:root{--base:#08151d;--panel:rgba(9,25,35,.94);--border:rgba(167,202,210,.17);--muted:#718c98;--text:#e7f4f6;--cyan:#66e4d9;--amber:#f0a762;--left:320px;--right:257px}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden;font-family:'DM Sans',Inter,system-ui,sans-serif;color:var(--text);background:var(--base)}button,input,select{font:inherit}button{cursor:pointer}#viewport{position:absolute;inset:0;background:linear-gradient(145deg,#516b79,#29434c);overflow:hidden}#viewport canvas{display:block;width:100%;height:100%;outline:0}.topbar,.sidebar,.telemetry,.control-panel,.inspector,.help{position:absolute;z-index:6;backdrop-filter:blur(17px)}.topbar{left:0;right:0;top:0;height:74px;border-bottom:1px solid var(--border);background:rgba(7,21,30,.96);display:flex;align-items:center;padding:0 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