Leave the dashboard stylesheet out of the error email

CHANGELOG.md

@@ -1,5 +1,7 @@
 ## [Unreleased]
 
+- Leave the dashboard stylesheet out of the error email ([@namolnad](https://github.com/fractaledmind/solid_errors/pull/110))
+
 ## [0.8.0] - 2026-10-13
 
 - Add `enabled` to turn off error tracking in an environment, such as test ([@kulturbande](https://github.com/fractaledmind/solid_errors/pull/96))

app/views/solid_errors/error_mailer/error_occurred.html.erb

@@ -1,7 +1,6 @@
 <html>
 <head>
   <title>Solid Errors | <%= @error.severity_emoji %> <%= @error.exception_class %></title>
-  <%= render "layouts/solid_errors/style" %>
   <style>
     body {
       padding: 20px;

test/mailers/solid_errors/error_mailer_test.rb

@@ -22,6 +22,16 @@ def deliver!(_mail)
     assert_includes email.html_part.body.to_s, "oof"
   end
 
+  # The email styles itself inline. The dashboard's Tailwind build is tens of kilobytes
+  # it never uses, and Gmail clips a message past about a hundred.
+  test "the error email leaves out the dashboard stylesheet" do
+    report_raised_error("oof")
+
+    email = SolidErrors::ErrorMailer.error_occurred(SolidErrors::Occurrence.last)
+
+    refute_includes email.html_part.body.to_s, "tailwindcss"
+  end
+
   test "the error email links to the occurrence when the app has a mailer host" do
     report_raised_error("oof")
     occurrence = SolidErrors::Occurrence.last