:root{--canvas: #f6f7f5;--surface: #fff;--sunken: #edefed;--ink: #121614;--ink-2: #5b5f5c;--ink-3: #6a6d6b;--line: rgba(18, 22, 20, .11);--line-2: rgba(18, 22, 20, .22);--line-3: rgba(18, 22, 20, .42);--accent: #0c6b4f;--accent-down: #0a5a43;--on-accent: #fff;--ring: var(--accent);--paper: var(--canvas);--ink-60: var(--ink-2);--ink-40: var(--ink-3);--line-strong: var(--line-2);--ease: cubic-bezier(.22, 1, .36, 1);--pad-x: 64px;--container: calc(1312px + 2 * var(--pad-x));--top-h: 76px}@media(max-width:1279px){:root{--pad-x: 40px}}@media(max-width:760px){:root{--pad-x: 20px;--top-h: 60px}}@media(min-width:761px)and (max-height:860px){:root{--top-h: 64px}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-sans);font-size:17px;line-height:1.68;-webkit-font-smoothing:antialiased}body{min-height:100vh;min-height:100svh;display:flex;flex-direction:column}body>header,body>main{width:100%}body>main{flex:1 0 auto}.mono{font-variant-numeric:tabular-nums}a{color:var(--ink);text-decoration-color:var(--line-3);text-underline-offset:3px;transition:text-decoration-color 90ms var(--ease)}@media(hover:hover)and (pointer:fine){a:hover{text-decoration-color:var(--ink)}}a:focus-visible,summary:focus-visible{outline:2px solid var(--ring);outline-offset:3px;border-radius:4px}.nav{position:relative;display:flex;align-items:center;gap:20px;max-width:var(--container);margin:0 auto;height:var(--top-h);padding:0 var(--pad-x);font-size:16px;line-height:1.6;letter-spacing:-.011em}.nav:after{content:"";position:absolute;left:var(--pad-x);right:var(--pad-x);bottom:0;height:1px;background:var(--line)}.wordmark{display:inline-flex;align-items:center;gap:12px;flex:none;white-space:nowrap;font-size:16px;font-weight:600;letter-spacing:-.02em;color:var(--ink);text-decoration:none}.wordmark svg{width:19px;height:19px;color:inherit;flex:none}.wordmark em{font-style:normal;color:var(--ink-2)}.nav-sp{flex:1}.nav-link{font-size:14px;color:var(--ink-60);text-decoration:none;margin-right:16px;transition:color .18s var(--ease)}@media(hover:hover)and (pointer:fine){.nav-link:hover{color:var(--ink)}}.nav .btn{justify-content:center;text-align:center;min-height:44px;padding:8px 18px;font-size:16px}@media(max-width:760px){.nav{gap:8px}.nav .btn{padding:8px 14px}}@media(max-width:429px){.nav-link{display:none}}@media(pointer:coarse)and (min-width:430px){.nav-link{display:inline-flex;align-items:center;min-height:44px}}@media(max-width:359px){.nav{gap:4px}.wordmark{font-size:14px;gap:8px}.nav .btn{font-size:14px;padding:8px 10px}}.btn{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:9px 16px;border-radius:8px;font-size:14px;font-weight:500;text-decoration:none;border:1px solid var(--line-2);color:var(--ink);background:transparent;-webkit-tap-highlight-color:transparent;transition:background-color 90ms var(--ease),border-color 90ms var(--ease),transform 90ms var(--ease)}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}@media(hover:hover)and (pointer:fine){.btn:hover{border-color:var(--line-3)}.btn-primary:hover{background:var(--accent-down);border-color:var(--accent-down)}}.btn:active{transform:scale(.98)}.btn-primary:active{background:var(--accent-down);border-color:var(--accent-down)}.btn:focus-visible,.nav-link:focus-visible,.wordmark:focus-visible{outline:2px solid var(--ring);outline-offset:3px;border-radius:8px}main{max-width:var(--container);margin:0 auto;padding:clamp(24px,4vw,46px) var(--pad-x) clamp(64px,9vw,104px)}.nb{white-space:nowrap}.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:14px;color:var(--ink-40);margin-bottom:26px}.crumbs a{color:var(--ink-40);text-decoration:none}.crumbs a:hover{color:var(--ink)}@media(pointer:coarse){.crumbs a{padding-block:11px;margin-block:-11px}}.read-wrap{max-width:680px}h1{font-size:clamp(28px,4vw,44px);line-height:1.13;letter-spacing:-.028em;font-weight:400;margin:0 0 16px}.lede{font-size:clamp(17px,1.5vw,19px);line-height:1.6;color:var(--ink-60);margin:0 0 22px}.byline{display:flex;flex-wrap:wrap;gap:6px 16px;align-items:center;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:13px;color:var(--ink-40);margin-bottom:34px}.byline b{color:var(--ink-60);font-weight:500}article h2{font-size:clamp(20px,2.2vw,26px);line-height:1.25;letter-spacing:-.018em;font-weight:500;margin:44px 0 12px;padding-top:18px;border-top:1px solid var(--line)}article h3{font-size:17px;font-weight:600;margin:28px 0 8px}article p{margin:0 0 16px}article ul,article ol{margin:0 0 16px;padding-left:22px}article li{margin-bottom:8px}article strong,article b{font-weight:600}article table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;display:block;overflow-x:auto}article th,article td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}article th{font-weight:500;color:var(--ink-60);font-size:13px;letter-spacing:.02em}article blockquote{margin:20px 0;padding:14px 18px;background:var(--sunken);border-radius:10px;color:var(--ink-60);font-size:15.5px}article code{font-variant-numeric:tabular-nums;font-size:.92em;background:var(--sunken);padding:1px 5px;border-radius:4px}article hr{border:0;border-top:1px solid var(--line);margin:34px 0}.foot{border-top:1px solid var(--line);background:var(--surface)}.foot-in{max-width:var(--container);margin:0 auto;padding:32px var(--pad-x) 40px;display:flex;flex-wrap:wrap;gap:18px 34px;align-items:center}.foot-in p{margin:0;font-size:13px;color:var(--ink-40);max-width:40rem;line-height:1.6}.foot-links{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13px}.foot-links a{color:var(--ink-40);text-decoration:none;border-bottom:1px solid var(--line)}.foot-links a:hover{color:var(--ink);border-color:var(--ink)}.foot-cta{margin-left:auto}@media(max-width:720px){.foot-cta{margin-left:0}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}