/* CSS Variables - Design System for Infowise Enterprises */
/* Based on corporate design system principles */

:root {
    /* ===== Color Palette ===== */
    
    /* Primary Colors - Corporate Brand */
    --color-primary-50: #e6f7ff;
    --color-primary-100: #b3e0ff;
    --color-primary-200: #80c9ff;
    --color-primary-300: #4db2ff;
    --color-primary-400: #1a9bff;
    --color-primary-500: #0084e6; /* Main Primary */
    --color-primary-600: #006db3;
    --color-primary-700: #005680;
    --color-primary-800: #003f4d;
    --color-primary-900: #002833;
    
    /* Secondary Colors - Accent */
    --color-secondary-50: #f3e5f5;
    --color-secondary-100: #e1bee7;
    --color-secondary-200: #ce93d8;
    --color-secondary-300: #ba68c8;
    --color-secondary-400: #ab47bc;
    --color-secondary-500: #9c27b0; /* Main Secondary */
    --color-secondary-600: #8e24aa;
    --color-secondary-700: #7b1fa2;
    --color-secondary-800: #6a1b9a;
    --color-secondary-900: #4a148c;
    
    /* Neutral Colors - Grayscale */
    --color-neutral-50: #fafafa;
    --color-neutral-100: #f5f5f5;
    --color-neutral-200: #eeeeee;
    --color-neutral-300: #e0e0e0;
    --color-neutral-400: #bdbdbd;
    --color-neutral-500: #9e9e9e;
    --color-neutral-600: #757575;
    --color-neutral-700: #616161;
    --color-neutral-800: #424242;
    --color-neutral-900: #212121;
    
    /* Semantic Colors */
    --color-success: #4caf50;
    --color-warning: #ff9800;
    --color-error: #f44336;
    --color-info: #2196f3;
    
    /* Background Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #e9ecef;
    --color-bg-dark: #121212;
    --color-bg-darker: #0a0a0a;
    
    /* Text Colors */
    --color-text-primary: #212121;
    --color-text-secondary: #666666;
    --color-text-tertiary: #999999;
    --color-text-light: #ffffff;
    --color-text-muted: #b0b0b0;
    
    /* Border Colors */
    --color-border-light: #e0e0e0;
    --color-border-medium: #cccccc;
    --color-border-dark: #999999;
    
    /* ===== Typography ===== */
    
    /* Font Families */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-family-secondary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'SF Mono', 'Roboto Mono', 'Courier New', monospace;
    
    /* Font Sizes - Type Scale (1.25 ratio) */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 1.875rem;  /* 30px */
    --font-size-4xl: 2.25rem;   /* 36px */
    --font-size-5xl: 2.75rem;   /* 44px */
    --font-size-6xl: 3.25rem;   /* 52px */
    --font-size-7xl: 4rem;      /* 64px */
    
    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    --line-height-loose: 2;
    
    /* Letter Spacing */
    --letter-spacing-tight: -0.025em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;
    --letter-spacing-wider: 0.05em;
    --letter-spacing-widest: 0.1em;
    
    /* ===== Spacing ===== */
    /* 4px base unit (0.25rem) */
    --spacing-0: 0;
    --spacing-1: 0.25rem;   /* 4px */
    --spacing-2: 0.5rem;    /* 8px */
    --spacing-3: 0.75rem;   /* 12px */
    --spacing-4: 1rem;      /* 16px */
    --spacing-5: 1.25rem;   /* 20px */
    --spacing-6: 1.5rem;    /* 24px */
    --spacing-8: 2rem;      /* 32px */
    --spacing-10: 2.5rem;   /* 40px */
    --spacing-12: 3rem;     /* 48px */
    --spacing-16: 4rem;     /* 64px */
    --spacing-20: 5rem;     /* 80px */
    --spacing-24: 6rem;     /* 96px */
    --spacing-32: 8rem;     /* 128px */
    
    /* ===== Border Radius ===== */
    --radius-none: 0;
    --radius-sm: 0.125rem;   /* 2px */
    --radius-base: 0.25rem;  /* 4px */
    --radius-md: 0.375rem;   /* 6px */
    --radius-lg: 0.5rem;     /* 8px */
    --radius-xl: 0.75rem;    /* 12px */
    --radius-2xl: 1rem;      /* 16px */
    --radius-3xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;
    
    /* ===== Shadows ===== */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
    
    /* ===== Transitions ===== */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* ===== Z-Index ===== */
    --z-index-dropdown: 1000;
    --z-index-sticky: 1020;
    --z-index-fixed: 1030;
    --z-index-modal-backdrop: 1040;
    --z-index-modal: 1050;
    --z-index-popover: 1060;
    --z-index-tooltip: 1070;
    --z-index-toast: 1080;
    
    /* ===== Container Widths ===== */
    --container-xs: 20rem;    /* 320px */
    --container-sm: 24rem;    /* 384px */
    --container-md: 28rem;    /* 448px */
    --container-lg: 32rem;    /* 512px */
    --container-xl: 36rem;    /* 576px */
    --container-2xl: 42rem;   /* 672px */
    --container-3xl: 48rem;   /* 768px */
    --container-4xl: 56rem;   /* 896px */
    --container-5xl: 64rem;   /* 1024px */
    --container-6xl: 72rem;   /* 1152px */
    --container-7xl: 80rem;   /* 1280px */
    
    /* ===== Grid ===== */
    --grid-columns: 12;
    --grid-gap: var(--spacing-6);
    --grid-gap-sm: var(--spacing-4);
    --grid-gap-lg: var(--spacing-8);
    
    /* ===== Breakpoints ===== */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

/* Dark Theme Variables */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg-primary: #121212;
        --color-bg-secondary: #1e1e1e;
        --color-bg-tertiary: #2d2d2d;
        --color-text-primary: #ffffff;
        --color-text-secondary: #b0b0b0;
        --color-text-tertiary: #888888;
        --color-border-light: #333333;
        --color-border-medium: #444444;
        --color-border-dark: #555555;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --color-primary-500: #0056b3;
        --color-secondary-500: #7b1fa2;
        --color-text-primary: #000000;
        --color-text-secondary: #333333;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    :root {
        --transition-fast: 0ms;
        --transition-base: 0ms;
        --transition-slow: 0ms;
    }
}