/* ========================================================
   TN-BASE v1.2 (31 мая 2026)
   Глобальная система стилей для всех страниц транспортнаянаука.рф

   v1.1 → v1.2:
   - .tn-footer-org приведён к стилю .tn-footer-niit-full:
     приглушённый (11px / 500 / muted / opacity 0.85) — РУТ (МИИТ)
     больше не выделяется визуально над описанием института.
     Изменение чисто стилистическое, имена классов не меняются.

   v1.0 → v1.1:
   - Все стилизующие селекторы префиксованы `body #tn-app` —
     надёжная защита от перебивания Тильдой (раньше префикс был
     только у части селекторов, остальные могла перекрыть Тильда).
   - Карточка дополнена внутренней структурой:
     .tn-card-emblem (+ модификатор --lg), .tn-card-eyebrow,
     .tn-card-title, .tn-card-desc, .tn-card-pill, .tn-card-links.
   - Состояния страницы: .tn-state, .tn-state.show + анимация.
   - Кнопка темы: .tn-theme-toggle (light/dark/auto, иконка в JS).
   - Слоты шапки: .tn-header-actions.
   - НИИТ-бейдж: переделан на многослойный градиент с бликом и
     серебряной полосой (как brand-бейдж). Класс .tn-niit;
     .tn-niit-badge оставлен как алиас для обратной совместимости.
   - Футер: 4 строки канона — .tn-footer-brand (©+РУТ+НИИТ),
     .tn-footer-niit-full (полное название), .tn-footer-operator,
     .tn-footer-developer.
   - Бейдж бренда: .tn-badge (с подзаголовочными марками) +
     .tn-badge-sm (компактный для шапки, с разноцветными словами).
   - Расширены формы: .tn-input-wrap (для кнопки-глаз),
     .tn-input-toggle, .tn-helper (с состояниями error/success),
     .tn-pwd-strength, .tn-pwd-rules, .tn-error-message.
   - Добавлено overflow:hidden + isolation:isolate на карточках —
     лечит баг прямых углов над .tn-card-emblem в тёмной теме.
   - Кнопки: .tn-btn-primary/.tn-btn-outline работают как
     самостоятельные классы (без обязательной комбинации .tn-btn).
   - User-select: none по умолчанию для UI, text для input/textarea.
   - Авто-тема через prefers-color-scheme для пользователей без
     явного выбора темы (html:not(.tn-light)).

   ИСПОЛЬЗОВАНИЕ:
   Подключается через Site-wide HEAD-блок Тильды один раз.
   Все страницы оборачивают разметку в <div id="tn-app">…</div>.
   Все классы начинаются с tn-.
   ======================================================== */

/* ============ DESIGN TOKENS ============ */
:root {
  /* === Бренд === */
  --tn-primary: #055397;
  --tn-primary-dark: #033258;
  --tn-primary-light: #5BA3D0;
  --tn-primary-soft: #E8F0F7;
  --tn-mintrans-deep: #001E47;
  --tn-mintrans-mid: #003366;
  --tn-mintrans-light: #1A5A8A;
  --tn-silver: #D8D8D8;
  --tn-silver-soft: #B8C8DA;
  --tn-silver-glow: #FFFFFF;

  /* === Фон / поверхности === */
  --tn-bg: #F7FAFC;
  --tn-bg-grad-start: #FAFCFE;
  --tn-bg-grad-end: #EEF3F8;
  --tn-bg-soft: #F1F5F9;
  --tn-surface: #FFFFFF;
  --tn-surface-hover: #F1F5F9;
  --tn-surface-inset: #F1F5F9;
  --tn-border: #E2E8F0;
  --tn-border-soft: #EDF2F7;
  --tn-border-strong: #CBD5E1;
  --tn-overlay: rgba(15, 23, 42, 0.6);

  /* === Текст === */
  --tn-text: #0F172A;
  --tn-text-muted: #64748B;
  --tn-text-light: #94A3B8;
  --tn-text-subtle: #94A3B8;
  --tn-text-inverse: #FFFFFF;

  /* === Семантика === */
  --tn-success: #047857;
  --tn-success-soft: #ECFDF5;
  --tn-warning: #B45309;
  --tn-warning-soft: #FFFBEB;
  --tn-danger: #DC2626;
  --tn-danger-soft: #FEF2F2;
  --tn-info: #0284C7;
  --tn-info-soft: #F0F9FF;

  /* Алиасы для совместимости с v1.0 */
  --tn-error: var(--tn-danger);
  --tn-error-bg: var(--tn-danger-soft);
  --tn-success-bg: var(--tn-success-soft);
  --tn-warning-bg: var(--tn-warning-soft);

  /* === Типографика === */
  --tn-font: 'Inter', 'Mulish', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --tn-font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, monospace;

  --tn-text-xs:   11px;
  --tn-text-sm:   13px;
  --tn-text-base: 14px;
  --tn-text-md:   15px;
  --tn-text-lg:   17px;
  --tn-text-xl:   22px;
  --tn-text-2xl:  28px;
  --tn-text-3xl:  34px;

  /* === Радиусы === */
  --tn-radius-xs:   6px;
  --tn-radius-sm:   10px;
  --tn-radius:      14px;
  --tn-radius-lg:   18px;
  --tn-radius-xl:   22px;
  --tn-radius-pill: 999px;

