Science Fiction Blue Green Gold Simple Beautiful Serene Innovation Futuristic Sustainability Sustainable Book Cover Ideas with Cityscape Movement Blueprints Engineering Light Trails Urban Skyline Global Perspective

A serene futuristic cityscape at dusk, with glowing sustainable infrastructure framed by abstract geometric designs representing engineering blueprints. The backdrop highlights shades of green, blue, and warm gold, symbolizing sustainability and innovation. The center features a translucent overlapping globe and an urban skyline subtly merging into each other, symbolizing the global perspective and holistic approach to urban planning. LED-style light trails run diagonally across the design, adding a sense of dynamic movement and creativity.

Modern sans-serif font with clean lines, such as Helvetica Neue or Raleway. The title is bold and prominent in white with a slight glow effect, while subtitles or additional text are minimal and use a thinner version of the same font for contrast.

The title is centered at the top third of the cover, dominating the space. Below the title, in smaller text, space is reserved for additional context or subtitles. The cityscape and globe are central design elements, taking up roughly two-thirds of the vertical cover space. The bottom features a minimalist gradient area for balance.