/* =========================================================
   Seminar calendar (notice.html 세미나 탭) + 세미나 일시 표시
   - 브랜드 색: var(--brand) = #26549c (styles.css)
   - 세미나 보라(#6f42c1)는 세미나 태그(.notice-item__tag--seminar)에만, 달력 강조는 brand
========================================================= */

/* ---------- 레이아웃 ---------- */
.seminar-cal {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 1.5rem;
  margin-bottom: 2rem;
  padding: 1.25rem;
  border: 1px solid #e9e9e9;
  background: #fff;
  min-width: 0;
}

.seminar-cal__main {
  min-width: 0;
}

/* ---------- 헤더 ---------- */
.seminar-cal__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.seminar-cal__title {
  margin: 0;
  min-width: 7.5em;
  font-size: 1.25rem;
  font-weight: 700;
  color: #2b2b2b;
}

.seminar-cal__nav {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.seminar-cal__nav-btn,
.seminar-cal__today-btn {
  display: inline-grid;
  place-items: center;
  height: 2.25rem;
  border: 1px solid #e0e0e0;
  background: #fff;
  color: #666;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.seminar-cal__nav-btn {
  width: 2.25rem;
  padding: 0;
}

.seminar-cal__today-btn {
  padding: 0 0.875rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.seminar-cal__nav-btn:hover,
.seminar-cal__today-btn:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.seminar-cal__add {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  height: 2.25rem;
  padding: 0 1rem;
  border: none;
  background: var(--brand);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
}

.seminar-cal__add:hover {
  background: #1d4380;
}

/* ---------- 요일 + 날짜 그리드 ---------- */
.seminar-cal__weekdays,
.seminar-cal__grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.seminar-cal__weekdays {
  border-bottom: 2px solid var(--text);
}

.seminar-cal__weekdays span {
  padding: 0.5rem 0;
  font-size: 0.8125rem;
  font-weight: 700;
  text-align: center;
  color: #666;
}

.seminar-cal__weekdays .is-sun,
.seminar-cal__cell.is-sun .seminar-cal__num {
  color: #d64545;
}

.seminar-cal__weekdays .is-sat,
.seminar-cal__cell.is-sat .seminar-cal__num {
  color: #2f6fd6;
}

/* 공휴일: 일요일과 같은 빨강 (토요일보다 우선, 오늘 표시보다는 뒤) */
.seminar-cal__cell.is-holiday .seminar-cal__num {
  color: #d64545;
}

.seminar-cal__holiday {
  flex: 0 1 auto;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.75rem; /* 날짜 숫자 원(1.75rem)과 같은 줄 높이 → 세로 정렬 */
  color: #d64545;
}

.seminar-cal__daypanel-holiday {
  margin-left: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #d64545;
}

.seminar-cal__grid {
  gap: 1px;
  background: #e9e9e9;
  border-bottom: 1px solid #e9e9e9;
}

.seminar-cal__cell {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 6.25rem;
  background: #fff;
}

.seminar-cal__cell.is-outside {
  background: #fafafa;
}

.seminar-cal__cell.is-selected {
  background: #f5f5f5; /* 불투명: 그리드 배경(#e9e9e9)이 비치지 않게 */
  box-shadow: inset 0 0 0 2px var(--brand);
}

.seminar-cal__date {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  width: 100%;
  padding: 0.375rem 0.5rem;
  border: 0;
  background: transparent;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: default;
}

/* 빈 날: 셀 전체가 버튼 (로그인 시 일정 추가) */
.seminar-cal__cell:not(.has-events) .seminar-cal__date {
  flex: 1;
  align-items: flex-start;
}

.seminar-cal__cell.has-events .seminar-cal__date,
body.seminar-can-add .seminar-cal__cell .seminar-cal__date {
  cursor: pointer;
}

