HTML Mode
HTML Mode exposes the canonical survey source. It is the source-of-truth layer for GUI round trips, Survey Link rendering, simulation, persistence, and export projection.
Canonical wording
Number questions use mode="int" or mode="float" for answer semantics. Visual numeric controls use display-style="input", display-style="slider", or display-style="dial". Media questions use type="video" or type="glb" for uploaded-asset gates and do not create normal response/export columns.
<survey-config show-name="none|name|index" /> controls Survey Link question badges. Optional <redirect> rules control terminal destinations and keep the built-in end page when omitted. Quota checkpoints can export trusted QUOTA_SHEET_{quota_name} JSON-array-text cell-label columns, use priority-count / priority-type balancing, and use screenout_status 901+ for active sources with no assignable cell. Supported grid layout attributes are option-columns and option-columns-min; grouped questions may use hide-group to keep grouping semantics while suppressing Survey Link group chrome; grouped single, multi, and ranking questions may also use group-display="accordion".
Use {{ ... }} Template Expressions for render-time text, redirect URLs, and dynamic non-identity attributes such as min, max, step, pre-text, option-columns, expanded, and hide-group.