:root{
  --midnight:#05091c; --navy:#0a1640; --royal:#1f5bff; --cyan:#33c0f5;
  --soft:#9fe4ff; --gold:#e6b94a; --ink:#e8eefc; --mute:#9fb0d6; --dim:#6f80a8;
  --glass:rgba(15,26,60,.42); --glass2:rgba(15,26,60,.6); --brd:rgba(120,160,255,.18); --brd2:rgba(120,160,255,.34);
  --radius:18px; --maxw:1180px;
  --fs:"Sora",system-ui,sans-serif; --fb:"Inter",system-ui,sans-serif; --fm:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0; font-family:var(--fb); color:var(--ink); overflow-x:hidden;
  background:
    radial-gradient(130% 90% at 80% -10%, rgba(51,192,245,.10), transparent 55%),
    radial-gradient(120% 90% at 0% 5%, rgba(31,91,255,.16), transparent 50%),
    linear-gradient(180deg,#070c22 0%, var(--midnight) 42%, #04030a 100%);
  background-attachment:fixed;}
a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}
h1,h2,h3,h4{font-family:var(--fs); letter-spacing:-.02em; margin:0}

#scene{position:fixed; inset:0; width:100vw; height:100vh; z-index:0; display:block}
.vignette{position:fixed; inset:0; z-index:1; pointer-events:none;
  background:radial-gradient(120% 120% at 50% 38%, transparent 52%, rgba(2,4,12,.78) 100%)}
.cursor{position:fixed; z-index:2; top:0; left:0; width:340px; height:340px; margin:-170px 0 0 -170px; border-radius:50%;
  pointer-events:none; background:radial-gradient(circle, rgba(51,192,245,.14), transparent 60%); mix-blend-mode:screen}
.content{position:relative; z-index:3}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 26px}

/* buttons */
.btn{display:inline-flex; align-items:center; gap:8px; font-family:var(--fs); font-weight:600; font-size:14.5px;
  padding:11px 20px; border-radius:999px; cursor:pointer; border:1px solid transparent; transition:transform .15s,box-shadow .25s,background .25s,border-color .25s; white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn--gold{background:linear-gradient(100deg,var(--gold),#cf9f33); color:#241a02; box-shadow:0 10px 30px -8px rgba(230,185,74,.5)}
.btn--royal{background:linear-gradient(100deg,var(--royal),#2f7bff); color:#fff; box-shadow:0 10px 30px -8px rgba(31,91,255,.55)}
.btn--ghost{background:rgba(255,255,255,.04); border-color:var(--brd); color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.09); border-color:var(--brd2)}
.btn--sm{padding:9px 16px; font-size:13.5px}
.btn .arr{transition:transform .2s}
.btn:hover .arr{transform:translateX(3px)}

/* header */
header{position:fixed; top:0; left:0; right:0; z-index:30; border-bottom:1px solid transparent; transition:background .35s,backdrop-filter .35s,border-color .35s}
header.solid{background:rgba(6,11,30,.74); backdrop-filter:blur(14px); border-color:var(--brd)}
.nav{display:flex; align-items:center; justify-content:space-between; height:72px}
.brand{display:flex; align-items:center; gap:11px; font-family:var(--fs); font-weight:800}
.brand img{width:40px; height:40px; filter:drop-shadow(0 4px 14px rgba(51,192,245,.4))}
.brand b{font-size:18px; line-height:1; display:block}
.brand small{display:block; font-family:var(--fm); font-weight:500; font-size:9.5px; letter-spacing:.42em; color:var(--cyan); text-transform:uppercase; margin-top:3px}
.menu{display:flex; align-items:center; gap:28px; font-size:14.5px}
.menu>a{color:var(--mute); transition:color .2s}
.menu>a:hover,.menu>a[aria-current=page]{color:#fff}
.burger{display:none; background:none; border:0; color:#fff; cursor:pointer; padding:6px}

@media(max-width:880px){
  .menu{position:fixed; inset:72px 0 auto 0; flex-direction:column; gap:6px; align-items:stretch; padding:16px 26px 24px;
    background:rgba(6,11,30,.96); backdrop-filter:blur(16px); border-bottom:1px solid var(--brd); transform:translateY(-130%); transition:transform .35s; z-index:29}
  .menu.open{transform:none}
  .menu>a{padding:13px 4px; border-bottom:1px solid rgba(120,160,255,.1)}
  .menu .btn{margin-top:10px; justify-content:center}
  .burger{display:block}
}

