/**
 * Design Tokens - Mamdouh Ahmed Attia Portfolio
 * 
 * This file contains all design tokens used throughout the site.
 * Tokens are organized by category and support both light and dark themes.
 */

:root {
  /* ==================== COLORS ==================== */
  
  /* Brand Colors (Celestial Architect) */
  --color-primary: #7C3AED;
  --color-primary-light: #9061F9;
  --color-primary-dark: #6D28D9;
  --color-primary-rgb: 124, 58, 237;
  
  --color-secondary: #22D3EE;
  --color-secondary-light: #67E8F9;
  --color-secondary-dark: #0891B2;
  --color-secondary-rgb: 34, 211, 238;
  
  --color-accent: #000000;
  
  /* Semantic Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #3B82F6;
  
  /* Star Rating */
  --color-star: #FBBF24;
  --color-star-empty: #374151;
  
  /* ==================== DARK THEME (Default) ==================== */
  --bg-primary: #0E0E0E;
  --bg-secondary: #161616;
  --bg-tertiary: #1E1E1E;
  --bg-elevated: #252525;
  
  --text-primary: #FFFFFF;
  --text-secondary: #A0A0A0;
  --text-tertiary: #6B7280;
  --text-inverse: #0D0D0D;
  
  --border-color: #333333;
  --border-color-light: #444444;
  
  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  
  /* ==================== TYPOGRAPHY ==================== */
  
  /* Font Families */
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Fira Code', 'Consolas', monospace;
  
  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 4.5rem);
  
  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;
  
  /* Letter Spacing */
  --tracking-tighter: -0.05em;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  
  /* ==================== SPACING ==================== */
  --space-0: 0;
  --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 */
  
  /* Container */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
  
  /* ==================== BORDERS ==================== */
  --radius-none: 0;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  --border-width: 1px;
  --border-width-2: 2px;
  
  /* ==================== 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 -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 20px rgba(var(--color-primary-rgb), 0.3);
  --shadow-glow-lg: 0 0 40px rgba(var(--color-primary-rgb), 0.4);
  
  /* ==================== Z-INDEX ==================== */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  --z-toast: 800;
  
  /* ==================== TRANSITIONS ==================== */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 350ms;
  --duration-slower: 500ms;
  
  --ease-linear: linear;
  --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);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* ==================== BREAKPOINTS (for reference) ==================== */
  /* Mobile: < 600px */
  /* Tablet: 600px - 1024px */
  /* Desktop: > 1024px */
}

/* ==================== LIGHT THEME ==================== */
[data-theme="light"] {
  --bg-primary: #F7F7F8;
  --bg-secondary: #EEEEEF;
  --bg-tertiary: #E5E5E6;
  --bg-elevated: #FFFFFF;
  
  --text-primary: #0A2540;
  --text-secondary: #4A5568;
  --text-tertiary: #718096;
  --text-inverse: #FFFFFF;
  
  --border-color: #E2E8F0;
  --border-color-light: #CBD5E0;
  
  --glass-bg: rgba(0, 0, 0, 0.02);
  --glass-border: rgba(0, 0, 0, 0.08);
  
  /* Adjusted shadows for light theme */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

/* ==================== UTILITY TOKEN EXPORTS ==================== */
/*
  Export as JSON (for Flutter/other platforms):
  
  {
    "colors": {
      "primary": "#6A0DAD",
      "primaryLight": "#8B2FC9",
      "primaryDark": "#4A0080",
      "secondary": "#0A2540",
      "accent": "#000000"
    },
    "typography": {
      "fontHeading": "Inter",
      "fontBody": "Roboto"
    },
    "spacing": {
      "xs": "4px",
      "sm": "8px",
      "md": "16px",
      "lg": "24px",
      "xl": "32px"
    },
    "borderRadius": {
      "sm": "4px",
      "md": "8px",
      "lg": "12px",
      "xl": "16px",
      "full": "9999px"
    }
  }
  
  Flutter ThemeData mapping:
  
  final portfolioTheme = ThemeData(
    primaryColor: Color(0xFF6A0DAD),
    colorScheme: ColorScheme.dark(
      primary: Color(0xFF6A0DAD),
      secondary: Color(0xFF0A2540),
      surface: Color(0xFF1A1A1A),
      background: Color(0xFF0D0D0D),
    ),
    fontFamily: 'Inter',
    textTheme: TextTheme(
      displayLarge: TextStyle(fontSize: 48, fontWeight: FontWeight.bold),
      headlineLarge: TextStyle(fontSize: 32, fontWeight: FontWeight.w600),
      bodyLarge: TextStyle(fontSize: 16, fontFamily: 'Roboto'),
    ),
  );
*/