:root{
  --bg:#0b1026;--bg-2:#111737;--ink:#0f172a;--text:#e8ecff;--muted:#9aa5c8;
  --primary:#6d5df6;--primary-2:#8b7bff;--accent:#22d3ee;--green:#34d399;
  --card:#151d42;--line:rgba(255,255,255,.08);--radius:18px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
h1,h2,h3,h4{font-family:'Sora',sans-serif;line-height:1.15}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{width:min(1150px,92%);margin:0 auto}
b{font-weight:600}

/* ---------- NAV ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;backdrop-filter:blur(14px);background:rgba(11,16,38,.75);border-bottom:1px solid var(--line);transition:.3s}
.nav.scrolled{background:rgba(11,16,38,.95)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--accent));display:grid;place-items:center;font-family:'Sora';font-weight:800;color:#fff;font-size:20px;flex:none}
.logo-text{font-family:'Sora';font-weight:700;font-size:1.1rem;display:flex;flex-direction:column;line-height:1.1}
.logo-sub{font-family:'Inter';font-weight:500;font-size:.6rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a{font-size:.9rem;color:var(--muted);transition:.2s}
.nav-links a:hover{color:#fff}
.nav-cta{background:linear-gradient(135deg,var(--primary),var(--accent));padding:9px 20px;border-radius:99px;color:#fff!important;font-weight:600}
.hamburger{display:none;background:none;border:none;color:#fff;font-size:1.6rem;cursor:pointer}

/* ---------- HERO ---------- */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;padding:130px 0 80px}
.hero-bg{position:absolute;inset:0;background:
  radial-gradient(600px 400px at 15% 20%,rgba(109,93,246,.25),transparent 60%),
  radial-gradient(700px 500px at 85% 80%,rgba(34,211,238,.15),transparent 60%);}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center;position:relative}
.pill{display:inline-block;padding:7px 16px;border:1px solid var(--line);border-radius:99px;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);background:rgba(34,211,238,.06);margin-bottom:22px}
.hero h1{font-size:clamp(2.1rem,4.4vw,3.4rem);font-weight:800;margin-bottom:20px}
.grad{background:linear-gradient(90deg,var(--primary-2),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{color:var(--muted);font-size:1.05rem;max-width:560px;margin-bottom:30px}
.lead b,.lead-sm b{color:var(--text)}
.lead-sm{color:var(--muted);font-size:1rem;margin-bottom:22px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.btn{padding:13px 28px;border-radius:99px;font-weight:600;font-size:.95rem;transition:.25s;display:inline-block}
.btn-sm{padding:10px 22px;font-size:.88rem}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 10px 30px rgba(109,93,246,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(109,93,246,.5)}
.btn-ghost{border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary-2)}
.loop-label{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.loop-steps{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:10px}
.loop-steps span{padding:6px 14px;background:var(--card);border:1px solid var(--line);border-radius:99px;font-size:.8rem;font-weight:600}
.loop-steps i{color:var(--accent);font-style:normal}

.hero-art{display:flex;justify-content:center}
.hero-img-wrap{position:relative;width:100%;max-width:520px}
.hero-img-wrap img{border-radius:24px;border:1px solid var(--line);box-shadow:0 30px 70px rgba(0,0,0,.5);aspect-ratio:16/10;object-fit:cover}
.img-badge{position:absolute;padding:9px 16px;border-radius:99px;background:rgba(13,19,48,.9);border:1px solid var(--line);font-size:.8rem;font-weight:600;backdrop-filter:blur(8px);animation:float 5s ease-in-out infinite}
.badge-tl{top:-16px;left:-14px}
.badge-br{bottom:-16px;right:-14px;animation-delay:1.4s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ---------- STATS ---------- */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:34px 0}
.stat{text-align:center}
.stat b{font-family:'Sora';font-size:1.9rem;background:linear-gradient(90deg,var(--primary-2),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{display:block;color:var(--muted);font-size:.84rem;margin-top:4px}

/* ---------- SECTIONS ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-2)}
.section-head{max-width:740px;margin-bottom:52px}
.eyebrow{display:inline-block;font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:14px;font-weight:600}
.eyebrow.light{color:#a5f3fc}
.section-head h2{font-size:clamp(1.7rem,3.2vw,2.4rem);margin-bottom:16px}
.section-head p{color:var(--muted)}

/* split layout with images */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-img{position:relative}
.split-img img{border-radius:22px;border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.45);aspect-ratio:16/11;object-fit:cover;width:100%}
.split-img figcaption{margin-top:12px;font-size:.82rem;color:var(--muted);text-align:center}
.chip-grid{display:flex;flex-wrap:wrap;gap:10px}
.chip-grid span{padding:9px 16px;border-radius:99px;background:var(--card);border:1px solid var(--line);font-size:.85rem;font-weight:600;transition:.25s}
.chip-grid span:hover{border-color:var(--primary-2)}
.small-chips span{padding:6px 13px;font-size:.78rem}

