<% unless color_scheme != :dark %> :root { --text-color: #212529; --background-color: #ffffff; --link-color: #369; } <% end %> <% if color_scheme == :system %> @media (prefers-color-scheme: dark) { <% end %> <% if color_scheme == :system || color_scheme == :dark %> :root { --text-color: #fff; --background-color: #333; --link-color: rgb(133, 179, 225); } <% end %> <% if color_scheme == :system %> } <% end %>