/**
 * GaugeSnap - Custom CSS
 * Minimal custom styles that complement Tailwind CSS
 * Focus on CSS variables, enhanced components, and accessibility
 */

/* ===== CSS VARIABLES ===== */
:root {
  /* Light Theme Colors (AA Contrast Compliant) */
  --color-slate-50: #f8fafc;
  --color-slate-100: #f1f5f9;
  --color-slate-200: #e2e8f0;
  --color-slate-300: #cbd5e1;
  --color-slate-400: #94a3b8;
  --color-slate-500: #64748b;
  --color-slate-600: #475569;
  --color-slate-700: #334155;
  --color-slate-800: #1e293b;
  --color-slate-900: #0f172a;

  --color-blue-50: #eff6ff;
  --color-blue-100: #dbeafe;
  --color-blue-200: #bfdbfe;
  --color-blue-300: #93c5fd;
  --color-blue-400: #60a5fa;
  --color-blue-500: #3b82f6;
  --color-blue-600: #2563eb;
  --color-blue-700: #1d4ed8;
  --color-blue-800: #1e40af;
  --color-blue-900: #1e3a8a;

  --color-cyan-50: #ecfeff;
  --color-cyan-100: #cffafe;
  --color-cyan-200: #a5f3fc;
  --color-cyan-300: #67e8f9;
  --color-cyan-400: #22d3ee;
  --color-cyan-500: #06b6d4;
  --color-cyan-600: #0891b2;
  --color-cyan-700: #0e7490;
  --color-cyan-800: #155e75;
  --color-cyan-900: #164e63;

  /* Light Theme Semantic Colors */
  --bg-primary: var(--color-slate-50);
  --bg-secondary: var(--color-slate-100);
  --bg-card: #ffffff;
  --text-primary: var(--color-slate-900);
  --text-secondary: var(--color-slate-600);
  --text-muted: var(--color-slate-500);
  --border-primary: var(--color-slate-200);
  --border-secondary: var(--color-slate-300);
  
  /* Brand Colors */
  --brand-primary: var(--color-blue-600);
  --brand-primary-hover: var(--color-blue-700);
  --brand-secondary: var(--color-cyan-600);
  --brand-accent: var(--color-slate-700);
  
  /* Interactive Colors */
  --interactive-primary: var(--color-blue-600);
  --interactive-primary-hover: var(--color-blue-700);
  --interactive-secondary: var(--color-slate-600);
  --interactive-secondary-hover: var(--color-slate-700);
  
  /* Status Colors */
  --success: #059669;
  --success-bg: #dcfce7;
  --warning: #d97706;
  --warning-bg: #fef3c7;
  --error: #dc2626;
  --error-bg: #fee2e2;
  --info: var(--color-blue-600);
  --info-bg: var(--color-blue-50);
  
  /* Shadows */
  --shadow-soft: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-medium: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-large: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Focus Ring */
  --focus-ring: 0 0 0 3px rgb(59 130 246 / 0.5);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Border Radius */
  --rounded-2xl: 1rem;
  --rounded-3xl: 1.5rem;
}

/* Dark Theme Variables */
html.dark {
  --bg-primary: var(--color-slate-900);
  --bg-secondary: var(--color-slate-800);
  --bg-card: var(--color-slate-800);
  --text-primary: var(--color-slate-50);
  --text-secondary: var(--color-slate-300);
  --text-muted: var(--color-slate-400);
  --border-primary: var(--color-slate-700);
  --border-secondary: var(--color-slate-600);
  
  /* Adjusted brand colors for dark theme */
  --brand-primary: var(--color-blue-500);
  --brand-primary-hover: var(--color-blue-400);
  --brand-secondary: var(--color-cyan-500);
  --brand-accent: var(--color-slate-300);
  
  --interactive-primary: var(--color-blue-500);
  --interactive-primary-hover: var(--color-blue-400);
  --interactive-secondary: var(--color-slate-400);
  --interactive-secondary-hover: var(--color-slate-300);
  
