/* Birka — токены темы + семантика. Компоненты (.btn, .nav) — в tailwind.css */

/* Тёмные токены — по умолчанию: при неизвестном data-theme страница не теряет цвета */
:root,
:root[data-theme="dark"] {
  --bg-primary: #000000;
  --bg-secondary: rgb(24 24 27);
  --bg-tertiary: rgb(18 18 20);
  --bg-hover: rgb(28 28 32);
  --border-primary: rgb(39 39 42);
  --border-secondary: rgb(63 63 70);
  --border-hover: rgb(82 82 91);
  --text-primary: rgb(244 244 245);
  --text-secondary: rgb(196 196 206);
  --text-tertiary: rgb(145 145 155);
  --nav-bg: rgba(0, 0, 0, 0.8);
  --nav-border: rgba(39, 39, 42, 0.5);
  --nav-active-bg: rgba(255, 255, 255, 0.1);
  --nav-active-hover: rgba(255, 255, 255, 0.15);
  /* Поля ввода: значение — яркое, подсказка — заметно бледнее, фокус — акцентом */
  --input-bg: rgb(16 16 19);
  --input-bg-hover: rgb(20 20 24);
  --input-bg-readonly: rgba(255, 255, 255, 0.03);
  --input-border: rgb(52 52 58);
  --input-border-hover: rgb(82 82 91);
  --input-text: rgb(244 244 245);
  --input-placeholder: rgb(113 113 122);
  --focus-ring: rgba(14, 165, 233, 0.28);
  --accent: #0ea5e9;
  --accent-muted: rgba(14, 165, 233, 0.15);
  --accent-hover: #38bdf8;
  --danger: #f87171;
  --danger-hover: #fca5a5;
  --danger-bg: rgba(248, 113, 113, 0.12);
  --success: #4ade80;
  --success-bg: rgba(74, 222, 128, 0.12);
  --btn-primary-bg: #ffffff;
  --btn-primary-fg: #000000;
  --btn-primary-hover: rgb(228 228 231);
  --btn-primary-shadow: 0 1px 3px rgba(255, 255, 255, 0.1);
  --btn-primary-ring: rgba(255, 255, 255, 0.3);
  --surface-muted: rgba(255, 255, 255, 0.05);
  --shadow-nav: none;
  --shadow-card: none;
  --shadow-card-hover: none;
  --shadow-elevated: 0 12px 40px rgba(0, 0, 0, 0.35);
}

:root[data-theme="light"] {
  --bg-primary: #f3f5f8;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e8ecf1;
  --bg-hover: #e4e9ef;
  --border-primary: #dfe4eb;
  --border-secondary: #cfd6e0;
  --border-hover: #b4becb;
  --text-primary: #111827;
  --text-secondary: #3d4756;
  --text-tertiary: #667085;
  --nav-bg: rgba(255, 255, 255, 0.88);
  --nav-border: rgba(15, 23, 42, 0.08);
  --nav-active-bg: #e2e8f0;
  --nav-active-hover: #d8e0ea;
  --input-bg: #ffffff;
  --input-bg-hover: #fbfcfd;
  --input-bg-readonly: #f3f5f8;
  --input-border: #cfd6e0;
  --input-border-hover: #a9b4c2;
  --input-text: #111827;
  --input-placeholder: #8c96a7;
  --focus-ring: rgba(3, 105, 161, 0.2);
  --accent: #0369a1;
  --accent-muted: rgba(3, 105, 161, 0.1);
  --accent-hover: #075985;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --danger-bg: rgba(220, 38, 38, 0.1);
  --success: #15803d;
  --success-bg: rgba(21, 128, 61, 0.1);
  --btn-primary-bg: #18181b;
  --btn-primary-fg: #ffffff;
  --btn-primary-hover: #27272a;
  --btn-primary-shadow: 0 1px 2px rgba(15, 23, 42, 0.12), 0 4px 12px rgba(15, 23, 42, 0.08);
  --btn-primary-ring: rgba(24, 24, 27, 0.28);
  --surface-muted: #eef2f6;
  --shadow-nav: 0 1px 0 rgba(15, 23, 42, 0.05), 0 8px 24px rgba(15, 23, 42, 0.05);
  --shadow-card: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.05);
  --shadow-card-hover: 0 4px 10px rgba(15, 23, 42, 0.06), 0 14px 36px rgba(15, 23, 42, 0.08);
  --shadow-elevated: 0 16px 48px rgba(15, 23, 42, 0.12);
}

