/**
 * Architecture book — compact premium, uses manage CSS tokens.
 */

.rbbe-docs {
  --rbbe-docs-max: 65ch;
}

.rbbe-docs__toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.rbbe-docs__title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 650;
  color: var(--rbbe-ink, #1a2b36);
  letter-spacing: -0.02em;
}

.rbbe-docs__sub {
  margin: 0.25rem 0 0;
  color: var(--rbbe-muted, #6d7f8c);
  font-size: 0.8125rem;
}

.rbbe-docs__sub a {
  color: var(--rbbe-sea, #52a9b8);
  text-decoration: none;
}

.rbbe-docs__actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.rbbe-docs__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--rbbe-line, #e2e9ee);
  border-radius: var(--rbbe-radius-sm, 10px);
  background: var(--rbbe-surface, #fff);
  color: var(--rbbe-ink, #1a2b36);
  font-size: 0.8125rem;
  font-weight: 550;
  text-decoration: none;
  cursor: pointer;
  line-height: 1.2;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.rbbe-docs__btn:hover {
  border-color: var(--rbbe-sea, #52a9b8);
  color: var(--rbbe-sea-deep, #2c5f6b);
}

.rbbe-docs__btn--primary {
  background: var(--rbbe-sea, #52a9b8);
  border-color: var(--rbbe-sea, #52a9b8);
  color: #fff;
}

.rbbe-docs__btn--primary:hover {
  background: var(--rbbe-sea-hover, #4496a4);
  color: #fff;
}

.rbbe-docs__btn--danger {
  color: #b42318;
  border-color: #f3d0cd;
}

.rbbe-docs__audiences {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1rem;
  padding: 0.35rem;
  background: var(--rbbe-sand, #f4f7f9);
  border: 1px solid var(--rbbe-line, #e2e9ee);
  border-radius: var(--rbbe-radius-sm, 10px);
}

.rbbe-docs__audience {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.75rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--rbbe-ink, #1a2b36);
  font-size: 0.8125rem;
  font-weight: 550;
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.rbbe-docs__audience:hover {
  background: var(--rbbe-surface, #fff);
  border-color: var(--rbbe-line, #e2e9ee);
}

.rbbe-docs__audience.is-active {
  background: var(--rbbe-surface, #fff);
  border-color: var(--rbbe-sea, #52a9b8);
  color: var(--rbbe-sea-deep, #2c5f6b);
  box-shadow: 0 1px 2px rgba(26, 43, 54, 0.06);
}

.rbbe-docs__audience-count {
  display: inline-flex;
  min-width: 1.25rem;
  justify-content: center;
  padding: 0.05rem 0.35rem;
  border-radius: 999px;
  background: var(--rbbe-sea-soft, #e9f4f6);
  color: var(--rbbe-sea-deep, #2c5f6b);
  font-size: 0.6875rem;
  font-variant-numeric: tabular-nums;
}

.rbbe-docs__chapter-meta {
  margin: 0 0 0.5rem;
}

.rbbe-docs__pill {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--rbbe-sea-soft, #e9f4f6);
  color: var(--rbbe-sea-deep, #2c5f6b);
  font-size: 0.6875rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rbbe-docs__hint {
  margin: 0 0 0.85rem;
  font-size: 0.75rem;
  color: var(--rbbe-muted, #6d7f8c);
}

.rbbe-docs__empty {
  padding: 1.5rem;
  background: var(--rbbe-surface, #fff);
  border: 1px solid var(--rbbe-line, #e2e9ee);
  border-radius: var(--rbbe-radius-sm, 10px);
  color: var(--rbbe-muted, #6d7f8c);
}

.rbbe-docs__layout {
  display: grid;
  grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.rbbe-docs__toc {
  position: sticky;
  top: 0.75rem;
  padding: 0.75rem;
  background: var(--rbbe-surface, #fff);
  border: 1px solid var(--rbbe-line, #e2e9ee);
  border-radius: var(--rbbe-radius-sm, 10px);
  max-height: calc(100vh - 2rem);
  overflow: auto;
}

