/* Scoped styles for the outline composer. */
.outline-composer { margin-top: 6px; padding: 24px; border: 1px solid #e2e8f0; border-radius: 16px; background: #fff; color: #1e293b; font-size: 14px; }
.outline-composer [hidden] { display: none !important; }
.outline-composer button, .outline-composer select, .outline-composer textarea { font: inherit; }
.outline-composer button { cursor: pointer; }
.outline-composer button:disabled { cursor: wait; opacity: .6; }
.outline-composer :is(button, summary, [role="button"], select):focus-visible { outline: 2px solid #2563eb; outline-offset: 3px; }
.outline-card-header { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
.outline-card-header h3 { margin: 0; font-size: 16px; font-weight: 650; line-height: 1.5; }
.outline-optional { margin-left: 6px; color: #94a3b8; font-size: 11px; font-weight: 400; }
.outline-language-badge { padding: 5px 9px; background: #f1f5f9; border-radius: 6px; color: #475569; font-size: 11px; white-space: nowrap; }
.outline-tabs { display: inline-flex; gap: 4px; margin-bottom: 14px; padding: 4px; border-radius: 9px; background: #f1f5f9; }
.outline-tabs button { padding: 8px 16px; border: 0; border-radius: 6px; color: #64748b; background: transparent; font-size: 12px; font-weight: 550; transition: background .15s, color .15s; }
.outline-tabs button.is-active { color: #1e293b; background: #fff; box-shadow: 0 1px 3px #0f172a12; }
.outline-composer .outline-textarea { display: block; width: 100%; min-height: 176px; box-sizing: border-box; padding: 14px 16px; border: 1px solid #e2e8f0; border-radius: 10px; background: #f8fafc; color: #334155; font-size: 13px; line-height: 1.8; resize: vertical; outline: none; transition: border-color .15s, box-shadow .15s; }
.outline-composer .outline-textarea::placeholder { color: #94a3b8; }
.outline-composer .outline-textarea:focus { background: #fff; border-color: #94a3b8; box-shadow: 0 0 0 3px #f1f5f9; }
.outline-input-hint { margin: 9px 0 0; color: #94a3b8; font-size: 11px; }
.outline-composer .outline-dropzone { display: flex; width: 100%; min-height: 176px; box-sizing: border-box; align-items: center; justify-content: center; flex-direction: column; gap: 10px; padding: 22px 16px; border: 1px dashed #cbd5e1; border-radius: 10px; background: #f8fafc; text-align: center; transition: border-color .15s, background .15s; }
.outline-dropzone:hover, .outline-dropzone.is-dragover { border-color: #64748b; background: #f1f5f9; }
.outline-dropzone .outline-upload-icon { font-size: 28px; color: #64748b; }
.outline-dropzone strong { font-size: 13px; font-weight: 550; }
.outline-dropzone > span:last-child { color: #94a3b8; font-size: 11px; }
.outline-file-list { list-style: none; margin: 10px 0 0; padding: 0; }
.outline-file-list li { display: flex; align-items: center; gap: 8px; padding: 9px 0; border-bottom: 1px solid #f1f5f9; }
.outline-file-name { min-width: 0; flex: 1; overflow-wrap: anywhere; font-size: 12px; }
.outline-file-size { font-size: 11px; color: #94a3b8; white-space: nowrap; }
.outline-upload-meta { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-top: 12px; }
.outline-format-help { flex: 1; min-width: 110px; }
.outline-composer summary { cursor: pointer; color: #64748b; font-size: 12px; }
.outline-format-help p { margin: 8px 0 0; color: #64748b; font-size: 11px; line-height: 1.8; max-width: 380px; }
.outline-source-language { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; color: #64748b; font-size: 11px; }
.outline-source-language select { max-width: 156px; padding: 5px 24px 5px 8px; border: 1px solid #e2e8f0; border-radius: 6px; background: #fff; color: #475569; font-size: 12px; }
.outline-composer .outline-text-button { flex-shrink: 0; white-space: nowrap; padding: 6px 2px; border: 0; background: none; color: #64748b; font-size: 12px; font-weight: 500; }
.outline-composer .outline-text-button:hover { color: #0f172a; }
.outline-import-error, .outline-warning { margin-top: 12px; padding: 12px 14px; border-radius: 8px; font-size: 12px; line-height: 1.7; white-space: pre-line; }
.outline-import-error { background: #fef2f2; color: #b91c1c; }
.outline-warning { background: #fffbeb; color: #92400e; }
.outline-preview-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.outline-preview-header h4 { margin: 0; font-size: 14px; font-weight: 600; }
