/**
 * Academia Design System
 * Core CSS Variables, Base Styles, and Component Library
 * 
 * @author Academia Team
 * @version 1.0.0
 */

/* ========================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ======================================== */

:root {
  /* Primary Colors */
  --color-primary: #2DB84C;
  --color-primary-hover: #25A043;
  --color-primary-light: #E8F8EC;
  --color-primary-glow: rgba(45, 184, 76, 0.4);

  /* Accent Colors */
  --color-accent-gold: #F5A623;
  --color-accent-gold-glow: rgba(245, 166, 35, 0.3);
  --color-accent-blue: #4A90D9;
  --color-accent-blue-glow: rgba(74, 144, 217, 0.3);
  --color-orange: #FF6B35;

  /* Semantic Colors */
  --color-error: #FF4444;
  --color-success: #2DB84C;
  --color-warning: #F5A623;

  /* Typography */
  --font-family-primary: 'Almarai', 'Noto Sans Arabic', sans-serif;
  --font-family-secondary: 'Montserrat', 'Inter', sans-serif;

  /* Spacing Scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 50%;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.2);
  --shadow-glow-primary: 0 8px 30px var(--color-primary-glow);
  --shadow-glow-gold: 0 8px 30px var(--color-accent-gold-glow);

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 72px;
}

/* Dark Theme (Default) */
[data-theme="dark"] {
  --color-bg: #0A0A0F;
  --color-bg-gradient: linear-gradient(135deg, #0A0A0F 0%, #0F1A14 50%, #0A0A0F 100%);
  --color-surface: #1A1A2E;
  --color-surface-elevated: #252538;
  --color-glass: rgba(255, 255, 255, 0.03);
  --color-glass-border: rgba(255, 255, 255, 0.08);
  --color-glass-hover: rgba(255, 255, 255, 0.06);
  --color-text: #FFFFFF;
  --color-text-muted: #8A8A9A;
  --color-text-dim: #5A5A6A;
}

/* Light Theme */
[data-theme="light"] {
  --color-bg: #F5F7FA;
  --color-bg-gradient: linear-gradient(135deg, #F5F7FA 0%, #E8F8EC 50%, #F5F7FA 100%);
  --color-surface: #FFFFFF;
  --color-surface-elevated: #FFFFFF;
  --color-glass: rgba(0, 0, 0, 0.03);
  --color-glass-border: rgba(0, 0, 0, 0.1);
  --color-glass-hover: rgba(0, 0, 0, 0.06);
  --color-text: #1A1A2E;
  --color-text-muted: #5A5A6A;
  --color-text-dim: #8A8A9A;
}

/* Light mode specific overrides */
[data-theme="light"] .bg-animation {
  background: linear-gradient(135deg, #F5F7FA 0%, #E8F8EC 30%, #F0F8FF 70%, #F5F7FA 100%);
}

[data-theme="light"] .grid-overlay {
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.08) 1px, transparent 1px);
}

[data-theme="light"] .glass-card,
[data-theme="light"] .sidebar,
[data-theme="light"] .stat-card,
[data-theme="light"] .card {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .sidebar {
  background: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .btn-secondary {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.15);
  color: var(--color-text);
}

[data-theme="light"] .input-group input {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.15);
  color: var(--color-text);
}

[data-theme="light"] .control-btn,
[data-theme="light"] .lang-toggle {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .search-box {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .notification-btn {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(0, 0, 0, 0.15);
}

/* ========================================
   CSS RESET & BASE STYLES
   ======================================== */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-primary);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
}

/* Links */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-hover);
}

/* Focus States (Accessibility) */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ========================================
   ANIMATED BACKGROUND
   ======================================== */

.bg-animation {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: var(--color-bg-gradient);
  overflow: hidden;
  pointer-events: none;
}

.bg-animation::before {
  content: '';
  position: absolute;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  top: -300px;
  right: -300px;
  animation: bgFloat 25s ease-in-out infinite;
  opacity: 0.5;
}

.bg-animation::after {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--color-accent-gold-glow) 0%, transparent 70%);
  bottom: -200px;
  left: -200px;
  animation: bgFloat 18s ease-in-out infinite reverse;
  opacity: 0.4;
}

@keyframes bgFloat {

  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }

  33% {
    transform: translate(40px, -40px) rotate(5deg);
  }

  66% {
    transform: translate(-30px, 30px) rotate(-5deg);
  }
}

/* Grid Overlay */
.grid-overlay {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--color-glass-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-glass-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.2;
  z-index: 1;
  pointer-events: none;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--space-md);
}

.text-muted {
  color: var(--color-text-muted);
}

.text-primary {
  color: var(--color-primary);
}

.text-center {
  text-align: center;
}

/* ========================================
   GLASS CARD COMPONENT
   ======================================== */

.glass-card {
  background: var(--color-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}

.glass-card:hover {
  background: var(--color-glass-hover);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* ========================================
   BUTTON COMPONENTS
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-family-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, #25A043 100%);
  color: white;
  box-shadow: var(--shadow-glow-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px var(--color-primary-glow);
}

