:root {
    /* Colors */
    --color-bg-dark: #0a0a0f;
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-tertiary: rgba(255, 255, 255, 0.5);
    
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-text: linear-gradient(135deg, #ffffff 0%, #a0a0a0 100%);
    
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-light: rgba(255, 255, 255, 0.2);
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-h1: 64px;
    --font-size-h3: 24px;
    --font-size-base: 16px;
    --font-weight-bold: 700;
    --font-weight-black: 900;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 20px;
    --spacing-xl: 40px;
    --spacing-2xl: 60px;
    --spacing-3xl: 100px;
    
    /* Border Radius */
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 30px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.6s ease;
    
    /* Shadows */
    --shadow-sm: 0 10px 30px rgba(102, 126, 234, 0.3);
    --shadow-md: 0 20px 40px rgba(102, 126, 234, 0.2);
    --shadow-lg: 0 20px 80px rgba(118, 75, 162, 0.6);
    --shadow-glow: 0 20px 60px rgba(102, 126, 234, 0.4);
}