  /* === Тени === */
  --tn-shadow-xs:    0 1px 2px rgba(0, 0, 0, 0.04);
  --tn-shadow-sm:    0 2px 8px rgba(0, 0, 0, 0.04);
  --tn-shadow:       0 4px 16px rgba(0, 0, 0, 0.06);
  --tn-shadow-md:    0 10px 28px -8px rgba(0, 20, 60, 0.12), 0 4px 12px -4px rgba(0, 20, 60, 0.06);
  --tn-shadow-lg:    0 20px 50px -16px rgba(0, 20, 60, 0.12), 0 8px 20px -8px rgba(0, 20, 60, 0.06);
  --tn-shadow-xl:    0 30px 70px -20px rgba(0, 20, 60, 0.18), 0 12px 28px -12px rgba(0, 20, 60, 0.10);
  --tn-shadow-card:  0 8px 28px rgba(15, 30, 60, 0.10), 0 2px 6px rgba(15, 30, 60, 0.05);
  --tn-shadow-badge: 0 14px 38px rgba(0, 20, 60, 0.22), 0 4px 12px rgba(0, 20, 60, 0.14);
  --tn-shadow-niit:  0 4px 10px rgba(0, 20, 60, 0.20), inset 0 1px 0 rgba(255,255,255,0.30), inset 0 -1px 0 rgba(0,0,0,0.20);
  --tn-shadow-emblem:0 12px 30px rgba(0, 20, 60, 0.24), 0 4px 10px rgba(0, 20, 60, 0.14), inset 0 1px 0 rgba(255,255,255,0.30), inset 0 -1px 0 rgba(0,0,0,0.20);
  --tn-shadow-btn:       0 8px 20px rgba(5, 83, 151, 0.28);
  --tn-shadow-btn-hover: 0 14px 28px rgba(5, 83, 151, 0.38);

  /* === Отступы === */
  --tn-gap-xs:  4px;
  --tn-gap-sm:  8px;
  --tn-gap:     12px;
  --tn-gap-md:  16px;
  --tn-gap-lg:  24px;
  --tn-gap-xl:  36px;
  --tn-gap-2xl: 56px;

  /* === Layout === */
  --tn-container-max: 1200px;
  --tn-header-h: 64px;
  --tn-footer-pad: 32px;

  /* === Анимация === */
  --tn-transition: 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  --tn-transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

html.tn-dark {
  --tn-primary: #5BA3D0;
  --tn-primary-dark: #055397;
  --tn-primary-light: #7BBDE3;
  --tn-primary-soft: rgba(91, 163, 208, 0.12);

  --tn-bg: #0B1120;
  --tn-bg-grad-start: #0B1120;
  --tn-bg-grad-end: #0F1A33;
  --tn-bg-soft: #151D2E;
  --tn-surface: #151D2E;
  --tn-surface-hover: #1E293B;
  --tn-surface-inset: #1E283D;
  --tn-border: #1E293B;
  --tn-border-soft: #2C3A52;
  --tn-border-strong: #334155;
  --tn-overlay: rgba(0, 0, 0, 0.7);

  --tn-text: #F8FAFC;
  --tn-text-muted: #94A3B8;
  --tn-text-light: #64748B;
  --tn-text-subtle: #64748B;
  --tn-text-inverse: #0F172A;

  --tn-success: #34D399;
  --tn-success-soft: rgba(52, 211, 153, 0.10);
  --tn-warning: #FBBF24;
  --tn-warning-soft: rgba(251, 191, 36, 0.10);
  --tn-danger: #F87171;
  --tn-danger-soft: rgba(248, 113, 113, 0.10);
  --tn-info: #38BDF8;
  --tn-info-soft: rgba(56, 189, 248, 0.10);

  --tn-error: var(--tn-danger);
  --tn-error-bg: #2A1010;
  --tn-success-bg: #0F2418;
  --tn-warning-bg: #2A1F08;

  --tn-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.30);
  --tn-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.32);
  --tn-shadow:    0 4px 16px rgba(0, 0, 0, 0.36);
  --tn-shadow-md: 0 10px 28px rgba(0, 0, 0, 0.44);
  --tn-shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.55);
  --tn-shadow-xl: 0 30px 70px rgba(0, 0, 0, 0.65);
  --tn-shadow-card: 0 8px 28px rgba(0, 0, 0, 0.50), 0 2px 6px rgba(0, 0, 0, 0.30);
  --tn-shadow-badge: 0 16px 44px rgba(0, 0, 0, 0.55), 0 4px 12px rgba(0, 0, 0, 0.40);
  --tn-shadow-btn:       0 8px 20px rgba(91, 163, 208, 0.32);
  --tn-shadow-btn-hover: 0 14px 28px rgba(91, 163, 208, 0.42);
}

/* ============ RESET ============ */
body #tn-app *,
body #tn-app *::before,
body #tn-app *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body #tn-app button,
body #tn-app input,
body #tn-app select,
body #tn-app textarea { font: inherit; color: inherit; }
body #tn-app img,
body #tn-app svg { display: block; max-width: 100%; }
body #tn-app a { color: inherit; text-decoration: none !important; }
body #tn-app button {
  background: none; border: 0; padding: 0; cursor: pointer;
  font-family: inherit; color: inherit;
}

/* ============ ANTI-TILDA + USER-SELECT ============ */
body #tn-app,
body #tn-app *,
body #tn-app *::before,
body #tn-app *::after {
  -webkit-user-select: none !important;
  -moz-user-select: none !important;
  user-select: none !important;
  -webkit-tap-highlight-color: transparent;
}
body #tn-app input,
body #tn-app textarea,
body #tn-app [contenteditable="true"] {
  -webkit-user-select: text !important;
  -moz-user-select: text !important;
  user-select: text !important;
}

/* ============ ROOT ============ */
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }

body #tn-app {
  font-family: var(--tn-font) !important;
  font-size: var(--tn-text-base);
  line-height: 1.5;
  color: var(--tn-text) !important;
  background: var(--tn-bg) !important;
  background-image: linear-gradient(135deg, var(--tn-bg-grad-start) 0%, var(--tn-bg-grad-end) 100%) !important;
  background-attachment: fixed;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
  isolation: isolate;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ============ SKIP-LINK ============ */
body #tn-app .tn-skip-link {
  position: absolute;
  left: -9999px; top: 8px;
  z-index: 9999;
  padding: 10px 16px;
  background: var(--tn-primary) !important;
  color: var(--tn-text-inverse) !important;
  border-radius: var(--tn-radius);
  font-weight: 700;
  font-size: var(--tn-text-sm);
  box-shadow: var(--tn-shadow-md);
}
body #tn-app .tn-skip-link:focus { left: 16px; }

