/* ==========================================================================
   ЕДИНОЕ CSS-ЯДРО ИЭТР «[ АРХИВ-01 ]» (ARHIV01.RU // USB 128 GB)
   СТАНДАРТ: ГОСТ 2.601 / S1000D / MIL-SPEC / FIELD CODEX
   ПОЛНАЯ АВТОНОМНОСТЬ (OFFLINE): 0 ВНЕШНИХ CDN / 0 ЗАВИСИМОСТЕЙ
   ========================================================================== */

:root {
  /* СПЕКТР 1: ДЕНЬ // БУМАГА ИЭТР (Светлый архивный стандарт по умолчанию) */
  --bg-canvas: #F4F1EA;
  --bg-paper: #F4F1EA;
  --bg-panel: #FAF8F4;
  --bg-card: #FAF8F4;
  --bg-panel-alt: #F3EFE6;
  --bg-subtle: #EAE4D7;
  --bg-blueprint: #EDF2F6;
  --bg-cad: #EDF2F7;
  --bg-header: #E6E1D5;
  --bg-code: #E8E3D7;

  --ink-primary: #181C20;
  --text-main: #181C20;
  --ink-secondary: #4A525B;
  --text-muted: #525A63;
  --ink-muted: #767E87;

  --border-strong: #181C20;
  --border-hairline: #C8C1B2;
  --border-soft: #CFC8B8;
  --grid-dot: #C9C2B2;
  --grid-minor: rgba(24, 28, 32, 0.045);
  --grid-major: rgba(24, 28, 32, 0.08);

  /* Инженерно-тактические акценты */
  --accent-sage: #1F513A;
  --accent-olive: #234F3B;
  --accent-crimson: #B42323;
  --accent-cobalt: #184A78;
  --accent-navy: #18436E;
  --accent-ochre: #AD620C;

  /* Линии SVG КАД-чертежей */
  --svg-ink: #181C20;
  --svg-cobalt: #184A78;
  --svg-crimson: #B42323;
  --svg-sage: #1F513A;
  --svg-ochre: #AD620C;
  --svg-soil: #D7CFC0;
  --svg-grid: #CFD9E2;

  --cad-stroke: #18436E;
  --cad-dim: #234F3B;
  --cad-flow: #AD620C;
  --cad-err: #B42323;

  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, -apple-system, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'Cascadia Mono', 'Segoe UI Mono', Consolas, monospace;
}

/* СПЕКТР 2: 590нм ЯНТАРЬ (Защита от синего спектра / длительное чтение в укрытии) */
body[data-spectrum="amber"] {
  --bg-canvas: #F3E3C9;
  --bg-paper: #F9EFE0;
  --bg-panel: #FBF0DF;
  --bg-card: #FFF7EB;
  --bg-panel-alt: #EFE0C6;
  --bg-subtle: #EDD9BE;
  --bg-blueprint: #F5E6CC;
  --bg-cad: #F3E3CA;
  --bg-header: #E8D5B5;
  --bg-code: #E5D1B0;

  --ink-primary: #2B1700;
  --text-main: #331C04;
  --ink-secondary: #5C380E;
  --text-muted: #70481C;
  --ink-muted: #8A5A24;

  --border-strong: #3D2200;
  --border-hairline: #C9AC82;
  --border-soft: #D6BA94;
  --grid-dot: #C4A476;
  --grid-minor: rgba(60, 34, 5, 0.06);
  --grid-major: rgba(61, 34, 0, 0.10);

  --accent-sage: #5E3A00;
  --accent-olive: #6E3F0B;
  --accent-crimson: #A82000;
  --accent-cobalt: #7A3E00;
  --accent-navy: #8C4A08;
  --accent-ochre: #B85D00;

  --svg-ink: #2B1700;
  --svg-cobalt: #7A3E00;
  --svg-crimson: #A82000;
  --svg-sage: #4D2F00;
  --svg-ochre: #B85D00;
  --svg-soil: #E2C89F;
  --svg-grid: #DFC49A;

  --cad-stroke: #592E04;
  --cad-dim: #4D2F00;
  --cad-flow: #B85D00;
  --cad-err: #A82000;
}

/* СПЕКТР 3: 650нм НОЧЬ OLED (Сохранение родопсина + экономия 60% заряда) */
body[data-spectrum="red"] {
  --bg-canvas: #000000;
  --bg-paper: #000000;
  --bg-panel: #080202;
  --bg-card: #0A0202;
  --bg-panel-alt: #110404;
  --bg-subtle: #170404;
  --bg-blueprint: #060101;
  --bg-cad: #070101;
  --bg-header: #120303;
  --bg-code: #170505;