  /* Dark theme status colors */
  --success: #10b981;
  --success-bg: rgb(6 78 59 / 0.3);
  --warning: #f59e0b;
  --warning-bg: rgb(120 53 15 / 0.3);
  --error: #ef4444;
  --error-bg: rgb(127 29 29 / 0.3);
  --info: var(--color-blue-500);
  --info-bg: rgb(30 64 175 / 0.3);
  
  /* Adjusted shadows for dark theme */
  --shadow-soft: 0 1px 3px 0 rgb(0 0 0 / 0.3), 0 1px 2px -1px rgb(0 0 0 / 0.3);
  --shadow-medium: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-large: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.3), 0 8px 10px -6px rgb(0 0 0 / 0.3);
  
  --focus-ring: 0 0 0 3px rgb(96 165 250 / 0.5);
}

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

/* ===== THEME COMPONENT CLASSES ===== */
/* Main Layout Components */
.main-container {
  min-height: 100vh;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.section-primary {
  padding: 4rem 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

.section-secondary {
  padding: 4rem 0;
  background-color: var(--bg-card);
  color: var(--text-primary);
}

/* Card Components */
.card-primary {
  background-color: var(--bg-card);
  color: var(--text-primary);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-medium);
  padding: 2rem;
}

.card-secondary {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: 0.75rem;
  padding: 1.5rem;
}

/* Status Components - ใช้โทนสีเดียวกันทั้งเว็บ */
.alert-warning {
  background-color: var(--warning-bg);
  border: 1px solid var(--warning);
  border-left: 4px solid var(--warning);
  border-radius: 0.5rem;
  padding: 2rem;
  color: var(--text-primary);
}

.alert-error {
  background-color: var(--error-bg);
  border: 1px solid var(--error);
  border-left: 4px solid var(--error);
  border-radius: 0.5rem;
  padding: 2rem;
  color: var(--text-primary);
}

.alert-info {
  background-color: var(--info-bg);
  border: 1px solid var(--info);
  border-left: 4px solid var(--info);
  border-radius: 0.5rem;
  padding: 2rem;
  color: var(--text-primary);
}

.alert-success {
  background-color: var(--success-bg);
  border: 1px solid var(--success);
  border-left: 4px solid var(--success);
  border-radius: 0.5rem;
  padding: 2rem;
  color: var(--text-primary);
}

/* Warning Section Components - สำหรับข้อควรระวัง */
.warning-section {
  background: linear-gradient(135deg, var(--warning-bg) 0%, rgba(251, 191, 36, 0.1) 100%);
  border-radius: 1rem;
  padding: 2rem;
  border-left: 6px solid var(--warning);
}

.warning-title {
  color: var(--warning);
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.warning-content {
  color: var(--text-primary);
  line-height: 1.6;
}

/* Red Flag Components - สำหรับสัญญาณอันตราย */
.red-flag-section {
  background: linear-gradient(135deg, var(--error-bg) 0%, rgba(239, 68, 68, 0.1) 100%);
  border-radius: 1rem;
  padding: 2rem;
  border-left: 6px solid var(--error);
}

.red-flag-title {
  color: var(--error);
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Text Components */
.heading-primary {
  color: var(--text-primary);
  font-weight: 700;
  margin-bottom: 1rem;
}

.heading-secondary {
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

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

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

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

/* Interactive Components */
.btn-primary {
  background-color: var(--interactive-primary);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background-color: var(--interactive-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.btn-secondary {
  background-color: transparent;
  color: var(--interactive-secondary);
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--interactive-secondary);
  border-radius: 0.5rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary:hover {
  background-color: var(--interactive-secondary);
  color: var(--bg-card);
}

/* ===== TECHNOLOGY PAGE COMPONENTS ===== */
/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
  color: white;
  padding: 5rem 0;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  text-align: center;
}

.hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  text-align: center;
  max-width: 64rem;
  margin: 0 auto 2rem;
}

