:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a2e;
  --neon-cyan: #00f0ff;
  --neon-magenta: #ff00aa;
  --neon-green: #39ff14;
  --text-primary: #e0e0e0;
  --text-muted: #888899;
  --border: #2a2a3e;

  /* Typography */
  --font-heading: 'Share Tech Mono', 'Fira Code', monospace;
  --font-body: 'Inter', 'IBM Plex Sans', sans-serif;

  --fs-xs: clamp(0.7rem, 0.8vw, 0.8rem);
  --fs-sm: clamp(0.8rem, 0.9vw, 0.9rem);
  --fs-base: clamp(0.95rem, 1vw, 1.05rem);
  --fs-md: clamp(1.1rem, 1.3vw, 1.3rem);
  --fs-lg: clamp(1.4rem, 2vw, 1.8rem);
  --fs-xl: clamp(1.8rem, 3vw, 2.5rem);
  --fs-2xl: clamp(2.2rem, 4vw, 3.5rem);
  --fs-hero: clamp(3rem, 7vw, 6rem);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 70px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;

  /* Shadows / Glows */
  --glow-cyan: 0 0 10px rgba(0, 240, 255, 0.3), 0 0 40px rgba(0, 240, 255, 0.1);
  --glow-magenta: 0 0 10px rgba(255, 0, 170, 0.3), 0 0 40px rgba(255, 0, 170, 0.1);
  --glow-cyan-strong: 0 0 10px rgba(0, 240, 255, 0.5), 0 0 60px rgba(0, 240, 255, 0.2);
}