  --ink-primary: #CC1100;
  --text-main: #CC1100;
  --ink-secondary: #A61C1C;
  --text-muted: #8F180B;
  --ink-muted: #6E1111;

  --border-strong: #B81D1D;
  --border-hairline: #3D0A0A;
  --border-soft: #420A0A;
  --grid-dot: #2B0707;
  --grid-minor: rgba(204, 17, 0, 0.08);
  --grid-major: rgba(224, 40, 40, 0.12);

  --accent-sage: #CC2222;
  --accent-olive: #B01C1C;
  --accent-crimson: #FF3B3B;
  --accent-cobalt: #D42626;
  --accent-navy: #CC1100;
  --accent-ochre: #E04828;

  --svg-ink: #CC1100;
  --svg-cobalt: #C42020;
  --svg-crimson: #FF4444;
  --svg-sage: #B01C1C;
  --svg-ochre: #EB5533;
  --svg-soil: #1C0505;
  --svg-grid: #290707;

  --cad-stroke: #CC1100;
  --cad-dim: #7A0A00;
  --cad-flow: #E04828;
  --cad-err: #FF4444;
}

/* СПЕКТР 4: 530нм ПНВ (Люминофор ЭОП для работы под ПНВ) */
body[data-spectrum="nvg"] {
  --bg-canvas: #000000;
  --bg-paper: #000000;
  --bg-panel: #020905;
  --bg-card: #040D07;
  --bg-panel-alt: #05120A;
  --bg-subtle: #081B0F;
  --bg-blueprint: #020804;
  --bg-cad: #030B06;
  --bg-header: #041209;
  --bg-code: #071A0E;

  --ink-primary: #00E065;
  --text-main: #00E065;
  --ink-secondary: #009E47;
  --text-muted: #007D38;
  --ink-muted: #00662E;

  --border-strong: #00B853;
  --border-hairline: #093B1F;
  --border-soft: #0C4223;
  --grid-dot: #082E18;
  --grid-minor: rgba(0, 224, 101, 0.06);
  --grid-major: rgba(0, 224, 101, 0.12);

  --accent-sage: #00C458;
  --accent-olive: #009E47;
  --accent-crimson: #7FFF00;
  --accent-cobalt: #00E065;
  --accent-navy: #00B853;
  --accent-ochre: #38FF8E;

  --svg-ink: #00E065;
  --svg-cobalt: #00B853;
  --svg-crimson: #88FF22;
  --svg-sage: #009E47;
  --svg-ochre: #44FF99;
  --svg-soil: #04170B;
  --svg-grid: #072613;

  --cad-stroke: #00E065;
  --cad-dim: #00662E;
  --cad-flow: #38FF8E;
  --cad-err: #7FFF00;
}

* {
  box-sizing: border-box;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) var(--bg-panel-alt);
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--ink-primary);
  background-color: var(--bg-canvas);
  /* Двухуровневая инженерная сетка полевого журнала (20px и 100px) */
  background-image:
    radial-gradient(var(--grid-dot) 1.15px, transparent 1.15px),
    linear-gradient(to right, var(--grid-major) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-major) 1px, transparent 1px);
  background-size: 20px 20px, 100px 100px, 100px 100px;
  line-height: 1.45;
  overflow-x: hidden;
}

.font-mono-tech {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* Каркасные панели ИЭТР */
.ietm-panel {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-hairline);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.ietm-frame-strong {
  background-color: var(--bg-panel);
  border: 2px solid var(--border-strong);
}

/* Военный трафаретный шильд [ АРХИВ-01 ] */
.stencil-arhiv01 {
  font-family: var(--font-mono);
  font-weight: 900;
  letter-spacing: 0.08em;
  background-color: var(--ink-primary);
  color: var(--bg-panel);
  padding: 4px 10px;
  border: 2px solid var(--ink-primary);
  box-shadow: inset 0 0 0 1.5px var(--bg-panel);
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  user-select: none;
}

/* Угловые реперные засечки КАД-чертежа */
.cad-viewport {
  position: relative;
  background-color: var(--bg-blueprint);
  border: 1.5px solid var(--border-strong);
  background-image:
    linear-gradient(to right, var(--svg-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--svg-grid) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Инженерная таблица ГОСТ */
.gost-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.gost-table th, .gost-table td {
  border: 1px solid var(--border-hairline);
  padding: 6px 9px;
  text-align: left;
  vertical-align: top;
}
.gost-table th {
  background-color: var(--bg-header);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--ink-primary);
}
.gost-table tr:nth-child(even) td {
  background-color: var(--bg-panel-alt);
}

