fix: improve admonition text contrast on dark theme

Body text inside admonition boxes (warning, tip, info, danger) was
inheriting the muted grey color (#8b949e), making it hard to read
against the dark background. Now set to #c9d1d9 for clear readability.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: manuelcorpas

docs/stylesheets/clawbio.css

@@ -173,6 +173,17 @@
 [data-md-color-scheme="clawbio"] .md-typeset .admonition-title,
 [data-md-color-scheme="clawbio"] .md-typeset summary {
   background: rgba(33, 38, 45, 0.8);
+  color: #e6edf3;
+}
+
+/* Admonition body text: bright enough to read on dark background */
+[data-md-color-scheme="clawbio"] .md-typeset .admonition > p,
+[data-md-color-scheme="clawbio"] .md-typeset .admonition > ul,
+[data-md-color-scheme="clawbio"] .md-typeset .admonition > ol,
+[data-md-color-scheme="clawbio"] .md-typeset details > p,
+[data-md-color-scheme="clawbio"] .md-typeset details > ul,
+[data-md-color-scheme="clawbio"] .md-typeset details > ol {
+  color: #c9d1d9;
 }
 
 /* Warning admonitions in green accent */