-popup-month {
  font-family: "Times New Roman", Times, serif;
  font-size: 1.35rem;
  color: var(--text-dark);
  font-weight: bold;
}

.calendar-popup-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  grid-template-rows: auto;
  grid-auto-rows: minmax(30px, 1fr);
  gap: 6px;
  height: 100%;
}

.calendar-popup-dow {
  text-align: center;
  font-size: 0.75rem;
  font-weight: bold;
  color: var(--primary-blue);
  padding: 4px 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.calendar-popup-day {
  min-height: 0;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 6px;
  padding: 5px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow: hidden;
}

.calendar-popup-day.empty {
  background: transparent;
  border: 0;
}

.calendar-popup-day.other-month {
  background-color: #f5ead6;
}

.calendar-popup-day-num {
  font-size: 0.75rem;
  color: var(--text-subheading-gray);
  text-align: right;
  line-height: 1;
}

.calendar-popup-chip {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-size: 0.62rem;
  line-height: 1.2;
  border-radius: 4px;
  padding: 2px 5px;
  color: #fff;
}

.chip-name {
  font-weight: bold;
}

.chip-time {
  white-space: nowrap;
  font-size: 0.56rem;
  line-height: 1.2;
}

.chip-foundations_a { background-color: #264653; color: #fff; }
.chip-foundations_b { background-color: #4a7c99; color: #fff; }
.chip-foundations_c { background-color: #93b5c4; color: #203b49; }
.chip-little_lambs_a { background-color: #a5772b; color: #fff; }
.chip-little_lambs_b { background-color: #d8b468; color: #463313; }
.chip-barn_owls { background-color: #4c5361; color: #fff; }
.chip-sacred_art { background-color: #7d2434; color: #fff; }
.chip-art_cafe { background-color: #5f8060; color: #fff; }

.calendar-popup-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.calendar-popup-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  color: var(--text-dark);
}

.calendar-popup-legend-swatch {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.15);
}

.calendar-popup-note {
  margin: 14px 0 0 0;
  font-size: 0.8rem;
  color: var(--text-subheading-gray);
  font-style: italic;
}

@media (max-width: 640px) {
.btnClasses#open-calendar-popup {
  display: block;
  width: fit-content;
  margin: 16px auto 0;
}

.calendar-popup-overlay {
    padding: 10px;
    align-items: flex-start;
  }

  .calendar-popup-card {
    width: 94%;
    height: 90%;
    padding: 18px 12px 16px;
  }

  .calendar-popup-grid {
    gap: 3px;
  }

  .calendar-popup-day {
    min-height: 0;
    padding: 3px;
  }

  .calendar-popup-chip {
    font-size: 0.52rem;
    padding: 1px 3px;
  }

  .chip-time {
    font-size: 0.47rem;
  }

  .calendar-popup-month {
    font-size: 1.1rem;
  }
}