:root{
  --bg:#0b0f14;
  --panel:#111826;
  --card:#141e30;
  --text:#eaf0ff;
  --muted:#b7c3df;
  --line: rgba(255,255,255,.10);
  --accent:#6aa6ff;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1000px 700px at 20% 0%, rgba(106,166,255,.18), transparent 60%),
              radial-gradient(900px 600px at 80% 20%, rgba(120,255,205,.10), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height:1.55;
}

a{color:var(--text); text-decoration:none}
a:hover{color: var(--accent)}
.container{max-width:1100px;margin:0 auto;padding:0 18px}

.header{
  position:sticky; top:0; z-index:10;
  background: rgba(11,15,20,.75);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
}
.brand{font-weight:800; letter-spacing:.3px}
.menu{display:flex; gap:14px; align-items:center; flex-wrap:wrap}
.menu a{opacity:.92}
.menu a[aria-current="page"]{opacity:1; color:var(--accent)}

.btn{
  display:inline-block;
  background: linear-gradient(180deg, rgba(106,166,255,.95), rgba(106,166,255,.70));
  color:#051225;
  padding:10px 14px;
  border-radius:12px;
  font-weight:700;
  border:1px solid rgba(255,255,255,.15);
}
.btn:hover{filter:brightness(1.05)}
.btn.ghost{
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn.ghost:hover{border-color: rgba(106,166,255,.5)}

.hero{padding:46px 0 22px}
.hero-grid{display:grid; grid-template-columns: 1.25fr .9fr; gap:18px}
@media (max-width: 900px){ .hero-grid{grid-template-columns:1fr} }

.lead{font-size:1.06rem; color: var(--muted); margin-top:10px}
.hero-actions{display:flex; gap:10px; margin:16px 0 18px; flex-wrap:wrap}
.meta{
  margin-top:10px;
  padding:12px;
  border:1px solid var(--line);
  border-radius:14px;
  background: rgba(20,30,48,.35);
  color: var(--muted);
  font-size:.95rem;
}

.section{padding:26px 0}
.section.alt{background: rgba(17,24,38,.45); border-top:1px solid var(--line); border-bottom:1px solid var(--line)}
.grid-3{display:grid; grid-template-columns: repeat(3, 1fr); gap:14px}
.grid-2{display:grid; grid-template-columns: repeat(2, 1fr); gap:14px}
@media (max-width: 900px){
  .grid-3,.grid-2{grid-template-columns:1fr}
}

.card{
  background: rgba(20,30,48,.55);
  border: 1px solid var(--line);
  border-radius:18px;
  padding:16px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.card h2,.card h3{margin:0 0 8px 0}
.small{font-size:.92rem}
.muted{color: var(--muted)}
.prose h2{margin-top:18px}
.prose ul{color: var(--muted)}

.checklist{margin:10px 0 0 0; padding-left:18px; color: var(--muted)}
.checklist li{margin:8px 0}
.label{display:block; margin:10px 0 6px; color: var(--muted); font-size:.95rem}
.input{
  width:100%;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background: rgba(11,15,20,.55);
  color: var(--text);
  outline:none;
}
.input:focus{border-color: rgba(106,166,255,.55)}
.footer{
  padding:22px 0;
  border-top:1px solid var(--line);
  background: rgba(11,15,20,.55);
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap:14px;
}
@media (max-width: 900px){ .footer-grid{grid-template-columns:1fr} }