/* MindDharma Design System - CSS Custom Properties */

:root {
    /* Primary Colors */
    --color-primary-black: #1A1A1A;
    --color-text-primary: #1A1A1A;
    --color-text-secondary: #6B7280;
    --color-text-tertiary: #9CA3AF;

    /* Background Colors */
    --color-background: #FAFAFA;
    --color-background-white: #FFFFFF;
    --color-background-gray: #E5E5E5;

    /* Surface Colors */
    --color-surface: #FFFFFF;
    --color-highlight: rgba(26, 26, 26, 0.04);

    /* Accent Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-info: #3B82F6;

    /* Interactive States */
    --color-ripple-light: rgba(26, 26, 26, 0.06);
    --color-hover: rgba(26, 26, 26, 0.08);
    --color-disabled: rgba(26, 26, 26, 0.3);

    /* Typography */
    --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    /* Font Sizes */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 2rem;      /* 32px */
    --text-4xl: 2.25rem;   /* 36px */
    --text-5xl: 3rem;      /* 48px */
    --text-6xl: 4rem;      /* 64px */

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;

    /* Shadow System (9 Elevation Levels) */
    --shadow-1: 0 1px 2px 0 rgba(0,0,0,0.05);
    
    --shadow-2: 0 2px 4px 0 rgba(0,0,0,0.06), 
                0 1px 2px 0 rgba(0,0,0,0.02);
    
    --shadow-3: 0 4px 6px -1px rgba(0,0,0,0.08), 
                0 2px 4px -1px rgba(0,0,0,0.04);
    
    --shadow-4: 0 10px 15px -3px rgba(0,0,0,0.1), 
                0 4px 6px -2px rgba(0,0,0,0.05);
    
    --shadow-5: 0 20px 25px -5px rgba(0,0,0,0.1), 
                0 10px 10px -5px rgba(0,0,0,0.04);
    
    --shadow-6: 0 25px 50px -12px rgba(0,0,0,0.25);
    
    --shadow-7: 0 35px 60px -12px rgba(0,0,0,0.3);
    
    --shadow-8: 0 40px 70px -12px rgba(0,0,0,0.35);
    
    --shadow-9: 0 50px 100px -20px rgba(0,0,0,0.5);

    /* Backdrop Blur */
    --backdrop-blur: blur(16px);
    --backdrop-blur-lg: blur(24px);

    /* Spacing System (8px base unit) */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;     /* 64px */
    --spacing-4xl: 5rem;     /* 80px */
    --spacing-5xl: 6rem;     /* 96px */

    /* Border Radius */
    --radius-sm: 0.25rem;    /* 4px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-2xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;

    /* Layout Breakpoints */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;

    /* Animation Durations */
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;

    /* Animation Curves */
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;

    /* Container Sizes */
    --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 */
    --container-full: 100%;

    /* iPhone Mockup Dimensions */
    --iphone-width: 375px;
    --iphone-height: 812px;
    --iphone-aspect: calc(812 / 375);
    --iphone-border-radius: 40px;
}