/* Reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  font-size: var(--md-sys-typescale-body-large-size);
  line-height: var(--md-sys-typescale-body-large-line-height);
  font-weight: var(--md-sys-typescale-body-large-weight);
  color: var(--md-sys-color-on-surface);
  background: var(--md-sys-color-surface-container-low);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-bottom: calc(var(--bottom-nav-height) + var(--safe-area-bottom));
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--md-sys-color-primary);
  text-decoration: none;
  transition: color var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}

a:hover {
  color: var(--md-sys-color-on-primary-container);
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

/* M3 Typography Scale — заголовки на Golos Text, текст на Inter */
h1, h2, h3, h4, .hero-title, .section-title {
  font-family: var(--font-heading);
}

h1 {
  font-size: var(--md-sys-typescale-display-large-size);
  line-height: var(--md-sys-typescale-display-large-line-height);
  font-weight: var(--md-sys-typescale-display-large-weight);
  letter-spacing: var(--md-sys-typescale-display-large-tracking);
  color: var(--md-sys-color-on-surface);
}

h2 {
  font-size: var(--md-sys-typescale-display-small-size);
  line-height: var(--md-sys-typescale-display-small-line-height);
  font-weight: var(--md-sys-typescale-display-small-weight);
  color: var(--md-sys-color-on-surface);
}

h3 {
  font-size: var(--md-sys-typescale-headline-large-size);
  line-height: var(--md-sys-typescale-headline-large-line-height);
  font-weight: var(--md-sys-typescale-headline-large-weight);
  color: var(--md-sys-color-on-surface);
}

h4 {
  font-size: var(--md-sys-typescale-title-large-size);
  line-height: var(--md-sys-typescale-title-large-line-height);
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
}

h5 {
  font-size: var(--md-sys-typescale-title-medium-size);
  line-height: var(--md-sys-typescale-title-medium-line-height);
  font-weight: var(--md-sys-typescale-title-medium-weight);
  letter-spacing: var(--md-sys-typescale-title-medium-tracking);
  color: var(--md-sys-color-on-surface);
}

h6 {
  font-size: var(--md-sys-typescale-title-small-size);
  line-height: var(--md-sys-typescale-title-small-line-height);
  font-weight: var(--md-sys-typescale-title-small-weight);
  letter-spacing: var(--md-sys-typescale-title-small-tracking);
  color: var(--md-sys-color-on-surface);
}

p {
  font-size: var(--md-sys-typescale-body-large-size);
  line-height: var(--md-sys-typescale-body-large-line-height);
  color: var(--md-sys-color-on-surface);
}

small {
  font-size: var(--md-sys-typescale-body-small-size);
  line-height: var(--md-sys-typescale-body-small-line-height);
}

/* Utility classes */
.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;
}

/* Skip-link — становится видимым при фокусе клавиатурой */
.skip-link {
  position: absolute;
  top: 0;
  left: 0;
  padding: 12px 18px;
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  font-weight: 600;
  border-radius: 0 0 var(--md-sys-shape-corner-medium) 0;
  z-index: 1000;
  transform: translateY(-120%);
  transition: transform var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 3px solid var(--md-sys-color-on-primary);
  outline-offset: -6px;
}

.text-center { text-align: center; }
.text-muted { color: var(--md-sys-color-on-surface-variant); }
.text-soft { color: var(--md-sys-color-on-surface-variant); }
.text-primary { color: var(--md-sys-color-primary); }
.text-error { color: var(--md-sys-color-error); }

/* M3 Focus ring */
:focus-visible {
  outline: 2px solid var(--md-sys-color-primary);
  outline-offset: 2px;
}

