CSS Grid Layout Generator

I need a CSS Grid layout for the following design.

**Layout Description:**
[Describe the layout or provide ASCII art]

**Grid Requirements:**
- Columns: [number and sizing]
- Rows: [fixed/auto/specific heights]
- Gaps: [spacing needed]

**Responsive Behavior:**
- Desktop: [describe layout]
- Tablet: [describe changes]
- Mobile: [describe changes]

**Content Types:**
[Describe what goes in each grid area]

**Browser Support:**
- IE11 needed: [yes/no]
- Minimum browsers: [list them]

Please provide:
1. Complete CSS Grid code
2. HTML structure
3. Responsive variations
4. Fallback for older browsers if needed
5. Named grid areas for clarity
6. Alignment and spacing utilities
7. Visual diagram of the grid