/* ============ FOCUS RING ============ */
body #tn-app :focus { outline: none; }
body #tn-app :focus-visible {
  outline: 3px solid var(--tn-primary-light) !important;
  outline-offset: 2px;
}

/* ============ HEADER ============ */
body #tn-app .tn-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: rgba(247, 250, 252, 0.78) !important;
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid var(--tn-border) !important;
  transition: background var(--tn-transition);
}
html.tn-dark body #tn-app .tn-header {
  background: rgba(11, 17, 32, 0.78) !important;
  border-bottom-color: var(--tn-border) !important;
}
body #tn-app .tn-header-inner {
  max-width: var(--tn-container-max);
  margin: 0 auto;
  padding: 12px 24px;
  min-height: var(--tn-header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
body #tn-app .tn-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ============ BADGE (БРЕНД, с подзаголовочными марками — для центра) ============ */
body #tn-app .tn-badge {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 22px 8px;
  border-radius: var(--tn-radius);
  overflow: hidden;
  isolation: isolate;
  cursor: pointer;
  flex-shrink: 0;
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.42) 0%, transparent 60%),
    linear-gradient(60deg, rgba(255,255,255,0.20) 0%, rgba(255,255,255,0.04) 45%, transparent 75%),
    linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.24) 100%),
    linear-gradient(135deg, var(--tn-mintrans-light) 0%, var(--tn-mintrans-mid) 55%, var(--tn-mintrans-deep) 100%) !important;
  box-shadow:
    var(--tn-shadow-badge),
    inset 0 1px 0 rgba(255,255,255,0.30),
    inset 0 -1px 0 rgba(0,0,0,0.20) !important;
  transition: transform var(--tn-transition), box-shadow var(--tn-transition);
}
html.tn-dark body #tn-app .tn-badge {
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.42) 0%, transparent 60%),
    linear-gradient(60deg, rgba(255,255,255,0.22) 0%, rgba(255,255,255,0.05) 45%, transparent 75%),
    linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.18) 100%),
    linear-gradient(135deg, #2A6FA8 0%, #0A4577 55%, #003366 100%) !important;
}
body #tn-app .tn-badge::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 55%;
  background: linear-gradient(180deg, rgba(255,255,255,0.22) 0%, rgba(255,255,255,0) 100%);
  border-radius: inherit;
  border-bottom-left-radius: 50% 100%;
  border-bottom-right-radius: 50% 100%;
  opacity: 0.7;
  pointer-events: none;
  z-index: 1;
}
body #tn-app .tn-badge:hover { transform: translateY(-1px); }

body #tn-app .tn-badge-text {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: baseline;
  font-size: var(--tn-text-lg);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
  color: #FFFFFF !important;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.20);
  white-space: nowrap;
}
body #tn-app .tn-badge-tld {
  color: var(--tn-silver-soft) !important;
  font-weight: 700;
  margin-left: 1px;
}
body #tn-app .tn-badge-marks {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  margin-top: 6px;
}
body #tn-app .tn-badge-mark {
  height: 1.5px;
  border-radius: 0.75px;
  background: linear-gradient(90deg, transparent 0%, rgba(216,216,216,0.85) 22%, rgba(255,255,255,0.98) 50%, rgba(216,216,216,0.85) 78%, transparent 100%);
  opacity: 0.92;
}
body #tn-app .tn-badge-mark-long  { width: 100px; }
body #tn-app .tn-badge-mark-short { width: 52px; }

/* ============ BADGE-SM (компактный для шапки, разноцветные слова) ============ */
body #tn-app .tn-badge-sm {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px 13px;
  border-radius: 11px;
  overflow: hidden;
  isolation: isolate;
  cursor: pointer;
  flex-shrink: 0;
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.42) 0%, transparent 60%),
    linear-gradient(60deg, rgba(255,255,255,0.18) 0%, rgba(255,255,255,0.04) 45%, transparent 75%),
    linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.22) 100%),
    linear-gradient(135deg, var(--tn-mintrans-light) 0%, var(--tn-mintrans-mid) 55%, var(--tn-mintrans-deep) 100%) !important;
  box-shadow:
    0 6px 16px rgba(0, 20, 60, 0.20),
    0 2px 6px rgba(0, 20, 60, 0.12),
    inset 0 1px 0 rgba(255,255,255,0.28),
    inset 0 -1px 0 rgba(0,0,0,0.20) !important;
  transition: transform var(--tn-transition);
}
html.tn-dark body #tn-app .tn-badge-sm {
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.42) 0%, transparent 60%),
    linear-gradient(60deg, rgba(255,255,255,0.20) 0%, rgba(255,255,255,0.05) 45%, transparent 75%),
    linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.16) 100%),
    linear-gradient(135deg, #2A6FA8 0%, #0A4577 55%, var(--tn-mintrans-mid) 100%) !important;
}
body #tn-app .tn-badge-sm::before {
  content: '';
  position: absolute; inset: 0 0 auto 0; height: 55%;
  background: linear-gradient(180deg, rgba(255,255,255,0.20) 0%, rgba(255,255,255,0) 100%);
  border-radius: inherit;
  border-bottom-left-radius: 50% 100%;
  border-bottom-right-radius: 50% 100%;
  opacity: 0.7;
  pointer-events: none;
  z-index: 1;
}
body #tn-app .tn-badge-sm::after {
  content: '';
  position: absolute;
  left: 12px; right: 12px; bottom: 6px;
  height: 1.2px; border-radius: 0.6px;
  background: linear-gradient(90deg,
    transparent 0%, rgba(216,216,216,0.85) 15%,
    rgba(255,255,255,0.98) 50%, rgba(216,216,216,0.85) 85%, transparent 100%);
  opacity: 0.90; pointer-events: none; z-index: 2;
}
body #tn-app .tn-badge-sm:hover { transform: translateY(-1px); }

body #tn-app .tn-badge-sm-text {
  position: relative; z-index: 3;
  display: inline-flex; align-items: baseline;
  font-weight: 900; letter-spacing: -0.02em; line-height: 1;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.20);
  white-space: nowrap;
  font-size: var(--tn-text-md);
}
body #tn-app .tn-badge-sm-text .word-1 { color: #FFFFFF !important; }
body #tn-app .tn-badge-sm-text .word-2 { color: var(--tn-silver-soft) !important; opacity: 0.95; }
body #tn-app .tn-badge-sm-text .tld    { color: var(--tn-silver-soft) !important; opacity: 0.85; font-weight: 700; margin-left: 1px; }