.outline-preview-header p { margin: 6px 0 0; color: #64748b; font-size: 11px; line-height: 1.6; }
.outline-extracted-source { margin: 12px 0; }
.outline-extracted-source .outline-textarea { margin-top: 10px; min-height: 120px; }
.outline-tree { max-height: 420px; overflow: auto; overscroll-behavior: contain; padding: 12px 14px; border: 1px solid #e2e8f0; border-radius: 10px; background: #f8fafc; scrollbar-width: thin; }
.outline-tree:empty { display: none; }
.outline-chapter + .outline-chapter { margin-top: 12px; padding-top: 12px; border-top: 1px solid #e2e8f0; }
.outline-node { display: flex; align-items: flex-start; gap: 8px; min-height: 34px; }
.outline-node-number { min-width: 32px; padding-top: 6px; color: #94a3b8; font-size: 11px; font-variant-numeric: tabular-nums; }
.outline-node-title { min-width: 0; flex: 1; padding: 4px 0; font-size: 13px; line-height: 1.8; overflow-wrap: anywhere; cursor: text; }
.outline-node-title.is-chapter { font-weight: 600; }
.outline-node-title.is-empty { color: #94a3b8; }
.outline-node-children { margin-left: 15px; padding-left: 12px; border-left: 1px solid #e2e8f0; }
.outline-node-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.outline-node-actions button { min-height: 32px; padding: 5px 2px; border: 0; background: none; color: #94a3b8; font-size: 11px; white-space: nowrap; }
.outline-node-actions button:hover { color: #334155; }
.outline-node-actions .outline-delete:hover { color: #dc2626; }
.outline-node-title input { width: 100%; box-sizing: border-box; padding: 4px 7px; border: 1px solid #94a3b8; border-radius: 5px; background: white; color: #334155; font: inherit; outline: none; }
.outline-composer .outline-add-chapter { margin-top: 8px; }
.outline-notes { margin-top: 22px; padding-top: 18px; border-top: 1px solid #f1f5f9; }
.outline-notes > summary { display: flex; align-items: center; justify-content: space-between; gap: 10px; list-style: none; font-size: 13px; }
.outline-notes > summary::-webkit-details-marker { display: none; }
.outline-notes > summary > span:first-child::before { content: '›'; display: inline-block; margin-right: 9px; transition: transform .15s; }
.outline-notes[open] > summary > span:first-child::before { transform: rotate(90deg); }
.outline-notes #notes-counter { color: #94a3b8; font-size: 11px; white-space: nowrap; }
.outline-notes .outline-textarea { min-height: 105px; margin-top: 12px; }
.outline-actions { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 22px; padding-top: 18px; border-top: 1px solid #e2e8f0; }
.outline-action-context { min-width: 0; }
.outline-action-context p { margin: 0; font-size: 11px; color: #94a3b8; line-height: 1.7; }
.outline-composer .outline-primary-button { display: inline-flex; justify-content: center; align-items: center; flex-shrink: 0; gap: 12px; min-width: 156px; min-height: 44px; padding: 11px 20px; border: 0; border-radius: 8px; background: #1e293b; color: #fff; font-size: 13px; font-weight: 600; transition: background .15s; }
.outline-primary-button:hover:not(:disabled) { background: #334155; }
.outline-primary-button .material-symbols-outlined { font-size: 18px; }
.outline-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 640px) {
  .outline-composer { padding: 18px 16px; border-radius: 12px; }
  .outline-card-header { margin-bottom: 18px; }
  .outline-tabs { display: flex; }
  .outline-tabs button { flex: 1; padding: 9px 6px; }
  .outline-actions { align-items: stretch; flex-direction: column; gap: 12px; }
  .outline-composer .outline-primary-button { width: 100%; }
  .outline-action-context { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
  .outline-tree { padding: 10px; }
  .outline-node { gap: 5px; }
  .outline-node-children { margin-left: 5px; padding-left: 7px; }
  .outline-node-actions { gap: 5px; }
  .outline-node-number { min-width: 28px; font-size: 10px; }
}

.outline-language-settings { display: flex; justify-content: flex-end; margin-top: 12px; }
.outline-language-result { margin: 0 0 12px; padding: 9px 12px; border-radius: 7px; background: #f1f5f9; color: #475569; font-size: 12px; line-height: 1.7; }
.outline-language-result.is-warning { background: #fffbeb; color: #92400e; }