/* Accessibility — ГОСТ Р 52872-2019 / WCAG 2.1 AA–AAA
   Active when html.is-a11y (+ theme / font / images modifiers). */

.a11y-toggle {
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 40px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(17, 17, 17, 0.88);
  color: #ffffff;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.a11y-toggle svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.a11y-toggle:hover,
.a11y-toggle:focus-visible {
  background: #111111;
  color: #ffffff;
}

.a11y-toggle[aria-pressed="true"] {
  background: rgba(255, 255, 255, 0.72);
  color: #111111;
  box-shadow: inset 0 0 0 1px rgba(17, 17, 17, 0.12);
}

/* ——— Panel ——— */
.a11y-panel {
  display: none;
  width: 100%;
  border-bottom: 3px solid currentColor;
  background: var(--a11y-bg, #ffffff);
  color: var(--a11y-fg, #000000);
  position: relative;
  z-index: 60;
}

html.is-a11y .a11y-panel {
  display: block !important;
}

html.is-a11y .a11y-panel[hidden] {
  display: none !important;
}

/* FOUC: панель с hidden до JS — показать сразу, если настройки не свёрнуты */
html.is-a11y:not(.a11y-js-ready):not(.a11y-panel-collapsed) .a11y-panel[hidden] {
  display: block !important;
}

.a11y-panel-inner {
  padding-block: 0.85rem 1rem;
  display: grid;
  gap: 0.85rem;
}

.a11y-panel-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.12em;
}

.a11y-panel-groups {
  display: grid;
  gap: 0.85rem;
}

.a11y-group {
  display: grid;
  gap: 0.45rem;
}

.a11y-group-label {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.12em;
}

.a11y-group-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.a11y-btn {
  appearance: none;
  min-height: 44px;
  padding: 0.45rem 0.85rem;
  border: 2px solid currentColor;
  border-radius: 2px;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.12em;
  cursor: pointer;
  text-align: left;
}

.a11y-btn[aria-pressed="true"] {
  background: var(--a11y-fg, #000000) !important;
  color: var(--a11y-bg, #ffffff) !important;
}

.a11y-btn-exit {
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.a11y-btn-hide {
  font-weight: 700;
}

.a11y-panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.a11y-btn-swatch {
  min-width: 11rem;
}

/* Свотчи тем всегда показывают целевые цвета, даже под глобальными !important */
html.is-a11y .a11y-swatch-bw,
.a11y-swatch-bw {
  background: #ffffff !important;
  color: #000000 !important;
  border-color: #000000 !important;
}

html.is-a11y .a11y-swatch-wb,
.a11y-swatch-wb {
  background: #000000 !important;
  color: #ffffff !important;
  border-color: #ffffff !important;
}

html.is-a11y .a11y-swatch-blue,
.a11y-swatch-blue {
  background: #9ad0ff !important;
  color: #002b5c !important;
  border-color: #002b5c !important;
}

html.is-a11y .a11y-swatch-bw[aria-pressed="true"],
html.is-a11y .a11y-swatch-wb[aria-pressed="true"],
html.is-a11y .a11y-swatch-blue[aria-pressed="true"],
.a11y-swatch-bw[aria-pressed="true"],
.a11y-swatch-wb[aria-pressed="true"],
.a11y-swatch-blue[aria-pressed="true"] {
  outline: 3px solid #ff0;
  outline-offset: 2px;
}

/* ——— Root tokens when a11y on ——— */
html.is-a11y {
  --a11y-bg: #ffffff;
  --a11y-fg: #000000;
  --a11y-link: #000000;
  --a11y-border: #000000;
  --a11y-focus: #0000ee;
  --a11y-muted: #222222;
  font-size: calc(100% * var(--a11y-font-scale, 1));

