:root {
  /* iOS height fix variable */
  --vh: 1vh;
  
  /* Enhanced Color Palette */
  --primary-color: #1a365d;
  --primary-light: #2d5a87;
  --primary-dark: #0f2a44;
  --secondary-color: #3182ce;
  --secondary-light: #4299e1;
  --secondary-dark: #2c5aa0;
  --accent-color: #38b2ac;
  --accent-light: #4fd1c7;
  --accent-dark: #2c7a7b;
  
  /* Sophisticated Background Colors */
  --background-color: #f7fafc;
  --background-secondary: #edf2f7;
  --background-tertiary: #e2e8f0;
  --surface-color: #ffffff;
  --surface-elevated: #fefefe;
  
  /* Enhanced Text Colors */
  --text-color: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --text-light: #a0aec0;
  --text-inverse: #ffffff;
  
  /* Status Colors */
  --success-color: #38a169;
  --success-light: #48bb78;
  --success-dark: #2f855a;
  --warning-color: #d69e2e;
  --warning-light: #ed8936;
  --warning-dark: #b7791f;
  --error-color: #e53e3e;
  --error-light: #f56565;
  --error-dark: #c53030;
  --info-color: #3182ce;
  --info-light: #4299e1;
  --info-dark: #2c5aa0;
  
  /* Enhanced Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-light) 100%);
  --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
  --gradient-success: linear-gradient(135deg, var(--success-color) 0%, var(--success-light) 100%);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-sunset: linear-gradient(135deg, #ff9a9e 0%, #fecfef 50%, #fecfef 100%);
  --gradient-ocean: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-forest: linear-gradient(135deg, #134e5e 0%, #71b280 100%);
  --gradient-royal: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-shimmer: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0) 100%);
  
  /* Glass Morphism */
  --glass-bg: rgba(255, 255, 255, 0.25);
  --glass-bg-strong: rgba(255, 255, 255, 0.4);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  --backdrop-blur: blur(20px);
  --backdrop-blur-strong: blur(40px);
  
  /* Enhanced Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  --shadow-colored: 0 10px 15px -3px rgba(59, 130, 246, 0.1), 0 4px 6px -2px rgba(59, 130, 246, 0.05);
  
  /* Enhanced Border Radius */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-3xl: 24px;
  --radius-full: 9999px;
  --border-radius: var(--radius-lg);
  
  /* Enhanced Spacing */
  --spacing-unit: 8px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  
  /* Layout */
  --container-width: 1200px;
  --container-width-sm: 640px;
  --container-width-md: 768px;
  --container-width-lg: 1024px;
  --container-width-xl: 1280px;
  --header-height: 80px;
  --header-height-mobile: 70px;
  --sidebar-width: 280px;
  
  /* Enhanced Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
  --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --transition-spring: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --animation-timing: cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Enhanced Typography */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-serif: 'Playfair Display', Georgia, Cambria, 'Times New Roman', Times, serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  
  /* Font Weights */
  --font-weight-thin: 100;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-weight-black: 900;
  
  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* Letter Spacing */
  --letter-spacing-tighter: -0.05em;
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;
  --letter-spacing-widest: 0.1em;
  
  /* Responsive Breakpoints */
  --mobile-width: 480px;
  --tablet-width: 768px;
  --laptop-width: 1024px;
  --desktop-width: 1200px;
  --wide-width: 1400px;
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;
}

[data-theme="dark"] {
  /* Dark Theme Colors */
  --primary-color: #4299e1;
  --primary-light: #63b3ed;
  --primary-dark: #3182ce;
  --secondary-color: #38b2ac;
  --secondary-light: #4fd1c7;
  --secondary-dark: #2c7a7b;
  --accent-color: #ed8936;
  --accent-light: #f6ad55;
  --accent-dark: #dd6b20;
  
  /* Dark Backgrounds */
  --background-color: #0f1419;
  --background-secondary: #1a202c;
  --background-tertiary: #2d3748;
  --surface-color: #1a202c;
  --surface-elevated: #2d3748;
  
  /* Dark Text Colors */
  --text-color: #f7fafc;
  --text-secondary: #e2e8f0;
  --text-muted: #a0aec0;
  --text-light: #718096;
  --text-inverse: #1a202c;
  
  /* Dark Glass Effects */
  --glass-bg: rgba(26, 32, 44, 0.4);
  --glass-bg-strong: rgba(26, 32, 44, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.6);
  
  /* Dark Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.2);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
}

