Recolor docs accent to EvalEval blue

_config.yml

@@ -1,7 +1,7 @@
 title: Every Eval Ever
 description: Documentation for the Every Eval Ever schema, CLI, and converters
 theme: just-the-docs
-color_scheme: light
+color_scheme: evaleval
 
 source: docs
 

docs/_sass/color_schemes/evaleval.scss

@@ -0,0 +1,11 @@
+// EvalEval color scheme — inherits the Just the Docs "light" scheme and
+// recolors the purple accents to EvalEval blue (#3b82f6), matching the
+// accent used on evalevalai.com and the Every Eval Ever project page.
+//
+// Imported after color_schemes/light, so these non-!default assignments
+// override the light scheme's $purple-000 / $purple-100 defaults.
+
+$blue-evaleval: #3b82f6;
+
+$link-color: $blue-evaleval;
+$btn-primary-color: $blue-evaleval;