:root {
  /* BPirex Color System */
  /* Primary Navy */
  --bpx-navy-primary: #08253A;
  --bpx-navy-deep: #123E5A;
  
  /* Circular Green */
  --bpx-green-primary: #2F9E44;
  --bpx-green-premium: #4DBA63;
  --bpx-green-deep: #126B3A;
  
  /* Grays & Neutrals */
  --bpx-graphite: #12171B;
  --bpx-gray-steel: #66727C;
  --bpx-gray-light: #E9EEF0;
  --bpx-white-warm: #F7F8F5;
  --bpx-white-pure: #FFFFFF;
  
  /* Accents */
  --bpx-accent-safety: #D7A928;
  
  /* Semantic Colors */
  --bpx-text-main: var(--bpx-graphite);
  --bpx-text-light: var(--bpx-white-warm);
  --bpx-text-muted: var(--bpx-gray-steel);
  
  --bpx-bg-main: var(--bpx-white-pure);
  --bpx-bg-dark: var(--bpx-navy-primary);
  --bpx-bg-surface: var(--bpx-gray-light);
  --bpx-bg-surface-dark: var(--bpx-navy-deep);
  
  --bpx-border-light: var(--bpx-gray-light);
  --bpx-border-dark: var(--bpx-navy-deep);
  
  --bpx-overlay-dark: rgba(8, 37, 58, 0.85);

  /* Typography */
  --font-heading: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-kr: 'Noto Sans KR', sans-serif;
  --font-tc: 'Noto Sans TC', sans-serif;

  /* Typography Scale */
  --text-xs: clamp(0.7rem, 0.8vw, 0.75rem);
  --text-sm: clamp(0.8rem, 0.9vw, 0.875rem);
  --text-base: clamp(0.938rem, 1vw, 1rem);
  --text-lg: clamp(1.05rem, 1.15vw, 1.125rem);
  --text-xl: clamp(1.2rem, 1.5vw, 1.375rem);
  --text-2xl: clamp(1.5rem, 2vw, 1.75rem);
  --text-3xl: clamp(1.8rem, 2.5vw, 2.25rem);
  --text-4xl: clamp(2.2rem, 3.5vw, 3rem);
  --text-5xl: clamp(2.8rem, 4.5vw, 4rem);
  --text-hero: clamp(2.5rem, 5vw, 4.5rem);

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  --space-section: clamp(4rem, 8vw, 8rem);

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

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.2);
  --shadow-glow-green: 0 0 20px rgba(47, 158, 68, 0.15);
  --shadow-glow-navy: 0 0 20px rgba(8, 37, 58, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-slower: 600ms ease;

  /* Z-index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-max: 1400px;

  /* Line Heights */
  --leading-tight: 1.2;
  --leading-snug: 1.35;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  /* Letter Spacing */
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-wider: 0.1em;
  --tracking-widest: 0.2em;
}