.text-fg { color: var(--text-primary); }
.text-muted { color: var(--text-secondary); }
.text-subtle { color: var(--text-tertiary); }
.bg-page { background-color: var(--bg-primary); }
.bg-surface { background-color: var(--bg-secondary); }
.bg-surface-muted { background-color: var(--surface-muted); }
.border-surface { border-color: var(--border-primary); }

html {
  color-scheme: dark;
}

html[data-theme="light"] {
  color-scheme: light;
}

html[data-theme="dark"] body,
html[data-theme="light"] body {
  background-color: var(--bg-primary);
  color: var(--text-secondary);
}

html[data-theme="light"] body.text-zinc-300 {
  color: var(--text-secondary);
}

html[data-theme="dark"] nav,
html[data-theme="light"] nav {
  background-color: var(--nav-bg);
  border-bottom-color: var(--nav-border);
  box-shadow: var(--shadow-nav);
}

html[data-theme="light"] .nav-link-active {
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.08);
}

html[data-theme="dark"] ::selection {
  background: rgba(14, 165, 233, 0.28);
  color: #f4f4f5;
}

html[data-theme="light"] ::selection {
  background: rgba(3, 105, 161, 0.18);
  color: #0f172a;
}

html[data-theme="light"] {
  scrollbar-color: #c5cbd3 var(--bg-primary);
}

html[data-theme="light"] ::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

html[data-theme="light"] ::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

html[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: #c5cbd3;
  border-radius: 999px;
  border: 2px solid var(--bg-primary);
}

html[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background: #a8b0ba;
}

html[data-theme="light"] footer {
  background-color: var(--bg-secondary);
  border-top-color: var(--border-primary);
  color: var(--text-tertiary);
}

html[data-theme="light"] footer.bg-black {
  background-color: var(--bg-secondary);
}

html[data-theme="light"] #consent-banner {
  background-color: rgba(255, 255, 255, 0.96);
  border-top-color: var(--border-primary);
  box-shadow: 0 -12px 40px rgba(15, 23, 42, 0.08);
}

html[data-theme="light"] #mobile-menu {
  background-color: rgba(255, 255, 255, 0.97);
  border-top-color: var(--nav-border);
}

html[data-theme="light"] table thead tr,
html[data-theme="light"] table tbody tr {
  border-color: var(--border-primary);
}

html[data-theme="light"] table tbody tr:hover {
  background-color: var(--surface-muted);
}

/* Zinc/white утилиты заточены под тёмную тему — перекладываем на токены */
html[data-theme="light"] .text-white,
html[data-theme="light"] .text-zinc-100,
html[data-theme="light"] .text-zinc-200,
html[data-theme="light"] .text-zinc-300,
html[data-theme="light"] .hover\:text-white:hover,
html[data-theme="light"] .hover\:text-zinc-200:hover,
html[data-theme="light"] .hover\:text-zinc-300:hover {
  color: var(--text-primary);
}

html[data-theme="light"] .text-zinc-400,
html[data-theme="light"] .hover\:text-zinc-400:hover {
  color: var(--text-secondary);
}

html[data-theme="light"] .text-zinc-500,
html[data-theme="light"] .text-zinc-600 {
  color: var(--text-tertiary);
}

