.calendar-container {
  --white: #fff;
  --main: #eaedf0;
  --accent: #6297bb;
  --accent-2: #ebedf0;
  display: inline-block;
  background-color: var(--white);
  border-radius: 35px;
  padding: 0 1em;
  margin-top: 2em;
}

.calendar-container header {
  margin: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
}
.calendar-container .header-display {
  display: flex;
  align-items: center;
}

.calendar-container .header-display p {
  color: var(--accent);
  margin: 5px;
  font-size: 1.2rem;
  word-spacing: 0.5rem;
}

.calendar-container pre {
  padding: 10px;
  margin: 0;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--accent);
}

.calendar-container .days,
.calendar-container .week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin: auto;
  padding: 0 20px;
  justify-content: space-between;
}
.calendar-container .week div,
.calendar-container .days div {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 3rem;
  width: 3em;
}
.calendar-container .days div:hover {
  background: var(--accent-2);
  color: #6297bb; 
  cursor: pointer;
}
.calendar-container .week div {
  opacity: 0.5;
}

.calendar-container .display-selected {
  margin-bottom: 10px;
  padding: 20px 20px;
  text-align: center;
}

.calendar-container .event-past {
  background-color: #ccc;  /* 灰色 */
  cursor: pointer;
}
.calendar-container .event-future {
  background-color: #6297bb; /* 藍色 */
  cursor: pointer;
}
.calendar-container .event-past:hover,
.calendar-container .event-future:hover {
  opacity: 0.8;
  color: #fff;
}
.calendar-container .selected_date {
  background-color: orange;
  color: var(--white);
}

.calendar-container .today {
  background-color: red;
  color: var(--white);
}