:root{--navy:#0b1f3a;--navy2:#12305c;--green:#16a34a;--green2:#22c55e;--ink:#0f172a;--mut:#475569;--bg:#f8fafc;--card:#fff;--line:#e2e8f0;--warn:#b45309;--r:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}
a{color:#0b5ed7}a:hover{color:#08398a}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.agebar{background:#111827;color:#f1f5f9;font-size:13px;text-align:center;padding:8px 16px}
.agebar strong{background:#dc2626;color:#fff;border-radius:6px;padding:1px 7px;margin-right:6px}.agebar a{color:#86efac}
.site-header{background:var(--navy);position:sticky;top:0;z-index:20;box-shadow:0 2px 10px rgba(0,0,0,.18)}
.hdr{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700;font-size:18px}
.logo{width:28px;height:28px;border-radius:8px;background:var(--navy2);position:relative;display:inline-block}
.logo:after{content:"";position:absolute;inset:6px;border:3px solid var(--green2);border-radius:50%}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:#cbd5e1;text-decoration:none;padding:8px 12px;border-radius:8px;font-size:15px}
.nav a:hover,.nav a[aria-current=page]{background:var(--navy2);color:#fff}
.nav-toggle,.burger{display:none}
.crumbs{font-size:13px;color:var(--mut);padding-top:18px}.crumbs a{color:var(--mut)}
.hero{background:linear-gradient(135deg,var(--navy) 0,var(--navy2) 100%);color:#fff;padding:64px 0 52px}
.hero h1{font-size:clamp(28px,4.4vw,44px);line-height:1.15;margin:.2em 0 .4em;max-width:820px}
.hero .lead{font-size:18px;color:#cbd5e1;max-width:720px}
.eyebrow{color:var(--green2);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:13px;margin:0}
.hero .small{color:#94a3b8}
.btn{display:inline-block;background:var(--green);color:#fff!important;text-decoration:none;font-weight:700;padding:13px 22px;border-radius:12px;margin:6px 8px 6px 0;box-shadow:0 4px 14px rgba(22,163,74,.35)}
.btn:hover{background:#15803d}.btn.ghost{background:transparent;border:2px solid #94a3b8;box-shadow:none;color:#fff!important}
.cta{margin:26px 0}.small{font-size:13px;color:var(--mut);display:block;margin-top:6px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:44px auto}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.card h2{margin:.1em 0 .4em;font-size:19px}.card p{color:var(--mut)}
.split{display:grid;grid-template-columns:2fr 1fr;gap:28px;margin:20px auto 60px;align-items:start}
.note-box{background:#ecfdf5;border:1px solid #a7f3d0;border-radius:var(--r);padding:16px 18px;margin:18px 0}
.note-box.alert{background:#fef2f2;border-color:#fecaca}
.prose{max-width:820px;padding-top:12px;padding-bottom:60px}
.prose h1{font-size:clamp(26px,3.6vw,36px);line-height:1.2}.prose h2{margin-top:1.8em;font-size:24px}
.meta{color:var(--mut);font-size:14px}
.ticks,.cross{list-style:none;padding:0}
.ticks li,.cross li{position:relative;padding-left:28px;margin:8px 0}
.ticks li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.cross li:before{content:"!";position:absolute;left:3px;color:var(--warn);font-weight:800}
.formula{background:#fff;border:1px dashed #94a3b8;border-radius:10px;padding:12px 16px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:15px}
.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;margin:16px 0}
.tbl th,.tbl td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl thead th{background:var(--navy);color:#fff}
.proscons{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.disc{font-size:13px;color:var(--mut);border-top:1px solid var(--line);padding-top:14px;margin-top:26px}
.site-footer{background:#0a1628;color:#cbd5e1;padding:38px 0 26px;margin-top:40px}
.site-footer a{color:#93c5fd}.site-footer h3{color:#fff;font-size:16px;margin:0 0 8px}
.warn{background:#7f1d1d;color:#fff;border-radius:10px;padding:12px 16px;margin-bottom:24px;font-size:14px}.warn a{color:#fecaca}
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.fine{font-size:12.5px;color:#94a3b8;margin:14px 0 0}
.cookiebar{position:fixed;left:16px;right:16px;bottom:16px;max-width:640px;margin:auto;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;box-shadow:0 10px 30px rgba(0,0,0,.2);z-index:50;font-size:14px}
.cookiebar[hidden]{display:none}
.cookiebar button{background:var(--green);color:#fff;border:0;border-radius:10px;padding:9px 16px;font-weight:700;cursor:pointer}
.cookiebar button.ghost{background:#e2e8f0;color:#0f172a}
@media(max-width:820px){
 .grid3,.cols,.split,.proscons{grid-template-columns:1fr}
 .burger{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:10px}
 .burger span{width:24px;height:2px;background:#fff;display:block}
 .nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--navy);flex-direction:column;padding:8px 16px 16px}
 .nav-toggle:checked~.nav{display:flex}
 .hdr{position:relative}.hero{padding:44px 0 36px}
}
@media(prefers-reduced-motion:no-preference){.btn{transition:background .15s}}
.outbound-note{margin:0 0 14px;padding:10px 14px;border:1px solid rgba(255,255,255,.25);border-radius:8px;font-size:.92rem;line-height:1.5}