:focus-visible{outline:3px solid #2563eb;outline-offset:4px}nav{line-height:2}input,button{font:inherit;padding:.6rem}main p{line-height:1.8}#combination-result{overflow-wrap:anywhere}.foundation-links{margin:2rem 0;padding:1.5rem;border:1px solid #d1d5db;border-radius:12px}.foundation-links a{display:inline-block;margin:.3rem .7rem .3rem 0}