/* Корешки разделов */
.spine-sage { border-left: 4px solid var(--accent-sage) !important; }
.spine-crimson { border-left: 4px solid var(--accent-crimson) !important; }
.spine-cobalt { border-left: 4px solid var(--accent-cobalt) !important; }
.spine-ochre { border-left: 4px solid var(--accent-ochre) !important; }

/* Перфорированный разделитель полевого блокнота */
.perforated-divider {
  border-bottom: 1px dashed var(--border-hairline);
}

/* Кнопки-закладки КАД слоев */
.layer-tab {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  background-color: var(--bg-panel-alt);
  color: var(--ink-secondary);
  cursor: pointer;
  transition: all 0.12s ease;
}
.layer-tab.active {
  background-color: var(--accent-cobalt);
  color: #FFFFFF;
  border-color: var(--accent-cobalt);
}
.layer-tab.active-danger {
  background-color: var(--accent-crimson);
  color: #FFFFFF;
  border-color: var(--accent-crimson);
}

/* Панель «Первые 30 секунд» (Triage Strip) */
.triage-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}
.triage-btn {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-panel);
  border: 1px solid var(--border-hairline);
  padding: 8px 12px;
  text-align: left;
  cursor: pointer;
  color: var(--ink-primary);
  text-decoration: none;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.triage-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 5px rgba(0,0,0,0.08);
}

/* Спектральные переключатели */
.spec-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 8px;
  border: 1px solid var(--border-hairline);
  background: var(--bg-panel-alt);
  color: var(--ink-secondary);
  cursor: pointer;
  transition: all 0.1s ease;
}
.spec-btn:hover {
  background: var(--bg-subtle);
}
.spec-btn.active {
  background: var(--border-strong);
  color: var(--bg-panel);
  border-color: var(--border-strong);
}

/* Военный паспортный штамп (ГОСТ РВ / MIL-SPEC) */
.mil-passport-stamp {
  border: 2px solid var(--border-strong);
  background-color: var(--bg-panel);
  margin-bottom: 16px;
  font-size: 12px;
}
.mps-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 12px;
  background-color: var(--bg-header);
  border-bottom: 1.5px solid var(--border-strong);
  font-family: var(--font-mono);
  font-weight: 800;
  letter-spacing: 0.04em;
}
.mps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background-color: var(--border-hairline);
}
.mps-cell {
  background-color: var(--bg-panel);
  padding: 6px 10px;
}
.mps-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-muted);
  text-transform: uppercase;
}
.mps-val {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-primary);
}
.mps-val.mps-danger {
  color: var(--accent-crimson);
}
.mps-val.mps-low {
  color: var(--accent-sage);
}

/* Интерактивные 3-слойные SVG на чистом CSS :has(:checked) */
.cad-interactive-container {
  border: 1.5px solid var(--border-strong);
  background: var(--bg-blueprint);
  margin-bottom: 16px;
}
.cad-layer-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 6px;
  background: var(--bg-panel-alt);
  border-bottom: 1.5px solid var(--border-strong);
  font-family: var(--font-mono);
  font-size: 11px;
}
.cad-layer-controls label {
  cursor: pointer;
  padding: 5px 10px;
  border: 1px solid var(--border-strong);
  background: var(--bg-panel);
  font-weight: 700;
  user-select: none;
  transition: all 0.1s ease;
}
.cad-layer-controls input[type="radio"] {
  display: none;
}
.cad-interactive-container:has(input[value="geom"]:checked) .cad-layer-controls label[data-layer="geom"],
.cad-interactive-container:has(input[value="1"]:checked) .cad-layer-controls label[data-layer="1"] {
  background: var(--accent-cobalt);
  color: #FFFFFF;
}
.cad-interactive-container:has(input[value="physics"]:checked) .cad-layer-controls label[data-layer="physics"],
.cad-interactive-container:has(input[value="2"]:checked) .cad-layer-controls label[data-layer="2"] {
  background: var(--accent-cobalt);
  color: #FFFFFF;
}
.cad-interactive-container:has(input[value="errors"]:checked) .cad-layer-controls label[data-layer="errors"],
.cad-interactive-container:has(input[value="3"]:checked) .cad-layer-controls label[data-layer="3"] {
  background: var(--accent-crimson);
  color: #FFFFFF;
}

.cad-svg-viewport {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.cad-svg-viewport svg {
  display: block;
  width: 100%;
  height: auto;
}

/* Управление слоями SVG */
.cad-interactive-container .layer-geom,
.cad-interactive-container .layer-physics,
.cad-interactive-container .layer-errors {
  transition: opacity 0.15s ease;
}

