:root{--ink:#243345;--muted:#647386;--bg:#f3f5f8;--paper:#fff;--line:#dce2e9;--accent:#27695c;--nav:#243345}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 'Segoe UI',Arial,sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button{cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,p{margin-top:0}h1{font-size:28px;line-height:1.25;font-weight:650;letter-spacing:-.5px;margin-bottom:8px}h2{font-size:19px;line-height:1.4;font-weight:650;margin:0}h3{font-size:16px;line-height:1.5;font-weight:600;margin-bottom:8px}.shell{display:flex;min-height:100vh}.sidebar{width:252px;flex-shrink:0;background:var(--nav);color:#f2f5f8;padding:30px 18px 22px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:block;font-size:29px;line-height:1.2;font-weight:700;letter-spacing:-1.1px;padding:0 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