:root{
  --bg:#0B1320;
  --card:#1C2541;
  --acc:#5BC0BE;
  --text:#EAF2FF;
  --muted:#B7C6E6;
  --shadow: 0 14px 40px rgba(0,0,0,.35);
  --radius:18px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: radial-gradient(1200px 600px at 20% 0%, rgba(91,192,190,.25), transparent 60%),
              radial-gradient(1000px 600px at 80% 10%, rgba(255,255,255,.06), transparent 60%),
              var(--bg);
  color:var(--text);
}

.wrap{max-width:1100px;margin:0 auto;padding:22px}
.hero{padding:30px 0 10px}
.badge{
  display:inline-block;
  background:rgba(91,192,190,.15);
  border:1px solid rgba(91,192,190,.35);
  padding:6px 10px;
  border-radius:999px;
  color:var(--acc);
  font-weight:700;
  letter-spacing:.3px;
  margin-bottom:10px;
}
h1{font-size:2rem;line-height:1.15;margin:0 0 14px}
.lead{color:var(--muted);font-size:1.03rem;max-width:900px}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
.promo{font-weight:800}

.tocCard{
  margin:18px 0 18px;
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius);
  padding:16px 16px 10px;
  box-shadow:var(--shadow);
}
.tocTitle{font-weight:900;margin-bottom:10px;color:#fff}
.tocCard ol{margin:0;padding-left:18px}
.tocCard li{margin:8px 0}
.tocCard a{color:#EAF2FF}
.tocCard a:hover{color:var(--acc)}

.grid{
  display:grid;
  grid-template-columns: 1fr 280px;
  gap:22px;
  align-items:start;
}
@media (max-width: 980px){
  .grid{grid-template-columns:1fr}
  .side{display:none}
}

.content section{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius);
  padding:18px;
  margin-bottom:16px;
  box-shadow: 0 10px 28px rgba(0,0,0,.25);
}
h2{margin:0 0 10px;font-size:1.25rem}
.checklist li{margin:8px 0}
.steps{display:grid;gap:10px;margin-top:10px}
.step{
  display:flex;gap:10px;align-items:center;
  background:rgba(91,192,190,.08);
  border:1px solid rgba(91,192,190,.22);
  padding:10px 12px;border-radius:14px
}
.step span{
  width:28px;height:28px;border-radius:999px;
  display:grid;place-items:center;
  background:var(--acc);color:#06202b;font-weight:900
}
.callout{
  margin-top:10px;
  padding:12px 14px;
  border-radius:14px;
  border:1px solid rgba(91,192,190,.30);
  background:rgba(91,192,190,.08);
}
.danger li{margin:8px 0;color:#ffd6d6}

.related h3{margin:0 0 10px}
.relatedLinks{display:flex;flex-wrap:wrap;gap:10px}
.relatedLinks a{
  padding:8px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(0,0,0,.18);
}

.faq details{
  background:rgba(0,0,0,.18);
  border:1px solid rgba(255,255,255,.10);
  padding:12px 12px;
  border-radius:14px;
  margin:10px 0;
}
.faq summary{cursor:pointer;font-weight:800}

.side .sticky{
  position:sticky;top:16px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius);
  padding:16px;
}
.btn{
  width:100%;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid rgba(91,192,190,.40);
  background:rgba(91,192,190,.12);
  color:var(--text);
  font-weight:900;
  cursor:pointer;
}
.btn:hover{background:rgba(91,192,190,.20)}
.mini{color:var(--muted);font-size:.95rem}

.footer{
  margin-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  padding:10px 0 18px;
}
.foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.disc{color:var(--muted)}