/* ==== UX Enhancements — applied by TaskFleet ==== */

/* UX-001: Skeleton-Shimmer-Animation
 * Fügt allen Skeleton-Loadern eine Shimmer-Animation hinzu.
 * WCAG 2.2.2: Animation kann via prefers-reduced-motion deaktiviert werden.
 */
@keyframes ux-skeleton-shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.curricula-skeleton-card,
.entity-skeleton-card,
.quiz-skeleton-card,
.ux-skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-surface, #efede6) 25%,
    var(--bg-primary, #f4f2ec) 50%,
    var(--bg-surface, #efede6) 75%
  ) !important;
  background-size: 200% 100% !important;
  animation: ux-skeleton-shimmer 1.5s ease-in-out infinite !important;
  border-radius: 8px;
}

/* Dark theme skeleton */
[data-theme='dark'] .curricula-skeleton-card,
[data-theme='dark'] .entity-skeleton-card,
[data-theme='dark'] .quiz-skeleton-card,
[data-theme='dark'] .ux-skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-secondary, #0d2a1a) 25%,
    var(--bg-tertiary, #123d25) 50%,
    var(--bg-secondary, #0d2a1a) 75%
  ) !important;
  background-size: 200% 100% !important;
}

/* Contrast theme skeleton */
[data-theme='contrast'] .curricula-skeleton-card,
[data-theme='contrast'] .entity-skeleton-card,
[data-theme='contrast'] .quiz-skeleton-card,
[data-theme='contrast'] .ux-skeleton {
  background: linear-gradient(90deg, #1a1a1a 25%, #333 50%, #1a1a1a 75%) !important;
  background-size: 200% 100% !important;
}

/* Reduced motion: disable shimmer */
@media (prefers-reduced-motion: reduce) {
  .curricula-skeleton-card,
  .entity-skeleton-card,
  .quiz-skeleton-card,
  .ux-skeleton {
    animation: none !important;
  }
}

/* UX-003: Retry-Button für Fehlerzustände */
.ux-retry-btn {
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.ux-retry-btn i {
  margin-right: 4px;
}
.empty-state .ux-retry-btn {
  background-color: var(--brand-primary, #1b5e20);
  border-color: var(--brand-primary, #1b5e20);
  color: #fff;
}
.empty-state .ux-retry-btn:hover {
  background-color: var(--brand-secondary, #2e7d32);
  border-color: var(--brand-secondary, #2e7d32);
}
[data-theme='dark'] .empty-state .ux-retry-btn {
  background-color: var(--accent-color, #4caf50);
  border-color: var(--accent-color, #4caf50);
  color: #0a1a0f;
}
[data-theme='contrast'] .empty-state .ux-retry-btn {
  background-color: #ffeb3b;
  border-color: #ffeb3b;
  color: #000;
}

/* UX-002: Toast-Notification-System */
.ux-toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 360px;
  pointer-events: none;
}

.ux-toast {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  background-color: #fff;
  color: #2c3e50;
  opacity: 0;
  transform: translateX(100%);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
  pointer-events: auto;
}

.ux-toast.visible {
  opacity: 1;
  transform: translateX(0);
}

.ux-toast.dismissing {
  opacity: 0;
  transform: translateX(100%);
}

.ux-toast i {
  font-size: 1.2rem;
  margin-top: 2px;
}

.ux-toast-success i {
  color: #2e7d32;
}
.ux-toast-error i {
  color: #c62828;
}
.ux-toast-warning i {
  color: #f57c00;
}
.ux-toast-info i {
  color: #1565c0;
}

.ux-toast-success {
  border-left: 4px solid #2e7d32;
}
.ux-toast-error {
  border-left: 4px solid #c62828;
}
.ux-toast-warning {
  border-left: 4px solid #f57c00;
}
.ux-toast-info {
  border-left: 4px solid #1565c0;
}

.ux-toast-body {
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.4;
}

.ux-toast-close {
  background: none;
  border: none;
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  color: #999;
  padding: 0 2px;
}
.ux-toast-close:hover {
  color: #333;
}

/* Dark theme */
[data-theme='dark'] .ux-toast {
  background-color: var(--bg-tertiary, #123d25);
  color: var(--text-primary, #c8e6c9);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
}
[data-theme='dark'] .ux-toast-close {
  color: var(--text-muted, #81c784);
}
[data-theme='dark'] .ux-toast-close:hover {
  color: var(--text-primary, #c8e6c9);
}

