:root{
  --bg:#0c1522;
  --surface:#111e2f;
  --surface-2:#17263a;
  --text:#edf4fb;
  --muted:#aebed0;
  --line:#2a3b52;
  --brand:#58b4ff;
  --brand-2:#8fd3ff;
  --accent:#d6eaff;
  --max:1180px;
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#09121d 0%,#0c1522 28%,#0f1a29 100%);
  line-height:1.7;
}
a{color:var(--brand-2);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.wrap{width:min(100% - 36px,var(--max));margin:auto}
.site-header{
  position:sticky;top:0;z-index:20;
  backdrop-filter:blur(14px);
  background:rgba(8,17,28,.88);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px}
.logo{font-weight:800;letter-spacing:.2px;color:#fff;font-size:1.08rem}
.nav-links{display:flex;flex-wrap:wrap;gap:18px;font-size:.95rem}
.hero{padding:74px 0 44px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}
.eyebrow{color:var(--brand-2);text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;font-weight:800}
h1{font-size:clamp(2.35rem,5vw,4.4rem);line-height:1.02;margin:.4rem 0 1rem}
h2{font-size:clamp(1.55rem,3vw,2.35rem);line-height:1.18;margin:2.4rem 0 .9rem}
h3{font-size:1.25rem}
.lead{font-size:1.15rem;color:#d4e0ec;max-width:62ch}
.hero-card{border:1px solid var(--line);border-radius:24px;overflow:hidden;background:var(--surface);box-shadow:0 24px 70px rgba(0,0,0,.25)}
.hero-card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:999px;font-weight:800}
.btn-primary{background:var(--brand);color:#051321}
.btn-secondary{border:1px solid var(--line);color:#fff;background:rgba(255,255,255,.03)}
main{padding-bottom:60px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px}
.content{background:rgba(17,30,47,.5);border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.content p,.content li{color:#c8d6e5}
.content ul{padding-left:1.25rem}
.sidebar{position:sticky;top:100px;align-self:start}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:18px}
.breadcrumb{font-size:.9rem;color:var(--muted);margin:18px 0 0}
.meta{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin-top:14px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px}
.faq details{border-top:1px solid var(--line);padding:16px 0}
.faq details:first-child{border-top:0}
.faq summary{cursor:pointer;font-weight:800}
.cta{margin-top:34px;padding:28px;border-radius:20px;background:linear-gradient(135deg,#143254,#1f4264);border:1px solid #345676}
.site-footer{border-top:1px solid var(--line);padding:34px 0 50px;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px}
small{color:var(--muted)}
@media(max-width:900px){
  .hero-grid,.article-layout,.footer-grid{grid-template-columns:1fr}
  .sidebar{position:static}
  .grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
}
@media(max-width:600px){
  .grid{grid-template-columns:1fr}
  .content{padding:22px}
  .hero{padding-top:46px}
}