Style: HUD / Sci-Fi FUI. Type: General. Keywords: Futuristic, technical, wireframe, neon, data, transparency, iron man, sci-fi, interface. Primary Colors: Neon Cyan #00FFFF, Holographic Blue #0080FF, Alert Red #FF0000. Secondary Colors: Transparent Black, Grid Lines #333333. Effects & Animation: Glow effects, scanning animations, ticker text, blinking markers, fine line drawing. Best For: Sci-fi games, space tech, cybersecurity, movie props, immersive dashboards. Do Not Use For: Standard corporate, reading heavy content, accessible public services. Light Mode: ✓ Low. Dark Mode: ✓ Full. Performance: ⚠ Moderate (renders). Accessibility: ⚠ Poor (thin lines). Mobile-Friendly: ◐ Medium. Conversion-Focused: ✗ Low. Framework Compatibility: React 9/10, Canvas 10/10. Era/Origin: 2010s Sci-Fi. Complexity: High. AI Prompt Keywords: Design a futuristic HUD (Heads Up Display) or FUI. Use: thin lines (1px), neon cyan/blue on black, technical markers, decorative brackets, data visualization, monospaced tech fonts, glowing elements, transparency.. CSS/Technical: border: 1px solid rgba(0,255,255,0.5), color: #00FFFF, background: transparent or rgba(0,0,0,0.8), font-family: monospace, text-shadow: 0 0 5px cyan. Implementation Checklist: ☐ Fine lines 1px, ☐ Neon glow text/borders, ☐ Monospaced font, ☐ Dark/Transparent BG, ☐ Decorative tech markers, ☐ Holographic feel. Design System Variables: --hud-color: #00FFFF, --bg-color: rgba(0,10,20,0.9), --line-width: 1px, --glow: 0 0 5px, --font: monospace.