.teacher-board-tabs-wrap {
  background: transparent;
  padding-top: 18px;
  padding-bottom: 6px;
}

.teacher-board-tabs {
  width: fit-content;
  max-width: 92%;
  margin: 0 auto 22px auto;
  padding: 12px;
  display: flex;
  gap: 12px;
  row-gap: 10px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 16px 40px rgba(2, 6, 23, 0.12);
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 2;
}

.teacher-board-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  min-width: 160px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 1.02rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: #334155;
  background: #f1f5f9;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.06);
  transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.teacher-board-tab:hover,
.teacher-board-tab:focus-visible {
  transform: translateY(-1px);
  background: #e2e8f0;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.1);
}

.teacher-board-tab:focus-visible {
  outline: 3px solid rgba(59, 130, 246, 0.45);
  outline-offset: 2px;
}

.teacher-board-tab.is-active {
  color: #ffffff;
  background: linear-gradient(135deg, #f25555 0%, #ff4b7a 55%, #ff7b36 100%);
  box-shadow: 0 14px 26px rgba(242, 85, 85, 0.28);
}

.teacher-board-tab.is-active:hover,
.teacher-board-tab.is-active:focus-visible {
  transform: translateY(-1px);
}

/* Images: make screenshots responsive + "adjustable" via click-to-zoom */
body.teacher-board--announcement .detail__content img,
body.teacher-board--policy .detail__content img,
body.teacher-board--guidance .detail__content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 18px auto;
  border-radius: 14px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  box-shadow: 0 12px 22px rgba(0, 0, 0, 0.08);
  cursor: zoom-in;
}

/* Editor preview image click-to-zoom */
.toastui-editor-contents img,
.ProseMirror img {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  cursor: zoom-in;
}

/* Post content typography (match /qna/:id) */
body.teacher-board--announcement .detail__content,
body.teacher-board--policy .detail__content,
body.teacher-board--guidance .detail__content {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: #1f2937;
  margin: 0 0 28px 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

body.teacher-board--announcement .detail__content > :first-child,
body.teacher-board--policy .detail__content > :first-child,
body.teacher-board--guidance .detail__content > :first-child {
  margin-top: 0;
}

body.teacher-board--announcement .detail__content > :last-child,
body.teacher-board--policy .detail__content > :last-child,
body.teacher-board--guidance .detail__content > :last-child {
  margin-bottom: 0;
}

body.teacher-board--announcement .detail__content h1,
body.teacher-board--announcement .detail__content h2,
body.teacher-board--announcement .detail__content h3,
body.teacher-board--announcement .detail__content h4,
body.teacher-board--announcement .detail__content h5,
body.teacher-board--announcement .detail__content h6,
body.teacher-board--policy .detail__content h1,
body.teacher-board--policy .detail__content h2,
body.teacher-board--policy .detail__content h3,
body.teacher-board--policy .detail__content h4,
body.teacher-board--policy .detail__content h5,
body.teacher-board--policy .detail__content h6,
body.teacher-board--guidance .detail__content h1,
body.teacher-board--guidance .detail__content h2,
body.teacher-board--guidance .detail__content h3,
body.teacher-board--guidance .detail__content h4,
body.teacher-board--guidance .detail__content h5,
body.teacher-board--guidance .detail__content h6 {
  margin: 1.25em 0 0.6em 0;
  color: #111827;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

body.teacher-board--announcement .detail__content p,
body.teacher-board--policy .detail__content p,
body.teacher-board--guidance .detail__content p {
  margin: 0;
}

body.teacher-board--announcement .detail__content p + p,
body.teacher-board--policy .detail__content p + p,
body.teacher-board--guidance .detail__content p + p {
  margin-top: 0.4em;
}

body.teacher-board--announcement .detail__content ul,
body.teacher-board--announcement .detail__content ol,
body.teacher-board--policy .detail__content ul,
body.teacher-board--policy .detail__content ol,
body.teacher-board--guidance .detail__content ul,
body.teacher-board--guidance .detail__content ol {
  margin: 0.6em 0;
  padding-left: 1.3em;
}

body.teacher-board--announcement .detail__content li,
body.teacher-board--policy .detail__content li,
body.teacher-board--guidance .detail__content li {
  margin: 0.35em 0;
}

body.teacher-board--announcement .detail__content hr,
body.teacher-board--policy .detail__content hr,
body.teacher-board--guidance .detail__content hr {
  border: 0;
  border-top: 1px solid rgba(17, 24, 39, 0.12);
  margin: 1.4em 0;
}

body.teacher-board--announcement .detail__content blockquote,
body.teacher-board--policy .detail__content blockquote,
body.teacher-board--guidance .detail__content blockquote {
  margin: 1.1em 0;
  padding: 10px 1em;
  border-left: 4px solid #f25555;
  background: rgba(242, 85, 85, 0.08);
  border-radius: 12px;
  color: #374151;
  font-weight: 800;
}

