:root {
    /* Color System */
    --color-primary: #A931FF;
    --color-secondary: #FF19F6;
    --color-accent: #4D00FF;
    --color-success: #00FF00;
    --color-info: #00FFF0;
    --color-warning: #ffc107;
    --color-danger: #ff5252;

    /* Background Colors */
    --color-bg-primary: #1B2225;
    --color-bg-secondary: #21282D;
    --color-bg-tertiary: #2C333A;
    --color-bg-overlay: rgba(0, 0, 0, 0.5);
    --color-bg-hover: #2C333A;
    --color-bg-input: #2C333A;
    
    /* Text Colors */
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #BBBBBB;
    --color-text-muted: #BBBBBB;
    
    /* Border Colors */
    --color-border: #3D454D;
    --color-border-hover: #4D5761;
    
    /* Gradients */
    --gradient-primary: conic-gradient(
        from var(--gradient-angle),
        var(--color-primary),
        var(--color-secondary),
        var(--color-accent),
        var(--color-primary)
    );
    --gradient-secondary: conic-gradient(
        from var(--gradient-angle),
        var(--color-info),
        var(--color-success),
        var(--color-info)
    );
    
    /* Spacing System */
    --spacing-xs: 0.5rem;    /* 8px */
    --spacing-sm: 0.75rem;   /* 12px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    
    /* Border Radius */
    --radius-sm: 0.5rem;    /* 8px */
    --radius-md: 0.75rem;   /* 12px */
    --radius-lg: 1rem;      /* 16px */
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* Z-index Scale */
    --z-index-dropdown: 1000;
    --z-index-sticky: 1020;
    --z-index-fixed: 1030;
    --z-index-modal: 1040;
    --z-index-popover: 1050;
    --z-index-tooltip: 1060;
    
    /* Typography */
    --font-family-base: 'Nunito Sans', 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.875rem;  /* 14px */
    --font-size-sm: 1rem;      /* 16px */
    --font-size-md: 1.125rem;  /* 18px */
    --font-size-lg: 1.25rem;   /* 20px */
    --font-size-xl: 1.5rem;    /* 24px */
    --font-size-2xl: 2rem;     /* 32px */
    --font-size-3xl: 3rem;     /* 48px */
    
    /* Layout */
    --header-height: 66px;
    --container-width: 55vw;
    --container-padding: 2.5rem;
    --card-min-width: 280px;
    --card-min-height: 200px;
    --chat-width: 400px;
}