/* По умолчанию (слой 1: геометрия) */
.cad-interactive-container .layer-physics { opacity: 0; pointer-events: none; }
.cad-interactive-container .layer-errors { opacity: 0; pointer-events: none; }
.cad-interactive-container .layer-geom { opacity: 1; }

/* При выборе слоя 2: физика/потоки/анатомия */
.cad-interactive-container:has(input[value="physics"]:checked) .layer-geom,
.cad-interactive-container:has(input[value="2"]:checked) .layer-geom { opacity: 0.25; }
.cad-interactive-container:has(input[value="physics"]:checked) .layer-physics,
.cad-interactive-container:has(input[value="2"]:checked) .layer-physics { opacity: 1; pointer-events: auto; }
.cad-interactive-container:has(input[value="physics"]:checked) .layer-errors,
.cad-interactive-container:has(input[value="2"]:checked) .layer-errors { opacity: 0; pointer-events: none; }

/* При выборе слоя 3: критические ошибки */
.cad-interactive-container:has(input[value="errors"]:checked) .layer-geom,
.cad-interactive-container:has(input[value="3"]:checked) .layer-geom { opacity: 0.15; }
.cad-interactive-container:has(input[value="errors"]:checked) .layer-physics,
.cad-interactive-container:has(input[value="3"]:checked) .layer-physics { opacity: 0.15; }
.cad-interactive-container:has(input[value="errors"]:checked) .layer-errors,
.cad-interactive-container:has(input[value="3"]:checked) .layer-errors { opacity: 1; pointer-events: auto; }

/* Категорический запрет / Предупреждения */
.cad-warning-banner {
  background-color: var(--bg-panel);
  border: 2px solid var(--accent-crimson);
  border-left-width: 8px;
  padding: 10px 14px;
  margin: 14px 0;
  font-size: 13px;
  color: var(--ink-primary);
}
.cad-warning-banner b {
  color: var(--accent-crimson);
  font-family: var(--font-mono);
}

/* Печатный стандарт водостойких карточек А6 Tyvek (105x148 мм) */
@page {
  size: 105mm 148mm;
  margin: 4mm;
}

/* ==========================================================================
   ИСПРАВЛЕННЫЙ ПЕЧАТНЫЙ СТАНДАРТ КАРТОЧЕК А6 TYVEK (@media print)
   ========================================================================== */
@media print {
  /* Жестко задаем размер бумаги А6 и минимальные поля */
  @page {
    size: 105mm 148mm;
    margin: 4mm;
  }

  body {
    background: #FFFFFF !important;
    color: #000000 !important;
    background-image: none !important;
    font-size: 7.5pt !important; /* Уменьшаем базовый шрифт для компактности А6 */
    line-height: 1.2 !important;
    padding: 0 !important;
    height: auto !important;
    min-height: auto !important;
    overflow: visible !important;
  }

  /* Компактные таблицы: фиксированная ширина, перенос слов, без обрезки справа */
  table {
    width: 100% !important;
    table-layout: fixed !important;
    word-wrap: break-word !important;
    overflow-wrap: anywhere !important;
    font-size: 6.5pt !important;
    border-collapse: collapse !important;
  }
  th, td {
    padding: 2px 3px !important;
    font-size: 6.5pt !important;
    line-height: 1.2 !important;
    vertical-align: top !important;
    white-space: normal !important;
  }

  /* Раскрываем все 3 слоя SVG-вкладок при печати: скрываем переключатели,
     показываем все слои и их описания друг под другом */
  input.scheme-tab-radio {
    display: none !important;
  }
  .scheme-tabs-nav {
    display: none !important;
  }
  .scheme-tabs-wrap svg .layer-dims,
  .scheme-tabs-wrap svg .layer-flows,
  .scheme-tabs-wrap svg .layer-danger {
    display: inline !important;
  }
  .scheme-tabs-wrap .desc-layer-1,
  .scheme-tabs-wrap .desc-layer-2,
  .scheme-tabs-wrap .desc-layer-3 {
    display: block !important;
    page-break-inside: avoid;
    break-inside: avoid;
    margin-bottom: 3mm !important;
  }


  /* Скрываем элементы интерфейса, навигацию и консоль ИИ при печати */
  .ietm-header, 
  .triage-strip, 
  .nav-panel, 
  .ai-panel, 
  .cad-toolbar, 
  .header-actions,
  .search-input,
  .gear-filters,
  .no-print,
  .topbar,
  .sidebar,
  .search-container,
  .static-nav-bar,
  .spec-btn,
  .scheme-tabs-nav,
  .btn-open-art,
  .mclose,
  #ai-drawer,
  .btn-ai-toggle {
    display: none !important;
  }

