/* =========================================
   VARIABLES.CSS - Design Tokens
   Theme: KT Tape Inspired - Athletic, bold, high-contrast, performance
   ========================================= */

:root {
  /* ---- Colors ---- */
  /* Main palette */
  --color-primary: #111418;       /* Deep Charcoal/Black */
  --color-primary-light: #2A2D34; /* Dark grey for secondary dark backgrounds */
  
  /* Bold Athletic Accent (KT Tape style orange) */
  --color-accent: #F36122;        /* Vibrant Performance Orange */
  --color-accent-hover: #D94A10;  
  --color-accent-light: #FFF0EB;

  /* Secondary Accent (Blue for trust/medical) */
  --color-secondary: #0056b3; 
  
  /* Backgrounds */
  --color-bg-main: #FFFFFF;
  --color-bg-surface: #FFFFFF;
  --color-bg-elevated: #F8F9FA;   /* Very light grey */
  --color-bg-dark: #1F2229;
  
  /* Text */
  --color-text-primary: #111418;
  --color-text-secondary: #4A4F58;
  --color-text-muted: #8E94A0;
  --color-text-inverse: #FFFFFF;
  
  /* Status / Utility */
  --color-success: #28a745;
  --color-warning: #ffc107;
  --color-error: #dc3545;
  --color-border: #E5E7EB;
  --color-border-light: #F3F4F6;
  --color-border-dark: #374151;

  /* ---- Typography ---- */
  --font-family-primary: 'Inter', system-ui, -apple-system, sans-serif;
  --font-family-display: 'Outfit', system-ui, sans-serif;
  
  /* 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: 2rem;       /* 32px */
  --font-size-4xl: 2.75rem;    /* 44px */
  --font-size-5xl: 4rem;       /* 64px - Massive hero text */
  --font-size-6xl: 5.5rem;     /* 88px - Ultra bold text */
  
  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-black: 900;    /* For aggressive athletic headers */

  /* ---- Spacing ---- */
  --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 */

  /* ---- Radii ---- */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* ---- Shadows ---- */
  --shadow-xs: none;
  --shadow-sm: 0 8px 22px rgba(15, 23, 42, 0.06);
  --shadow-badge: 0 4px 10px rgba(0,0,0,0.15);
  --shadow-card: 0 14px 32px rgba(15, 23, 42, 0.08);
  --shadow-card-hover: 0 20px 42px rgba(15, 23, 42, 0.14);
  --shadow-header: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 60px rgba(0, 0, 0, 0.18);

  /* ---- Transitions ---- */
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.25s ease-out;
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  /* ---- Gradients ---- */
  --gradient-hero: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  --gradient-cta: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-hover) 100%);

  /* ---- Line Heights ---- */
  --line-height-base: 1.6;
  --line-height-relaxed: 1.7;

  /* Layout */
  --container-width: 1240px;
  --page-gutter-desktop: 32px;
  --page-gutter-mobile: 16px;
  --section-space-desktop: 88px;
  --section-space-mobile: 56px;
  --touch-target: 44px;
  --header-height: auto;
}