Liquid conventions

• Prefer {% liquid %} for multi-line logic and {%- -%} whitespace control to keep rendered HTML clean.
• Pass data into snippets explicitly with {% render %} (not the legacy {% include %}), which isolates scope.
• Use {{ image | image_url: width: 800 | image_tag }} for responsive, CDN-optimized images; never build image URLs by hand.
• Reach for filters (money, default, where, map) before custom loops. Avoid nested loops over large collections in the render path.