/* ================================================================
   PHASE 2A: FOCUS MANAGEMENT & KEYBOARD ACCESSIBILITY
   ================================================================

   Comprehensive focus management system with WCAG AA compliant
   focus indicators (3:1 contrast minimum), focus trap utilities,
   and keyboard navigation enhancements.

   Lines: ~3270-3450 (~180 lines)
   Classes: 35+ focus management utilities
   ================================================================ */

/* -------------------- Global Focus Reset -------------------- */

/* Remove default outline for mouse users, keep for keyboard */
*:focus {
  outline: none;
}

/* Enhanced focus-visible for keyboard navigation (WCAG AA: 3:1 contrast) */
*:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  transition: outline-offset 0.2s ease;
}

/* -------------------- Button Focus States -------------------- */

.btn:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px rgba(0, 119, 182, 0.15);
}

.btn-cta:focus-visible {
  outline: 3px solid white;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.3);
}

/* -------------------- Interactive Card Focus -------------------- */

.metric-card:focus-visible,
.scenario-card:focus-visible,
.dashboard-card:focus-visible,
.dashboard-card-interactive:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12), 0 0 0 5px rgba(0, 119, 182, 0.15);
  transform: translateY(-2px);
}

.phase-card:focus-visible,
.value-chain-card:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

/* -------------------- Form Input Focus -------------------- */

input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.feedback-textarea:focus-visible,
.calculator-input:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 0;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(0, 119, 182, 0.1);
}

/* -------------------- Rating Button Focus -------------------- */

.rating-btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px rgba(0, 119, 182, 0.15);
  transform: scale(1.15);
}

.rating-btn.selected:focus-visible {
  outline: 3px solid var(--color-primary);
  box-shadow: 0 0 0 5px rgba(123, 44, 191, 0.2);
}

/* -------------------- Tab Navigation Focus -------------------- */

.metric-modal-tab:focus-visible,
.tab-button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: -3px;
  z-index: 1;
}

.metric-modal-tab.active:focus-visible,
.tab-button.active:focus-visible {
  outline: 3px solid white;
  box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.3);
}

/* -------------------- Link Focus -------------------- */

a:focus-visible,
.nav-link:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

/* -------------------- Modal Focus Management -------------------- */

/* Focus trap container - prevents focus from leaving modal */
.focus-trap {
  position: relative;
}

/* First and last focusable sentinels for focus wrapping */
.focus-trap::before,
.focus-trap::after {
  content: '';
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* Modal overlay focus (for screen readers) */
.modal-overlay:focus-visible {
  outline: none; /* Overlay itself shouldn't show focus */
}

/* Modal content container focus */
.modal-content:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: -3px;
}

/* Close button focus (high priority) */
.modal-close:focus-visible,
.modal-close-btn:focus-visible {
  outline: 3px solid var(--color-error);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px rgba(220, 38, 38, 0.15);
}

/* -------------------- Skip Links (Accessibility) -------------------- */

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 0 0 var(--border-radius-md) 0;
  text-decoration: none;
  font-weight: 600;
  z-index: 10000;
  transition: top 0.3s ease;
}

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

/* -------------------- Focus Ring Variants -------------------- */

.focus-ring-primary:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px rgba(123, 44, 191, 0.15);
}

.focus-ring-accent:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px rgba(0, 119, 182, 0.15);
}

.focus-ring-success:focus-visible {
  outline: 3px solid var(--color-success);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px rgba(34, 197, 94, 0.15);
}

.focus-ring-error:focus-visible {
  outline: 3px solid var(--color-error);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px rgba(220, 38, 38, 0.15);
}

.focus-ring-warning:focus-visible {
  outline: 3px solid var(--color-warning);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px rgba(245, 158, 11, 0.15);
}

/* -------------------- Focus Utilities -------------------- */

/* Remove focus styles (use sparingly, ensure alternative indication) */
.focus-none:focus-visible {
  outline: none;
  box-shadow: none;
}

/* Inset focus ring (for compact elements) */
.focus-inset:focus-visible {
  outline-offset: -3px;
}

