:root{
  --ink:#18322d;--muted:#62736e;--paper:#fbfcfa;--card:#ffffff;--line:#dfe7e3;
  --sage:#e8f1ed;--sage2:#d2e5dc;--accent:#1e6b57;--accent2:#164c40;--warm:#f6f1e8;
  --danger:#fff4e8;--shadow:0 14px 40px rgba(24,50,45,.08);--radius:20px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);line-height:1.65}
a{color:var(--accent2);text-decoration-thickness:1px;text-underline-offset:3px}
img{max-width:100%}
.wrap{width:min(1160px,calc(100% - 32px));margin:auto}
header{position:sticky;top:0;z-index:10;background:rgba(251,252,250,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.topbar{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-weight:800;letter-spacing:-.02em}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(145deg,var(--accent),#7ba992);display:grid;place-items:center;color:white;font-weight:900}
nav{display:flex;gap:18px;align-items:center;flex-wrap:wrap} nav a{text-decoration:none;font-size:.93rem;font-weight:700}
.hero{padding:76px 0 54px;background:linear-gradient(180deg,#f1f7f3 0%,var(--paper) 100%)}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:center}
.eyebrow{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;font-weight:800;color:var(--accent)}
h1,h2,h3{line-height:1.15;letter-spacing:-.03em} h1{font-size:clamp(2.45rem,5vw,4.6rem);margin:.2em 0 .28em}
h2{font-size:clamp(1.55rem,2.4vw,2.25rem);margin-top:2.2em} h3{font-size:1.2rem}
.lede{font-size:1.2rem;color:#405750;max-width:760px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 18px;border-radius:999px;background:var(--accent);color:white;text-decoration:none;font-weight:800;box-shadow:var(--shadow)}
.btn:hover{background:var(--accent2)}
.btn.secondary{background:transparent;color:var(--accent2);border:1px solid var(--accent)}
.hero-card,.card,.factbox,.notice,.cta-card,.toc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:26px}.hero-card strong{display:block;font-size:1.05rem;margin-bottom:8px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid.two{grid-template-columns:repeat(2,1fr)}
.card{padding:24px;text-decoration:none;color:var(--ink);transition:.18s transform,.18s box-shadow}.card:hover{transform:translateY(-3px);box-shadow:0 18px 45px rgba(24,50,45,.12)}
.card h3{margin:.25em 0 .5em}.card p{color:var(--muted);margin-bottom:0}
.section{padding:58px 0}.section.tint{background:var(--sage)}
.pill{display:inline-block;padding:5px 10px;border-radius:999px;background:var(--sage);font-size:.77rem;font-weight:800;margin-bottom:8px}
.article-head{padding:54px 0 28px}.breadcrumbs{font-size:.88rem;color:var(--muted);margin-bottom:18px}
.breadcrumbs a{color:var(--muted)}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 270px;gap:46px;align-items:start}
article{font-size:1.04rem} article p{margin:1em 0} article li{margin:.45em 0}
.factbox,.notice{padding:20px 22px;margin:24px 0}.factbox{background:var(--warm)}.notice{background:#eef6fb;border-color:#d5e7f2}
.cta-card{padding:24px;margin:36px 0;background:linear-gradient(135deg,var(--sage),#f8fbf9);display:flex;align-items:center;justify-content:space-between;gap:22px}.cta-card h3{margin:.2em 0 .45em}.cta-card p{margin:0;color:var(--muted)}
.toc{padding:18px;position:sticky;top:95px}.toc strong{display:block;margin-bottom:10px}.toc a{display:block;text-decoration:none;padding:5px 0;font-size:.9rem}
.sources{border-top:1px solid var(--line);margin-top:46px;padding-top:22px}.small{font-size:.84rem;color:var(--muted)}
.disclosure{padding:12px 16px;background:#f7f2e7;border-bottom:1px solid #eadfc8;font-size:.85rem;text-align:center}
footer{background:#18322d;color:#e8f1ed;padding:48px 0;margin-top:60px}footer a{color:white} .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px}
.related{margin-top:46px}.related .grid{grid-template-columns:repeat(2,1fr)}
table{width:100%;border-collapse:collapse;margin:24px 0;background:white;border:1px solid var(--line)}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--sage)}
.wave-label{font-size:.8rem;font-weight:800;color:var(--accent);text-transform:uppercase;letter-spacing:.08em}
.mobile-menu{display:none}
@media (max-width:850px){
 .hero-grid,.article-layout,.footer-grid{grid-template-columns:1fr}.grid,.grid.two,.related .grid{grid-template-columns:1fr}
 nav{display:none}.mobile-menu{display:block;font-weight:800}.toc{position:static}.cta-card{align-items:flex-start;flex-direction:column}
 .hero{padding-top:48px} h1{font-size:2.65rem}
}