:root {
  --bg: #f8fafc;
  --panel: #ffffff;
  --muted: #64748b;
  --text: #1e293b;
  --brand: #2E71FC;
  --brand-600: #1e5ce6;
  --danger: #ef4444;
  --ok: #10b981;
  --border: #e2e8f0;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
}

.app__header {
  padding: 24px 24px 0;
}

.header__content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.header__text {
  flex: 1;
}

.header__logo {
  flex-shrink: 0;
  margin-left: 24px;
}

.header__logo svg {
  display: block;
  width: 200px;
  height: auto;
}

.app__header h1 {
  margin: 0 0 6px;
  font-size: 24px;
}

.app__header p {
  margin: 0;
  color: var(--muted);
}

.app__main {
  display: grid;
  grid-template-columns: minmax(340px, 520px) 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.panel--form {
  padding: 18px;
}

form fieldset {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  margin: 0 0 14px;
}

form legend {
  color: var(--muted);
  padding: 0 6px;
}

.field {
  margin: 10px 0 8px;
}

.grid-1 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 6px;
}

input, select, textarea {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(46, 113, 252, 0.1);
}

.hint {
  color: var(--muted);
  font-size: 11px;
}

.actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.actions__hint {
  font-size: 12px;
  color: #666;
  margin: 8px 0 0 0;
  font-style: italic;
  width: 100%;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: pointer;
  background: var(--panel);
  color: var(--text);
  transition: all 0.2s ease;
}

.btn--primary {
  background: linear-gradient(180deg, var(--brand), var(--brand-600));
  border: none;
  color: white;
}

.btn--primary:hover {
  background: linear-gradient(180deg, var(--brand-600), var(--brand));
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(46, 113, 252, 0.3);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(46, 113, 252, 0.2);
}

.btn--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--muted);
}

.btn--ghost:hover {
  background: var(--bg);
  color: var(--text);
}

.btn--secondary {
  background: var(--bg);
  border-color: var(--brand);
  color: var(--brand);
}

.btn--secondary:hover {
  background: var(--brand);
  color: white;
}

.panel--preview { padding: 0; }

.preview-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.page-navigation {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-info {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  min-width: 120px;
  text-align: center;
}


.preview { 
  padding: 16px;
  display: flex; 
  flex-direction: column; 
  gap: 18px; 
  min-height: 400px;
  justify-content: center;
  align-items: center;
}

.sheet { margin: 0 auto; background: white; color: #111827; border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,0.35); position: relative; overflow: hidden; }

.a4 {
  width: 210mm;
  min-height: 297mm;
}

.sheet__canvas { 
  position: relative; 
  width: 210mm; 
  height: 297mm; 
  z-index: 1; 
}
.sheet__canvas::before { 
  content: ''; 
  position: absolute; 
  top: 0; 
  left: 0; 
  right: 0; 
  bottom: 0; 
  background-image: inherit; 
  background-size: inherit; 
  background-position: inherit; 
  z-index: -1; 
  pointer-events: none;
}

.sheet--knd .sheet__canvas { background-image: var(--knd-bg-url, none); background-size: contain; background-repeat: no-repeat; background-position: top left; }

.sheet--knd#sheet1 { --knd-bg-url: var(--knd-page1, none); }
.sheet--knd#sheet2 { --knd-bg-url: var(--knd-page2, none); }

.sheet__header {
  text-align: center;
  margin-bottom: 8mm;
}

.sheet__knd {
  font-size: 12px;
  color: #6b7280;
}

.sheet__section h3 {
  margin: 0 0 4mm;
  font-size: 14px;
  color: #111827;
}

.sheet__section p {
  margin: 0 0 2.5mm;
  font-size: 12.5px;
}

.sheet__footer {
  margin-top: 14mm;
  font-size: 12px;
}

@media (max-width: 1100px) {
  .app__main {
    grid-template-columns: 1fr;
  }
  .panel--preview { order: 2; }
  
  .header__content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .header__logo {
    margin-left: 0;
    margin-top: 16px;
  }
}

/* Отрисовка клеточек */
.boxes { position: absolute; display: grid; grid-auto-flow: column; gap: 1.2mm; }
.boxes::before { content: attr(data-debug); }
.boxes span { display: inline-flex; width: 4.5mm; height: 6.2mm; border: 0.2mm solid rgba(0,0,0,0.6); align-items: center; justify-content: center; font-size: 10px; font-family: Inter, Arial, sans-serif; color: #111; }
.boxes span.empty { color: transparent; }