/* ============================================
   Scroll animations
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--md-sys-motion-duration-long2) var(--md-sys-motion-easing-emphasized-decelerate),
              transform var(--md-sys-motion-duration-long2) var(--md-sys-motion-easing-emphasized-decelerate);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-load {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp var(--md-sys-motion-duration-long4) var(--md-sys-motion-easing-emphasized-decelerate) 0.2s forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Image zoom on hover */
.image-zoom {
  overflow: hidden;
  border-radius: var(--md-sys-shape-corner-medium);
}

.image-zoom img {
  transition: transform var(--md-sys-motion-duration-medium3) var(--md-sys-motion-easing-emphasized);
}

.image-zoom:hover img {
  transform: scale(1.05);
}

/* Scroll to top button */
.scroll-top {
  position: fixed;
  bottom: calc(var(--bottom-nav-height) + var(--space-md));
  right: var(--space-md);
  width: 48px;
  height: 48px;
  border-radius: var(--md-sys-shape-corner-large);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--md-sys-elevation-level2);
  opacity: 0;
  visibility: hidden;
  transition: all var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
  z-index: 50;
}

.scroll-top .material-symbols-outlined {
  font-size: 24px;
  transform: rotate(-90deg);
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  box-shadow: var(--md-sys-elevation-level3);
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

@media (min-width: 1024px) {
  .scroll-top { bottom: var(--space-lg); right: var(--space-lg); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll,
  .animate-on-load {
    opacity: 1;
    transform: none;
    animation: none;
    transition: none;
  }
  .image-zoom img { transition: none; }
}

/* ============================================
   Material Symbols Outlined Icons
   ============================================ */
.material-symbols-outlined {
  font-family: var(--font-icons);
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'liga';
}

/* Icon size variants */
.material-symbols-outlined.icon-sm { font-size: 20px; }
.material-symbols-outlined.icon-md { font-size: 24px; }
.material-symbols-outlined.icon-lg { font-size: 32px; }
.material-symbols-outlined.icon-xl { font-size: 40px; }

/* Filled variant */
.material-symbols-outlined.icon--filled {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Icon button containers (replaces SVG-based icon containers) */
.icon-container {
  width: 48px;
  height: 48px;
  border-radius: var(--md-sys-shape-corner-medium);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-container--primary {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.icon-container--secondary {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.icon-container--surface {
  background: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface-variant);
}

/* Desktop: remove bottom nav padding */
@media (min-width: 1024px) {
  body {
    padding-bottom: 0;
  }
}

/* ============================================
   Панель доступности (419-ФЗ / ГОСТ Р 52872-2019)
   ============================================ */

/* --- Режимы шрифта ---
   Типографические токены заданы в px, поэтому масштабирование через
   `font-size: %` на :root не работает. Переопределяем конкретные токены
   (body/title/label/headline/display) с множителем.
   large  = ×1.125
   xlarge = ×1.25
*/
:root[data-a11y-font="large"] {
  font-size: 112.5%;

  --md-sys-typescale-display-large-size: clamp(40.5px, 5.625vw + 18px, 64.125px);
  --md-sys-typescale-display-medium-size: clamp(36px, 4.5vw + 15.75px, 50.625px);
  --md-sys-typescale-display-small-size: clamp(31.5px, 3.375vw + 13.5px, 40.5px);

  --md-sys-typescale-headline-large-size: clamp(27px, 2.7vw + 11.25px, 36px);
  --md-sys-typescale-headline-medium-size: clamp(24.75px, 1.8vw + 11.25px, 31.5px);
  --md-sys-typescale-headline-small-size: clamp(22.5px, 1.125vw + 13.5px, 27px);

  --md-sys-typescale-title-large-size: 24.75px;
  --md-sys-typescale-title-large-line-height: 31.5px;
  --md-sys-typescale-title-medium-size: 18px;
  --md-sys-typescale-title-medium-line-height: 27px;
  --md-sys-typescale-title-small-size: 15.75px;
  --md-sys-typescale-title-small-line-height: 22.5px;