/* Content Sections */
.content-section-light {
  background-color: var(--bg-card);
  padding: 4rem 0;
}

.content-section-dark {
  background-color: var(--bg-primary);
  padding: 4rem 0;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

/* Feature Cards */
.feature-card-positive {
  background: linear-gradient(135deg, var(--success-bg) 0%, rgba(16, 185, 129, 0.05) 100%);
  border-radius: 1rem;
  padding: 2rem;
  border-left: 6px solid var(--success);
  transition: transform var(--transition-fast);
}

.feature-card-positive:hover {
  transform: translateY(-2px);
}

.feature-card-neutral {
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
  border-radius: 1rem;
  padding: 2rem;
  border-left: 6px solid var(--brand-primary);
  box-shadow: var(--shadow-medium);
  transition: transform var(--transition-fast);
}

.feature-card-neutral:hover {
  transform: translateY(-2px);
}

/* Status Indicators */
.status-experimental {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  color: #92400e;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-block;
}

html.dark .status-experimental {
  background: linear-gradient(135deg, rgba(146, 64, 14, 0.3) 0%, rgba(180, 83, 9, 0.3) 100%);
  color: #fbbf24;
}

.status-production {
  background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
  color: #166534;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  display: inline-block;
}

html.dark .status-production {
  background: linear-gradient(135deg, rgba(22, 101, 52, 0.3) 0%, rgba(21, 128, 61, 0.3) 100%);
  color: #4ade80;
}

/* Industry Application Cards */
.industry-card {
  background-color: var(--bg-card);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-medium);
  transition: all var(--transition-fast);
  border: 1px solid var(--border-primary);
}

.industry-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-large);
}

.industry-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.industry-title {
  color: var(--brand-primary);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.industry-description {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* ===== RESPONSIVE UTILITIES ===== */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .content-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .card-primary,
  .warning-section,
  .red-flag-section,
  .alert-warning,
  .alert-error,
  .alert-info,
  .alert-success {
    padding: 1.5rem;
  }
}

/* Mobile Menu Utilities */
.overflow-hidden {
  overflow: hidden !important;
  position: fixed !important;
  width: 100% !important;
}

/* Override for mobile menu open state */
body.overflow-hidden,
html.overflow-hidden {
  overflow: hidden !important;
  position: fixed !important;
  width: 100% !important;
  height: 100% !important;
}

.mobile-menu-container {
  max-height: calc(100vh - 4rem); /* จำกัดความสูงสูงสุด */
}

/* Mobile Menu Toggle Button - แสดงเฉพาะในหน้าจอเล็ก */
@media (max-width: 767px) {
  #mobile-menu-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
  }
}

@media (min-width: 768px) {
  #mobile-menu {
    display: none !important;
  }
  
  #mobile-menu-container {
    display: none !important;
  }
}

/* Mobile Menu Responsive Height */
#mobile-menu {
  width: 100%;
  min-height: auto;
  max-height: calc(100vh - 4rem);
  overflow: visible;
  z-index: 50 !important; /* Force higher z-index */
}

/* Force proper hidden state */
#mobile-menu.hidden {
  display: none !important;
}

/* Only show when not hidden */
#mobile-menu:not(.hidden) {
  display: block !important;
}

#mobile-menu > div {
  max-height: calc(100vh - 6rem); /* เผื่อ padding และ border */
}

/* Mobile Menu Shadow และ Rounded Corners */
#mobile-menu {
  border-bottom-left-radius: 0.5rem;
  border-bottom-right-radius: 0.5rem;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 39;
}

/* Scrollable Container */
.scrollable-container {
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-slate-400) transparent;
}

.scrollable-container::-webkit-scrollbar {
  width: 6px;
}

.scrollable-container::-webkit-scrollbar-track {
  background: transparent;
}

.scrollable-container::-webkit-scrollbar-thumb {
  background-color: var(--color-slate-400);
  border-radius: 3px;
}

/* Mobile Menu Animations */
.mobile-dropdown-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-in-out;
}

