html, body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}

.cal-header {
  text-align: center;
  padding: 8px;
  background: #fffff0;
  font-weight: bold;
}

.week, .calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}

.week div {
  background: #ddd;
  text-align: center;
  font-size: 15px;
  padding: 4px 0;
}

.day {
  border: 1px solid #ccc;
  min-height: 80px;
  padding: 4px;
  background: #fff;
  font-size: 15px;
}

.today {
  background: #ffffb3;
}

.holiday {
  background: #ffecec;
  color: #c00;
}

.holiday-name {
  font-size: 12px;
}

.sun {
  background: #fff2f2;
}

.holiday.sun {
  background: #ffdcdc !important;
}

.sat {
  background: #f2f6ff;
}

.empty {
  border: 1px solid transparent;
}

/* 優先順位調整 */
.today {
  background: #ffffb3 !important;
}

.holiday {
  background: #ffecec !important;
  color: #c00;
}