:root{color-scheme:light;--ink:#1d2b43;--muted:#63718a;--line:#dbe3ee;--blue:#2455cb;--paper:#fff;--green:#15745a;--red:#a53639;font:16px/1.55 Geist,-apple-system,BlinkMacSystemFont,Arial,sans-serif;color:var(--ink);background:#edf3fb}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer;border:0;background:transparent;color:inherit}a{color:var(--blue);text-decoration:none}button:focus-visible,a:focus-visible,textarea:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:3px}button:disabled{opacity:.5;cursor:wait}header{height:68px;display:flex;align-items:center;gap:20px;padding:0 25px;border-bottom:1px solid #ffffff;background:linear-gradient(100deg,#ffffffde,#e2edffcf);backdrop-filter:blur(20px);font-size:14px}.brand{display:flex;gap:12px;align-items:center;font-size:23px;font-weight:600;color:var(--blue)}.brand span{font-size:14px;letter-spacing:1.8px;color:var(--ink)}.slash{color:#abb9cf}.muted,.crumb{color:var(--muted)}.topright{margin-left:auto;display:flex;gap:19px;align-items:center;font-size:12px;color:var(--muted)}.avatar{border:1px solid white;border-radius:50%;background:#d3e3fb;width:34px;height:34px;display:grid;place-items:center;font-size:12px;color:var(--ink)}.workspace{display:grid;grid-template-columns:222px minmax(0,1fr);min-height:calc(100vh - 68px)}.rail{padding:29px 18px;display:flex;flex-direction:column;border-right:1px solid var(--line);background:linear-gradient(180deg,#e8f0fc,#f2f6fb)}.projectmark{width:34px;height:34px;display:grid;place-items:center;background:#d6e3f8;border:1px solid #fff;font-size:18px;border-radius:7px}.project{font-weight:600;margin:12px 0 35px}.project span{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:2px}.railcaption{font-size:11px;letter-spacing:.8px;margin-bottom:18px;color:var(--muted)}nav 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5px}dialog>button{background:var(--blue);color:white;border-radius:5px;padding:10px 15px}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}@media(min-width:1600px){main{padding:35px 48px 0}.surface{grid-template-columns:minmax(0,1fr) 330px;min-height:730px}.paper{padding:40px 55px}}@media(max-width:1150px){.workspace{grid-template-columns:180px minmax(0,1fr)}main{padding:24px 18px 0}.surface{grid-template-columns:minmax(0,1fr) 250px}#guide{padding:22px 18px}.missionhead{align-items:start}h1{font-size:25px}.paper{padding:26px 24px}.crumb{display:none}}@media(max-width:900px){.workspace{display:block}.rail{padding:12px 18px;display:block;border-bottom:1px solid var(--line)}.projectmark,.project,.railcaption,.railbottom{display:none}nav{display:flex;overflow:auto}nav button{white-space:nowrap;width:auto;flex-shrink:0}main{padding:22px 16px 0}.surface{grid-template-columns:minmax(0,1fr) 240px}.topright 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