/* Contrast theme */
[data-theme='contrast'] .ux-toast {
  background-color: #000;
  color: #fff;
  border: 2px solid #ffeb3b;
}

/* Mobile: full-width toast at bottom */
@media (max-width: 640px) {
  .ux-toast-container {
    left: 12px;
    right: 12px;
    bottom: 12px;
    max-width: none;
  }
  .ux-toast {
    transform: translateY(100%);
  }
  .ux-toast.visible {
    transform: translateY(0);
  }
  .ux-toast.dismissing {
    transform: translateY(100%);
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .ux-toast {
    transition: opacity 0.01ms;
    transform: none;
  }
}

/* UX-008: Quiz-Widget Loading-State
 * Skeleton-Placeholder statt einfachem Spinner-Text.
 */
.quiz-skeleton-card {
  background: var(--bg-surface, #efede6);
  border-radius: 8px;
  height: 60px;
  margin-bottom: 12px;
  width: 100%;
}

.quiz-skeleton-line {
  background: var(--bg-surface, #efede6);
  border-radius: 4px;
  height: 16px;
  margin-bottom: 8px;
  width: 80%;
}

.quiz-skeleton-line.short {
  width: 50%;
}

.quiz-loading-state {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 0;
}

.quiz-loading-state .quiz-skeleton-card {
  display: flex;
  align-items: center;
  padding: 16px;
  height: auto;
  min-height: 60px;
}

.quiz-loading-state .quiz-skeleton-card .quiz-skeleton-line {
  margin-bottom: 0;
}

/* UX-006: Touch-Targets für Mobile (WCAG 2.5.5)
 * Mindestgröße 44x44px für alle interaktiven Elemente auf Touch-Geräten.
 */
@media (max-width: 768px) {
  /* Buttons */
  .btn,
  .search-submit,
  .search-clear,
  .quiz-widget-controls .btn,
  .theme-option input[type='radio'] {
    min-height: 44px;
    min-width: 44px;
  }

  /* Nav links */
  .navbar-nav > li > a,
  .dropdown-menu > li > a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding-top: 10px;
    padding-bottom: 10px;
  }

  /* Theme switcher radios */
  .theme-option {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  /* Form inputs */
  .form-control,
  .search-input,
  input[type='text'],
  input[type='search'],
  input[type='number'],
  select,
  textarea {
    min-height: 44px;
  }

  /* Card links */
  #card-grid .card .index-anchor,
  .card a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  /* Footer links */
  .footer-link,
  .footer-legal-links a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: 8px 4px;
  }

  /* Quiz answer buttons */
  .quiz-answer-btn,
  .quiz-option {
    min-height: 44px;
    padding: 12px 16px;
  }

  /* Tab navigation */
  .nav-tabs > li > a,
  .nav-pills > li > a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 10px 15px;
  }
}

/* UX-007: Fokus-Konsistenz
 * Einheitliche Focus-Rings für Tastaturnavigation.
 * WCAG 2.4.7 (Focus Visible) + 2.4.11 (Focus Not Obscured).
 */
:focus-visible {
  outline: 3px solid var(--accent-color, #007bff);
  outline-offset: 2px;
  border-radius: 3px;
}

/* Remove default outline only when :focus-visible is supported */
:focus:not(:focus-visible) {
  outline: none;
}

/* Links */
a:focus-visible,
.navbar-nav > li > a:focus-visible,
.dropdown-menu > li > a:focus-visible,
.footer-link:focus-visible,
.card a:focus-visible {
  outline: 3px solid var(--accent-color, #007bff);
  outline-offset: 2px;
  border-radius: 3px;
  background-color: rgba(0, 123, 255, 0.08);
}

/* Buttons */
.btn:focus-visible,
.search-submit:focus-visible,
.search-clear:focus-visible,
.quiz-widget-controls .btn:focus-visible,
.quiz-answer-btn:focus-visible,
.quiz-option:focus-visible {
  outline: 3px solid var(--accent-color, #007bff);
  outline-offset: 2px;
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.3);
}

/* Form inputs */
.form-control:focus-visible,
.search-input:focus-visible,
input[type='text']:focus-visible,
input[type='search']:focus-visible,
input[type='number']:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--accent-color, #007bff);
  outline-offset: 2px;
  border-color: var(--accent-color, #007bff);
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
}

/* Theme switcher */
.theme-option input[type='radio']:focus-visible + .theme-option-text {
  outline: 3px solid var(--accent-color, #007bff);
  outline-offset: 2px;
  border-radius: 3px;
}

