:root{--display:"Young Serif", Georgia, serif;--sans:Figtree, system-ui, sans-serif;--mono:"DM Mono", ui-monospace, monospace;--bg:#f4f0e8;--surface:#fffdf8;--ink:#1c2230;--muted:#6b6f7a;--line:#e3ddd0;--brand:#c8431f;--brand-ink:#fff;--water:#dde8ec;--land:#dad6c8;--land-hover:#c6c1ad;--radius:14px;--shadow:0 8px 30px #1c22301a}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font:15px/1.5 var(--sans);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}h1,h2,h3{font-family:var(--display);letter-spacing:-.01em;margin:0 0 .4em;font-weight:400}h1{font-size:clamp(2.4rem,6vw,4.2rem);line-height:1.02}h3{font-size:1.05rem}code{background:#ebe6da;border-radius:5px;padding:1px 5px}.muted{color:var(--muted)}.error{color:#b3382c;margin:0}.notice{background:#fff4d6;border:1px solid #ecd48a;border-radius:10px;padding:8px 12px}.center{place-content:center;justify-items:center;gap:12px;height:100%;display:grid}.grow{flex:1}.topbar{padding:20px 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