body{font:18px system-ui;color:#173b34;background:#f4f7f5;margin:0}main{max-width:28rem;margin:4vh auto;padding:1.2rem}label{display:block;margin-top:1rem}input,button{box-sizing:border-box;width:100%;padding:.8rem;font:inherit;margin-top:.4rem}button{background:#194d40;color:white;border:0;margin-top:1.5rem}input:focus,button:focus{outline:3px solid #d98c1f;outline-offset:2px}