  /* Перепривязка дизайн-токенов темы — иначе кремовые/тёмные блоки остаются */
  --bg: var(--a11y-bg);
  --bg-alt: var(--a11y-bg);
  --bg-accent: var(--a11y-bg);
  --bg-ink: var(--a11y-fg);
  --bg-ink-2: var(--a11y-fg);
  --text: var(--a11y-fg);
  --text-2: var(--a11y-muted);
  --text-3: var(--a11y-muted);
  --text-on-ink: var(--a11y-bg);
  --accent: var(--a11y-fg);
  --accent-hover: var(--a11y-fg);
  --accent-soft: var(--a11y-muted);
  --border: var(--a11y-border);
  --on-accent: var(--a11y-bg);
  --shadow: none;
  --lh-body: 1.5;
  --measure: 80ch;
}

html.is-a11y.a11y-theme-bw {
  --a11y-bg: #ffffff;
  --a11y-fg: #000000;
  --a11y-link: #000000;
  --a11y-border: #000000;
  --a11y-focus: #0000ee;
  --a11y-muted: #222222;
}

html.is-a11y.a11y-theme-wb {
  --a11y-bg: #000000;
  --a11y-fg: #ffffff;
  --a11y-link: #ffffff;
  --a11y-border: #ffffff;
  --a11y-focus: #ffff00;
  --a11y-muted: #dddddd;
}

/* Dark blue on light blue — contrast ≥ 7:1 (#002B5C on #9AD0FF ≈ 7.4:1) */
html.is-a11y.a11y-theme-blue {
  --a11y-bg: #9ad0ff;
  --a11y-fg: #002b5c;
  --a11y-link: #001f42;
  --a11y-border: #002b5c;
  --a11y-focus: #8b0000;
  --a11y-muted: #003a7a;
}

html.is-a11y.a11y-font-100 { --a11y-font-scale: 1; }
html.is-a11y.a11y-font-150 { --a11y-font-scale: 1.5; }
html.is-a11y.a11y-font-200 { --a11y-font-scale: 2; }

/* ——— Global a11y body rules ——— */
html.is-a11y body {
  background: var(--a11y-bg) !important;
  color: var(--a11y-fg) !important;
  line-height: 1.5 !important;
  letter-spacing: 0.12em !important;
  text-align: left !important;
}

/* ГОСТ / WCAG: без выравнивания по ширине */
html.is-a11y,
html.is-a11y body,
html.is-a11y p,
html.is-a11y li,
html.is-a11y dd,
html.is-a11y blockquote,
html.is-a11y td,
html.is-a11y th,
html.is-a11y label,
html.is-a11y .lead,
html.is-a11y .prose,
html.is-a11y .muted,
html.is-a11y .small {
  text-align: left !important;
  text-align-last: left !important;
}

html.is-a11y p,
html.is-a11y li,
html.is-a11y dd,
html.is-a11y .lead,
html.is-a11y .prose,
html.is-a11y .device-story-lead,
html.is-a11y .device-page-lead,
html.is-a11y .editorial-hero-note,
html.is-a11y .editorial-heading > p {
  max-width: 80ch;
  line-height: 1.5 !important;
  letter-spacing: 0.12em !important;
}

html.is-a11y h1,
html.is-a11y h2,
html.is-a11y h3,
html.is-a11y h4,
html.is-a11y h5,
html.is-a11y h6 {
  color: var(--a11y-fg) !important;
  line-height: 1.5 !important;
  letter-spacing: 0.12em !important;
  text-align: left !important;
  max-width: 80ch;
}

/* px/clamp-заголовки героя должны расти вместе с rem-шкалой */
html.is-a11y .editorial-hero h1,
html.is-a11y .is-front .editorial-hero h1 {
  font-size: clamp(1.75rem, 4.8vw, 3.25rem) !important;
  letter-spacing: 0.12em !important;
  line-height: 1.5 !important;
  text-shadow: none !important;
}

html.is-a11y a {
  color: var(--a11y-link) !important;
  text-decoration: underline !important;
  text-underline-offset: 0.18em;
}

html.is-a11y a.btn {
  text-decoration: none !important;
}

html.is-a11y .btn,
html.is-a11y button:not(.a11y-toggle):not(.a11y-btn):not(.btn-primary),
html.is-a11y input,
html.is-a11y select,
html.is-a11y textarea {
  background: var(--a11y-bg) !important;
  color: var(--a11y-fg) !important;
  border: 2px solid var(--a11y-border) !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

