:root{--ink:#14263b;--ink2:#4a5a6c;--mute:#8592a1;--line:#e3e1d9;--paper:#fbfaf6;--board:#9b6b3e;--board2:#7d5330;--blue:#1f6fd1;--blue2:#155bb0;--good:#1e9455;--bad:#d4432a;--warn:#e7a614;--font:ui-sans-serif,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--mono:ui-monospace,"SF Mono",Menlo,Consolas,"Courier New",monospace}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;height:100%;overflow:hidden;background:#1b232c;font-family:var(--font);color:var(--ink)}button{font:inherit;cursor:pointer}.hidden{display:none!important}#app{position:fixed;top:0;right:0;bottom:0;left:0;display:flex}#stage{position:relative;flex:1;min-width:0;min-height:0;overflow:hidden;background:#9aa3ab}#c{display:block;width:100%;height:100%;touch-action:none;cursor:grab}#c:active{cursor:grabbing}#hud{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;gap:14px;padding:14px 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