/* ============================================
   MedCart Kenya - CSS Custom Properties
   ============================================ */

:root {
  /* ---- Primary Colors ---- */
  --color-primary: #007A3D;
  --color-primary-dark: #006432;
  --color-primary-light: #E8F5E9;
  --color-primary-hover: #006E37;
  --color-primary-brand: #00A651;

  /* ---- Secondary Colors ---- */
  --color-secondary: #1B3A5C;
  --color-secondary-light: #2A4F7A;

  /* ---- Accent Colors ---- */
  --color-accent: #FF6B35;
  --color-accent-dark: #E55A28;
  --color-accent-light: #FFF0EB;

  /* ---- Neutral Colors ---- */
  --color-bg: #FFFFFF;
  --color-card: #FFFFFF;
  --color-border: #E2E8F0;
  --color-border-light: #F1F5F9;

  /* ---- Text Colors ---- */
  --color-heading: #1A1A2E;
  --color-body: #5A6B7B;
  --color-muted: #94A3B8;
  --color-white: #FFFFFF;

  /* ---- Semantic Colors ---- */
  --color-rx: #DC2626;
  --color-rx-light: #FEF2F2;
  --color-success: #00A651;
  --color-success-light: #E8F5E9;
  --color-error: #DC2626;
  --color-error-light: #FEF2F2;
  --color-warning: #F59E0B;
  --color-warning-light: #FFFBEB;
  --color-info: #3B82F6;
  --color-info-light: #EFF6FF;

  /* ---- Spacing Scale (4px base) ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* ---- Typography ---- */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --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 */

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* ---- Shadows ---- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-green: 0 4px 14px rgba(0, 166, 81, 0.25);
  --shadow-card-hover: 0 8px 25px rgba(0, 166, 81, 0.15);

  /* ---- Border Radius ---- */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* ---- Layout ---- */
  --max-width: 1200px;
  --header-height: 64px;
  --top-bar-height: 36px;
  --sidebar-width: 260px;

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

  /* ---- Z-Index Scale ---- */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* ---- Breakpoints (for reference, used in media queries) ----
     sm: 640px
     md: 768px
     lg: 1024px
     xl: 1200px
  */
}