:root{color:#202020;background:#fff;font-family:system-ui,sans-serif;line-height:1.6}body{max-width:48rem;margin:0 auto;padding:1rem}header,nav{flex-wrap:wrap;align-items:center;gap:1rem;display:flex}header{border-bottom:1px solid #ddd;justify-content:space-between;padding-block:.5rem 1rem}main{padding-block:2rem}a{color:#174ea6}button{font:inherit;cursor:pointer;padding:.3rem .8rem}button:disabled{cursor:wait}:focus-visible{outline-offset:3px;outline:2px solid #174ea6}.skip-link:not(:focus){clip-path:inset(50%);width:1px;height:1px;position:absolute;overflow:hidden}