/* Навигация в существующей палитре, без изменения высоты шапки. */
:root {
  --header-height: 106px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

.site-header-shell {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-background);
}

.skip-link {
  z-index: 30;
}

.site-menu__panel,
.site-navigation {
  display: flex;
  align-items: center;
}

.site-menu__panel {
  gap: 40px;
}

.site-navigation {
  gap: 24px;
}

.site-navigation a {
  display: flex;
  align-items: center;
  min-height: 44px;
  min-width: 44px;
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  transition: color 180ms ease;
}

.menu-toggle {
  display: none;
  -webkit-tap-highlight-color: transparent;
}

.menu-toggle:focus-visible,
.site-navigation a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

@media (hover: hover) {
  .site-navigation a:hover {
    color: var(--color-accent);
  }
}

@media (min-width: 1101px) and (max-width: 1320px) {
  .site-menu__panel {
    gap: 28px;
  }

  .site-menu .header-contacts {
    gap: 8px;
  }

  .site-menu .contact-link__label {
    display: none;
  }
}

@media (max-width: 1100px) {
  .menu-toggle {
    display: flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    color: var(--color-accent);
    cursor: pointer;
    list-style: none;
  }

  .menu-toggle::-webkit-details-marker {
    display: none;
  }

  .menu-toggle__icon {
    position: relative;
    width: 18px;
    height: 12px;
    border-block: 1px solid currentColor;
  }

  .menu-toggle__icon::before,
  .menu-toggle__icon::after {
    content: "";
    position: absolute;
    top: 4.5px;
    left: 0;
    width: 18px;
    height: 1px;
    background: currentColor;
  }

  .site-menu[open] .menu-toggle__icon {
    border-color: transparent;
  }

  .site-menu[open] .menu-toggle__icon::before {
    transform: rotate(45deg);
  }

  .site-menu[open] .menu-toggle__icon::after {
    transform: rotate(-45deg);
  }

  .site-menu__panel {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: block;
    max-height: calc(100dvh - var(--header-height));
    overflow-y: auto;
    padding: 8px var(--page-gutter) 20px;
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
  }

  .site-navigation {
    align-items: stretch;
    flex-direction: column;
    gap: 0;
  }

  .site-navigation a {
    min-height: 50px;
    font-size: 15px;
    border-bottom: 1px solid var(--color-border);
  }

  .site-menu .header-contacts {
    flex-wrap: wrap;
    gap: 4px 24px;
    margin-top: 16px;
  }

  .site-menu .contact-link {
    width: auto;
    border: 0;
  }

  .site-menu .contact-link__label {
    display: inline;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 92px;
  }
}

@media (max-width: 600px) {
  :root {
    --header-height: 84px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}