/* ═══════════════════════════════════════
   ПФК Кассеты — Веб-интерфейс CSS
   Фирменный стиль @pfk/design
   ═══════════════════════════════════════ */

@font-face {
  font-family: 'TT Norms Pro';
  src: url('/static/fonts/ttnormspro-regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'TT Norms Pro';
  src: url('/static/fonts/ttnormspro-medium.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'TT Norms Pro';
  src: url('/static/fonts/ttnormspro-bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --color-navy: #0A2A3F;
  --color-navy-hover: #1A3F5C;
  --color-primary: #0082FF;
  --color-primary-dark: #0070DD;
  --color-primary-light: #4DA3FF;
  --color-success: #2F8F5B;
  --color-success-dark: #25744A;
  --color-warning: #C8901E;
  --color-error: #C0392B;
  --color-bg: #F3F6F8;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F7F8FA;
  --color-text: #0A2A3F;
  --color-text-muted: #5C6876;
  --color-border: #D7DCE0;
  --color-border-hover: #A6B1BE;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --transition: 0.2s ease;
  --font: 'TT Norms Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; top: -40px; left: 8px; z-index: 1000;
  background: var(--color-primary); color: #fff; padding: 8px 16px;
  border-radius: var(--radius-sm); text-decoration: none;
  transition: top var(--transition);
}
.skip-link:focus { top: 8px; }

/* ─── Шапка ──────────────────────── */
.app-header {
  background: var(--color-navy);
  border-bottom: 1px solid var(--color-navy);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.header-inner {
  max-width: 1400px; margin: 0 auto;
  padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.header-logo { display: flex; align-items: center; gap: 12px; }
.logo-img { width: 36px; height: 36px; object-fit: contain; }
.header-titles { display: flex; flex-direction: column; }
.header-title { font-size: 16px; font-weight: 700; color: #FFFFFF; line-height: 1.2; }
.header-subtitle { font-size: 11px; color: rgba(255,255,255,0.65); letter-spacing: 0.3px; }

.header-steps { display: flex; align-items: center; gap: 4px; }
.step-indicator {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 20px;
  font-size: 12px; color: rgba(255,255,255,0.65);
  transition: all var(--transition);
}
.step-indicator[aria-current="step"] {
  background: var(--color-primary);
  color: #fff;
}
.step-indicator.done {
  color: #6FCF97;
}
.step-num {
  width: 20px; height: 20px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%; font-size: 11px; font-weight: 600;
  border: 1.5px solid currentColor;
}
.step-indicator[aria-current="step"] .step-num { border-color: rgba(255,255,255,0.5); }
.step-indicator.done .step-num { background: var(--color-success); color: #fff; border-color: transparent; }
.step-connector { width: 16px; height: 1px; background: rgba(255,255,255,0.25); }
.step-label { display: none; }
@media (min-width: 768px) { .step-label { display: inline; } }

/* ─── Экраны ─────────────────────── */
.screen { display: none; flex: 1; }
.screen-active { display: flex; }

/* ─── ЭКРАН 1: Загрузка ──────────── */
.upload-container {
  max-width: 640px; margin: 0 auto; padding: 48px 24px;
  display: flex; flex-direction: column; gap: 24px;
}
.upload-hero { text-align: center; }
.upload-title { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.upload-desc { color: var(--color-text-muted); font-size: 14px; }

.drop-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--color-surface);
}
.drop-zone:hover, .drop-zone:focus-visible { border-color: var(--color-primary); background: rgba(0,130,255,0.03); }
.drop-zone.drag-over { border-color: var(--color-primary); background: rgba(0,130,255,0.08); transform: scale(1.01); }

.drop-zone-inner { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.drop-primary { font-size: 16px; font-weight: 600; }
.drop-secondary { font-size: 13px; color: var(--color-text-muted); }
.drop-limits { font-size: 11px; color: var(--color-text-muted); }

.file-list-container {
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.file-list-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; border-bottom: 1px solid var(--color-border);
}
.file-list-title { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.badge {
  background: var(--color-primary); color: #fff;
  font-size: 11px; padding: 2px 8px; border-radius: 10px;
}
.file-list { list-style: none; }
.file-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}
.file-item:last-child { border-bottom: 0; }
.file-item:hover { background: var(--color-surface-alt); }
.file-item-icon { font-size: 18px; }
.file-item-name { flex: 1; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-item-size { font-size: 12px; color: var(--color-text-muted); }
.file-item-remove {
  background: none; border: none; cursor: pointer;
  font-size: 16px; color: var(--color-text-muted);
  padding: 4px; border-radius: 4px;
  transition: all var(--transition);
}
.file-item-remove:hover { color: var(--color-error); background: rgba(192,57,43,0.1); }