/* ============ THEME TOGGLE ============ */
body #tn-app .tn-theme-toggle {
  width: 36px; height: 36px;
  border-radius: 9px;
  border: 1.5px solid var(--tn-border) !important;
  background: var(--tn-surface) !important;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--tn-text-muted) !important;
  transition: background var(--tn-transition), color var(--tn-transition), border-color var(--tn-transition);
}
body #tn-app .tn-theme-toggle:hover {
  background: var(--tn-surface-hover) !important;
  color: var(--tn-text) !important;
  border-color: var(--tn-border-strong) !important;
}
body #tn-app .tn-theme-toggle svg { width: 18px; height: 18px; }

/* ============ NAV LINK (для опциональных кнопок шапки) ============ */
body #tn-app .tn-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--tn-radius);
  font-size: var(--tn-text-base);
  font-weight: 600;
  color: var(--tn-text) !important;
  background: transparent !important;
  border: 1.5px solid transparent !important;
  transition: var(--tn-transition);
  cursor: pointer;
  line-height: 1;
  white-space: nowrap;
}
body #tn-app .tn-nav-link:hover {
  background: var(--tn-surface-hover) !important;
  border-color: var(--tn-border) !important;
}
body #tn-app .tn-nav-link-icon { font-size: 16px; line-height: 1; flex-shrink: 0; }

/* ============ MAIN / CONTAINER ============ */
body #tn-app .tn-main {
  flex: 1 1 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
}
body #tn-app .tn-main-centered {
  justify-content: center;
  align-items: center;
  padding: clamp(28px, 5vh, 60px) 24px;
}
body #tn-app .tn-container {
  max-width: var(--tn-container-max);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
body #tn-app .tn-section { padding: clamp(40px, 7vw, 80px) 0; }

/* ============ КАРТОЧКА ============ */
body #tn-app .tn-card {
  width: 100%;
  max-width: 460px;
  margin: 0 auto;
  background: var(--tn-surface) !important;
  border: 1px solid var(--tn-border) !important;
  border-radius: var(--tn-radius-lg);
  box-shadow: var(--tn-shadow-card);
  padding: clamp(28px, 4.5vw, 40px) clamp(24px, 4vw, 36px);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  animation: tn-card-in 0.35s ease-out;
}
@keyframes tn-card-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === Эмблема внутри карточки === */
body #tn-app .tn-card-emblem {
  position: relative;
  width: 56px; height: 56px;
  margin: 0 auto 18px;
  border-radius: 14px;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.42) 0%, transparent 60%),
    linear-gradient(60deg, rgba(255,255,255,0.18) 0%, rgba(255,255,255,0.04) 45%, transparent 75%),
    linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.22) 100%),
    linear-gradient(135deg, var(--tn-mintrans-light) 0%, var(--tn-mintrans-mid) 55%, var(--tn-mintrans-deep) 100%) !important;
  box-shadow: var(--tn-shadow-emblem) !important;
  display: flex; align-items: center; justify-content: center;
}
html.tn-dark body #tn-app .tn-card-emblem {
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.42) 0%, transparent 60%),
    linear-gradient(60deg, rgba(255,255,255,0.20) 0%, rgba(255,255,255,0.05) 45%, transparent 75%),
    linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.16) 100%),
    linear-gradient(135deg, #2A6FA8 0%, #0A4577 55%, var(--tn-mintrans-mid) 100%) !important;
}
body #tn-app .tn-card-emblem::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 55%;
  background: linear-gradient(180deg, rgba(255,255,255,0.22) 0%, rgba(255,255,255,0) 100%);
  border-radius: inherit;
  border-bottom-left-radius: 50% 100%;
  border-bottom-right-radius: 50% 100%;
  opacity: 0.7; pointer-events: none; z-index: 1;
}
body #tn-app .tn-card-emblem::after {
  content: ''; position: absolute;
  left: 10px; right: 10px; bottom: 7px;
  height: 1.4px; border-radius: 0.7px;
  background: linear-gradient(90deg,
    transparent 0%, rgba(216,216,216,0.85) 15%,
    rgba(255,255,255,0.98) 50%, rgba(216,216,216,0.85) 85%, transparent 100%);
  opacity: 0.90; pointer-events: none; z-index: 2;
}
body #tn-app .tn-card-emblem svg {
  position: relative; z-index: 3;
  width: 26px; height: 26px;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.20));
}

/* Большая эмблема для success / invalid экранов */
body #tn-app .tn-card-emblem-lg {
  width: 72px; height: 72px;
  border-radius: 18px;
  margin: 0 auto 20px;
}
body #tn-app .tn-card-emblem-lg svg { width: 36px; height: 36px; }
body #tn-app .tn-card-emblem-lg::after {
  left: 13px; right: 13px; bottom: 9px;
  height: 1.5px; border-radius: 0.75px;
}