/* Thick focus ring (for high visibility) */
.focus-thick:focus-visible {
  outline-width: 4px;
  outline-offset: 3px;
}

/* Focus with glow effect */
.focus-glow:focus-visible {
  box-shadow: 0 0 0 4px rgba(0, 119, 182, 0.15),
              0 0 12px 2px rgba(0, 119, 182, 0.3);
}

/* -------------------- Keyboard Navigation Helpers -------------------- */

/* Visual indicator for keyboard navigation mode */
body.keyboard-nav *:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Hide focus for mouse/touch navigation */
body.mouse-nav *:focus:not(:focus-visible) {
  outline: none;
}

/* -------------------- Focus Management JavaScript Helpers -------------------- */

/* Class applied to elements that should trap focus */
[data-focus-trap="true"] {
  position: relative;
}

/* Class for elements that should receive focus on mount */
[data-autofocus="true"] {
  /* Handled by JS, no CSS needed */
}

/* -------------------- High Contrast Mode Support -------------------- */

@media (prefers-contrast: high) {
  *:focus-visible {
    outline-width: 4px;
    outline-offset: 3px;
  }

  .btn:focus-visible,
  .metric-card:focus-visible,
  .dashboard-card:focus-visible {
    outline-width: 4px;
  }
}

/* ================================================================
   PHASE 2B: ANIMATIONS & REDUCED-MOTION SUPPORT
   ================================================================

   Comprehensive animation system with prefers-reduced-motion support.
   All animations respect user motion preferences and accessibility needs.

   Lines: ~3540-3800 (~260 lines)
   Animations: 20+ keyframes and transitions
   ================================================================ */

/* -------------------- Animation Keyframes -------------------- */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

@keyframes slideInUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInDown {
  from {
    transform: translateY(-30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    transform: translateX(-30px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(30px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes modalOpen {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes modalBackdropFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes successToastSlide {
  0% {
    transform: translateY(-100%);
    opacity: 0;
  }
  10% {
    transform: translateY(0);
    opacity: 1;
  }
  90% {
    transform: translateY(0);
    opacity: 1;
  }
  100% {
    transform: translateY(-100%);
    opacity: 0;
  }
}

/* -------------------- Default Animations (Motion Enabled) -------------------- */

/* Modal animations */
.modal-backdrop.active {
  animation: modalBackdropFadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-backdrop.active .modal {
  animation: modalOpen 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Card hover transitions */
.metric-card,
.dashboard-card,
.dashboard-card-interactive,
.context-card,
.loop-card,
.phase-card {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.3s ease,
              border-color 0.3s ease;
}

.metric-card:hover,
.dashboard-card-interactive:hover,
.context-card:hover,
.loop-card:hover {
  transform: translateY(-4px);
}

/* Button transitions */
.btn,
.btn-primary,
.btn-secondary,
.btn-cta {
  transition: background 0.3s ease,
              transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.3s ease,
              color 0.3s ease;
}

.btn:hover,
.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-2px);
}

.btn:active,
.btn-primary:active,
.btn-secondary:active {
  transform: translateY(0);
}

/* Tab transitions */
.metric-modal-tab,
.tab-button {
  transition: background 0.3s ease,
              color 0.3s ease,
              border-color 0.3s ease,
              transform 0.2s ease;
}

/* Rating button transitions */
.rating-btn {
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
              background 0.3s ease,
              border-color 0.3s ease,
              box-shadow 0.3s ease;
}

.rating-btn:hover {
  transform: scale(1.1);
}

.rating-btn.selected {
  transform: scale(1.05);
}

/* Success toast animation */
.success-toast {
  animation: successToastSlide 3.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Progressive disclosure animations */
.dashboard-section,
.card,
.metric-card,
.context-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.dashboard-section.visible,
.card.visible,
.metric-card.visible,
.context-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animations for card grids */
.metric-card:nth-child(1) { transition-delay: 0.05s; }
.metric-card:nth-child(2) { transition-delay: 0.1s; }
.metric-card:nth-child(3) { transition-delay: 0.15s; }
.metric-card:nth-child(4) { transition-delay: 0.2s; }
.metric-card:nth-child(5) { transition-delay: 0.25s; }
.metric-card:nth-child(6) { transition-delay: 0.3s; }

