Which concepts did Jan Hus believe in?

Jan Hus believed in the authority of Scripture over church tradition and the necessity of reforming the Church to align with biblical teachings. He advocated for communion in both kinds (bread and wine) for all believers, emphasizing the importance of individual faith and moral integrity. Hus also challenged the corruption within the Church and promoted the idea that all Christians, not just the clergy, should have access to spiritual truth. His ideas laid the groundwork for the later Protestant Reformation.