.btn-secondary {
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  color: var(--color-text);
}

.btn-secondary:hover {
  background: var(--color-glass-hover);
  border-color: var(--color-primary);
}

.btn-gold {
  background: linear-gradient(135deg, var(--color-accent-gold), var(--color-orange));
  color: white;
}

.btn-blue {
  background: linear-gradient(135deg, var(--color-accent-blue), #6366F1);
  color: white;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-full);
}

/* ========================================
   INPUT COMPONENTS
   ======================================== */

.input-group {
  position: relative;
  margin-bottom: var(--space-lg);
}

.input-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.input-group input,
.input-group textarea {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  padding-right: 50px;
  font-size: 1rem;
  font-family: var(--font-family-primary);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);
  background: var(--color-glass);
  color: var(--color-text);
  transition: all var(--transition-base);
}

.input-group input:focus,
.input-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-glow);
}

.input-group input::placeholder,
.input-group textarea::placeholder {
  color: var(--color-text-dim);
}

.input-group .input-icon {
  position: absolute;
  right: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
  margin-top: 12px;
  color: var(--color-text-muted);
  font-size: 1.2rem;
  pointer-events: none;
}

/* ========================================
   PROGRESS COMPONENTS
   ======================================== */

.progress-ring {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: conic-gradient(var(--color-primary) var(--progress, 68%), var(--color-glass-border) 0);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.progress-ring::before {
  content: '';
  position: absolute;
  width: calc(100% - 16px);
  height: calc(100% - 16px);
  background: var(--color-bg);
  border-radius: var(--radius-full);
}

.progress-ring span {
  position: relative;
  z-index: 1;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
}

.progress-bar {
  height: 6px;
  background: var(--color-glass-border);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width var(--transition-slow);
}

.progress-bar-fill.primary {
  background: var(--color-primary);
}

.progress-bar-fill.gold {
  background: var(--color-accent-gold);
}

.progress-bar-fill.blue {
  background: var(--color-accent-blue);
}

/* ========================================
   SIDEBAR NAVIGATION
   ======================================== */

.sidebar {
  position: fixed;
  right: 0;
  top: 0;
  bottom: 0;
  width: 260px;
  background: var(--color-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--color-glass-border);
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: var(--space-md);
}

/* LTR (English) - Sidebar on left */
[dir="ltr"] .sidebar {
  right: auto;
  left: 0;
  border-left: none;
  border-right: 1px solid var(--color-glass-border);
}

.sidebar-logo {
  font-size: 1.4rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-glass-border);
}

.sidebar-logo .highlight {
  color: var(--color-primary);
  text-shadow: 0 0 20px var(--color-primary-glow);
}

/* Logo Image for Sidebar */
.sidebar-logo-img {
  max-width: 140px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.nav-menu {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  font-size: 0.9rem;
}

.nav-item:hover {
  background: var(--color-glass-hover);
  color: var(--color-text);
}

.nav-item.active {
  background: linear-gradient(135deg, var(--color-primary-glow) 0%, transparent 100%);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  font-weight: 500;
}

.nav-item i {
  font-size: 1.2rem;
  width: 20px;
  text-align: center;
}

.nav-divider {
  height: 1px;
  background: var(--color-glass-border);
  margin: var(--space-sm) 0;
}

/* ========================================
   USER PROFILE COMPONENT
   ======================================== */

.user-profile {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-glass);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-sm);
  margin-top: auto;
}

.user-avatar {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-gold));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: white;
}

.user-info {
  flex: 1;
  overflow: hidden;
}

.user-name {
  font-weight: 600;
  font-size: 1rem;
}

.user-role {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ========================================
   STAT CARDS
   ======================================== */

.stat-card {
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.stat-icon.primary {
  background: linear-gradient(135deg, var(--color-primary-glow), transparent);
  color: var(--color-primary);
}

.stat-icon.gold {
  background: linear-gradient(135deg, var(--color-accent-gold-glow), transparent);
  color: var(--color-accent-gold);
}

.stat-icon.blue {
  background: linear-gradient(135deg, var(--color-accent-blue-glow), transparent);
  color: var(--color-accent-blue);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ========================================
   STREAK BADGE
   ======================================== */

.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.2) 0%, rgba(245, 166, 35, 0.2) 100%);
  border: 1px solid rgba(255, 107, 53, 0.4);
  border-radius: var(--radius-lg);
  font-weight: 600;
  color: var(--color-orange);
}

.streak-badge i {
  font-size: 1.2rem;
}

/* ========================================
   MIA AI ASSISTANT
   ======================================== */

.mia-fab {
  position: fixed;
  bottom: var(--space-xl);
  left: var(--space-xl);
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-glow-primary);
  transition: all var(--transition-base);
  z-index: 1000;
  overflow: hidden;
}

/* LTR (English) - MIA moves to right */
[dir="ltr"] .mia-fab {
  left: auto;
  right: var(--space-xl);
}

