*,:before,:after{box-sizing:border-box}html{font-family:system-ui,sans-serif;line-height:1.5}body{color:#111;background:#fff;min-height:100vh;margin:0}main{max-width:40rem;padding:1.25rem}@media (min-width:48rem){main{padding:2rem}}a:focus-visible{outline-offset:2px;outline:2px solid}