/* IVD Hausservice – moderner öffentlicher Header
   Stand: 2026-08-02
   Ziel: klare Trennung aus Utility-Leiste, Logo, Hauptnavigation und primärer Aktion.
   Der öffentliche Header wechselt frühzeitig in ein übersichtliches Menü und kann
   deshalb weder das Logo noch andere Funktionen überlagern. */

.site-nav-backdrop {
  display: none;
}

.menu-toggle {
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 44px;
  padding: 9px 13px;
  line-height: 1;
  cursor: pointer;
}

.menu-toggle-bars {
  display: inline-flex;
  width: 22px;
  height: 18px;
  flex: 0 0 auto;
  flex-direction: column;
  justify-content: space-between;
}

.menu-toggle-bars > span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transform-origin: center;
  transition: transform .2s ease, opacity .2s ease;
}

.menu-toggle-text {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .01em;
}

.site-header.nav-is-open .menu-toggle-bars > span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.site-header.nav-is-open .menu-toggle-bars > span:nth-child(2) {
  opacity: 0;
}

.site-header.nav-is-open .menu-toggle-bars > span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Die Login-Funktionen gehören in die obere Utility-Leiste. Dadurch werden sie
   nicht doppelt in die Hauptnavigation gedrängt, bleiben aber stets erreichbar. */
.topbar .topbar-right.login-status-area a {
  margin-left: 0;
  padding: 5px 10px;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  transition: background .18s ease, border-color .18s ease;
}

.topbar .topbar-right.login-status-area a:hover,
.topbar .topbar-right.login-status-area a:focus-visible {
  background: rgba(255,255,255,.18);
  border-color: rgba(255,255,255,.48);
  text-decoration: none;
}

@media (min-width: 1201px) {
  .topbar .topbar-right.login-status-area {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
  }

}

.site-header.public-header-mode {
  isolation: isolate;
}

.site-header.public-header-mode .nav {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(170px, 200px) minmax(0, 1fr);
  align-items: center;
  justify-content: stretch;
  min-height: 88px;
  gap: clamp(22px, 2.2vw, 36px);
  flex-wrap: nowrap;
  max-width: 1600px;
}

.site-header.public-header-mode .brand.image-brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  flex: 0 0 auto;
}

.site-header.public-header-mode .brand.image-brand img {
  display: block;
  width: clamp(170px, 12vw, 198px);
  max-width: 100%;
  max-height: 72px;
  height: auto !important;
  object-fit: contain;
}

.site-header.public-header-mode .menu-toggle {
  display: none;
}

.site-header.public-header-mode .main-nav.public-nav {
  position: static;
  inset: auto;
  display: flex !important;
  flex: 1 1 auto;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  flex-direction: row;
  flex-wrap: nowrap;
  gap: clamp(12px, 1.2vw, 20px);
  padding: 0;
  border: 0;
  box-shadow: none;
  background: transparent;
  transform: none;
}

.site-header.public-header-mode .public-nav-primary,
.site-header.public-header-mode .public-nav-actions {
  display: flex;
  align-items: center;
  min-width: 0;
}

.site-header.public-header-mode .public-nav-primary {
  justify-content: flex-end;
  gap: clamp(4px, .55vw, 10px);
}

.site-header.public-header-mode .public-nav-actions {
  flex: 0 0 auto;
}

.site-header.public-header-mode .main-nav.public-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: auto;
  min-height: 42px;
  padding: 9px clamp(6px, .6vw, 10px) !important;
  border: 0;
  border-radius: 9px;
  color: var(--ink);
  font-size: clamp(13px, .9vw, 15px);
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s ease, background .18s ease, transform .18s ease;
}

.site-header.public-header-mode .main-nav.public-nav .public-nav-primary a:hover,
.site-header.public-header-mode .main-nav.public-nav .public-nav-primary a:focus-visible,
.site-header.public-header-mode .main-nav.public-nav .public-nav-primary a.active {
  color: var(--blue-800);
  background: #eef5ff;
}

.site-header.public-header-mode .main-nav.public-nav .public-nav-primary a.active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 3px;
  height: 2px;
  border-radius: 999px;
  background: var(--blue-700);
}

.site-header.public-header-mode .main-nav.public-nav .nav-cta {
  min-height: 46px;
  padding: 12px clamp(15px, 1.2vw, 21px) !important;
  border-radius: 10px;
  font-size: clamp(13px, .92vw, 15px);
  box-shadow: 0 10px 24px rgba(0,74,173,.2);
}

.site-header.public-header-mode .main-nav.public-nav .nav-cta:hover,
.site-header.public-header-mode .main-nav.public-nav .nav-cta:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(0,74,173,.26);
}