/* === Заголовки карточки === */
body #tn-app .tn-card-eyebrow {
  text-align: center;
  font-family: var(--tn-font-mono) !important;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--tn-text-muted) !important;
  margin-bottom: 10px;
}
body #tn-app .tn-card-title {
  text-align: center;
  font-size: var(--tn-text-2xl);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--tn-text) !important;
  margin-bottom: 10px;
  line-height: 1.2;
}
body #tn-app .tn-card-desc {
  text-align: center;
  font-size: var(--tn-text-sm);
  color: var(--tn-text-muted) !important;
  margin-bottom: 24px;
  line-height: 1.55;
  max-width: 380px;
  margin-left: auto;
  margin-right: auto;
}

/* === Капсула (email / статус) === */
body #tn-app .tn-card-pill {
  display: block;
  text-align: center;
  margin: 0 auto 24px;
  padding: 7px 14px;
  width: fit-content;
  max-width: 100%;
  font-family: var(--tn-font-mono) !important;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--tn-text) !important;
  background: var(--tn-surface-inset) !important;
  border: 1px solid var(--tn-border-soft) !important;
  border-radius: var(--tn-radius-pill);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
body #tn-app .tn-card-pill-mono {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 10.5px;
  color: var(--tn-text-muted) !important;
}

/* === Низ карточки со ссылками === */
body #tn-app .tn-card-links {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--tn-border-soft) !important;
  display: flex; align-items: center; justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
}
body #tn-app .tn-card-links--split { justify-content: space-between; }

/* ============ СОСТОЯНИЯ (multi-state pages) ============ */
body #tn-app .tn-state { display: none; }
body #tn-app .tn-state.show {
  display: block;
  animation: tn-card-in 0.35s ease-out;
}
body #tn-app .tn-state-text {
  text-align: center;
  font-size: var(--tn-text-sm);
  color: var(--tn-text-muted) !important;
  line-height: 1.6;
  margin-bottom: 12px;
  max-width: 380px;
  margin-left: auto; margin-right: auto;
}
body #tn-app .tn-state-text:last-of-type { margin-bottom: 20px; }
body #tn-app .tn-state-actions {
  display: flex; flex-direction: column; gap: 8px;
}

/* ============ ТИПОГРАФИКА ============ */
body #tn-app .tn-title {
  font-size: var(--tn-text-2xl);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--tn-text) !important;
}
body #tn-app .tn-title-lg { font-size: var(--tn-text-3xl); }
body #tn-app .tn-subtitle {
  font-size: var(--tn-text-base);
  color: var(--tn-text-muted) !important;
  font-weight: 500;
  line-height: 1.5;
}
body #tn-app .tn-eyebrow {
  font-size: var(--tn-text-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tn-text-muted) !important;
}

/* ============ ПОЛЯ ВВОДА ============ */
body #tn-app .tn-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
  margin-bottom: 16px;
}
body #tn-app .tn-field:last-of-type { margin-bottom: 0; }

body #tn-app .tn-label,
body #tn-app .tn-field-label {
  font-weight: 600;
  font-size: 12.5px;
  color: var(--tn-text) !important;
  letter-spacing: 0.01em;
}
body #tn-app .tn-required { color: var(--tn-danger) !important; margin-left: 2px; }
body #tn-app .tn-field-hint {
  font-size: var(--tn-text-xs);
  color: var(--tn-text-light) !important;
  font-weight: 500;
  line-height: 1.4;
}

body #tn-app .tn-input {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--tn-border) !important;
  border-radius: var(--tn-radius);
  font-size: var(--tn-text-md);
  background: var(--tn-bg) !important;
  color: var(--tn-text) !important;
  transition: var(--tn-transition);
  line-height: 1.4;
  font-family: inherit !important;
  outline: none !important;
  appearance: none;
  -webkit-appearance: none;
}
body #tn-app .tn-input::placeholder { color: var(--tn-text-light) !important; opacity: 0.6; }
body #tn-app .tn-input:hover { border-color: var(--tn-border-strong) !important; }
body #tn-app .tn-input:focus {
  border-color: var(--tn-primary) !important;
  box-shadow: 0 0 0 4px var(--tn-primary-soft) !important;
  background: var(--tn-surface) !important;
}
body #tn-app .tn-input:disabled { opacity: 0.5; cursor: not-allowed; background: var(--tn-bg-soft) !important; }
body #tn-app .tn-input.error,
body #tn-app .tn-input--error { border-color: var(--tn-danger) !important; }
body #tn-app .tn-input.error:focus { box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.12) !important; }
body #tn-app .tn-input.success,
body #tn-app .tn-input--success { border-color: var(--tn-success) !important; }
body #tn-app .tn-input.success:focus { box-shadow: 0 0 0 4px rgba(4, 120, 87, 0.12) !important; }
body #tn-app .tn-input.with-toggle { padding-right: 42px; }

/* Группа input + addon (для аддона-кнопки справа от поля) */
body #tn-app .tn-input-group {
  display: flex;
  gap: 10px;
  align-items: stretch;
}
body #tn-app .tn-input-group .tn-input { flex: 1; min-width: 0; }
body #tn-app .tn-input-addon {
  background: var(--tn-surface-hover) !important;
  border: 1.5px solid var(--tn-border) !important;
  border-radius: var(--tn-radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--tn-text-muted) !important;
  width: 50px;
  flex-shrink: 0;
  cursor: pointer;
  transition: var(--tn-transition);
}
body #tn-app .tn-input-addon:hover {
  background: var(--tn-primary-soft) !important;
  border-color: var(--tn-primary) !important;
  color: var(--tn-primary) !important;
}
body #tn-app .tn-input-addon svg { width: 20px; height: 20px; }
body #tn-app .tn-input-addon .icon-off { display: none; }
body #tn-app .tn-input-addon.is-visible .icon-on { display: none; }
body #tn-app .tn-input-addon.is-visible .icon-off { display: block; }

