.ecu-responsive-navigation, .ecu-desktop-navigation { display: contents; }
.ecu-mobile-navigation { display: none; }
@media (max-width: 600px) {
  .ecu-responsive-navigation { display: block; flex-basis: 100%; width: 100%; min-width: 0; }
  .ecu-desktop-navigation { display: none; }
  .ecu-mobile-navigation { display: block; width: 100%; color: var(--wp--preset--color--theme-5, #142f40); font-size: 16px; }
  .ecu-mobile-navigation summary { cursor: pointer; padding: 14px 16px; min-height: 24px; border-radius: 8px; font-weight: 650; }
  .ecu-mobile-navigation > summary { background: var(--wp--preset--color--theme-2, #edf3ff); }
  .ecu-mobile-navigation nav { margin-top: 12px; }
  .ecu-mobile-navigation ul { list-style: none; margin: 0; padding: 0; }
  .ecu-mobile-navigation nav > ul > li { border-bottom: 1px solid #d8dfdc; }
  .ecu-mobile-navigation a { display: block; padding: 12px 16px; line-height: 1.45; overflow-wrap: anywhere; }
  .ecu-mobile-navigation__topic { border: 0; margin: 0; padding: 0; }
  .ecu-mobile-navigation__topic[open] { background: #fff; border-radius: 8px; }
  .ecu-mobile-navigation__topic ul { padding: 0 0 8px 12px; }
  .ecu-mobile-navigation__topic a { font-size: 15px; }
  .ecu-mobile-navigation :is(a, summary, input, button):focus-visible { outline: 3px solid #1858cf; outline-offset: 3px; }
  .ecu-mobile-navigation .wp-block-search { margin: 20px 0 0; width: 100%; min-width: 0; }
  .ecu-mobile-navigation .wp-block-search__inside-wrapper { width: 100% !important; min-width: 0; box-sizing: border-box; }
  .ecu-mobile-navigation .wp-block-search__input { width: 0; min-width: 0; flex: 1 1 auto; }
  .ecu-mobile-navigation .wp-block-search__button { margin-left: 8px; padding: 12px; }
}
@media print { .ecu-responsive-navigation { display: none; } }

/* Shared page controls: boundaries remain visible on every section colour. */
.wp-block-button__link.has-theme-3-background-color {
  border: 2px solid var(--wp--preset--color--theme-5, #142f40) !important;
  color: var(--wp--preset--color--theme-5, #142f40) !important;
  box-shadow: 0 2px 0 rgb(20 47 64 / 10%);
}
.has-theme-3-background-color .wp-block-button__link.has-theme-3-background-color {
  background: var(--wp--preset--color--card-white, #fff) !important;
}
.wp-block-button__link.has-theme-3-background-color:hover {
  background: var(--wp--preset--color--theme-2, #edf3ff) !important;
}
.wp-block-button__link:focus-visible {
  outline: 3px solid var(--wp--preset--color--theme-5, #142f40);
  outline-offset: 4px;
}

/* The outer template part must be sticky, not a child confined to the header. */
html { scroll-padding-top: var(--ecu-sticky-offset, 210px); }
.wp-site-blocks > header.wp-block-template-part:has(.ecu-responsive-navigation) {
  position: sticky;
  top: var(--ecu-admin-offset, 0px);
  z-index: 1000;
  margin-top: 0;
  background: var(--wp--preset--color--theme-1, #f7f7f0);
  box-shadow: 0 3px 12px rgb(20 47 64 / 10%);
}
html:has(body.admin-bar) { --ecu-admin-offset: 32px; }
.ecu-header-compact > header.wp-block-group {
  padding-top: 8px !important;
  padding-bottom: 8px !important;
}
.ecu-header-compact > header > .alignwide > .wp-block-group:first-child p:first-child {
  font-size: 21px !important;
  line-height: 1.2;
  margin: 0;
}
.ecu-header-compact > header > .alignwide > .wp-block-group:first-child p + p { display: none; }
.ecu-header-compact .ecu-desktop-navigation .wp-block-navigation { margin-top: 8px !important; }
.ecu-desktop-navigation .wp-block-navigation { position: relative; }
.ecu-desktop-navigation .wp-block-navigation__container { gap: 6px 10px; }
.ecu-desktop-navigation .wp-block-navigation__container > .wp-block-navigation-item > :is(a, button) {
  min-height: 44px;
