:root{
  --bg:#081018;--panel:#0e1924;--panel2:#132231;--ink:#ecf5f7;--muted:#a8bac2;
  --accent:#70e1c6;--accent2:#78a9ff;--line:#263a49;--paper:#f7fafb;--paperink:#15242d;
  --max:1160px;--radius:18px
}
*{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;background:var(--paper);color:var(--paperink);line-height:1.65}
a{color:#0a6a77;text-decoration-thickness:1px;text-underline-offset:3px}
img,svg{max-width:100%}
.wrap{width:min(var(--max),calc(100% - 36px));margin:auto}
.site-header{background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:800;letter-spacing:-.02em}
.brand-mark{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--accent);font-size:1.2rem}
.nav{display:flex;gap:20px;align-items:center}
.nav a{color:#d9e7eb;text-decoration:none;font-size:.94rem}
.nav a:hover{color:white}
.menu-btn{display:none;border:1px solid var(--line);background:transparent;color:white;border-radius:10px;padding:8px 11px}
.hero{background:
 radial-gradient(circle at 76% 20%,rgba(120,169,255,.22),transparent 28%),
 radial-gradient(circle at 18% 0%,rgba(112,225,198,.17),transparent 26%),
 var(--bg);color:var(--ink);padding:84px 0 72px}
.eyebrow{font:700 .77rem ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
h1,h2,h3{line-height:1.12;letter-spacing:-.035em}
h1{font-size:clamp(2.65rem,7vw,5.6rem);max-width:900px;margin:.24em 0}
.hero p{font-size:1.15rem;color:#c6d7dc;max-width:720px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-block;border-radius:12px;padding:12px 17px;font-weight:800;text-decoration:none;border:1px solid transparent}
.btn-primary{background:var(--accent);color:#06201c}
.btn-secondary{border-color:#416073;color:white}
.notice{font-size:.84rem;color:#9eb1b8;margin-top:16px}
.section{padding:58px 0}
.section-dark{background:var(--bg);color:var(--ink)}
.section h2{font-size:clamp(2rem,4vw,3.15rem);margin:0 0 12px}
.section-intro{max-width:760px;color:#51646d;margin-bottom:28px}
.section-dark .section-intro{color:#aec1c8}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:white;border:1px solid #dce7eb;border-radius:var(--radius);padding:24px;box-shadow:0 10px 30px rgba(20,43,52,.05)}
.section-dark .card{background:var(--panel);border-color:var(--line);box-shadow:none}
.card h3{margin:.15em 0 .45em;font-size:1.35rem}
.card p{color:#61727a}
.section-dark .card p{color:#adc0c7}
.card a.stretch{font-weight:800}
.pill{display:inline-block;background:#e6f7f3;color:#146052;border-radius:999px;padding:4px 9px;font-size:.74rem;font-weight:800}
.section-dark .pill{background:#163b36;color:#9ff2de}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:42px;align-items:start;padding:50px 0 70px}
.article h1{font-size:clamp(2.5rem,5vw,4.5rem);margin:.2em 0}
.lede{font-size:1.18rem;color:#526770}
.meta{font-size:.84rem;color:#71838a;border-bottom:1px solid #dae5e9;padding-bottom:18px;margin-bottom:28px}
.article h2{font-size:2rem;margin-top:2.1em}
.article h3{font-size:1.35rem;margin-top:1.6em}
.article table{border-collapse:collapse;width:100%;margin:22px 0;font-size:.95rem}
.article th,.article td{border:1px solid #d7e3e7;padding:11px 12px;text-align:left;vertical-align:top}
.article th{background:#edf4f6}
.callout{background:#edf8f6;border-left:4px solid #28a98d;padding:18px 20px;border-radius:0 12px 12px 0;margin:24px 0}
.affiliate-box{background:var(--bg);color:var(--ink);padding:24px;border-radius:16px;margin:28px 0}
.affiliate-box p{color:#bfd0d5}
.affiliate-box .btn{margin-top:5px}
.sidebar{position:sticky;top:96px}
.sidebar-box{background:#fff;border:1px solid #dce7eb;border-radius:16px;padding:20px;margin-bottom:16px}
.sidebar-box h3{margin-top:0}
.sidebar-box ul{padding-left:18px}
.breadcrumbs{font-size:.83rem;color:#6e8087;margin-bottom:16px}
.breadcrumbs a{color:#536d76}
.sources{font-size:.87rem;color:#64777f}
.sources li{margin-bottom:8px}
.footer{background:#050b10;color:#b7c8ce;padding:46px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
.footer a{color:#d7e6ea}
.footer small{color:#8ca1a9}
.disclosure{background:#f1f6f7;border:1px solid #d7e2e6;border-radius:12px;padding:12px 14px;font-size:.87rem}
.compare{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.kicker{font-size:1.05rem;font-weight:700;color:#46606a}
.list-clean{list-style:none;padding:0}
.list-clean li{padding:8px 0;border-bottom:1px solid #dce7eb}
@media(max-width:900px){
 .grid{grid-template-columns:1fr 1fr}
 .article-shell{grid-template-columns:1fr}.sidebar{position:static}
 .nav{display:none;position:absolute;left:0;right:0;top:72px;background:var(--bg);padding:18px;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line)}
 .nav.open{display:flex}.menu-btn{display:block}.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
 .grid,.compare,.footer-grid{grid-template-columns:1fr}.hero{padding:58px 0 48px}
 .section{padding:42px 0}.article-shell{padding-top:32px}.wrap{width:min(var(--max),calc(100% - 26px))}
 h1{font-size:2.6rem}.article h1{font-size:2.55rem}
}