:root {
  /* Primary Colors - Gold/Black Premium Casino Theme */
  --color-primary: #D4AF37;
  --color-primary-dark: #B8942E;
  --color-primary-light: #F0D864;
  --color-primary-rgb: 212, 175, 55;

  /* Secondary Colors */
  --color-secondary: #1A1A2E;
  --color-secondary-light: #252542;
  --color-secondary-dark: #0F0F1A;

  /* Accent Colors */
  --color-accent: #E94560;
  --color-accent-light: #FF6B6B;
  --color-success: #00D26A;
  --color-warning: #FFB800;
  --color-info: #00B4D8;

  /* Background Colors */
  --color-bg: #0F0F1A;
  --color-bg-light: #1A1A2E;
  --color-bg-card: #252542;
  --color-bg-elevated: #2D2D4A;

  /* Text Colors */
  --color-text: #FFFFFF;
  --color-text-muted: #A0A0B0;
  --color-text-light: #E0E0E0;
  --color-text-dark: #1A1A2E;

  /* Border Colors */
  --color-border: rgba(212, 175, 55, 0.2);
  --color-border-light: rgba(255, 255, 255, 0.1);

  /* Typography - System fonts with Japanese support */
  --font-main: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", -apple-system, BlinkMacSystemFont, sans-serif;

  /* Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.4vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-2xl: clamp(2rem, 1.5rem + 2vw, 2.5rem);
  --text-3xl: clamp(2.5rem, 2rem + 2.5vw, 3.5rem);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(212, 175, 55, 0.3);
  --shadow-glow-strong: 0 0 30px rgba(212, 175, 55, 0.5);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-index layers */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;

  /* Container widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;
}