:root{--ink:#fafafa;--paper:#000}
html,body{margin:0;height:100%;background:var(--paper);color:var(--ink);overflow:hidden}
body{font:16px "Silkscreen",ui-monospace,monospace;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}
#stage{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;cursor:pointer}
header{position:fixed;left:0;right:0;top:0;display:flex;justify-content:space-between;
  padding:calc(16px + env(safe-area-inset-top)) 20px 16px;pointer-events:none;letter-spacing:.06em}
footer{position:fixed;left:0;right:0;bottom:0;text-align:center;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));font:11px ui-monospace,Menlo,monospace;opacity:.45}
footer a{color:inherit}