  --md-sys-typescale-body-large-size: 18px;
  --md-sys-typescale-body-large-line-height: 27px;
  --md-sys-typescale-body-medium-size: 15.75px;
  --md-sys-typescale-body-medium-line-height: 22.5px;
  --md-sys-typescale-body-small-size: 13.5px;
  --md-sys-typescale-body-small-line-height: 18px;

  --md-sys-typescale-label-large-size: 15.75px;
  --md-sys-typescale-label-large-line-height: 22.5px;
  --md-sys-typescale-label-medium-size: 13.5px;
  --md-sys-typescale-label-medium-line-height: 18px;
  --md-sys-typescale-label-small-size: 12.5px;
  --md-sys-typescale-label-small-line-height: 18px;
}

:root[data-a11y-font="xlarge"] {
  font-size: 125%;

  --md-sys-typescale-display-large-size: clamp(45px, 6.25vw + 20px, 71.25px);
  --md-sys-typescale-display-medium-size: clamp(40px, 5vw + 17.5px, 56.25px);
  --md-sys-typescale-display-small-size: clamp(35px, 3.75vw + 15px, 45px);

  --md-sys-typescale-headline-large-size: clamp(30px, 3vw + 12.5px, 40px);
  --md-sys-typescale-headline-medium-size: clamp(27.5px, 2vw + 12.5px, 35px);
  --md-sys-typescale-headline-small-size: clamp(25px, 1.25vw + 15px, 30px);

  --md-sys-typescale-title-large-size: 27.5px;
  --md-sys-typescale-title-large-line-height: 35px;
  --md-sys-typescale-title-medium-size: 20px;
  --md-sys-typescale-title-medium-line-height: 30px;
  --md-sys-typescale-title-small-size: 17.5px;
  --md-sys-typescale-title-small-line-height: 25px;

  --md-sys-typescale-body-large-size: 20px;
  --md-sys-typescale-body-large-line-height: 30px;
  --md-sys-typescale-body-medium-size: 17.5px;
  --md-sys-typescale-body-medium-line-height: 25px;
  --md-sys-typescale-body-small-size: 15px;
  --md-sys-typescale-body-small-line-height: 20px;

  --md-sys-typescale-label-large-size: 17.5px;
  --md-sys-typescale-label-large-line-height: 25px;
  --md-sys-typescale-label-medium-size: 15px;
  --md-sys-typescale-label-medium-line-height: 20px;
  --md-sys-typescale-label-small-size: 14px;
  --md-sys-typescale-label-small-line-height: 20px;
}

/* --- Контраст: высокий --- */
:root[data-a11y-contrast="high"] {
  --md-sys-color-surface: #000;
  --md-sys-color-surface-container-lowest: #000;
  --md-sys-color-surface-container-low: #0a0a0a;
  --md-sys-color-surface-container: #111;
  --md-sys-color-surface-container-high: #1a1a1a;
  --md-sys-color-surface-container-highest: #222;
  --md-sys-color-surface-dim: #000;
  --md-sys-color-on-surface: #ffff00;
  --md-sys-color-on-surface-variant: #ffff80;
  --md-sys-color-primary: #ffff00;
  --md-sys-color-on-primary: #000;
  --md-sys-color-primary-container: #333300;
  --md-sys-color-on-primary-container: #ffff00;
  --md-sys-color-secondary: #00ffff;
  --md-sys-color-secondary-container: #003333;
  --md-sys-color-on-secondary-container: #00ffff;
  --md-sys-color-outline: #ffff00;
  --md-sys-color-outline-variant: #666;
  --md-sys-color-error: #ff6060;
}

/* --- Контраст: чёрно-белый --- */
:root[data-a11y-contrast="mono"] {
  filter: grayscale(1) contrast(1.1);
}

/* --- Отключение изображений --- */
:root[data-a11y-images="off"] img,
:root[data-a11y-images="off"] picture,
:root[data-a11y-images="off"] .hero-visual,
:root[data-a11y-images="off"] video {
  display: none !important;
}
:root[data-a11y-images="off"] .news-card__image-wrap {
  display: none !important;
}

