:where(*){margin:0}:where(*,*:before,*:after){box-sizing:border-box}body{display:flex;flex-direction:column;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background:var(--bg, #222);color:var(--fg, #fff);min-height:100dvh;min-height:100vh}header,footer{padding:1rem;background:var(--header-bg, #426);color:#fff}main{flex:1;margin-block-start:1rem}.tile{border-radius:.5rem;padding:1rem;background:var(--tile-bg, #444);color:#fff}.tile:has(button):not(:has(button:not(:disabled))){opacity:.5}.center{text-align:center}.flow>*+*{margin-block-start:var(--flow-space, 1em)}.wrapper{width:min(100% - 3rem,var(--container-max, 800px));margin-inline:auto}.grid{--min: 30ch;--gap: 1rem;display:grid;grid-gap:var(--gap);grid-template-columns:repeat(auto-fit,minmax(min(100%,var(--min)),1fr))}