.layout{--main: minmax(0, 1280px);--side-gap: minmax(2rem, 1fr);display:grid;grid-template-columns:[full-start] var(--side-gap) [main-start] var(--main) [main-end] var( --side-gap ) [full-end];min-height:100%;padding-block:4rem;flex:1}.layout>main{grid-column:main;display:grid;align-content:start}