html {
  scroll-padding-top: var(--header-height);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding-top: 0;
  font-family: "Montserrat", "Segoe UI", system-ui, sans-serif;
  background: #040b1e;
  color: var(--text-primary);
}

body.is-lightbox-open {
  overflow: hidden;
}

body.is-menu-open {
  overflow: hidden;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
}

.site-header__inner {
  display: grid;
  grid-template-columns: minmax(120px, auto) 1fr auto;
  align-items: center;
  gap: clamp(12px, 1.5vw, 24px);
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--header-pad-block) clamp(20px, 3vw, 40px);
  min-height: var(--header-height);
  box-sizing: border-box;
}

.logo {
  display: block;
  text-decoration: none;
  flex-shrink: 0;
  line-height: 0;
  justify-self: start;
}

.logo__img {
  display: block;
  width: auto;
  height: var(--header-logo-h);
  max-width: var(--header-logo-max-w);
  filter: drop-shadow(0 0 14px rgba(0, 80, 255, 0.32));
}

.nav {
  justify-self: center;
  min-width: 0;
}

.nav__inner {
  width: 100%;
  min-width: 0;
}

.nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  gap: clamp(22px, 2.6vw, 36px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__item {
  position: relative;
  flex-shrink: 0;
}

.nav__item--menu-cta {
  display: none;
}

.nav__link {
  display: inline-flex;
  align-items: center;
  min-height: var(--header-cta-h);
  padding: 0;
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
  font-size: var(--header-nav-fs);
  font-weight: 600;
  line-height: var(--header-nav-lh);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav__link:not(.nav__link--dropdown-label):hover,
.nav__link:not(.nav__link--dropdown-label):focus-visible {
  color: #0050FF;
}

.nav__link:focus-visible {
  outline: 2px solid var(--logo-teplo);
  outline-offset: 4px;
  border-radius: 2px;
}

.nav__dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  color: rgba(255, 255, 255, 0.92);
  cursor: default;
  transition: color 0.2s ease;
}

.nav__item--dropdown:hover .nav__dropdown-trigger,
.nav__item--dropdown:focus-within .nav__dropdown-trigger {
  color: #0050FF;
}

.nav__item--dropdown .nav__link {
  padding-right: 0;
}

.nav__link--dropdown-label {
  color: inherit;
  cursor: inherit;
  transition: inherit;
}

.nav__link--dropdown-label:hover,
.nav__link--dropdown-label:focus-visible {
  color: inherit;
}

.nav__link--dropdown-label:focus-visible {
  outline: none;
}

@media (min-width: 1025px) and (hover: hover) {
  .nav__item--dropdown::after {
    content: '';
    position: absolute;
    left: -12px;
    right: -12px;
    top: 100%;
    height: 18px;
    z-index: 109;
  }
}

.nav__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: var(--header-cta-h);
  margin: 0;
  padding: 0 0 0 2px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: inherit;
}

.nav__toggle:hover,
.nav__toggle:focus-visible {
  color: inherit;
}

.nav__item--dropdown .nav__dropdown-trigger:focus-within .nav__toggle:focus-visible {
  outline: none;
}

.nav__item--dropdown:focus-within .nav__dropdown-trigger {
  outline: 2px solid var(--logo-teplo);
  outline-offset: 4px;
  border-radius: 2px;
}

.nav__chevron {
  width: 9px;
  height: 5px;
  transition: transform 0.2s ease;
}

.nav__item--dropdown.is-open > .nav__dropdown-trigger .nav__chevron {
  transform: rotate(180deg);
}

@media (min-width: 1025px) and (hover: hover) {
  .nav__item--dropdown:hover > .nav__dropdown-trigger .nav__chevron {
    transform: rotate(180deg);
  }
}

.nav__dropdown {
  position: absolute;
  left: 0;
  top: 100%;
  transform: scale(0.98);
  transform-origin: top left;
  width: max-content;
  min-width: 180px;
  max-width: min(420px, calc(100vw - 40px));
  margin: 0;
  padding: 8px 6px 6px;
  list-style: none;
  background: #0a1020;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
  z-index: 110;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.24s ease,
    visibility 0s linear 0.24s,
    transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav__item--dropdown.is-open .nav__dropdown,
.nav__item--dropdown:hover .nav__dropdown,
.nav__item--dropdown:focus-within .nav__dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: scale(1);
  transition:
    opacity 0.24s ease,
    visibility 0s,
    transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav__dropdown-link {
  display: block;
  padding: 11px 14px;
  border-radius: 4px;
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.35;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: normal;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav__dropdown-link:hover,
.nav__dropdown-link:focus-visible {
  background: rgba(255, 255, 255, 0.06);
  color: #0050FF;
}

