Well, before you go shopping for stuff that you are going to need, it is best if you take a moment to understand what is it that makes a bathroom to be modern.
The modern design uses basic geometry (simple edges, curves and angles and clean lines in furniture, architecture and sculpture.
This style grew from the idea to build for function, to do without traditional decoration, and to embrace industrial materials like chrome, glass and concrete, which new technologies have made available.
The driving design concept is honesty: keeping structure and building material in plain view. Sustainability is gaining importance as more designers are reclaiming materials for use in modern design, and building from renewable sources.