/* ==========================================================================
   CyberAware Initiative — Design Tokens
   Single source of truth for colors, typography, spacing, and breakpoints.
   ========================================================================== */

:root {
  /* --- Colors --- */
  --color-primary:        #0A1628;  /* Cyber Navy */
  --color-action:         #1B6EC2;  /* Shield Blue */
  --color-accent:         #0D9488;  /* Sentinel Teal */
  --color-cta:            #D97706;  /* Alert Amber */

  --color-bg:             #F8FAFC;  /* Off-White */
  --color-white:          #FFFFFF;
  --color-border:         #E2E8F0;  /* Light Gray */
  --color-text:           #1E293B;  /* Dark Gray — body text */
  --color-text-secondary: #64748B;  /* Medium Gray — captions */
  --color-heading:        #0F172A;  /* Near Black — headings */

  --color-success:        #16A34A;
  --color-error:          #DC2626;
  --color-info:           #2563EB;

  /* Hover / focus variants */
  --color-action-hover:   #1559A0;
  --color-accent-hover:   #0B7A70;
  --color-cta-hover:      #B45309;

  /* --- Typography --- */
  --font-heading:  'Space Grotesk', sans-serif;
  --font-body:     'Inter', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;

  --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 */

  --line-height-tight:  1.2;
  --line-height-normal: 1.6;
  --line-height-loose:  1.8;

  --font-weight-regular:  400;
  --font-weight-medium:   500;
  --font-weight-semibold: 600;
  --font-weight-bold:     700;

  /* --- Spacing --- */
  --space-1:  0.25rem;  /* 4px */
  --space-2:  0.5rem;   /* 8px */
  --space-3:  0.75rem;  /* 12px */
  --space-4:  1rem;     /* 16px */
  --space-5:  1.25rem;  /* 20px */
  --space-6:  1.5rem;   /* 24px */
  --space-8:  2rem;     /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */

  /* --- Layout --- */
  --container-max: 1200px;
  --container-padding: 1.5rem;

  /* --- Breakpoints (used in media queries, not as custom properties) ---
     --bp-sm:   640px
     --bp-md:   768px
     --bp-lg:  1024px
     --bp-xl:  1280px
  */

  /* --- Borders --- */
  --radius-sm:  0.25rem;  /* 4px */
  --radius-md:  0.5rem;   /* 8px */
  --radius-lg:  0.75rem;  /* 12px */
  --radius-xl:  1rem;     /* 16px */
  --radius-full: 9999px;

  /* --- Shadows --- */
  --shadow-sm:  0 1px 2px rgba(10, 22, 40, 0.05);
  --shadow-md:  0 4px 6px rgba(10, 22, 40, 0.07);
  --shadow-lg:  0 10px 15px rgba(10, 22, 40, 0.1);
  --shadow-xl:  0 20px 25px rgba(10, 22, 40, 0.12);

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