/* Base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family-sans);
  line-height: var(--line-height-normal);
  color: var(--text-color);
  background: var(--background-color);
  position: relative;
  min-height: 100vh;
  overflow-x: hidden; /* Only prevent horizontal overflow */
  overflow-y: visible; /* Allow vertical scrolling */
  font-size: 16px;
  font-weight: var(--font-weight-normal);
  letter-spacing: var(--letter-spacing-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
}

/* Enhanced Typography System */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: 0.5em;
  color: var(--text-color);
}

h1 { 
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tighter);
  line-height: 1.1;
}

h2 { 
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-tight);
}

h3 { 
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: var(--font-weight-semibold);
}

h4 { 
  font-size: clamp(1.25rem, 2.5vw, 1.875rem);
  font-weight: var(--font-weight-semibold);
}

h5 { 
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: var(--font-weight-medium);
}

h6 { 
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: var(--font-weight-medium);
}

p {
  margin-bottom: 1em;
  line-height: var(--line-height-relaxed);
  color: var(--text-secondary);
}

.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }

.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }
.font-extrabold { font-weight: var(--font-weight-extrabold); }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-error { color: var(--error-color); }

/* Container */
.container {
  width: 100%;
  padding-right: 1rem;
  padding-left: 1rem;
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* Responsive Grid */
.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

/* Responsive Images */
img {
  max-width: 100%;
  height: auto;
}

/* Enhanced Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  font-size: 0.875rem;
  line-height: 1;
  letter-spacing: var(--letter-spacing-wide);
  text-decoration: none;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  min-height: 48px; /* Increased from 44px for better touch targets */
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation; /* Improve touch behavior */
}

.btn:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button Sizes */
.btn-xs {
  padding: var(--space-1) var(--space-3);
  font-size: 0.75rem;
  min-height: 32px;
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: 0.8125rem;
  min-height: 36px;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1rem;
  min-height: 52px;
}

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: 1.125rem;
  min-height: 60px;
}

/* Primary Button */
.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-inverse);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

/* Secondary Button */
.btn-secondary {
  background: var(--surface-color);
  color: var(--primary-color);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--primary-color);
  color: var(--text-inverse);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
  background: var(--primary-color);
  color: var(--text-inverse);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--text-color);
  border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
  background: var(--background-secondary);
  transform: translateY(-1px);
}

/* Success Button */
.btn-success {
  background: var(--gradient-success);
  color: var(--text-inverse);
  box-shadow: var(--shadow-md);
}

.btn-success:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--success-dark) 0%, var(--success-color) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Warning Button */
.btn-warning {
  background: linear-gradient(135deg, var(--warning-color) 0%, var(--warning-light) 100%);
  color: var(--text-inverse);
  box-shadow: var(--shadow-md);
}

.btn-warning:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--warning-dark) 0%, var(--warning-color) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Danger Button */
.btn-danger {
  background: linear-gradient(135deg, var(--error-color) 0%, var(--error-light) 100%);
  color: var(--text-inverse);
  box-shadow: var(--shadow-md);
}

.btn-danger:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--error-dark) 0%, var(--error-color) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Button with shimmer effect */
.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-shimmer);
  transition: left var(--transition-slow);
  z-index: 1;
}

.btn:hover::before {
  left: 100%;
}

.btn > * {
  position: relative;
  z-index: 2;
}

/* Layout Components */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-unit);
}

/* Glass Effect */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* Enhanced Card System */
.card {
  background: var(--surface-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--background-tertiary);
  transition: all var(--transition-normal);
  overflow: hidden;
  position: relative;
}

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

.card-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--background-tertiary);
  background: var(--background-color);
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-6);
  border-top: 1px solid var(--background-tertiary);
  background: var(--background-color);
}

/* Glass Card Variant */
.card-glass {
  background: var(--glass-bg-strong);
  backdrop-filter: var(--backdrop-blur);
  -webkit-backdrop-filter: var(--backdrop-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* Elevated Card Variant */
.card-elevated {
  background: var(--surface-elevated);
  box-shadow: var(--shadow-2xl);
  border: none;
}

/* Interactive Card */
.card-interactive {
  cursor: pointer;
  user-select: none;
}

.card-interactive:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-2xl);
}

.card-interactive:active {
  transform: translateY(-2px) scale(1.01);
}

/* Enhanced Form Elements */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-weight: var(--font-weight-medium);
  color: var(--text-color);
  margin-bottom: var(--space-2);
  font-size: 0.875rem;
  letter-spacing: var(--letter-spacing-wide);
}

