.elementor-1989 .elementor-element.elementor-element-aacb470{--display:flex;--flex-direction:row;--container-widget-width:calc( ( 1 - var( --container-widget-flex-grow ) ) * 100% );--container-widget-height:100%;--container-widget-flex-grow:1;--container-widget-align-self:stretch;--flex-wrap-mobile:wrap;--justify-content:center;--align-items:center}:root{--ink:#0A0E1A;--ink-soft:#141A2C;--paper:#FFFFFF;--page:#F3F4F8;--line:#E4E5EE;--line-strong:#CDD0E0;--text:#10131F;--text-muted:#5B6072;--text-on-dark:#E9EAF4;--text-on-dark-muted:#9498B0;--accent:#6E56F8;--accent-dark:#4C39C4;--accent-tint:#EFECFF;--cyan:#22D3EE;--font-display:'Space Grotesk', sans-serif;--font-body:'Inter', sans-serif;--font-mono:'JetBrains Mono', monospace;--radius:10px}*{box-sizing:border-box}html{scroll-behavior:smooth}@media 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a{color:var(--text-on-dark-muted);text-decoration:none}.crumbs a:hover{color:var(--text-on-dark)}.hero{background:linear-gradient(180deg,var(--ink) 0%,var(--ink-soft) 100%);padding:56px 32px 72px}.hero-inner{max-width:760px;margin:0 auto}.eyebrow{font-family:var(--font-mono);font-size:13px;letter-spacing:.02em;color:var(--cyan);margin:0 0 16px}.hero h1{font-family:var(--font-display);font-weight:700;font-size:40px;line-height:1.15;color:var(--text-on-dark);margin:0 0 18px}.hero-sub{font-size:17px;color:var(--text-on-dark-muted);max-width:560px;margin:0 0 28px}.hero-meta{display:flex;flex-wrap:wrap;gap:10px}.meta-chip{font-size:13px;color:var(--text-on-dark);background:rgb(255 255 255 / .06);border:1px solid rgb(255 255 255 / .12);border-radius:999px;padding:7px 14px;display:inline-flex;gap:6px;align-items:center;text-decoration:none}.meta-chip i{font-style:normal;color:var(--text-on-dark-muted)}.meta-chip-link:hover{border-color:var(--accent)}.layout{max-width:1120px;margin:-36px auto 0;padding:0 32px 80px;display:grid;grid-template-columns:240px 1fr;gap:40px;align-items:start}.toc{position:sticky;top:24px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.toc-label{font-family:var(--font-mono);font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin:0 0 12px}.toc ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.toc a{display:flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--text-muted);font-size:13.5px;padding:7px 8px;border-radius:6px}.toc a:hover{background:var(--page);color:var(--text)}.toc a.active{background:var(--accent-tint);color:var(--accent-dark);font-weight:500}.toc-num{font-family:var(--font-mono);font-size:11px;color:var(--text-muted);min-width:18px}.toc a.active .toc-num{color:var(--accent-dark)}.content{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:48px}.intro{font-size:17px;color:var(--text-muted);padding-bottom:28px;margin:0 0 32px;border-bottom:1px solid var(--line)}.content section{padding:28px 0;border-bottom:1px solid var(--line);scroll-margin-top:24px}.content section:last-of-type{border-bottom:none}.sec-head{display:flex;align-items:center;gap:14px;margin:0 0 14px}.sec-num{font-family:var(--font-mono);font-size:13px;color:var(--accent-dark);background:var(--accent-tint);border-radius:6px;padding:4px 9px;flex-shrink:0}.content h2{font-family:var(--font-display);font-weight:600;font-size:21px;margin:0;color:var(--text)}.content p{margin:0 0 14px;color:var(--text)}.content p:last-child{margin-bottom:0}.content ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:8px}.content li{color:var(--text)}.updated-note{font-family:var(--font-mono);font-size:13px;color:var(--text-muted)}.back-link{margin-top:32px;padding-top:28px;border-top:1px solid var(--line)}.back-link a{font-family:var(--font-display);font-weight:500;font-size:15px;text-decoration:none;color:var(--accent-dark)}.back-link a:hover{color:var(--accent)}.to-top{position:fixed;bottom:28px;right:28px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line-strong);background:var(--paper);color:var(--text);font-size:18px;cursor:pointer;opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity 0.2s ease,transform 0.2s ease,border-color 0.2s ease}.to-top.visible{opacity:1;transform:translateY(0);pointer-events:auto}.to-top:hover{border-color:var(--accent);color:var(--accent-dark)}.site-footer{background:var(--ink);padding:40px 32px}.footer-inner{max-width:1120px;margin:0 auto}.footer-text{font-size:14px;color:var(--text-on-dark-muted);max-width:480px;margin:14px 0 20px}.footer-links{display:flex;flex-wrap:wrap;gap:20px}.footer-links a{font-size:13px;color:var(--text-on-dark-muted);text-decoration:none}.footer-links a:hover{color:var(--text-on-dark)}@media 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