:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color-scheme:light dark}body{margin:0;padding:1.5rem}.hello{max-width:28rem}.hello-form{display:flex;flex-direction:column;gap:.5rem}.hello-form input,.hello-form button{font:inherit;padding:.5rem .75rem;border-radius:6px}.hello-form input{border:1px solid #8888}.hello-form button{align-self:flex-start;border:none;background:#2563eb;color:#fff;cursor:pointer}.hello-saudacao{font-size:1.25rem;font-weight:600}