.seminar-cal__date:hover .seminar-cal__num {
  background: #f0f0f0;
}

.seminar-cal__num {
  display: inline-grid;
  place-items: center;
  min-width: 1.75rem;
  height: 1.75rem;
  padding: 0 0.25rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #2b2b2b;
}

.seminar-cal__cell.is-today .seminar-cal__num,
.seminar-cal__cell.is-today .seminar-cal__date:hover .seminar-cal__num {
  background: var(--brand);
  color: #fff;
}

.seminar-cal__dots {
  display: none;
  gap: 3px;
}

.seminar-cal__dots i {
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

.seminar-cal__chips {
  list-style: none;
  margin: 0;
  padding: 0 0.375rem 0.375rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.seminar-cal__chip {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
  min-width: 0;
  padding: 0.125rem 0.25rem;
  color: var(--brand);
  font-size: 0.75rem;
  line-height: 1.35;
  text-decoration: none;
}

.seminar-cal__chip:hover .seminar-cal__chip-title {
  color: var(--brand);
}

.seminar-cal__chip-time {
  flex: 0 0 auto;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.seminar-cal__chip-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: #2b2b2b;
}

/* 선택한 날짜 패널: 모바일 전용 (데스크톱은 칩이 보이므로 숨김) */
.seminar-cal__daypanel {
  margin-top: 0.75rem;
  padding: 0.75rem 0 0;
  border-top: 1px solid #f0f0f0;
}

.seminar-cal__daypanel-title {
  margin: 0 0 0.375rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: #2b2b2b;
}

.seminar-cal__daypanel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.seminar-cal__daypanel-list a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.5rem;
  color: var(--brand);
  font-size: 0.875rem;
  text-decoration: none;
}

.seminar-cal__daypanel-name {
  color: #2b2b2b;
  font-weight: 600;
  min-width: 0;
  word-break: break-word;
}

.seminar-cal__daypanel-loc {
  color: #888;
  font-size: 0.8125rem;
}

@media (min-width: 601px) {
  .seminar-cal__daypanel {
    display: none;
  }
}

/* ---------- 다가오는 세미나 ---------- */
.seminar-cal__side {
  min-width: 0;
  padding-left: 1.5rem;
  border-left: 1px solid #e9e9e9;
}

.seminar-cal__side-title {
  margin: 0.375rem 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: #2b2b2b;
}

.seminar-upcoming {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--text);
}

.seminar-upcoming > li {
  border-bottom: 1px solid #f0f0f0;
}

.seminar-upcoming__empty {
  padding: 0.75rem 0;
  font-size: 0.875rem;
  color: #888;
}

.seminar-upcoming__link {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.75rem 0;
  color: inherit;
  text-decoration: none;
}

.seminar-upcoming__link:hover {
  background: #fafafa;
}

.seminar-upcoming__date {
  flex: 0 0 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.125rem 0;
  color: var(--text);
  border-right: 1px solid #e9e9e9;
  line-height: 1.1;
}

.seminar-upcoming__month {
  font-size: 0.75rem;
  font-weight: 600;
  color: #888;
}

.seminar-upcoming__day {
  font-size: 1.25rem;
  font-weight: 700;
}

.seminar-upcoming__body {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.seminar-upcoming__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #2b2b2b;
  line-height: 1.35;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
}

.seminar-upcoming__link:hover .seminar-upcoming__title {
  color: var(--brand);
}

.seminar-upcoming__meta {
  font-size: 0.8125rem;
  color: #888;
  word-break: break-word;
}

/* ---------- 날짜 필터 바 ---------- */
.seminar-filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 1rem;
  padding: 0.25rem 0;
  font-size: 0.875rem;
  color: #666;
}

.seminar-filter__clear {
  height: 2rem;
  padding: 0 0.75rem;
  border: 1px solid #2b2b2b;
  background: #fff;
  color: #2b2b2b;
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
}

.seminar-filter__clear:hover {
  border-color: var(--brand);
  color: var(--brand);
}