html[data-theme="light"] .text-zinc-700 {
  color: var(--text-secondary);
}

html[data-theme="light"] .text-accent-300,
html[data-theme="light"] .text-accent-400,
html[data-theme="light"] .hover\:text-accent-300:hover,
html[data-theme="light"] .hover\:text-accent-400:hover,
html[data-theme="light"] .group:hover .group-hover\:text-accent-400 {
  color: var(--accent);
}

html[data-theme="light"] .text-red-400,
html[data-theme="light"] .hover\:text-red-300:hover,
html[data-theme="light"] .hover\:text-red-400:hover {
  color: var(--danger);
}

html[data-theme="light"] .text-amber-400,
html[data-theme="light"] .hover\:text-amber-300:hover {
  color: #d97706;
}

html[data-theme="light"] .text-orange-400 {
  color: #ea580c;
}

html[data-theme="light"] .text-emerald-400 {
  color: #059669;
}

html[data-theme="light"] .text-primary-400 {
  color: #4f46e5;
}

html[data-theme="light"] .btn-danger,
html[data-theme="light"] .auth-social-btn--vk,
html[data-theme="light"] .auth-social-btn--yandex {
  color: #ffffff;
}

html[data-theme="light"] .bg-black {
  background-color: var(--bg-primary);
}

html[data-theme="light"] .bg-zinc-900,
html[data-theme="light"] .bg-zinc-900\/60,
html[data-theme="light"] .bg-zinc-900\/70,
html[data-theme="light"] .bg-zinc-900\/95 {
  background-color: var(--bg-secondary);
}

html[data-theme="light"] .bg-zinc-800,
html[data-theme="light"] .bg-zinc-800\/40,
html[data-theme="light"] .bg-zinc-800\/60 {
  background-color: var(--bg-tertiary);
}

html[data-theme="light"] .bg-zinc-800\/80 {
  background-color: var(--bg-secondary);
}

html[data-theme="light"] code.bg-zinc-800 {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

html[data-theme="light"] .bg-white\/5,
html[data-theme="light"] .bg-zinc-500\/20 {
  background-color: var(--surface-muted);
}

html[data-theme="light"] .border-white\/10,
html[data-theme="light"] .border-zinc-800,
html[data-theme="light"] .border-zinc-800\/50,
html[data-theme="light"] .border-zinc-700,
html[data-theme="light"] .border-zinc-700\/50,
html[data-theme="light"] .border-zinc-700\/30,
html[data-theme="light"] .divide-zinc-800,
html[data-theme="light"] .divide-zinc-800\/50 > :not([hidden]) ~ :not([hidden]) {
  border-color: var(--border-primary);
}

html[data-theme="light"] .border-zinc-600,
html[data-theme="light"] .hover\:border-zinc-600:hover,
html[data-theme="light"] .hover\:border-zinc-400:hover,
html[data-theme="light"] .hover\:border-zinc-700:hover {
  border-color: var(--border-hover);
}

html[data-theme="light"] .hover\:bg-white\/5:hover,
html[data-theme="light"] .hover\:bg-zinc-800\/50:hover,
html[data-theme="light"] .hover\:bg-zinc-800\/60:hover,
html[data-theme="light"] .hover\:bg-zinc-900:hover,
html[data-theme="light"] .hover\:bg-zinc-700:hover,
html[data-theme="light"] .hover\:bg-zinc-700\/60:hover {
  background-color: var(--bg-hover);
}

html[data-theme="light"] .bg-accent-500\/5 {
  background-color: var(--accent-muted);
}

html[data-theme="light"] .from-accent-500\/5 {
  --tw-gradient-from: var(--accent-muted) var(--tw-gradient-from-position);
}

html[data-theme="light"] .bg-accent-500\/20,
html[data-theme="light"] .border-accent-500\/20,
html[data-theme="light"] .border-accent-500\/30 {
  border-color: rgba(3, 105, 161, 0.22);
}

html[data-theme="light"] .bg-accent-500\/20 {
  background-color: rgba(3, 105, 161, 0.1);
}

html[data-theme="light"] .bg-primary-600\/30,
html[data-theme="light"] .bg-primary-500\/20 {
  background-color: rgba(3, 105, 161, 0.1);
}

html[data-theme="light"] .border-primary-500\/30 {
  border-color: rgba(3, 105, 161, 0.22);
}

html[data-theme="light"] .ring-white\/20 {
  --tw-ring-color: rgba(24, 24, 27, 0.16);
}


