CSS Grid, introduced in 2017, has revolutionized web design by providing a powerful tool for creating flexible and responsive layouts without relying heavily on media queries, which can be less effective with modern design systems. While media queries adjust layouts based on viewport size, CSS Grid allows components to adapt independently of their context. The article explores how math functions like min(), max(), and clamp() in CSS can enhance this flexibility, allowing designers to set dynamic size constraints and create more adaptable layouts. These functions can impose limits based on available space and preferred dimensions, facilitating the creation of responsive designs without complex calculations or media queries. The piece highlights specific techniques, such as auto-placement and the "Holy Albatross" method, to manage multi-column layouts and ensure elements fit any given context. Additionally, it touches on the use of these functions for responsive font sizes and notes that while most modern browsers support these CSS features, some, like Subgrid, are only available in Firefox. Overall, the article underscores a promising future for web layouts utilizing CSS Grid and math functions, offering designers greater control and precision in crafting user interfaces.