  box-sizing: border-box;
  border-radius: 8px;
  padding: 10px 8px;
}
.ecu-desktop-navigation .wp-block-navigation__container > .has-child { position: static; }
.ecu-desktop-navigation .wp-block-navigation__container > .has-child > .wp-block-navigation-submenu__toggle {
  margin-left: 0;
  padding-left: 8px;
}
.ecu-desktop-navigation .wp-block-navigation__container > .has-child > .wp-block-navigation__submenu-icon { margin-left: 0; margin-right: 4px; }
.ecu-desktop-navigation .wp-block-navigation__container > .has-child > .wp-block-navigation__submenu-container {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  box-sizing: border-box;
  left: 0;
  right: auto;
  top: 100%;
  width: min(680px, 100%);
  min-width: 0;
  max-height: calc(100dvh - var(--ecu-sticky-offset, 210px) - 16px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 16px;
  background: var(--wp--preset--color--card-white, #fff) !important;
  color: var(--wp--preset--color--theme-5, #142f40) !important;
  border: 1px solid #90a6b6;
  border-top: 4px solid var(--wp--preset--color--brand-blue, #1858cf);
  border-radius: 0 0 14px 14px;
  box-shadow: 0 16px 32px rgb(20 47 64 / 18%);
}
.ecu-desktop-navigation .wp-block-navigation__submenu-container > li { width: auto; min-width: 0; }
.ecu-desktop-navigation .wp-block-navigation__submenu-container .wp-block-navigation-item__content {
  display: block;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  border-radius: 8px;
  line-height: 1.45;
  font-size: 16px;
  color: var(--wp--preset--color--theme-5, #142f40) !important;
  text-decoration: none;
  overflow-wrap: anywhere;
}
.ecu-desktop-navigation :is(.wp-block-navigation-item__content, .wp-block-navigation-submenu__toggle):is(:hover, :focus-visible),
.ecu-desktop-navigation .wp-block-navigation-submenu__toggle[aria-expanded="true"] {
  background: var(--wp--preset--color--theme-2, #edf3ff);
}
.ecu-desktop-navigation :is(a, button, input):focus-visible {
  outline: 3px solid var(--wp--preset--color--brand-blue, #1858cf);
  outline-offset: 2px;
}
.ecu-desktop-navigation .wp-block-search { margin-left: auto; }
.ecu-desktop-navigation .wp-block-search__inside-wrapper { width: 245px !important; }
.ecu-desktop-navigation .wp-block-search__input { width: 0; min-width: 0; flex: 1; }
.ecu-desktop-navigation .wp-block-search__button { padding: 10px 14px; margin-left: 8px; }

@media (max-width: 1100px) {
  html { scroll-padding-top: var(--ecu-sticky-offset, 125px); }
  .wp-site-blocks > header.wp-block-template-part:has(.ecu-responsive-navigation) > header {
    padding: 12px 16px !important;
  }
  .wp-site-blocks > header.wp-block-template-part:has(.ecu-responsive-navigation) > header > .alignwide {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
  }
  .wp-site-blocks > header.wp-block-template-part:has(.ecu-responsive-navigation) > header > .alignwide > .wp-block-group p:first-child {
    font-size: 20px !important;
    line-height: 1.25;
    margin: 0;
  }
  .wp-site-blocks > header.wp-block-template-part:has(.ecu-responsive-navigation) > header > .alignwide > .wp-block-group p + p { display: none; }
  .ecu-responsive-navigation { display: block; width: auto; min-width: 0; margin: 0 !important; }
  .ecu-desktop-navigation { display: none; }
  .ecu-mobile-navigation { display: block; position: relative; width: auto; font-size: 16px; color: var(--wp--preset--color--theme-5, #142f40); }
  .ecu-mobile-navigation summary { cursor: pointer; min-height: 44px; box-sizing: border-box; padding: 11px 14px; border-radius: 8px; font-weight: 650; }
  .ecu-mobile-navigation > summary { background: var(--wp--preset--color--theme-2, #edf3ff); border: 1px solid #90a6b6; }
  .ecu-mobile-navigation nav {
    position: absolute;