/* Inline-кнопка-глаз внутри input (альтернативный паттерн) */
body #tn-app .tn-input-wrap { position: relative; }
body #tn-app .tn-input-toggle {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px; height: 28px;
  border-radius: 6px;
  background: transparent !important;
  border: none !important;
  color: var(--tn-text-muted) !important;
  display: flex; align-items: center; justify-content: center;
  transition: color var(--tn-transition), background var(--tn-transition);
}
body #tn-app .tn-input-toggle:hover {
  color: var(--tn-primary) !important;
  background: var(--tn-surface-inset) !important;
}
body #tn-app .tn-input-toggle svg { width: 18px; height: 18px; }

/* Помощник под полем */
body #tn-app .tn-helper {
  font-size: var(--tn-text-xs);
  color: var(--tn-text-subtle) !important;
  min-height: 14px;
  line-height: 1.4;
  transition: color 0.15s ease;
}
body #tn-app .tn-helper.error { color: var(--tn-danger) !important; }
body #tn-app .tn-helper.success { color: var(--tn-success) !important; }

/* Индикатор силы пароля */
body #tn-app .tn-pwd-strength {
  display: flex;
  gap: 4px;
  margin-top: 4px;
}
body #tn-app .tn-pwd-strength-bar {
  flex: 1;
  height: 3px;
  background: var(--tn-border) !important;
  border-radius: 2px;
  transition: background 0.18s ease;
}
body #tn-app .tn-pwd-strength-bar.filled-weak { background: var(--tn-danger) !important; }
body #tn-app .tn-pwd-strength-bar.filled-medium { background: var(--tn-warning) !important; }
body #tn-app .tn-pwd-strength-bar.filled-strong { background: var(--tn-success) !important; }

/* Правила пароля */
body #tn-app .tn-pwd-rules {
  margin-top: 8px;
  padding: 10px 12px;
  background: var(--tn-surface-inset) !important;
  border: 1px solid var(--tn-border-soft) !important;
  border-radius: 8px;
  font-size: 11.5px;
  color: var(--tn-text-muted) !important;
  line-height: 1.5;
}
body #tn-app .tn-pwd-rules ul { list-style: none; padding: 0; margin: 0; }
body #tn-app .tn-pwd-rules li {
  display: flex; align-items: center; gap: 6px;
  padding: 1px 0;
}
body #tn-app .tn-pwd-rules li::before {
  content: '○';
  font-family: var(--tn-font-mono);
  color: var(--tn-text-subtle);
  width: 10px;
  display: inline-block;
}
body #tn-app .tn-pwd-rules li.ok::before { content: '✓'; color: var(--tn-success); }
body #tn-app .tn-pwd-rules li.ok { color: var(--tn-text) !important; }

/* ============ КНОПКИ ============ */
body #tn-app .tn-btn,
body #tn-app .tn-btn-primary,
body #tn-app .tn-btn-secondary,
body #tn-app .tn-btn-outline,
body #tn-app .tn-btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  min-height: 48px;
  border-radius: var(--tn-radius);
  font-size: var(--tn-text-md);
  font-weight: 700;
  font-family: inherit !important;
  letter-spacing: 0.01em;
  line-height: 1.3;
  border: 1.5px solid transparent !important;
  cursor: pointer;
  transition: var(--tn-transition);
  position: relative;
  isolation: isolate;
  white-space: nowrap;
}
body #tn-app .tn-btn:disabled,
body #tn-app .tn-btn-primary:disabled,
body #tn-app .tn-btn-secondary:disabled,
body #tn-app .tn-btn-outline:disabled,
body #tn-app .tn-btn-ghost:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none !important;
  filter: none !important;
}

body #tn-app .tn-btn-primary {
  background: linear-gradient(135deg, var(--tn-primary) 0%, var(--tn-primary-light) 100%) !important;
  color: var(--tn-text-inverse) !important;
  box-shadow: var(--tn-shadow-btn) !important;
  overflow: hidden;
}
body #tn-app .tn-btn-primary::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.20) 0%, transparent 55%);
  pointer-events: none; z-index: 0;
}
body #tn-app .tn-btn-primary > * { position: relative; z-index: 1; }
body #tn-app .tn-btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--tn-shadow-btn-hover) !important;
  filter: brightness(1.05);
}
body #tn-app .tn-btn-primary:active:not(:disabled) { transform: translateY(0); }

body #tn-app .tn-btn-secondary {
  background: var(--tn-surface) !important;
  color: var(--tn-text) !important;
  border-color: var(--tn-border) !important;
}
body #tn-app .tn-btn-secondary:hover:not(:disabled) {
  background: var(--tn-surface-hover) !important;
  border-color: var(--tn-border-strong) !important;
}

body #tn-app .tn-btn-outline {
  background: transparent !important;
  color: var(--tn-primary) !important;
  border-color: var(--tn-primary) !important;
  padding: 11px 20px;
  min-height: 44px;
  font-size: var(--tn-text-sm);
}
body #tn-app .tn-btn-outline:hover:not(:disabled) {
  background: var(--tn-primary-soft) !important;
  transform: translateY(-1px);
}

body #tn-app .tn-btn-ghost {
  background: transparent !important;
  color: var(--tn-text) !important;
}
body #tn-app .tn-btn-ghost:hover:not(:disabled) {
  background: var(--tn-surface-hover) !important;
}

body #tn-app .tn-btn-block { width: 100%; }

/* ============ ССЫЛКИ ============ */
body #tn-app .tn-link,
body #tn-app a.tn-link,
body #tn-app a.tn-link:link,
body #tn-app a.tn-link:visited,
body #tn-app button.tn-link {
  color: var(--tn-primary) !important;
  font-weight: 600;
  font-size: var(--tn-text-sm);
  cursor: pointer;
  text-decoration: none !important;
  border: none !important;
  background: transparent !important;
  padding: 4px 0;
  border-bottom: 1px dashed transparent !important;
  transition: var(--tn-transition);
}
body #tn-app .tn-link:hover {
  border-bottom-color: var(--tn-primary) !important;
  opacity: 0.85;
}

body #tn-app .tn-link-disabled {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--tn-text-light) !important;
  font-weight: 600;
  font-size: var(--tn-text-sm);
  cursor: not-allowed;
  opacity: 0.65;
  padding-bottom: 1px;
}

