/* ============================================================================
   Global Design Tokens
   Centralized color, typography, and motion variables shared across UI surfaces
   ============================================================================ */

:root {
  /* Color Palette */
  --primary-dark: #124E66;
  --primary-green: #2E8B57;
  --primary-blue: #1C6E8C;
  --primary-navy: #0D1B2A;
  --primary-light: #E6EBEE;
  --accent-green: #A5B452;
  
  /* Extended Colors */
  --white: #ffffff;
  --black: #000000;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-green) 100%);
  --gradient-accent: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-dark) 100%);
  --gradient-light: linear-gradient(135deg, var(--primary-light) 0%, var(--white) 100%);
  
  /* Typography - Vietnamese Optimized */
  --font-primary: 'Be Vietnam Pro', 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
  --font-heading: 'Nunito', 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(13, 27, 42, 0.1);
  --shadow-md: 0 4px 12px rgba(13, 27, 42, 0.15);
  --shadow-lg: 0 8px 32px rgba(13, 27, 42, 0.2);
  --shadow-xl: 0 16px 64px rgba(13, 27, 42, 0.25);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Layout & Spacing */
  --content-max: 1200px;
  --content-wide: 1400px;
  --section-padding: clamp(64px, 8vw, 120px);
  --gutter: clamp(20px, 4vw, 48px);
  --gutter-tight: clamp(16px, 3vw, 32px);
  --nav-height: 60px;

  /* Breakpoints */
  --bp-desktop: 1200px;
  --bp-laptop: 1024px;
  --bp-tablet: 900px;
  --bp-medium: 768px;
  --bp-mobile: 640px;
  --bp-small: 480px;
}