:root{
  --bg: #0b1220;
  --panel: rgba(255,255,255,.06);
  --panel2: rgba(255,255,255,.08);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.68);
  --line: rgba(255,255,255,.14);
  --accent: #6ee7ff;
  --accent2:#a78bfa;
  --shadow: 0 18px 60px rgba(0,0,0,.45);
  --radius: 18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 12% 10%, rgba(110,231,255,.18), transparent 60%),
    radial-gradient(900px 600px at 80% 20%, rgba(167,139,250,.18), transparent 55%),
    radial-gradient(800px 600px at 50% 85%, rgba(110,231,255,.10), transparent 60%),
    var(--bg);
  line-height:1.55;
}

a{color:inherit; text-decoration:none}
.container{width:min(1120px, 92vw); margin:0 auto}
.header{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(12px);
  background: rgba(11,18,32,.62);
  border-bottom:1px solid var(--line);
}
.nav{display:flex; align-items:center; justify-content:space-between; padding:14px 0}
.brand{display:flex; gap:12px; align-items:center}
.brand-mark{
  width:38px; height:38px; border-radius:12px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 10px 30px rgba(110,231,255,.18);
}
.brand-name{font-weight:700; letter-spacing:.2px}
.brand-tag{font-size:12px; color:var(--muted); margin-top:2px}

.nav-links{display:flex; gap:18px; align-items:center}
.nav-links a{font-size:14px; color:var(--muted)}
.nav-links a:hover{color:var(--text)}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 16px; border-radius:14px;
  font-weight:600; font-size:14px;
  border:1px solid transparent;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{transform: translateY(-1px)}
.btn.full{width:100%}
.btn-primary{
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color:#07101f;
}
.btn-secondary{
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.14);
}
.btn-ghost{
  background: transparent;
  border-color: rgba(255,255,255,.16);
  color: var(--text);
}

.hero{padding:56px 0 30px}
.hero-grid{display:grid; grid-template-columns: 1.15fr .85fr; gap:28px; align-items:start}
.pill{
  display:inline-flex; gap:10px; align-items:center;
  padding:8px 12px; border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--muted);
  font-size:13px;
}
h1{font-size:44px; line-height:1.08; margin:14px 0 12px; letter-spacing:-.6px}
.lead{font-size:17px; color:var(--muted); max-width:60ch}

.cta-row{display:flex; gap:12px; margin:18px 0 18px; flex-wrap:wrap}
.trust-row{display:flex; gap:14px; margin:12px 0 0; flex-wrap:wrap}
.trust-item{
  padding:12px 14px; border-radius:16px;
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  min-width: 120px;
}
.trust-num{font-weight:800; letter-spacing:.2px}
.trust-label{color:var(--muted); font-size:12px; margin-top:2px}
.fineprint{color:rgba(255,255,255,.55); font-size:12px; margin-top:10px}

.card{
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.preview{overflow:hidden}
.preview-top{
  display:flex; align-items:center; gap:8px;
  padding:12px 14px;
  border-bottom:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
}
.preview-dot{width:10px; height:10px; border-radius:99px; background: rgba(255,255,255,.22)}
.preview-title{margin-left:6px; color:var(--muted); font-size:13px}
.preview-body{padding:16px}
.preview-block{
  height:14px; border-radius:10px; background: rgba(255,255,255,.12);
  margin-bottom:10px;
}
.preview-block.short{width:65%}
.preview-grid{display:flex; flex-wrap:wrap; gap:10px; margin-top:14px}
.preview-chip{
  padding:8px 10px; font-size:12px; border-radius:999px;
  border:1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.78);
}
.preview-footer{display:flex; gap:10px; flex-wrap:wrap; margin-top:16px}
.badge{
  font-size:12px; padding:7px 10px; border-radius:999px;
  background: rgba(110,231,255,.10);
  border:1px solid rgba(110,231,255,.22);
  color: rgba(255,255,255,.86);
}

.note{padding:14px 16px; margin-top:14px}
.note-list{display:flex; flex-wrap:wrap; gap:10px; margin-top:10px}
.note-list span{
  font-size:12px; color:rgba(255,255,255,.78);
  padding:7px 10px; border-radius:999px;
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
}

.section{padding:56px 0}
.section.alt{
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0));
  border-top:1px solid rgba(255,255,255,.10);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.section-head{margin-bottom:18px}
.section-head h2{margin:0 0 6px; font-size:28px; letter-spacing:-.2px}
.section-head p{margin:0; color:var(--muted); max-width:72ch}

.grid{display:grid; gap:16px}
.grid.three{grid-template-columns: repeat(3, 1fr)}
.grid.two{grid-template-columns: repeat(2, 1fr)}

.course{padding:18px}
.course-top{display:flex; gap:14px; align-items:flex-start}
.course-icon{
  width:42px; height:42px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  font-weight:800;
  background: rgba(110,231,255,.12);
  border:1px solid rgba(110,231,255,.22);
}
h3{margin:0 0 6px; font-size:18px}
.muted{color:var(--muted)}
.bullets{margin:12px 0 0; padding-left:18px; color:rgba(255,255,255,.78)}
.bullets li{margin:8px 0}

.callout{
  margin-top:18px;
  padding:18px;
  display:flex; align-items:center; justify-content:space-between; gap:14px;
  border-radius: var(--radius);
  background: rgba(167,139,250,.10);
  border:1px solid rgba(167,139,250,.22);
}
.callout p{margin:6px 0 0}

.pricing .price{padding:18px}
.price-head{display:flex; align-items:baseline; justify-content:space-between; gap:10px}
.price-amount{font-size:34px; font-weight:800; margin:10px 0 10px}
.price-amount span{font-size:13px; font-weight:600; color:var(--muted); margin-left:6px}
.featured{
  border-color: rgba(110,231,255,.34);
  background: linear-gradient(180deg, rgba(110,231,255,.10), rgba(255,255,255,.05));
}
.mini{margin-top:12px}

.faq{padding:16px}
details summary{
  cursor:pointer;
  font-weight:700;
  list-style:none;
}
details summary::-webkit-details-marker{display:none}
details p{margin:10px 0 0; color:rgba(255,255,255,.78)}

.contact{padding:18px}
code{background: rgba(255,255,255,.08); padding:2px 6px; border-radius:8px; border:1px solid rgba(255,255,255,.12)}

.footer{
  display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap;
  margin-top:22px; padding-top:16px;
  border-top:1px solid rgba(255,255,255,.10);
}

@media (max-width: 980px){
  .hero-grid{grid-template-columns: 1fr}
  h1{font-size:38px}
}
@media (max-width: 820px){
  .grid.three{grid-template-columns: 1fr}
  .grid.two{grid-template-columns: 1fr}
  .nav-links{display:none}
}