body.teacher-board--announcement .detail__content code,
body.teacher-board--policy .detail__content code,
body.teacher-board--guidance .detail__content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono',
    'Courier New', monospace;
  font-size: 0.95em;
  background: rgba(17, 24, 39, 0.06);
  padding: 0.15em 0.35em;
  border-radius: 6px;
}

body.teacher-board--announcement .detail__content pre,
body.teacher-board--policy .detail__content pre,
body.teacher-board--guidance .detail__content pre {
  background: #0b1020;
  color: #e5e7eb;
  padding: 14px 16px;
  border-radius: 12px;
  overflow: auto;
  margin: 1.15em 0;
}

body.teacher-board--announcement .detail__content pre code,
body.teacher-board--policy .detail__content pre code,
body.teacher-board--guidance .detail__content pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

body.teacher-board--announcement .detail__content table,
body.teacher-board--policy .detail__content table,
body.teacher-board--guidance .detail__content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.15em 0;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid rgba(17, 24, 39, 0.08);
}

body.teacher-board--announcement .detail__content th,
body.teacher-board--announcement .detail__content td,
body.teacher-board--policy .detail__content th,
body.teacher-board--policy .detail__content td,
body.teacher-board--guidance .detail__content th,
body.teacher-board--guidance .detail__content td {
  border: 1px solid rgba(17, 24, 39, 0.08);
  padding: 10px 12px;
  vertical-align: top;
}

body.teacher-board--announcement .detail__content thead th,
body.teacher-board--policy .detail__content thead th,
body.teacher-board--guidance .detail__content thead th {
  background: rgba(17, 24, 39, 0.04);
  font-weight: 700;
}

/* Links (match /qna/:id) */
body.teacher-board--announcement .detail__content a,
body.teacher-board--policy .detail__content a,
body.teacher-board--guidance .detail__content a {
  color: #0b5fff;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 0.08em;
  overflow-wrap: anywhere;
}

body.teacher-board--announcement .detail__content a:hover,
body.teacher-board--policy .detail__content a:hover,
body.teacher-board--guidance .detail__content a:hover {
  color: #0847c9;
}

.teacher-image-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.82);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  z-index: 9999;
}

.teacher-image-lightbox.is-open {
  display: flex;
}

.teacher-image-lightbox__panel {
  width: min(1100px, 96vw);
  max-height: 92vh;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: 0 40px 90px rgba(2, 6, 23, 0.45);
  overflow: hidden;
}

.teacher-image-lightbox__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  background: rgba(241, 245, 249, 0.95);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.teacher-image-lightbox__controls {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.teacher-image-lightbox__btn {
  appearance: none;
  border: 1px solid rgba(15, 23, 42, 0.14);
  background: #ffffff;
  border-radius: 12px;
  padding: 8px 10px;
  font-weight: 800;
  cursor: pointer;
}

.teacher-image-lightbox__btn:hover,
.teacher-image-lightbox__btn:focus-visible {
  background: #f1f5f9;
}

.teacher-image-lightbox__range {
  width: 200px;
}

.teacher-image-lightbox__meta {
  font-size: 0.9rem;
  color: #334155;
  font-weight: 700;
}

.teacher-image-lightbox__body {
  padding: 14px;
  max-height: calc(92vh - 56px);
  overflow: auto;
  background: rgba(255, 255, 255, 0.98);
}

.teacher-image-lightbox__img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  transform-origin: center center;
}

@media (max-width: 768px) {
  .teacher-board-tabs {
    width: 92%;
    margin: 0 auto 16px auto;
    padding: 10px;
  }

  .teacher-board-tab {
    flex: 1;
    padding: 11px 12px;
    font-size: 0.96rem;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .teacher-image-lightbox__range {
    width: 140px;
  }

  /* List tables: prevent horizontal overflow on mobile */
  body.teacher-board--policy-list .sectionQna-container,
  body.teacher-board--announcement-list .sectionQna-container {
    padding-left: 16px;
    padding-right: 16px;
    box-sizing: border-box;
  }

  body.teacher-board--policy-list .sectionQna,
  body.teacher-board--announcement-list .sectionQna {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box;
    margin: 12px auto !important;
    padding-left: 14px;
    padding-right: 14px;
  }

  body.teacher-board--policy-list .sectionQna__table,
  body.teacher-board--announcement-list .sectionQna__table {
    width: 100%;
    table-layout: fixed;
  }

  body.teacher-board--policy-list .sectionQna__table th,
  body.teacher-board--policy-list .sectionQna__table td,
  body.teacher-board--announcement-list .sectionQna__table th,
  body.teacher-board--announcement-list .sectionQna__table td {
    word-break: break-word;
    overflow-wrap: anywhere;
  }

  body.teacher-board--policy-list .sectionQna__table td:nth-child(2) a,
  body.teacher-board--announcement-list .sectionQna__table td:nth-child(2) a {
    display: inline-block;
    max-width: 100%;
    word-break: break-word;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 420px) {
  .teacher-board-tabs {
    width: 96%;
    gap: 8px;
    padding: 10px;
  }

