:root {
  /* Colors - Industrial Editorial */
  --color-bg: #0d0d0d;
  --color-surface: #1a1a1a;
  --color-surface-elevated: #262626;
  --color-border: #333333;
  --color-border-light: #404040;
  
  /* Text */
  --color-text: #e5e5e5;
  --color-text-muted: #a3a3a3;
  --color-text-subtle: #737373;
  
  /* Accent */
  --color-accent: #f59e0b;
  --color-accent-hover: #fbbf24;
  --color-accent-muted: #92400e;
  
  /* Status */
  --color-success: #22c55e;
  --color-error: #ef4444;
  
  /* Typography */
  --font-display: 'IBM Plex Mono', monospace;
  --font-body: 'IBM Plex Sans', sans-serif;
  
  /* Font Sizes - Fluid */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 1.875rem);
  --text-3xl: clamp(1.875rem, 1.6rem + 1.375vw, 2.25rem);
  --text-4xl: clamp(2.25rem, 1.9rem + 1.75vw, 3rem);
  --text-5xl: clamp(3rem, 2.4rem + 3vw, 4rem);
  
  /* Spacing - 8px base */
  --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;
  --space-24: 6rem;
  
  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --header-height: 72px;
  
  /* Border Radius */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* Light theme (optional - toggle available) */
[data-theme="light"] {
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-border: #dee2e6;
  --color-border-light: #e9ecef;
  
  --color-text: #212529;
  --color-text-muted: #495057;
  --color-text-subtle: #6c757d;
  
  --color-accent: #d97706;
  --color-accent-hover: #b45309;
  --color-accent-muted: #fef3c7;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.12);
}

/* Light mode specific overrides */
[data-theme="light"] .header {
  box-shadow: var(--shadow-md);
}

[data-theme="light"] .hero-word {
  color: var(--color-text);
}

[data-theme="light"] .hero-word.accent {
  color: var(--color-accent);
}