/* =============================================================================
   LAYOUT – Seitenstruktur und Raster
   Basiert auf dem Siegelraster des UzK Markenhandbuchs
   ============================================================================= */

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 9999;
  padding: var(--space-3) var(--space-6);
  background-color: var(--color-uni-blau);
  color: var(--color-white);
  font-family: var(--font-sans);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--color-tuerkis);
}

/* --- Seitenstruktur --- */
.layout-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-white);
  border-bottom: 2px solid var(--color-uni-blau);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

/* Drupal Admin-Toolbar: Header unter der fixen Toolbar halten */
body.toolbar-fixed .site-header {
  top: 39px;
}

body.toolbar-fixed.toolbar-tray-open.toolbar-horizontal .site-header {
  top: 79px;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: var(--header-height);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* Nur Branding-Block im Header zeigen, andere Blöcke unterdrücken */
.site-logo-wrapper {
  display: flex;
  align-items: center;
  min-width: 0;
  flex-shrink: 0;
}

.site-logo-wrapper .block:not(.block-system-branding-block) {
  display: none;
}

.site-logo-wrapper .block-system-branding-block {
  display: block;
}

/* --- Hauptinhalt --- */
.layout-main {
  flex: 1;
  width: 100%;
}

/* Seite ohne Sidebar */
.layout-no-sidebars .layout-content {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-12) var(--space-6);
}

/* Seite mit einer Sidebar */
.layout-one-sidebar {
  display: grid;
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-12) var(--space-6);
  gap: var(--space-8);
}

.layout-one-sidebar.layout-sidebar-first {
  grid-template-columns: 280px 1fr;
  grid-template-areas: 'sidebar content';
}

.layout-one-sidebar.layout-sidebar-second {
  grid-template-columns: 1fr 280px;
  grid-template-areas: 'content sidebar';
}

.layout-one-sidebar .layout-content {
  grid-area: content;
}

.layout-one-sidebar .layout-region--sidebar-first,
.layout-one-sidebar .layout-region--sidebar-second {
  grid-area: sidebar;
}

/* Seite mit zwei Sidebars */
.layout-two-sidebars {
  display: grid;
  grid-template-columns: 240px 1fr 240px;
  grid-template-areas: 'sidebar-first content sidebar-second';
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-12) var(--space-6);
  gap: var(--space-8);
}

/* --- Admin-Bar: Status Messages + Lokale Aufgaben (Tabs) --- */
.layout-region--admin-bar {
  background-color: var(--color-white);
  /*
  border-bottom: 1px solid var(--color-sand-200);
   */
}

.admin-bar__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
  padding-block: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.admin-bar__messages {
  width: 100%;
}

/* Drupal Lokale Aufgaben (Bearbeiten / Anzeigen / Löschen Tabs) */
.admin-bar__tabs .block__content {
  display: flex;
  align-items: center;
}

.admin-bar__tabs .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

.admin-bar__tabs ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.admin-bar__tabs ul li {
  margin: 0;
}

.admin-bar__tabs ul a {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-gray-600);
  text-decoration: none;
  border: 1px solid var(--color-sand-200);
  border-radius: 2rem;
  background-color: var(--color-white);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.admin-bar__tabs ul a:hover {
  background-color: var(--color-sand-50);
  color: var(--color-uni-blau);
  border-color: var(--color-uni-blau-30);
}

.admin-bar__tabs ul a.is-active {
  background-color: var(--color-uni-blau);
  color: var(--color-white);
  border-color: var(--color-uni-blau);
}

/* --- Seitentitel --- */
.layout-region--page-title {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-sand-200);
}

.page-title__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
  padding-block: var(--space-4) var(--space-3);
}

.page-title__inner h1,
.page-title__inner .page-title {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-uni-blau);
  margin: 0;
  line-height: 1.3;
}

/* --- Breadcrumb --- */
.layout-region--breadcrumb {
  background-color: var(--color-sand-50);
  border-bottom: 1px solid var(--color-sand-200);
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-uni-blau);
  color: var(--color-white);
  padding-top: var(--space-16);
  position: relative;
  overflow: hidden;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
  padding-bottom: var(--space-12);
}

.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  max-width: var(--container-max);
  margin-inline: auto;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

.footer-bottom-nav {
  display: flex;
  gap: var(--space-6);
  align-items: center;
}

.site-footer__bottom a,
.footer-bottom-nav a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}

.site-footer__bottom a:hover,
.footer-bottom-nav a:hover {
  color: var(--color-tuerkis);
}

/* --- Hero-Bereich --- */
.hero {
  position: relative;
  overflow: hidden;
  background-color: var(--color-sand-50);
  min-height: 500px;
  display: flex;
  align-items: center;
}

.hero--primary {
  background: linear-gradient(135deg, var(--color-uni-blau) 0%, #003a55 100%);
  color: var(--color-white);
  min-height: 600px;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-20) var(--space-6);
}

/* --- Inhalts-Karten (Grid) --- */
.card-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.card-grid--2col {
  grid-template-columns: repeat(2, 1fr);
}

.card-grid--3col {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid--4col {
  grid-template-columns: repeat(4, 1fr);
}

/* --- Section Wrapper --- */
.section {
  padding-block: var(--space-20);
}

.section--sm {
  padding-block: var(--space-12);
}

.section--lg {
  padding-block: var(--space-24);
}

.section--bg-sand {
  background-color: var(--color-sand-50);
}

.section--bg-blau {
  background-color: var(--color-uni-blau);
  color: var(--color-white);
}

.section--bg-tuerkis {
  background-color: var(--color-tuerkis-10);
}