/**
 * Design System - CSS Custom Properties
 * Defines all design tokens for consistency across the site
 */

:root {
  /* ==================== Colors ==================== */
  
  /* Primary Colors - Navy Blue Theme */
  --color-primary-900: #0A1628;
  --color-primary-800: #1A2B4A;
  --color-primary-700: #2A3F5F;
  --color-primary-600: #3B5273;
  --color-primary-500: #4B6587;
  --color-primary-400: #6B7FA0;
  
  /* Accent Colors - Gold */
  --color-accent-900: #8B7328;
  --color-accent-800: #A68838;
  --color-accent-700: #C09D3A;
  --color-accent-600: #D4AF37;
  --color-accent-500: #DCC157;
  --color-accent-400: #E5D372;
  
  /* Neutral Colors */
  --color-neutral-white: #FFFFFF;
  --color-neutral-50: #F9FAFB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-200: #E5E7EB;
  --color-neutral-300: #D1D5DB;
  --color-neutral-400: #9CA3AF;
  --color-neutral-500: #6B7280;
  --color-neutral-600: #4B5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1F2937;
  --color-neutral-900: #111827;
  
  /* Semantic Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  
  /* ==================== Typography ==================== */
  
  /* Font Families - System Font Stack */
  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
  
  /* Font Sizes */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */
  
  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  /* Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* ==================== Spacing ==================== */
  
  /* Base: 8px unit */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */
  
  /* ==================== Shadows ==================== */
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 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);
  
  /* ==================== Borders ==================== */
  
  --border-width-thin: 1px;
  --border-width-base: 2px;
  --border-width-thick: 4px;
  
  --border-radius-sm: 0.25rem;   /* 4px */
  --border-radius-base: 0.5rem;  /* 8px */
  --border-radius-md: 0.75rem;   /* 12px */
  --border-radius-lg: 1rem;      /* 16px */
  --border-radius-xl: 1.5rem;    /* 24px */
  --border-radius-full: 9999px;
  
  /* ==================== Breakpoints ==================== */
  
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
  
  /* ==================== Z-Index ==================== */
  
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  
  /* ==================== Transitions ==================== */
  
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  
  /* ==================== Layout ==================== */
  
  --container-max-width: 1280px;
  --container-padding: var(--space-4);
  
  --section-padding-y: var(--space-16);
  --section-padding-y-mobile: var(--space-12);
}

/* Dark color adjustments for better contrast */
@media (prefers-color-scheme: dark) {
  :root {
    --color-neutral-50: #1F2937;
    --color-neutral-100: #374151;
  }
}