@import url('tokens.css');

/**
 * CSS Custom Properties (Variables)
 * Central location for all design tokens including colors, spacing, typography, etc.
 * Makes theme customization and maintenance easier
 */

:root {
  /* ==================== COLORS ==================== */
  
  /* Primary Brand Colors */
  --color-primary-dark: color-mix(in srgb, var(--color-primary) 85%, var(--color-text-dark));
  --color-primary-light: color-mix(in srgb, var(--color-primary) 65%, var(--color-bg));
  
  /* Secondary Colors */
  --color-secondary: var(--color-accent);
  --color-secondary-dark: var(--color-accent-hover);
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;
  
  /* Semantic Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;

  /* Background Colors */
  --color-bg-primary: var(--color-bg);
  --color-bg-footer: #0b1026;
  --color-bg-secondary: var(--color-gray-50);
  --color-bg-tertiary: var(--color-card);
  --color-bg-blue: var(--color-primary);
  --color-bg-dark: #1a1a2e;
  
  /* Text Colors */
  --color-text-primary: var(--color-text-dark);
  --color-text-secondary: var(--color-text-soft);
  --color-text-tertiary: var(--color-gray-500);
  --color-text-inverse: var(--color-white);
  
  /* ==================== TYPOGRAPHY ==================== */
  
  /* Font Families */
  --font-family-primary: var(--font-main), -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 
                         'Helvetica Neue', Arial, sans-serif;
  --font-family-heading: var(--font-family-primary);
  --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', 
                      Consolas, 'Courier New', monospace;
  
  /* Font Sizes */
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  --font-size-6xl: 3.75rem;     /* 60px */
  
  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --line-height-loose: 2;
  
  /* ==================== SPACING ==================== */
  
  --spacing-3xl: 4rem;      /* 64px */
  --spacing-4xl: 6rem;      /* 96px */
  --spacing-5xl: 8rem;      /* 128px */
  
  /* ==================== LAYOUT ==================== */
  
  /* Container Widths */
  --container-width-sm: 640px;
  --container-width-md: 768px;
  --container-width-lg: 1024px;
  --container-width-xl: 1280px;
  --container-width-2xl: 1536px;
  
  /* Border Radius */
  --radius-sm: 0.5rem;      /* 8px */
  --radius-xl: 2rem;        /* 32px */
  --radius-2xl: 2.5rem;     /* 40px */
  --radius-3xl: 3rem;       /* 48px */
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  
  /* ==================== TRANSITIONS ==================== */
  
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* ==================== Z-INDEX ==================== */
  
  --z-index-dropdown: 1000;
  --z-index-sticky: 1020;
  --z-index-fixed: 1030;
  --z-index-modal-backdrop: 1040;
  --z-index-modal: 1050;
  --z-index-popover: 1060;
  --z-index-tooltip: 1070;
  
  /* ==================== BREAKPOINTS ==================== */
  /* These are referenced in media queries */
  
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}