.context-card:nth-child(1) { transition-delay: 0.05s; }
.context-card:nth-child(2) { transition-delay: 0.1s; }
.context-card:nth-child(3) { transition-delay: 0.15s; }

/* Input focus transitions */
input,
textarea,
select,
.feedback-textarea {
  transition: border-color 0.3s ease,
              box-shadow 0.3s ease;
}

/* Loading spinner */
.spinner {
  animation: spin 1s linear infinite;
}

/* -------------------- Reduced Motion Support -------------------- */

/* Disable all animations and transitions for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  /* Modal: Keep fade but remove scale/bounce */
  .modal-backdrop.active .modal {
    animation: none;
    opacity: 1;
    transform: none;
  }

  /* Cards: Remove transform, keep opacity fade */
  .metric-card:hover,
  .dashboard-card-interactive:hover,
  .context-card:hover,
  .loop-card:hover {
    transform: none;
  }

  /* Buttons: Remove transforms */
  .btn:hover,
  .btn-primary:hover,
  .btn-secondary:hover,
  .btn:active,
  .btn-primary:active,
  .btn-secondary:active {
    transform: none;
  }

  /* Rating buttons: Remove scale */
  .rating-btn:hover,
  .rating-btn.selected,
  .rating-btn:focus-visible {
    transform: none;
  }

  /* Progressive disclosure: Instant visibility */
  .dashboard-section,
  .card,
  .metric-card,
  .context-card {
    opacity: 1;
    transform: none;
    transition: none;
  }

  /* Remove stagger delays */
  .metric-card:nth-child(n),
  .context-card:nth-child(n) {
    transition-delay: 0s;
  }

  /* Success toast: Simple fade only */
  .success-toast {
    animation: fadeIn 0.2s ease-in;
  }

  /* Loading spinner: Reduce speed */
  .spinner {
    animation-duration: 2s;
  }

  /* Focus indicators: Keep but instant */
  *:focus-visible {
    transition: none;
    outline-offset: 2px;
  }
}

/* -------------------- Animation Utilities -------------------- */

/* Fade animations */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

.fade-out {
  animation: fadeOut 0.5s ease-out;
}

/* Slide animations */
.slide-in-up {
  animation: slideInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-down {
  animation: slideInDown 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-left {
  animation: slideInLeft 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-right {
  animation: slideInRight 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Scale animation */
.scale-in {
  animation: scaleIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Pulse animation */
.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Bounce animation */
.bounce {
  animation: bounce 1s ease-in-out infinite;
}

/* Shimmer effect (loading skeleton) */
.shimmer {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 2000px 100%;
  animation: shimmer 2s linear infinite;
}

/* Transition timing utilities */
.transition-fast {
  transition-duration: 0.15s;
}

.transition-base {
  transition-duration: 0.3s;
}

.transition-slow {
  transition-duration: 0.5s;
}

.transition-slower {
  transition-duration: 0.7s;
}

/* Transition easing utilities */
.ease-in {
  transition-timing-function: cubic-bezier(0.4, 0, 1, 1);
}

.ease-out {
  transition-timing-function: cubic-bezier(0, 0, 0.2, 1);
}

.ease-in-out {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

.ease-bounce {
  transition-timing-function: cubic-bezier(0.34, 1.56, 0.64, 1);
}


/* ================================================================
   PHASE 2C: DARK MODE COMPONENT ADJUSTMENTS
   ================================================================

   Component-specific dark mode styling.
   Theme variables are defined in 01-theme.css

   Lines: ~3990-4050 (~60 lines)
   ================================================================ */

/* -------------------- Dark Mode Toggle Button -------------------- */

.theme-toggle {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--border-color);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.3s ease;
  z-index: 1000;
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

.theme-toggle:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Icon states */
.theme-toggle[data-theme="light"]::before {
  content: "🌙";
}