/* Компоненты .btn/.form-input/.card/.section — в tailwind.css */


.auth-card {
  box-sizing: border-box;
  width: 100%;
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
  border-radius: 0.75rem;
  border: 1px solid var(--border-primary);
  padding: 2rem 1.75rem;
}

html[data-theme="dark"] .auth-card {
  background: linear-gradient(to bottom, rgb(24 24 27), rgb(18 18 20));
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
}

html[data-theme="light"] .auth-card {
  background: var(--bg-secondary);
  box-shadow: var(--shadow-card), 0 18px 48px rgba(15, 23, 42, 0.06);
}

.auth-card .form-group:last-of-type {
  margin-bottom: 0;
}

/* ЛК: форма данных профиля шире стандартной auth-card */
.auth-card--wide {
  max-width: 48rem;
}


/* Кнопки соц. сетей */
.auth-social {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Без PostCSS @apply не раскрывается — явный flex, иначе иконка и текст «ломают» высоту кнопки */
.auth-social-btn {
  box-sizing: border-box;
  width: 100%;
  min-height: 2.75rem;
  display: inline-flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.625rem 1rem;
  border-radius: 0.625rem;
  font-size: 0.875rem;
  line-height: 1.25;
  font-weight: 500;
  border-width: 1px;
  border-style: solid;
  text-decoration: none;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s, box-shadow 0.2s, transform 0.2s;
  background-color: var(--border-primary);
  border-color: var(--border-secondary);
  color: var(--text-primary);
}

.auth-social-btn svg {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  display: block;
}

.auth-social-btn:hover {
  background-color: var(--border-secondary);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

html[data-theme="dark"] .auth-social-btn:hover {
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

html[data-theme="light"] .auth-social-btn:hover {
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.auth-social-btn:active {
  transform: translateY(0);
}

/* Google — ближе к официальным гайдлайнам (светлая/тёмная кнопка), логотип многоцветный */
.auth-social-btn--google {
  font-weight: 500;
  letter-spacing: 0.01em;
}

html[data-theme="dark"] .auth-social-btn--google {
  background-color: #131314;
  border-color: #8e918f;
  color: #e3e3e3;
}

html[data-theme="dark"] .auth-social-btn--google:hover {
  background-color: #1f1f1f;
  border-color: #b0b0b0;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

html[data-theme="light"] .auth-social-btn--google {
  background-color: #ffffff;
  border-color: #747775;
  color: #1f1f1f;
}

html[data-theme="light"] .auth-social-btn--google:hover {
  background-color: #f8f9fa;
  border-color: #5f6368;
  box-shadow: 0 1px 2px rgba(60, 64, 67, 0.15);
}

/* VK ID — фирменный синий, белая иконка */
.auth-social-btn--vk {
  font-weight: 500;
  letter-spacing: 0.01em;
  background-color: #0077ff;
  border-color: #0077ff;
  color: #ffffff;
}

.auth-social-btn--vk:hover {
  background-color: #0066e0;
  border-color: #0066e0;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 119, 255, 0.35);
}

html[data-theme="dark"] .auth-social-btn--vk:hover {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

