:is(.fundamental>div)>div{padding-inline:var(--full-width-padding-inline)}:is(:is(.fundamental>div)>div) header{padding-block:var(--density-normal)}:is(:is(.fundamental>div)>div) main{background-color:var(--color-surface-700);box-shadow:var(--shadow-400);padding:var(--density-large)}.fundamental .toggle{position:fixed;inset-block-end:1rem;inset-inline-end:1rem}