.theme-toggle[data-theme="dark"]::before {
  content: "☀️";
}

/* === PHASE 3: CONTENT ENHANCEMENT === */

/* Modal Body Links */
.modal-body a {
  color: var(--color-primary);
  text-decoration: underline;
  transition: color 0.2s;
}

.modal-body a:hover {
  color: var(--color-accent);
  text-decoration-thickness: 2px;
}

.modal-body a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.modal-body a:visited {
  color: rgba(123, 44, 191, 0.7);
}

/* Modal Tables */
.modal-table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: collapse;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.modal-table th,
.modal-table td {
  padding: 0.875rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

.modal-table th {
  background: linear-gradient(135deg, rgba(123, 44, 191, 0.1) 0%, rgba(0, 184, 212, 0.1) 100%);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.modal-table tbody tr:hover {
  background-color: rgba(123, 44, 191, 0.05);
}

.modal-table td {
  color: var(--text-primary);
  font-size: 0.9375rem;
}

.modal-table td:first-child {
  font-weight: 500;
}

/* Alternating row colors */
.modal-table tbody tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.01);
}

/* Modal Code Blocks */
.modal-body pre {
  background: var(--color-gray-900);
  color: var(--color-gray-100);
  padding: 1rem;
  border-radius: var(--border-radius-md);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.5rem 0;
  line-height: 1.5;
  font-family: 'Courier New', 'Monaco', monospace;
  font-size: 0.875rem;
}

.modal-body code {
  color: inherit;
  background: transparent;
  padding: 0;
}

.modal-body p code {
  background: rgba(123, 44, 191, 0.1);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  color: var(--color-primary);
  font-size: 0.875em;
}

/* Modal Blockquotes */
.modal-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 1rem;
  margin: 1.5rem 0;
  background: rgba(0, 184, 212, 0.05);
  border-radius: var(--border-radius-md);
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.6;
}

.modal-body blockquote p {
  margin: 0;
}

/* Modal Lists Enhancement */
.modal-body ul {
  padding-left: 2rem;
}

.modal-body ol {
  padding-left: 2rem;
}

.modal-body li {
  margin-bottom: 0.75rem;
  line-height: 1.6;
  color: var(--text-primary);
}

/* Custom list styling for specific patterns */
.modal-list-arrows li::before {
  content: "→ ";
  color: var(--color-primary);
  font-weight: 600;
  margin-right: 0.5rem;
  margin-left: -1.5rem;
}

.modal-list-check li::before {
  content: "✓ ";
  color: var(--color-success);
  font-weight: 600;
  margin-right: 0.5rem;
  margin-left: -1.5rem;
}

.modal-list-warning li::before {
  content: "⚠ ";
  color: var(--color-warning);
  font-weight: 600;
  margin-right: 0.5rem;
  margin-left: -1.5rem;
}

/* Modal Empty State */
.modal-empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-tertiary);
}

.modal-empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.modal-empty-state-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.modal-empty-state-description {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
  line-height: 1.6;
}

/* Modal Spacing Audit - Consistent section spacing */
.modal-container > * + * {
  margin-top: 2rem;
}

.modal-container > .modal-hero {
  margin-bottom: 2rem;
}

.modal-container > .modal-section-card,
.modal-container > .card {
  margin-bottom: 1.5rem;
}

/* Responsive adjustments for Phase 3 */
@media (max-width: 768px) {
  .modal-table {
    font-size: 0.875rem;
  }

  .modal-table th,
  .modal-table td {
    padding: 0.75rem 1rem;
  }

  .modal-body pre {
    font-size: 0.8125rem;
    padding: 0.75rem;
  }

  .modal-body blockquote {
    padding: 0.75rem;
  }
}

@media (max-width: 640px) {
  .modal-table {
    display: block;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
  }

  .modal-body pre {
    font-size: 0.75rem;
    padding: 0.5rem;
  }

  .modal-body blockquote {
    padding: 0.5rem;
    font-size: 0.9375rem;
  }

  .modal-body ul,
  .modal-body ol {
    padding-left: 1.5rem;
  }
}