.mobile-dropdown-content.show {
  max-height: 500px;
}

.mobile-dropdown svg {
  transition: transform 0.2s ease-in-out;
}

.mobile-dropdown.open svg {
  transform: rotate(180deg);
}

/* ===== DESKTOP NAVIGATION ENHANCEMENTS ===== */

/* Multi-column dropdown for large menus */
.mega-dropdown {
  width: auto;
  min-width: 600px;
  max-width: 900px;
}

.mega-dropdown .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  padding: 1rem;
}

.mega-dropdown .grid-section {
  min-width: 180px;
}

.mega-dropdown .section-header {
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.5rem 0;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-primary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

html.dark .mega-dropdown .section-header {
  color: var(--color-slate-200);
  border-bottom-color: var(--color-slate-700);
}

.mega-dropdown .section-items {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mega-dropdown .section-items a {
  padding: 0.375rem 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  line-height: 1.4;
}

.mega-dropdown .section-items a:hover {
  color: var(--interactive-primary);
}

html.dark .mega-dropdown .section-items a {
  color: var(--color-slate-300);
}

html.dark .mega-dropdown .section-items a:hover {
  color: var(--color-blue-400);
}

/* Responsive adjustments for mega dropdown */
@media (max-width: 1024px) {
  .mega-dropdown {
    min-width: 500px;
    max-width: 700px;
  }
  
  .mega-dropdown .grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    padding: 0.75rem;
    gap: 0.75rem;
  }
}

@media (max-width: 768px) {
  .mega-dropdown {
    width: 100vw;
    max-width: 100vw;
    left: 0 !important;
    transform: none !important;
  }
  
  .mega-dropdown .grid {
    grid-template-columns: 1fr;
    padding: 0.5rem;
  }
}

/* ===== ENHANCED COMPONENTS ===== */

/* Enhanced Buttons */
.btn-enhanced {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 0.5rem;
  transition: all 0.2s ease-in-out;
  outline: none;
  box-shadow: var(--shadow-soft);
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-enhanced:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.5), var(--shadow-soft);
}

.btn-enhanced:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.btn-enhanced:active {
  transform: translateY(0);
  box-shadow: var(--shadow-soft);
}

.btn-primary-enhanced {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 0.5rem;
  transition: all 0.2s ease-in-out;
  background-color: var(--brand-primary);
  color: white;
  border: none;
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--shadow-soft);
}

.btn-primary-enhanced:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.5), var(--shadow-soft);
}

.btn-primary-enhanced:hover {
  background-color: var(--brand-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.btn-primary-enhanced:active {
  transform: translateY(0);
  box-shadow: var(--shadow-soft);
}

.btn-secondary-enhanced {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 0.5rem;
  transition: all 0.2s ease-in-out;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-primary);
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--shadow-soft);
}

.btn-secondary-enhanced:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgb(100 116 139 / 0.5), var(--shadow-soft);
}

.btn-secondary-enhanced:hover {
  background-color: var(--border-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-medium);
}

.btn-secondary-enhanced:active {
  transform: translateY(0);
  box-shadow: var(--shadow-soft);
}

/* Enhanced Cards */
.card-enhanced {
  background-color: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--rounded-2xl);
  box-shadow: var(--shadow-soft);
  padding: 1.5rem;
  transition: all 0.2s ease-in-out;
}

.card-enhanced:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-2px);
}

.card-interactive {
  background-color: var(--bg-card);
  border: 1px solid var(--border-primary);
  border-radius: var(--rounded-2xl);
  box-shadow: var(--shadow-soft);
  padding: 1.5rem;
  transition: all 0.2s ease-in-out;
  cursor: pointer;
  outline: none;
}

.card-interactive:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.5), var(--shadow-soft);
}

.card-interactive:hover {
  border-color: var(--brand-primary);
  box-shadow: var(--shadow-large);
  transform: translateY(-2px);
}

/* Gradient Backgrounds */
.gradient-primary {
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
}

