/**
 * Complexity Mode Styles
 * WCAG 2.2 AAA compliant
 * Reduces cognitive load for users with brain fog, fatigue, or cognitive disabilities
 */

/* ==========================================================================
   Complexity Toggle Button
   ========================================================================== */

#complexity-toggle {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 999;
  
  background: linear-gradient(135deg, #3d4eaa 0%, #4a2867 100%);
  color: white;
  border: 3px solid transparent;
  border-radius: 12px;
  padding: 12px 20px;
  
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  
  min-width: 160px;
  min-height: 44px;
}

#complexity-toggle:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
  border-color: #ffd54f;
}

#complexity-toggle:focus {
  outline: 3px solid #ffd54f;
  outline-offset: 2px;
  border-color: #ffd54f;
}

.complexity-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.complexity-label {
  font-size: 0.95rem;
  font-weight: 600;
}

.complexity-hint {
  font-size: 0.75rem;
  opacity: 0.9;
  font-weight: 400;
}

/* Mobile responsive */
@media (max-width: 768px) {
  #complexity-toggle {
    top: auto;
    bottom: 20px;
    right: 20px;
    min-width: 140px;
    padding: 10px 16px;
  }
  
  .complexity-label {
    font-size: 0.85rem;
  }
  
  .complexity-hint {
    font-size: 0.7rem;
  }
}

/* ==========================================================================
   Screen Reader Announcer (visually hidden)
   ========================================================================== */

#complexity-announcer {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ==========================================================================
   Content Visibility by Mode
   ========================================================================== */

/* Simple Mode - Hide detailed content */
body.complexity-simple .content-detailed,
body.complexity-simple [data-complexity="detailed"] {
  display: none !important;
}

/* Simple Mode - Show simplified content */
body.complexity-simple .content-simple,
body.complexity-simple [data-complexity="simple"] {
  display: block !important;
}

/* Standard Mode - Hide simple-only content */
body.complexity-standard .content-simple,
body.complexity-standard [data-complexity="simple"] {
  display: none !important;
}

/* Standard Mode - Show standard and detailed (but collapsed) */
body.complexity-standard .content-detailed,
body.complexity-standard [data-complexity="detailed"],
body.complexity-standard .content-standard,
body.complexity-standard [data-complexity="standard"] {
  display: block !important;
}

/* Detailed Mode - Show everything */
body.complexity-detailed .content-simple {
  display: none !important;
}

body.complexity-detailed .content-detailed,
body.complexity-detailed [data-complexity="detailed"],
body.complexity-detailed .content-standard,
body.complexity-detailed [data-complexity="standard"] {
  display: block !important;
}

/* ==========================================================================
   Progressive Disclosure (details/summary)
   ========================================================================== */

details.auto-collapse {
  margin: 1.5rem 0;
  padding: 1rem;
  background: var(--bg-elevated, #f8f9fa);
  border: 2px solid var(--border-color, #e0e0e0);
  border-radius: 8px;
  transition: border-color 0.2s ease;
}

details.auto-collapse:hover {
  border-color: var(--brand-color, #3d4eaa);
}

details.auto-collapse summary {
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
  transition: background 0.2s ease;
  
  /* Accessibility */
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

details.auto-collapse summary:hover {
  background: rgba(61, 78, 170, 0.1);
}

details.auto-collapse summary:focus {
  outline: 3px solid #ffd54f;
  outline-offset: 2px;
  background: rgba(61, 78, 170, 0.15);
}

/* Expand/collapse icon */
details.auto-collapse summary::before {
  content: '▶';
  display: inline-block;
  width: 1em;
  transition: transform 0.2s ease;
  color: var(--brand-color, #3d4eaa);
}

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

/* Content inside details */
details.auto-collapse .details-content {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color, #e0e0e0);
}

/* ==========================================================================
   Simple Language Styles
   ========================================================================== */

.content-simple {
  font-size: 1.1rem;
  line-height: 1.8;
  max-width: 65ch;
}

.content-simple h2 {
  font-size: 1.5rem;
  margin-top: 2rem;
}

.content-simple h3 {
  font-size: 1.25rem;
  margin-top: 1.5rem;
}

.content-simple p {
  margin-bottom: 1.5rem;
}

.content-simple ul,
.content-simple ol {
  margin-left: 0;
  padding-left: 1.5em;
}

.content-simple li {
  margin-bottom: 0.75rem;
}

/* ==========================================================================
   Mode-Specific Adjustments
   ========================================================================== */

/* Simple Mode: Larger fonts, more spacing */
body.complexity-simple {
  font-size: 1.1rem;
  line-height: 1.8;
}

body.complexity-simple h1 {
  font-size: 2rem;
}

body.complexity-simple h2 {
  font-size: 1.5rem;
}

body.complexity-simple h3 {
  font-size: 1.25rem;
}

/* Standard Mode: Default styling */
body.complexity-standard {
  /* Uses default site styles */
}

/* Detailed Mode: Compact, information-dense */
body.complexity-detailed {
  font-size: 0.95rem;
  line-height: 1.6;
}

body.complexity-detailed details.auto-collapse {
  margin: 1rem 0;
  padding: 0.75rem;
}

/* ==========================================================================
   Dark Mode Support
   ========================================================================== */

@media (prefers-color-scheme: dark) {
  details.auto-collapse {
    background: var(--bg-elevated, #1a202c);
    border-color: var(--border-color, #2d3748);
  }
  
  details.auto-collapse summary:hover {
    background: rgba(61, 78, 170, 0.2);
  }
}

/* ==========================================================================
   High Contrast Mode
   ========================================================================== */

body[data-contrast="high"] #complexity-toggle {
  background: #000 !important;
  color: #fff !important;
  border: 4px solid #fff !important;
}

body[data-contrast="high"] #complexity-toggle:hover,
body[data-contrast="high"] #complexity-toggle:focus {
  background: #fff !important;
  color: #000 !important;
}

body[data-contrast="high"] details.auto-collapse {
  background: #000 !important;
  border: 3px solid #fff !important;
  color: #fff !important;
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  #complexity-toggle {
    display: none !important;
  }
  
  /* Print detailed view always */
  .content-detailed,
  [data-complexity="detailed"] {
    display: block !important;
  }
  
  details.auto-collapse {
    border: 1px solid #000;
  }
  
  details.auto-collapse[open] summary::before {
    content: '';
  }
}