:root{--ink:#17201d;--muted:#60706a;--line:#dbe4df;--paper:#fbfcfb;--soft:#f0f5f2;--accent:#1e5a45;--accent2:#a7d7c4;--warn:#fff8e8;--max:1180px;--article:790px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper)}
a{color:var(--accent);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}
.shell{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.article-shell{width:min(calc(100% - 32px),var(--article));margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px;z-index:99}.skip:focus{left:8px}
.site-header{position:sticky;top:0;z-index:40;background:rgba(251,252,251,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.header-row{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-weight:780;color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--ink);color:white;font-size:13px;letter-spacing:.04em}
.site-nav{display:flex;gap:20px;align-items:center}.site-nav a{text-decoration:none;color:var(--ink);font-size:14px}.site-nav a:hover{color:var(--accent)}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 11px}
.hero{padding:76px 0 44px;background:linear-gradient(180deg,#eef5f1 0%,var(--paper) 100%)}.kicker{text-transform:uppercase;letter-spacing:.12em;font-size:12px;font-weight:800;color:var(--accent);margin:0 0 12px}
h1{font-size:clamp(38px,6vw,66px);line-height:1.02;letter-spacing:-.045em;margin:.1em 0 .35em}h2{font-size:clamp(26px,4vw,36px);line-height:1.15;letter-spacing:-.025em;margin:2.1em 0 .55em}h3{font-size:21px;line-height:1.3;margin:1.7em 0 .45em}
.lead{font-size:20px;line-height:1.55;color:#3f5049;max-width:720px}.article{padding:24px 0 84px}.article p,.article li{max-width:75ch}
.meta{font-size:14px;color:var(--muted)}.affiliate-banner{padding:10px 16px;background:var(--warn);border-bottom:1px solid #ead9a9;text-align:center;font-size:14px}
.callout{background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:24px 0}.callout strong{display:block;margin-bottom:4px}
.decision{border-left:4px solid var(--accent);background:#f4f8f6;padding:20px 22px;margin:28px 0;border-radius:0 12px 12px 0}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card{border:1px solid var(--line);border-radius:16px;padding:22px;background:#fff}.card h2,.card h3{margin-top:0}.card p:last-child{margin-bottom:0}
.cards-3{grid-template-columns:repeat(3,minmax(0,1fr))}
table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}th,td{text-align:left;vertical-align:top;padding:12px;border-bottom:1px solid var(--line)}th{background:var(--soft)}
.btn{display:inline-block;text-decoration:none;background:var(--accent);color:white;padding:12px 17px;border-radius:10px;font-weight:750;margin:6px 8px 6px 0}.btn.secondary{background:white;color:var(--accent);border:1px solid var(--accent)}
.sourcebox{margin:50px 0 0;border-top:1px solid var(--line);padding-top:24px}.sourcebox h2{font-size:21px;margin-top:0}.sourcebox li{margin:8px 0}.muted{color:var(--muted);font-size:14px}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:16px}.breadcrumb a{color:inherit}
.site-footer{border-top:1px solid var(--line);background:#f2f5f3;padding:42px 0}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}.footer-brand{margin-bottom:12px}
.home-hero{padding:90px 0 55px}.home-hero .shell{display:grid;grid-template-columns:1.4fr .8fr;gap:50px;align-items:end}.home-hero h1{max-width:850px}.home-note{border:1px solid var(--line);background:#fff;border-radius:16px;padding:24px}
.section{padding:58px 0}.section.alt{background:var(--soft)}.section h2:first-child{margin-top:0}
.tag{display:inline-block;font-size:12px;font-weight:750;border:1px solid var(--line);border-radius:999px;padding:4px 8px;color:var(--muted);margin-right:6px}
ul.clean{list-style:none;padding:0}.clean li{padding:8px 0;border-bottom:1px solid var(--line)}
.notice{font-size:14px;padding:13px 16px;background:#f8f9f8;border:1px solid var(--line);border-radius:10px}
@media(max-width:820px){
 .nav-toggle{display:block}.site-nav{position:absolute;left:16px;right:16px;top:60px;display:none;flex-direction:column;align-items:stretch;background:white;border:1px solid var(--line);border-radius:12px;padding:12px;box-shadow:0 12px 30px rgba(0,0,0,.08)}.site-nav.open{display:flex}.site-nav a{padding:8px}
 .grid,.cards-3,.footer-grid,.home-hero .shell{grid-template-columns:1fr}.hero{padding-top:52px}.home-hero{padding-top:58px}h1{font-size:44px}
}
@media(max-width:480px){.shell,.article-shell{width:min(calc(100% - 24px),var(--max))}h1{font-size:38px}.lead{font-size:18px}th,td{padding:9px 7px;font-size:14px}}