/* cards */
.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:.3s}
.card:hover{transform:translateY(-6px);border-color:rgba(139,123,255,.5);box-shadow:0 20px 44px rgba(0,0,0,.35)}
.card h3{font-size:1.15rem;margin:12px 0 10px}
.card-icon{font-size:2rem}
.mini-list{list-style:none}
.mini-list li{color:var(--muted);font-size:.88rem;padding:4px 0 4px 18px;position:relative}
.mini-list li::before{content:"›";position:absolute;left:2px;color:var(--accent);font-weight:700}

/* products */
.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.product-card{background:var(--card);border:1px solid var(--line);border-radius:22px;overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-6px);box-shadow:0 24px 54px rgba(0,0,0,.4)}
.product-img img{aspect-ratio:16/9;object-fit:cover;width:100%}
.product-body{padding:28px;display:flex;flex-direction:column;gap:12px;align-items:flex-start;flex:1}
.product-body h3{font-size:1.5rem}
.product-sub{color:var(--primary-2);font-weight:600;font-size:.92rem;margin-top:-8px}
.product-body p{color:var(--muted);font-size:.92rem}
.product-tag{align-self:flex-start;padding:5px 14px;border-radius:99px;background:rgba(109,93,246,.2);border:1px solid rgba(139,123,255,.45);font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.product-tag.green{background:rgba(52,211,153,.14);border-color:rgba(52,211,153,.4)}
.badge-meta{padding:8px 16px;border-radius:12px;background:rgba(52,211,153,.12);border:1px solid rgba(52,211,153,.35);font-size:.85rem;font-weight:600}

/* contrast (problem) */
.contrast{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;align-items:stretch}
.contrast-old,.contrast-new{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.contrast-new{border-color:rgba(52,211,153,.4);background:linear-gradient(135deg,rgba(52,211,153,.08),rgba(34,211,238,.06))}
.contrast-label{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700}
.contrast-flow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:16px 0}
.contrast-flow span{padding:8px 16px;background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:12px;font-family:'Sora';font-weight:600;font-size:.92rem}
.contrast-flow .hl{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border:none}
.contrast-flow i{color:var(--accent);font-style:normal}
.contrast p{color:var(--muted);font-size:.92rem}
.contrast-arrow{display:grid;place-items:center;font-size:2rem;color:var(--accent)}

/* signals */
.signals-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.signal{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.3s}
.signal:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.5)}
.signal b{display:block;font-family:'Sora';font-size:1rem;margin-bottom:8px}
.signal span{color:var(--muted);font-size:.86rem}
.signals-note{text-align:center;margin-top:36px;color:var(--muted)}
.signals-note b{color:var(--text)}

/* vertical flow */
.split-flow{display:flex;justify-content:center}
.flow-v{display:flex;flex-direction:column;gap:0;width:100%;max-width:460px}
.fv-item{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 20px;font-size:.92rem;font-weight:500;position:relative;margin-bottom:26px}
.fv-item:not(:last-child)::after{content:"↓";position:absolute;left:50%;transform:translateX(-50%);bottom:-24px;color:var(--accent);font-size:1rem}
.fv-item.hl{border-color:rgba(52,211,153,.5);background:linear-gradient(135deg,rgba(52,211,153,.12),rgba(34,211,238,.08))}
.tutor-flow{margin:22px 0}
.mini-loop{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:center;margin-top:40px}
.mini-loop span{padding:8px 18px;border-radius:99px;background:var(--card);border:1px solid var(--line);font-family:'Sora';font-weight:600;font-size:.88rem}
.mini-loop i{color:var(--accent);font-style:normal}

/* adaptive */
.students-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:44px}
.stu{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.3s}
.stu:hover{transform:translateY(-5px);border-color:rgba(139,123,255,.5)}
.stu-tag{display:inline-block;padding:4px 12px;border-radius:99px;background:rgba(109,93,246,.2);font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:12px}
.stu p{color:var(--muted);font-size:.9rem;margin-bottom:12px}
.stu b{color:var(--green);font-size:.88rem;font-weight:600}
.adaptive-loop{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:center}
.adaptive-loop span{padding:9px 18px;background:var(--card);border:1px solid var(--line);border-radius:99px;font-size:.86rem;font-weight:600}
.adaptive-loop .hl{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border:none}
.adaptive-loop i{color:var(--accent);font-style:normal}

/* ways */
.ways-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.way{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s}
.way:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(0,0,0,.35)}
.way-img img{aspect-ratio:16/9;object-fit:cover;width:100%}
.way h4{padding:18px 22px 6px;font-size:1.02rem}
.way ul{list-style:none;padding:0 22px 22px}
.way li{color:var(--muted);font-size:.86rem;padding:3px 0 3px 18px;position:relative}
.way li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700;font-size:.78rem}

/* big loop */
.big-loop{max-width:520px;margin:0 auto;display:flex;flex-direction:column;align-items:center}
.bl-row{display:flex;flex-direction:column;align-items:center}
.bl-row i{color:var(--accent);font-style:normal;margin:6px 0;line-height:1}
.bl-node{padding:11px 26px;background:var(--card);border:1px solid var(--line);border-radius:99px;font-family:'Sora';font-weight:600;font-size:.92rem;white-space:nowrap}
.bl-node.hl{border-color:rgba(52,211,153,.5);background:linear-gradient(135deg,rgba(52,211,153,.14),rgba(34,211,238,.1))}

