:root{font-family:system-ui,sans-serif;color:#142d36;background:#f5f8f9}body{max-width:860px;margin:auto;padding:20px}main,nav{margin:20px 0}.test-banner{border:2px solid #9b5700;background:#fff3d4;padding:16px;border-radius:8px}.test-banner strong{letter-spacing:.06em}.test-banner p{margin-bottom:0}button,input,select{font:inherit;margin:6px;padding:8px;max-width:100%;box-sizing:border-box}label{display:block}button{cursor:pointer}a{color:#075c82}pre{white-space:pre-wrap;overflow-wrap:anywhere}form,section{margin:20px 0}