.upload-actions { text-align: center; }

/* ─── B-7: Ручной ввод / paste из Excel ─────────────── */
.upload-divider {
  display: flex; align-items: center; gap: 12px;
  margin: 8px 0 4px;
  color: var(--color-text-muted); font-size: 12px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.upload-divider::before,
.upload-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--color-border);
}
.manual-input-section {
  display: flex; flex-direction: column; gap: 12px;
  padding: 20px; background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: var(--radius);
}
.manual-input-title {
  font-size: 15px; font-weight: 600; margin: 0;
}
.manual-input-hint {
  font-size: 12px; color: var(--color-text-muted); line-height: 1.5;
}
.manual-input-hint code {
  background: var(--color-surface-alt); padding: 1px 5px; border-radius: 3px;
  font-family: 'Cascadia Code', 'Fira Code', monospace; font-size: 11px;
}
.manual-input-hint kbd {
  background: var(--color-surface-alt); padding: 1px 6px; border-radius: 3px;
  font-family: monospace; font-size: 11px; border: 1px solid var(--color-border);
  box-shadow: 0 1px 0 var(--color-border);
}
.manual-table-wrapper {
  max-height: 360px; overflow-y: auto; overflow-x: auto;
  border: 1px solid var(--color-border); border-radius: var(--radius-xs);
  background: var(--color-surface);
}
.manual-table {
  width: 100%; min-width: 720px;
  border-collapse: collapse; font-size: 13px;
}
.manual-table thead th {
  position: sticky; top: 0; z-index: 1;
  background: var(--color-surface-alt);
  padding: 8px 6px; font-size: 12px; font-weight: 600;
  text-align: center; color: var(--color-text-muted);
  border-bottom: 2px solid var(--color-border);
  white-space: nowrap;
}
.manual-table .mt-col-type    { min-width: 100px; }
.manual-table .mt-col-mark    { min-width: 70px; }
.manual-table .mt-col-color   { min-width: 100px; }
.manual-table .mt-col-num     { min-width: 64px; }
.manual-table .mt-col-actions { width: 36px; }
.manual-table td {
  padding: 0; border-bottom: 1px solid var(--color-border);
}
.manual-table tr:focus-within {
  background: rgba(0,130,255,0.04);
}
.manual-table input.manual-cell {
  width: 100%; height: 34px;
  padding: 4px 8px; border: none; background: transparent;
  font: inherit; color: var(--color-text);
  text-align: center;
}
.manual-table input.manual-cell:focus {
  outline: 2px solid var(--color-primary); outline-offset: -2px;
  background: var(--color-surface);
}
.manual-table .mt-col-mark input,
.manual-table .mt-col-color input { text-align: left; }
.manual-table .btn-row-delete {
  background: none; border: none; cursor: pointer;
  font-size: 14px; padding: 4px; opacity: 0.4;
  transition: opacity var(--transition);
}
.manual-table .btn-row-delete:hover { opacity: 1; }
.manual-input-actions { display: flex; justify-content: flex-end; gap: 8px; }

/* ─── Кнопки ─────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border: none; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all var(--transition);
  text-decoration: none;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-dark); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover:not(:disabled) { border-color: var(--color-primary); color: var(--color-primary); }
.btn-success { background: var(--color-success); color: #fff; }
.btn-success:hover:not(:disabled) { background: var(--color-success-dark); }
.btn-ghost { background: none; border: none; color: var(--color-primary); cursor: pointer; font-weight: 600; font-size: 13px; padding: 4px 8px; border-radius: var(--radius-xs); }
.btn-ghost:hover { background: rgba(0,130,255,0.1); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-icon { font-size: 1.1em; }

