/**
 * JEDH Design System - CSS Custom Properties
 * Generated from design-tokens.json
 *
 * This file contains all design tokens as CSS variables for consistent
 * styling across the entire website.
 */

:root {
  /* ========================================
     COLORS
     ======================================== */

  /* Primary Colors (Blue) - Professional Medical Blue */
  --color-primary-50: #EBF5FF;
  --color-primary-100: #D6EBFF;
  --color-primary-200: #ADD6FF;
  --color-primary-300: #85C2FF;
  --color-primary-400: #5CADFF;
  --color-primary-500: #0066CC;
  --color-primary-600: #0052A3;
  --color-primary-700: #003D7A;
  --color-primary-800: #002952;
  --color-primary-900: #001429;

  /* Neutral Colors (Grays) */
  --color-neutral-0: #FFFFFF;
  --color-neutral-50: #F9FAFB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-200: #E5E7EB;
  --color-neutral-300: #D1D5DB;
  --color-neutral-400: #9CA3AF;
  --color-neutral-500: #6B7280;
  --color-neutral-600: #4B5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1F2937;
  --color-neutral-900: #111827;
  --color-neutral-950: #030712;

  /* Success Colors (Green) */
  --color-success-50: #ECFDF5;
  --color-success-100: #D1FAE5;
  --color-success-500: #10B981;
  --color-success-600: #059669;
  --color-success-700: #047857;

  /* Warning Colors (Yellow) */
  --color-warning-50: #FFFBEB;
  --color-warning-100: #FEF3C7;
  --color-warning-500: #F59E0B;
  --color-warning-600: #D97706;
  --color-warning-700: #B45309;

  /* Error Colors (Red) */
  --color-error-50: #FEF2F2;
  --color-error-100: #FEE2E2;
  --color-error-500: #EF4444;
  --color-error-600: #DC2626;
  --color-error-700: #B91C1C;

  /* Info Colors (Blue) */
  --color-info-50: #EFF6FF;
  --color-info-100: #DBEAFE;
  --color-info-500: #3B82F6;
  --color-info-600: #2563EB;
  --color-info-700: #1D4ED8;

  /* Brand Colors (Third-party services) */
  --color-whatsapp: #25D366;
  --color-youtube: #FF0000;

  /* Extended Warning Colors */
  --color-warning-400: #FBBF24;

  /* Accent Colors for Visual Interest */
  --color-accent-teal: #0D9488;
  --color-accent-teal-light: #14B8A6;
  --color-accent-purple: #7C3AED;
  --color-accent-purple-light: #8B5CF6;

  /* ========================================
     TYPOGRAPHY
     ======================================== */

  /* Font Families */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-secondary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-mono: 'Fira Code', 'Monaco', 'Courier New', monospace;

  /* Font Sizes */
  --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: 3rem;        /* 48px */
  --font-size-6xl: 3.75rem;     /* 60px */
  --font-size-7xl: 4.5rem;      /* 72px */

  /* Font Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --line-height-loose: 2;

  /* Letter Spacing */
  --letter-spacing-tighter: -0.05em;
  --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
     ======================================== */

  --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 */
  --spacing-40: 10rem;    /* 160px */
  --spacing-48: 12rem;    /* 192px */
  --spacing-56: 14rem;    /* 224px */
  --spacing-64: 16rem;    /* 256px */

  /* ========================================
     BORDER RADIUS
     ======================================== */

  --radius-none: 0;
  --radius-sm: 0.25rem;    /* 4px */
  --radius-base: 0.5rem;   /* 8px */
  --radius-md: 0.75rem;    /* 12px */
  --radius-lg: 1rem;       /* 16px */
  --radius-xl: 1.25rem;    /* 20px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-3xl: 2rem;      /* 32px */
  --radius-full: 9999px;

  /* ========================================
     SHADOWS
     ======================================== */

  --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-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);

  /* ========================================
     BREAKPOINTS (for reference in JS)
     ======================================== */

  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;

  /* ========================================
     Z-INDEX
     ======================================== */

  --z-index-0: 0;
  --z-index-10: 10;
  --z-index-20: 20;
  --z-index-30: 30;
  --z-index-40: 40;
  --z-index-50: 50;
  --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;

  /* ========================================
     TRANSITIONS
     ======================================== */

  /* Duration */
  --duration-fast: 150ms;
  --duration-base: 250ms;
  --duration-slow: 350ms;
  --duration-slower: 500ms;

  /* Timing Functions */
  --timing-ease: ease;
  --timing-ease-in: ease-in;
  --timing-ease-out: ease-out;
  --timing-ease-in-out: ease-in-out;
  --timing-linear: linear;

  /* ========================================
     OPACITY
     ======================================== */

  --opacity-0: 0;
  --opacity-5: 0.05;
  --opacity-10: 0.1;
  --opacity-20: 0.2;
  --opacity-30: 0.3;
  --opacity-40: 0.4;
  --opacity-50: 0.5;
  --opacity-60: 0.6;
  --opacity-70: 0.7;
  --opacity-80: 0.8;
  --opacity-90: 0.9;
  --opacity-100: 1;

  /* ========================================
     ICON SIZES
     ======================================== */

  --icon-size-xs: 1rem;      /* 16px */
  --icon-size-sm: 1.25rem;   /* 20px */
  --icon-size-base: 1.5rem;  /* 24px */
  --icon-size-lg: 2rem;      /* 32px */
  --icon-size-xl: 2.5rem;    /* 40px */
  --icon-size-2xl: 3rem;     /* 48px */

  /* ========================================
     CONTAINER & LAYOUT
     ======================================== */

  --container-max-width: 1200px;
  --touch-target-min: 44px;

  /* ========================================
     LEGACY ALIASES (for backward compatibility)
     ======================================== */

  --primary-color: var(--color-primary-500);
  --primary-dark: var(--color-primary-700);
  --secondary-color: var(--color-success-500);
  --text-dark: var(--color-neutral-900);
  --text-medium: var(--color-neutral-600);
  --bg-white: var(--color-neutral-0);
  --bg-light: var(--color-neutral-50);
  --border-color: var(--color-neutral-200);
  --font-primary: var(--font-family-primary);
  --font-heading: var(--font-family-secondary);
}

/* ========================================
   RESPONSIVE FONT SIZES
   ======================================== */

/* Mobile adjustments - reduce display/heading sizes by 0.6-0.7x */
@media (max-width: 768px) {
  :root {
    --font-size-7xl: 2.7rem;   /* 72px → 43px (0.6x) */
    --font-size-6xl: 2.25rem;  /* 60px → 36px (0.6x) */
    --font-size-5xl: 2.1rem;   /* 48px → 34px (0.7x) */
    --font-size-4xl: 1.575rem; /* 36px → 25px (0.7x) */
    --font-size-3xl: 1.5rem;   /* 30px → 24px (0.8x) */
  }
}

/* ========================================
   REDUCED MOTION SUPPORT
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast: 0ms;
    --duration-base: 0ms;
    --duration-slow: 0ms;
    --duration-slower: 0ms;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

/* Screen reader only - for accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible - for keyboard navigation */
.focus-visible:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}