Hi proelgi,
Which other template do you use?
Seblod lets you setup css for each content type and even for each field. Do not use Seblod – options – site instead when you create a content type click the orange arrow on the top right to open the permissions, access, object, etc options. You will see a Stylesheets select box – Choose Form views only so that you only have css on form views.
Another way is to setup each field. In content view click button #3 for markup – change it from default to none for each field that you don’t want css.
To remove scripts from template you could use the unset code on your template
<?php
$doc = JFactory::getDocument();
//remove your script colorbox
unset($doc->_scripts[JURI::root(true) .'/media/cck/scripts/jquery-colorbox/js/jquery.colorbox-min.js']);
?>
Or you can use a joomla extension JCC - JS CSS Controlhttp://extensions.joomla.org/extensions/extension/core-enhancements/performance/js-css-control
Be careful removing colorbox from admin as I think Seblod relies on it and you might loose some functionality.
Hope this helps
Anjo