:root{
  --bg:#05070c;--bg2:#080e18;--navy:#0a1628;
  --cyan:#4fd2e8;--blue:#3d8bff;--violet:#7b6cff;--white:#eef5fc;--offwhite:#c8d8e8;
  --text:#d5e2ef;--muted:#6a8399;--line:rgba(79,210,232,.12);
  --glass:rgba(8,14,24,.78);--max:1180px;
  --cyan-glow:0 0 30px rgba(79,210,232,.12);
  --blue-glow:0 0 30px rgba(61,139,255,.10);
  --card:rgba(10,20,38,.65);--card2:rgba(14,26,48,.55);
  --accent2:#e3f49a;--green:#4ade80;--amber:#fbbf24;--red:#f87171;
  --nav-bg:rgba(5,7,12,.88);
}
html[data-theme="light"]{
  --bg:#f4f7fb;--bg2:#e8eef7;--navy:#0f1f33;
  --text:#0f1f33;--muted:#4a5f78;--line:rgba(15,31,51,.12);
  --glass:rgba(255,255,255,.85);--card:rgba(255,255,255,.92);--card2:rgba(240,245,252,.9);
  --white:#0f1f33;--cyan:#0e6a7e;--blue:#1e5fb8;--violet:#5a4bb8;
  --cyan-glow:0 0 24px rgba(14,106,126,.18);--blue-glow:0 0 24px rgba(30,95,184,.15);
  --accent2:#3d5a2a;--green:#1f6b3f;--amber:#a36c0f;--red:#b13a2f;
  --nav-bg:rgba(244,247,251,.92);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;background:var(--bg);color:var(--text);font:16px/1.62 Inter,ui-sans-serif,system-ui,"Segoe UI",sans-serif;overflow-x:hidden}
html[data-theme="light"] body{background:var(--bg);color:var(--text)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer}
.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}
.sec{padding:108px 0;position:relative}
.kicker{font-size:.68rem;letter-spacing:.24em;text-transform:uppercase;font-weight:800;color:var(--cyan);margin-bottom:8px}
h1,h2,h3{letter-spacing:-.04em;color:var(--white);margin:.4rem 0 1rem}
h2{font-size:clamp(2rem,4.8vw,4.2rem);line-height:.96}
h3{font-size:1.35rem;line-height:1.1}
.lede{max-width:42rem;color:var(--muted);font-size:1.05rem}
.muted{color:var(--muted)}
.note{font-size:.78rem;color:#5a7288}
strong{color:var(--white)}

/* Nav */
.nav{position:fixed;inset:0 0 auto;z-index:50;background:var(--nav-bg);backdrop-filter:blur(24px) saturate(1.4);border-bottom:1px solid var(--line)}
.navin{height:72px;display:flex;align-items:center;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;flex:0 0 auto}
.brand img{height:40px;width:134px;max-width:none;border-radius:0;object-fit:contain;object-position:left center;background:transparent}
.brand small{display:block;font-size:.58rem;color:var(--muted);letter-spacing:.12em}
.navlinks{display:flex;gap:14px;margin-left:auto;font-size:.78rem;color:var(--muted);flex-wrap:wrap}
.navlinks a{transition:color .2s}
.navlinks a:hover{color:var(--cyan)}
.menu{display:none;border:1px solid var(--line);background:transparent;color:var(--text);border-radius:999px;padding:7px 12px;font-weight:700}
.theme-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.06);color:var(--text);font-size:18px;line-height:1;cursor:pointer;transition:all .2s}
.theme-btn:hover{border-color:var(--cyan);color:var(--cyan)}
.progress{position:fixed;top:72px;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--blue),var(--cyan));z-index:60;box-shadow:0 0 14px var(--cyan)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 20px;border-radius:999px;border:1px solid var(--line);background:rgba(10,18,32,.6);color:var(--white);font-weight:700;transition:all .3s;font-size:.92rem}
.btn:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:var(--cyan-glow)}
.btn.primary{background:linear-gradient(135deg,#3d8bff,#2b6fe0);border-color:rgba(61,139,255,.5);color:#fff}
.btn.primary:hover{color:#fff;filter:brightness(1.15);box-shadow:var(--blue-glow)}
.btn.cyan{background:rgba(79,210,232,.12);border-color:rgba(79,210,232,.3);color:var(--cyan)}
.btn.cyan:hover{background:rgba(79,210,232,.2)}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}

/* Hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden;background:#05070c;color:#fff;isolation:isolate}
.hero-video{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.hero-video iframe{position:absolute;top:50%;left:50%;width:auto;height:100%;min-width:100%;aspect-ratio:16/9;border:0;transform:translate(-50%,-50%) scale(1.6);pointer-events:none}
.hero-shade{position:absolute;inset:0;z-index:1;background:linear-gradient(0deg,#05070c 0%,rgba(5,7,12,.35) 50%,rgba(5,7,12,.55) 100%)}
.hero .wrap{position:relative;z-index:2;padding:120px 0 60px}
.hero h1{font-size:clamp(2.4rem,6vw,5.2rem);line-height:.95;letter-spacing:-.05em;max-width:900px}
.hero h1 span{display:block;font-size:clamp(1rem,2.2vw,1.5rem);color:var(--offwhite);letter-spacing:-.01em;line-height:1.4;margin-top:18px;max-width:720px;font-weight:500}
.powered{font-size:.7rem;letter-spacing:.3em;color:var(--cyan);font-weight:800;margin-top:22px}
.meta-strip{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
.meta{padding:14px 18px;border-radius:14px;background:var(--card);border:1px solid var(--line);min-width:150px}
.meta b{display:block;color:var(--white);font-size:.95rem}
.meta span{font-size:.7rem;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}

/* Section head */
.sec-head{display:flex;justify-content:space-between;gap:40px;align-items:flex-end;margin-bottom:40px}
.sec-head p{max-width:420px;color:var(--muted);font-size:.95rem;margin:0}
.grid-bg{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:44px 44px;opacity:.4;mask-image:radial-gradient(ellipse at center,black 30%,transparent 75%)}

/* Cards */
.card{padding:24px;border-radius:16px;background:var(--card);border:1px solid var(--line)}
.arch-box{padding:24px;border-radius:16px;background:var(--card);border:1px solid var(--line)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.four{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}

/* Vision grid */
.vision-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.vision-card{padding:24px;border-radius:16px;background:var(--card);border:1px solid var(--line);transition:all .3s}
.vision-card:hover{border-color:var(--cyan);box-shadow:var(--cyan-glow);transform:translateY(-3px)}
.vision-card .icon{font-size:1.6rem;color:var(--cyan);margin-bottom:10px}
.vision-card h3{margin:0 0 6px;font-size:1.1rem}
.vision-card p{margin:0;color:var(--muted);font-size:.9rem}

/* Journey */
.journey{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.journey>div{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;min-height:120px}
.journey span{color:var(--cyan);font-weight:800;font-size:1.2rem}
.journey h3{margin:6px 0 0;font-size:1rem}

/* Flow / pipeline */
.flow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:16px}
.node{padding:10px 14px;border-radius:10px;border:1px solid var(--line);background:var(--card2);font-size:.8rem;font-weight:700;color:var(--white)}
.arrow{color:var(--cyan);font-weight:800}
.rss-pipeline{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.rss-step{padding:10px 14px;border-radius:10px;border:1px solid var(--line);background:var(--card2);font-size:.78rem;font-weight:700;color:var(--white)}
.rss-arrow{color:var(--cyan);font-weight:800}

/* Arch flow */
.arch-flow{display:grid;gap:10px}
.arch-step{padding:14px 16px;border-radius:12px;border:1px solid var(--line);background:var(--card2);font-weight:700;color:var(--white);display:flex;align-items:center;gap:10px}
.arch-step .sub{font-size:.62rem;color:var(--muted);letter-spacing:.14em;font-weight:800}
.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);flex:none;box-shadow:0 0 8px var(--cyan)}

