/**
 * Citelayer® AI Visibility Dashboard
 * Version: 1.0
 * Designer: Pixel
 * 
 * Performance-optimiert, WCAG 2.1 AA, Mobile-first
 * Namespace: cl- (Citelayer)
 */

/* ==========================================================================
   1. CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
  /* Colors - Dark Theme */
  --cl-bg-primary: #0F1115;
  --cl-bg-secondary: #1A1D24;
  --cl-bg-card: #1F2229;
  --cl-bg-hover: #2A2F38;
  --cl-border-subtle: #2D333B;
  
  /* Text Colors */
  --cl-text-primary: #FFFFFF;
  --cl-text-secondary: #D1D5DB;  /* WCAG AAA: 7.04:1 (vorher #9CA3AF = 4.64:1) */
  --cl-text-muted: #9CA3AF;      /* WCAG AA für 14px+: 4.64:1 (vorher #6B7280 = 2.5:1) */
  
  /* Accent Colors */
  --cl-accent-orange: #FF7F11;
  --cl-accent-orange-hover: #FF9538;
  
  /* Status Colors */
  --cl-status-active: #10B981;
  --cl-status-warning: #F59E0B;
  --cl-status-inactive: #EF4444;
  
  /* Typography */
  --cl-font-brand: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --cl-font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --cl-font-mono: 'JetBrains Mono', 'Courier New', monospace;
  
  /* Font Sizes */
  --cl-text-xs: 0.75rem;    /* 12px */
  --cl-text-sm: 0.875rem;   /* 14px */
  --cl-text-base: 1rem;     /* 16px */
  --cl-text-lg: 1.125rem;   /* 18px */
  --cl-text-xl: 1.25rem;    /* 20px */
  --cl-text-2xl: 1.5rem;    /* 24px */
  --cl-text-3xl: 1.875rem;  /* 30px */
  
  /* Spacing */
  --cl-space-xs: 4px;
  --cl-space-sm: 8px;
  --cl-space-md: 12px;
  --cl-space-lg: 16px;
  --cl-space-xl: 20px;
  --cl-space-2xl: 24px;
  --cl-space-3xl: 32px;
  --cl-space-4xl: 48px;
  
  /* Border Radius */
  --cl-radius-sm: 4px;
  --cl-radius-md: 8px;
  --cl-radius-lg: 12px;
  
  /* Shadows */
  --cl-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --cl-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --cl-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  
  /* Transitions */
  --cl-transition-fast: 150ms ease-in-out;
  --cl-transition-base: 200ms ease-in-out;
  --cl-transition-slow: 300ms ease-in-out;
}

/* ==========================================================================
   2. WordPress Admin Overrides
   ========================================================================== */

.wrap.citelayer-dashboard {
  background: var(--cl-bg-primary);
  margin: -20px -20px 0 -12px;
  padding: var(--cl-space-3xl);
  min-height: calc(100vh - 32px);
}

.wrap.citelayer-dashboard h1.wp-heading-inline {
  display: none;
}

#wpbody-content {
  background: transparent;
}

/* ==========================================================================
   3. Dashboard Container
   ========================================================================== */

.cl-dashboard-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cl-space-3xl);
}

/* ==========================================================================
   4. Dashboard Header
   ========================================================================== */

.cl-dashboard-header {
  margin-bottom: var(--cl-space-2xl);
}

.cl-dashboard-title {
  font-family: var(--cl-font-brand);
  font-size: var(--cl-text-3xl);
  font-weight: 600;
  color: var(--cl-text-primary);
  margin: 0 0 var(--cl-space-sm);
  line-height: 1.2;
}

.citelayer-brand {
  font-family: var(--cl-font-brand);
  font-weight: 600;
  text-transform: lowercase;
  color: var(--cl-accent-orange);
}

.citelayer-brand::after {
  content: '®';
  font-size: 0.6em;
  vertical-align: super;
  margin-left: 2px;
}

.cl-dashboard-subtitle {
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-base);
  color: var(--cl-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* ==========================================================================
   5. Layer Cards Grid
   ========================================================================== */

.cl-layer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cl-space-xl);
}

@media (min-width: 640px) {
  .cl-layer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .cl-layer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   6. Layer Card Component
   ========================================================================== */

.cl-layer-card {
  background: var(--cl-bg-card);
  border: 1px solid var(--cl-border-subtle);
  border-radius: var(--cl-radius-lg);
  padding: var(--cl-space-xl);
  cursor: pointer;
  transition: all var(--cl-transition-base);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 160px;
}

.cl-layer-card:hover {
  background: var(--cl-bg-hover);
  border-color: var(--cl-accent-orange);
  box-shadow: var(--cl-shadow-md);
}

.cl-layer-card:focus {
  outline: none;
  border-color: var(--cl-accent-orange);
  box-shadow: 0 0 0 3px rgba(255, 127, 17, 0.2);
}