/* Tabs */
.nav-tabs > li > a:focus-visible,
.nav-pills > li > a:focus-visible {
  outline: 3px solid var(--accent-color, #007bff);
  outline-offset: 2px;
}

/* Dark theme */
[data-theme='dark'] :focus-visible {
  outline-color: var(--accent-color, #4caf50);
}
[data-theme='dark'] a:focus-visible,
[data-theme='dark'] .btn:focus-visible {
  background-color: rgba(76, 175, 80, 0.12);
  box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.3);
}

/* Contrast theme */
[data-theme='contrast'] :focus-visible {
  outline: 4px solid #ffeb3b;
  outline-offset: 2px;
}
[data-theme='contrast'] a:focus-visible,
[data-theme='contrast'] .btn:focus-visible {
  background-color: rgba(255, 235, 59, 0.15);
  box-shadow: 0 0 0 3px rgba(255, 235, 59, 0.4);
}

/* Ensure focus is not obscured by sticky headers */
html {
  scroll-padding-top: 80px;
}

/* UX-004: Aktive Markierung für Tastaturnavigation in Suchergebnissen */
.search-result-item.active {
  background-color: rgba(0, 123, 255, 0.1);
  outline: 2px solid var(--accent-color, #007bff);
  outline-offset: -2px;
  border-radius: 6px;
}
[data-theme='dark'] .search-result-item.active {
  background-color: rgba(76, 175, 80, 0.15);
  outline-color: var(--accent-color, #4caf50);
}
[data-theme='contrast'] .search-result-item.active {
  background-color: rgba(255, 235, 59, 0.2);
  outline-color: #ffeb3b;
}

/* UXF-001: Themen-Suche über alle Bundesländer */
.curricula-topic-search {
  margin: 1rem 0 1.5rem;
  position: relative;
}
.curricula-topic-search-input {
  width: 100%;
  max-width: 560px;
  padding: 12px 16px;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 10px;
  font-size: 1rem;
  background: var(--bg-card, #fff);
  color: var(--text-primary, #333);
}
.curricula-topic-search-input:focus-visible {
  outline: 3px solid var(--accent-color, #1b5e20);
  outline-offset: 1px;
}
.curricula-topic-results {
  margin-top: 0.75rem;
}
.cts-status {
  color: var(--text-muted, #777);
  padding: 0.5rem 0;
}
.cts-status.cts-error {
  color: #c62828;
}
.cts-meta {
  font-size: 0.8rem;
  color: var(--text-muted, #888);
  margin-bottom: 0.4rem;
}
.cts-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.cts-item {
  border: 1px solid var(--border-color, #eee);
  border-radius: 8px;
  margin-bottom: 6px;
  background: var(--bg-card, #fff);
  transition:
    box-shadow 0.15s,
    border-color 0.15s;
}
.cts-item.active,
.cts-item:hover {
  border-color: var(--accent-color, #1b5e20);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
.cts-item {
  display: flex;
  align-items: center;
}
.cts-item > a:first-child {
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--text-primary, #333);
  text-decoration: none;
  flex-wrap: wrap;
  min-height: 44px;
}
.cts-state-link {
  padding: 10px 12px;
  font-size: 0.8rem;
  color: var(--brand-primary, #1b5e20);
  text-decoration: none;
  white-space: nowrap;
  border-left: 1px solid var(--border-color, #eee);
  display: inline-flex;
  align-items: center;
}
.cts-state-link:hover {
  text-decoration: underline;
}
.cts-title {
  flex: 1;
  min-width: 200px;
  font-weight: 500;
}
.cts-badges {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.cts-badge {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--bg-surface, #f0ede4);
  color: var(--text-muted, #666);
  white-space: nowrap;
}
.cts-badge.cts-state {
  background: var(--brand-primary, #1b5e20);
  color: #fff;
  font-weight: 600;
}
.cts-badge.cts-obj {
  background: #e8f5e9;
  color: #2e7d32;
}
[data-theme='dark'] .cts-badge {
  background: var(--bg-tertiary, #123d25);
  color: #a5d6a7;
}
[data-theme='dark'] .cts-badge.cts-state {
  background: var(--accent-color, #4caf50);
  color: #0a1a0f;
}
[data-theme='dark'] .cts-badge.cts-obj {
  background: #1b3d22;
  color: #a5d6a7;
}
[data-theme='contrast'] .cts-badge {
  background: #333;
  color: #fff;
}
[data-theme='contrast'] .cts-badge.cts-state {
  background: #ffeb3b;
  color: #000;
}

