:root{--ink: #2c3a4a;--ink-soft: #5b6b7c;--paper: rgba(255, 252, 247, .86);--accent: #f0a35e;--accent2: #6cc3d5;--line: rgba(44, 58, 74, .12);font-family:Avenir Next,Segoe UI,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;background:#dfe9f3;color:var(--ink)}canvas#scene{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:block;touch-action:none}.hidden{display:none!important}kbd{display:inline-block;padding:1px 6px;margin:0 2px;border-radius:5px;background:#fff;border:1px solid var(--line);box-shadow:0 1px 0 var(--line);font-size:.8em;font-family:inherit;color:var(--ink)}#intro{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;z-index:20;background:radial-gradient(ellipse at 50% 30%,#ffffff73,#dfe9f3b3 70%);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:opacity .8s 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