.cl-layer-card:focus-visible {
  outline: 2px solid var(--cl-accent-orange);
  outline-offset: 2px;
}

.cl-layer-card[aria-pressed="true"] {
  border-color: var(--cl-accent-orange);
  box-shadow: 0 0 0 3px rgba(255, 127, 17, 0.2);
}

/* Card Header */
.cl-layer-card-header {
  display: flex;
  align-items: center;
  gap: var(--cl-space-md);
  margin-bottom: var(--cl-space-md);
}

/* Status Indicator */
.cl-status-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.cl-status-active {
  background: var(--cl-status-active);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.cl-status-warning {
  background: var(--cl-status-warning);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
}

.cl-status-inactive {
  background: var(--cl-status-inactive);
}

/* Card Title */
.cl-layer-card-title {
  font-family: var(--cl-font-brand);
  font-size: var(--cl-text-lg);
  font-weight: 600;
  color: var(--cl-text-primary);
  margin: 0;
}

/* Card Description */
.cl-layer-card-description {
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-sm);
  color: var(--cl-text-secondary);
  line-height: 1.5;
  margin: 0 0 var(--cl-space-lg);
  flex: 1;
}

/* Card Footer */
.cl-layer-card-footer {
  margin-top: auto;
}

.cl-layer-link {
  display: inline-flex;
  align-items: center;
  gap: var(--cl-space-sm);
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-sm);
  color: var(--cl-accent-orange);
  text-decoration: none;
  transition: color var(--cl-transition-fast);
}

.cl-layer-link:hover,
.cl-layer-link:focus {
  color: var(--cl-accent-orange-hover);
  text-decoration: underline;
}

.cl-icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Conflict State */
.cl-layer-card--conflict {
  opacity: 0.8;
}

.cl-conflict-notice {
  display: flex;
  align-items: center;
  gap: var(--cl-space-sm);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--cl-status-warning);
  border-radius: var(--cl-radius-sm);
  padding: var(--cl-space-sm) var(--cl-space-md);
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-xs);
  color: var(--cl-status-warning);
  margin-top: var(--cl-space-md);
}

/* ==========================================================================
   7. Live Preview Area
   ========================================================================== */

.cl-preview-area {
  background: var(--cl-bg-card);
  border: 1px solid var(--cl-border-subtle);
  border-radius: var(--cl-radius-lg);
  padding: var(--cl-space-2xl);
  display: none;
}

.cl-preview-area[data-visible="true"] {
  display: block;
  animation: cl-slideIn var(--cl-transition-base);
}

@keyframes cl-slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Preview Header */
.cl-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--cl-space-xl);
  padding-bottom: var(--cl-space-lg);
  border-bottom: 1px solid var(--cl-border-subtle);
}

.cl-preview-title {
  font-family: var(--cl-font-brand);
  font-size: var(--cl-text-xl);
  font-weight: 600;
  color: var(--cl-text-primary);
  margin: 0;
}

.cl-preview-close {
  background: transparent;
  border: none;
  color: var(--cl-text-secondary);
  cursor: pointer;
  padding: var(--cl-space-sm);
  transition: color var(--cl-transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--cl-radius-sm);
}

.cl-preview-close:hover,
.cl-preview-close:focus {
  color: var(--cl-text-primary);
  outline: none;
  background: var(--cl-bg-hover);
}

.cl-preview-close:focus-visible {
  outline: 2px solid var(--cl-accent-orange);
  outline-offset: 2px;
}

/* Preview Content */
.cl-preview-content {
  background: var(--cl-bg-primary);
  border: 1px solid var(--cl-border-subtle);
  border-radius: var(--cl-radius-md);
  padding: var(--cl-space-xl);
  max-height: 500px;
  overflow-y: auto;
  margin-bottom: var(--cl-space-xl);
  scrollbar-width: thin;
  scrollbar-color: var(--cl-border-subtle) var(--cl-bg-primary);
}

.cl-preview-content::-webkit-scrollbar {
  width: 8px;
}

.cl-preview-content::-webkit-scrollbar-track {
  background: var(--cl-bg-primary);
}

.cl-preview-content::-webkit-scrollbar-thumb {
  background: var(--cl-border-subtle);
  border-radius: 4px;
}

.cl-preview-content::-webkit-scrollbar-thumb:hover {
  background: var(--cl-bg-hover);
}

.cl-preview-text,
.cl-preview-json {
  font-family: var(--cl-font-mono);
  font-size: var(--cl-text-sm);
  color: var(--cl-text-primary);
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

/* JSON Syntax Highlighting */
.cl-preview-json .token.property {
  color: #7DD3FC;
}

.cl-preview-json .token.string {
  color: #A78BFA;
}

.cl-preview-json .token.number,
.cl-preview-json .token.boolean {
  color: #34D399;
}