  /* Разворачиваем рабочую область на всю ширину листа */
  .ietm-workspace,
  .main-pane,
  .content-scroll,
  .static-page-wrap,
  .static-card,
  .mbox {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
    background: #FFFFFF !important;
  }

  .panel-box {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  .formular-body {
    padding: 0 !important;
  }

  /* Принудительный разрыв страниц для создания многостраничной карточки А6 */
  .gost-stamp,
  .mil-passport-stamp {
    page-break-after: always;
    break-after: page;
    margin-bottom: 4mm !important;
    border: 1px solid #000000 !important;
  }

  .mps-header, .gost-table th {
    background: #EEEEEE !important;
    color: #000000 !important;
  }
  .mps-cell, .gost-table td {
    background: #FFFFFF !important;
    color: #000000 !important;
  }

  .cad-module,
  .scheme-tabs-wrap,
  .svg-card,
  .svg-scheme-wrap {
    page-break-inside: avoid;
    break-inside: avoid;
    margin-bottom: 4mm !important;
  }

  /* Масштабируем SVG-схемы, чтобы они гарантированно влезали в ширину А6 (~97 мм) */
  .cad-viewport {
    min-height: 90mm !important;
    max-height: 100mm !important;
    padding: 2px !important;
    background: #FFFFFF !important;
    border: 1px solid #000000 !important;
  }

  .cad-viewport svg,
  .svg-card svg,
  .svg-scheme-wrap svg,
  .scheme-tabs-wrap svg {
    width: 100% !important;
    max-width: 100% !important;
    max-height: 90mm !important;
    height: auto !important;
    object-fit: contain;
  }

  /* Компактные таблицы и блоки предупреждений для печати */
  .spec-table th, .spec-table td,
  .guide-table th, .guide-table td,
  .explication-table th, .explication-table td {
    padding: 2px 4px !important;
    font-size: 7pt !important;
    line-height: 1.2 !important;
  }

  .danger-banner, .sub-box, .guide-pain {
    page-break-inside: avoid;
    break-inside: avoid;
    padding: 6px !important;
    margin-bottom: 4mm !important;
    border: 1px solid #000000 !important;
    background: #FFFFFF !important;
    color: #000000 !important;
  }

  .callouts-bar {
    display: block !important;
  }

  .callout-item {
    font-size: 7.5pt !important;
    padding: 3px 4px !important;
    margin-bottom: 2px !important;
  }

  .stencil-arhiv01 {
    background: #000000 !important;
    color: #FFFFFF !important;
    box-shadow: none !important;
  }
}

