/**
 * AgroBridge Legal Pages - Base Styles
 * Jony Ive Philosophy × Agricultural Excellence × Digital Trust
 * Version: 1.0.0
 */

/* ==========================================================================
   CSS CUSTOM PROPERTIES - DESIGN TOKENS
   ========================================================================== */
:root {
  /* Primary: Agricultural Excellence */
  --color-primary-900: #052e1c;
  --color-primary-800: #064e32;
  --color-primary-700: #0a5c36;
  --color-primary-600: #0d7a4a;
  --color-primary-500: #10b981;
  --color-primary-100: #d1fae5;
  
  /* Accent: Premium Gold (Use Sparingly) */
  --color-gold-600: #b8941f;
  --color-gold-500: #d4af37;
  --color-gold-400: #e6c657;
  --color-gold-100: #fbf2d5;
  --color-gold-50: #fffbeb;
  
  /* Neutrals: Sophisticated Grayscale */
  --color-gray-950: #030712;
  --color-gray-900: #111827;
  --color-gray-800: #1f2937;
  --color-gray-700: #374151;
  --color-gray-600: #4b5563;
  --color-gray-500: #6b7280;
  --color-gray-400: #9ca3af;
  --color-gray-300: #d1d5db;
  --color-gray-200: #e5e7eb;
  --color-gray-100: #f3f4f6;
  --color-gray-50: #f9fafb;
  --color-white: #ffffff;
  
  /* Semantic Colors */
  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-error: #dc2626;
  --color-info: #2563eb;
  
  /* Transparency Scale */
  --opacity-hover: 0.8;
  --opacity-disabled: 0.4;
  --opacity-subtle: 0.6;
  
  /* Font Families */
  --font-display: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', Monaco, Consolas, monospace;
  
  /* Type Scale (Perfect Fourth Ratio: 1.333) */
  --text-3xs: clamp(0.5rem, 0.5rem + 0vw, 0.5rem);
  --text-2xs: clamp(0.625rem, 0.6rem + 0.125vw, 0.75rem);
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3rem);
  
  /* Font Weights */
  --weight-light: 300;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  
  /* Line Heights (Golden Ratio: 1.618 for body) */
  --leading-tight: 1.2;
  --leading-snug: 1.4;
  --leading-normal: 1.618;
  --leading-relaxed: 1.75;
  
  /* Letter Spacing */
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.1em;
  
  /* Spacing System (8px Grid) */
  --space-px: 1px;
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
  
  /* Component-specific */
  --section-padding-y: var(--space-24);
  --container-padding-x: var(--space-6);
  --card-padding: var(--space-8);
  --card-gap: var(--space-6);
  
  /* Shadows (Simulating light from top-left at 45°) */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Special Shadows */
  --shadow-gold: 0 0 40px rgba(212, 175, 55, 0.15);
  --shadow-gold-lg: 0 0 60px rgba(212, 175, 55, 0.2);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Animation Durations */
  --duration-instant: 0ms;
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 700ms;
  
  /* Easings (Physics-based) */
  --ease-linear: linear;
  --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-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Stagger delays */
  --stagger-fast: 50ms;
  --stagger-normal: 100ms;
  --stagger-slow: 150ms;
  
  /* 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-cookie-banner: 9999;
}

/* ==========================================================================
   CSS RESET - MODERN NORMALIZE
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  font-weight: var(--weight-regular);
  letter-spacing: var(--tracking-normal);
  color: var(--color-gray-800);
  background-color: var(--color-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ==========================================================================
   TYPOGRAPHY SYSTEM
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-gray-900);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  max-width: 65ch;
  orphans: 2;
  widows: 2;
}

a {
  color: var(--color-primary-700);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--color-primary-600);
  text-decoration-thickness: 2px;
}

code, kbd, samp, pre {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-feature-settings: 'zero' 1, 'ss01' 1;
}

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

.text-gold {
  color: var(--color-gold-500);
}

.text-primary {
  color: var(--color-primary-700);
}

.text-gray {
  color: var(--color-gray-600);
}

:focus-visible {
  outline: 2px solid var(--color-gold-500);
  outline-offset: 2px;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary-700);
  color: var(--color-white);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  z-index: 10000;
  text-decoration: none;
  font-weight: var(--weight-semibold);
  font-size: var(--text-base);
  border: 2px solid var(--color-gold-500);
  transition: top var(--duration-normal) var(--ease-out);
}

.skip-link:focus {
  top: var(--space-4);
}

/* ==========================================================================
   ACCESSIBILITY - 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;
  }
}

/* ==========================================================================
   SELECTION STYLES
   ========================================================================== */
::selection {
  background-color: var(--color-gold-500);
  color: var(--color-primary-900);
}

::-moz-selection {
  background-color: var(--color-gold-500);
  color: var(--color-primary-900);
}