Use layered texture by combining soft rugs, varied textiles on furniture, and tactile finishes like wood grain or brushed metal accents to modernize while keeping warmth. Layer textures on walls with subtle wallpaper or molding details and mix materials like stone countertops with sleek cabinetry. This prevents modern design from feeling minimal or cold, instead creating depth, interest, and a homey vibe that celebrates the 80s home's unique character.