html.is-a11y .a11y-btn:not(.a11y-btn-swatch) {
  background: var(--a11y-bg) !important;
  color: var(--a11y-fg) !important;
  border: 2px solid var(--a11y-border) !important;
}

html.is-a11y .a11y-btn:not(.a11y-btn-swatch)[aria-pressed="true"] {
  background: var(--a11y-fg) !important;
  color: var(--a11y-bg) !important;
}

html.is-a11y .btn-primary,
html.is-a11y a.btn-primary,
html.is-a11y button.btn-primary,
html.is-a11y .btn.btn-primary,
html.is-a11y a.btn.btn-primary,
html.is-a11y button.btn.btn-primary,
html.is-a11y a.btn-primary:hover,
html.is-a11y button.btn-primary:hover,
html.is-a11y .btn.btn-primary:hover,
html.is-a11y .sticky-cta .btn,
html.is-a11y .sticky-cta .btn-primary,
html.is-a11y .sticky-cta a.btn,
html.is-a11y .sticky-cta a.btn-primary,
html.is-a11y .form .btn-primary,
html.is-a11y form .btn-primary,
html.is-a11y form button.btn-primary {
  background: var(--a11y-fg) !important;
  background-color: var(--a11y-fg) !important;
  background-image: none !important;
  color: var(--a11y-bg) !important;
  border-color: var(--a11y-fg) !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

html.is-a11y .site-header,
html.is-a11y .site-chrome,
html.is-a11y .section,
html.is-a11y .section-alt,
html.is-a11y .section-ink,
html.is-a11y .site-footer,
html.is-a11y .legal-toc-sticky,
html.is-a11y .editorial-section,
html.is-a11y .editorial-results,
html.is-a11y .editorial-reviews,
html.is-a11y .editorial-consultation,
html.is-a11y .editorial-result,
html.is-a11y .editorial-result-pair,
html.is-a11y .editorial-review,
html.is-a11y .editorial-review-open,
html.is-a11y .editorial-review-list,
html.is-a11y .editorial-doctor-photo,
html.is-a11y .tz-results-stage,
html.is-a11y .tz-results-stage .editorial-result,
html.is-a11y .is-front #results,
html.is-a11y .device-story,
html.is-a11y .device-story-pin,
html.is-a11y .device-story-slide,
html.is-a11y .device-page-hero,
html.is-a11y .page-hero,
html.is-a11y .nav-drop-sheet,
html.is-a11y .nav-drop-panel,
html.is-a11y .nav-primary,
html.is-a11y .form,
html.is-a11y form.form,
html.is-a11y .card,
html.is-a11y .service-card,
html.is-a11y .doctor-card,
html.is-a11y .device-card,
html.is-a11y .protocol-card,
html.is-a11y .editorial-dialog,
html.is-a11y dialog.editorial-dialog {
  background: var(--a11y-bg) !important;
  color: var(--a11y-fg) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: none !important;
}

/* Тексты внутри «тёмных»/стеклянных блоков */
html.is-a11y .editorial-reviews h2,
html.is-a11y .editorial-reviews p,
html.is-a11y .editorial-reviews .editorial-kicker,
html.is-a11y .editorial-reviews .editorial-heading > p,
html.is-a11y .editorial-review-title,
html.is-a11y .editorial-review-kicker,
html.is-a11y .editorial-review-caption,
html.is-a11y .editorial-play,
html.is-a11y .editorial-compare-label,
html.is-a11y .tz-result-controls button,
html.is-a11y .section-ink,
html.is-a11y .section-ink * {
  color: var(--a11y-fg) !important;
  text-shadow: none !important;
}

html.is-a11y .editorial-compare-label {
  background: var(--a11y-fg) !important;
  color: var(--a11y-bg) !important;
  border: 2px solid var(--a11y-border) !important;
}

html.is-a11y .editorial-play,
html.is-a11y a.editorial-play,
html.is-a11y button.editorial-play {
  background: var(--a11y-bg) !important;
  background-color: var(--a11y-bg) !important;
  background-image: none !important;
  color: var(--a11y-fg) !important;
  border: 2px solid var(--a11y-border) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: none !important;
}