/* Текстовые оверлеи */
.overlay-text {
  position: absolute;
  font: 18px 'Courier New', Courier, monospace;
  font-weight: 700;
  color: #000 !important;
  white-space: pre;
  letter-spacing: 0px;
  z-index: 15;
  background: rgba(255, 235, 59, 0.6) !important;
  border: 2px solid #ffc107 !important;
  min-width: 20px;
  min-height: 20px;
  pointer-events: auto !important;
}
.overlay-char { 
  position: absolute; 
  font: 18px 'Courier New', Courier, monospace !important; 
  font-weight: 700 !important; 
  color: #000 !important; 
  display: flex !important;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-sizing: border-box;
  z-index: 15;
  background: rgba(255, 235, 59, 0.6) !important;
  border: 2px solid #ffc107 !important;
  min-width: 20px;
  min-height: 20px;
  font-size: 18px !important;
  line-height: 1 !important;
  pointer-events: auto !important;
}

/* Пустые поля в режиме редактирования - показываем выделение только для полей без данных */
.editor-mode .overlay-text:empty,
.editor-mode .overlay-char:empty {
  background: rgba(255, 255, 0, 0.3);
  border: 1px dashed #ff6b00;
  min-width: 20px;
  min-height: 15px;
}

/* Поля с заполненными данными - убираем выделение */
.editor-mode .overlay-char[data-has-data="true"] {
  background: transparent !important;
  border: none !important;
}

/* Поля без данных (содержат только нули или пустые) - показываем выделение */
.editor-mode .overlay-char[data-has-data="false"] {
  background: rgba(255, 255, 0, 0.3);
  border: 1px dashed #ff6b00;
}

/* Поле "Вид документа" - без выделения */
.overlay-char[data-field-name="Вид документа"] {
  background: transparent !important;
  border: none !important;
  z-index: 2;
}

/* Элементы без выделения */
.overlay-char.no-highlight,
.overlay-text.no-highlight {
  background: transparent !important;
  border: none !important;
}

/* Разделители страниц */
.page-separator {
  position: absolute;
  background-color: #000 !important;
  z-index: 3 !important;
  pointer-events: none;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.editor-mode .overlay-text:empty::after {
  content: "ПУСТОЕ ПОЛЕ";
  font-size: 8px;
  color: #ff6b00;
  position: absolute;
  top: -12px;
  left: 0;
  white-space: nowrap;
}

/* Боковая панель редактора позиций */
.position-editor {
  position: fixed;
  top: 0;
  right: 0;
  width: 320px;
  height: 100vh;
  background: var(--panel);
  border-left: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
  transform: translateX(100%);
  transition: transform 0.3s ease-in-out;
}

.position-editor--sidebar {
  transform: translateX(0);
}

/* Сдвигаем основной контент при открытии редактора */
body.editor-mode .app__container {
  margin-right: 320px;
  transition: margin-right 0.3s ease-in-out;
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
  .position-editor {
    width: 100%;
    transform: translateX(100%);
  }
  
  body.editor-mode .app__container {
    margin-right: 0;
  }
}

.editor-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.editor-header h3 {
  margin: 0;
  font-size: 14px;
  color: var(--text);
  font-weight: 600;
}

.editor-controls {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.editor-content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

.position-info {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 16px;
}

.coord-display {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
}

.coord-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
}

.coord-label {
  color: var(--muted);
  font-weight: 500;
}

.coord-value {
  color: var(--text);
  font-weight: 600;
  font-family: 'Courier New', monospace;
}

/* Список полей */
.field-list {
  margin-top: 16px;
  margin-bottom: 16px;
}

.field-list h4 {
  margin: 0 0 12px 0;
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
}

.field-items {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 200px;
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
}

.field-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  transition: all 0.2s ease;
  min-height: 40px;
  width: 100%;
}

.field-item:hover {
  background: rgba(46, 113, 252, 0.1);
  border-color: var(--brand);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(46, 113, 252, 0.15);
}

.field-item.selected {
  background: rgba(46, 113, 252, 0.15);
  border-color: var(--brand);
  box-shadow: 0 0 0 2px rgba(46, 113, 252, 0.2);
}

.field-item-name {
  color: var(--text);
  font-weight: 500;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.field-delete-btn {
  background: var(--danger) !important;
  color: white !important;
  border: none !important;
  border-radius: 4px !important;
  width: 24px !important;
  height: 24px !important;
  font-size: 12px !important;
  font-weight: bold !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all 0.2s ease !important;
  flex-shrink: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
}

.field-delete-btn:hover {
  background: #dc2626;
  transform: scale(1.1);
}

/* Маленькие кнопки */
.btn--small {
  padding: 4px 8px;
  font-size: 11px;
  min-width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}


