app/views/referrals/scoreboard.html.erb
<div class="card-panel">
The scoreboard below shows who has referred the most users to Notebook.ai. Rewards are coming soon!
</div>
<div class="card-panel">
<table>
<thead>
<tr>
<th class="right">Rank</th>
<th>User</th>
<th>Score</th>
</tr>
</thead>
<tbody>
<% @scoreboard_users.each_with_index do |user, i| %>
<%
trophy_color = case (1+i)
when 1; 'blue';
when 2; 'green';
when 3; 'red';
else; 'orange'
end
%>
<tr>
<td class="right"><%= 1 + i %></td>
<td>
<i class="fa fa-trophy <%= trophy_color %>-text"></i>
<%= link_to(user.username.presence || user.name.split('@').first, user) %>
</td>
<td><%= number_with_delimiter(user.referrals.count * 100) %></td>
</tr>
<% end %>
</tbody>
</table>
</div>