:root {
    /* Primary Colors */
    --primary: #1a1a2e;
    --secondary: #4a4a6a;
    --accent: #3b82f6;
    --accent-light: #60a5fa;
    --accent-dark: #2563eb;
    
    /* Semantic Colors */
    --success: #22c55e;
    --success-light: #86efac;
    --warning: #f59e0b;
    --warning-light: #fcd34d;
    --danger: #ef4444;
    --danger-light: #fca5a5;
    --info: #06b6d4;
    
    /* Category Colors */
    --food: #3b82f6;
    --commute: #8b5cf6;
    --health: #22c55e;
    --rent: #f59e0b;
    --dress: #ec4899;
    --mortgage: #06b6d4;
    --recharge: #f97316;
    --shopping: #ec4899;
    --entertainment: #f59e0b;
    --other: #6b7280;
    
    /* Background Colors */
    --bg: #f8f9fa;
    --bg-secondary: #f1f3f4;
    --card-bg: #ffffff;
    --card-bg-hover: #fafafa;
    
    /* Text Colors */
    --text-primary: #1a1a2e;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;
    
    /* Border Colors */
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    --border-dark: #d1d5db;
    
    /* Shadow */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Typography */
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Plus Jakarta Sans', sans-serif;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-popover: 400;
    --z-tooltip: 500;
    --z-toast: 600;
    
    /* Breakpoints */
    --mobile-max: 767px;
    --tablet-min: 768px;
    --tablet-max: 1024px;
    --desktop-min: 1025px;
    
    /* Container widths */
    --container-mobile: 100%;
    --container-tablet: 600px;
    --container-desktop: 1200px;
    
    /* Sidebar width */
    --sidebar-width: 280px;
}

/* Dark Mode Variables */
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f0f1a;
        --bg-secondary: #1a1a2e;
        --card-bg: #1e1e32;
        --card-bg-hover: #252540;
        --text-primary: #f1f1f4;
        --text-secondary: #a0a0b0;
        --text-muted: #6b6b80;
        --border: #2a2a40;
        --border-light: #252540;
        --border-dark: #3a3a50;
    }
}