/* ============ СОСТОЯНИЯ / СООБЩЕНИЯ ============ */
body #tn-app .tn-error-text {
  color: var(--tn-danger) !important;
  font-size: var(--tn-text-sm);
  font-weight: 500;
  line-height: 1.4;
  min-height: 18px;
  text-align: center;
  margin-top: 14px;
}
body #tn-app .tn-error-message {
  padding: 10px 14px;
  background: var(--tn-danger-soft) !important;
  border: 1px solid #FECACA !important;
  border-left: 3px solid var(--tn-danger) !important;
  border-radius: 8px;
  font-size: var(--tn-text-sm);
  color: var(--tn-danger) !important;
  line-height: 1.5;
}
html.tn-dark body #tn-app .tn-error-message {
  background: var(--tn-error-bg) !important;
  border-color: #5A1A1A !important;
  color: #FCA5A5 !important;
}

/* ============ СПИННЕР ============ */
body #tn-app .tn-spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: #FFFFFF;
  animation: tn-spin 0.7s linear infinite;
  flex-shrink: 0;
}
body #tn-app .tn-spinner-lg {
  width: 24px; height: 24px;
  border-width: 3px;
  border-color: var(--tn-border-soft);
  border-top-color: var(--tn-primary);
  margin: 0 auto 16px;
  display: block;
}
@keyframes tn-spin { to { transform: rotate(360deg); } }

/* ============ TOAST ============ */
.tn-toast {
  position: fixed;
  right: 18px; bottom: 64px;
  z-index: 10001;
  display: flex; align-items: center; gap: 9px;
  background: var(--tn-surface);
  color: var(--tn-text);
  border: 1px solid var(--tn-border);
  border-left: 3px solid var(--tn-primary);
  border-radius: 11px;
  padding: 11px 16px;
  font-size: var(--tn-text-sm);
  font-weight: 600;
  max-width: min(340px, calc(100vw - 36px));
  box-shadow: var(--tn-shadow-md);
  transform: translateY(14px);
  opacity: 0;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.18s ease;
}
.tn-toast.is-show { transform: translateY(0); opacity: 1; }
.tn-toast::before {
  content: ''; flex: 0 0 auto;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--tn-primary);
}
.tn-toast-error   { border-left-color: var(--tn-danger); }
.tn-toast-error::before   { background: var(--tn-danger); }
.tn-toast-success { border-left-color: var(--tn-success); }
.tn-toast-success::before { background: var(--tn-success); }

/* ============ ФУТЕР (4 строки) ============ */
body #tn-app .tn-footer {
  margin-top: auto;
  padding: 26px 24px 30px;
  border-top: 1px solid var(--tn-border) !important;
  background: rgba(255, 255, 255, 0.4) !important;
  text-align: center;
  position: relative;
}
html.tn-dark body #tn-app .tn-footer {
  background: rgba(11, 17, 32, 0.4) !important;
}
body #tn-app .tn-footer-inner {
  max-width: var(--tn-container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

/* Строка 1: © + РУТ (МИИТ) + НИИТ-бейдж */
body #tn-app .tn-footer-brand {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--tn-text) !important;
  line-height: 1;
}
body #tn-app .tn-footer-brand > * { line-height: 1; }
body #tn-app .tn-footer-copyright {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--tn-font-mono) !important;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--tn-text-muted) !important;
  white-space: nowrap;
  line-height: 1;
}
body #tn-app .tn-copyright-mark {
  opacity: 0.7;
  font-size: 13px;
  line-height: 1;
  position: relative;
  top: -0.5px;
}
body #tn-app .tn-copyright-year {
  font-family: var(--tn-font-mono) !important;
  font-weight: 700;
  color: var(--tn-text) !important;
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
body #tn-app .tn-footer-org {
  font-size: 11px;
  font-weight: 500;
  color: var(--tn-text-muted) !important;
  letter-spacing: 0.01em;
  opacity: 0.85;
  white-space: nowrap;
  line-height: 1;
}
body #tn-app .tn-footer-sep {
  color: var(--tn-text-subtle) !important;
  opacity: 0.7;
  font-weight: 400;
  line-height: 1;
}

/* Строка 2: Научно-исследовательский институт транспорта */
body #tn-app .tn-footer-niit-full {
  font-size: 11px;
  font-weight: 500;
  color: var(--tn-text-muted) !important;
  line-height: 1.5;
  letter-spacing: 0.01em;
  opacity: 0.85;
  margin-top: 2px;
}

/* Строка 3: Оператор */
body #tn-app .tn-footer-operator {
  font-size: 11px;
  color: var(--tn-text-muted) !important;
  line-height: 1.5;
  max-width: 620px;
  margin-top: 8px;
}

/* Строка 4: Разработка */
body #tn-app .tn-footer-developer {
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--tn-text-subtle) !important;
  opacity: 0.85;
  margin-top: 6px;
  line-height: 1.5;
}
body #tn-app .tn-footer-developer a {
  color: inherit !important;
  border-bottom: 1px dashed currentColor;
  transition: opacity 0.15s ease;
}
body #tn-app .tn-footer-developer a:hover { opacity: 0.6; }

