/**
 * FOX IPTV Design System
 * Professional design tokens for consistent, modern UI
 * Version: 2.0.0
 */

:root {
  /* ============================================
     COLORS - Primary (Orange Brand)
     ============================================ */
  --color-primary-50: #fff7ed;
  --color-primary-100: #ffedd5;
  --color-primary-200: #fed7aa;
  --color-primary-300: #fdba74;
  --color-primary-400: #fb923c;
  --color-primary-500: #fdac08;  /* Main brand orange */
  --color-primary-600: #ea580c;
  --color-primary-700: #c2410c;
  --color-primary-800: #9a3412;
  --color-primary-900: #7c2d12;
  
  /* ============================================
     COLORS - Secondary (Gold Premium)
     ============================================ */
  --color-secondary-400: #fbbf24;
  --color-secondary-500: #ffd700;  /* Main gold */
  --color-secondary-600: #f59e0b;
  
  /* ============================================
     COLORS - Neutral (Grays)
     ============================================ */
  --color-neutral-50: #fafafa;
  --color-neutral-100: #f5f5f5;
  --color-neutral-200: #e5e5e5;
  --color-neutral-300: #d4d4d4;
  --color-neutral-400: #a3a3a3;
  --color-neutral-500: #737373;
  --color-neutral-600: #525252;
  --color-neutral-700: #404040;
  --color-neutral-800: #262626;
  --color-neutral-900: #171717;
  --color-neutral-950: #0a0a0a;
  
  /* ============================================
     COLORS - Semantic
     ============================================ */
  --color-success: #22c55e;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  --color-info: #3b82f6;
  
  /* ============================================
     TYPOGRAPHY - Font Sizes (Fluid)
     Uses clamp() for smooth responsive scaling
     ============================================ */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);      /* 12-14px */
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);        /* 14-16px */
  --font-size-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);        /* 16-18px */
  --font-size-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);       /* 18-20px */
  --font-size-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);        /* 20-24px */
  --font-size-2xl: clamp(1.5rem, 1.3rem + 1vw, 1.875rem);         /* 24-30px */
  --font-size-3xl: clamp(1.875rem, 1.6rem + 1.375vw, 2.25rem);    /* 30-36px */
  --font-size-4xl: clamp(2.25rem, 1.9rem + 1.75vw, 3rem);         /* 36-48px */
  --font-size-5xl: clamp(3rem, 2.5rem + 2.5vw, 4rem);             /* 48-64px */
  
  /* ============================================
     TYPOGRAPHY - Font Weights
     ============================================ */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-weight-black: 900;
  
  /* ============================================
     TYPOGRAPHY - Line Heights
     ============================================ */
  --line-height-tight: 1.2;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* ============================================
     SPACING SCALE
     Based on 4px base unit
     ============================================ */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-1-5: 0.375rem; /* 6px */
  --space-2: 0.5rem;    /* 8px */
  --space-2-5: 0.625rem; /* 10px */
  --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 */
  --space-32: 8rem;     /* 128px */
  
  /* ============================================
     BORDER RADIUS
     ============================================ */
  --radius-none: 0;
  --radius-sm: 0.5rem;   /* 8px */
  --radius-md: 0.75rem;  /* 12px */
  --radius-lg: 1.25rem;  /* 20px */
  --radius-xl: 1.5rem;   /* 24px */
  --radius-2xl: 2rem;    /* 32px */
  --radius-full: 9999px;
  
  /* ============================================
     SHADOWS
     Elevation system for depth hierarchy
     ============================================ */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
  --shadow-glow: 0 0 20px rgb(253 172 8 / 0.5);
  --shadow-glow-lg: 0 0 40px rgb(253 172 8 / 0.6);
  
  /* ============================================
     TRANSITIONS
     Consistent animation timings
     ============================================ */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* ============================================
     Z-INDEX SCALE
     Layering system for stacking context
     ============================================ */
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1100;
  --z-fixed: 1200;
  --z-modal-backdrop: 1300;
  --z-modal: 1400;
  --z-popover: 1500;
  --z-tooltip: 1600;
  
  /* ============================================
     BREAKPOINTS (for reference in JS)
     ============================================ */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
  
  /* ============================================
     CONTAINER MAX WIDTHS
     ============================================ */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
  
  /* ============================================
     ASPECT RATIOS
     ============================================ */
  --aspect-square: 1 / 1;
  --aspect-video: 16 / 9;
  --aspect-poster: 2 / 3;
  --aspect-wide: 21 / 9;
  
  /* ============================================
     BACKDROP BLUR
     ============================================ */
  --blur-sm: 4px;
  --blur-md: 8px;
  --blur-lg: 16px;
  --blur-xl: 24px;
}

/* ============================================
   DARK MODE OPTIMIZATIONS
   Near-black instead of pure black for comfort
   ============================================ */
:root {
  --bg-primary: var(--color-neutral-950);
  --bg-secondary: var(--color-neutral-900);
  --bg-tertiary: var(--color-neutral-800);
  --bg-elevated: rgba(255, 255, 255, 0.05);
  --bg-elevated-hover: rgba(255, 255, 255, 0.08);
  
  --text-primary: var(--color-neutral-50);
  --text-secondary: var(--color-neutral-300);
  --text-tertiary: var(--color-neutral-500);
  
  --border-primary: rgba(255, 255, 255, 0.1);
  --border-secondary: rgba(255, 255, 255, 0.05);
}

/* ============================================
   UTILITY: Reduced Motion Support
   Respect user preferences for accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0ms;
    --transition-normal: 0ms;
    --transition-slow: 0ms;
    --transition-bounce: 0ms;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}