"Visualize yourself as an interior designer tasked with crafting an extraordinary bathroom for a magnificent mansion. Your challenge is to create a space that epitomizes luxury, relaxation, and indulgence. Describe the envisioned bathroom, featuring opulent materials such as marble, granite, and fine wood, meticulously selected to evoke a sense of grandeur and sophistication. Envision a spacious layout with a centerpiece bathtub that invites soaking in style, surrounded by custom-designed vanities, elegant fixtures, and state-of-the-art technology for ultimate comfort and convenience. Consider incorporating lavish amenities such as a steam shower, heated floors, and integrated sound systems to elevate the bathing experience to new heights of opulence. Your design should not only showcase impeccable craftsmanship and attention to detail but also provide a sanctuary where residents can unwind and rejuvenate in the lap of luxury."