:root{
  --emerald:#0AA073; --emerald-deep:#07835D; --g1:#14B981; --g2:#0BABA3;
  --ink:#0B1F1A; --ink-soft:#41544D; --ink-faint:#6B7C74;
  --wash:#F4FAF7; --mint:#E9F5EF; --mint-line:#CBE7DA; --line:#E4EDE8;
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:#fff;line-height:1.68;-webkit-font-smoothing:antialiased}
a{color:var(--emerald-deep)}
img{display:block;max-width:100%}
.wrap{max-width:760px;margin:0 auto;padding:0 24px}
header.nav{position:sticky;top:0;background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);z-index:10}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:1120px;margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:1.12rem;letter-spacing:-.02em;color:var(--ink);text-decoration:none}
.brand img{width:32px;height:32px;border-radius:8px}
.nav-in a.back{color:var(--ink-soft);text-decoration:none;font-weight:600;font-size:.94rem}
.nav-in a.back:hover{color:var(--ink)}
main{padding:clamp(40px,7vw,72px) 0 80px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.02em;color:var(--emerald-deep);background:var(--mint);border:1px solid var(--mint-line);padding:.35rem .75rem;border-radius:999px;text-transform:uppercase}
h1{font-size:clamp(2rem,4vw,2.7rem);letter-spacing:-.025em;line-height:1.08;margin:1rem 0 .4rem;font-weight:800}
.meta{color:var(--ink-faint);font-size:.92rem;margin:0 0 2.2rem}
h2{font-size:1.3rem;letter-spacing:-.01em;margin:2.2rem 0 .6rem;font-weight:750}
h3{font-size:1.05rem;margin:1.6rem 0 .4rem;font-weight:700}
p,li{color:var(--ink-soft)}
ul,ol{padding-left:1.2rem}
li{margin:.3rem 0}
strong{color:var(--ink)}
.callout{background:var(--wash);border:1px solid var(--line);border-left:3px solid var(--emerald);border-radius:12px;padding:16px 18px;margin:1.4rem 0}
.callout p{margin:.2rem 0;color:var(--ink)}
hr{border:none;border-top:1px solid var(--line);margin:2.4rem 0}
footer{border-top:1px solid var(--line);background:var(--wash);font-size:.9rem;color:var(--ink-soft)}
.foot-in{max-width:1120px;margin:0 auto;padding:28px 24px;display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a{color:var(--ink-soft);text-decoration:none}
.foot-links a:hover{color:var(--ink)}