.nav__dropdown-link:focus-visible {
  outline: 2px solid var(--logo-teplo);
  outline-offset: 0;
}

.nav__dropdown-group {
  list-style: none;
}

.nav__dropdown-row {
  display: flex;
  align-items: stretch;
}

.nav__dropdown-link--parent {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.nav__dropdown-link__arrow {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  color: rgba(255, 255, 255, 0.45);
  transition: color 0.15s ease, transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav__dropdown-link--parent:is(:hover, :focus-visible) .nav__dropdown-link__arrow,
.nav__dropdown-group.is-sub-open .nav__dropdown-link__arrow {
  color: #0050FF;
  transform: translateX(2px);
}

.nav__sub-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  flex-shrink: 0;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.nav__sub-toggle:is(:hover, :focus-visible) {
  color: #0050FF;
  background: rgba(255, 255, 255, 0.06);
}

.nav__sub-toggle:focus-visible {
  outline: 2px solid var(--logo-teplo);
  outline-offset: 0;
}

.nav__dropdown-group.is-sub-open .nav__chevron--sub {
  transform: rotate(180deg);
}

.nav__dropdown-sub {
  margin: 0;
  padding: 0 0 0 10px;
  list-style: none;
  border-left: 1px solid transparent;
  overflow: hidden;
  clip-path: inset(0 0 100% 0);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-14px);
  transform-origin: left center;
  transition:
    clip-path 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.24s ease,
    visibility 0s linear 0.32s,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    padding 0.28s ease,
    border-color 0.28s ease;
}

.nav__dropdown-group.is-sub-open > .nav__dropdown-sub {
  clip-path: inset(0 0 0 0);
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
  padding-top: 2px;
  padding-bottom: 2px;
  border-left-color: rgba(255, 255, 255, 0.15);
  transition:
    clip-path 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.24s ease,
    visibility 0s,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    padding 0.28s ease,
    border-color 0.28s ease;
}

.nav__dropdown-group--nested > .nav__dropdown-sub {
  padding-left: 14px;
}

.nav__dropdown--products {
  left: 0;
  transform: scale(0.98);
  transform-origin: top left;
  width: max-content;
  max-width: min(760px, 96vw);
  min-width: min(280px, 96vw);
  padding: 8px;
  box-sizing: border-box;
  overflow: hidden;
}

.nav__dropdown--products > li:first-child {
  width: 100%;
}

.nav__item--dropdown.is-open .nav__dropdown--products,
.nav__item--dropdown:hover .nav__dropdown--products,
.nav__item--dropdown:focus-within .nav__dropdown--products {
  transform: scale(1);
  transition:
    opacity 0.24s ease,
    visibility 0s,
    transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav__dropdown--products > li {
  list-style: none;
}

.products-nav {
  display: flex;
  align-items: flex-start;
  width: 100%;
  min-width: 0;
  overflow: hidden;
}

.products-nav__row {
  display: flex;
  gap: 2px;
  width: 100%;
}

.products-nav__cat {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  flex: 1;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: normal;
}

.products-nav__cat:is(:hover, :focus-visible, .is-active) {
  background: rgba(255, 255, 255, 0.06);
  color: #0050FF;
}

.products-nav__cat:is(span) {
  cursor: default;
}

.products-nav__chevron {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  margin-top: 0.2em;
  color: rgba(255, 255, 255, 0.45);
  transition: color 0.15s ease, transform 0.15s ease;
}

.products-nav__cat:is(:hover, :focus-visible, .is-active) .products-nav__chevron {
  color: #0050FF;
  transform: translateX(2px);
}

.products-nav__toggle {
  display: none;
}

.products-nav__panels {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.products-nav__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.products-nav__link {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  font-size: 0.8125rem;
  line-height: 1.45;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: normal;
}

.products-nav__link-tail {
  display: block;
}

.nav__chevron--sub {
  transform: rotate(-90deg);
  transition: transform 0.2s ease;
}

