section{padding-block:3rem}section:nth-child(2){background-color:var(--background-4);color:var(--warm-gray__dark)}section:nth-child(3){background-color:var(--background-2);color:var(--white)}section h2{margin-inline:auto;max-width:30ch;text-align:center}.accordion-item summary{font-size:var(--h4-size)}#course-intro ul{display:flex;flex-direction:column;margin-inline:auto;max-width:55ch}#course-topics{display:flex;flex-direction:column;margin-block:2rem}#about-kevin .wrapper{grid-template-columns:1fr}#about-kevin p{max-width:85ch}@media screen and (min-width:36rem){#about-kevin .wrapper{grid-template-columns:200px 1fr}}@media screen and (min-width:48rem){#course-topics{column-gap:2rem;display:grid;grid-auto-flow:column;grid-template-columns:1fr 1fr;grid-template-rows:repeat(6,auto)}#video .wrapper{--min-column-size:420px}}@media screen and (min-width:64rem){#course-topics{column-gap:4rem}}