.form-label.required::after {
  content: ' *';
  color: var(--error-color);
}

input, 
select, 
textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--background-tertiary);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-family: inherit;
  background: var(--surface-color);
  color: var(--text-color);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-xs);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1), var(--shadow-sm);
  background: var(--surface-elevated);
}

input:hover:not(:focus),
select:hover:not(:focus),
textarea:hover:not(:focus) {
  border-color: var(--primary-light);
}

/* Input States */
input.error,
select.error,
textarea.error {
  border-color: var(--error-color);
  box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.1);
}

input.success,
select.success,
textarea.success {
  border-color: var(--success-color);
  box-shadow: 0 0 0 3px rgba(56, 161, 105, 0.1);
}

/* Input Sizes */
.input-sm {
  padding: var(--space-2) var(--space-3);
  font-size: 0.875rem;
}

.input-lg {
  padding: var(--space-4) var(--space-5);
  font-size: 1.125rem;
}

/* Form Helper Text */
.form-help {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: var(--space-1);
}

.form-error {
  font-size: 0.8125rem;
  color: var(--error-color);
  margin-top: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.form-success {
  font-size: 0.8125rem;
  color: var(--success-color);
  margin-top: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* Mobile-Specific Global Improvements */
@media (max-width: 768px) {
  :root {
    --header-height: var(--header-height-mobile);
  }
  
  body {
    padding-top: var(--header-height-mobile);
  }
  
  .main-content {
    padding-top: var(--space-4);
    min-height: calc(100vh - var(--header-height-mobile));
  }
  
  .container {
    padding: 0 var(--space-4);
  }
  
  /* Improved touch targets */
  .btn {
    min-height: 48px;
    min-width: 48px;
    padding: var(--space-3) var(--space-4);
  }
  
  /* Better form elements */
  input, 
  select, 
  textarea {
    padding: var(--space-3);
    font-size: 16px; /* Prevent iOS zoom */
    min-height: 48px;
  }
  
  /* Card improvements */
  .card {
    margin-bottom: var(--space-4);
    border-radius: var(--radius-lg);
  }
  
  .card-header,
  .card-body,
  .card-footer {
    padding: var(--space-4);
  }
  
  /* Typography improvements */
  h1 { font-size: clamp(1.75rem, 6vw, 2.25rem); }
  h2 { font-size: clamp(1.5rem, 5vw, 1.875rem); }
  h3 { font-size: clamp(1.25rem, 4vw, 1.5rem); }
  h4 { font-size: clamp(1.125rem, 3vw, 1.25rem); }
  
  p {
    font-size: clamp(0.9375rem, 3vw, 1rem);
    line-height: 1.6;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-3);
  }
  
  .main-content {
    padding-top: var(--space-3);
  }
  
  input, 
  select, 
  textarea {
    padding: var(--space-3);
    font-size: 16px;
  }
  
  .card-header,
  .card-body,
  .card-footer {
    padding: var(--space-3);
  }
  
  /* Smaller typography for very small screens */
  h1 { font-size: clamp(1.5rem, 7vw, 1.875rem); }
  h2 { font-size: clamp(1.25rem, 6vw, 1.5rem); }
  
  /* Full width buttons on mobile */
  .btn-mobile-full {
    width: 100%;
    margin-bottom: var(--space-2);
  }
}

/* Enhanced Animations */
@keyframes fadeIn {
  from { 
    opacity: 0; 
    transform: translateY(10px);
  }
  to { 
    opacity: 1; 
    transform: translateY(0);
  }
}

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

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

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

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

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

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

@keyframes pulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(26, 54, 93, 0.7);
  }
  70% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(26, 54, 93, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(26, 54, 93, 0);
  }
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

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

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translate3d(0, 0, 0);
  }
  40%, 43% {
    transform: translate3d(0, -30px, 0);
  }
  70% {
    transform: translate3d(0, -15px, 0);
  }
  90% {
    transform: translate3d(0, -4px, 0);
  }
}

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

@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}

/* Animation Classes */
.animate-fadeIn { animation: fadeIn 0.6s ease-out; }
.animate-fadeInUp { animation: fadeInUp 0.6s ease-out; }
.animate-fadeInDown { animation: fadeInDown 0.6s ease-out; }
.animate-fadeInLeft { animation: fadeInLeft 0.6s ease-out; }
.animate-fadeInRight { animation: fadeInRight 0.6s ease-out; }
.animate-slideUp { animation: slideUp 0.6s ease-out; }
.animate-scaleIn { animation: scaleIn 0.4s ease-out; }
.animate-pulse { animation: pulse 2s infinite; }
.animate-float { animation: float 3s ease-in-out infinite; }
.animate-bounce { animation: bounce 1s infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-ping { animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite; }