.gradient-secondary {
  background: linear-gradient(135deg, var(--color-slate-600) 0%, var(--color-slate-800) 100%);
}

.gradient-accent {
  background: linear-gradient(135deg, var(--color-cyan-500) 0%, var(--color-blue-600) 100%);
}

.gradient-subtle {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

/* Text Gradients */
.text-gradient-primary {
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Enhanced Focus Rings */
.focus-enhanced {
  outline: none;
}

.focus-enhanced:focus-visible {
  box-shadow: var(--focus-ring);
}

/* Soft Shadows Utilities */
.shadow-soft {
  box-shadow: var(--shadow-soft);
}

.shadow-medium-custom {
  box-shadow: var(--shadow-medium);
}

.shadow-large-custom {
  box-shadow: var(--shadow-large);
}

.shadow-xl-custom {
  box-shadow: var(--shadow-xl);
}

/* Enhanced Border Radius */
.rounded-2xl-custom {
  border-radius: var(--rounded-2xl);
}

.rounded-3xl-custom {
  border-radius: var(--rounded-3xl);
}

/* Status Message Components */
.alert-success {
  background-color: var(--success-bg);
  color: var(--success);
  padding: 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--success);
}

.alert-warning {
  background-color: var(--warning-bg);
  color: var(--warning);
  padding: 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--warning);
}

.alert-error {
  background-color: var(--error-bg);
  color: var(--error);
  padding: 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--error);
}

.alert-info {
  background-color: var(--info-bg);
  color: var(--info);
  padding: 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--info);
}

/* Loading States */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  animation: shimmer 1.5s infinite;
}

html.dark .loading::after {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Enhanced Animations */
.fade-in {
  animation: fadeIn var(--transition-normal) ease-in-out;
}

.slide-up {
  animation: slideUp var(--transition-normal) ease-out;
}

.scale-in {
  animation: scaleIn var(--transition-normal) ease-out;
}

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

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

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

/* Enhanced Input Fields */
.input-enhanced {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-primary);
  transition: all 0.2s ease-in-out;
  background-color: var(--bg-card);
  color: var(--text-primary);
}

.input-enhanced:focus {
  border-color: var(--brand-primary);
  box-shadow: var(--focus-ring);
  outline: none;
}

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

/* Custom Scrollbar */
.scrollbar-custom {
  scrollbar-width: thin;
  scrollbar-color: var(--border-secondary) var(--bg-secondary);
}

.scrollbar-custom::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.scrollbar-custom::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 4px;
}

.scrollbar-custom::-webkit-scrollbar-thumb {
  background: var(--border-secondary);
  border-radius: 4px;
}

.scrollbar-custom::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Backdrop Blur Enhancement */
.backdrop-enhanced {
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
}

/* Print Styles */
@media print {
  .no-print {
    display: none !important;
  }
  
  .print-block {
    display: block !important;
  }
  
  * {
    box-shadow: none !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --shadow-soft: 0 2px 4px 0 rgb(0 0 0 / 0.5);
    --shadow-medium: 0 4px 8px 0 rgb(0 0 0 / 0.5);
    --border-primary: var(--color-slate-900);
  }
  
  html.dark {
    --border-primary: var(--color-slate-50);
  }
}

/* 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;
  }
  
  .loading::after {
    animation: none;
  }
}

/* Focus Visible Polyfill Support */
.js-focus-visible .focus-enhanced:focus:not(.focus-visible) {
  box-shadow: none;
}

/* Custom Selection */
::selection {
  background-color: var(--brand-primary);
  color: white;
}

html.dark ::selection {
  background-color: var(--brand-primary);
  color: white;
}

/* Enhanced Link Styling */
.link-enhanced {
  color: var(--interactive-primary);
  transition: color 0.2s ease-in-out;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.link-enhanced:hover {
  color: var(--interactive-primary-hover);
  text-decoration-thickness: 2px;
}

.link-enhanced:focus-visible {
  outline: 2px solid var(--brand-primary);
  outline-offset: 2px;
  border-radius: 0.25rem;
}