/* ==========================================================================
   DESIGN TOKENS & SYSTEM VARIABLES - SHOP QUÀ TẶNG FREE FIRE
   ========================================================================== */

:root {
  /* Color Palette - Luxury Light Theme (Trắng Sang Trọng & Dễ Nhìn) */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.88);
  --bg-glass-heavy: rgba(255, 255, 255, 0.95);

  /* Accent Colors (Tối ưu độ tương phản trên nền sáng) */
  --ff-orange: #ea580c;
  --ff-orange-glow: rgba(234, 88, 12, 0.25);
  --ff-orange-light: #f97316;
  --ff-yellow: #d97706;
  --ff-yellow-glow: rgba(217, 119, 6, 0.25);
  --ff-cyan: #0284c7;
  --ff-cyan-glow: rgba(2, 132, 199, 0.25);
  --ff-purple: #7c3aed;
  --ff-purple-glow: rgba(124, 58, 237, 0.25);
  --ff-green: #16a34a;
  --ff-green-glow: rgba(22, 163, 74, 0.25);
  --ff-red: #dc2626;
  --ff-red-glow: rgba(220, 38, 38, 0.25);

  /* Gradients */
  --gradient-fire: linear-gradient(135deg, #ea580c 0%, #f97316 50%, #f59e0b 100%);
  --gradient-cyber: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  --gradient-vip: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
  --gradient-card: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  --gradient-hero: linear-gradient(180deg, #fff7ed 0%, #f8fafc 100%);
  --gradient-radial-fire: radial-gradient(circle at 50% 15%, rgba(234, 88, 12, 0.08) 0%, transparent 60%);

  /* Text Colors (Đậm nét, cực kỳ sắc sảo và dễ nhìn) */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-accent: #d97706;
  --text-cyan: #0284c7;
  --text-fire: #ea580c;

  /* Borders & Shadows */
  --border-subtle: #e2e8f0;
  --border-glass: #cbd5e1;
  --border-fire: rgba(234, 88, 12, 0.35);
  --border-cyan: rgba(2, 132, 199, 0.35);
  --border-gold: rgba(217, 119, 6, 0.35);

  --glow-fire: 0 8px 25px rgba(234, 88, 12, 0.18);
  --glow-fire-lg: 0 12px 35px rgba(234, 88, 12, 0.25);
  --glow-cyan: 0 8px 25px rgba(2, 132, 199, 0.18);
  --glow-box: 0 10px 30px -5px rgba(15, 23, 42, 0.08);
  --glow-card: 0 4px 20px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);

  /* Typography */
  --font-gaming: 'Chakra Petch', 'Orbitron', -apple-system, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-code: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.25rem;  /* 4px */
  --space-sm: 0.5rem;   /* 8px */
  --space-md: 1rem;     /* 16px */
  --space-lg: 1.5rem;   /* 24px */
  --space-xl: 2rem;     /* 32px */
  --space-2xl: 3rem;    /* 48px */
  --space-3xl: 4rem;    /* 64px */

  /* Border Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Z-Index Hierarchy */
  --z-base: 1;
  --z-sticky: 100;
  --z-ticker: 200;
  --z-header: 500;
  --z-modal: 1000;
  --z-toast: 999999;
}