@media (min-width: 1025px) {
  .products-nav__cats {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1 1 auto;
    min-width: 0;
    width: 100%;
    transition: padding-right 0.28s ease, border-color 0.28s ease;
    border-right: 1px solid transparent;
  }

  .products-nav__cat--solo {
    white-space: normal;
  }

  .products-nav.is-expanded .products-nav__cats {
    flex: 0 0 auto;
    width: auto;
    min-width: max-content;
    padding-right: 12px;
    border-right-color: rgba(255, 255, 255, 0.12);
  }

  .products-nav__panels {
    display: grid;
    grid-template-areas: "stack";
    align-content: start;
    flex: 0 0 0;
    width: 0;
    min-width: 0;
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    padding-left: 0;
    overflow: hidden;
    transform: translateX(-16px) scale(0.98);
    transform-origin: left center;
    transition:
      width 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      flex-basis 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      opacity 0.24s ease,
      visibility 0s linear 0.32s,
      padding-left 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .products-nav:not(.is-expanded) .products-nav__panels {
    transform: none;
  }

  .products-nav:not(.is-expanded) .products-nav__list {
    transform: none;
  }

  .products-nav.is-expanded .products-nav__panels {
    flex: 0 0 var(--products-panel-width);
    width: var(--products-panel-width);
    max-height: min(70vh, 520px);
    opacity: 1;
    visibility: visible;
    padding-left: 14px;
    transform: translateX(0) scale(1);
    overflow-x: hidden;
    overflow-y: auto;
    transition:
      width 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      flex-basis 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      opacity 0.24s ease,
      visibility 0s,
      padding-left 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .products-nav__list {
    grid-area: stack;
    align-self: start;
    width: var(--products-panel-width);
    min-width: var(--products-panel-width);
    box-sizing: border-box;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-14px);
    transition:
      opacity 0.24s ease,
      visibility 0s linear 0.24s,
      transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .products-nav__list.is-active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
    transition:
      opacity 0.24s ease,
      visibility 0s,
      transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .products-nav__list:not(.is-active) {
    transform: none;
  }
}

@media (max-width: 1024px) {
  .nav__dropdown--products {
    width: 100%;
    max-width: none;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
  }

  .products-nav {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
    overflow: visible;
  }

  .products-nav__cats {
    display: flex;
    flex-direction: column;
    gap: var(--mobile-nav-item-gap);
    width: 100%;
  }

  .products-nav__group {
    display: flex;
    flex-direction: column;
    gap: var(--mobile-nav-item-gap);
    width: 100%;
    min-width: 0;
  }

  .products-nav__group .products-nav__list > li {
    width: 100%;
    min-width: 0;
  }

  .products-nav__row {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    min-height: var(--mobile-nav-row-h);
    margin: 0;
    padding: 10px 0 10px var(--mobile-nav-row-pad-left);
    box-sizing: border-box;
    border-radius: 8px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    transition:
      background 0.15s ease,
      transform 0.12s ease;
  }

  .products-nav__row:active {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(0.99);
  }

  .products-nav__row.is-open {
    background: rgba(0, 80, 255, 0.08);
  }

  .products-nav__cat {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
    padding: 0;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.35;
    white-space: normal;
    pointer-events: none;
    background: transparent;
  }

  .products-nav__cat:is(:hover, :focus-visible, .is-active) {
    background: transparent;
    color: inherit;
  }

  .products-nav__row.is-open .products-nav__cat {
    color: #0050FF;
  }

  .products-nav__chevron {
    display: none;
  }

  .products-nav__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 var(--mobile-nav-chevron, 28px);
    width: var(--mobile-nav-chevron, 28px);
    height: var(--mobile-nav-chevron, 28px);
    border: none;
    border-radius: 4px;
    background: transparent;
    color: rgba(255, 255, 255, 0.55);
    cursor: pointer;
    pointer-events: none;
  }

  .products-nav__row.is-open .products-nav__toggle {
    color: #0050FF;
  }

  .products-nav__row--solo .products-nav__cat {
    pointer-events: auto;
  }

  .products-nav__toggle .nav__chevron--sub {
    transform: none;
  }

  .products-nav__row.is-open .nav__chevron--sub {
    transform: rotate(180deg);
  }

