/*
 * Nomos Landing Page
 * Bayesian Games — 2025
 */

/* ============================================
   CSS Imports
   ============================================ */

@import url('typography.css');
@import url('layout.css');
@import url('components.css');

/* ============================================
   CSS Reset & Base Styles
   ============================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
}

/* Remove default button styles */
button {
    background: none;
    border: none;
    cursor: pointer;
}

/* Remove list styles */
ul,
ol {
    list-style: none;
}

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */

:root {
    /* Colors */
    --color-bg: #FAFAFA;
    --color-text: #1A1A1A;
    --color-text-muted: #6B6B6B;
    --color-accent: #D4A574;  /* Faded utility orange */
    --color-border: #E0E0E0;
    --color-white: #FFFFFF;
    --color-black: #000000;

    /* Spacing (8px grid) */
    --space-xs: 0.5rem;    /* 8px */
    --space-sm: 1rem;      /* 16px */
    --space-md: 1.5rem;    /* 24px */
    --space-lg: 2rem;      /* 32px */
    --space-xl: 3rem;      /* 48px */
    --space-2xl: 4rem;     /* 64px */
    --space-3xl: 6rem;     /* 96px */
    --space-4xl: 8rem;     /* 128px */

    /* Typography Scale */
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1.125rem;   /* 18px */
    --font-size-lg: 1.25rem;      /* 20px */
    --font-size-xl: 1.5rem;       /* 24px */
    --font-size-2xl: 2rem;        /* 32px */
    --font-size-3xl: 2.5rem;      /* 40px */
    --font-size-4xl: 3rem;        /* 48px */
    --font-size-5xl: 4rem;        /* 64px */
    --font-size-6xl: 6rem;        /* 96px */

    /* Font Families */
    --font-body: 'Sohne', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Sohne Breit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Font Weights */
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;

    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.6;

    /* Letter Spacing */
    --letter-spacing-tight: -0.02em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.05em;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Z-index */
    --z-scroll-progress: 1000;
    --z-nav: 100;
    --z-content: 1;

    /* Breakpoints (for reference in media queries) */
    --breakpoint-mobile: 768px;
    --breakpoint-tablet: 1024px;
}

/* ============================================
   Accessibility Utilities
   ============================================ */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles */
*:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}