/* vision */
.vision{background:radial-gradient(800px 500px at 50% 0%,rgba(109,93,246,.18),transparent 65%),var(--bg)}
.vision-inner{max-width:840px;margin:0 auto;text-align:center}
.vision-inner h2{font-size:clamp(1.7rem,3.4vw,2.6rem);margin-bottom:26px}
.vision-inner s{color:var(--muted);opacity:.75;text-decoration-color:rgba(255,120,120,.7)}
.vision-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:34px}
.vision-chips span{padding:8px 18px;border-radius:99px;background:var(--card);border:1px solid var(--line);font-size:.84rem;font-weight:600}
.vision-inner blockquote{font-size:1.15rem;font-style:italic;color:var(--text);border-left:3px solid var(--accent);padding:6px 0 6px 22px;text-align:left;max-width:640px;margin:0 auto 28px}
.vision-tagline{font-family:'Sora';font-size:1.05rem}
.vision-tagline.sub{color:var(--muted);margin-top:10px;font-size:.92rem}
.vision-tagline b{color:var(--accent)}

/* timeline */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.t-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px}
.t-dot{width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px rgba(34,211,238,.15);margin-bottom:18px}
.t-tag{display:inline-block;padding:4px 14px;border-radius:99px;background:rgba(109,93,246,.2);font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.t-item ul{list-style:none}
.t-item li{color:var(--muted);font-size:.9rem;padding:5px 0 5px 22px;position:relative}
.t-item li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}

/* invest */
  .hidden {
            display: none;
        }
.invest{background:linear-gradient(180deg,var(--bg-2),#0d1440);position:relative;overflow:hidden}
.invest::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 400px at 80% 10%,rgba(109,93,246,.22),transparent 60%)}
.invest .container{position:relative}
.invest-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-bottom:52px}
.invest-card{background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px;display:flex;flex-direction:column;gap:8px;transition:.3s}
.invest-card:hover{transform:translateY(-5px);border-color:rgba(139,123,255,.5)}
.invest-card b{font-family:'Sora';font-size:.95rem}
.invest-card span{color:var(--muted);font-size:.8rem}
.fin{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius);padding:34px;margin-bottom:44px}
.fin h3{margin-bottom:24px}
.fin-bars{display:grid;gap:18px}
.fin-bar{display:grid;grid-template-columns:170px 1fr 110px;gap:16px;align-items:center}
.fin-label{color:var(--muted);font-size:.88rem}
.fin-bar b{font-family:'Sora';font-size:.9rem;text-align:right;color:var(--accent)}
.bar{height:12px;background:rgba(255,255,255,.07);border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.small{font-size:.8rem;color:var(--muted)}
.fin .small{margin-top:16px}
.cta-box{text-align:center;background:linear-gradient(135deg,rgba(109,93,246,.25),rgba(34,211,238,.12));border:1px solid rgba(139,123,255,.4);border-radius:24px;padding:52px 30px}
.cta-box h3{font-size:clamp(1.4rem,2.6vw,2rem);margin-bottom:24px}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(0,0,0,.35)}

/* footer */
.footer{border-top:1px solid var(--line);padding:60px 0 0;background:#090e21}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer p{color:var(--muted);font-size:.9rem;margin-top:14px;max-width:360px}
.footer-col{display:flex;flex-direction:column;gap:10px}
.footer-col b{font-family:'Sora';margin-bottom:6px}
.footer-col a{color:var(--muted);font-size:.9rem;transition:.2s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;text-align:center}
.footer-bottom p{font-size:.82rem;margin:0 auto}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* responsive */
@media(max-width:1020px){
  .hero-inner{grid-template-columns:1fr}
  .hero-art{order:-1}
  .hero-img-wrap{max-width:560px}
  .cards-4,.signals-grid,.students-grid{grid-template-columns:1fr 1fr}
  .ways-grid{grid-template-columns:1fr 1fr}
  .invest-grid{grid-template-columns:1fr 1fr 1fr}
  .contrast{grid-template-columns:1fr}
  .contrast-arrow{transform:rotate(90deg)}
}
@media(max-width:760px){
  .split{grid-template-columns:1fr;gap:36px}
  .product-grid,.timeline{grid-template-columns:1fr}
  .nav-links{position:fixed;top:66px;right:-100%;flex-direction:column;background:#0d1330;width:min(300px,80%);height:calc(100vh - 66px);padding:34px;gap:22px;transition:right .3s;border-left:1px solid var(--line);align-items:flex-start}
  .nav-links.open{right:0}
  .hamburger{display:block}
}
@media(max-width:600px){
  .cards-4,.signals-grid,.students-grid,.ways-grid,.invest-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:22px}
  .fin-bar{grid-template-columns:1fr;gap:8px}
  .fin-bar b{text-align:left}
  .section{padding:70px 0}
  .hero{padding-top:110px}
  .bl-node{white-space:normal;text-align:center}
}