:root {
  /* Industrial Dark Navy */
  --color-primary-50: #E8EAF0;
  --color-primary-100: #C5C9D6;
  --color-primary-500: #1A1A2E;
  --color-primary-600: #141425;
  --color-primary-700: #0F0F1C;
  --color-primary-800: #0A0A14;
  --color-primary-900: #05050A;

  /* Steel Red accent */
  --color-accent-400: #E74C3C;
  --color-accent-500: #C0392B;
  --color-accent-600: #A93226;
  --color-accent-700: #922B21;

  /* Steel Gray */
  --color-steel-50: #F5F6F7;
  --color-steel-100: #E8EAED;
  --color-steel-200: #D1D5DB;
  --color-steel-300: #9CA3AF;
  --color-steel-400: #6B7280;
  --color-steel-500: #4B5563;
  --color-steel-600: #374151;
  --color-steel-700: #2D2D44;
  --color-steel-800: #1F2937;

  /* Warm Accent for luxury touches */
  --color-warm-500: #D4A574;
  --color-warm-600: #C4956A;

  --color-neutral-0: #FFFFFF;
  --color-neutral-50: #F9FAFB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-200: #E5E7EB;
  --color-neutral-300: #D1D5DB;
  --color-neutral-400: #9CA3AF;
  --color-neutral-500: #6B7280;
  --color-neutral-600: #4B5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1F2937;
  --color-neutral-900: #111827;

  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.75rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.875rem);
  --text-base: clamp(0.938rem, 0.875rem + 0.3125vw, 1rem);
  --text-lg: clamp(1.063rem, 0.975rem + 0.4375vw, 1.125rem);
  --text-xl: clamp(1.15rem, 1rem + 0.75vw, 1.25rem);
  --text-2xl: clamp(1.35rem, 1.1rem + 1.25vw, 1.5rem);
  --text-3xl: clamp(1.6rem, 1.25rem + 1.75vw, 1.875rem);
  --text-4xl: clamp(1.9rem, 1.4rem + 2.5vw, 2.25rem);
  --text-5xl: clamp(2.2rem, 1.5rem + 3.5vw, 3rem);
  --text-6xl: clamp(2.5rem, 1.5rem + 5vw, 3.75rem);

  --leading-tight: 1.15;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;
  --weight-black: 900;

  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.12), 0 2px 4px -2px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.12), 0 4px 6px -4px rgba(0,0,0,0.08);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.15), 0 8px 10px -6px rgba(0,0,0,0.1);

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --container-xl: 1280px;
  --container-padding: clamp(1rem, 3vw, 2rem);

  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 500;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}