/* Neural core */
.neural-core{position:relative;height:420px;border-radius:20px;border:1px solid var(--line);background:var(--card);overflow:hidden}
.neural-core canvas{position:absolute;inset:0;width:100%;height:100%}
.cluster-labels{position:absolute;inset:0;pointer-events:none}
.cluster-label{position:absolute;font-size:.62rem;letter-spacing:.2em;color:var(--cyan);font-weight:800}

/* Activity bar */
.activity-bar{padding:26px;border-radius:16px;background:var(--card);border:1px solid var(--line)}
.bar-track{height:10px;border-radius:999px;background:var(--card2);overflow:hidden;margin:16px 0}
.bar-fill{height:100%;width:74%;border-radius:999px;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:0 0 12px var(--cyan)}

/* Stats */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat-card{padding:22px;border-radius:16px;background:var(--card);border:1px solid var(--line);text-align:center}
.stat-card b{display:block;font-size:2.2rem;color:var(--cyan);font-weight:900;letter-spacing:-.04em}
.stat-card span{font-size:.72rem;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}

/* Product / family grid */
.family-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.family-card{padding:20px;border-radius:14px;background:var(--card);border:1px solid var(--line)}
.family-card h3{margin:0 0 6px;font-size:1rem}
.family-card p{margin:0;color:var(--muted);font-size:.85rem}

/* Institution grid */
.inst-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.inst-card{padding:18px;border-radius:14px;background:var(--card);border:1px solid var(--line);text-align:center}
.inst-card b{display:block;color:var(--white);font-size:1rem}
.inst-card span{font-size:.7rem;color:var(--muted)}

/* Media / article */
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.media-card{padding:20px;border-radius:14px;background:var(--card);border:1px solid var(--line)}
.media-card .article-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:8px;margin-bottom:12px;display:block}
.media-card h3{margin:0 0 6px;font-size:1rem}
.media-card p{margin:0;color:var(--muted);font-size:.85rem}

/* Roadmap */
.roadmap{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.phase{padding:22px;border-radius:16px;background:var(--card);border:1px solid var(--line)}
.phase-num{font-size:2rem;font-weight:900;color:var(--cyan);letter-spacing:-.04em}
.phase h3{margin:8px 0 10px}
.phase ul{margin:0;padding-left:18px;color:var(--muted);font-size:.85rem}
.phase li{margin:4px 0}

/* Transform */
.transform{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:stretch}
.panel{padding:26px;border-radius:16px;background:var(--card);border:1px solid var(--line)}
.panel ul{margin:0;padding-left:18px;color:var(--muted);font-size:.9rem}
.panel li{margin:5px 0}
.arrow-col{display:flex;align-items:center;color:var(--cyan);font-size:2rem;font-weight:900}

/* Final */
.sec.final{text-align:center}
.verbs{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:30px}
.verb{padding:12px 20px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--white);font-weight:800;font-size:.9rem}
.subline{color:var(--cyan);font-weight:800;letter-spacing:.1em;font-size:1.1rem}

/* Footer */
.footer-strip{padding:40px 0;border-top:1px solid var(--line);text-align:center;color:var(--muted);font-size:.8rem}

/* Reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.16,0,0,1),transform .7s cubic-bezier(.16,0,0,1)}
.reveal.in-view{opacity:1;transform:none}

/* Responsive */
@media(max-width:900px){
  .navlinks{display:none}
  .menu{display:block}
  .navlinks.open{display:flex;flex-direction:column;position:absolute;top:72px;left:0;right:0;background:var(--nav-bg);padding:16px;border-bottom:1px solid var(--line)}
  .two,.three,.four{grid-template-columns:1fr}
  .vision-grid,.family-grid,.media-grid,.inst-grid{grid-template-columns:1fr 1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .roadmap{grid-template-columns:1fr 1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px}
  .transform{grid-template-columns:1fr}
  .arrow-col{justify-content:center;transform:rotate(90deg)}
}
@media(max-width:560px){
  .vision-grid,.family-grid,.media-grid,.inst-grid,.stat-grid,.roadmap{grid-template-columns:1fr}
  .journey{grid-template-columns:1fr}
}