layout-system

Responsive layouts adapt to different screen sizes using mobile-first design with Flexbox and CSS Grid. Start with mobile styling, then progressively enhance for larger viewports using breakpoints to shift from single-column to multi-column layouts as needed.

Accessible layouts maintain readable line lengths, adequate touch targets for mobile users, and semantic HTML structure across all breakpoints. Container queries and aspect-ratio handling ensure components scale proportionally while preserving usability.

Yes, Flexbox and CSS Grid complement each other: Grid handles overall page layout and card grids, while Flexbox manages alignment within components. Combining both techniques lets you build hero sections, sidebars, and card grids efficiently.

Container queries size components based on their container rather than viewport width, keeping components portable across contexts. Aspect-ratio handling maintains visual balance by controlling proportions—essential for images, videos, and embeds.

Scalable breakpoints eliminate manual media-query maintenance by defining consistent size thresholds once. Reusable component patterns—hero sections, card grids, sidebars—apply these breakpoints automatically across your entire design system.