:root{--ink:#17211b;--muted:#68736c;--paper:#f5f1e8;--card:#fffdf8;--line:#ddd7ca;--green:#175f45;--green2:#2f8b68;--lime:#dff05a;--shadow:0 18px 60px rgba(36,47,40,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.shell{max-width:1120px;margin:auto;padding:24px 22px 64px}.topnav{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:70px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-size:20px;font-weight:900;letter-spacing:-.04em}.mark{display:grid;place-items:center;width:35px;height:35px;border-radius:11px;background:var(--green);color:var(--lime);font-size:20px}.navlinks{display:flex;align-items:center;gap:22px}.navlinks a{color:var(--muted);text-decoration:none;font-size:13px;font-weight:750}.navlinks .cta{background:var(--ink);color:white;padding:10px 15px;border-radius:999px}.crumbs{font-size:12px;color:var(--muted);margin-bottom:26px}.crumbs a{color:var(--green);text-decoration:none}.article-layout{display:grid;grid-template-columns:minmax(0,720px) 280px;gap:54px;align-items:start}.eyebrow{font-size:11px;letter-spacing:.15em;text-transform:uppercase;font-weight:850;color:var(--green2);margin-bottom:12px}h1{font-family:Georgia,serif;font-size:clamp(40px,6vw,66px);line-height:.98;letter-spacing:-.045em;margin:0}.dek{color:var(--muted);font-size:18px;line-height:1.65;margin:24px 0}.meta{display:flex;flex-wrap:wrap;gap:8px 16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:15px 0;margin:28px 0 38px;color:var(--muted);font-size:12px}.prose{font-size:16px;line-height:1.78}.prose h2{font-family:Georgia,serif;font-size:32px;line-height:1.1;letter-spacing:-.025em;margin:52px 0 16px}.prose h3{font-size:19px;margin:32px 0 10px}.prose p{margin:0 0 20px}.prose ul,.prose ol{padding-left:24px;margin:0 0 24px}.prose li{margin:8px 0}.callout{background:#e5f2eb;border-left:4px solid var(--green2);border-radius:0 16px 16px 0;padding:20px 22px;margin:28px 0}.callout strong{display:block;margin-bottom:6px}.example{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;margin:28px 0;box-shadow:var(--shadow)}.example h3{margin-top:0}.formula{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f0ede5;border-radius:10px;padding:12px 14px;font-size:14px;overflow:auto}.side{position:sticky;top:22px}.side-card{background:var(--ink);color:white;border-radius:22px;padding:24px;box-shadow:var(--shadow)}.side-card .eyebrow{color:var(--lime)}.side-card h2{font-family:Georgia,serif;font-size:28px;line-height:1.05;margin:0 0 12px}.side-card p{color:#c4cec8;font-size:13px;line-height:1.55}.side-card a{display:block;text-align:center;background:var(--lime);color:var(--ink);text-decoration:none;border-radius:12px;padding:12px;margin-top:18px;font-size:13px;font-weight:900}.related{margin-top:28px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px}.related strong{font-size:13px}.related a{display:block;color:var(--green);font-size:13px;line-height:1.4;margin-top:13px;text-decoration:none;font-weight:750}.disclaimer{color:var(--muted);font-size:12px;line-height:1.6;border-top:1px solid var(--line);margin-top:50px;padding-top:18px}footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:72px;padding-top:24px;color:var(--muted);font-size:12px}footer a{color:inherit}@media(max-width:860px){.article-layout{grid-template-columns:1fr}.side{position:static}.navlinks a:not(.cta){display:none}}@media(max-width:560px){.shell{padding:18px 15px 44px}.topnav{margin-bottom:46px}h1{font-size:42px}.dek{font-size:16px}.prose{font-size:15px}.prose h2{font-size:29px}footer{display:block}}