/* ==========================================================================
   Site Header & Navigation – kanonische Styles
   Neue Header- und Navigationsänderungen nur hier vornehmen.
   ========================================================================== */

:root {
  --site-header-height: 4.5rem;
  --site-header-bg: var(--brand-navy, #0b2f4a);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--site-header-bg);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  max-width: 100%;
  overflow-x: clip;
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: var(--site-header-height);
  padding: 0.5rem 1rem;
  box-sizing: border-box;
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: inherit;
  margin-right: auto;
  flex-shrink: 1;
  min-width: 0;
}

.brand__logo-full {
  display: block;
  width: min(190px, 48vw);
  max-height: 2.75rem;
  height: auto;
  object-fit: contain;
  object-position: left center;
}

.brand__claim {
  display: none;
}

.site-nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  cursor: pointer;
  flex-shrink: 0;
}

.site-nav-toggle:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

.site-nav-toggle__icon {
  position: relative;
  display: block;
  width: 1.125rem;
  height: 0.875rem;
}

.site-nav-toggle__icon::before,
.site-nav-toggle__icon::after,
.site-nav-toggle__icon {
  background: transparent;
}

.site-nav-toggle__icon::before,
.site-nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.18s ease, top 0.18s ease, opacity 0.18s ease;
}

.site-nav-toggle__icon::before {
  top: 0;
  box-shadow: 0 6px 0 currentColor;
}

.site-nav-toggle__icon::after {
  top: 12px;
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__icon::before {
  top: 6px;
  transform: rotate(45deg);
  box-shadow: none;
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__icon::after {
  top: 6px;
  transform: rotate(-45deg);
}

@media (prefers-reduced-motion: reduce) {
  .site-nav-toggle__icon::before,
  .site-nav-toggle__icon::after {
    transition: none;
  }
}

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

.site-nav--mobile {
  position: fixed;
  top: var(--site-header-height);
  left: 0;
  right: 0;
  z-index: 99;
  max-height: calc(100dvh - var(--site-header-height));
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--site-header-bg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

.site-nav--mobile[hidden] {
  display: none !important;
}

.site-nav-mobile__sections {
  padding: 0.35rem 0;
}

.site-nav-mobile__section + .site-nav-mobile__section {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-nav-mobile__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  border: 0;
  background: transparent;
  color: #fff;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.site-nav-mobile__trigger::after {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid rgba(255, 255, 255, 0.75);
  border-bottom: 2px solid rgba(255, 255, 255, 0.75);
  transform: rotate(45deg);
  transition: transform 0.18s ease;
  flex-shrink: 0;
  margin-left: 0.75rem;
}

.site-nav-mobile__trigger[aria-expanded="true"]::after {
  transform: rotate(-135deg);
}

.site-nav-mobile__section--active > .site-nav-mobile__trigger {
  background: rgba(255, 255, 255, 0.06);
}

.site-nav-mobile__panel {
  list-style: none;
  margin: 0;
  padding: 0 0 0.35rem;
}

.site-nav-mobile__panel[hidden] {
  display: none;
}

.site-nav-mobile__link {
  display: block;
  min-height: 2.75rem;
  padding: 0.65rem 1rem 0.65rem 1.35rem;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-size: 0.92rem;
}

.site-nav-mobile__link:hover,
.site-nav-mobile__link:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.site-nav-mobile__link--active,
.site-nav-mobile__link[aria-current="page"] {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-weight: 600;
}

.site-nav-mobile__divider {
  height: 1px;
  margin: 0.25rem 1rem;
  background: rgba(255, 255, 255, 0.14);
}

.site-nav-mobile__utility {
  list-style: none;
  margin: 0;
  padding: 0.35rem 0 0.75rem;
}

.site-nav-mobile__utility-link {
  display: block;
  min-height: 2.75rem;
  padding: 0.65rem 1rem;
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  font-size: 0.92rem;
}

.site-nav-mobile__utility-link:hover,
.site-nav-mobile__utility-link:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.site-nav-mobile__utility-link--active,
.site-nav-mobile__utility-link[aria-current="page"] {
  color: #fff;
  font-weight: 600;
}

.site-nav--noscript {
  width: 100%;
  padding: 0.75rem 0 0.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.site-nav-noscript__section {
  margin-bottom: 0.75rem;
}

