/* ============================================================================
   Работни екрани за 8-те етапа на Потока след сканиране:
   1. Вход и DPI | 2. Scan Tailor в браузъра | 3. OCR и Сверка |
   4. Начална редакция (Mandor) | 5. Правопис и Речници (dd) |
   6. SFB Форматиране и $променливи | 7. Проверител на SFB | 8. Изходен пакет
   ========================================================================== */

/* ----------------- 3-панелен Scan Tailor изглед (Етап 2) ----------------- */

.st-workbench {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 230px;
  gap: var(--gap-md);
  min-height: 510px;
  height: calc(100dvh - 230px);
}

.st-left-panel,
.st-right-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
  overflow-y: auto;
}

.st-stages-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.st-stage-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 7px 10px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-panel-alt);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: all 0.14s ease;
}

.st-stage-item:hover {
  border-color: var(--accent-soft-border);
  color: var(--text-primary);
}

.st-stage-item.active {
  background: var(--accent-soft);
  border-color: var(--accent-soft-border);
  color: var(--accent);
}

.st-stage-num {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background: var(--overlay-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
}

.st-play-btn {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--accent-soft-border);
  background: var(--accent);
  color: #041d24;
  font-size: 11px;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}

.st-play-btn:hover {
  filter: brightness(1.1);
}

.st-params-box {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.st-params-box h4 {
  margin: 0;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
}

.st-canvas-wrap {
  background: #121016;
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  user-select: none;
}

[data-theme="light"] .st-canvas-wrap {
  background: #e2e0e8;
}

.st-canvas-stage {
  flex: 1;
  min-height: 0;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.st-canvas-wrap canvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
  cursor: grab;
  transform-origin: center center;
}

.st-canvas-wrap canvas:active {
  cursor: grabbing;
}

.st-canvas-toolbar {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-full);
  padding: 4px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-panel);
  font-size: var(--font-size-xs);
}

.st-thumbs-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  flex: 1;
}

.st-thumb-card {
  border: 2px solid var(--border-subtle);
  border-radius: var(--border-radius-md);
  background: var(--bg-panel-alt);
  padding: 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  position: relative;
  transition: border-color 0.14s, background 0.14s;
}

.st-thumb-card:hover {
  border-color: var(--accent-soft-border);
}

.st-thumb-card.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.st-thumb-card img,
.st-thumb-card canvas {
  width: 100%;
  max-height: 130px;
  object-fit: contain;
  border-radius: 4px;
  background: #fff;
}

.st-thumb-unprocessed {
  position: absolute;
  inset: 6px 6px 24px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
  font-weight: 900;
  color: rgba(120, 120, 135, 0.55);
  pointer-events: none;
}

.st-thumb-meta {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-secondary);
  font-family: var(--doc-mono);
}

/* Бутони за почистване на шум (Метлички) */
.st-brushes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.st-brush-btn {
  padding: 6px 4px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-panel);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  text-align: center;
}

.st-brush-btn.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

/* ----------------- Двупанелен OCR и Сверка (Етап 3) ----------------- */

.ocr-split-view {
  display: grid;
  grid-template-columns: minmax(280px, 46%) minmax(0, 54%);
  gap: var(--gap-md);
  min-height: 460px;
}

.ocr-image-pane,
.ocr-text-pane {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
}

.ocr-image-box {
  flex: 1;
  min-height: 360px;
  background: #121016;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 8px;
}

/* ----------- Начална редакция - 13 стъпки на Mandor (Етап 4) ----------- */

.mandor-rules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 10px;
}

.mandor-rule-card {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent);
  border-radius: var(--border-radius-md);
  padding: 11px 13px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mandor-rule-card.clean {
  border-left-color: var(--green);
}

.mandor-rule-card.has-hits {
  border-left-color: var(--amber);
}

.mandor-rule-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.mandor-rule-head strong {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.mandor-rule-desc {
  margin: 0;
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  line-height: 1.4;
}

.mandor-samples {
  font-family: var(--doc-mono);
  font-size: 11px;
  background: var(--overlay-weak);
  border-radius: 6px;
  padding: 6px 8px;
  color: var(--text-secondary);
  max-height: 92px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

/* ----------- Правопис и Речници по честота - IDI стил (Етап 5) ----------- */

.spell-workbench {
  display: grid;
  grid-template-columns: 370px minmax(0, 1fr);
  gap: var(--gap-md);
  min-height: 480px;
}

.spell-groups-pane,
.spell-context-pane {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
  min-height: 0;
}

.spell-word-list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  max-height: 410px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.spell-word-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 7px 10px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-panel);
  cursor: pointer;
  font-size: var(--font-size-sm);
}

.spell-word-item:hover,
.spell-word-item.active {
  border-color: var(--accent-soft-border);
  background: var(--accent-soft);
}

.spell-word-token {
  font-family: var(--doc-mono);
  font-weight: 700;
  color: var(--text-primary);
}

.spell-word-item.risk .spell-word-token {
  color: var(--amber);
}

.spell-word-item.error .spell-word-token {
  color: var(--red);
}

.spell-word-item.proper .spell-word-token {
  color: var(--blue);
}

/* ----------- SFB Форматиране и Проверител на SFB (Етапи 6 и 7) ----------- */

.sfb-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 8px;
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-md);
}