.rbbe-docs__toc-label {
  margin: 0 0 0.5rem;
  font-size: 0.6875rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--rbbe-muted, #6d7f8c);
}

.rbbe-docs__toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: toc;
}

.rbbe-docs__toc li {
  margin: 0;
  counter-increment: toc;
}

.rbbe-docs__toc a {
  display: block;
  padding: 0.4rem 0.5rem;
  border-radius: 8px;
  color: var(--rbbe-ink, #1a2b36);
  text-decoration: none;
  font-size: 0.8125rem;
  line-height: 1.35;
}

.rbbe-docs__toc a::before {
  content: counter(toc) ". ";
  color: var(--rbbe-muted, #6d7f8c);
  font-variant-numeric: tabular-nums;
}

.rbbe-docs__toc a:hover {
  background: var(--rbbe-sea-soft, #e9f4f6);
}

.rbbe-docs__toc a.is-active {
  background: var(--rbbe-sea-soft, #e9f4f6);
  color: var(--rbbe-sea-deep, #2c5f6b);
  font-weight: 600;
}

.rbbe-docs__chapter {
  padding: 1.25rem 1.5rem;
  background: var(--rbbe-surface, #fff);
  border: 1px solid var(--rbbe-line, #e2e9ee);
  border-radius: var(--rbbe-radius-sm, 10px);
  box-shadow: var(--rbbe-shadow, 0 12px 40px rgba(26, 43, 54, 0.06));
}

.rbbe-docs__chapter-title {
  margin: 0 0 1rem;
  font-size: 1.375rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--rbbe-ink, #1a2b36);
}

.rbbe-docs__body {
  max-width: var(--rbbe-docs-max);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--rbbe-ink, #1a2b36);
}

.rbbe-docs__body h2 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.05rem;
}

.rbbe-docs__body h3 {
  margin: 1.25rem 0 0.4rem;
  font-size: 0.95rem;
}

.rbbe-docs__body p {
  margin: 0 0 0.85rem;
}

.rbbe-docs__body ul {
  margin: 0 0 0.85rem;
  padding-left: 1.2rem;
}

.rbbe-docs__body code {
  font-size: 0.85em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: var(--rbbe-sand, #f4f7f9);
  border: 1px solid var(--rbbe-line, #e2e9ee);
}

.rbbe-docs__pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rbbe-line, #e2e9ee);
}

.rbbe-docs__pager-link {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  max-width: 45%;
  text-decoration: none;
  color: var(--rbbe-ink, #1a2b36);
  font-size: 0.8125rem;
}

.rbbe-docs__pager-link span {
  color: var(--rbbe-muted, #6d7f8c);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.rbbe-docs__pager-link--next {
  text-align: right;
  margin-left: auto;
}

.rbbe-docs-edit__row {
  display: grid;
  grid-template-columns: 1fr 1.6fr 1.2fr 0.7fr;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.rbbe-docs-edit label span,
.rbbe-docs-edit__preview > span {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--rbbe-muted, #6d7f8c);
}

.rbbe-docs-edit input,
.rbbe-docs-edit select,
.rbbe-docs-edit textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--rbbe-line, #e2e9ee);
  border-radius: 8px;
  font: inherit;
  background: #fff;
}

.rbbe-docs-edit__split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.rbbe-docs-edit__preview {
  padding: 0.75rem;
  background: var(--rbbe-surface, #fff);
  border: 1px solid var(--rbbe-line, #e2e9ee);
  border-radius: var(--rbbe-radius-sm, 10px);
  min-height: 280px;
  overflow: auto;
}

.rbbe-docs-edit__foot {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.85rem;
}

.rbbe-docs-edit__status {
  font-size: 0.8125rem;
  color: var(--rbbe-muted, #6d7f8c);
}

@media (max-width: 900px) {
  .rbbe-docs__layout,
  .rbbe-docs-edit__split,
  .rbbe-docs-edit__row {
    grid-template-columns: 1fr;
  }

  .rbbe-docs__toc {
    position: static;
    max-height: none;
  }
}