/*!
 * Blindklusiv Consent Banner Styles — WCAG 2.2 AA Konform
 *
 * - Barrierefreie Farbkontraste (min. 4.5:1 für Text)
 * - Sichtbare Fokus-Indikatoren
 * - Responsive Design
 * - Dark Mode unterstützt (prefers-color-scheme)
 * - Respektiert prefers-reduced-motion
 */

/* ============================================
   CSS Custom Properties (Theme Integration)
   ============================================ */
:root {
  /* Falls noch nicht definiert */
  --color-primary: #015258;
  --color-primary-dark: #013A40;
  --color-primary-light: #1D53A5;
  --color-secondary: #FFFFFF;
  --color-text: #1A1A1A;
  --color-text-light: #666666;
  --color-border: #CCCCCC;
  --color-bg-light: #F5F5F5;
  --color-success: #228B22;
  --color-error: #DC143C;

  /* Spacing */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Noto Sans', sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --line-height-base: 1.6;

  /* Z-Index */
  --z-consent-overlay: 9998;
  --z-consent-content: 9999;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-text: #E5E5E5;
    --color-text-light: #B0B0B0;
    --color-bg-light: #2A2A2A;
    --color-border: #444444;
  }
}

/* ============================================
   Consent Banner Container
   ============================================ */
#consent-banner {
  position: fixed;
  inset: 0;
  display: none;
  z-index: var(--z-consent-overlay);
  font-family: var(--font-family);
  color: var(--color-text);
  line-height: var(--line-height-base);
}

#consent-banner.consent-banner--active {
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

@media (max-width: 640px) {
  #consent-banner.consent-banner--active {
    align-items: stretch;
  }
}

/* ============================================
   Overlay
   ============================================ */
.consent-banner__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  cursor: pointer;

  @supports (backdrop-filter: blur(4px)) {
    backdrop-filter: blur(4px);
  }

  /* Animationen respektieren prefers-reduced-motion */
  @media (prefers-reduced-motion: no-preference) {
    animation: fadeIn 0.3s ease-out;
  }
}

/* ============================================
   Content Box
   ============================================ */
.consent-banner__content {
  position: relative;
  z-index: var(--z-consent-content);
  background-color: var(--color-secondary);
  color: var(--color-text);
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  margin: var(--space-4);

  @media (max-width: 640px) {
    border-radius: 16px 16px 0 0;
    margin: 0;
    max-width: 100%;
    width: 100%;
    max-height: calc(100vh - 2rem);
  }

  @media (prefers-reduced-motion: no-preference) {
    animation: slideUp 0.3s ease-out;
  }
}

/* Header */
.consent-banner__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-3);
}

.consent-banner__title {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
}

.consent-banner__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  background-color: transparent;
  border: 2px solid transparent;
  border-radius: 6px;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
  transition: all 0.2s ease;
  flex-shrink: 0;

  &:hover {
    background-color: var(--color-bg-light);
  }

  &:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: var(--color-bg-light);
  }

  &:active {
    transform: scale(0.95);
  }
}

/* Body / Description */
.consent-banner__body {
  padding: var(--space-4);
}

.consent-banner__description {
  margin: 0 0 var(--space-3) 0;
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: 1.7;
}

.consent-banner__link {
  color: var(--color-primary);
  text-decoration: underline;
  font-weight: 500;
  transition: color 0.2s ease;
}

.consent-banner__link:hover,
.consent-banner__link:focus {
  color: var(--color-primary-dark);
  outline: none;
  text-decoration: underline;
}

/* ============================================
   Categories
   ============================================ */
.consent-banner__categories {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

/* Category Item */
.consent-category {
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background-color: var(--color-bg-light);
}

.consent-category__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.consent-category__title {
  margin: 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  flex: 1;
}

.consent-category__badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--color-success);
  color: white;
  border-radius: 20px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.consent-category__description {
  margin: 0 0 var(--space-2) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* Details/Summary */
.consent-category__details {
  margin-top: var(--space-2);
}

