:root{--bg:#01050a;--line:rgba(150,221,245,.15);--cyan:#20e6ff;--white:#f7fbff;--muted:#c9d6e1;--orange:#ff9d18}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;color:var(--white);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at 57% 24%,rgba(15,125,180,.24),transparent 35%),radial-gradient(circle at 65% 70%,rgba(18,180,255,.12),transparent 34%),linear-gradient(180deg,#010307,#07131d 52%,#020509)}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:56px 56px;opacity:.6;mask-image:linear-gradient(#000,rgba(0,0,0,.55),transparent)}
.header{height:88px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(22px,4vw,58px);background:rgba(1,5,9,.92);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;backdrop-filter:blur(16px);overflow:hidden}
.brand{display:flex;align-items:center;gap:15px;color:inherit;text-decoration:none}.brand img{width:62px;height:82px;object-fit:contain}.brand strong{font-size:38px;line-height:.9;letter-spacing:.04em}.brand span span{display:block;margin-top:8px;color:var(--cyan);font-size:12px;font-weight:900;letter-spacing:.28em}
.nav{display:flex;gap:30px}.nav a{color:white;text-decoration:none;font-size:13px;font-weight:900;letter-spacing:.08em}.nav a:hover{color:var(--cyan)}
.hero{min-height:calc(100vh - 88px);display:grid;grid-template-columns:minmax(300px,.78fr) minmax(560px,1.34fr) minmax(290px,.68fr);gap:22px;align-items:center;padding:36px clamp(22px,4vw,58px) 20px}
.eyebrow{color:var(--cyan);font-size:14px;font-weight:950;letter-spacing:.3em;margin-bottom:26px}h1{font-size:clamp(60px,7.2vw,112px);line-height:.92;margin:0 0 26px;font-weight:1000;letter-spacing:.02em}.elev8{background:linear-gradient(100deg,#19dfff,#8df0ae 46%,#ff9d18);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 30px rgba(32,230,255,.15)}.copy{font-size:20px;line-height:1.55;color:#edf6ff;max-width:500px;margin:0 0 30px}.actions{display:flex;gap:14px;flex-wrap:wrap}.btn{border:1px solid rgba(32,230,255,.82);color:white;text-decoration:none;padding:14px 22px;border-radius:5px;font-weight:950;letter-spacing:.06em;background:rgba(0,221,255,.07);box-shadow:inset 0 0 20px rgba(32,230,255,.08)}.btn.secondary{border-color:rgba(255,255,255,.34);background:rgba(255,255,255,.03)}
.visual{position:relative;min-height:760px;display:grid;place-items:center;filter:drop-shadow(0 28px 50px rgba(0,0,0,.8));overflow:visible}.network{position:absolute;inset:-20px -80px auto -80px;height:520px;z-index:0;opacity:.98}.capstone{position:absolute;z-index:3;top:42px;width:min(430px,60%);filter:drop-shadow(0 0 28px rgba(32,230,255,.26))}.pyramid{position:absolute;z-index:2;top:268px;width:min(840px,96%);filter:drop-shadow(0 0 42px rgba(0,0,0,.8))}
.osi-label{position:absolute;z-index:4;bottom:18px;left:50%;transform:translateX(-50%);font-size:16px;font-weight:950;letter-spacing:.35em;text-align:center;color:#9cf2ff;text-shadow:0 0 12px rgba(32,230,255,.65);white-space:nowrap}
.services{border-left:1px solid var(--line);padding-left:30px}.service{display:grid;grid-template-columns:58px 1fr;gap:18px;padding:25px 0;border-bottom:1px solid var(--line)}.service .icon{font-size:42px;color:var(--cyan);filter:drop-shadow(0 0 12px rgba(32,230,255,.35));line-height:1}.service h3{margin:0 0 8px;color:var(--cyan);font-size:17px}.service p{margin:0;color:#d9e5ef;line-height:1.55}
.feature-bar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(0,0,0,.30)}.feature{display:flex;align-items:center;gap:18px;padding:24px clamp(20px,4vw,54px);border-right:1px solid var(--line)}.feature:last-child{border-right:0}.feature img{width:62px;height:82px;object-fit:contain}.feature .inf{font-size:48px;color:var(--cyan);line-height:1}.feature b{display:block}.feature span{color:#ccd8e2}
.section{padding:70px clamp(22px,4vw,58px);display:grid;grid-template-columns:.72fr 1.28fr;gap:40px}.section h2{font-size:clamp(34px,4vw,58px);line-height:1;margin:0 0 20px}.section p{color:#cfd9e3;line-height:1.7;font-size:18px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:0 0 34px rgba(32,230,255,.08)}.card h3{color:var(--cyan);margin-top:0}
footer{padding:32px clamp(22px,4vw,58px);border-top:1px solid var(--line);color:#7f8c98;font-size:13px;letter-spacing:.12em}
@media(max-width:1180px){.hero{grid-template-columns:1fr}.visual{min-height:760px}.services{border-left:0;padding-left:0;display:grid;grid-template-columns:repeat(2,1fr);gap:0 24px}.feature-bar{grid-template-columns:repeat(2,1fr)}.section,.cards{grid-template-columns:1fr}}
@media(max-width:720px){.nav{display:none}.brand strong{font-size:29px}.hero{padding-top:32px}.visual{min-height:620px}.network{inset:0 -120px auto -120px;height:430px}.capstone{top:42px;width:78%}.pyramid{top:262px;width:120%}.services,.feature-bar{grid-template-columns:1fr}.osi-label{font-size:11px;bottom:8px}.section{padding-top:45px}}