:root {
  /* Color System */
  --color-primary-50: #e6f0fa;
  --color-primary-100: #cce0f5;
  --color-primary-200: #99c2eb;
  --color-primary-300: #66a3e0;
  --color-primary-400: #3385d6;
  --color-primary-500: #0056b3; /* Primary */
  --color-primary-600: #004a9f;
  --color-primary-700: #003d85;
  --color-primary-800: #00316c;
  --color-primary-900: #001a38;
  
  --color-secondary-50: #e6f8f7;
  --color-secondary-100: #ccf1ef;
  --color-secondary-200: #99e4df;
  --color-secondary-300: #66d6cf;
  --color-secondary-400: #33c9bf;
  --color-secondary-500: #00a896; /* Secondary */
  --color-primary-600: #009182;
  --color-secondary-700: #00786c;
  --color-secondary-800: #005f57;
  --color-secondary-900: #003b34;
  
  --color-accent-50: #fff2e6;
  --color-accent-100: #ffe5cc;
  --color-accent-200: #ffcb99;
  --color-accent-300: #ffb166;
  --color-accent-400: #ff9633;
  --color-accent-500: #ff7b00; /* Accent */
  --color-accent-600: #e66e00;
  --color-accent-700: #cc6200;
  --color-accent-800: #994a00;
  --color-accent-900: #663100;
  
  --color-success-50: #e6f9ed;
  --color-success-100: #ccf3db;
  --color-success-200: #99e7b8;
  --color-success-300: #66db94;
  --color-success-400: #33cf71;
  --color-success-500: #00c34d; /* Success */
  --color-success-600: #00af44;
  --color-success-700: #009a3c;
  --color-success-800: #007830;
  --color-success-900: #004d1f;
  
  --color-warning-50: #fefbe6;
  --color-warning-100: #fdf8cc;
  --color-warning-200: #fbf199;
  --color-warning-300: #f9ea66;
  --color-warning-400: #f7e333;
  --color-warning-500: #f5dc00; /* Warning */
  --color-warning-600: #dcc500;
  --color-warning-700: #c2af00;
  --color-warning-800: #938400;
  --color-warning-900: #615800;
  
  --color-error-50: #fdebeb;
  --color-error-100: #fbd7d7;
  --color-error-200: #f7afaf;
  --color-error-300: #f38787;
  --color-error-400: #ef5f5f;
  --color-error-500: #eb3737; /* Error */
  --color-error-600: #d33131;
  --color-error-700: #bb2b2b;
  --color-error-800: #8f2121;
  --color-error-900: #601616;
  
  --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;
  
  /* Spacing */
  --spacing-0: 0;
  --spacing-1: 0.4rem;
  --spacing-2: 0.8rem;
  --spacing-3: 1.2rem;
  --spacing-4: 1.6rem;
  --spacing-5: 2.4rem;
  --spacing-6: 3.2rem;
  --spacing-7: 4.0rem;
  --spacing-8: 4.8rem;
  --spacing-9: 5.6rem;
  --spacing-10: 6.4rem;
  
  /* Typography */
  --font-sans: 'Vazirmatn', 'Poppins', sans-serif;
  --font-size-xs: 1.2rem;
  --font-size-sm: 1.4rem;
  --font-size-base: 1.6rem;
  --font-size-lg: 1.8rem;
  --font-size-xl: 2.0rem;
  --font-size-2xl: 2.4rem;
  --font-size-3xl: 3.0rem;
  --font-size-4xl: 3.6rem;
  --font-size-5xl: 4.8rem;
  --font-size-6xl: 6.0rem;
  
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;
  
  /* Borders */
  --border-radius-sm: 0.4rem;
  --border-radius-md: 0.8rem;
  --border-radius-lg: 1.6rem;
  --border-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);
  
  /* Transitions */
  --transition-fast: 150ms;
  --transition-normal: 300ms;
  --transition-slow: 500ms;
  
  /* 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;

  /* Base Colors - Light Theme */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-tertiary: #f3f4f6;
  --color-text-primary: #111827;
  --color-text-secondary: #4b5563;
  --color-text-tertiary: #6b7280;
  --color-border: #e5e7eb;
}

/* Dark Theme Colors */
[data-theme="dark"] {
  --color-bg-primary: #111827;
  --color-bg-secondary: #1f2937;
  --color-bg-tertiary: #374151;
  --color-text-primary: #f9fafb;
  --color-text-secondary: #e5e7eb;
  --color-text-tertiary: #9ca3af;
  --color-border: #374151;
}