  .products-nav__group .products-nav__list {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    margin: 0;
    padding-top: 0;
    padding-bottom: 0;
    padding-left: var(--mobile-nav-sub-indent);
    border-left: 1px solid transparent;
    transform: translateX(calc(-1 * var(--mobile-nav-sub-indent)));
    transform-origin: left center;
    transition:
      max-height 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      opacity 0.24s ease,
      visibility 0s linear 0.32s,
      transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
      margin 0.28s ease,
      padding-top 0.28s ease,
      padding-bottom 0.28s ease,
      border-color 0.28s ease;
  }

  .products-nav__group .products-nav__list.is-active {
    max-height: min(60vh, 640px);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
    margin: 0;
    padding-top: 0;
    padding-bottom: 0;
    border-left-color: rgba(255, 255, 255, 0.15);
    overflow-x: visible;
    overflow-y: auto;
    transition:
      max-height 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      opacity 0.24s ease,
      visibility 0s,
      transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
      margin 0.28s ease,
      padding-top 0.28s ease,
      padding-bottom 0.28s ease,
      border-color 0.28s ease;
  }

  .nav__chevron--sub {
    transition: transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .site-header--menu-open .products-nav__link.nav__dropdown-link {
    display: block;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    min-height: 0;
    padding: 10px 0 10px var(--mobile-nav-sub-indent);
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: normal;
    box-sizing: border-box;
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1.4;
    -webkit-tap-highlight-color: transparent;
    transition: background 0.15s ease, color 0.15s ease;
  }

  .site-header--menu-open .products-nav__link.nav__dropdown-link:active {
    background: rgba(255, 255, 255, 0.12);
  }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.5vw, 20px);
  flex-shrink: 0;
  justify-self: end;
  min-height: var(--header-cta-h);
  padding-left: clamp(12px, 1.5vw, 24px);
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: var(--header-cta-h);
  padding: 0;
  text-decoration: none;
  color: #fff;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.header-phone:hover {
  color: #0050FF;
}

.header-phone:hover .header-phone__icon {
  color: #0050FF;
}

.header-phone__icon {
  width: var(--header-phone-icon);
  height: var(--header-phone-icon);
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.2s ease;
}

.header-phone__number {
  font-size: var(--header-phone-fs);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  line-height: var(--header-nav-lh);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--header-cta-h);
  padding: 0 var(--header-cta-px);
  border: none;
  font-size: var(--header-cta-fs);
  line-height: 1.2;
  border-radius: 6px;
  background: var(--accent-blue);
  color: #fff;
  font-family: inherit;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  will-change: transform;
  transform: translateY(0);
  box-shadow:
    0 0 0 1px rgba(0, 80, 255, 0.25),
    0 10px 28px rgba(0, 0, 0, 0.22);
  transition:
    background 0.18s ease,
    transform 0.18s ease,
    box-shadow 0.18s ease,
    filter 0.18s ease;
}

.btn-cta:hover {
  background: var(--accent-blue-hover);
  transform: translateY(-1px);
  filter: saturate(1.06);
  box-shadow:
    0 0 0 1px rgba(0, 80, 255, 0.42),
    0 14px 40px rgba(0, 80, 255, 0.22),
    0 10px 28px rgba(0, 0, 0, 0.24);
}

.btn-cta:active {
  transform: translateY(0);
  box-shadow:
    0 0 0 1px rgba(0, 80, 255, 0.35),
    0 8px 22px rgba(0, 0, 0, 0.24);
}

.btn-cta:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .btn-cta {
    transition: none;
    transform: none;
  }

  .btn-cta:hover {
    transform: none;
    filter: none;
  }
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  transform: translateY(0);
  box-shadow: 0 0 0 rgba(255, 255, 255, 0);
  transition:
    background 0.2s ease,
    transform 0.18s ease,
    box-shadow 0.18s ease,
    filter 0.18s ease;
  filter: saturate(1);
}

.burger:hover,
.burger:active,
.burger:focus-visible {
  background: transparent;
  transform: none;
  filter: none;
  box-shadow: none;
}

.burger:focus-visible {
  outline: 2px solid var(--logo-teplo);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .burger {
    transition: none;
  }
}

.burger span {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

@media (max-width: 1280px) {
  :root {
    --header-logo-h: 58px;
    --header-nav-fs: 0.8125rem;
    --header-phone-fs: 0.875rem;
    --header-cta-px: 22px;
  }
}