/* ---------- 세미나 일시 라인 (목록/상세) ----------
   작성자/날짜/조회 메타와 같은 평범한 텍스트 한 줄: "일시 2026.10.15 (목) 14:00   장소 공학관 1201호" */
.seminar-event {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 1rem;
  margin: 0;
  font-size: 0.875rem;
  color: #888;
  min-width: 0;
}

.seminar-event__item {
  display: inline-flex;
  align-items: baseline;
  gap: 0.375rem;
  min-width: 0;
}

.seminar-event__label {
  flex: 0 0 auto;
  color: #999;
}

.seminar-event time {
  font-weight: 600;
  color: #666;
  font-variant-numeric: tabular-nums;
}

.seminar-event__loc {
  word-break: break-word;
}

/* 목록 아이템: 제목/미리보기와 같은 열(2), 3행 */
.notice-item__event {
  grid-column: 2;
  grid-row: 3;
  margin-top: 0.25rem;
  font-size: 0.8125rem;
}

@media (max-width: 768px) {
  .notice-item__event {
    grid-column: 1 / -1;
    grid-row: 4;
  }
}

/* 상세 페이지: 메타 줄 바로 아래 */
.notice-detail__event {
  margin-top: 0.5rem;
}

/* ---------- 작성/수정 모달: 세미나 일시·장소 ---------- */
.seminar-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.125rem;
}

.seminar-fields .form-field__input {
  width: 100%;
  min-width: 0;
}

.seminar-fields__req {
  color: #d64545;
}

.seminar-fields__opt {
  font-weight: 400;
  color: #888;
}

/* ---------- 반응형 ---------- */
@media (max-width: 960px) {
  .seminar-cal {
    grid-template-columns: minmax(0, 1fr);
  }

  .seminar-cal__side {
    padding-left: 0;
    padding-top: 1.25rem;
    border-left: 0;
    border-top: 1px solid #e9e9e9;
  }
}

@media (max-width: 600px) {
  /* 좌우 여백을 줄여 날짜 칸 폭 확보 (360px 에서 칸 44px 이상) */
  .seminar-cal {
    padding: 0.875rem 0.375rem;
    gap: 1rem;
  }

  /* 제목은 한 줄 전체, 버튼은 다음 줄 → 언어와 상관없이 머리글 높이 일정 */
  .seminar-cal__title {
    flex: 1 0 100%;
    min-width: 0;
    font-size: 1.0625rem;
  }

  .seminar-cal__add {
    height: 2.25rem;
    padding: 0 0.75rem;
  }

  .seminar-cal__cell {
    min-height: 3.25rem;
  }

  .seminar-cal__date,
  .seminar-cal__cell:not(.has-events) .seminar-cal__date {
    flex: 1;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 0.25rem;
    padding: 0.375rem 0.125rem;
    text-align: center;
  }

  .seminar-cal__num {
    min-width: 1.625rem;
    height: 1.625rem;
    font-size: 0.8125rem;
  }

  .seminar-cal__dots {
    display: inline-flex;
  }

  .seminar-cal__holiday {
    font-size: 0.75rem;
    font-weight: 400;
    line-height: 1.2;
  }

  .seminar-cal__chips {
    display: none;
  }

  .seminar-fields {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- 터치 기기: 44px 터치 영역 ---------- */
@media (pointer: coarse) {
  .seminar-cal__nav-btn {
    width: 2.75rem;
    height: 2.75rem;
  }

  .seminar-cal__today-btn,
  .seminar-cal__add,
  .seminar-filter__clear {
    height: auto;
    min-height: 2.75rem;
  }

  /* 태블릿(칩 표시): 칩 줄 높이 확대 */
  .seminar-cal__chip {
    align-items: center;
    min-height: 2rem;
  }

  .seminar-cal__daypanel-list a {
    min-height: 2.75rem;
    align-items: center;
  }
}