/* ════════════════════════════════════════════
   게시판 페이지
   ════════════════════════════════════════════ */

.board-page {
  min-height: calc(100vh - 90px);
  padding: 80px 0 120px;
  background: var(--color-bg-white);
}

/* 페이지 헤더 */
.board-sc-header {
  text-align: center;
  margin-bottom: 48px;
}

.board-sc-header .sc-label {
  margin-bottom: 8px;
}

/* ── 게시판 테이블 ── */
.board-table {
  border-top: 2px solid var(--color-text);
}

/* 컬럼 헤더 행 */
.board-head {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.board-head .col-num {
  width: 100px;
  flex-shrink: 0;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text-sub);
  text-align: center;
}

.board-head .col-title {
  flex: 1;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text-sub);
  padding-left: 8px;
}

/* ── 게시글 아이템 ── */
.board-item {
  border-bottom: 1px solid var(--color-border);
}

/* 클릭 가능한 행 */
.board-row {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 20px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}

.board-row:hover {
  background: var(--color-bg);
}

.board-item.is-open .board-row {
  background: var(--color-bg);
}

/* 순번 */
.board-row .col-num {
  width: 100px;
  flex-shrink: 0;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  text-align: center;
  font-weight: 500;
}

/* 제목 */
.board-row .col-title {
  flex: 1;
  font-size: var(--fs-sm);
  color: var(--color-text);
  font-weight: 500;
  padding-left: 8px;
  transition: color 0.2s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-right: 16px;
}

.board-item.is-open .board-row .col-title {
  color: var(--color-primary);
  font-weight: 600;
  white-space: normal;
}

/* 토글 아이콘 */
.col-toggle {
  flex-shrink: 0;
  width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chevron {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: transform 0.3s ease, color 0.2s;
}

.board-item.is-open .chevron {
  transform: rotate(180deg);
  color: var(--color-primary);
}

/* ── 슬라이드 다운 콘텐츠 ── */
.board-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

.board-item.is-open .board-content {
  max-height: 600px;
}

.board-content-inner {
  padding: 28px 100px 36px;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.board-content-inner p {
  font-size: var(--fs-sm);
  color: var(--color-text-sub);
  line-height: 1.85;
}

/* ════════════════════════════════════════════
   반응형
   ════════════════════════════════════════════ */
@media (max-width: 1279px) {
  .board-content-inner {
    padding: 24px 32px 32px;
  }
}

@media (max-width: 767px) {
  .board-page {
    padding: 48px 0 80px;
  }

  .board-sc-header {
    margin-bottom: 32px;
  }

  .board-head .col-num,
  .board-row .col-num {
    width: 52px;
    font-size: 12px;
  }

  .board-row {
    padding: 16px 0;
  }

  .board-row .col-title {
    font-size: 13px;
  }

  .board-content-inner {
    padding: 20px 16px 28px;
  }
}