/* ─── ЭКРАН 2: Загрузка/распознавание ── */
.loading-container {
  max-width: 480px; margin: auto; padding: 64px 24px;
  text-align: center; display: flex; flex-direction: column; align-items: center; gap: 20px;
}
.loading-animation { position: relative; width: 80px; height: 80px; }
.loading-ring {
  position: absolute; inset: 0;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-logo {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; color: var(--color-primary);
}
.loading-title { font-size: 20px; font-weight: 700; }
.loading-subtitle { color: var(--color-text-muted); font-size: 14px; }

.progress-bar-wrap {
  width: 100%; height: 6px; background: var(--color-border);
  border-radius: 3px; overflow: hidden;
}
.progress-bar {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: 3px;
  transition: width 0.5s ease;
}

.loading-file-list { list-style: none; width: 100%; text-align: left; }
.loading-file-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px; border-radius: var(--radius-xs);
  font-size: 13px; margin-bottom: 4px;
  background: var(--color-surface); border: 1px solid var(--color-border);
}
.loading-file-status { font-size: 12px; white-space: nowrap; }
.status-processing { color: var(--color-primary); }
.status-done { color: var(--color-success); }
.status-error { color: var(--color-warning); }

/* ─── ЭКРАН 3: Предпросмотр ──────── */
.preview-layout {
  display: flex; flex: 1;
  min-height: 0;
  height: calc(100vh - 60px);
}
.panel {
  display: flex; flex-direction: column;
  min-height: 0; overflow: hidden;
}
.panel-left { flex: 0 0 45%; min-width: 280px; max-width: 85%; border-right: 1px solid var(--color-border); }
/* min-width: 0 + overflow:hidden критично — внутри panel-right только table-wrapper скроллится,
   а actions-bar внизу остаётся видимым (раньше вся panel-right имела overflow-y:auto,
   actions-bar улетал за нижний край viewport на маленьких экранах) */
.panel-right { flex: 1 1 0; min-width: 0; overflow: hidden; }

.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--color-border);
  background: var(--color-surface); gap: 12px; flex-shrink: 0;
  flex-wrap: wrap; row-gap: 8px;
}
.panel-title { font-size: 14px; font-weight: 700; white-space: nowrap; }
.panel-header-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.file-selector {
  padding: 4px 8px; border: 1px solid var(--color-border);
  border-radius: var(--radius-xs); font-size: 12px;
  max-width: 200px; background: var(--color-surface);
}

.panel-divider {
  flex: 0 0 6px;
  cursor: col-resize;
  background: var(--color-border);
  transition: background var(--transition);
  user-select: none;
  touch-action: none;
  position: relative;
}
.panel-divider:hover,
.panel-divider:active,
body.resizing .panel-divider { background: var(--color-primary); }
/* Расширяем hit-area до 12px без визуального изменения ширины */
.panel-divider::before {
  content: ''; position: absolute; top: 0; bottom: 0;
  left: -3px; right: -3px;
}
/* Захват drag — отключаем select/cursor/iframe pointer-events */
body.resizing { cursor: col-resize !important; user-select: none !important; }
body.resizing iframe, body.resizing embed, body.resizing object { pointer-events: none; }

.document-viewer {
  flex: 1; min-height: 0; overflow: auto; padding: 16px;
  max-height: calc(100vh - 200px);
  background: var(--color-surface-alt);
  /* Ensure scrollbars are always visible when content overflows */
  scrollbar-width: auto;
  scrollbar-color: var(--color-border-hover) var(--color-surface-alt);
}
.document-viewer::-webkit-scrollbar { width: 10px; height: 10px; }
.document-viewer::-webkit-scrollbar-track { background: var(--color-surface-alt); border-radius: 5px; }
.document-viewer::-webkit-scrollbar-thumb { background: var(--color-border-hover); border-radius: 5px; border: 2px solid var(--color-surface-alt); }
.document-viewer::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* Zoom wrapper — scales content via transform (not CSS zoom, to avoid layout expansion) */
.viewer-zoom-wrapper {
  transform-origin: top left;
  transition: transform 0.15s ease;
  width: 100%;
}

