:root {
  /* Color Palette - Professional Deep Navy & Vibrant Accents */
  --color-primary: #6366F1; /* Indigo */
  --color-primary-light: #818CF8;
  --color-primary-dark: #4F46E5;
  
  --color-secondary: #8B5CF6; /* Purple */
  --color-secondary-light: #A78BFA;
  --color-secondary-dark: #7C3AED;
  
  --color-accent: #06B6D4; /* Cyan */
  --color-accent-light: #22D3EE;
  --color-accent-dark: #0891B2;
  
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  
  /* Backgrounds */
  --color-bg-primary: #0A0E27; /* Deep Navy */
  --color-bg-secondary: #0F172A; /* Slate 900 */
  --color-bg-tertiary: #1E293B; /* Slate 800 */
  
  /* Glass Effects */
  --color-glass-bg: rgba(30, 41, 59, 0.4);
  --color-glass-border: rgba(148, 163, 184, 0.1);
  --color-glass-hover: rgba(30, 41, 59, 0.6);
  
  /* Text Colors */
  --color-text-primary: #F8FAFC; /* Slate 50 */
  --color-text-secondary: #CBD5E1; /* Slate 300 */
  --color-text-muted: #94A3B8; /* Slate 400 */
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
  --gradient-secondary: linear-gradient(135deg, #8B5CF6 0%, #06B6D4 100%);
  --gradient-accent: linear-gradient(135deg, #06B6D4 0%, #3B82F6 100%);
  --gradient-hero: linear-gradient(135deg, #0A0E27 0%, #1E293B 50%, #312E81 100%);
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-size-7xl: 4.5rem;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --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);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);
  --shadow-glow-purple: 0 0 30px rgba(139, 92, 246, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}