:root{
  --bg:#0b1020;
  --panel: rgba(255,255,255,.06);
  --panel2: rgba(255,255,255,.10);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.70);
  --muted2: rgba(255,255,255,.56);
  --border: rgba(255,255,255,.12);
  --shadow: 0 22px 55px rgba(0,0,0,.35);
  --radius: 18px;
  --radius2: 26px;
  --accent1:#7c3aed;
  --accent2:#22c55e;
  --accent3:#06b6d4;
  --accent4:#f59e0b;
  --danger:#ef4444;
  --max:1180px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:
    radial-gradient(1200px 800px at 10% -10%, rgba(124,58,237,.45), transparent 60%),
    radial-gradient(900px 700px at 95% 0%, rgba(6,182,212,.35), transparent 55%),
    radial-gradient(1100px 900px at 70% 105%, rgba(34,197,94,.22), transparent 60%),
    linear-gradient(180deg, #070a14 0%, #090e1d 40%, #070a14 100%);
  min-height:100vh;
}

a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}
.container{width:min(var(--max), calc(100% - 40px)); margin:0 auto}

.topbar{
  position:sticky; top:0; z-index:40;
  backdrop-filter: blur(18px);
  background: rgba(7,10,20,.55);
  border-bottom: 1px solid var(--border);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
}
.brand{
  display:flex; align-items:center; gap:10px;
  letter-spacing:.2px;
  font-weight:800;
}
.logo{
  width:34px; height:34px; border-radius:12px;
  background:
    radial-gradient(14px 14px at 30% 30%, rgba(255,255,255,.9), transparent 60%),
    linear-gradient(135deg, var(--accent1), var(--accent3));
  box-shadow: 0 12px 30px rgba(124,58,237,.25);
  position:relative;
}
.logo:after{
  content:"";
  position:absolute; inset:8px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.35);
  background: rgba(255,255,255,.08);
}

.navlinks{
  display:flex; align-items:center; gap:18px;
  font-weight:600; color:var(--muted);
}
.navlinks a{
  padding:10px 10px;
  border-radius:12px;
  transition: background .2s, color .2s, transform .2s;
}
.navlinks a:hover{ background: rgba(255,255,255,.08); color:var(--text); transform: translateY(-1px); }

.actions{
  display:flex; align-items:center; gap:10px;
}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.06);
  color:var(--text);
  padding:11px 14px;
  border-radius:14px;
  font-weight:700;
  cursor:pointer;
  transition: transform .2s, background .2s, border-color .2s;
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
}
.btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.10); border-color: rgba(255,255,255,.18); }
.btn.primary{
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent1), var(--accent3));
}
.btn.primary:hover{ filter: brightness(1.05); }
.btn.ghost{
  box-shadow:none;
  background: transparent;
}
.btn.small{ padding:9px 12px; border-radius:12px; font-weight:700; }
.badge{
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--muted);
  font-weight:700;
  font-size:13px;
}

.hamburger{ display:none; width:42px; height:42px; border-radius:14px; }
.hamburger span{ width:18px; height:2px; background: rgba(255,255,255,.85); display:block; border-radius:2px; position:relative;}
.hamburger span:before,.hamburger span:after{content:""; position:absolute; left:0; width:18px; height:2px; background: rgba(255,255,255,.85); border-radius:2px;}
.hamburger span:before{ top:-6px;} .hamburger span:after{ top:6px;}

.mobilemenu{
  display:none;
  padding: 0 0 14px 0;
}
.mobilemenu a{
  display:block;
  padding: 12px 10px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.04);
  margin-top:8px;
  color: var(--muted);
  font-weight:700;
}
.mobilemenu a:hover{ background: rgba(255,255,255,.08); color: var(--text); }

.hero{
  padding: 34px 0 20px 0;
}
.heroGrid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 22px;
  align-items:stretch;
}
.heroCard{
  position:relative;
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  overflow:hidden;
  background: rgba(255,255,255,.04);
  box-shadow: var(--shadow);
  padding: 26px;
}
.heroCard:before{
  content:"";
  position:absolute; inset:-1px;
  background:
    radial-gradient(1000px 500px at 20% 0%, rgba(124,58,237,.28), transparent 65%),
    radial-gradient(800px 520px at 110% 10%, rgba(6,182,212,.25), transparent 60%),
    radial-gradient(900px 500px at 30% 120%, rgba(34,197,94,.18), transparent 65%);
  pointer-events:none;
}
.heroInner{ position:relative; z-index:1; }

.heroTitle{
  font-size: clamp(30px, 4.2vw, 50px);
  line-height: 1.05;
  margin: 12px 0 12px 0;
  letter-spacing: -.8px;
}
.heroText{
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
  max-width: 58ch;
}
.heroMedia{
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  overflow:hidden;
  background: rgba(255,255,255,.04);
  box-shadow: var(--shadow);
  position:relative;
  min-height: 330px;
}
.heroMedia img{
  width:100%; height:100%; object-fit:cover;
  filter: saturate(1.1) contrast(1.05);
}
.heroMedia:after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(7,10,20,0) 30%, rgba(7,10,20,.75) 100%);
}
.heroStats{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 10px;
  margin-top: 18px;
}
.stat{
  padding: 14px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}
.stat b{ font-size: 18px; }
.stat span{ display:block; color: var(--muted2); font-weight:700; margin-top: 4px; font-size: 13px; }

.section{ padding: 26px 0; }
.sectionHead{
  display:flex; align-items:flex-end; justify-content:space-between; gap:12px;
  margin-bottom: 14px;
}
.sectionHead h2{
  margin:0;
  font-size: 24px;
  letter-spacing: -.2px;
}
.sectionHead p{
  margin:0;
  color: var(--muted);
  max-width: 70ch;
  line-height:1.55;
}

.grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px;
}
.card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.04);
  overflow:hidden;
  box-shadow: 0 18px 48px rgba(0,0,0,.25);
  transition: transform .18s, border-color .2s, background .2s;
}
.card:hover{
  transform: translateY(-3px);
  border-color: rgba(255,255,255,.18);
  background: rgba(255,255,255,.06);
}
.cardMedia{ height: 160px; position:relative; overflow:hidden; }
.cardMedia img{ width:100%; height:100%; object-fit:cover; }
.cardMedia:after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(7,10,20,0) 35%, rgba(7,10,20,.70) 100%);
}
.cardBody{ padding: 16px; }
.cardBody h3{ margin:0 0 6px 0; font-size: 18px; }
.meta{ color: var(--muted2); font-weight:700; font-size: 13px; }
.pills{ display:flex; flex-wrap:wrap; gap:8px; margin-top: 12px;}
.pill{ padding:7px 10px; border-radius: 999px; border: 1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.05); color: var(--muted); font-weight:700; font-size: 12px; }
.cardActions{ display:flex; gap:10px; margin-top: 14px; }

.panel{
  border:1px solid var(--border);
  border-radius: var(--radius2);
  background: rgba(255,255,255,.04);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.panelPad{ padding: 18px; }
.split{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 14px;
}

.kbd{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  color: rgba(255,255,255,.75);
  padding: 5px 8px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
}

.list{
  margin: 0; padding: 0; list-style:none;
}
.list li{
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.10);
  color: var(--muted);
  line-height: 1.55;
}
.list li:last-child{ border-bottom:none; }

.pricing{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
  margin-top: 10px;
}
.priceCard{
  border:1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  background: rgba(255,255,255,.04);
  padding: 16px;
  position:relative;
  overflow:hidden;
}
.priceCard.featured{
  border-color: rgba(124,58,237,.6);
  box-shadow: 0 18px 60px rgba(124,58,237,.18);
}
.priceCard h4{ margin: 0 0 4px 0; font-size: 16px; }
.price{ font-size: 30px; font-weight:900; letter-spacing:-.4px; }
.sub{ color: var(--muted2); font-weight:700; font-size: 13px; margin-top: 2px; }
.priceCard ul{ margin: 12px 0 0 0; padding-left: 18px; color: var(--muted); line-height:1.6; }
.priceCard .btn{ margin-top: 12px; width: 100%; }

.breadcrumbs{
  display:flex; align-items:center; gap:10px;
  color: var(--muted2);
  font-weight:700;
  font-size: 13px;
  margin-top: 6px;
}
.breadcrumbs a{ color: var(--muted); }
.breadcrumbs a:hover{ color: var(--text); }

.courseHero{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 14px;
  align-items:stretch;
  padding: 18px;
}
.courseHero img{
  width:100%; height:100%;
  max-height: 360px;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.10);
}
.courseHero h1{ margin: 8px 0 8px 0; font-size: 34px; letter-spacing:-.6px;}
.courseHero p{ margin: 0; color: var(--muted); line-height:1.7; }

.content{
  padding: 18px;
  color: var(--muted);
  line-height: 1.75;
}
.content h2{ color: var(--text); margin: 18px 0 8px 0; letter-spacing:-.2px;}
.content h3{ color: var(--text); margin: 16px 0 8px 0; }
.content p{ margin: 0 0 12px 0; }
.content .twoCol{ display:grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.quote{
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  color: rgba(255,255,255,.84);
  font-weight:700;
  line-height: 1.6;
}

.form{
  display:grid; gap: 10px;
}
.field label{ display:block; font-weight:800; font-size: 13px; margin-bottom: 6px; color: rgba(255,255,255,.88);}
.field input, .field textarea, .field select{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.05);
  color: var(--text);
  outline:none;
}
.field textarea{ min-height: 140px; resize: vertical; }
.helper{ color: var(--muted2); font-weight:700; font-size: 13px; line-height:1.5; }

.toast{
  position: fixed;
  bottom: 18px; left: 50%; transform: translateX(-50%);
  background: rgba(15, 23, 42, .90);
  border: 1px solid rgba(255,255,255,.14);
  padding: 12px 14px;
  border-radius: 14px;
  box-shadow: var(--shadow);
  display:none;
  z-index:60;
}
.toast.show{ display:block; animation: pop .22s ease-out; }
@keyframes pop{ from{ transform: translateX(-50%) translateY(10px); opacity:.2 } to{ transform: translateX(-50%) translateY(0); opacity:1 } }

.footer{
  border-top:1px solid rgba(255,255,255,.10);
  margin-top: 26px;
  padding: 24px 0;
  color: var(--muted2);
}
.footerGrid{
  display:grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 14px;
}
.footer a:hover{ color: var(--text); }
.small{ font-size: 13px; color: var(--muted2); line-height:1.6; }
.footerLinks a{ display:block; padding: 7px 0; }

@media (max-width: 980px){
  .heroGrid{ grid-template-columns: 1fr; }
  .heroMedia{ min-height: 280px; }
  .grid{ grid-template-columns: 1fr 1fr; }
  .split{ grid-template-columns: 1fr; }
  .courseHero{ grid-template-columns: 1fr; }
  .courseHero img{ max-height: 320px; }
}
@media (max-width: 680px){
  .navlinks{ display:none; }
  .hamburger{ display:inline-flex; }
  .grid{ grid-template-columns: 1fr; }
  .pricing{ grid-template-columns: 1fr; }
  .heroStats{ grid-template-columns: 1fr; }
  .content .twoCol{ grid-template-columns: 1fr; }
  .footerGrid{ grid-template-columns: 1fr; }
  .container{ width: calc(100% - 28px); }
}