.viewer-placeholder {
  display: flex; align-items: center; justify-content: center;
  height: 100%; color: var(--color-text-muted); font-size: 14px;
}
.viewer-image {
  max-width: 100%; height: auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}
.viewer-text {
  font-family: 'Cascadia Code', 'Fira Code', monospace;
  font-size: 12px; white-space: pre-wrap; word-break: break-word;
  padding: 16px; background: var(--color-surface);
  border-radius: var(--radius-sm); border: 1px solid var(--color-border);
}
.pdf-page {
  display: block; margin: 0 auto 12px;
  box-shadow: var(--shadow); border-radius: 2px; max-width: 100%;
}
.viewer-excel-table {
  width: 100%; border-collapse: collapse; font-size: 11px;
}
.viewer-excel-table th, .viewer-excel-table td {
  padding: 4px 8px; border: 1px solid var(--color-border);
  text-align: left; max-width: 200px; overflow: hidden; text-overflow: ellipsis;
}
.viewer-excel-table th {
  background: var(--color-surface-alt); font-weight: 600;
  position: sticky; top: 0;
}
.viewer-sheet-tabs { display: flex; gap: 4px; padding: 8px 0; }
.viewer-sheet-tab {
  padding: 4px 12px; border: 1px solid var(--color-border);
  border-radius: var(--radius-xs); font-size: 12px;
  background: var(--color-surface); cursor: pointer;
  transition: all var(--transition);
}
.viewer-sheet-tab.active {
  background: var(--color-primary); color: #fff; border-color: var(--color-primary);
}

/* ─── Мета-блок ──────────────────── */
.meta-block {
  padding: 12px 16px;
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
}
.meta-row {
  display: flex; align-items: center; gap: 12px;
  padding: 6px 0;
}
.meta-label { font-size: 13px; font-weight: 600; min-width: 130px; }
.meta-ctrl { flex: 1; }

.meta-detected { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.meta-value-badge {
  background: rgba(0,130,255,0.1); color: var(--color-primary);
  padding: 4px 10px; border-radius: var(--radius-xs); font-size: 13px; font-weight: 500;
}
.meta-choice-group { display: flex; gap: 6px; flex-wrap: wrap; }
.meta-choice-btn {
  padding: 6px 14px; border: 1px solid var(--color-border);
  border-radius: var(--radius-xs); font-size: 13px;
  background: var(--color-surface); cursor: pointer;
  transition: all var(--transition);
}
.meta-choice-btn:hover { border-color: var(--color-primary); }
.meta-choice-btn.selected {
  background: var(--color-primary); color: #fff; border-color: var(--color-primary);
}
.meta-confirmed {
  color: var(--color-success); font-size: 13px; font-weight: 500;
}

/* ─── Таблица позиций ────────────── */
/* Toolbar над таблицей — фиксированной высоты, всегда виден */
.table-toolbar {
  display: flex; align-items: center; justify-content: flex-end;
  gap: 8px; padding: 6px 16px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  flex-shrink: 0;
}

.table-wrapper {
  /* flex:1 1 0 + min-height:0 + overflow:auto = таблица занимает всё свободное место
     между table-toolbar сверху и actions-bar снизу. actions-bar всегда виден без скролла */
  flex: 1 1 0; min-height: 0;
  overflow-x: auto; overflow-y: auto;
  padding: 0 16px;
}
.positions-table {
  /* min-width гарантирует видимость всех 9 колонок (Тип/Марка/Цвет/H/L/L2/L3/Кол-во/действия)
     — при узкой панели появляется горизонтальный скролл вместо обрезки */
  width: 100%; min-width: 640px;
  border-collapse: collapse; font-size: 13px;
}
.positions-table th {
  padding: 8px 6px; font-size: 12px; font-weight: 600;
  text-align: center; color: var(--color-text-muted);
  border-bottom: 2px solid var(--color-border);
  position: sticky; top: 0; background: var(--color-surface);
  white-space: nowrap;
}
.positions-table td {
  padding: 4px 4px; text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.col-type { width: 90px; }
.col-mark { width: 70px; }
.col-color { width: 100px; }
.col-num { width: 70px; }
.col-actions { width: 36px; }

.type-select {
  width: 100%; padding: 4px; border: 1px solid transparent;
  border-radius: var(--radius-xs); font-size: 12px;
  background: transparent; cursor: pointer;
}
.type-select:focus { border-color: var(--color-primary); outline: none; }

.cell-editable {
  padding: 4px 6px; border-radius: var(--radius-xs);
  min-height: 28px; border: 1px solid transparent;
  transition: all var(--transition); font-size: 13px;
  outline: none;
}
.cell-editable:focus { border-color: var(--color-primary); background: #fff; box-shadow: 0 0 0 2px rgba(0,130,255,0.2); }
.cell-low { background: #F9F0DC; border-color: var(--color-warning); }
.cell-confirmed { background: #DFF0E6; border-color: var(--color-success); }