@media (max-width: 1100px) {
  .header-actions {
    padding-left: 16px;
  }
}

@media (min-width: 1025px) and (max-width: 1200px) {
  :root {
    --header-logo-h: 54px;
    --header-nav-fs: 0.8125rem;
    --header-cta-px: 18px;
  }

  .site-header__inner {
    gap: clamp(12px, 1.8vw, 20px);
  }

  .header-phone__number {
    display: none;
  }
}

@media (max-width: 1024px) {
  .site-header {
    --mobile-header-pad-x: clamp(20px, 3vw, 40px);
    --mobile-burger-size: 44px;
    --mobile-nav-chevron: 28px;
    --mobile-nav-row-pad-left: 8px;
    --mobile-nav-sub-indent: 8px;
    --mobile-nav-item-gap: 6px;
    --mobile-nav-row-h: 48px;
  }

  .site-header__inner {
    padding-inline: var(--mobile-header-pad-x) 0;
  }

  .nav {
    display: none;
    justify-self: auto;
  }

  .nav__list {
    justify-content: flex-start;
  }

  .burger {
    display: flex;
    flex-shrink: 0;
    width: var(--mobile-burger-size);
    height: var(--mobile-burger-size);
    margin-right: 0;
  }

  .header-actions {
    border-left: none;
    padding-left: 0;
    padding-right: 0;
    margin-left: auto;
    margin-right: 0;
  }

  .site-header--menu-open .nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    inset: var(--header-height) 0 0 0;
    z-index: 99;
    width: 100%;
    max-width: none;
    margin: 0;
    justify-self: auto;
    overflow-y: auto;
    overflow-x: hidden;
    box-sizing: border-box;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
    padding: 0;
    background: var(--header-bg-solid);
    border-top: 1px solid var(--header-border);
    --mobile-nav-fs: 1.0625rem;
    --mobile-nav-row-h: 48px;
    --mobile-nav-chevron-w: 14px;
    --mobile-nav-chevron-h: 8px;
  }

  .site-header--menu-open .nav__inner {
    width: 100%;
    max-width: 1440px;
    margin-inline: auto;
    padding: 24px 20px 40px var(--mobile-header-pad-x);
    box-sizing: border-box;
  }

  .site-header--menu-open .nav__list {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: var(--mobile-nav-item-gap);
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
  }

  .site-header--menu-open .nav__item {
    display: flex;
    flex-direction: column;
    width: 100%;
    flex-shrink: 0;
  }

  .site-header--menu-open .nav__item > .nav__link {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: var(--mobile-nav-row-h);
    margin: 0;
    padding: 0 0 0 var(--mobile-nav-row-pad-left);
    border-radius: 8px;
    font-size: var(--mobile-nav-fs);
    font-weight: 600;
    line-height: var(--header-nav-lh);
    letter-spacing: 0.02em;
    -webkit-tap-highlight-color: transparent;
    transition:
      background 0.15s ease,
      color 0.2s ease,
      transform 0.12s ease;
  }

  .site-header--menu-open .nav__item > .nav__link:active {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(0.99);
  }

  .site-header--menu-open .nav__dropdown-trigger {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    width: 100%;
    min-height: var(--mobile-nav-row-h);
    margin: 0;
    padding: 0 0 0 var(--mobile-nav-row-pad-left);
    border-radius: 8px;
    font-size: var(--mobile-nav-fs);
    font-weight: 600;
    line-height: var(--header-nav-lh);
    letter-spacing: 0.02em;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    transition:
      background 0.15s ease,
      color 0.2s ease,
      transform 0.12s ease;
  }

  .site-header--menu-open .nav__link--dropdown-label {
    flex: 1;
    min-width: 0;
    font-size: inherit;
    font-weight: inherit;
    line-height: inherit;
    letter-spacing: inherit;
    text-align: left;
  }

  .site-header--menu-open .nav__chevron,
  .site-header--menu-open .nav__chevron--sub {
    width: var(--mobile-nav-chevron-w);
    height: var(--mobile-nav-chevron-h);
  }

  .site-header--menu-open .nav__dropdown-trigger:active {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(0.99);
  }

  .site-header--menu-open .nav__item--dropdown.is-open > .nav__dropdown-trigger {
    color: #0050FF;
    background: rgba(0, 80, 255, 0.08);
  }

