Create ONE standalone premium website background, portrait 3:4, highest available native detail. Collection: Coastal address. Intended use: Mobile hero or tall editorial image. Scene and composition: PORTRAIT image. Tall whitewashed doorway opening onto pale blue sea, a low terrace and native coastal grass at bottom, generous soft white wall above. Style: Premium photorealistic coastal residential architecture photography. Whitewashed mineral plaster, pale natural stone, soft sea-glass water, sandy beige, weathered oak. Luminous marine atmosphere, gentle sea haze, restrained resort-like calm, realistic structural details and natural Mediterranean planting. Keep generous intentional negative space suited to this composition. Exquisite art direction, natural optics, very fine film grain, believable proportions and surfaces. This is an IMAGE ASSET, not a website screenshot. No words, numbers, lettering, logos, watermarks, UI, borders, collages or inset pictures. Do not add a title or any typography.