.site-header.public-header-mode a:focus-visible,
.site-header.public-header-mode button:focus-visible {
  outline: 3px solid rgba(13,115,223,.28);
  outline-offset: 3px;
}

/* Sicherheitsregel: Die Navigation darf niemals in den reservierten Logo-Bereich
   hineinragen. Auf großen Bildschirmen erhält der Header mehr Breite; sobald der
   Platz nicht sicher ausreicht, wird frühzeitig auf das kompakte Menü gewechselt. */
.site-header.public-header-mode .brand.image-brand,
.site-header.public-header-mode .main-nav.public-nav {
  position: relative;
}

.site-header.public-header-mode .brand.image-brand {
  z-index: 2;
  overflow: hidden;
}

.site-header.public-header-mode .main-nav.public-nav {
  z-index: 1;
  overflow: visible;
}

/* Ab mittlerem Desktop/kleinem Notebook wird nicht weiter gequetscht. Stattdessen
   öffnet sich eine übersichtliche, scrollbar begrenzte Navigation unter dem Header. */
@media (max-width: 1520px) {
  .site-header.public-header-mode .nav {
    display: flex;
    min-height: 82px;
    justify-content: space-between;
    gap: 18px;
  }

  .site-header.public-header-mode .brand.image-brand img {
    width: clamp(164px, 30vw, 215px);
    max-width: min(58vw, 215px);
    max-height: 66px;
  }

  .site-header.public-header-mode .menu-toggle {
    display: inline-flex;
    flex: 0 0 auto;
    border-color: #cbdcf1;
    background: #f7faff;
    color: var(--blue-900);
    box-shadow: 0 5px 16px rgba(7,27,58,.08);
  }

  .site-header.public-header-mode .main-nav.public-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 50%;
    right: auto;
    z-index: 4;
    display: none !important;
    width: min(720px, calc(100vw - 24px));
    max-height: calc(100vh - 132px);
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateX(-50%);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 14px;
    padding: 18px;
    border: 1px solid #d9e6f5;
    border-top: 0;
    border-radius: 0 0 18px 18px;
    background: rgba(255,255,255,.985);
    box-shadow: 0 24px 55px rgba(7,27,58,.2);
    backdrop-filter: blur(14px);
  }

  .site-header.public-header-mode .main-nav.public-nav.open {
    display: flex !important;
  }

  .site-header.public-header-mode .public-nav-primary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: 100%;
  }

  .site-header.public-header-mode .public-nav-actions {
    display: grid;
    width: 100%;
  }

  .site-header.public-header-mode .main-nav.public-nav a,
  .site-header.public-header-mode .main-nav.public-nav .nav-cta {
    width: 100%;
    min-height: 46px;
    padding: 12px 14px !important;
    border: 1px solid #e0eaf6;
    border-radius: 10px;
    background: #f8fbff;
    font-size: 14px;
    justify-content: flex-start;
    text-align: left;
    box-shadow: none;
  }

  .site-header.public-header-mode .main-nav.public-nav .public-nav-primary a.active::after {
    left: 10px;
    right: auto;
    top: 10px;
    bottom: 10px;
    width: 3px;
    height: auto;
  }

  .site-header.public-header-mode .main-nav.public-nav .nav-cta {
    justify-content: center;
    border-color: transparent;
    background: linear-gradient(135deg,var(--blue-800),var(--blue-600));
    color: #fff;
    font-weight: 850;
  }

  .site-header.public-header-mode .site-nav-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    background: rgba(7,27,58,.38);
    cursor: default;
  }

  .site-header.public-header-mode.nav-is-open .site-nav-backdrop {
    display: block;
  }

  body.site-nav-open {
    overflow: hidden;
  }
}

@media (max-width: 680px) {
  .site-header.public-header-mode .nav {
    min-height: 74px;
  }

  .site-header.public-header-mode .brand.image-brand img {
    width: clamp(146px, 55vw, 190px);
    max-width: 62vw;
    max-height: 58px;
  }

  .site-header.public-header-mode .menu-toggle {
    min-height: 42px;
    padding: 8px 11px;
  }

  .site-header.public-header-mode .main-nav.public-nav {
    width: 100vw;
    max-height: calc(100vh - 112px);
    padding: 14px 16px 18px;
    border-left: 0;
    border-right: 0;
    border-radius: 0 0 16px 16px;
  }
}

@media (max-width: 560px) {
  .site-header.public-header-mode .public-nav-primary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 390px) {
  .site-header.public-header-mode .brand.image-brand img {
    width: clamp(138px, 52vw, 172px);
    max-width: 56vw;
  }

  .site-header.public-header-mode .menu-toggle-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header.public-header-mode *,
  .menu-toggle-bars > span {
    transition: none !important;
  }
}