*{box-sizing:border-box}html{scrollbar-gutter:stable}@supports not (scrollbar-gutter:stable){html{overflow-y:scroll}}body{color:#000;background:#9a9a9a url("data:image/svg+xml,%3Csvg width='4' height='4' xmlns='http://www.w3.org/2000/svg'%3E%3Crect width='2' height='2' fill='%23787878'/%3E%3Crect x='2' y='2' width='2' height='2' fill='%23787878'/%3E%3C/svg%3E");margin:0;padding:0 1rem 3rem;font-family:Times New Roman,Times,serif;font-size:16px;line-height:1.5;overflow-x:clip}.planet-decoration{pointer-events:none;z-index:0;opacity:.92;width:16rem;height:16rem;position:fixed;bottom:-8rem;left:-8rem}.planet-decoration__svg{filter:drop-shadow(2px 4px 6px #00000040);width:100%;height:100%;display:block}@media (width<=720px){.planet-decoration{display:none}}.shell{z-index:1;max-width:640px;margin:0 auto;position:relative}.site-header{gap:0;width:100%;margin:0;padding:0;display:flex;overflow:hidden}.site-header a{text-align:center;cursor:pointer;color:#000;background:#9a9a9a;border:2px outset #b8b8b8;border-bottom:none;flex:1;min-width:0;margin:0;padding:.25rem .65rem;font-family:inherit;font-size:.8rem;line-height:1;text-decoration:none}.site-header a.active{z-index:1;background:#fff;border-bottom:2px solid #fff;margin-bottom:-3px;position:relative}.wrap{background:#fff;border:3px ridge #b8b8b8;padding:1.5rem}.page-title{flex-wrap:wrap;justify-content:center;align-items:baseline;gap:.35rem .5rem;margin:0 0 .25rem;display:flex}.page-title h1{text-align:center;color:navy;margin:0;font-size:2.25rem;font-weight:700;text-decoration:underline}h1{text-align:center;color:navy;margin:0 0 .25rem;font-size:2.25rem;font-weight:700;text-decoration:underline}.byline{font-size:.85rem;font-style:italic;font-weight:400;text-decoration:none}a.byline:link{color:#00e}a.byline:visited{color:#551a8b}a.byline:hover{color:red}.tagline{text-align:center;color:#333;margin:0 0 1.5rem;font-style:italic}.page-outline{background:#f4f4f4;border:1px solid #ccc;margin:0 0 1rem;padding:.5rem .75rem;font-size:.85rem}.page-outline-label{color:#333;font-style:italic}.page-outline ul{margin:0;padding:0;list-style:none;display:inline}.page-outline li{margin:0;display:inline}.page-outline li+li:before{content:" · ";color:#666}.page-outline a{white-space:nowrap}.card{background:#ffc;border:2px inset #9a9a9a;margin-bottom:1.25rem;padding:.75rem 1rem 1rem}.card :target{scroll-margin-top:.5rem}.card-purpose{background:#d4e8fc;border:2px groove #69c}.purpose-diagram{text-align:center;-webkit-overflow-scrolling:touch;margin:0 0 .75rem;padding:0;overflow-x:auto}.purpose-diagram svg{width:100%;max-width:672px;height:auto;margin:0 auto;display:block}.purpose-diagram code{white-space:pre;text-align:left}.purpose-diagram code.purpose-diagram-wide{display:inline-block}.purpose-diagram code.purpose-diagram-narrow{display:none}@media (width<=520px){body{padding:0 .5rem 2rem}.wrap{padding:1rem}.purpose-diagram code.purpose-diagram-wide{display:none}.purpose-diagram code.purpose-diagram-narrow{display:inline-block}}h2{color:navy;text-transform:uppercase;letter-spacing:.05em;margin:0 0 .5rem;font-size:1.1rem;font-weight:700}h3{color:navy;margin:1rem 0 .35rem;font-size:.9rem;font-weight:500}.card h3:first-of-type{margin-top:.75rem}pre{color:#0f0;background:#000;border:2px inset #333;margin:0;padding:.75rem;font-size:.9rem;overflow-x:auto}code{font-family:Courier New,Courier,monospace;font-size:.95em}a:link{color:#00e}a:visited{color:#551a8b}a:hover{color:red}ul,ol{margin:0;padding-left:1.5rem}li{margin-bottom:.35rem}.note{color:#333;margin:.75rem 0 0;font-size:.9rem;font-style:italic}.cmd-variant{margin:.75rem 0 0;font-size:.9rem}.cmd-variant+.cmd-variant{border-top:1px solid #ddd;margin-top:.85rem;padding-top:.85rem}.cmd-variant dt{color:navy;margin:0 0 .25rem}.cmd-variant dd{margin:0 0 .35rem}.cmd-variant dd:last-child{margin-bottom:0}.cmd-variant dd code{background:#eee;border:1px solid #ccc;padding:.35rem .5rem;display:block;overflow-x:auto}.cmd-variant dd.example{color:#333;font-style:italic}.cmd-variant dd.example code{background:0 0;border:none;padding:0;display:inline}.go-top{text-align:center;margin:1.5rem 0 0;font-size:.9rem}.cmd-table{border-collapse:collapse;width:100%;margin:.5rem 0 0;font-size:.9rem}.cmd-table th,.cmd-table td{text-align:left;vertical-align:top;border:1px solid #ccc;padding:.35rem .5rem}.cmd-table th{color:navy;background:#e8e8e8;font-weight:700}.cmd-table td:first-child{width:42%}.cmd-table td code{white-space:normal;word-break:break-word}.card h2+.note{margin-top:0}@media (width<=520px){.cmd-table{-webkit-overflow-scrolling:touch;display:block;overflow-x:auto}}