    right: 0;
    top: calc(100% + 12px);
    z-index: 1;
    width: min(680px, calc(100vw - 32px));
    max-height: calc(100dvh - var(--ecu-sticky-offset, 125px) - 16px);
    box-sizing: border-box;
    overflow-y: auto;
    overscroll-behavior: contain;
    margin: 0;
    padding: 12px;
    background: var(--wp--preset--color--card-white, #fff);
    border: 1px solid #90a6b6;
    border-top: 4px solid var(--wp--preset--color--brand-blue, #1858cf);
    border-radius: 0 0 12px 12px;
    box-shadow: 0 16px 32px rgb(20 47 64 / 18%);
  }
  .ecu-mobile-navigation ul { list-style: none; margin: 0; padding: 0; }
  .ecu-mobile-navigation nav > ul > li { border-bottom: 1px solid #d8dfdc; }
  .ecu-mobile-navigation a { display: block; padding: 12px; line-height: 1.45; overflow-wrap: anywhere; }
  .ecu-mobile-navigation__topic { border: 0; margin: 0; padding: 0; }
  .ecu-mobile-navigation__topic[open] { background: var(--wp--preset--color--theme-2, #edf3ff); border-radius: 8px; }
  .ecu-mobile-navigation__topic ul { padding: 0 0 8px 8px; }
  .ecu-mobile-navigation__topic a { font-size: 15px; }
  .ecu-mobile-navigation :is(a, summary, input, button):focus-visible { outline: 3px solid #1858cf; outline-offset: 2px; }
  .ecu-mobile-navigation .wp-block-search { margin: 20px 0 0; width: 100%; min-width: 0; }
  .ecu-mobile-navigation .wp-block-search__inside-wrapper { width: 100% !important; min-width: 0; box-sizing: border-box; }
  .ecu-mobile-navigation .wp-block-search__input { width: 0; min-width: 0; flex: 1; }
  .ecu-mobile-navigation .wp-block-search__button { margin-left: 8px; padding: 12px; }
}
@media (max-width: 782px) { html:has(body.admin-bar) { --ecu-admin-offset: 46px; } }
@media print {
  .wp-site-blocks > header.wp-block-template-part:has(.ecu-responsive-navigation) { position: static; box-shadow: none; }
  .ecu-responsive-navigation { display: none; }
}

/* Project identity stays secondary to the main navigation. */
.ecu-brand-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.ecu-brand { min-width: 0; }
.ecu-brand-title { margin: 0; }
.ecu-brand-tagline { margin-top: 3px; }
.ecu-project-mobile-link { display: none; }
.ecu-partner-strip { display: flex; align-items: center; gap: 20px; }
.ecu-partner-strip a { display: grid; justify-items: start; align-content: center; gap: 6px; min-height: 44px; text-decoration: none; color: #142f40; }
.ecu-partner-strip span { font-size: 11px; line-height: 1.3; color: #52636c; }
.ecu-partner-strip img { display: block; max-width: 100%; height: auto; object-fit: contain; background: #fff; }
.ecu-partner-strip .ecu-partner-thu { width: 108px; }
.ecu-partner-strip .ecu-partner-steinbeis { width: 204px; }
.ecu-partner-strip .ecu-project-more { max-width: 145px; font-size: 13px; line-height: 1.4; text-decoration: underline; text-underline-offset: 3px; }
.ecu-partner-strip a:focus-visible, .ecu-project-mobile-link a:focus-visible { outline: 3px solid #1858cf; outline-offset: 5px; border-radius: 2px; }
.ecu-header-compact .ecu-partner-strip { display: none; }
.ecu-project-logos { display: flex; flex-wrap: wrap; align-items: center; gap: 24px 40px; margin: 24px 0; }
.ecu-project-logos img { display: block; width: auto; max-width: 100%; height: auto; object-fit: contain; }
.ecu-project-logos .ecu-project-thu { width: 180px; }
.ecu-project-logos .ecu-project-steinbeis { width: 300px; }
@media (max-width: 1100px) {
  .ecu-brand-row { display: contents; }
  .ecu-partner-strip { display: none; }
  .ecu-brand-tagline { display: none; }
  .ecu-project-mobile-link { display: block !important; margin: 3px 0 0; font-size: 12px !important; line-height: 1.35; }
  .ecu-project-mobile-link a { color: #1858cf; text-underline-offset: 3px; }
}