:root {
  /* Colors - Primary */
  --color-primary: #4F46E5;
  --color-primary-light: #6366F1;
  --color-primary-dark: #4338CA;
  
  /* Colors - Secondary */
  --color-secondary: #7C3AED;
  --color-secondary-light: #8B5CF6;
  
  /* Colors - Accent */
  --color-accent: #F59E0B;
  --color-accent-light: #FBBF24;
  
  /* Colors - Status */
  --color-success: #10B981;
  --color-success-light: #34D399;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  
  /* Colors - Surfaces (Dark Theme) */
  --color-bg: #0F172A;
  --color-bg-alt: #0B1120;
  --color-surface: #1E293B;
  --color-surface-light: #334155;
  --color-surface-hover: #475569;
  --color-border: rgba(148, 163, 184, 0.15);
  --color-border-light: rgba(148, 163, 184, 0.08);
  
  /* Colors - Text */
  --color-text: #F8FAFC;
  --color-text-secondary: #CBD5E1;
  --color-text-muted: #94A3B8;
  --color-text-dim: #64748B;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #4F46E5, #7C3AED);
  --gradient-accent: linear-gradient(135deg, #F59E0B, #EF4444);
  --gradient-hero: linear-gradient(135deg, #0F172A 0%, #1E1B4B 50%, #0F172A 100%);
  --gradient-card: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(124, 58, 237, 0.05));
  --gradient-glow: radial-gradient(ellipse at center, rgba(79, 70, 229, 0.15), transparent 70%);
  
  /* Glass Effect */
  --glass-bg: rgba(30, 41, 59, 0.6);
  --glass-border: rgba(148, 163, 184, 0.12);
  --glass-blur: blur(16px);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --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-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;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(79, 70, 229, 0.3);
  --shadow-glow-accent: 0 0 30px rgba(245, 158, 11, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 72px;
  
  /* Z-index */
  --z-nav: 100;
  --z-modal: 200;
  --z-floating: 150;
}