.site-nav-noscript__heading {
  margin: 0 0 0.35rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.85);
}

.site-nav-noscript__section ul,
.site-nav-noscript__utility {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav-noscript__link,
.site-nav-noscript__utility a {
  display: block;
  padding: 0.45rem 0;
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
}

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

@media (min-width: 900px) {
  .site-header__inner {
    max-width: var(--maxw, 1180px);
    margin: 0 auto;
    padding-inline: clamp(1rem, 4vw, 2rem);
  }

  .brand__logo-full {
    width: 220px;
    max-height: none;
  }

  .brand__claim {
    display: block;
    font-size: 0.68rem;
    line-height: 1.2;
    color: rgba(255, 255, 255, 0.72);
    letter-spacing: 0.005em;
    max-width: 240px;
    margin-top: 0.12rem;
  }

  .home .brand {
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
  }

  .home .brand__claim {
    display: none;
  }

  .site-nav-toggle,
  .site-nav--mobile,
  .site-nav--noscript {
    display: none !important;
  }

  .site-nav--desktop {
    display: block;
    width: auto;
    flex: 1 1 auto;
    min-width: 0;
  }

  .site-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: flex-end;
    gap: 0.15rem;
  }

  .site-nav__item {
    position: relative;
    margin: 0;
    flex: 0 0 auto;
  }

  .site-nav__trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 0.75rem;
    border: 0;
    border-radius: 0.45rem;
    background: transparent;
    color: rgba(255, 255, 255, 0.92);
    font: inherit;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
  }

  .site-nav__trigger::after {
    content: "";
    width: 0;
    height: 0;
    border-left: 0.28rem solid transparent;
    border-right: 0.28rem solid transparent;
    border-top: 0.32rem solid currentColor;
    opacity: 0.75;
  }

  .site-nav__trigger:hover,
  .site-nav__item--dropdown:focus-within > .site-nav__trigger,
  .site-nav__item--dropdown:hover > .site-nav__trigger {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
  }

  .site-nav__trigger--active {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
  }

  .site-nav__menu {
    position: absolute;
    top: calc(100% + 0.35rem);
    right: 0;
    min-width: 15rem;
    margin: 0;
    padding: 0.35rem 0;
    list-style: none;
    background: #fff;
    border: 1px solid var(--border, #d8e2ea);
    border-radius: 0.65rem;
    box-shadow: var(--shadow, 0 8px 24px rgba(11, 47, 74, 0.12));
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.25rem);
    transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s;
    z-index: 120;
  }

  .site-nav__item--dropdown:focus-within > .site-nav__menu,
  .site-nav__item--dropdown:hover > .site-nav__menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav__sublink {
    display: block;
    padding: 0.55rem 0.9rem;
    color: var(--ink, #17232b);
    text-decoration: none;
    font-size: 0.9rem;
    white-space: nowrap;
  }

  .site-nav__sublink:hover {
    background: var(--surface-soft, #eaf4fb);
    color: var(--brand-blue, #1d70b8);
  }

  .site-nav__sublink--active,
  .site-nav__sublink[aria-current="page"] {
    background: var(--surface-soft, #eaf4fb);
    color: var(--brand-blue, #1d70b8);
    font-weight: 600;
  }

  .site-nav__sublink:focus-visible {
    outline: 3px solid var(--brand-blue, #1d70b8);
    outline-offset: -2px;
  }
}

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

  .site-nav-mobile__trigger::after {
    transition: none;
  }
}

@media (max-width: 899px) {
  .ratgeber-head {
    margin-bottom: 1.1rem;
  }

  .breadcrumb ol {
    margin: 0 0 1rem;
    font-size: clamp(0.875rem, 2.8vw, 1rem);
    line-height: 1.45;
  }

  .ratgeber-wrap {
    padding-top: 1rem;
  }

  .ratgeber-kicker {
    margin-bottom: 0.45rem;
  }

  .ratgeber-title {
    margin-bottom: 0.65rem;
  }

  .ratgeber-transparency,
  .ratgeber-sources,
  .ratgeber-body [id] {
    scroll-margin-top: calc(var(--site-header-height) + 0.75rem);
  }
}

@media (min-width: 900px) {
  .ratgeber-transparency,
  .ratgeber-sources,
  .ratgeber-body [id] {
    scroll-margin-top: calc(var(--site-header-height) + 0.75rem);
  }
}