/* Яндекс ID — фирменный красный, на тёмном фоне чуть приглушённее + объём */
.auth-social-btn--yandex {
  font-weight: 500;
  letter-spacing: 0.01em;
  background-color: #fc3f1d;
  border-color: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.auth-social-btn--yandex:hover {
  background-color: #ff5a3d;
  border-color: rgba(255, 255, 255, 0.22);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(252, 63, 29, 0.35);
}

html[data-theme="dark"] .auth-social-btn--yandex {
  background: linear-gradient(180deg, #ff4a2e 0%, #d93418 100%);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset, 0 2px 8px rgba(0, 0, 0, 0.35);
}

html[data-theme="dark"] .auth-social-btn--yandex:hover {
  background: linear-gradient(180deg, #ff5c42 0%, #e03a1f 100%);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1) inset, 0 4px 16px rgba(0, 0, 0, 0.45);
}

html[data-theme="light"] .auth-social-btn--yandex {
  border-color: #d32f2f;
  box-shadow: 0 1px 2px rgba(211, 47, 47, 0.2);
}

html[data-theme="light"] .auth-social-btn--yandex:hover {
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.25);
}



.link-accent {
  color: var(--accent);
}

.link-accent:hover {
  color: var(--accent-hover);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--accent);
  z-index: 9999;
  width: 0;
  pointer-events: none;
}

#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
}

.window-frame {
  border-radius: 0.75rem;
  border: 1px solid var(--border-primary);
  background: var(--bg-secondary);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
}

.window-frame__img {
  display: block;
  width: 100%;
  height: auto;
}

.module-card {
  background-color: var(--bg-secondary);
}

/* Полноэкранный стек модулей: следующая панель наезжает на предыдущую */
.modules-stack {
  --nav-h: 4rem;
  --stack-inset: 0.75rem;
  --stack-top: calc(var(--nav-h) + var(--stack-inset));
  --stack-h: calc(100vh - var(--nav-h) - var(--stack-inset) * 2);
  --stack-h: calc(100svh - var(--nav-h) - var(--stack-inset) * 2);
  padding-inline: clamp(0.75rem, 1.4vw, 1.25rem);
  padding-bottom: 3rem;
}

.modules-stack__panel {
  position: sticky;
  top: var(--stack-top);
  height: var(--stack-h);
  display: flex;
  z-index: 1;
}

.modules-stack__panel:nth-child(1) { z-index: 1; }
.modules-stack__panel:nth-child(2) { z-index: 2; }
.modules-stack__panel:nth-child(3) { z-index: 3; }
.modules-stack__panel:nth-child(4) { z-index: 4; }

.modules-stack .module-card {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  box-shadow:
    0 18px 50px rgba(0, 0, 0, 0.38),
    0 0 0 1px rgba(0, 0, 0, 0.12);
  transform: scale(calc(1 - var(--stack-progress, 0) * 0.04));
  transform-origin: center top;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

html[data-theme="light"] .modules-stack .module-card {
  box-shadow:
    var(--shadow-card),
    0 22px 56px rgba(15, 23, 42, 0.14);
}

.module-card__layout {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.module-card__copy {
  width: 100%;
}

.module-card__media {
  width: 100%;
  min-width: 0;
  min-height: 0;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modules-stack .module-card__media .window-frame {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modules-stack .module-card__media .window-frame__img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: min(52vh, 28rem);
  object-fit: contain;
  object-position: center;
}

@media (min-width: 1024px) {
  .modules-stack .module-card {
    padding: 1.5rem 1.75rem;
  }

  .module-card__layout {
    flex-direction: row;
    align-items: stretch;
    gap: 1.75rem;
    height: 100%;
  }

  .module-card__layout--reverse {
    flex-direction: row-reverse;
  }

  .module-card__copy {
    flex: 0 0 22%;
    max-width: 20rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .module-card__media {
    flex: 1 1 0;
    height: 100%;
  }

  .modules-stack .module-card__media .window-frame__img {
    max-height: 100%;
  }
}

@media (max-width: 1023px) {
  .modules-stack__panel {
    height: auto;
    min-height: 0;
  }
}

