/* ═══════════════════════════════════════════════════════════════
   MANUSCRIPT — Chapter sidebar, manuscript-specific UI,
   opaque blocks, conflict dialog, sync indicators
   ═══════════════════════════════════════════════════════════════ */

/* ── Chapter Sidebar ──────────────────────────────────── */
.manuscript-layout {
  display: flex;
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.chapter-sidebar {
  width: 220px;
  min-width: 180px;
  max-width: 300px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--cream);
  border-right: 1px solid var(--border);
  overflow: hidden;
}

.chapter-sidebar.ch-collapsed {
  width: 0;
  min-width: 0;
  border-right: none;
}

.ch-sidebar-header {
  flex-shrink: 0;
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.ch-sidebar-title {
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--text-muted);
  flex: 1;
}

.ch-folder-name {
  font-family: var(--sans);
  font-size: .7rem;
  color: var(--accent);
  padding: 6px 14px;
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ch-sidebar-actions {
  display: flex;
  gap: 4px;
}

.ch-action-btn {
  width: 24px;
  height: 24px;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  transition: background .12s, color .12s;
}

.ch-action-btn:hover {
  background: rgba(139, 69, 19, .06);
  color: var(--brown-dark);
}

/* ── Chapter List ──────────────────────────────────────── */
.ch-list {
  flex: 1;
  overflow-y: auto;
  list-style: none;
  margin: 0;
  padding: 6px 0;
}

.ch-item {
  padding: 8px 14px;
  cursor: pointer;
  font-family: var(--sans);
  font-size: .78rem;
  color: var(--brown-dark);
  border-left: 3px solid transparent;
  transition: background .12s, border-color .15s;
  user-select: none;
}

.ch-item:hover {
  background: rgba(139, 69, 19, .04);
}

.ch-item.ch-active {
  background: rgba(158, 122, 60, .08);
  border-left-color: var(--gold);
  font-weight: 600;
}

.ch-label {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ch-empty {
  padding: 20px 14px;
  text-align: center;
  color: var(--text-muted);
  font-size: .76rem;
  font-style: italic;
}

/* ── Drag & Drop Indicators ───────────────────────────── */
.ch-item.ch-dragging {
  opacity: .4;
}

.ch-item.ch-drop-above {
  border-top: 2px solid var(--gold);
}

.ch-item.ch-drop-below {
  border-bottom: 2px solid var(--gold);
}

/* ── Manuscript Editor Area ───────────────────────────── */
.manuscript-editor-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

/* ── Manuscript Toolbar Extension ─────────────────────── */
.ms-toolbar-section {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.ms-open-folder-btn,
.ms-new-chapter-btn,
.ms-close-folder-btn {
  padding: 3px 10px;
  border: 1.5px solid var(--border);
  border-radius: 5px;
  background: none;
  color: var(--brown-dark);
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  white-space: nowrap;
}

.ms-open-folder-btn:hover,
.ms-new-chapter-btn:hover {
  border-color: var(--gold);
  background: rgba(158, 122, 60, .05);
}

.ms-close-folder-btn {
  border-color: transparent;
  color: var(--text-muted);
  font-size: .68rem;
}

.ms-close-folder-btn:hover {
  color: var(--red);
}

.ms-save-indicator {
  font-family: var(--sans);
  font-size: .68rem;
  color: var(--text-muted);
  padding: 0 6px;
  transition: color .2s;
}

.ms-save-indicator.ms-saving {
  color: var(--gold);
}

.ms-save-indicator.ms-dirty {
  color: var(--accent);
}

/* ── Opaque Block (preserved Word elements) ───────────── */
.opaque-block {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  margin: 12px 0;
  background: #F5F0EB;
  border: 1px dashed var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font-family: var(--sans);
  font-size: .78rem;
  cursor: default;
  user-select: none;
}

.opaque-block-icon {
  font-size: 1.2rem;
  opacity: .6;
}

.opaque-block-label {
  font-style: italic;
}

/* ── Conflict Dialog ──────────────────────────────────── */
.ms-conflict-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .35);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ms-conflict-dialog {
  background: var(--white);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, .2);
  padding: 28px 32px;
  max-width: 420px;
  width: 90%;
  font-family: var(--sans);
}

.ms-conflict-title {
  font-size: .92rem;
  font-weight: 700;
  color: var(--brown-dark);
  margin-bottom: 10px;
}

.ms-conflict-body {
  font-size: .8rem;
  color: var(--text-body);
  line-height: 1.5;
  margin-bottom: 18px;
}

.ms-conflict-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.ms-conflict-btn {
  padding: 7px 16px;
  border-radius: 6px;
  font-family: var(--sans);
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid var(--border);
  transition: background .12s, border-color .15s;
}

.ms-conflict-btn-keep {
  background: none;
  color: var(--brown-dark);
}

.ms-conflict-btn-keep:hover {
  background: rgba(139, 69, 19, .05);
  border-color: var(--accent);
}

.ms-conflict-btn-reload {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--white);
}

.ms-conflict-btn-reload:hover {
  background: var(--accent);
  border-color: var(--accent);
}

/* ── Sidebar Toggle (for small viewports) ─────────────── */
.ch-toggle-btn {
  display: none;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--white);
  color: var(--text-muted);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
}

@media (max-width: 900px) {
  .chapter-sidebar {
    width: 180px;
    min-width: 140px;
  }
  .ch-toggle-btn {
    display: flex;
  }
}

@media (max-width: 640px) {
  .chapter-sidebar {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 100;
    box-shadow: 4px 0 12px rgba(0, 0, 0, .1);
  }
  .chapter-sidebar.ch-collapsed {
    display: none;
  }
}