.consent-category__summary {
  cursor: pointer;
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: var(--space-1);
  margin: calc(-1 * var(--space-1));
  user-select: none;
  transition: color 0.2s ease;
  border-radius: 4px;

  &:hover {
    color: var(--color-primary-dark);
    background-color: rgba(1, 82, 88, 0.1);
  }

  &:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }
}

.consent-category__content {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
}

.consent-category__content ul {
  margin: 0 0 var(--space-2) var(--space-3);
  padding: 0;
  list-style: disc;
}

.consent-category__content li {
  margin-bottom: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.consent-category__content a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color 0.2s ease;
}

.consent-category__content a:hover,
.consent-category__content a:focus {
  color: var(--color-primary-dark);
}

.consent-category__content em {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-style: italic;
}

/* ============================================
   Toggle Switch (Checkbox)
   ============================================ */
.consent-toggle {
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.consent-toggle__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  cursor: pointer;
}

.consent-toggle__switch {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 48px;
  height: 24px;
  background-color: #cccccc;
  border-radius: 12px;
  transition: background-color 0.3s ease, box-shadow 0.2s ease;
  border: 2px solid transparent;
  box-sizing: border-box;
  flex-shrink: 0;

  &::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background-color: white;
    border-radius: 50%;
    margin-left: 3px;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  }
}

.consent-toggle__input:checked + .consent-toggle__switch {
  background-color: var(--color-success);

  &::after {
    transform: translateX(24px);
  }
}

.consent-toggle__input:focus-visible + .consent-toggle__switch {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================
   Actions / Buttons
   ============================================ */
.consent-banner__actions {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;

  @media (max-width: 640px) {
    flex-direction: column;
  }
}

.consent-banner__btn {
  flex: 1;
  min-width: 140px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-base);
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  white-space: nowrap;

  @media (max-width: 640px) {
    flex: 1 1 100%;
  }

  &:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }
}

.consent-banner__btn--primary {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  border-color: var(--color-primary);

  &:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
  }

  &:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px var(--color-primary), 0 0 0 5px var(--color-secondary);
  }

  &:active {
    transform: scale(0.98);
  }
}

.consent-banner__btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);

  &:hover {
    background-color: var(--color-bg-light);
  }

  &:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }

  &:active {
    transform: scale(0.98);
  }
}

/* ============================================
   Footer / Settings Button
   ============================================ */
.consent-banner__footer {
  padding: 0 var(--space-4) var(--space-4) var(--space-4);
  text-align: center;
  margin: 0;
  font-size: var(--font-size-sm);
}

.consent-banner__link-btn {
  background: none;
  border: none;
  color: var(--color-primary);
  text-decoration: underline;
  font-weight: 500;
  cursor: pointer;
  padding: var(--space-1);
  transition: color 0.2s ease;
  font-size: var(--font-size-base);

  &:hover {
    color: var(--color-primary-dark);
  }

  &:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: 4px;
  }
}

/* ============================================
   Expanded State (Settings sichtbar)
   ============================================ */
#consent-banner:not(.consent-banner--expanded) .consent-category__details {
  display: none;
}

#consent-banner:not(.consent-banner--expanded) .consent-toggle {
  display: none;
}

#consent-banner.consent-banner--expanded .consent-banner__actions {
  flex-direction: row;
}

#consent-banner.consent-banner--expanded .consent-banner__btn {
  flex: 1 1 auto;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  #consent-banner {
    display: none !important;
  }
}

/* ============================================
   Respektiere prefers-reduced-motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  #consent-banner__overlay,
  .consent-banner__content,
  .consent-toggle__switch,
  .consent-banner__btn {
    animation: none !important;
    transition: none !important;
  }
}

/* ============================================
   High Contrast Mode (Windows)
   ============================================ */
@media (prefers-contrast: more) {
  .consent-banner__close,
  .consent-banner__btn {
    border-width: 3px;
  }

  .consent-toggle__switch {
    border-width: 3px;
  }
}