.mia-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 40px var(--color-primary-glow);
}

.mia-fab video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
  mix-blend-mode: screen;
  /* Makes black background transparent */
}

.mia-fab.pulsing {
  animation: miaPulse 2s ease-in-out infinite;
}

@keyframes miaPulse {

  0%,
  100% {
    box-shadow: var(--shadow-glow-primary);
  }

  50% {
    box-shadow: 0 8px 50px var(--color-primary-glow), 0 0 0 10px rgba(45, 184, 76, 0.1);
  }
}

.mia-tooltip {
  position: fixed;
  bottom: 110px;
  left: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  max-width: 280px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.5s ease forwards;
  z-index: 999;
}

.mia-tooltip::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 30px;
  width: 16px;
  height: 16px;
  background: var(--color-surface);
  border-right: 1px solid var(--color-glass-border);
  border-bottom: 1px solid var(--color-glass-border);
  transform: rotate(45deg);
}

/* LTR (English) - Tooltip on right side */
[dir="ltr"] .mia-tooltip {
  left: auto;
  right: var(--space-lg);
}

[dir="ltr"] .mia-tooltip::after {
  left: auto;
  right: 30px;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   CONTROLS TOOLBAR
   ======================================== */

.controls-toolbar {
  position: fixed;
  top: var(--space-lg);
  left: var(--space-lg);
  z-index: 1001;
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.control-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  width: 40px;
  height: 40px;
  padding: 0;
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-base);
}

.control-btn:hover {
  background: var(--color-glass-hover);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.control-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--color-glass-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
}

.lang-toggle:hover {
  background: var(--color-glass-hover);
  border-color: var(--color-primary);
}

.lang-toggle i {
  font-size: 1rem;
}

/* Bilingual Support */
[data-lang="en"] .text-ar {
  display: none;
}

[data-lang="ar"] .text-en {
  display: none;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-sm {
  gap: var(--space-sm);
}

.gap-md {
  gap: var(--space-md);
}

.gap-lg {
  gap: var(--space-lg);
}

.mt-sm {
  margin-top: var(--space-sm);
}

.mt-md {
  margin-top: var(--space-md);
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mb-sm {
  margin-bottom: var(--space-sm);
}

.mb-md {
  margin-bottom: var(--space-md);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

/* ========================================
   RESPONSIVE BREAKPOINTS
   ======================================== */

@media (max-width: 1200px) {
  .sidebar {
    width: 80px;
    padding: var(--space-md);
  }

  .sidebar-logo span,
  .nav-item span,
  .user-info {
    display: none;
  }

  .nav-item {
    justify-content: center;
    padding: var(--space-md);
  }

  .user-profile {
    justify-content: center;
    padding: var(--space-md);
  }

  :root {
    --sidebar-width: 80px;
  }
}

@media (max-width: 768px) {
  .sidebar {
    display: none;
  }

  :root {
    --sidebar-width: 0px;
  }

  .mia-fab {
    width: 56px;
    height: 56px;
    bottom: var(--space-md);
    left: var(--space-md);
  }
}

/* Ultra-small phones (320px) */
@media (max-width: 360px) {
  :root {
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 20px;
  }

  .btn-primary {
    padding: 10px 16px;
    font-size: 0.85rem;
  }

  .glass-card {
    padding: var(--space-sm);
  }

  .mia-fab {
    width: 48px;
    height: 48px;
    bottom: 8px;
    left: 8px;
  }

  /* LTR (English) - MIA on right for 320px */
  [dir="ltr"] .mia-fab {
    left: auto;
    right: 8px;
  }
}

/* ========================================
   ACCESSIBILITY ENHANCEMENTS
   ======================================== */

/* Enhanced Focus Indicators */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(45, 184, 76, 0.25);
}

/* Interactive elements should have visible focus */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Remove outline for mouse users on certain elements */
button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
  outline: none;
  box-shadow: none;
}

/* Skip Link for Keyboard Navigation */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px 16px;
  z-index: 10000;
  text-decoration: none;
  font-weight: 600;
  border-radius: 0 0 8px 0;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

/* Screen Reader Only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Reduced Motion Preferences */
@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;
  }

  /* Disable specific animations */
  .mia-fab.pulsing {
    animation: none;
  }

  .bg-animation {
    display: none;
  }

  .glass-card:hover {
    transform: none;
  }

  .btn-primary:hover {
    transform: none;
  }

  .stat-card:hover {
    transform: none;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --color-glass-border: rgba(255, 255, 255, 0.5);
    --color-text-muted: rgba(255, 255, 255, 0.9);
  }

  .glass-card,
  .btn-secondary,
  .input-group input {
    border-width: 2px;
  }
}

/* Forced Colors Mode (Windows High Contrast) */
@media (forced-colors: active) {

  .btn-primary,
  .btn-secondary {
    border: 2px solid currentColor;
  }

  :focus-visible {
    outline: 3px solid currentColor;
    outline-offset: 2px;
  }
}