html.is-a11y .editorial-play svg,
html.is-a11y .editorial-play path {
  fill: var(--a11y-fg) !important;
  stroke: var(--a11y-fg) !important;
}

html.is-a11y .tz-result-controls button {
  background: var(--a11y-bg) !important;
  border: 2px solid var(--a11y-border) !important;
  color: var(--a11y-fg) !important;
}

html.is-a11y .tz-result-controls button[aria-pressed="true"] {
  background: var(--a11y-fg) !important;
  color: var(--a11y-bg) !important;
}

html.is-a11y .site-header {
  border-bottom: 2px solid var(--a11y-border) !important;
  background: var(--a11y-bg) !important;
  box-shadow: none !important;
}

/* Убрать стеклянный ::before — ломает контраст тем */
html.is-a11y .site-header::before,
html.is-a11y body:has(.site-bg-video) .site-header::before {
  display: none !important;
  content: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  background: none !important;
}

html.is-a11y .header-tools {
  background: var(--a11y-bg) !important;
  border: 2px solid var(--a11y-border) !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

html.is-a11y .a11y-toggle {
  background: var(--a11y-fg) !important;
  color: var(--a11y-bg) !important;
}

html.is-a11y .nav-toggle {
  background: var(--a11y-bg) !important;
  border: 2px solid var(--a11y-border) !important;
}

html.is-a11y .nav-toggle span,
html.is-a11y .nav-toggle span::before,
html.is-a11y .nav-toggle span::after {
  background: var(--a11y-fg) !important;
}

/* Логотип читаем на инверсии */
html.is-a11y.a11y-theme-wb .logo-img,
html.is-a11y.a11y-theme-wb .site-header .logo-img {
  filter: invert(1) grayscale(1) contrast(1.05);
}

html.is-a11y .muted,
html.is-a11y .small,
html.is-a11y .lead,
html.is-a11y .disclaimer,
html.is-a11y .footer-title,
html.is-a11y .nav-list a,
html.is-a11y .nav-drop-trigger,
html.is-a11y .editorial-kicker,
html.is-a11y .device-story-tag,
html.is-a11y .breadcrumbs,
html.is-a11y .breadcrumbs a {
  color: var(--a11y-muted) !important;
}

html.is-a11y .site-footer .logo-img {
  filter: none;
}

html.is-a11y .footer-maker-logo:not(.footer-maker-logo--light) {
  display: block;
}

html.is-a11y.a11y-theme-wb .footer-maker-logo:not(.footer-maker-logo--light) {
  display: none;
}

html.is-a11y.a11y-theme-wb .footer-maker-logo--light {
  display: block;
}

html.is-a11y .doctor-reel-track,
html.is-a11y .protocol-gallery-track,
html.is-a11y [data-motion-rail] {
  animation: none !important;
}

html.is-a11y .site-bg-video {
  display: none !important;
}

/* Focus — WCAG 2.4.7 / 2.4.13 */
html.is-a11y a:focus-visible,
html.is-a11y button:focus-visible,
html.is-a11y input:focus-visible,
html.is-a11y select:focus-visible,
html.is-a11y textarea:focus-visible,
html.is-a11y summary:focus-visible,
html.is-a11y [tabindex]:focus-visible,
html.is-a11y .a11y-btn:focus-visible,
html.is-a11y .a11y-toggle:focus-visible {
  outline: 3px solid var(--a11y-focus) !important;
  outline-offset: 3px !important;
}

/* Images off — только в режиме a11y */
html.is-a11y.a11y-images-off img,
html.is-a11y.a11y-images-off picture,
html.is-a11y.a11y-images-off video,
html.is-a11y.a11y-images-off svg:not(.a11y-toggle svg):not(.nav-toggle svg),
html.is-a11y.a11y-images-off .site-bg-video,
html.is-a11y.a11y-images-off .editorial-compare,
html.is-a11y.a11y-images-off .device-story-machine,
html.is-a11y.a11y-images-off .device-page-hero-media {
  display: none !important;
}

