Layout Types
Looking across products and pages, common layout patterns emerge:
Common Base Layouts
4 columns
3 columns
2 columns
1 column (full width)
1 column (centered)

Less Common, Special Layouts
Narrow left – 2 columns
Quarter Left – 2 columns (25 / 75)
Third Left – 2 columns (30 / 70)
Quarter Right – 2 columns (75 / 25)

Base Rules & Sizing Math
Smallest Supported Size: 320px
Minimum Column Width: 280px
Base Rule: The minimum width of a column should be 280px. If it goes below, break the grid and reduce the number of columns.
Standard Gutters & Outer Padding: 20px

Formula: Minimum Width for a 4-Column Grid
(4 * 280px) + ((4 - 1) * 20px) + (20px * 2) = 1220px
The same rule applies to all grid variations and different numbers of columns

Layout Breaks Examples
From Breakpoints to Container Queries
Container Width ≠ Viewport Width
Container: The wrapper the grid lives in. The layout of the grid is defined by the size of the container, not the viewport.
Dynamic Reflow: When the container resizes and gets smaller, the grid inside breaks if it drops below a certain width.
Flexibility: Content (widgets, forms, tables) can be moved into a new context and will resize correctly automatically without needing context-specific breakpoint styles.
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