:root {
    /* Modern Color Palette */
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --primary-light: #e0e7ff;
    --secondary: #7209b7;
    --success: #2ecc71;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    
    /* Neutral Colors */
    --dark: #2d3436;
    --gray-1: #636e72;
    --gray-2: #b2bec3;
    --gray-3: #dfe6e9;
    --light: #f8f9fa;
    --white: #ffffff;
    
    /* Backgrounds */
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.1);
    
    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    /* Fonts */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', var(--font-main);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --dark: #f8f9fa;
    --light: #2d3436;
    --gray-3: #34495e;
    --white: #1e272e;
}
:root {
    /* Modern Color Palette */
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --primary-light: #e0e7ff;
    --secondary: #7209b7;
    --secondary-light: #9d4edd;
    --success: #2ecc71;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    
    /* Neutral Colors */
    --dark: #2d3436;
    --gray-1: #636e72;
    --gray-2: #b2bec3;
    --gray-3: #dfe6e9;
    --light: #f8f9fa;
    --white: #ffffff;
    
    /* Backgrounds */
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
    
    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Fonts */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', var(--font-main);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --dark: #f8f9fa;
    --light: #1e272e;
    --gray-1: #a4b0be;
    --gray-3: #34495e;
    --white: #2d3436;
    --shadow-md: 0 4px 20px rgba(0,0,0,0.2);
}
:root {
    /* Primary Colors */
    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --primary-700: #4338ca;
    --primary-800: #3730a3;
    --primary-900: #312e81;
    --primary-950: #1e1b4b;
    
    /* Secondary Colors */
    --secondary-50: #f8fafc;
    --secondary-100: #f1f5f9;
    --secondary-200: #e2e8f0;
    --secondary-300: #cbd5e1;
    --secondary-400: #94a3b8;
    --secondary-500: #64748b;
    --secondary-600: #475569;
    --secondary-700: #334155;
    --secondary-800: #1e293b;
    --secondary-900: #0f172a;
    --secondary-950: #020617;
    
    /* Accent Colors */
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;
    
    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* Neutral Colors */
    --white: #ffffff;
    --black: #000000;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 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;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}