:root{--bg:#f7f6fb;--surface:#fff;--surface-2:#f0eef8;--text:#1c1830;--muted:#625c7a;--border:#e2def0;--brand:#5b3df5;--brand-strong:#4527d6;--brand-soft:#ece8ff;--accent:#ff6b4a;--success:#12996b;--success-soft:#dff6ec;--danger:#d33a4a;--danger-soft:#fde7ea;--warning:#b7791f;--warning-soft:#fdf3dc;--mark:#5b3df5;--mark-text:#fff;--called:#ff6b4a;--radius:14px;--radius-sm:9px;--shadow:0 1px 2px #1c18300f, 0 8px 24px #1c18300f;--font:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#12101c;--surface:#1b1829;--surface-2:#242036;--text:#f1eefb;--muted:#a39dbd;--border:#322d48;--brand:#8b74ff;--brand-strong:#a594ff;--brand-soft:#2a2447;--success-soft:#133328;--danger-soft:#3a1820;--warning-soft:#3a2e14;--mark:#7c63ff;--shadow:0 1px 2px #0000004d, 0 8px 24px #00000040;--lightningcss-light: 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p{margin:0}.article-cta{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin:0 0 1.4em;padding:18px 20px;display:flex}.article-cta p{flex:280px;margin:0;font-weight:600}.article-aside{flex-direction:column;gap:16px;display:flex;position:sticky;top:80px}.toc ol{margin:8px 0 0;padding-left:1.2em;font-size:.92rem}.toc li+li{margin-top:6px}.toc a{color:var(--muted)}.toc a:hover{color:var(--brand)}.aside-cta{flex-direction:column;align-items:flex-start;gap:8px;display:flex}.aside-cta p{margin:0}.sources{margin-top:2em}.sources h2{font-size:1.1rem}.pattern-row{flex-wrap:wrap;gap:18px;margin:0 0 1.2em;display:flex}.pattern{width:150px;margin:0}.pattern-grid{border:2px solid var(--brand);background:var(--surface);border-radius:10px;grid-template-columns:repeat(5,1fr);gap:3px;padding:6px;display:grid}.pattern-grid .c{aspect-ratio:1;background:var(--surface-2);border-radius:3px}.pattern-grid .c.on{background:var(--brand)}.pattern-grid .c.free{background:var(--accent)}.pattern figcaption{margin-top:6px;font-size:.9rem;line-height:1.35}.play-cta{border:1px dashed color-mix(in srgb, var(--brand) 45%, var(--border));border-radius:var(--radius);background:var(--surface);text-align:left;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin:14px 0;padding:14px 16px;display:flex}.play-cta>div{flex:240px}