.cl-preview-json .token.punctuation {
  color: var(--cl-text-secondary);
}

/* Markdown Preview */
.cl-preview-markdown {
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-base);
  color: var(--cl-text-primary);
  line-height: 1.6;
}

.cl-preview-markdown h1,
.cl-preview-markdown h2,
.cl-preview-markdown h3 {
  font-family: var(--cl-font-brand);
  color: var(--cl-text-primary);
  margin-top: var(--cl-space-2xl);
  margin-bottom: var(--cl-space-md);
}

.cl-preview-markdown a {
  color: var(--cl-accent-orange);
  text-decoration: underline;
}

.cl-preview-markdown code {
  font-family: var(--cl-font-mono);
  font-size: var(--cl-text-sm);
  background: var(--cl-bg-card);
  padding: 2px 6px;
  border-radius: var(--cl-radius-sm);
}

/* Preview Footer */
.cl-preview-footer {
  display: flex;
  gap: var(--cl-space-md);
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ==========================================================================
   8. Buttons
   ========================================================================== */

.cl-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--cl-space-sm);
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-sm);
  font-weight: 500;
  padding: var(--cl-space-md) var(--cl-space-xl);
  border-radius: var(--cl-radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--cl-transition-fast);
  text-decoration: none;
  min-height: 44px;
  white-space: nowrap;
}

.cl-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.cl-button--primary {
  background: var(--cl-accent-orange);
  color: #FFFFFF;
}

.cl-button--primary:hover:not(:disabled) {
  background: var(--cl-accent-orange-hover);
  box-shadow: var(--cl-shadow-md);
}

.cl-button--primary:focus-visible {
  outline: 2px solid var(--cl-accent-orange);
  outline-offset: 2px;
}

.cl-button--secondary {
  background: var(--cl-bg-secondary);
  color: var(--cl-text-primary);
  border: 1px solid var(--cl-border-subtle);
}

.cl-button--secondary:hover:not(:disabled) {
  background: var(--cl-bg-card);
  border-color: var(--cl-accent-orange);
}

.cl-button--secondary:focus-visible {
  outline: 2px solid var(--cl-accent-orange);
  outline-offset: 2px;
}

/* ==========================================================================
   9. Footer Grid (Widgets)
   ========================================================================== */

.cl-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cl-space-xl);
}

@media (min-width: 768px) {
  .cl-footer-grid {
    grid-template-columns: 1fr 2fr;
  }
}

/* ==========================================================================
   10. AI Readability Widget
   ========================================================================== */

.cl-readability-widget {
  background: var(--cl-bg-card);
  border: 1px solid var(--cl-border-subtle);
  border-radius: var(--cl-radius-lg);
  padding: var(--cl-space-xl);
}

.cl-widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--cl-space-xl);
  flex-wrap: wrap;
  gap: var(--cl-space-md);
}

.cl-widget-title {
  font-family: var(--cl-font-brand);
  font-size: var(--cl-text-lg);
  font-weight: 600;
  color: var(--cl-text-primary);
  margin: 0;
}

.cl-badge {
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-xs);
  font-weight: 500;
  padding: var(--cl-space-xs) var(--cl-space-md);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cl-badge--coming-soon {
  background: rgba(107, 114, 128, 0.2);
  color: var(--cl-text-muted);
  border: 1px solid var(--cl-status-inactive);
}

.cl-readability-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--cl-space-lg);
  padding: var(--cl-space-2xl) 0;
}

.cl-chart-placeholder {
  width: 120px;
  height: 120px;
  opacity: 0.5;
}

.cl-placeholder-text {
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-sm);
  color: var(--cl-text-muted);
  text-align: center;
  margin: 0;
}

/* ==========================================================================
   11. SEO Plugins Widget
   ========================================================================== */

.cl-seo-plugins-widget {
  background: var(--cl-bg-card);
  border: 1px solid var(--cl-border-subtle);
  border-radius: var(--cl-radius-lg);
  padding: var(--cl-space-xl);
}

.cl-plugin-list {
  list-style: none;
  padding: 0;
  margin: var(--cl-space-lg) 0;
  display: flex;
  flex-direction: column;
  gap: var(--cl-space-md);
}

.cl-plugin-item {
  display: flex;
  align-items: flex-start;
  gap: var(--cl-space-md);
  padding: var(--cl-space-md);
  background: var(--cl-bg-secondary);
  border: 1px solid var(--cl-border-subtle);
  border-radius: var(--cl-radius-md);
}

.cl-plugin-icon {
  width: 32px;
  height: 32px;
  background: var(--cl-bg-card);
  border-radius: var(--cl-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cl-plugin-icon .cl-icon {
  width: 20px;
  height: 20px;
  fill: var(--cl-text-secondary);
}