.module-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border-primary);
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.card,
.faq-item,
.glass-card {
  box-shadow: var(--shadow-card);
}

html[data-theme="light"] .card:hover {
  box-shadow: var(--shadow-card-hover);
}

.glass-card {
  background: var(--bg-secondary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-primary);
  opacity: 0.95;
}

html[data-theme="light"] .glass-card {
  opacity: 1;
  background: rgba(255, 255, 255, 0.9);
}

html[data-theme="light"] #particles-canvas {
  opacity: 0.5;
  mix-blend-mode: multiply;
}


.faq-item {
  border: 1px solid var(--border-primary);
  border-radius: 0.75rem;
  background: var(--bg-secondary);
  overflow: hidden;
}

.faq-item + .faq-item {
  margin-top: 0.75rem;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1rem 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--text-tertiary);
  font-weight: 400;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item .faq-body {
  padding: 0 1.25rem 1.25rem;
  color: var(--text-secondary);
  line-height: 1.625;
  font-size: 0.9375rem;
}

.step-num {
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  background: var(--accent-muted);
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.fade-in-section {
  opacity: 0;
  filter: blur(8px);
  transform: translateY(0);
  transition: opacity 0.7s ease, filter 0.7s ease;
}

.fade-in-section.animate-in {
  opacity: 1;
  filter: none;
}

.stagger-item {
  opacity: 0;
  filter: blur(6px);
  transform: none;
  transition: opacity 0.55s ease, filter 0.55s ease;
}

.stagger-item.animate-in {
  opacity: 1;
  filter: none;
}

button, a {
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}

input, textarea, select {
  transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .fade-in-section,
  .stagger-item {
    opacity: 1;
    filter: none;
    transform: none;
  }

  .modules-stack .module-card {
    transform: none;
  }
}

/* ЛК табы — на токенах */
.lk-tab-link {
  color: var(--text-tertiary);
}
.lk-tab-link:hover {
  color: var(--text-primary);
  background-color: var(--bg-hover);
}
.lk-tab-link[aria-current="page"] {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-fg);
}

html[data-theme="light"] .lk-tab-link[aria-current="page"] {
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.12);
}

html[data-theme="light"] .window-frame {
  box-shadow: var(--shadow-elevated);
  border-color: var(--border-primary);
}

/* Справочник: меню расчётов справа и калькуляторы (templates/pages/reference/) */
.ref-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.ref-nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 1rem;
  border: 1px solid var(--border-primary);
  border-radius: 0.75rem;
  background: var(--bg-secondary);
  order: -1;
}

.ref-nav__section + .ref-nav__section {
  margin-top: 0.5rem;
}

/* Раздел — плашка-кнопка: открыт один, ссылки остальных свёрнуты. */
.ref-nav__group {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border-secondary);
  border-radius: 0.5rem;
  background: var(--bg-tertiary);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.ref-nav__group:hover {
  border-color: var(--border-hover);
  background: var(--bg-hover);
}

/* Обводка фокуса — только с клавиатуры, после клика мышью не остаётся. */
.ref-nav__group:focus {
  outline: none;
}

.ref-nav__group:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.ref-nav__group[aria-expanded="true"] {
  border-color: var(--accent);
  background: var(--accent-muted);
  color: var(--accent-hover);
}

.ref-nav__group::after {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  opacity: 0.7;
  transform: rotate(45deg);
  transition: transform 0.2s;
}

.ref-nav__group[aria-expanded="true"]::after {
  transform: rotate(-135deg);
}

/* Калькуляторы раздела — с отступом под плашкой, линия слева связывает их с разделом. */
.ref-nav__items {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin: 0.4rem 0 0.2rem 0.8rem;
  padding-left: 0.4rem;
  border-left: 1px solid var(--border-secondary);
}

.ref-nav__items[hidden] {
  display: none;
}

.ref-nav__link {
  padding: 0.45rem 0.7rem;
  border-left: 2px solid transparent;
  border-radius: 0 0.4rem 0.4rem 0;
  color: var(--text-secondary);
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.ref-nav__link:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.ref-nav__link--active {
  color: var(--text-primary);
  font-weight: 600;
  border-left-color: var(--accent);
  background: var(--bg-tertiary);
}