/* === УТИЛИТАРНЫЕ КЛАССЫ ДЛЯ АВТОНОМНОЙ РАБОТЫ БЕЗ CDN ТЕЙЛВИНДА === */
*, ::before, ::after { box-sizing: border-box; }
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline-flex { display: inline-flex; }
.flex { display: flex; }
.grid { display: grid; }
.flex-1 { flex: 1 1 0%; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-stretch { align-items: stretch; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.sticky { position: sticky; }
.fixed { position: fixed; }
.relative { position: relative; }
.absolute { position: absolute; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-0 { top: 0; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }
.w-full { width: 100%; }
.w-2 { width: 0.5rem; }
.w-3 { width: 0.75rem; }
.h-auto { height: auto; }
.h-2 { height: 0.5rem; }
.h-3 { height: 0.75rem; }
.min-h-screen { min-height: 100vh; }
.max-w-lg { max-width: 32rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-\[1920px\] { max-width: 1920px; }
.max-h-\[380px\] { max-height: 380px; }
.max-h-\[430px\] { max-height: 430px; }
.max-h-\[90vh\] { max-height: 90vh; }
.overflow-y-auto { overflow-y: auto; }
.overflow-hidden { overflow: hidden; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.p-0\.5 { padding: 0.125rem; }
.p-1 { padding: 0.25rem; }
.p-1\.5 { padding: 0.375rem; }
.p-2 { padding: 0.5rem; }
.p-2\.5 { padding: 0.625rem; }
.p-3 { padding: 0.75rem; }
.p-3\.5 { padding: 0.875rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-1\.5 { padding-left: 0.375rem; padding-right: 0.375rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-2\.5 { padding-left: 0.625rem; padding-right: 0.625rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-0\.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.pt-1 { padding-top: 0.25rem; }
.pb-1 { padding-bottom: 0.25rem; }
.pb-1\.5 { padding-bottom: 0.375rem; }
.pb-2 { padding-bottom: 0.5rem; }
.pb-3 { padding-bottom: 0.75rem; }
.pr-2 { padding-right: 0.5rem; }
.pl-4 { padding-left: 1rem; }
.mt-0\.5 { margin-top: 0.125rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-1\.5 { margin-bottom: 0.375rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-2\.5 { margin-bottom: 0.625rem; }
.mb-3 { margin-bottom: 0.75rem; }
.ml-1 { margin-left: 0.25rem; }
.space-y-0\.5 > * + * { margin-top: 0.125rem; }
.space-y-1 > * + * { margin-top: 0.25rem; }
.space-y-1\.5 > * + * { margin-top: 0.375rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-2\.5 > * + * { margin-top: 0.625rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.gap-1 { gap: 0.25rem; }
.gap-1\.5 { gap: 0.375rem; }
.gap-2 { gap: 0.5rem; }
.gap-2\.5 { gap: 0.625rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:inline { display: inline; }
  .md\:text-base { font-size: 1rem; }
  .md\:text-lg { font-size: 1.125rem; }
}
@media (min-width: 1024px) {
  .lg\:grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .lg\:col-span-3 { grid-column: span 3 / span 3; }
  .lg\:col-span-6 { grid-column: span 6 / span 6; }
}
.text-\[9px\] { font-size: 9px; }
.text-\[10px\] { font-size: 10px; }
.text-\[11px\] { font-size: 11px; }
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }
.uppercase { text-transform: uppercase; }
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-white { color: #ffffff; }
.opacity-40 { opacity: 0.4; }
.opacity-60 { opacity: 0.6; }
.opacity-70 { opacity: 0.7; }
.opacity-80 { opacity: 0.8; }
.opacity-85 { opacity: 0.85; }
.opacity-90 { opacity: 0.9; }
.opacity-95 { opacity: 0.95; }
.rounded-sm { border-radius: 2px; }
.rounded-full { border-radius: 9999px; }
.border-b { border-bottom-width: 1px; }
.border-b-2 { border-bottom-width: 2px; }
.border-t-0 { border-top-width: 0px; }
.border-x-0 { border-left-width: 0px; border-right-width: 0px; }
.border-black { border-color: #000000; }
.bg-black { background-color: #000000; }
.bg-black\/60 { background-color: rgba(0, 0, 0, 0.6); }
.cursor-pointer { cursor: pointer; }
.transition { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.hover\:opacity-80:hover { opacity: 0.8; }
.hover\:opacity-85:hover { opacity: 0.85; }
.hover\:opacity-90:hover { opacity: 0.9; }
.hover\:opacity-95:hover { opacity: 0.95; }
.list-disc { list-style-type: disc; }
.animate-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .5; } }


/* Псевдонимы спектральных режимов для data-theme и :root */
:root[data-theme="amber"], [data-spectrum="amber"], [data-theme="amber"] {
  --bg-paper: #F9EFE0;
  --bg-card: #FFF7EB;
  --bg-subtle: #EDD9BE;
  --bg-cad: #F3E3CA;
  --text-main: #331C04;
  --text-muted: #70481C;
  --border-strong: #4A2A08;
  --border-soft: #D6BA94;
  --bg: #F9EFE0;
  --card: #FFF7EB;
  --text: #331C04;
  --border: #D6BA94;
}
:root[data-theme="red"], [data-spectrum="red"], [data-theme="red"] {
  --bg-paper: #000000;
  --bg-card: #0A0202;
  --bg-subtle: #170404;
  --bg-cad: #070101;
  --text-main: #CC1100;
  --text-muted: #880B00;
  --border-strong: #CC1100;
  --border-soft: #550700;
  --bg: #000000;
  --card: #0A0202;
  --text: #CC1100;
  --border: #550700;
}
:root[data-theme="nvg"], [data-spectrum="nvg"], [data-theme="nvg"] {
  --bg-paper: #000602;
  --bg-card: #010F05;
  --bg-subtle: #031A0A;
  --bg-cad: #000A03;
  --text-main: #10E848;
  --text-muted: #0A8F2D;
  --border-strong: #10E848;
  --border-soft: #06541A;
  --bg: #000602;
  --card: #010F05;
  --text: #10E848;
  --border: #06541A;
}

/* ГЛОБАЛЬНЫЙ СКРОЛЛИНГ ДЛЯ ВСЕХ СТРАНИЦ ИЭТР (INDEX.HTML И GUIDES_VIEW/*.HTML) */
html {
  scroll-behavior: smooth;
  height: auto !important;
  min-height: 100vh;
}
body {
  height: auto !important;
  min-height: 100vh !important;
  overflow-x: hidden !important;
  overflow-y: auto !important;
}

