:root {
  /* Color palette - Crimson Wasteland Rust */
  --color-crimson-dark: #3D1414;
  --color-crimson: #8B3A3A;
  --color-crimson-light: #A85555;
  --color-rust: #B87333;
  --color-rust-light: #D4915A;
  --color-sand: #E0C097;
  --color-sand-light: #F5E6D3;
  --color-charcoal: #1A1412;
  --color-charcoal-medium: #2D2520;
  --color-charcoal-light: #3F3530;
  --color-dust: #8B7E74;
  --color-dust-light: #B3A89E;
  
  /* Accent colors */
  --color-accent: #D4915A;
  --color-accent-bright: #E0C097;
  
  /* Surface levels (dark theme) */
  --surface-0: #0D0908;
  --surface-1: #1A1412;
  --surface-2: #2D2520;
  --surface-3: #3F3530;
  --surface-4: #524943;
  
  /* Text colors */
  --text-primary: #F5E6D3;
  --text-secondary: #E0C097;
  --text-tertiary: #B3A89E;
  --text-muted: #8B7E74;
  
  /* Typography */
  --font-display: 'Georgia', 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  
  /* Font sizes - fluid scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.35vw, 1.375rem);
  --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.75rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2.25rem);
  --text-3xl: clamp(2rem, 1.6rem + 2vw, 3.5rem);
  --text-4xl: clamp(2.5rem, 2rem + 2.5vw, 4.5rem);
  
  /* Spacing */
  --space-1: clamp(0.25rem, 0.2rem + 0.25vw, 0.375rem);
  --space-2: clamp(0.5rem, 0.45rem + 0.25vw, 0.75rem);
  --space-3: clamp(0.75rem, 0.65rem + 0.5vw, 1rem);
  --space-4: clamp(1rem, 0.9rem + 0.5vw, 1.5rem);
  --space-5: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --space-6: clamp(2rem, 1.7rem + 1.5vw, 3rem);
  --space-8: clamp(3rem, 2.5rem + 2.5vw, 5rem);
  --space-10: clamp(4rem, 3rem + 5vw, 8rem);
  
  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 999px;
  --radius-circle: 50%;
  
  /* 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);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --header-height-mobile: 48px;
  --header-height-desktop: 64px;
  --container-max-width: 1280px;
  --container-padding: clamp(1rem, 4vw, 2rem);
}