/**
 * Layout: sticky nagłówek witryny (`#content-start.sd-site-header`).
 * Wymaga: `sd-design-tokens.css`. Bootstrap (klasy + JS collapse/offcanvas) zostaje — tu tylko pozycjonowanie i nadpisania wizualne scoped po ID.
 */

/* WCAG 2.4.1 — link „pomiń nawigację” (widoczny po :focus) */
.sd-skip-link {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.sd-skip-link:focus,
.sd-skip-link:focus-visible {
  position: fixed;
  left: 0.75rem;
  top: 0.75rem;
  z-index: 100000;
  width: auto;
  height: auto;
  padding: 0.65rem 1.1rem;
  clip: auto;
  overflow: visible;
  background: var(--sd-color-ink);
  color: var(--sd-color-white);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--sd-text-sm);
  border-radius: var(--sd-radius-sm);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.28);
}

/* WCAG 2.5.5 — minimalny cel dotykowy dla ikony wyszukiwania (44×44 CSS px) */
#content-start.sd-site-header .sd-header-search-toggle {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--sd-radius-sm);
  transition: background-color var(--sd-ease), color var(--sd-ease);
}

#content-start.sd-site-header .sd-header-search-toggle:hover,
#content-start.sd-site-header .sd-header-search-toggle:focus-visible {
  background-color: rgba(23, 31, 36, 0.06);
}

@media (prefers-reduced-motion: reduce) {
  #content-start.sd-site-header .sd-header-search-toggle {
    transition: none;
  }
}

/* Fokus klawiatury na linkach menu — spójny zielony pierścień (nad globalnym :focus-visible) */
#content-start.sd-site-header .navbar-nav > li > a:focus-visible {
  outline: 3px solid var(--sd-color-green) !important;
  outline-offset: 3px;
  border-radius: 2px;
}

#content-start.sd-site-header .navbar-brand:focus-visible {
  outline: 3px solid var(--sd-color-green) !important;
  outline-offset: 4px;
  border-radius: 2px;
}

/* Offset pod pasek CTA + widoczność (WOW) + „premium shell” */
#content-start.sd-site-header.navbar,
#content-start.sd-site-header.navbar.fixed-top {
  top: var(--sd-top-cta-height) !important;
  visibility: visible !important;
  opacity: 1 !important;
  min-height: 4rem;
  padding-block: 0.6rem;
  align-items: center;
  border-bottom: 1px solid rgba(23, 31, 36, 0.08);
  box-shadow: 0 4px 22px rgba(15, 35, 22, 0.06);
  background-color: var(--sd-color-white) !important;
}

@supports (backdrop-filter: blur(10px)) {
  #content-start.sd-site-header.navbar,
  #content-start.sd-site-header.navbar.fixed-top {
    background-color: rgba(255, 255, 255, 0.92) !important;
    backdrop-filter: saturate(160%) blur(10px);
    -webkit-backdrop-filter: saturate(160%) blur(10px);
  }
}

/* Wewnętrzny rząd: logo + blok menu (Bootstrap + nasze flex) */
#content-start.sd-site-header .sd-header-inner {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  column-gap: var(--sd-space-sm);
}

body.has-no-top-cta #content-start.sd-site-header.navbar,
body.has-no-top-cta #content-start.sd-site-header.navbar.fixed-top {
  top: 0 !important;
}

#content-start.sd-site-header.wow {
  visibility: visible !important;
  animation-name: none !important;
  opacity: 1 !important;
}

/* Linki w nagłówku — scoped zamiast globalnego `.navbar a` (mniej kolizji z Bootstrap) */
#content-start.sd-site-header a,
#content-start.sd-site-header a:hover,
#content-start.sd-site-header a:focus {
  text-decoration: none !important;
}

#content-start.sd-site-header a {
  font-size: var(--sd-text-sm);
  color: var(--sd-color-ink) !important;
}

/* Desktop ≥992px — fixed bar + układ poziomy w `#navbarNav` (lista + wyszukiwarka) */
@media (min-width: 992px) {
  #content-start.sd-site-header.navbar {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    position: fixed !important;
    top: var(--sd-top-cta-height) !important;
    left: 0 !important;
    right: 0 !important;
    height: auto !important;
    overflow: visible !important;
    z-index: 1000 !important;
  }

  #content-start.sd-site-header #navbarNav {
    display: flex !important;
    flex: 1 1 auto;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.25rem;
  }

  /* Nie rozciągaj bloku menu na całą szerokość collapse — inaczej `ul` rozsuwa linki. */
  #content-start.sd-site-header #navbarNav > .me-nav {
    display: flex;
    align-items: center;
    flex: 0 1 auto;
    min-width: 0;
    margin-left: auto;
    margin-right: 0;
  }

  #content-start.sd-site-header #navbarNav > .me-nav > ul.navbar-nav {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-start;
    gap: 0.05rem;
    width: max-content;
    max-width: 100%;
  }

  #content-start.sd-site-header #navbarNav > .me-nav > ul.navbar-nav > li {
    flex: 0 0 auto;
  }

  /* Ikony social: stały cel dotykowy, bez „szerokiego” paddingu jak u linków tekstowych */
  #content-start.sd-site-header .navbar-nav > li > a.menu-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    min-width: 44px;
    min-height: 44px;
    padding: 0.3rem;
    border-bottom-color: transparent;
  }

  #content-start.sd-site-header .navbar-nav > li > a.menu-social-link:hover,
  #content-start.sd-site-header .navbar-nav > li > a.menu-social-link:focus-visible {
    border-bottom-color: transparent;
  }
}

/* Mobile / tablet: pasek z logo; lista `#navbarNav` ukryta (menu z dolnego paska) */
@media (max-width: 991px) {
  #content-start.sd-site-header.navbar {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    overflow: visible !important;
    position: fixed !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 1040 !important;
  }

  #content-start.sd-site-header #navbarNav {
    display: none !important;
  }
}

@media (max-width: 767px) {
  #content-start.sd-site-header.navbar,
  #content-start.sd-site-header.navbar.fixed-top {
    top: var(--sd-top-cta-height-mobile) !important;
  }
}