:root{font-family:system-ui,sans-serif;color:#1B5C79;background:#FFFFFF;font-size:18px}body{margin:0}header{padding:20px;border-bottom:3px solid #009CC5;text-align:center}header img{width:210px;max-width:75vw;height:auto}main{max-width:600px;margin:24px auto;padding:24px;text-align:center}#code{font-size:clamp(70px,20vw,120px);font-weight:800}button{padding:16px 24px;background:#1B5C79;color:#FFFFFF;border:0;border-radius:12px;font:inherit;cursor:pointer}button:focus-visible{outline:4px solid #009CC5;outline-offset:3px}#connection,.muted{font-size:14px;color:#1B5C79}#note{font-size:16px}#ahead:not(:empty){background:#9ED0E6;border-radius:12px;padding:16px}h1{font-size:28px}