/* Логотип и UI-иконки остаются для ориентации */
html.is-a11y.a11y-images-off .logo-img,
html.is-a11y.a11y-images-off .site-header .logo-img,
html.is-a11y.a11y-images-off .footer-maker-logo,
html.is-a11y.a11y-images-off .a11y-toggle svg,
html.is-a11y.a11y-images-off .nav-toggle svg {
  display: inline-block !important;
}

html.is-a11y.a11y-images-off .logo-img {
  display: block !important;
}

/* Images → alt frames */
html.is-a11y.a11y-images-alt img {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

html.is-a11y.a11y-images-alt .a11y-img-frame {
  display: block;
  width: 100%;
  max-width: 80ch;
  min-height: 3rem;
  margin: 0.5rem 0;
  padding: 0.85rem 1rem;
  border: 2px solid var(--a11y-border);
  background: var(--a11y-bg);
  color: var(--a11y-fg);
  position: relative;
  box-sizing: border-box;
}

html.is-a11y.a11y-images-alt .a11y-img-frame-text {
  display: block;
  font-size: 1rem;
  line-height: 1.5;
  letter-spacing: 0.12em;
  text-align: left;
}

/* Kill decorative effects that hurt contrast */
html.is-a11y .device-story-glow,
html.is-a11y .device-story-rings,
html.is-a11y .device-story-spray,
html.is-a11y .nav-drop-backdrop {
  display: none !important;
}

html.is-a11y .sticky-cta,
html.is-a11y .sticky-cta .btn,
html.is-a11y .sticky-cta .btn-primary {
  background: var(--a11y-fg) !important;
  color: var(--a11y-bg) !important;
  border-color: var(--a11y-fg) !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

html.is-a11y .editorial-hero,
html.is-a11y .is-front .editorial-hero {
  background: var(--a11y-bg) !important;
  color: var(--a11y-fg) !important;
  min-height: auto;
}

html.is-a11y .editorial-hero h1,
html.is-a11y .is-front .editorial-hero h1 {
  color: var(--a11y-fg) !important;
  text-shadow: none !important;
}

html.is-a11y .editorial-hero .btn-ghost,
html.is-a11y .btn-ghost {
  color: var(--a11y-fg) !important;
  border-color: var(--a11y-border) !important;
  background: transparent !important;
}

html.is-a11y .editorial-review-open::before,
html.is-a11y .editorial-review-open::after,
html.is-a11y .editorial-result::before,
html.is-a11y .editorial-result::after {
  display: none !important;
  content: none !important;
}

.site-search {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  max-width: 28rem;
}

.site-search input {
  flex: 1;
  min-height: 44px;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.site-footer .site-search {
  max-width: 28rem;
}

.site-footer .site-search input {
  background: #111;
  color: #f3f2ef;
  border-color: #3a3a3a;
}

.site-footer .site-search .btn {
  min-height: 44px;
  padding: 0.55rem 1.15rem;
  color: #f3f2ef;
  border-color: #f3f2ef;
  background: transparent;
  box-shadow: none;
}

.site-footer .site-search .btn:hover {
  background: #f3f2ef;
  color: #111111;
  border-color: #f3f2ef;
}

.site-footer {
  padding-bottom: 2.75rem;
}

/* A11y поверх хардкода футерного поиска */
html.is-a11y .site-search input,
html.is-a11y .site-footer .site-search input,
html.is-a11y .site-footer .site-search .btn {
  background: var(--a11y-bg) !important;
  color: var(--a11y-fg) !important;
  border: 2px solid var(--a11y-border) !important;
}

html.is-a11y .site-footer .site-search .btn:hover {
  background: var(--a11y-fg) !important;
  color: var(--a11y-bg) !important;
}

@media (min-width: 900px) {
  .a11y-panel-groups {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }
}

@media (max-width: 820px) {
  .a11y-toggle {
    width: 40px;
    height: 40px;
    flex-basis: 40px;
  }

  .a11y-btn {
    flex: 1 1 auto;
  }
}