Title: Dune — Architecture of Stillness
Exact creative prompt: Design a sophisticated desert architecture concept page, Dune, using sand, limestone, sage sky, generous whitespace and fine serif typography. Split the page into an editorial introduction and a large original CSS illustration of a cubic adobe residence with an arched doorway, recessed window, projecting roof, steps, desert hills and a sun. Include a functional day/evening light toggle. Add small architectural specifications and coordinate annotations. Make a complete responsive offline HTML5 file using only inline CSS and JavaScript.
Description: A quiet architectural presentation in which a handcrafted building illustration and carefully paced typography create an impression of warmth and stillness.
Major visual techniques: CSS architectural drawing; inset shadows; arched geometry; sun glow; muted earth palette; asymmetrical split layout; filtered light modes.
Intended interaction model: Toggle the residence between daylight and evening illumination.