/* ========================================================================== */
/* ИНТЕРАКТИВНЫЕ ВКЛАДКИ ЧЕРТЕЖЕЙ (CSS RADIO TABS :has() И ~ COMBINATOR)      */
/* ========================================================================== */
.scheme-tabs-wrap {
  margin: 20px 0 24px 0;
  border: 1.5px solid var(--border-dark, #b8ab94);
  border-radius: 8px;
  background: var(--card, #faf7f0);
  box-shadow: 0 1px 3px rgba(44,41,37,0.08);
  overflow: hidden;
}

.scheme-tabs-nav {
  display: flex;
  background: var(--bg-subtle, #eae3d2);
  border-bottom: 1.5px solid var(--border, #d5cbb8);
  overflow-x: auto;
  scrollbar-width: none;
}
.scheme-tabs-nav::-webkit-scrollbar { display: none; }

.scheme-tab-radio {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.scheme-tab-btn {
  flex: 1;
  min-width: 170px;
  text-align: center;
  padding: 10px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--dim, #6e675c);
  cursor: pointer;
  border-right: 1px solid var(--border, #d5cbb8);
  transition: all 0.2s ease;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.scheme-tab-btn:last-child {
  border-right: none;
}
.scheme-tab-btn:hover {
  background: rgba(0,0,0,0.03);
  color: var(--text, #2c2925);
}

/* Активное состояние кнопки через :has() и соседний селектор ~ */
.scheme-tabs-wrap:has(.tab-r-1:checked) .tab-b-1,
.scheme-tabs-wrap .tab-r-1:checked ~ .scheme-tabs-nav .tab-b-1 {
  background: var(--card, #faf7f0);
  color: var(--accent, #4a5d3f);
  font-weight: 800;
  border-bottom: 2.5px solid var(--accent, #4a5d3f);
}
.scheme-tabs-wrap:has(.tab-r-2:checked) .tab-b-2,
.scheme-tabs-wrap .tab-r-2:checked ~ .scheme-tabs-nav .tab-b-2 {
  background: var(--card, #faf7f0);
  color: #2563eb;
  font-weight: 800;
  border-bottom: 2.5px solid #2563eb;
}
.scheme-tabs-wrap:has(.tab-r-3:checked) .tab-b-3,
.scheme-tabs-wrap .tab-r-3:checked ~ .scheme-tabs-nav .tab-b-3 {
  background: var(--card, #faf7f0);
  color: #dc2626;
  font-weight: 800;
  border-bottom: 2.5px solid #dc2626;
}

/* Переключение слоев внутри SVG */
.scheme-tabs-wrap:has(.tab-r-1:checked) svg .layer-dims,
.scheme-tabs-wrap .tab-r-1:checked ~ .scheme-tab-viewport svg .layer-dims { display: inline !important; }
.scheme-tabs-wrap:has(.tab-r-1:checked) svg .layer-flows,
.scheme-tabs-wrap .tab-r-1:checked ~ .scheme-tab-viewport svg .layer-flows { display: none !important; }
.scheme-tabs-wrap:has(.tab-r-1:checked) svg .layer-danger,
.scheme-tabs-wrap .tab-r-1:checked ~ .scheme-tab-viewport svg .layer-danger { display: none !important; }
.scheme-tabs-wrap:has(.tab-r-1:checked) .desc-layer-1,
.scheme-tabs-wrap .tab-r-1:checked ~ .desc-layer-1 { display: block !important; }
.scheme-tabs-wrap:has(.tab-r-1:checked) .desc-layer-2,
.scheme-tabs-wrap .tab-r-1:checked ~ .desc-layer-2,
.scheme-tabs-wrap:has(.tab-r-1:checked) .desc-layer-3,
.scheme-tabs-wrap .tab-r-1:checked ~ .desc-layer-3 { display: none !important; }

.scheme-tabs-wrap:has(.tab-r-2:checked) svg .layer-dims,
.scheme-tabs-wrap .tab-r-2:checked ~ .scheme-tab-viewport svg .layer-dims { display: none !important; }
.scheme-tabs-wrap:has(.tab-r-2:checked) svg .layer-flows,
.scheme-tabs-wrap .tab-r-2:checked ~ .scheme-tab-viewport svg .layer-flows { display: inline !important; }
.scheme-tabs-wrap:has(.tab-r-2:checked) svg .layer-danger,
.scheme-tabs-wrap .tab-r-2:checked ~ .scheme-tab-viewport svg .layer-danger { display: none !important; }
.scheme-tabs-wrap:has(.tab-r-2:checked) .desc-layer-2,
.scheme-tabs-wrap .tab-r-2:checked ~ .desc-layer-2 { display: block !important; }
.scheme-tabs-wrap:has(.tab-r-2:checked) .desc-layer-1,
.scheme-tabs-wrap .tab-r-2:checked ~ .desc-layer-1,
.scheme-tabs-wrap:has(.tab-r-2:checked) .desc-layer-3,
.scheme-tabs-wrap .tab-r-2:checked ~ .desc-layer-3 { display: none !important; }