/* Animation Delays */
.delay-75 { animation-delay: 75ms; }
.delay-100 { animation-delay: 100ms; }
.delay-150 { animation-delay: 150ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-500 { animation-delay: 500ms; }
.delay-700 { animation-delay: 700ms; }
.delay-1000 { animation-delay: 1000ms; }

/* Utility Classes */
.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;
}

.not-sr-only {
  position: static;
  width: auto;
  height: auto;
  padding: 0;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* Display Utilities */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.inline-grid { display: inline-grid; }

/* Flexbox Utilities */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }
.justify-evenly { justify-content: space-evenly; }

/* Grid Utilities */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid-cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

/* Gap Utilities */
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }

/* Spacing Utilities */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }
.m-5 { margin: var(--space-5); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }
.m-auto { margin: auto; }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }

/* Border Radius */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-3xl { border-radius: var(--radius-3xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadow Utilities */
.shadow-none { box-shadow: none; }
.shadow-xs { box-shadow: var(--shadow-xs); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-2xl { box-shadow: var(--shadow-2xl); }

/* Enhanced Media Queries */
@media (max-width: 480px) {
  :root {
    --spacing-unit: 4px;
    --space-1: 2px;
    --space-2: 4px;
    --space-3: 8px;
    --space-4: 12px;
    --space-5: 16px;
    --space-6: 20px;
    --space-8: 24px;
    --space-10: 32px;
    --space-12: 40px;
  }
  
  body {
    font-size: 14px;
  }
  
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

@media (max-width: 768px) {
  .hidden-mobile { display: none; }
  .block-mobile { display: block; }
  .flex-mobile { display: flex; }
  
  .grid-cols-mobile-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .grid-cols-mobile-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  
  .text-center-mobile { text-align: center; }
  .text-left-mobile { text-align: left; }
}

/* Mobile Layout Utilities - Added for consistency */
@media (max-width: 768px) {
  /* Universal mobile spacing fixes */
  .mobile-p-2 { padding: var(--space-2) !important; }
  .mobile-p-3 { padding: var(--space-3) !important; }
  .mobile-p-4 { padding: var(--space-4) !important; }
  .mobile-m-2 { margin: var(--space-2) !important; }
  .mobile-m-3 { margin: var(--space-3) !important; }
  .mobile-m-4 { margin: var(--space-4) !important; }
  
  /* Mobile display utilities */
  .mobile-block { display: block !important; }
  .mobile-flex { display: flex !important; }
  .mobile-grid { display: grid !important; }
  .mobile-hidden { display: none !important; }
  
  /* Mobile flex utilities */
  .mobile-flex-col { flex-direction: column !important; }
  .mobile-flex-row { flex-direction: row !important; }
  .mobile-justify-center { justify-content: center !important; }
  .mobile-justify-between { justify-content: space-between !important; }
  .mobile-items-center { align-items: center !important; }
  .mobile-items-start { align-items: flex-start !important; }
  
  /* Mobile text utilities */
  .mobile-text-center { text-align: center !important; }
  .mobile-text-left { text-align: left !important; }
  .mobile-text-sm { font-size: 0.875rem !important; }
  .mobile-text-base { font-size: 1rem !important; }
  
  /* Mobile width utilities */
  .mobile-w-full { width: 100% !important; }
  .mobile-w-auto { width: auto !important; }
  
  /* Mobile gap utilities */
  .mobile-gap-2 { gap: var(--space-2) !important; }
  .mobile-gap-3 { gap: var(--space-3) !important; }
  .mobile-gap-4 { gap: var(--space-4) !important; }
}

/* iOS Safari specific fixes */
@supports (-webkit-appearance: none) {
  @media (max-width: 768px) {
    /* Fix iOS Safari viewport height issues */
    .mobile-vh-fix {
      height: -webkit-fill-available !important;
      min-height: -webkit-fill-available !important;
    }
    
    /* Fix iOS Safari input zoom */
    input, select, textarea {
      font-size: 16px !important;
    }
    
    /* Fix iOS Safari button appearance */
    button, .btn {
      -webkit-appearance: none !important;
      appearance: none !important;
    }
  }
}