/* shared section bits */
section{position:relative; padding:110px 0}
.eyebrow{font-family:var(--fm); font-size:12px; letter-spacing:.3em; text-transform:uppercase; color:var(--cyan);
  display:flex; align-items:center; gap:12px; margin-bottom:18px}
.eyebrow::before{content:""; width:42px; height:1px; background:linear-gradient(90deg,var(--cyan),transparent)}
.shead{margin-bottom:46px; max-width:720px}
.shead h2{font-weight:700; font-size:clamp(30px,4vw,50px); margin-bottom:14px}
.shead p{color:var(--mute); font-size:17px; line-height:1.6; margin:0}
.shead.center{margin-left:auto; margin-right:auto; text-align:center}
.shead.center .eyebrow{justify-content:center}
.shead.center .eyebrow::before{display:none}
.lead{color:var(--mute); line-height:1.6}

/* hero */
.hero{min-height:100vh; display:flex; flex-direction:column; justify-content:center; padding-top:72px; position:relative}
.hero h1{font-weight:800; line-height:1.02; font-size:clamp(44px,7.2vw,102px); margin-bottom:24px; letter-spacing:-.03em}
.hero h1 .g{background:linear-gradient(105deg,var(--cyan) 10%,var(--soft) 45%,var(--gold) 95%); -webkit-background-clip:text; background-clip:text; color:transparent}
.hero p.lead{font-size:clamp(16px,1.5vw,20px); max-width:60ch; margin-bottom:32px}
.hero-cta{display:flex; gap:14px; flex-wrap:wrap}
.hero-tags{display:flex; flex-wrap:wrap; gap:10px; margin-top:38px}
.hero-tags span{font-family:var(--fm); font-size:12px; color:var(--mute); padding:7px 13px; border:1px solid var(--brd); border-radius:999px; background:rgba(255,255,255,.02)}
.scrollhint{position:absolute; bottom:28px; left:50%; transform:translateX(-50%); display:flex; flex-direction:column; align-items:center; gap:8px; color:var(--mute); font-family:var(--fm); font-size:10.5px; letter-spacing:.2em}
.mouse{width:22px; height:36px; border:1.6px solid var(--mute); border-radius:12px; position:relative}
.mouse::after{content:""; position:absolute; left:50%; top:7px; width:3px; height:7px; border-radius:2px; background:var(--cyan); transform:translateX(-50%); animation:wheel 1.6s ease-in-out infinite}
@keyframes wheel{0%{opacity:0;transform:translate(-50%,0)}30%{opacity:1}60%{opacity:1;transform:translate(-50%,8px)}100%{opacity:0;transform:translate(-50%,12px)}}

/* stats */
.stats{display:grid; grid-template-columns:repeat(4,1fr); gap:18px}
.stat{padding:26px 22px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--brd); backdrop-filter:blur(10px)}
.stat strong{display:block; font-family:var(--fs); font-weight:800; font-size:clamp(28px,3.4vw,44px);
  background:linear-gradient(120deg,#fff,var(--soft)); -webkit-background-clip:text; background-clip:text; color:transparent}
.stat span{color:var(--mute); font-size:13.5px; margin-top:6px; display:block}

/* tracks */
.tracks{display:grid; grid-template-columns:repeat(3,1fr); gap:20px}
.track{position:relative; padding:26px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--brd); backdrop-filter:blur(10px); overflow:hidden; transition:transform .3s,border-color .3s,box-shadow .3s; display:block}
.track::before{content:""; position:absolute; inset:0; opacity:0; transition:opacity .35s; background:radial-gradient(120% 120% at 100% 0%, rgba(51,192,245,.16), transparent 55%)}
.track:hover{transform:translateY(-6px); border-color:var(--brd2); box-shadow:0 24px 60px -24px rgba(31,91,255,.5)}
.track:hover::before{opacity:1}
.track .code{font-family:var(--fm); font-size:11px; letter-spacing:.16em; color:var(--cyan)}
.track h3{font-weight:600; font-size:21px; margin:14px 0 10px}
.track p{color:var(--mute); font-size:14.5px; line-height:1.55; margin:0 0 16px}
.track .cnt{font-family:var(--fm); font-size:12.5px; color:#fff; opacity:.55}

