:root{--bg: #ffffff;--bg-soft: #f7f7f5;--bg-hover: #efefed;--fg: #1a1a19;--fg-2: #5e5d59;--fg-3: #94938f;--line: #e9e9e7;--line-strong: #d6d6d3;--accent: #2563eb;--accent-soft: #eaf0fe;--accent-fg: #ffffff;--amber: #c2700f;--amber-soft: #fdf1e1;--green: #18805b;--green-soft: #e3f4ec;--red: #d93b3b;--red-soft: #fdeaea;--violet: #7c4ddb;--violet-soft: #f0eafd;--drone: #f2a03d;--drone-led: #3ccf7a;--viz-bg: #fcfcfc;--viz-grid: #ededeb;--viz-ink: #0b0b0b;--viz-obstacle: #1c1c1c;--viz-visited: #e8edf6;--viz-visited-ink: #9aa9c4;--viz-terrain: #f3e6cf;--viz-cobs: #1c1c1c;--font-ui: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;--font-serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;--r-sm: 6px;--r-md: 10px;--shadow: 0 1px 2px rgba(15, 15, 15, .04), 0 4px 16px rgba(15, 15, 15, .05);color-scheme:light}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--bg: #191919;--bg-soft: #202020;--bg-hover: #2a2a2a;--fg: #ededec;--fg-2: #a8a7a3;--fg-3: #75746f;--line: #2c2c2b;--line-strong: #3a3a38;--accent: #5b8cff;--accent-soft: #1d2a45;--amber: #f0a64a;--amber-soft: #3a2a14;--green: #4cc38a;--green-soft: #15302a;--red: #ff6b6b;--red-soft: #3a1c1c;--violet: #a585ff;--violet-soft: #2a2140;--viz-bg: #121212;--viz-grid: #262626;--viz-ink: #f4f4f4;--viz-obstacle: #e6e6e6;--viz-visited: #1e2738;--viz-visited-ink: #5d6f92;--viz-terrain: #3a3020;--viz-cobs: #e6e6e6;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);color-scheme:dark}}:root[data-theme=dark]{--bg: #191919;--bg-soft: #202020;--bg-hover: #2a2a2a;--fg: #ededec;--fg-2: #a8a7a3;--fg-3: #75746f;--line: #2c2c2b;--line-strong: #3a3a38;--accent: #5b8cff;--accent-soft: #1d2a45;--amber: #f0a64a;--amber-soft: #3a2a14;--green: #4cc38a;--green-soft: #15302a;--red: #ff6b6b;--red-soft: #3a1c1c;--violet: #a585ff;--violet-soft: #2a2140;--viz-bg: #121212;--viz-grid: #262626;--viz-ink: #f4f4f4;--viz-obstacle: #e6e6e6;--viz-visited: #1e2738;--viz-visited-ink: #5d6f92;--viz-terrain: #3a3020;--viz-cobs: #e6e6e6;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25);color-scheme:dark}*{box-sizing:border-box}html,body{margin:0}body{background:var(--bg);color:var(--fg);font:15px/1.55 var(--font-ui);-webkit-font-smoothing:antialiased}a{color:inherit}img{max-width:100%}button,input,select{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}[hidden]{display:none!important}h1,h2,h3{text-wrap:balance;margin:0}p{margin:0}.math{font-family:var(--font-serif);font-style:italic;font-size:1.12em;letter-spacing:.01em;white-space:nowrap}.math sub{font-family:var(--font-ui);font-style:normal;font-size:.68em;margin-left:.04em;letter-spacing:0}.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.muted{color:var(--fg-2)}.faint{color:var(--fg-3)}.app{display:grid;grid-template-columns:248px 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