.scheme-tabs-wrap:has(.tab-r-3:checked) svg .layer-dims,
.scheme-tabs-wrap .tab-r-3:checked ~ .scheme-tab-viewport svg .layer-dims { display: none !important; }
.scheme-tabs-wrap:has(.tab-r-3:checked) svg .layer-flows,
.scheme-tabs-wrap .tab-r-3:checked ~ .scheme-tab-viewport svg .layer-flows { display: none !important; }
.scheme-tabs-wrap:has(.tab-r-3:checked) svg .layer-danger,
.scheme-tabs-wrap .tab-r-3:checked ~ .scheme-tab-viewport svg .layer-danger { display: inline !important; }
.scheme-tabs-wrap:has(.tab-r-3:checked) .desc-layer-3,
.scheme-tabs-wrap .tab-r-3:checked ~ .desc-layer-3 { display: block !important; }
.scheme-tabs-wrap:has(.tab-r-3:checked) .desc-layer-1,
.scheme-tabs-wrap .tab-r-3:checked ~ .desc-layer-1,
.scheme-tabs-wrap:has(.tab-r-3:checked) .desc-layer-2,
.scheme-tabs-wrap .tab-r-3:checked ~ .desc-layer-2 { display: none !important; }

.scheme-tab-viewport {
  padding: 16px;
  background: var(--bg, #f4efe6);
}

.scheme-layer-desc {
  padding: 10px 16px;
  background: var(--bg-subtle, #eae3d2);
  border-top: 1px solid var(--border, #d5cbb8);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ==========================================================================
   ИЭТР-ГРАВЮРА: адаптивный спектральный фильтр для книжных гравюр и чертежей
   (1941–1989). День/Янтарь = светлая бумага -> multiply (белый фон прозрачен).
   Ночь OLED (650нм) и ПНВ (530нм) = чёрный фон -> инверсия + колоризация.
   ========================================================================== */
.book-illustration-card {
  background: var(--bg-paper, #f4efe6);
  border: 1px solid var(--border-strong, #b8ab94);
  padding: 10px;
  margin: 12px 0;
  display: inline-block;
  max-width: 100%;
}
.book-illustration-card img {
  display: block;
  max-width: 100%;
  height: auto;
  filter: grayscale(100%) contrast(165%) brightness(105%);
  mix-blend-mode: multiply;
}
/* НОЧЬ 650нм: фон чёрный, линии рисунка — рубиново-красные */
body[data-spectrum="red"] .book-illustration-card img {
  mix-blend-mode: screen;
  filter: grayscale(100%) contrast(180%) invert(100%) sepia(100%) saturate(600%) hue-rotate(345deg) brightness(85%);
}
/* ПНВ 530нм: фон чёрный, линии — зелёный люминофор */
body[data-spectrum="nvg"] .book-illustration-card img {
  mix-blend-mode: screen;
  filter: grayscale(100%) contrast(180%) invert(100%) sepia(100%) saturate(500%) hue-rotate(85deg) brightness(90%);
}
/* Атлас-галерея */
.book-figures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  padding: 12px;
}
.book-figures-grid figure {
  margin: 0;
  border: 1px solid var(--border-hairline, #d5cbb8);
  border-radius: 4px;
  padding: 6px;
  background: var(--bg-paper, #f4efe6);
  cursor: zoom-in;
}
.book-figures-grid img {
  display: block;
  width: 100%;
  height: auto;
  filter: grayscale(100%) contrast(165%) brightness(105%);
  mix-blend-mode: multiply;
}
body[data-spectrum="red"] .book-figures-grid img {
  mix-blend-mode: screen;
  filter: grayscale(100%) contrast(180%) invert(100%) sepia(100%) saturate(600%) hue-rotate(345deg) brightness(85%);
}
body[data-spectrum="nvg"] .book-figures-grid img {
  mix-blend-mode: screen;
  filter: grayscale(100%) contrast(180%) invert(100%) sepia(100%) saturate(500%) hue-rotate(85deg) brightness(90%);
}
.book-figures-grid figcaption {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--text-muted, #6e675c);
  margin-top: 5px;
  text-align: center;
}