.sfb-tag-btn {
  font-family: var(--doc-mono);
  font-size: 11.5px;
  font-weight: 700;
  padding: 4px 9px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-panel);
  color: var(--accent);
  cursor: pointer;
}

.sfb-tag-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent-soft-border);
}

.sfb-tag-btn span {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 4px;
}

.sfb-split-editor {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: var(--gap-md);
}

.sfb-code-textarea {
  width: 100%;
  min-height: 430px;
  font-family: var(--doc-mono);
  font-size: 12.5px;
  line-height: 1.6;
  tab-size: 4;
  padding: 14px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-panel-alt);
  color: var(--text-primary);
  resize: vertical;
  outline: none;
  white-space: pre-wrap;
}

.sfb-code-textarea:focus {
  border-color: var(--accent-soft-border);
}

/* Засветване в Проверителя на SFB */
.proveritel-layout {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: var(--gap-md);
  min-height: 470px;
}

.proveritel-index-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-xs);
}

.proveritel-index-table th {
  position: sticky;
  top: 0;
  background: var(--bg-panel);
  text-align: left;
  padding: 7px 8px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
  text-transform: uppercase;
  cursor: pointer;
}

.proveritel-index-table td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

.proveritel-output-box {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-md);
  padding: 16px;
  font-family: var(--doc-mono);
  font-size: 12.5px;
  line-height: 1.68;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 490px;
  overflow-y: auto;
  tab-size: 4;
}

/* Цветове на засветване според Проверителя на Моята библиотека:
   - Жълт за цифри и латински букви
   - Синьо-зелен за интервали, пунктуация и всичко останало
   - Червен за SFB структурни грешки */
.hl-mark {
  padding: 1px 3px;
  border-radius: 3px;
  font-weight: 700;
  cursor: pointer;
  scroll-margin-top: 90px;
}

.hl-yellow {
  background: rgba(251, 191, 36, 0.32);
  color: #fde68a;
  border-bottom: 2px solid #f59e0b;
}

[data-theme="light"] .hl-yellow {
  background: #fef08a;
  color: #713f12;
}

.hl-teal {
  background: rgba(34, 211, 238, 0.26);
  color: #a5f3fc;
  border-bottom: 2px solid #06b6d4;
}

[data-theme="light"] .hl-teal {
  background: #a5f3fc;
  color: #164e63;
}

.hl-sfb {
  background: rgba(248, 113, 113, 0.30);
  color: #fecaca;
  border-bottom: 2px solid #ef4444;
}

[data-theme="light"] .hl-sfb {
  background: #fecaca;
  color: #7f1d1d;
}

.hl-mark.current-focus {
  outline: 2px solid #ffffff;
  box-shadow: 0 0 0 4px var(--accent);
}

/* ----------- Преглед като Електронна Книга (Читанка четец) ----------- */

.ebook-preview-sheet {
  background: var(--doc-paper);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-lg);
  padding: 28px 36px;
  font-family: var(--doc-display);
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--text-primary);
  max-height: 520px;
  overflow-y: auto;
  box-shadow: var(--shadow-panel);
}

.ebook-preview-sheet .sfb-book-author {
  font-size: 1.15rem;
  color: var(--accent);
  font-weight: 700;
  text-align: center;
  margin-bottom: 4px;
}

.ebook-preview-sheet .sfb-book-title {
  font-size: 1.65rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 18px;
}

.ebook-preview-sheet .sfb-annotation {
  background: var(--overlay-weak);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  margin: 14px 0;
  font-size: 0.92rem;
  font-style: italic;
  border-radius: 0 8px 8px 0;
}

.ebook-preview-sheet .sfb-dedication {
  text-align: right;
  font-style: italic;
  margin: 14px 0 20px;
  color: var(--text-secondary);
}

.ebook-preview-sheet .sfb-epigraph {
  margin: 12px 0 18px auto;
  max-width: 72%;
  font-size: 0.92rem;
  color: var(--text-secondary);
  border-right: 2px solid var(--border-subtle);
  padding-right: 12px;
  text-align: right;
}

.ebook-preview-sheet .sfb-poem {
  margin: 14px 28px;
  font-style: italic;
}

.ebook-preview-sheet .sfb-cite {
  margin: 14px 20px;
  padding-left: 14px;
  border-left: 2px solid var(--border-subtle);
}

.ebook-preview-sheet .sfb-chapter {
  font-size: 1.25rem;
  font-weight: 700;
  text-align: center;
  margin: 24px 0 12px;
  color: var(--text-primary);
}

.ebook-preview-sheet .sfb-p {
  margin: 0 0 8px;
  text-indent: 1.8em;
  text-align: justify;
}

.ebook-preview-sheet .sfb-info-box {
  margin-top: 28px;
  padding: 14px 18px;
  border-top: 2px dashed var(--border-subtle);
  background: var(--overlay-weak);
  border-radius: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 12.5px;
}

/* ----------- Зона за пускане на файлове (Dropzone) ----------- */

.dropzone-box {
  border: 2px dashed var(--accent-soft-border);
  background: var(--bg-panel-alt);
  border-radius: var(--border-radius-lg);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.dropzone-box:hover,
.dropzone-box.dragover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

@media (max-width: 1120px) {
  .st-workbench,
  .ocr-split-view,
  .spell-workbench,
  .sfb-split-editor,
  .proveritel-layout {
    grid-template-columns: 1fr;
    height: auto;
  }
}