Preserve responsive media overrides when carrying inline geometry

[chubes4]

Problem

HTML-to-block conversion promotes source inline geometry such as min-height into generated carrier CSS with !important. This can defeat a preserved authored media-query override such as min-height:0, so responsive section heights regress after conversion even when the static artifact is correct.

Fisiostetic evidence at 1440px:

• Static artifact document height: 6091px.
• Materialized WordPress document height: 6976px.
• Preserved figma-node-* nodes match; excess height is concentrated in section carriers.
• StyleResolutionTrait::inlineGeometryClassName() emits non-layout geometry in the important tier, including min-height, while authored responsive rules remain non-important.

Owning contract

Inline declarations own the base cascade, but a source-authored responsive rule that supersedes that declaration at a matching viewport must continue to win after conversion. Geometry carriers need viewport-aware priority rather than unconditional dominance.

Acceptance

• Base inline min-height remains effective outside matching media queries.
• A preserved source media rule can override it inside its viewport.
• ID-selector and ordinary author-rule precedence remains preserved outside responsive overrides.
• Generated block markup remains parser-valid and Gutenberg-valid.
• Add a high-signal conversion fixture proving computed responsive geometry, not only stylesheet shape.
• Fisiostetic static and WordPress section heights converge at 1440px.

AI assistance

OpenAI GPT-5.6 Sol via OpenCode compared the static and materialized output, traced the geometry carrier cascade, and helped formulate the acceptance contract. Chris Huber remains responsible for the resulting change.

[chubes4]

Root-cause refinement: the general inline carrier policy is behaving correctly for actual style="..." declarations. The class-owned regression is introduced later by HtmlTransformer::applyIntrinsicVisualMediaHeight(), which re-promotes resolved Group height/min-height into a forced !important carrier after responsive support filtering already left those dimensions under stylesheet ownership. The repair skips that late promotion only when the dimension is class-owned and has a matching conditional variant; true inline dimensions retain normal inline priority.

Fresh Fisiostetic transform evidence reduces generated min-height:* !important occurrences from 110 in the prior compiled result to 16, and removes the 1521.361px and 779.806px section carriers that defeated min-height:0.

AI assistance: OpenAI GPT-5.6 Sol via OpenCode built the minimal reproducer, traced the late Group geometry promotion, ran the complete PHP transformer suite, and compared fresh Fisiostetic output. Chris Huber remains responsible for the change.