/* Точные контролы */
.precise-controls {
  margin-bottom: 16px;
}

.precise-controls h4 {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--text);
}

.control-group {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.control-group label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
  margin: 0;
}

.control-group input[type="number"] {
  width: 60px;
  padding: 4px 6px;
  font-size: 12px;
}

.control-group input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.btn--small {
  height: 28px;
  padding: 0 8px;
  font-size: 12px;
  min-width: 28px;
}

/* Кнопки отмены и повтора */
#undoBtn, #redoBtn {
  font-size: 16px;
  font-weight: bold;
  min-width: 36px;
  padding: 0 8px;
}

#undoBtn:hover, #redoBtn:hover {
  background: color-mix(in oklab, var(--brand), transparent 70%);
  border-color: var(--brand);
}

/* Режим редактирования */
.editor-mode .overlay-text,
.editor-mode .overlay-char {
  cursor: move;
  user-select: none;
  z-index: 15;
  border: 2px solid #ff6b00;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
  color: #000 !important;
  pointer-events: auto !important;
}


.editor-mode .overlay-text:hover,
.editor-mode .overlay-char:hover {
  background: color-mix(in oklab, var(--brand), transparent 80%);
  border-color: var(--brand-600);
}

.editor-mode .overlay-text.dragging,
.editor-mode .overlay-char.dragging {
  z-index: 16;
  border-color: #00ff00;
  background: rgba(0, 255, 0, 0.9);
  box-shadow: 0 0 15px rgba(0, 255, 0, 0.8);
}

/* Названия полей */
.field-name-label {
  z-index: 12 !important;
  background: rgba(255, 255, 255, 0.95) !important;
  border: 1px solid #ff6b00 !important;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.5) !important;
}

/* Индикатор страницы для полей */
.page-indicator {
  position: absolute;
  top: -8px;
  right: -8px;
  background: #ff6b00;
  color: white;
  font-size: 10px;
  font-weight: bold;
  padding: 2px 4px;
  border-radius: 3px;
  z-index: 7;
  min-width: 16px;
  text-align: center;
}

/* Визуальная сетка */
.visual-grid {
  pointer-events: none !important;
}

/* Модальное окно с кодом */
.code-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.code-modal-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  max-width: 90vw;
  max-height: 90vh;
  width: 800px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.code-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.code-modal-header h3 {
  margin: 0;
  font-size: 18px;
  color: var(--text);
}

.code-modal-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.code-modal-close:hover {
  background: color-mix(in oklab, var(--danger), transparent 90%);
  color: var(--danger);
}

.code-modal-body {
  padding: 20px;
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.code-modal-body p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
}

.code-modal-body code {
  background: color-mix(in oklab, var(--brand), transparent 90%);
  color: var(--brand);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 12px;
}

.code-textarea {
  flex: 1;
  background: #0f1530;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  color: var(--text);
  font-family: 'Courier New', monospace;
  font-size: 12px;
  line-height: 1.4;
  resize: none;
  min-height: 400px;
  white-space: pre;
  overflow: auto;
}

.code-modal-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  justify-content: flex-end;
}

/* Уведомление об обновлении кода */
.code-update-notification {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10001;
  max-width: 400px;
}

.notification-content {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  overflow: hidden;
}

.notification-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: rgba(46, 113, 252, 0.1);
  border-bottom: 1px solid var(--border);
}

.notification-header h4 {
  margin: 0;
  font-size: 14px;
  color: var(--text);
}

.notification-close {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.notification-close:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

.notification-body {
  padding: 16px;
}

.notification-body p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.notification-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.notification-actions .btn {
  font-size: 12px;
  padding: 6px 12px;
  height: 32px;
}

/* Стили для радиокнопок */
.radio-group {
  display: flex;
  flex-direction: row;
  gap: 24px;
  margin-top: 8px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text);
  padding: 4px 0;
}

.radio-label input[type="radio"] {
  width: 16px;
  height: 16px;
  margin: 0;
  cursor: pointer;
  accent-color: var(--brand);
  flex-shrink: 0;
}

.radio-text {
  user-select: none;
  cursor: pointer;
  flex: 1;
}

.radio-label:hover .radio-text {
  color: var(--brand);
}

@media print {
  body { background: white; }
  .app__header, .panel--form, .btn, .actions { display: none !important; }
  .panel--preview { padding: 0; box-shadow: none; border: none; }
  .sheet { box-shadow: none; border-radius: 0; }
}

/* Стили для экспорта PDF */
.unified-document {
  position: relative;
  width: 210mm;
  height: 297mm;
  background: white;
  margin: 0 auto;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.unified-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}