.btn-row-delete {
  background: none; border: none; cursor: pointer;
  font-size: 14px; padding: 4px; border-radius: 4px;
  opacity: 0.4; transition: opacity var(--transition);
}
.btn-row-delete:hover { opacity: 1; }

.table-empty {
  text-align: center; padding: 32px; color: var(--color-text-muted); font-size: 14px;
}

.table-stats {
  display: flex; gap: 16px; padding: 8px 16px;
  border-top: 1px solid var(--color-border);
  font-size: 13px; flex-wrap: wrap;
}
.stats-item { display: flex; align-items: center; gap: 4px; }
.stats-val { color: var(--color-primary); }
.stats-warn { color: var(--color-warning); }

.actions-bar {
  padding: 12px 16px; border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  flex-shrink: 0;  /* пинится внизу panel-right, не сжимается под нагрузкой */
}
.actions-buttons { display: flex; gap: 12px; justify-content: flex-end; flex-wrap: wrap; }

/* ─── ЭКРАН 4: Расчёт ────────────── */
.calc-container {
  max-width: 720px; margin: 0 auto; padding: 32px 24px;
  display: flex; flex-direction: column; gap: 24px;
}
/* When result block is shown, allow it to span wider so 3 cards fit without horizontal scroll.
   Class toggled by JS; avoids CSS :has() which is unsupported on older Safari/Firefox. */
.calc-container.has-result {
  max-width: min(1600px, calc(100vw - 32px));
}
.calc-container .calc-title,
.calc-container .calc-params,
.calc-container .calc-actions {
  max-width: 720px; margin-left: auto; margin-right: auto; width: 100%;
}
.calc-result { width: 100%; }
.calc-title { font-size: 22px; font-weight: 700; text-align: center; }

.calc-params {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  background: var(--color-surface);
  padding: 24px; border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.calc-param-group { display: flex; flex-direction: column; gap: 6px; }
.calc-param-checks { grid-column: 1 / -1; display: flex; gap: 24px; flex-wrap: wrap; }

.param-label { font-size: 13px; font-weight: 600; color: var(--color-text-muted); }
.param-input {
  padding: 8px 12px; border: 1px solid var(--color-border);
  border-radius: var(--radius-xs); font-size: 14px;
  font-family: var(--font); transition: border-color var(--transition);
  background: var(--color-surface);
}
.param-input:focus { border-color: var(--color-primary); outline: none; box-shadow: 0 0 0 2px rgba(0,130,255,0.15); }
.param-input-sm { max-width: 160px; }

.checkbox-label {
  display: flex; align-items: center; gap: 8px;
  cursor: pointer; font-size: 14px; user-select: none;
}
.checkbox-label input { display: none; }
.checkbox-custom {
  width: 18px; height: 18px; border: 2px solid var(--color-border);
  border-radius: 4px; transition: all var(--transition);
  position: relative; flex-shrink: 0;
}
.checkbox-label input:checked + .checkbox-custom {
  background: var(--color-primary); border-color: var(--color-primary);
}
.checkbox-label input:checked + .checkbox-custom::after {
  content: '✓'; position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 12px; font-weight: 700;
}

.calc-actions { display: flex; gap: 12px; justify-content: center; }

.calc-result {
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  padding: 24px; animation: fadeIn 0.3s ease;
}
.calc-result-title { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.calc-result-text {
  font-family: 'Cascadia Code', 'Fira Code', monospace;
  font-size: 12px; white-space: pre-wrap;
  background: var(--color-surface-alt);
  padding: 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  max-height: 400px; overflow-y: auto;
  line-height: 1.6;
}
.calc-result-actions { margin-top: 16px; text-align: center; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ─── ЭКРАН 5: КП ────────────────── */
.kp-container {
  max-width: 720px; margin: 0 auto; padding: 32px 24px;
  display: flex; flex-direction: column; gap: 24px;
}
.kp-title { font-size: 22px; font-weight: 700; text-align: center; }
.kp-section-title { font-size: 14px; font-weight: 600; color: var(--color-text-muted); }

.kp-options {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  background: var(--color-surface);
  padding: 24px; border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.kp-option-group { display: flex; flex-direction: column; gap: 6px; }