/* ============ НИИТ-БЕЙДЖ (слоистый градиент с бликом) ============ */
body #tn-app .tn-niit,
body #tn-app .tn-niit-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 10px;
  border-radius: 7px;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.42) 0%, transparent 60%),
    linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.20) 100%),
    linear-gradient(135deg, var(--tn-mintrans-light) 0%, var(--tn-mintrans-mid) 55%, var(--tn-mintrans-deep) 100%) !important;
  box-shadow: var(--tn-shadow-niit) !important;
  vertical-align: middle;
  line-height: 1;
  flex-shrink: 0;
}
html.tn-dark body #tn-app .tn-niit,
html.tn-dark body #tn-app .tn-niit-badge {
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,0.42) 0%, transparent 60%),
    linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.16) 100%),
    linear-gradient(135deg, #2A6FA8 0%, #0A4577 55%, #003366 100%) !important;
}
body #tn-app .tn-niit::before,
body #tn-app .tn-niit-badge::before {
  content: '';
  position: absolute; inset: 0 0 auto 0; height: 55%;
  background: linear-gradient(180deg, rgba(255,255,255,0.22) 0%, rgba(255,255,255,0) 100%);
  border-radius: inherit;
  border-bottom-left-radius: 50% 100%;
  border-bottom-right-radius: 50% 100%;
  opacity: 0.7; pointer-events: none; z-index: 1;
}
body #tn-app .tn-niit::after,
body #tn-app .tn-niit-badge::after {
  content: '';
  position: absolute;
  left: 6px; right: 6px; bottom: 4px;
  height: 1px; border-radius: 0.5px;
  background: linear-gradient(90deg,
    transparent 0%, rgba(216,216,216,0.90) 15%,
    rgba(255,255,255,0.98) 50%, rgba(216,216,216,0.90) 85%, transparent 100%);
  opacity: 0.92; pointer-events: none; z-index: 2;
}
body #tn-app .tn-niit-text,
body #tn-app .tn-niit-badge-text {
  position: relative; z-index: 3;
  color: #FFFFFF !important;
  font-family: var(--tn-font-mono) !important;
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-shadow: 0 1px 3px rgba(0,0,0,0.25);
  line-height: 1;
}

/* ============ АДАПТИВ ============ */
@media (max-width: 768px) {
  :root {
    --tn-header-h: 56px;
    --tn-footer-pad: 24px;
  }
  body #tn-app .tn-header-inner { padding: 10px 14px; }
  body #tn-app .tn-container { padding: 0 14px; }
  body #tn-app .tn-main-centered { padding: 32px 14px; }

  body #tn-app .tn-badge { padding: 8px 18px 7px; }
  body #tn-app .tn-badge-text { font-size: var(--tn-text-base); }
  body #tn-app .tn-badge-mark-long { width: 82px; }
  body #tn-app .tn-badge-mark-short { width: 42px; }

  body #tn-app .tn-badge-sm { padding: 8px 14px 11px; }
  body #tn-app .tn-badge-sm-text { font-size: var(--tn-text-sm); }
  body #tn-app .tn-badge-sm::after { left: 10px; right: 10px; bottom: 5px; }

  body #tn-app .tn-nav-link { padding: 8px 12px; font-size: var(--tn-text-sm); }
  body #tn-app .tn-nav-link-label-long { display: none; }

  body #tn-app .tn-card { padding: 28px 22px 24px; border-radius: 16px; }
  body #tn-app .tn-card-title { font-size: 22px; }
  body #tn-app .tn-card-desc { font-size: 13px; }
  body #tn-app .tn-card-emblem { width: 52px; height: 52px; border-radius: 13px; }
  body #tn-app .tn-card-emblem svg { width: 24px; height: 24px; }
  body #tn-app .tn-card-emblem-lg { width: 64px; height: 64px; border-radius: 16px; }
  body #tn-app .tn-card-emblem-lg svg { width: 32px; height: 32px; }

  body #tn-app .tn-title { font-size: var(--tn-text-xl); }
  body #tn-app .tn-title-lg { font-size: var(--tn-text-2xl); }

  body #tn-app .tn-footer { padding: 22px 16px 26px; }
  body #tn-app .tn-footer-brand { font-size: 12.5px; gap: 6px; }
  body #tn-app .tn-footer-copyright { font-size: 11px; }
  body #tn-app .tn-footer-niit-full { font-size: 10.5px; }
  body #tn-app .tn-card-links { gap: 12px; }

  .tn-toast { right: 12px; bottom: 56px; padding: 10px 14px; max-width: calc(100vw - 24px); }
}

@media (max-width: 420px) {
  body #tn-app .tn-card { padding: 24px 18px 22px; }
  body #tn-app .tn-badge-sm-text { font-size: var(--tn-text-sm); }
  body #tn-app .tn-card-links { gap: 8px; }
  body #tn-app .tn-card-links .tn-link { font-size: var(--tn-text-sm); }
}

/* ============ AUTO-ТЕМА (для пользователей без явного выбора) ============ */
@media (prefers-color-scheme: dark) {
  html:not(.tn-light) {
    --tn-primary: #5BA3D0;
    --tn-primary-dark: #055397;
    --tn-primary-light: #7BBDE3;
    --tn-primary-soft: rgba(91, 163, 208, 0.12);

    --tn-bg: #0B1120;
    --tn-bg-grad-start: #0B1120;
    --tn-bg-grad-end: #0F1A33;
    --tn-bg-soft: #151D2E;
    --tn-surface: #151D2E;
    --tn-surface-hover: #1E293B;
    --tn-surface-inset: #1E283D;
    --tn-border: #1E293B;
    --tn-border-soft: #2C3A52;
    --tn-border-strong: #334155;

    --tn-text: #F8FAFC;
    --tn-text-muted: #94A3B8;
    --tn-text-light: #64748B;
    --tn-text-subtle: #64748B;
    --tn-text-inverse: #0F172A;

    --tn-error-bg: #2A1010;
    --tn-success-bg: #0F2418;
    --tn-warning-bg: #2A1F08;

    --tn-shadow-card: 0 8px 28px rgba(0, 0, 0, 0.50), 0 2px 6px rgba(0, 0, 0, 0.30);
  }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ УТИЛИТЫ ============ */
[hidden] { display: none !important; }
body #tn-app .tn-hidden { display: none !important; }
body #tn-app .tn-sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ============ КОНЕЦ TN-BASE v1.2 ============ */