/* course cards grid */
.grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px}
.card{position:relative; padding:24px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--brd); backdrop-filter:blur(10px); overflow:hidden; transition:transform .3s,border-color .3s,box-shadow .3s; display:flex; flex-direction:column}
.card::before{content:""; position:absolute; inset:0; opacity:0; transition:opacity .35s; background:radial-gradient(120% 120% at 100% 0%, rgba(51,192,245,.14), transparent 55%); pointer-events:none}
.card:hover{transform:translateY(-6px); border-color:var(--brd2); box-shadow:0 24px 60px -24px rgba(31,91,255,.5)}
.card:hover::before{opacity:1}
.card .ctop{display:flex; justify-content:space-between; align-items:center; margin-bottom:14px}
.card .lvl{font-family:var(--fm); font-size:11.5px; color:var(--mute)}
.card h3{font-weight:600; font-size:19px; margin:0 0 8px; letter-spacing:-.01em}
.card .tag{color:var(--mute); font-size:14px; line-height:1.5; margin:0 0 16px; flex:1}
.card .meta{display:flex; gap:16px; color:var(--mute); font-size:12.5px; font-family:var(--fm)}
.card .meta b{color:#dce6ff; font-weight:600}
.card .stretch{position:absolute; inset:0}
.chip{display:inline-block; font-family:var(--fm); font-size:10.5px; letter-spacing:.12em; text-transform:uppercase; padding:5px 10px; border-radius:7px; background:rgba(51,192,245,.12); color:var(--soft); border:1px solid rgba(51,192,245,.2)}
.chip[data-c=foundation]{background:rgba(124,92,255,.14); color:#c3b4ff; border-color:rgba(124,92,255,.3)}
.chip[data-c=ai-data]{background:rgba(51,192,245,.12); color:var(--soft); border-color:rgba(51,192,245,.22)}
.chip[data-c=software]{background:rgba(31,91,255,.16); color:#a8c2ff; border-color:rgba(31,91,255,.32)}
.chip[data-c=creative]{background:rgba(230,185,74,.14); color:#f0d18a; border-color:rgba(230,185,74,.3)}
.chip[data-c=marketing]{background:rgba(236,72,153,.14); color:#f7a8d0; border-color:rgba(236,72,153,.3)}
.chip[data-c=finance]{background:rgba(34,197,123,.14); color:#8fe6bd; border-color:rgba(34,197,123,.3)}

/* filter bar */
.filterbar{display:flex; justify-content:space-between; gap:18px; flex-wrap:wrap; margin-bottom:26px}
.filters{display:flex; gap:10px; flex-wrap:wrap}
.filter{font-family:var(--fs); font-weight:600; font-size:13.5px; padding:9px 16px; border-radius:999px; cursor:pointer;
  background:rgba(255,255,255,.03); border:1px solid var(--brd); color:var(--mute); transition:all .2s}
.filter:hover{color:#fff; border-color:var(--brd2)}
.filter.on{background:#fff; color:var(--navy); border-color:#fff}
.search{position:relative; min-width:260px; flex:1; max-width:340px}
.search svg{position:absolute; left:14px; top:50%; transform:translateY(-50%); width:18px; height:18px; stroke:var(--mute); fill:none}
.search input{width:100%; padding:11px 14px 11px 42px; border-radius:999px; border:1px solid var(--brd); background:rgba(255,255,255,.03); color:#fff; font-family:var(--fb); font-size:14.5px; outline:none}
.search input:focus{border-color:var(--brd2)}
.search input::placeholder{color:var(--dim)}
.count{font-family:var(--fm); font-size:12.5px; color:var(--mute); margin:0 0 22px}
.empty{display:none; text-align:center; color:var(--mute); padding:50px 0}

/* features */
.feat{display:grid; grid-template-columns:repeat(3,1fr); gap:20px}
.fitem{padding:26px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--brd); backdrop-filter:blur(10px)}
.fitem .ic{width:46px; height:46px; border-radius:12px; display:grid; place-items:center; margin-bottom:16px; background:linear-gradient(135deg,rgba(31,91,255,.25),rgba(51,192,245,.15)); border:1px solid var(--brd)}
.fitem .ic svg{width:24px; height:24px; stroke:var(--soft); fill:none}
.fitem h3{font-weight:600; font-size:18px; margin:0 0 8px}
.fitem p{color:var(--mute); font-size:14px; line-height:1.55; margin:0}