.kp-client {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 12px;
  background: var(--color-surface);
  padding: 20px; border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.kp-download-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.kp-download-btn {
  display: flex; flex-direction: column; align-items: center;
  gap: 8px; padding: 24px 16px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer; transition: all var(--transition);
  font-family: var(--font);
}
.kp-download-btn:hover {
  border-color: var(--color-primary);
  background: rgba(0,130,255,0.03);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.kp-download-btn:active { transform: translateY(0); }
.kp-download-btn.downloading {
  opacity: 0.6; pointer-events: none;
}
.kp-dl-icon { font-size: 28px; }
.kp-dl-title { font-size: 14px; font-weight: 600; }
.kp-dl-desc { font-size: 12px; color: var(--color-text-muted); }

.kp-actions { display: flex; gap: 12px; justify-content: center; }

/* ─── Toast ──────────────────────── */
.toast-container {
  position: fixed; bottom: 24px; right: 24px;
  display: flex; flex-direction: column-reverse; gap: 8px;
  z-index: 10000;
}
.toast {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-radius: var(--radius-sm);
  background: var(--color-surface); color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg); max-width: 400px;
  font-size: 13px; animation: slideIn 0.3s ease;
}
.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-error); }
.toast-warning { border-left: 4px solid var(--color-warning); }
.toast-info { border-left: 4px solid var(--color-primary); }
.toast-icon { font-size: 16px; flex-shrink: 0; }
.toast-msg { flex: 1; }
.toast-close {
  background: none; border: none; font-size: 18px;
  cursor: pointer; color: var(--color-text-muted);
  padding: 0 4px;
}
.toast-out { animation: slideOut 0.3s ease forwards; }

@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes slideOut { to { transform: translateX(100%); opacity: 0; } }

/* ─── Адаптивность ───────────────── */
@media (max-width: 768px) {
  .header-inner { padding: 8px 16px; }
  .header-steps { gap: 2px; }
  .step-connector { width: 8px; }
  .preview-layout { flex-direction: column; }
  .panel-left { flex: none; height: 40vh; border-right: 0; border-bottom: 1px solid var(--color-border); }
  .panel-divider { display: none; }
  .kp-download-grid { grid-template-columns: 1fr; }
  .calc-params { grid-template-columns: 1fr; }
  .kp-client { grid-template-columns: 1fr; }
}

/* === Three-view calc result === */
.calc-summary { display:flex; gap:20px; margin:16px 0; padding:14px 18px; background:#EAF4FF; border-radius:10px; flex-wrap:wrap; }
.calc-summary-row { display:flex; gap:8px; align-items:baseline; font-size:15px; color:#5C6876; }
.calc-summary-row b { color:#0A2A3F; font-size:18px; }
.calc-summary-total { margin-left:auto; }
.calc-summary-total b { color:#0082FF; font-size:22px; }
.calc-views-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:14px; margin:16px 0; }
.calc-view-card { padding:14px 16px; border:1px solid #D7DCE0; border-radius:10px; background:#fff; }
.calc-view-card.calc-view-facade { border-color:#0082FF; background:#EAF4FF; }
.calc-view-header { margin-bottom:10px; padding-bottom:8px; border-bottom:1px solid #E9EDF0; }
.calc-view-title { font-weight:600; font-size:15px; color:#0A2A3F; }
.calc-view-hint { font-size:11px; color:#A6B1BE; margin-top:2px; }
.calc-view-stat { display:flex; justify-content:space-between; padding:4px 0; font-size:14px; }
.calc-view-stat-label { color:#5C6876; }
.calc-view-stat b { color:#0A2A3F; }
.calc-positions-wrap { overflow-x:auto; margin:14px 0; }
.calc-positions-table { width:100%; border-collapse:collapse; font-size:13px; }
.calc-positions-table th, .calc-positions-table td { padding:8px 10px; text-align:left; border-bottom:1px solid #E9EDF0; }
.calc-positions-table th { background:#F7F8FA; font-weight:600; color:#5C6876; }
.calc-positions-table th .th-sub { font-weight:400; font-size:11px; color:#A6B1BE; }
.calc-positions-table .cell-facade { background:#EAF4FF; }
.calc-positions-table .cell-sub { color:#A6B1BE; font-size:11px; }
.calc-positions-table .cell-cost { text-align:right; white-space:nowrap; }
.calc-note { margin-top:14px; padding:12px 14px; background:#FAF3E2; border-left:3px solid #C8901E; border-radius:6px; font-size:13px; color:#5d4d20; }
@media (max-width:780px) {
  .calc-views-grid { grid-template-columns:1fr; }
  .calc-positions-table { font-size:12px; }
}