/* Узкий экран: меню над рабочим полем; широкий — справа и не уезжает при прокрутке. */
@media (min-width: 1024px) {
  .ref-layout {
    grid-template-columns: minmax(0, 1fr) 17rem;
  }

  .ref-nav {
    order: 0;
    position: sticky;
    top: 5rem;
  }
}

.ref-calc {
  display: grid;
  gap: 1rem;
  color: var(--text-primary);
}

.ref-calc fieldset {
  border: 1px solid var(--border-primary);
  border-radius: 0.5rem;
  padding: 0.6rem 1rem 0.8rem;
  margin: 0;
}

.ref-calc legend {
  font-weight: 600;
  padding: 0 0.4rem;
}

.ref-calc small {
  display: block;
  font-size: 0.8em;
  font-weight: 400;
  color: var(--text-tertiary);
}

.ref-calc legend small {
  display: inline;
  margin-left: 0.4rem;
}

.ref-calc fieldset > label {
  display: grid;
  grid-template-columns: 1fr 8rem 3rem;
  align-items: center;
  gap: 0.6rem;
  padding: 0.3rem 0;
}

.ref-calc fieldset > label[hidden] {
  display: none;
}

/* Те же токены, что у .form-input, но плотнее: числа в таблице расчёта */
.ref-calc input[type="text"] {
  width: 100%;
  min-height: 2.25rem;
  padding: 0.35rem 0.6rem;
  font: inherit;
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--input-text);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 0.5rem;
}

.ref-calc input[type="text"]::placeholder {
  color: var(--input-placeholder);
  opacity: 1;
}

.ref-calc input[type="text"]:hover {
  background: var(--input-bg-hover);
  border-color: var(--input-border-hover);
}

.ref-calc input[type="text"]:focus {
  outline: none;
  background: var(--input-bg);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.ref-calc input.ref-calc__invalid,
.ref-calc input.ref-calc__invalid:hover {
  border-color: var(--danger);
}

.ref-calc input.ref-calc__invalid:focus {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-bg);
}

.ref-calc em {
  font-style: normal;
  color: var(--text-tertiary);
}

.ref-calc__switch {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  padding: 0.2rem 0 0.4rem;
}

.ref-calc__switch label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
}

.ref-calc__switch input {
  accent-color: var(--accent);
}

.ref-calc__error {
  margin: 0;
  padding: 0.5rem 0.8rem;
  border-left: 4px solid var(--danger);
  background: var(--danger-bg);
}

.ref-calc table {
  width: 100%;
  border-collapse: collapse;
}

.ref-calc td,
.ref-calc th {
  padding: 0.45rem 0.6rem;
  vertical-align: middle;
  border-bottom: 1px solid var(--border-primary);
}

.ref-calc th {
  font-size: 0.85em;
  font-weight: 600;
  text-align: left;
  color: var(--text-tertiary);
}

.ref-calc__results td:nth-child(3) {
  width: 4rem;
  color: var(--text-tertiary);
}

.ref-calc__checks td:first-child {
  width: 50%;
}

.ref-calc__results td:nth-child(2),
.ref-calc__checks td:nth-child(2),
.ref-calc__checks td:nth-child(3) {
  text-align: right;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.ref-calc__main td {
  font-weight: 700;
  color: var(--accent);
}

.ref-calc__checks td:nth-child(4) {
  text-align: center;
  font-weight: 600;
}

.ref-calc__ok td:nth-child(4) {
  color: var(--success);
  background: var(--success-bg);
}

.ref-calc__bad td:nth-child(4) {
  color: var(--danger);
  background: var(--danger-bg);
}

@media (max-width: 640px) {
  .ref-calc fieldset > label {
    grid-template-columns: 1fr 6rem 2.5rem;
  }

  .ref-calc__checks td:first-child {
    width: auto;
  }
}