:root{--ink:#12181f;--ink-soft:#55626e;--ink-faint:#7d8994;--ground:#f6f7f9;--surface:#ffffff;--surface-2:#eef1f3;--rule:#dde3e7;--accent:#0e6a70;--accent-soft:#e2f0f0;--warn:#8a5200;--warn-bg:#fbf1e2;--critical:#a92218;--critical-bg:#fbeceb;--ok:#1c6242;--ok-bg:#e6f2eb;--maxw:64rem}@media (prefers-color-scheme:dark){:root{--ink:#e7ecf0;--ink-soft:#9aa7b3;--ink-faint:#75828e;--ground:#0d1116;--surface:#151b22;--surface-2:#1c242c;--rule:#26303a;--accent:#4cc4c6;--accent-soft:#12312f;--warn:#e5a752;--warn-bg:#2c2216;--critical:#f0827a;--critical-bg:#2e1917;--ok:#6ec79a;--ok-bg:#14271e}}*{box-sizing:border-box}html{color-scheme:light dark}body{margin:0;background:var(--ground);color:var(--ink);font:16px/1.62 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-underline-offset:.18em}h1,h2,h3{line-height:1.2;letter-spacing:-.01em;margin:0 0 .5em;text-wrap:balance}h1{font-size:clamp(1.9rem,4.5vw,2.6rem)}h2{font-size:clamp(1.35rem,2.6vw,1.7rem);margin-top:2rem}h3{font-size:1.1rem;margin-top:1.4rem}li,p{max-width:68ch}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 1.25rem}main.wrap{padding-top:2rem;padding-bottom:4rem}.site-header{border-bottom:1px solid var(--rule);background:var(--surface);position:sticky;top:0;z-index:10}.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:3.5rem;gap:1rem}.brand{font-weight:700;font-size:1.15rem;color:var(--ink);text-decoration:none;letter-spacing:-.01em}.site-header nav{display:flex;gap:1.1rem;align-items:center;font-size:.92rem}.site-header nav a{color:var(--ink-soft);text-decoration:none}.site-header nav a:hover{color:var(--ink)}.site-header nav a.cta{background:var(--accent);color:#fff;padding:.45rem .9rem;border-radius:6px;font-weight:600}@media (max-width:640px){.site-header nav a:not(.cta){display:none}}.site-footer{border-top:1px solid var(--rule);background:var(--surface);padding:2.5rem 0;font-size:.9rem}.site-footer .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(12rem,1fr));gap:1.5rem}.site-footer .cols b{display:block;margin-bottom:.5rem}.site-footer .cols a{display:block;color:var(--ink-soft);text-decoration:none;margin:.2rem 0}.site-footer .fine{color:var(--ink-faint);font-size:.8rem;margin-top:2rem;max-width:none}.hero{padding:2rem 0 1rem}.hero .kicker{font-family:ui-monospace,monospace;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}.hero p.lede{font-size:1.15rem;color:var(--ink-soft)}.hero .actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.25rem}.btn{display:inline-block;padding:.7rem 1.1rem;border-radius:8px;font-weight:600;text-decoration:none;border:1px solid var(--rule);color:var(--ink);background:var(--surface)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem;margin:1.5rem 0}.card{background:var(--surface);border:1px solid var(--rule);border-radius:10px;padding:1.1rem 1.2rem}.card h3{margin-top:0;font-size:1.02rem}.card p{color:var(--ink-soft);font-size:.92rem;margin:0}.card a.more{display:inline-block;margin-top:.6rem;font-size:.9rem}.calc{display:grid;grid-template-columns:minmax(16rem,22rem) 1fr;gap:1.5rem;margin:1.5rem 0;align-items:start}@media (max-width:760px){.calc{grid-template-columns:1fr}}.calc form{background:var(--surface);border:1px solid var(--rule);border-radius:10px;padding:1.1rem;display:grid;gap:.8rem}.calc label{display:grid;gap:.3rem;font-size:.88rem;color:var(--ink-soft)}.calc input,.calc select{font:inherit;padding:.5rem .65rem;border:1px solid var(--rule);border-radius:6px;background:var(--ground);color:var(--ink)}.calc .result{background:var(--surface);border:1px solid var(--rule);border-radius:10px;padding:1.1rem 1.2rem}.calc .big{font-size:1.9rem;font-weight:700;letter-spacing:-.01em;font-variant-numeric:tabular-nums}.calc .muted{color:var(--ink-soft);font-size:.9rem}.calc table{width:100%;border-collapse:collapse;font-size:.88rem;margin-top:.8rem;font-variant-numeric:tabular-nums}.calc td,.calc