:root {
  /* Colors */
  --color-bg: #0a192f;
  --color-bg-light: #112240;
  --color-bg-lighter: #1d3461;
  --color-text: #ccd6f6;
  --color-text-muted: #8892b0;
  --color-accent: #64ffda;
  --color-accent-tint: rgba(100, 255, 218, 0.1);
  --color-white: #e6f1ff;

  /* Typography */
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Fluid font sizes */
  --fs-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --fs-sm: clamp(0.8125rem, 0.75rem + 0.3vw, 0.875rem);
  --fs-base: clamp(0.875rem, 0.8rem + 0.4vw, 1rem);
  --fs-md: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --fs-lg: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --fs-xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
  --fs-2xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
  --fs-3xl: clamp(2.5rem, 2rem + 3vw, 4.5rem);

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

  /* Layout */
  --max-width: 1100px;
  --nav-height: 70px;

  /* 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: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Borders */
  --border-radius: 4px;
  --border-radius-lg: 8px;
}