/* steps */
.steps{display:grid; grid-template-columns:repeat(4,1fr); gap:20px}
.step{padding:24px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--brd); backdrop-filter:blur(10px)}
.step .n{font-family:var(--fm); font-size:13px; color:var(--cyan); letter-spacing:.1em}
.step h3{font-weight:600; font-size:18px; margin:12px 0 8px}
.step p{color:var(--mute); font-size:14px; line-height:1.55; margin:0}

/* cta band */
.cta-band{position:relative; overflow:hidden; text-align:center; padding:60px 32px; border-radius:26px;
  background:linear-gradient(135deg,rgba(31,91,255,.22),rgba(51,192,245,.10)); border:1px solid var(--brd); backdrop-filter:blur(10px)}
.cta-band h2{font-weight:700; font-size:clamp(28px,4vw,46px); margin-bottom:14px}
.cta-band p{color:var(--mute); max-width:56ch; margin:0 auto 26px; font-size:17px; line-height:1.6}
.cta-band .hero-cta{justify-content:center}

/* breadcrumb + course detail */
.crumb{font-family:var(--fm); font-size:12.5px; color:var(--dim); padding-top:96px}
.crumb a{color:var(--mute)} .crumb a:hover{color:#fff}
.cdetail{display:grid; grid-template-columns:1fr 360px; gap:40px; align-items:start}
.cdetail h1{font-weight:800; font-size:clamp(30px,4.4vw,52px); line-height:1.05}
.meta-row{display:flex; flex-wrap:wrap; gap:10px; margin:18px 0 24px}
.pill{font-family:var(--fm); font-size:12.5px; color:#dce6ff; padding:8px 14px; border-radius:999px; background:rgba(255,255,255,.03); border:1px solid var(--brd)}
.summary{font-size:18px; line-height:1.65; color:#c6d4f4; margin:0}
.block{margin-top:40px}
.block h2{font-weight:700; font-size:24px; margin-bottom:18px}
.skills{display:flex; flex-wrap:wrap; gap:10px}
.skills span{font-size:14px; color:#dce6ff; padding:8px 14px; border-radius:999px; background:rgba(51,192,245,.08); border:1px solid var(--brd)}
.skills.tools span{background:rgba(124,92,255,.1); border-color:rgba(124,92,255,.26); color:#cabfff}
.mods{display:flex; flex-direction:column; gap:10px; counter-reset:m}
.mod{border:1px solid var(--brd); border-radius:14px; background:var(--glass); overflow:hidden}
.mod summary{list-style:none; cursor:pointer; padding:18px 20px; display:flex; align-items:center; gap:16px; font-family:var(--fs); font-weight:600; font-size:16px}
.mod summary::-webkit-details-marker{display:none}
.mod summary::before{counter-increment:m; content:counter(m,decimal-leading-zero); font-family:var(--fm); font-size:12px; color:var(--cyan)}
.mod summary .plus{margin-left:auto; stroke:var(--mute); transition:transform .25s}
.mod[open] summary .plus{transform:rotate(45deg)}
.mod .items{padding:0 20px 18px 64px; display:flex; flex-wrap:wrap; gap:8px}
.mod .items span{font-size:13.5px; color:var(--mute); padding:6px 12px; border-radius:8px; background:rgba(255,255,255,.03); border:1px solid rgba(120,160,255,.12)}
.twocol{display:grid; grid-template-columns:1fr 1fr; gap:30px}
.lst{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:10px}
.lst li{position:relative; padding-left:22px; color:#c6d4f4; font-size:15px; line-height:1.5}
.lst li::before{content:""; position:absolute; left:0; top:9px; width:7px; height:7px; border-radius:2px; background:linear-gradient(135deg,var(--cyan),var(--royal))}
.enroll{position:sticky; top:96px; padding:28px; border-radius:var(--radius); background:var(--glass2); border:1px solid var(--brd); backdrop-filter:blur(14px)}
.enroll .code{font-family:var(--fm); font-size:12px; color:var(--cyan); letter-spacing:.1em}
.enroll h3{font-weight:700; font-size:20px; margin:10px 0 18px}
.enroll dl{margin:0 0 22px}
.enroll dl>div{display:flex; justify-content:space-between; padding:11px 0; border-bottom:1px dashed rgba(120,160,255,.14); font-size:14.5px}
.enroll dt{color:var(--mute)} .enroll dd{margin:0; color:#fff; font-weight:600; text-align:right}
.enroll .btn{width:100%; justify-content:center; margin-bottom:10px}
.note{font-size:12.5px; color:var(--dim); line-height:1.5; margin:14px 0 0}
.muted{color:var(--mute)}

