body {
    background-color: #ffffff; /* 전체 배경 흰색 */
    font-family: 'Segoe UI', sans-serif;
  }

  .calendar-container {
    max-width: 800px;
    margin: 30px auto;
    padding: 20px;
    background: #f7f7f7; /* 밝은 그레이 */
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    color: #333;
  }

  .calendar-header {
    display: flex;
    justify-content: space-between;
    font-size: 22px;
    font-weight: bold;
    color: #444;
    margin-bottom: 15px;
  }

  .calendar-weekdays, .calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
  }

  .calendar-weekdays div {
    font-weight: bold;
    color: #666;
    padding: 8px 0;
  }

  .calendar-days .day, .calendar-days .empty {
    padding: 14px;
    margin: 3px;
    border-radius: 6px;
    background: #eaeaea; /* 중간 그레이 */
    cursor: pointer;
    color: #333;
    transition: background 0.2s;
  }

  .calendar-days .day:hover {
    background: #dcdcdc;
  }

  .calendar-days .notice-day {
    background: linear-gradient(145deg, #555, #333);
    color: #fff;
    font-weight: bold;
    border: 1px solid #777;
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.4);
  }

  .notice-list {
    max-width: 800px;
    margin: 30px auto;
    background: #f7f7f7; /* 공지 카드 배경 */
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    color: #444;
  }

  .notice-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #ddd;
  }

  .notice-date {
    color: #555;
    font-weight: bold;
  }

  .notice-text {
    color: #222;
  }