:root{--ink:#102b36;--muted:#52666e;--paper:#fbfdfc;--card:#fff;--line:#dbe7e5;--teal:#0c776d;--teal2:#075e57;--mint:#e9f5f1;--gold:#d5a84d;--shadow:0 14px 35px rgba(16,43,54,.09)}
*{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:1.68}
a{color:var(--teal2);text-decoration-thickness:1px;text-underline-offset:3px}img{max-width:100%}.wrap{width:min(1120px,calc(100% - 36px));margin:auto}
.disclosure{background:#0f3037;color:#e8f5f2;font-size:.82rem;text-align:center;padding:8px 16px}.disclosure a{color:#fff}
header{position:sticky;top:0;z-index:30;background:rgba(251,253,252,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:24px}.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:850;letter-spacing:-.02em}.mark{width:34px;height:34px;border-radius:50%;border:7px solid var(--teal);box-shadow:inset 0 0 0 4px #fff;background:var(--gold)}
nav{display:flex;gap:22px;align-items:center}nav a{text-decoration:none;color:var(--ink);font-weight:650;font-size:.93rem}.menu{display:none;background:none;border:0;font-size:1.4rem}
.hero{padding:74px 0 52px;background:linear-gradient(145deg,#f6fbf9 0%,#eaf6f2 60%,#fbfdfc 100%)}.eyebrow{color:var(--teal);font-weight:800;text-transform:uppercase;letter-spacing:.11em;font-size:.76rem}
h1,h2,h3{line-height:1.12;letter-spacing:-.035em}h1{font-size:clamp(2.5rem,6vw,4.7rem);max-width:900px;margin:.18em 0}.hero p{font-size:1.18rem;max-width:760px;color:var(--muted)}
.btn{display:inline-block;background:var(--teal);color:#fff!important;text-decoration:none;border-radius:9px;padding:14px 20px;font-weight:800;box-shadow:0 7px 18px rgba(12,119,109,.2);border:0;cursor:pointer}.btn:hover{background:var(--teal2)}.btn.secondary{background:#fff;color:var(--teal2)!important;border:1px solid var(--line);box-shadow:none}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
section{padding:52px 0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:var(--shadow)}.card h3{margin-top:0}.card p{color:var(--muted)}
.article{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:48px;align-items:start;padding:52px 0}.article main{font-size:1.04rem}.article h1{font-size:clamp(2.25rem,5vw,3.9rem)}.article h2{margin-top:2.1em;font-size:1.8rem}.article h3{margin-top:1.7em}.article p,.article li{color:#263f48}.lede{font-size:1.2rem;color:var(--muted)!important}.toc{position:sticky;top:100px}.toc a{display:block;padding:7px 0;text-decoration:none}.note{background:var(--mint);border-left:4px solid var(--teal);padding:18px 20px;border-radius:8px;margin:24px 0}.warning{background:#fff8e9;border-left-color:var(--gold)}
.compare{width:100%;border-collapse:collapse;margin:24px 0;background:#fff}.compare th,.compare td{padding:13px;border:1px solid var(--line);text-align:left;vertical-align:top}.compare th{background:var(--mint)}
.cta{background:linear-gradient(135deg,#0d5e58,#0c776d);color:#fff;border-radius:18px;padding:30px;margin:32px 0}.cta p{color:#eaf7f4!important}.cta .btn{background:#fff;color:var(--teal2)!important}
.breadcrumbs{font-size:.84rem;color:var(--muted);margin-bottom:24px}.breadcrumbs a{color:var(--muted)}
footer{background:#102b36;color:#d7e6e3;padding:48px 0 28px;margin-top:50px}footer a{color:#fff}.footgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.fine{font-size:.82rem;color:#b9cbc8;border-top:1px solid #36515a;padding-top:22px;margin-top:28px}
.popup-backdrop{position:fixed;inset:0;background:rgba(6,24,29,.58);z-index:50;display:none;align-items:flex-end;justify-content:center;padding:18px}.popup{width:min(560px,100%);background:#fff;border-radius:20px;padding:28px;box-shadow:0 24px 80px rgba(0,0,0,.3);position:relative}.popup-close{position:absolute;right:14px;top:10px;background:none;border:0;font-size:1.7rem;cursor:pointer}.popup h2{margin:.2em 0}.popup p{color:var(--muted)}
.badge{display:inline-block;background:var(--mint);color:var(--teal2);padding:5px 9px;border-radius:99px;font-size:.78rem;font-weight:800}.meta{font-size:.9rem;color:var(--muted)}
@media(max-width:820px){.grid{grid-template-columns:1fr}.article{grid-template-columns:1fr}.toc{position:static;order:-1}.menu{display:block}nav{display:none;position:absolute;left:0;right:0;top:70px;background:#fff;padding:18px;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line)}nav.open{display:flex}.footgrid{grid-template-columns:1fr}.hero{padding-top:48px}.article{padding-top:34px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}