Create a premium editorial travel poster illustration of Santorini, Greece. Style: flat vector illustration, ultra clean minimalism, mid-century modern aesthetic, editorial travel poster style inspired by Scandinavian graphic design and vintage Mediterranean tourism prints, no photorealism, no textures, no noise, no gradients Composition: vertical 3:4 poster layout, foreground: peaceful cliffside terraces with whitewashed pathways, minimal stone steps, elegant bougainvillea plants, and calm reflective Aegean Sea views, midground: iconic white cubic houses with blue domes and clean geometric architecture cascading down the volcanic cliffs, include subtle silhouettes of visitors, café seating, and sailing boats integrated naturally into the scene, background: layered caldera cliffs with panoramic sea horizon and soft island silhouettes fading into the distance, add iconic landmarks subtly, including blue-domed churches, traditional windmills, and terraced cliffside villages inspired by Oia and Fira Architecture: simplified geometric Cycladic architecture, clean edges and balanced symmetry, flat color blocking, harmonious tones in white stone, cobalt blue, warm sand, soft turquoise, and deep navy Color palette: soft cohesive Mediterranean-inspired tones, bright white, pastel sky blue, muted turquoise, warm cream, dusty terracotta, sunlit beige, deep Aegean navy accents, bright yet restrained saturation Lighting: bright sunlit afternoon with soft shadows, fresh coastal island atmosphere, peaceful refined mood with subtle sea breeze ambiance Mood: calm, elegant, premium travel magazine aesthetic, slightly dreamy and culturally refined, quiet timeless Mediterranean atmosphere with sophisticated island charm Quality: ultra clean vector edges, perfect alignment and composition, high resolution, print-ready premium poster design.