.custom-book-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.7rem 1rem;
  margin: 0 0 1.75rem;
  border: 1px solid rgba(42, 101, 133, 0.18);
  border-radius: 10px;
  background: rgba(42, 101, 133, 0.07);
  font-size: 0.86rem;
}

.custom-book-header-left {
  font-weight: 700;
  letter-spacing: 0.01em;
}

.custom-book-header-right {
  font-size: 0.82rem;
  color: var(--bs-secondary-color);
  text-align: right;
}

.public-scope {
  margin: 2rem 0;
  padding: 1.25rem 1.4rem;
  border-left: 5px solid #2a6585;
  border-radius: 0 10px 10px 0;
  background: rgba(42, 101, 133, 0.08);
}

.public-scope h3 {
  margin-top: 0;
  color: #245a77;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.25rem 0 2rem;
}

.guide-card {
  padding: 1.25rem;
  border: 1px solid var(--bs-border-color);
  border-radius: 12px;
  background: var(--bs-body-bg);
  box-shadow: 0 4px 16px rgba(25, 47, 60, 0.06);
}

.guide-card h3 {
  margin-top: 0;
  font-size: 1.05rem;
}

.guide-card p:last-child {
  margin-bottom: 0;
}

.chapter-meta {
  margin-bottom: 1.5rem;
  color: var(--bs-secondary-color);
  font-size: 0.94rem;
}

table {
  font-size: 0.92rem;
}

.publication-table {
  max-width: 100%;
  overflow-x: auto;
}

.publication-table table {
  width: 100%;
  table-layout: fixed;
}

.publication-table th:nth-child(1),
.publication-table td:nth-child(1) {
  width: 19%;
}

.publication-table th:nth-child(2),
.publication-table td:nth-child(2) {
  width: 49%;
}

.publication-table th:nth-child(3),
.publication-table td:nth-child(3) {
  width: 32%;
}

.publication-table th,
.publication-table td {
  overflow-wrap: anywhere;
  vertical-align: top;
}

.table-responsive,
.cell-output-display {
  max-width: 100%;
  overflow-x: auto;
}

@media (max-width: 900px) {
  .guide-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .publication-table table {
    min-width: 760px;
  }

  .custom-book-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.2rem;
  }

  .custom-book-header-right {
    text-align: left;
  }
}