th{text-align:left;padding:.4rem .5rem;border-bottom:1px solid var(--rule)}.calc th{color:var(--ink-faint);font-weight:500;font-size:.75rem;text-transform:uppercase;letter-spacing:.06em}.calc td.num,.calc th.num{text-align:right}.callout{border-left:3px solid var(--accent);background:var(--accent-soft);padding:.8rem 1rem;border-radius:0 6px 6px 0;margin:1rem 0;font-size:.92rem}.callout.warn{border-left-color:var(--warn);background:var(--warn-bg)}.scroll{overflow-x:auto}.article{max-width:70ch}.article h2{padding-top:.5rem}.article table{border-collapse:collapse;width:100%;font-size:.9rem;margin:1rem 0}.article td,.article th{border-bottom:1px solid var(--rule);padding:.45rem .6rem;text-align:left;vertical-align:top}.article th{background:var(--surface-2);font-weight:600}.article blockquote{border-left:3px solid var(--rule);margin:1rem 0;padding:.2rem 1rem;color:var(--ink-soft)}.article code{background:var(--surface-2);padding:.1em .35em;border-radius:3px;font-size:.9em}.faq details{border:1px solid var(--rule);border-radius:8px;padding:.5rem .9rem;margin:.5rem 0;background:var(--surface)}.faq summary{cursor:pointer;font-weight:600}.breadcrumb{font-size:.82rem;margin-bottom:1rem}.breadcrumb,.breadcrumb a{color:var(--ink-faint)}.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:1rem;margin:1.5rem 0}.pricing .card ul{padding-left:1.1rem;margin:.6rem 0;font-size:.92rem}.pricing .price{font-size:1.8rem;font-weight:700}.meta-line{font-size:.84rem;color:var(--ink-faint);margin:-.4rem 0 1rem}.meta-line b{color:var(--ink-soft);font-weight:600}.author-box{display:grid;grid-template-columns:3rem 1fr;gap:1rem;align-items:start;background:var(--surface);border:1px solid var(--rule);border-radius:10px;padding:1rem 1.1rem;margin-top:2rem}.author-box .author-avatar{width:3rem;height:3rem;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.2rem}.author-box p{font-size:.88rem;color:var(--ink-soft);margin-top:.25rem}.author-box .muted{color:var(--ink-faint);font-size:.88rem}.sources{margin-top:2rem}.sources h2{font-size:1.05rem;margin-top:0}.sources ul{font-size:.88rem}.disclaimer{margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--rule);font-size:.8rem;color:var(--ink-faint);max-width:none}.glossary{display:grid;gap:.9rem;margin:1.5rem 0;padding:0}.glossary>div{background:var(--surface);border:1px solid var(--rule);border-radius:8px;padding:.8rem 1rem}.glossary dt{font-weight:600}.glossary dt a{text-decoration:none}.glossary dd{margin:.25rem 0 0;color:var(--ink-soft);font-size:.92rem}.article p.definition{font-size:1.1rem;color:var(--ink);border-left:3px solid var(--accent);padding:.4rem .9rem;background:var(--accent-soft);border-radius:0 6px 6px 0}.decision-badges{display:flex;align-items:center;gap:.6rem;margin-bottom:.6rem}.decision-badges .pill{font-size:.82rem;font-weight:600;padding:.3rem .7rem;border-radius:999px}.decision-badges .pill.a{background:var(--accent-soft);color:var(--accent)}.decision-badges .pill.b{background:var(--surface-2);color:var(--ink-soft)}.decision-badges .vs{font-size:.75rem;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.06em}.newsletter{display:flex;flex-direction:column;gap:.5rem}.newsletter-row{display:flex;gap:.4rem}.newsletter-row input{flex:1;min-width:0;padding:.45rem .6rem;border:1px solid var(--rule);border-radius:6px;background:var(--ground);color:var(--ink);font-size:.85rem}.newsletter-row button{padding:.45rem .8rem;border:0;border-radius:6px;background:var(--accent);color:#fff;font-size:.85rem;font-weight:600;cursor:pointer;white-space:nowrap}.newsletter-row button:disabled{opacity:.6;cursor:default}.newsletter-consent{display:flex;gap:.4rem;align-items:flex-start;font-size:.74rem;color:var(--ink-faint)}.newsletter-consent input{margin-top:.18rem}.newsletter-ok{color:var(--ok);font-size:.85rem}.newsletter-error{color:var(--critical);font-size:.78rem;margin:0}