:root{font-family: 'Segoe UI',system-ui,sans-serif;color:#20332e;background:#f3f5f4;font-synthesis:none;--green:#193e36;--muted:#56675f;--line:#dce3de;--mint:#e3eee7;accent-color:var(--green);font-size:16px;color-scheme:light}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}a{color:var(--green);text-underline-offset:4px}button{border:1px solid var(--line);border-radius:6px;background:white;color:var(--green);padding:8px 16px;font-weight:600;transition:background .15s}button:hover{background:var(--mint)}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #5c927a;outline-offset:4px}::selection{background:#b9d8c9;color:#102e24}header{min-height:94px;display:flex;justify-content:space-between;align-items:center;padding:16px 4%;background:#fff;border-bottom:1px solid var(--line);gap:16px}.brand{font-weight:750;font-size:29px;letter-spacing:-1px;display:flex;align-items:center;text-decoration:none;gap:8px}.brand svg{width:34px;height:34px;fill:none;stroke:var(--green);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}.brand span{font-size:12px;font-weight:400;color:var(--muted);letter-spacing:0;margin-left:16px}header nav{display:flex;gap:8px}header nav button{font-size:13px;border-color:transparent;background:transparent}.shell{max-width:1510px;margin:auto;display:grid;grid-template-columns:245px 1fr;min-height:calc(100vh - 160px)}.rail{position:sticky;top:0;height:100vh;max-height:100vh;align-self:start;overflow-y:auto;padding:40px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column}.rail-heading{font-weight:650}.rail>p{font-size:12px;color:var(--muted);margin:8px 0 32px}.rail 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