.cl-plugin-info {
  flex: 1;
}

.cl-plugin-name {
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-base);
  font-weight: 600;
  color: var(--cl-text-primary);
  margin: 0 0 var(--cl-space-xs);
}

.cl-plugin-impact {
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-sm);
  color: var(--cl-text-secondary);
  margin: 0;
}

.cl-impact-label {
  color: var(--cl-status-warning);
  font-weight: 500;
}

.cl-impact-label--ok {
  color: var(--cl-status-active);
}

/* Details Element Styling */
.cl-plugin-details {
  margin-top: var(--cl-space-lg);
  border-top: 1px solid var(--cl-border-subtle);
  padding-top: var(--cl-space-lg);
}

.cl-plugin-details summary {
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-sm);
  font-weight: 500;
  color: var(--cl-accent-orange);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--cl-space-sm);
}

.cl-plugin-details summary::-webkit-details-marker {
  display: none;
}

.cl-plugin-details summary::before {
  content: '▶';
  font-size: var(--cl-text-xs);
  transition: transform var(--cl-transition-fast);
}

.cl-plugin-details[open] summary::before {
  transform: rotate(90deg);
}

.cl-plugin-details summary:hover {
  color: var(--cl-accent-orange-hover);
}

.cl-plugin-details-content {
  margin-top: var(--cl-space-md);
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-sm);
  color: var(--cl-text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   12. Skeleton Loaders
   ========================================================================== */

.cl-skeleton {
  pointer-events: none;
  opacity: 0.6;
}

.cl-skeleton-header,
.cl-skeleton-text {
  background: linear-gradient(
    90deg,
    var(--cl-bg-secondary) 25%,
    var(--cl-bg-card) 50%,
    var(--cl-bg-secondary) 75%
  );
  background-size: 200% 100%;
  animation: cl-loading 1.5s ease-in-out infinite;
  border-radius: var(--cl-radius-sm);
}

.cl-skeleton-header {
  height: 24px;
  width: 40%;
  margin-bottom: var(--cl-space-md);
}

.cl-skeleton-text {
  height: 16px;
  margin-bottom: var(--cl-space-sm);
}

.cl-skeleton-text--short {
  width: 60%;
}

@keyframes cl-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ==========================================================================
   13. Admin Notices
   ========================================================================== */

.cl-admin-notice {
  display: flex;
  align-items: flex-start;
  gap: var(--cl-space-md);
  padding: var(--cl-space-lg);
  border-radius: var(--cl-radius-md);
  margin-bottom: var(--cl-space-2xl);
}

.cl-admin-notice--info {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid #3B82F6;
  color: #93C5FD;
}

.cl-admin-notice--success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--cl-status-active);
  color: var(--cl-status-active);
}

.cl-admin-notice--warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--cl-status-warning);
  color: var(--cl-status-warning);
}

.cl-notice-content {
  flex: 1;
}

.cl-notice-content p {
  margin: 0;
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-sm);
  line-height: 1.5;
}

/* ==========================================================================
   14. Empty States
   ========================================================================== */

.cl-empty-state {
  text-align: center;
  padding: var(--cl-space-4xl) var(--cl-space-xl);
}

.cl-empty-icon {
  width: 64px;
  height: 64px;
  fill: var(--cl-text-muted);
  margin-bottom: var(--cl-space-lg);
}

.cl-empty-title {
  font-family: var(--cl-font-brand);
  font-size: var(--cl-text-xl);
  font-weight: 600;
  color: var(--cl-text-primary);
  margin: 0 0 var(--cl-space-sm);
}

.cl-empty-description {
  font-family: var(--cl-font-body);
  font-size: var(--cl-text-base);
  color: var(--cl-text-secondary);
  margin: 0;
}

/* ==========================================================================
   15. Reduced Motion Support
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   16. Responsive Adjustments
   ========================================================================== */

@media (max-width: 640px) {
  .wrap.citelayer-dashboard {
    padding: var(--cl-space-lg);
  }
  
  .cl-dashboard-title {
    font-size: var(--cl-text-2xl);
  }
  
  .cl-preview-footer {
    flex-direction: column;
  }
  
  .cl-button {
    width: 100%;
  }
}

/* ==========================================================================
   17. High Contrast Mode Support
   ========================================================================== */

@media (prefers-contrast: high) {
  .cl-layer-card {
    border-width: 2px;
  }
  
  .cl-button--primary {
    border: 2px solid currentColor;
  }
  
  .cl-status-indicator {
    border: 2px solid currentColor;
  }
}

/* ==========================================================================
   18. Print Styles
   ========================================================================== */

@media print {
  .cl-preview-close,
  .cl-button,
  .cl-layer-link {
    display: none !important;
  }
  
  .cl-layer-card {
    page-break-inside: avoid;
  }
}