/* UXF-005: Interaktive Graph-Legende */
.curricula-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.82rem;
  color: var(--text-primary, #444);
  cursor: pointer;
  transition:
    background 0.15s,
    border-color 0.15s;
}
.curricula-legend-item:hover {
  background: var(--bg-surface, #f0ede4);
  border-color: var(--border-color, #ddd);
}
.curricula-legend-item.active {
  background: var(--bg-surface, #e8f5e9);
  border-color: var(--accent-color, #1b5e20);
  font-weight: 600;
}
.curricula-legend-item:focus-visible {
  outline: 3px solid var(--accent-color, #1b5e20);
  outline-offset: 1px;
}
.curricula-legend-reset {
  color: #c62828;
  font-size: 0.78rem;
}
.curricula-legend-reset.active {
  background: #fdecea;
}
[data-theme='dark'] .curricula-legend-item {
  color: var(--text-primary, #c8e6c9);
}
[data-theme='dark'] .curricula-legend-item.active {
  background: var(--bg-tertiary, #123d25);
  border-color: var(--accent-color, #4caf50);
}
[data-theme='contrast'] .curricula-legend-item {
  color: #fff;
}
[data-theme='contrast'] .curricula-legend-item.active {
  background: #333;
  border-color: #ffeb3b;
}

/* UXF-003/004/008: State-Seite — Ausklappen + Sprungnavi */
.curricula-jump-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 1.25rem;
}
.curricula-jump-chip {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--bg-surface, #f0ede4);
  border: 1px solid var(--border-color, #ddd);
  color: var(--text-primary, #333);
  text-decoration: none;
  font-size: 0.85rem;
}
.curricula-jump-chip:hover {
  border-color: var(--accent-color, #1b5e20);
  background: #e8f5e9;
}
.school-type-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  text-align: left;
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-color, #ddd);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary, #333);
  cursor: pointer;
}
.school-type-toggle:hover {
  border-color: var(--accent-color, #1b5e20);
}
.school-type-toggle .school-topic-count {
  font-weight: 400;
  font-size: 0.82rem;
  color: var(--text-muted, #888);
}
.school-type-toggle:focus-visible {
  outline: 3px solid var(--accent-color, #1b5e20);
  outline-offset: 1px;
}
.objective-more-btn {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  background: #eee;
  color: #555;
  border: 1px dashed #bbb;
  font-size: 0.78rem;
  cursor: pointer;
}
.objective-more-btn:hover {
  background: #e0e0e0;
  color: #222;
}

/* UXF-007: Vergleichs-Toolbar */
.curricula-compare-toolbar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin: 0.75rem 0;
}
.curricula-compare-only-common {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  cursor: pointer;
}
.curricula-compare-visible {
  font-size: 0.8rem;
  color: var(--text-muted, #888);
}
.curricula-compare-csv {
  font-size: 0.85rem;
}

/* UXF-010/013: Live-Filter (State-Seite + Modulhandbuch) */
.state-topic-filter,
.mh-module-filter {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0 0 1rem;
}
.state-topic-filter-input,
.mh-module-filter .mh-search {
  flex: 1;
  min-width: 220px;
  max-width: 420px;
  padding: 10px 14px;
  border: 1px solid var(--border-color, #ddd);
  border-radius: 10px;
  font-size: 0.95rem;
  background: var(--bg-card, #fff);
  color: var(--text-primary, #333);
}
.state-topic-filter-input:focus-visible,
.mh-module-filter .mh-search:focus-visible {
  outline: 3px solid var(--accent-color, #1b5e20);
  outline-offset: 1px;
}
.state-topic-count,
.mh-module-stats {
  font-size: 0.82rem;
  color: var(--text-muted, #777);
  white-space: nowrap;
}
.cts-more {
  margin: 0.75rem auto 0;
  display: block;
}

/* UXF-017: Druckansicht State-Lehrplan (Lehrer-Use-Case) */
@media print {
  header.navbar,
  footer,
  nav,
  .state-topic-filter,
  #state-print-btn,
  .objective-more-btn,
  .cts-more {
    display: none !important;
  }
  body {
    background: #fff !important;
    color: #000 !important;
  }
  .state-topic-card {
    break-inside: avoid;
    page-break-inside: avoid;
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }
  .school-type-group {
    break-inside: avoid-page;
  }
  a {
    text-decoration: none;
    color: inherit;
  }
}