/* === Three full calc cards side-by-side === */
.calc-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 16px 0;
}
.calc-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #D7DCE0;
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 3px rgba(16,24,40,0.04);
}
.calc-card[data-view="facade"] {
  border-color: #0082FF;
  box-shadow: 0 2px 8px rgba(0,130,255,0.08);
}
.calc-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid #E9EDF0;
}
.calc-card-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: #0A2A3F;
  line-height: 1.3;
}
.calc-card-sub {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: #5C6876;
  margin-top: 2px;
}
.calc-card-check {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #5C6876;
  cursor: pointer;
  white-space: nowrap;
}
.calc-card-text {
  flex: 1;
  margin: 0 0 12px;
  padding: 12px;
  background: #F7F8FA;
  border-radius: 8px;
  font-family: 'JetBrains Mono', 'Consolas', 'Monaco', monospace;
  font-size: 11px;
  line-height: 1.45;
  color: #0A2A3F;
  white-space: pre;
  overflow-x: auto;
}
.calc-card-kp {
  width: 100%;
}
@media (max-width: 1100px) {
  .calc-cards-grid { grid-template-columns: 1fr; }
}

.kp-view-selector { display:flex; gap:16px; flex-wrap:wrap; margin:12px 0 20px; padding:14px 18px; background:#EAF4FF; border:1px solid #B8DCFF; border-radius:10px; }
.kp-view-selector label { display:flex; gap:8px; align-items:center; font-size:14px; cursor:pointer; padding:6px 10px; border-radius:6px; transition:background 0.15s; }
.kp-view-selector label:hover { background:#DCEEFF; }
.kp-view-selector input[type="radio"] { accent-color:#0082FF; }

/* === Document viewer rotation + zoom === */
.viewer-toolbar {
  display: flex;
  gap: 6px;
  align-items: center;
  padding: 6px 10px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface-alt, #f7f8fa);
  flex-shrink: 0;
}
.viewer-toolbar .btn-ghost {
  font-size: 18px;
  padding: 4px 10px;
  line-height: 1;
}
.viewer-rotation-label {
  font-size: 11px;
  color: var(--color-text-muted, #5C6876);
  margin-left: 6px;
}
.viewer-toolbar-divider {
  width: 1px;
  height: 20px;
  background: var(--color-border);
  margin: 0 4px;
}
.viewer-zoom-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
  min-width: 40px;
  text-align: center;
  user-select: none;
}
.viewer-zoom-reset {
  font-size: 14px !important;
  opacity: 0.6;
  transition: opacity var(--transition);
}
.viewer-zoom-reset:hover {
  opacity: 1;
}

/* ─── Zoom controls (right panel) ───────────────────────── */
.zoom-controls {
  display: flex;
  align-items: center;
  gap: 4px;
}
.btn-zoom {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm, 6px);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  transition: background var(--transition);
  padding: 0;
  line-height: 1;
}
.btn-zoom:hover { background: var(--color-border); }
.zoom-level {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-muted);
  min-width: 34px;
  text-align: center;
  user-select: none;
}

/* ─── Table zoom wrapper ─────────────────────────────────── */
.table-zoom-wrapper {
  transform-origin: top left;
  transition: transform 0.15s ease;
  width: 100%;
}

.document-viewer {
  --rot: 0deg;
}
.document-viewer .viewer-image,
.document-viewer .pdf-page,
.document-viewer canvas {
  transform: rotate(var(--rot));
  transform-origin: center center;
  transition: transform 0.2s ease;
}
.document-viewer[data-rotation="90"] .viewer-image,
.document-viewer[data-rotation="90"] .pdf-page,
.document-viewer[data-rotation="90"] canvas,
.document-viewer[data-rotation="270"] .viewer-image,
.document-viewer[data-rotation="270"] .pdf-page,
.document-viewer[data-rotation="270"] canvas {
  max-width: none;
  max-height: 90vh;
}