:is(.beer,beer-css){footer,header{display:grid;align-content:center;border-radius:0;padding:0 1rem}:is(dialog,article)>:is(header,footer){padding-inline:0;inset:0}header{min-block-size:4rem}footer{min-block-size:5rem}:is(header,footer,menu>*).fixed{position:sticky;inset:0;z-index:11;background-color:inherit}header.fixed{inset:calc(var(--_padding, 0)*-1) 0 0 0;margin-block-start:calc(var(--_padding, 0)*-1)}footer.fixed{inset:0 0 calc(var(--_padding, 0)*-1) 0;margin-block-end:calc(var(--_padding, 0)*-1)}:is(header,footer).fixed.min{margin-inline:auto}dialog>:is(header,footer){background:none}dialog>:is(header,footer).fixed{background-color:inherit}:is(main,header,footer,section).responsive{max-inline-size:min(100vw,75rem);margin:0 auto}:is(main,header,footer,section).responsive.max{max-inline-size:none}:has(>main)>:is(header,footer).fixed{transform:none;box-sizing:content-box;position:sticky;inset:0;z-index:12}:has(>main)>header{padding-block-start:var(--top,0)}:has(>main)>footer{padding-block-end:var(--bottom,0)}nav.bottom~footer,nav.top~header{padding-block:0}nav.top~header.fixed{inset-block:calc(var(--top, 0) + 4.5rem) 0}nav.bottom~footer.fixed{inset-block:0 calc(var(--bottom, 0) + 4.5rem)}:is(nav,.row)>header{background-color:inherit}}