/* Global Responsive Base Styles */

/* CSS Custom Properties - Responsive System */
:root {
    /* Responsive Typography Scale */
    --font-size-xs: clamp(0.75rem, 0.5vw + 0.5rem, 0.875rem);
    --font-size-sm: clamp(0.875rem, 0.75vw + 0.5rem, 1rem);
    --font-size-base: clamp(1rem, 1vw + 0.5rem, 1.125rem);
    --font-size-lg: clamp(1.125rem, 1.5vw + 0.5rem, 1.25rem);
    --font-size-xl: clamp(1.25rem, 2vw + 0.5rem, 1.5rem);
    --font-size-2xl: clamp(1.5rem, 3vw + 0.5rem, 2rem);
    --font-size-3xl: clamp(1.875rem, 4vw + 0.5rem, 2.5rem);
    --font-size-4xl: clamp(2.25rem, 5vw + 0.5rem, 3.5rem);
    --font-size-5xl: clamp(3rem, 6vw + 1rem, 4.5rem);
    
    /* Responsive Spacing Scale */
    --space-xs: clamp(0.25rem, 0.5vw, 0.5rem);
    --space-sm: clamp(0.5rem, 1vw, 1rem);
    --space-md: clamp(1rem, 2vw, 1.5rem);
    --space-lg: clamp(1.5rem, 3vw, 2.5rem);
    --space-xl: clamp(2rem, 4vw, 3rem);
    --space-2xl: clamp(3rem, 5vw, 4rem);
    --space-3xl: clamp(4rem, 6vw, 5rem);
    
    /* Container Widths */
    --container-xs: 100%;
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1536px;
    --container-max: 1920px;
    
    /* Responsive Padding */
    --container-padding: clamp(1rem, 4vw, 2rem);
    
    /* Breakpoints (for reference in media queries) */
    --bp-sm: 480px;
    --bp-md: 768px;
    --bp-lg: 1024px;
    --bp-xl: 1280px;
    --bp-2xl: 1536px;
    --bp-3xl: 1920px;
    --bp-4k: 2560px;
}

/* Global Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Responsive Base Typography */
html {
    font-size: var(--font-size-base);
    /* Improve text rendering */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Container System */
.container {
    width: 100%;
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.container-xs { max-width: var(--container-xs); }
.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }
.container-2xl { max-width: var(--container-2xl); }
.container-max { max-width: var(--container-max); }

/* Default container for most content */
.container:not([class*="container-"]) {
    max-width: var(--container-xl);
}

/* Responsive Typography Utilities */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }
.text-4xl { font-size: var(--font-size-4xl); }
.text-5xl { font-size: var(--font-size-5xl); }

/* Responsive Spacing Utilities */
.space-y-xs > * + * { margin-top: var(--space-xs); }
.space-y-sm > * + * { margin-top: var(--space-sm); }
.space-y-md > * + * { margin-top: var(--space-md); }
.space-y-lg > * + * { margin-top: var(--space-lg); }
.space-y-xl > * + * { margin-top: var(--space-xl); }
.space-y-2xl > * + * { margin-top: var(--space-2xl); }
.space-y-3xl > * + * { margin-top: var(--space-3xl); }

/* Large Screen Optimizations */
@media (min-width: 1440px) {
    :root {
        /* Slightly increase spacing on large screens */
        --container-padding: clamp(2rem, 5vw, 3rem);
    }
}

@media (min-width: 1920px) {
    :root {
        /* Optimize for full HD displays */
        --container-padding: clamp(2.5rem, 6vw, 4rem);
    }
}

@media (min-width: 2560px) {
    :root {
        /* 4K and ultra-wide display optimizations */
        --container-padding: clamp(3rem, 7vw, 5rem);
    }
    
    /* Prevent content from becoming too large on 4K */
    .container:not([class*="container-"]) {
        max-width: var(--container-max);
    }
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    :root {
        /* Tighter spacing on mobile */
        --container-padding: clamp(1rem, 3vw, 1.5rem);
    }
}

@media (max-width: 480px) {
    :root {
        /* Very small screens */
        --container-padding: 1rem;
    }
}

/* Accessibility: Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}