/* Same Navy + Sky Blue + White palette as the rest of the site — see
   index.html for the full accessibility rationale. */
:root{
  --bg:#fff;--bg-subtle:#f3f6fb;--ink:#12123a;--muted:#5a5a6e;--muted-2:#6b6b78;
  --blue:#0071e3;--blue-hover:#0059b3;--green:#0a8a5f;--line:rgba(18,18,58,.12);
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",Helvetica,Arial,sans-serif;
  --mono:"SF Mono",ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:var(--sans);color:var(--ink);line-height:1.45;
  -webkit-font-smoothing:antialiased;background:var(--bg);
  min-height:100vh;display:flex;flex-direction:column;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:640px;margin:0 auto;padding:0 clamp(20px,4vw,56px)}

header{padding:clamp(12px,2.2vh,18px) 0;border-bottom:1px solid var(--line)}
.header-inner{max-width:1320px;margin:0 auto;padding:0 clamp(20px,4vw,56px);display:flex;align-items:center}
.brand{display:flex;align-items:center;gap:9px;font-size:15px}
.brand-badge{display:flex;flex-direction:column;align-items:center;justify-content:center;height:2.1em;width:2.1em;background:var(--blue);color:#fff;border-radius:.4em;overflow:hidden;font-family:inherit;font-weight:800}
.badge-letter{font-size:.8em;line-height:1;height:1em;display:flex;align-items:center;justify-content:center}
.badge-bar{width:1em;height:.115em;background:#fff;margin:.12em 0;flex-shrink:0}
.brand-stack{display:flex;flex-direction:column;align-items:flex-end;justify-content:center;gap:.16em;line-height:1}
.brand-word{font-weight:800;text-transform:uppercase;letter-spacing:.03em;color:var(--blue);font-size:.72em;line-height:1;white-space:nowrap}
.brand-word .cap{font-size:1.2em}

main{flex:1;display:flex;align-items:center;justify-content:center;padding:clamp(40px,8vh,88px) 0}
.check{
  width:56px;height:56px;border-radius:50%;background:var(--bg-subtle);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
}
.check svg{width:28px;height:28px;color:var(--green)}
.kicker{color:var(--green);font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px}
h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700;letter-spacing:-.03em;line-height:1.1;margin-bottom:16px}
.lede{font-size:1.05rem;color:var(--muted);max-width:480px;margin:0 0 30px}
.lede code{font-family:var(--mono);font-size:.9em;background:var(--bg-subtle);padding:2px 7px;border-radius:6px;color:var(--ink)}

.btn{display:inline-block;background:var(--blue);color:#fff;border-radius:999px;padding:15px 30px;font-size:16px;font-weight:600}
.btn:hover{background:var(--blue-hover)}
.meta{font-size:12px;color:var(--muted-2);margin-top:14px}
.meta code{font-family:var(--mono);background:var(--bg-subtle);padding:2px 7px;border-radius:6px}

.next{margin-top:48px;padding-top:32px;border-top:1px solid var(--line)}
.next h2{font-size:.95rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted-2);margin-bottom:14px}
.next ul{list-style:none}
.next li{margin-bottom:10px;font-size:.95rem;color:var(--muted)}
.next li a{color:var(--blue);font-weight:600}
.next li a:hover{color:var(--blue-hover)}

main.doc{display:block;flex:none;max-width:760px;margin:0 auto;padding:clamp(32px,6vh,64px) clamp(20px,4vw,56px)}
.doc h1{font-size:clamp(1.7rem,3.6vw,2.3rem);letter-spacing:-.03em;margin-bottom:8px}
.doc h2{font-size:1.2rem;margin:34px 0 10px;letter-spacing:-.01em}
.doc h3{font-size:1rem;margin:20px 0 6px}
.doc p,.doc li{font-size:.97rem;color:var(--muted);margin-bottom:10px}
.doc ul{padding-left:22px;margin-bottom:10px}
.doc a{color:var(--blue);font-weight:600}
.doc .upd{font-size:13px;color:var(--muted-2);margin-bottom:22px}
.doc hr{border:0;border-top:1px solid var(--line);margin:44px 0 0}
.doc .lang{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);margin-top:36px}
.todo{background:#fff3cd;color:#664d03;padding:1px 6px;border-radius:5px;font-weight:600}
body{display:block}

.site-footer{border-top:1px solid var(--line);margin-top:48px;padding:28px 0 36px;font-size:13px;color:var(--muted-2,#6b6b78)}
.site-footer .foot-inner{max-width:1320px;margin:0 auto;padding:0 clamp(20px,4vw,56px);display:flex;flex-wrap:wrap;gap:10px 28px;align-items:center;justify-content:space-between}
.site-footer nav{display:flex;flex-wrap:wrap;gap:6px 20px}
.site-footer a{color:var(--blue);font-weight:600}
.site-footer a:hover{color:var(--blue-hover)}
.site-footer .foot-note{flex-basis:100%;font-size:12px}