  .site-header--menu-open .nav__item--dropdown:not(.is-open) > .nav__dropdown-trigger .nav__chevron {
    transform: none;
  }

  .site-header--menu-open .nav__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 var(--mobile-nav-chevron);
    width: var(--mobile-nav-chevron);
    height: var(--mobile-nav-chevron);
    margin: 0;
    padding: 0;
    pointer-events: none;
  }

  .site-header--menu-open .nav__dropdown {
    position: static;
    transform: none;
    min-width: 0;
    margin: 0;
    padding: var(--mobile-nav-item-gap) 0 0 var(--mobile-nav-sub-indent);
    background: transparent;
    border: none;
    border-left: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 0;
    box-shadow: none;
  }

  .site-header--menu-open .nav__dropdown--products,
  .site-header--menu-open .nav__item--dropdown.is-open .nav__dropdown--products {
    margin: 0;
    padding: var(--mobile-nav-item-gap) 0 0 var(--mobile-nav-sub-indent);
    border-left: 1px solid rgba(255, 255, 255, 0.15);
  }

  .site-header--menu-open .nav__dropdown {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    margin-top: 0;
    margin-bottom: 0;
    padding-top: 0;
    padding-bottom: 0;
    transition:
      max-height 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      opacity 0.22s ease,
      visibility 0s linear 0.32s,
      margin 0.28s ease,
      padding 0.28s ease;
  }

  .site-header--menu-open .nav__item--dropdown.is-open .nav__dropdown {
    max-height: min(80vh, 900px);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    margin: 0;
    padding: var(--mobile-nav-item-gap) 0 0 var(--mobile-nav-sub-indent);
    transition:
      max-height 0.32s cubic-bezier(0.22, 1, 0.36, 1),
      opacity 0.22s ease,
      visibility 0s,
      margin 0.28s ease,
      padding 0.28s ease;
  }

  .site-header--menu-open .nav__item--dropdown:hover .nav__dropdown {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .site-header--menu-open .nav__item--dropdown.is-open:hover .nav__dropdown,
  .site-header--menu-open .nav__item--dropdown.is-open:focus-within .nav__dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .site-header--menu-open .nav__dropdown-link:not(.products-nav__cat):not(.products-nav__link) {
    display: flex;
    align-items: flex-start;
    width: 100%;
    min-height: 44px;
    padding: 10px 0 10px var(--mobile-nav-sub-indent);
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: normal;
    font-size: 0.9375rem;
    -webkit-tap-highlight-color: transparent;
    transition: background 0.15s ease, color 0.15s ease, transform 0.12s ease;
  }

  .site-header--menu-open .nav__dropdown-link:not(.products-nav__cat):not(.products-nav__link):active {
    background: rgba(255, 255, 255, 0.12);
    transform: scale(0.99);
  }

  .site-header--menu-open .products-nav__cat.nav__dropdown-link {
    min-height: 0;
    padding: 0;
    width: auto;
    border-radius: 0;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.35;
  }

  .site-header--menu-open .burger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header--menu-open .burger span:nth-child(2) {
    opacity: 0;
  }

  .site-header--menu-open .burger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-header--menu-open .nav *::selection {
    background: transparent;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 80px;
    --header-pad-block: 0;
    --header-logo-h: 48px;
    --header-logo-max-w: 220px;
    --header-cta-h: 38px;
    --header-cta-fs: 0.8125rem;
    --header-cta-px: 16px;
  }

  .site-header__inner {
    gap: 12px;
  }

  .header-phone__number {
    display: none;
  }

  .header-actions {
    gap: 10px;
  }
  .site-header--menu-open .nav__item--menu-cta {
    display: none;
  }
}

@media (max-width: 400px) {
  .header-actions .btn-cta {
    display: none;
  }

  .site-header--menu-open .nav__item--menu-cta {
    display: list-item;
    margin-top: 10px;
    padding-top: 10px;
  }

  .site-header--menu-open .nav__menu-cta {
    display: flex;
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav__dropdown,
  .nav__dropdown-sub,
  .products-nav__list,
  .products-nav__cats,
  .nav__chevron,
  .nav__chevron--sub,
  .nav__dropdown-link__arrow,
  .site-header--menu-open .nav__dropdown {
    transition: none;
  }

  .nav__dropdown,
  .nav__dropdown-sub,
  .products-nav__list {
    transform: none;
    clip-path: none;
  }
}