/* prose (about) */
.prose{max-width:760px}
.prose p{color:#c6d4f4; font-size:16.5px; line-height:1.75; margin:0 0 18px}
.prose h2{font-weight:700; font-size:26px; margin:36px 0 14px}
.prose ul{padding-left:0; list-style:none; margin:0 0 18px}
.prose li{position:relative; padding-left:24px; color:#c6d4f4; font-size:16px; line-height:1.65; margin-bottom:10px}
.prose li::before{content:""; position:absolute; left:0; top:10px; width:8px; height:8px; border-radius:2px; background:linear-gradient(135deg,var(--cyan),var(--royal))}
.prose strong{color:#fff}
.valuegrid{display:grid; grid-template-columns:1fr 1fr; gap:20px}
.v{padding:26px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--brd); backdrop-filter:blur(10px)}
.v h3{font-weight:600; font-size:19px; margin:0 0 10px}
.v p{color:var(--mute); font-size:14.5px; line-height:1.6; margin:0}

/* contact */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:24px; align-items:stretch}
.cinfo{padding:30px; border-radius:var(--radius); background:var(--glass); border:1px solid var(--brd); backdrop-filter:blur(12px)}
.cinfo .row{display:flex; gap:16px; align-items:flex-start; padding:16px 0; border-bottom:1px solid rgba(120,160,255,.12)}
.cinfo .row:first-child{padding-top:0} .cinfo .row:last-child{border-bottom:0}
.cinfo .ic{width:42px; height:42px; flex:none; border-radius:11px; display:grid; place-items:center; background:rgba(51,192,245,.1); border:1px solid var(--brd)}
.cinfo .ic svg{width:20px; height:20px; stroke:var(--soft); fill:none}
.cinfo .lbl{font-family:var(--fm); font-size:10.5px; letter-spacing:.16em; text-transform:uppercase; color:var(--mute); margin-bottom:4px}
.cinfo .val{font-size:15.5px; color:#fff; font-weight:500; line-height:1.45}
a.val:hover{color:var(--soft)}
.cinfo .cta-row{display:flex; flex-wrap:wrap; gap:12px; margin-top:22px}
.cinfo .cta-row .btn{flex:1; min-width:170px; justify-content:center}
.mapwrap{border-radius:var(--radius); overflow:hidden; border:1px solid var(--brd); min-height:420px; background:#0b1430}
.mapwrap iframe{width:100%; height:100%; min-height:420px; border:0; filter:saturate(1.1) contrast(1.02)}

/* footer */
footer{position:relative; z-index:3; border-top:1px solid var(--brd); padding:54px 0 30px; margin-top:20px}
.ft-top{display:grid; grid-template-columns:2fr 1fr 1fr 1.3fr; gap:30px}
.ft .brand{margin-bottom:14px}
.ft .blurb{color:var(--mute); font-size:14px; line-height:1.6; max-width:34ch; margin:0 0 16px}
.ft h4{font-family:var(--fm); font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--dim); margin:0 0 14px}
.ft ul{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:9px}
.ft a{color:var(--mute); font-size:14px} .ft a:hover{color:#fff}
.ft .socials{display:flex; gap:10px}
.ft .socials a{width:38px; height:38px; border-radius:10px; display:grid; place-items:center; background:rgba(255,255,255,.03); border:1px solid var(--brd)}
.ft .socials svg{width:18px; height:18px; fill:var(--mute)} .ft .socials a:hover svg{fill:#fff}
.ft-bot{display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; margin-top:40px; padding-top:24px; border-top:1px solid rgba(120,160,255,.1); color:var(--dim); font-size:13px}

/* reveal */
.reveal{opacity:0; transform:translateY(26px); transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1; transform:none}

@media(max-width:980px){
  .cdetail{grid-template-columns:1fr; gap:30px}
  .enroll{position:static}
  .ft-top{grid-template-columns:1fr 1fr}
}
@media(max-width:880px){
  .tracks,.grid,.feat{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .tracks,.grid,.feat,.stats,.steps,.twocol,.valuegrid{grid-template-columns:1fr}
  section{padding:80px 0}
  .ft-top{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){.reveal{transition:none; opacity:1; transform:none}}
*:focus-visible{outline:2px solid var(--cyan); outline-offset:3px; border-radius:6px}