Create a Responsive Grid Layout

## Description
Design a **responsive grid layout** that can hold multiple components/cards.

### Requirements
- Grid adjusts columns based on screen size (1 column mobile, 2–3 tablet, 4+ desktop).
- Include spacing/gaps between items.
- HTML & CSS only.
- Keep class names semantic.

### File/Folder
- components/grid.html
- css/style.css

### Example/Screenshot
- Optional: Include screenshots for mobile, tablet, and desktop.