:root{--ink:#14213d;--muted:#5e6a79;--line:#dfe5ec;--paper:#fff;--wash:#f5f8fc;--brand:#1e4f91;--accent:#f08a24;--accent-dark:#ca6c11;--good:#0b6b53;--max:1160px;--radius:18px;--shadow:0 12px 36px rgba(20,33,61,.08)}
*{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(--brand);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:#143c70}.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-row{display:flex;align-items:center;gap:24px;min-height:72px}.brand{font-weight:950;letter-spacing:-.035em;text-decoration:none;color:var(--ink);font-size:1.15rem;white-space:nowrap}.brand span{color:var(--accent)}
nav{margin-left:auto}nav ul{display:flex;align-items:center;gap:17px;list-style:none;margin:0;padding:0}nav a{text-decoration:none;color:var(--ink);font-weight:760;font-size:.93rem}.header-cta{margin-left:4px}
.btn{display:inline-block;padding:12px 17px;border-radius:11px;font-weight:900;text-decoration:none;border:0}.btn-primary{background:var(--accent);color:#1e1a14}.btn-primary:hover{background:var(--accent-dark);color:#fff}.btn-secondary{background:#fff;border:1px solid var(--line);color:var(--ink)}
.hero{padding:72px 0 48px;background:linear-gradient(180deg,#f7fbff 0,#fff 100%)}.eyebrow{text-transform:uppercase;font-size:.78rem;letter-spacing:.13em;font-weight:950;color:var(--brand)}
h1{font-size:clamp(2.15rem,5.5vw,4.55rem);line-height:1.02;letter-spacing:-.055em;margin:.22em 0 .28em}h2{font-size:clamp(1.45rem,3vw,2.3rem);line-height:1.16;letter-spacing:-.035em;margin-top:1.55em}h3{line-height:1.25;letter-spacing:-.02em}
.lede{font-size:1.18rem;max-width:800px;color:var(--muted)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}
main{padding-bottom:72px}.content{display:grid;grid-template-columns:minmax(0,1fr) 305px;gap:44px;padding-top:30px}.prose{max-width:790px}.sidebar{align-self:start;position:sticky;top:95px}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff;box-shadow:var(--shadow)}.card+.card{margin-top:16px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tag{display:inline-block;background:#edf4fb;color:var(--brand);padding:5px 9px;border-radius:99px;font-size:.76rem;font-weight:900}.small{font-size:.87rem;color:var(--muted)}
.note{border-left:4px solid var(--accent);background:#fff7ee;padding:16px 18px;border-radius:10px;margin:24px 0}.good{border-left-color:var(--good);background:#eef9f5}
.cta{margin:32px 0;padding:27px;border-radius:var(--radius);background:#102a4f;color:#fff}.cta h2,.cta h3{margin-top:0}.cta p{color:#dce7f5}.cta .small{color:#b9c9dc}.side-cta{background:#102a4f;color:#fff}.side-cta a:not(.btn){color:#fff}.side-cta p{color:#dce7f5}.side-cta .small{color:#b9c9dc}
table{width:100%;border-collapse:collapse;margin:22px 0;font-size:.94rem}th,td{padding:12px;border:1px solid var(--line);vertical-align:top;text-align:left}th{background:var(--wash)}
.breadcrumbs{font-size:.88rem;color:var(--muted);padding:17px 0}.breadcrumbs a{color:inherit}.updated{font-size:.84rem;color:var(--muted)}.toc{background:var(--wash);border:1px solid var(--line);padding:18px;border-radius:14px}.toc a{display:block;margin:5px 0}
footer{background:#0e1c30;color:#c9d5e5;padding:45px 0}footer a{color:#fff}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}footer .small{color:#aebed1}.mobile-cta{display:none}
@media(max-width:900px){.header-row{flex-wrap:wrap;padding:12px 0}.header-cta{display:none}nav{order:3;width:100%;overflow:auto}nav ul{min-width:max-content}.content{grid-template-columns:1fr}.sidebar{position:static}.grid{grid-template-columns:1fr}.mobile-cta{display:block;position:fixed;left:12px;right:12px;bottom:12px;z-index:60;text-align:center;box-shadow:0 10px 30px rgba(0,0,0,.2)}body{padding-bottom:72px}}