/* --- FAB-кнопка открытия — ТОЛЬКО на десктопе (на мобильном пункт в drawer) --- */
.a11y-fab {
  display: none;
  position: fixed;
  left: var(--space-lg);
  bottom: var(--space-lg);
  z-index: var(--z-modal);
  align-items: center;
  gap: 8px;
  padding: 0 16px 0 12px;
  height: 44px;
  border: none;
  border-radius: var(--md-sys-shape-corner-full);
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  cursor: pointer;
  box-shadow: var(--md-sys-elevation-level2);
  font-family: var(--font-main);
  font-weight: 600;
  font-size: 13px;
  transition: transform var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-emphasized),
              box-shadow var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}

@media (min-width: 1024px) {
  .a11y-fab { display: inline-flex; }
}

.a11y-fab:hover {
  transform: translateY(-2px);
  box-shadow: var(--md-sys-elevation-level3);
}

.a11y-fab .material-symbols-outlined {
  font-size: 20px;
}

/* --- Панель --- */
.a11y-panel {
  position: fixed;
  left: var(--space-lg);
  bottom: calc(var(--space-lg) + 56px);
  width: min(360px, calc(100vw - 32px));
  max-height: calc(100vh - 180px);
  overflow-y: auto;
  background: var(--md-sys-color-surface-container-low);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-large);
  box-shadow: var(--md-sys-elevation-level4);
  padding: var(--space-md);
  z-index: calc(var(--z-modal) + 1);
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  transform-origin: bottom left;
  transition: opacity var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized),
              transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}

@media (max-width: 1023px) {
  .a11y-panel {
    left: var(--space-md);
    right: var(--space-md);
    width: auto;
    bottom: calc(var(--bottom-nav-height) + var(--safe-area-bottom) + var(--space-lg));
    max-height: calc(100vh - 160px);
    transform-origin: bottom center;
  }
}

.a11y-panel[hidden] { display: none; }

.a11y-panel.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.a11y-panel__header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.a11y-panel__header > .material-symbols-outlined {
  color: var(--md-sys-color-primary);
  font-size: 22px;
}

.a11y-panel__title {
  flex: 1;
  font-weight: 600;
  font-family: var(--font-heading);
  font-size: 16px;
}

.a11y-panel__close {
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  border-radius: var(--md-sys-shape-corner-full);
  cursor: pointer;
  display: grid;
  place-items: center;
  color: var(--md-sys-color-on-surface-variant);
}

.a11y-panel__close:hover {
  background: color-mix(in srgb, var(--md-sys-color-on-surface) 8%, transparent);
}

.a11y-panel__group {
  margin-bottom: var(--space-md);
}

.a11y-panel__label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 8px;
}

.a11y-panel__options {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.a11y-opt {
  flex: 1 1 auto;
  min-width: 72px;
  padding: 8px 12px;
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  color: var(--md-sys-color-on-surface);
  font-family: var(--font-main);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  transition: all var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}

.a11y-opt small {
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
}

.a11y-opt:hover {
  border-color: var(--md-sys-color-primary);
}

.a11y-opt.is-active {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-color: var(--md-sys-color-primary);
}

.a11y-opt.is-active small {
  color: var(--md-sys-color-on-primary-container);
}

.a11y-panel__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--md-sys-color-outline-variant);
}

.a11y-panel__reset {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-corner-full);
  color: var(--md-sys-color-on-surface);
  font-family: var(--font-main);
  font-size: 13px;
  cursor: pointer;
}

.a11y-panel__reset:hover {
  background: color-mix(in srgb, var(--md-sys-color-on-surface) 6%, transparent);
}

.a11y-panel__reset .material-symbols-outlined {
  font-size: 18px;
}

.a11y-panel__note {
  flex: 1;
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
  text-align: right;
}