:root{--font-color: white;--background-color: black}@media(prefers-color-scheme:light){:root{--font-color: black;--background-color: white}}body{margin:0;padding-inline:10vw;color:var(--font-color);background-color:var(--background-color);font-family:serif}main{max-width:768px;margin:auto}main p{font-size:x-large}main p.leading{font-size:xxx-large}