デ・ステイル (De Stijl) is an artistic movement that emerged in the Netherlands in the early 20th century, primarily associated with the painter Piet Mondrian and the architect Theo van Doesburg. It is characterized by a focus on abstraction and simplicity, using geometric forms and primary colors. The movement aimed to create a universal visual language that transcended individual expression. The principles of デ・ステイル influenced various fields, including architecture, design, and typography. Its emphasis on harmony and order sought to reflect the modern world, promoting a sense of balance through the use of straight lines and rectangular forms. This movement laid the groundwork for later developments in modern art and design.