Pad standalone type chips, keep compound types flush

CHANGES

@@ -18,6 +18,16 @@ $ uv add gp-sphinx --prerelease allow
 
 <!-- To maintainers and contributors: Please add notes for the forthcoming version below -->
 
+### Fixes
+
+#### Type chips in parameter lists regain their padding
+
+Standalone type annotations in autodoc parameter and return lists — a
+plain `str`, a `pathlib.Path`, the members of a union — rendered cramped
+against the edge of their chip background. They now get their horizontal
+breathing room back, while compound expressions such as `list[str]` and
+`dict[str, Any]` still render flush at their brackets. (#54)
+
 ## gp-sphinx 0.0.1a29 (2026-06-07)
 
 ### What's new

packages/sphinx-autodoc-typehints-gp/src/sphinx_autodoc_typehints_gp/_static/css/typehints_gp.css

@@ -47,15 +47,25 @@
    * blocks the compounding while still scaling with the root clamp
    * ramp on wide viewports.
    *
-   * `padding-inline: 0` cancels Furo's `padding: 0.1em 0.2em`
-   * horizontal component so the chip background sits flush against
-   * the bracket characters around it.  Without this, generic types
-   * read with visible whitespace inside the brackets — `list[ str ]`
-   * instead of `list[str]` — because the brackets and commas live
-   * outside the chip and have no padding of their own.  Vertical
-   * `0.1em` padding stays so the chip retains visible block height. */
+   * Keep Furo's `0.2em` horizontal padding so a standalone type chip
+   * (`str`, `pathlib.Path`) reads as a chip with breathing room rather
+   * than text crammed against its background edge.  The two overrides
+   * below cancel that padding only where a chip abuts `.p` punctuation
+   * (brackets, inner commas, pipes), so compound expressions still
+   * render flush — `list[str]`, not `list[ str ]` — because the
+   * brackets live outside the chip and have no padding of their own.
+   * Linked chips wrap the `<code>` in `<a>`, so the punctuation is the
+   * anchor's sibling; match both the bare and anchored forms. */
   .field-list code.literal {
     font-size: 0.8125rem;
-    padding-inline: 0;
+    padding-inline: 0.2em;
+  }
+  .field-list code.literal:has(+ .p),
+  .field-list a.reference:has(+ .p) > code.literal {
+    padding-inline-end: 0;
+  }
+  .field-list .p + code.literal,
+  .field-list .p + a.reference > code.literal {
+    padding-inline-start: 0;
   }
 }