  .teacher-board-tab {
    padding: 10px 10px;
    font-size: 0.7rem;
  }
}

/* Remove board headers (Policies / Announcements) */
body.teacher-board--policy .section0,
body.teacher-board--announcement .section0,
body.teacher-board--guidance .section0 {
  display: none !important;
}

/* Policy list page: unify background (remove white band + footer mismatch) */
body.teacher-board--policy-list {
  background: #f1f5f9;
}

body.teacher-board--policy-list .sectionQna-container {
  background: transparent;
  padding-bottom: 34px;
}

body.teacher-board--policy-list .sectionQna {
  background: rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  padding: 18px 18px 10px 18px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 18px 45px rgba(2, 6, 23, 0.08);
}

body.teacher-board--policy-list .section3,
body.teacher-board--policy-list .footer-container,
body.teacher-board--policy-list .footer {
  background: #f1f5f9;
}

/* Policy pages: unify background (write/edit/detail too) */
body.teacher-board--policy {
  background: #f1f5f9;
}

/* Announcement pages: match Policy styling */
body.teacher-board--announcement {
  background: #f1f5f9;
}

body.teacher-board--guidance {
  background: #f1f5f9;
}

/* Announcement list page: unify background (remove white band + footer mismatch) */
body.teacher-board--announcement-list .sectionQna-container {
  background: transparent;
  padding-bottom: 34px;
}

body.teacher-board--announcement-list .sectionQna {
  background: rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  padding: 18px 18px 10px 18px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 18px 45px rgba(2, 6, 23, 0.08);
}

body.teacher-board--announcement-list .section3,
body.teacher-board--announcement-list .footer-container,
body.teacher-board--announcement-list .footer {
  background: #f1f5f9;
}

/* List tables: mobile-friendly spacing + prevent clipping */
@media (max-width: 420px) {
  body.teacher-board--policy-list .sectionQna-container,
  body.teacher-board--announcement-list .sectionQna-container {
    padding: 0 12px;
  }

  body.teacher-board--policy-list .sectionQna,
  body.teacher-board--announcement-list .sectionQna {
    width: 100% !important;
    margin: 12px auto !important;
    padding: 14px 12px 10px 12px;
  }

  body.teacher-board--policy-list .button-container,
  body.teacher-board--announcement-list .button-container {
    padding: 6px 0 12px 0 !important;
  }

  body.teacher-board--policy-list .sectionQna__table,
  body.teacher-board--announcement-list .sectionQna__table {
    table-layout: fixed;
    width: 100%;
  }

  body.teacher-board--policy-list .sectionQna__table th,
  body.teacher-board--policy-list .sectionQna__table td,
  body.teacher-board--announcement-list .sectionQna__table th,
  body.teacher-board--announcement-list .sectionQna__table td {
    padding: 8px 10px !important;
    font-size: 0.92rem;
  }

  body.teacher-board--policy-list .sectionQna__table th:first-child,
  body.teacher-board--policy-list .sectionQna__table td:first-child,
  body.teacher-board--announcement-list .sectionQna__table th:first-child,
  body.teacher-board--announcement-list .sectionQna__table td:first-child {
    width: 44px !important;
  }

  body.teacher-board--policy-list .sectionQna__table td:nth-child(2),
  body.teacher-board--announcement-list .sectionQna__table td:nth-child(2) {
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  body.teacher-board--policy-list .sectionQna__table td:nth-child(2) a,
  body.teacher-board--announcement-list .sectionQna__table td:nth-child(2) a {
    display: inline-block;
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  body.teacher-board--guidance-list .board-card {
    margin: 12px auto 48px auto;
    padding: 14px 12px 10px 12px;
  }

  body.teacher-board--guidance-list .board-table {
    table-layout: fixed;
    width: 100%;
  }

  body.teacher-board--guidance-list .board-table th,
  body.teacher-board--guidance-list .board-table td {
    padding: 8px 10px;
    font-size: 0.92rem;
  }

  body.teacher-board--guidance-list .board-table td:first-child,
  body.teacher-board--guidance-list .board-table th:first-child {
    width: 44px;
  }

  body.teacher-board--guidance-list .board-table td:nth-child(2) {
    overflow-wrap: anywhere;
    word-break: break-word;
  }
}