:root{--ink:#f1f7ff;--muted:#b4c9dc;--cyan:#3edbf6;--line:#a3d5f42e;--navy:#050c17}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:95px}
body{margin:0;background:var(--navy);color:var(--ink);font:16px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;isolation:isolate}
a{color:inherit;text-decoration:none}
button,select,input{font:inherit}
button,a,select,summary,input{outline-offset:4px}
button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--cyan)}
.wrap{max-width:1240px;margin:auto;padding:0 28px}

/* fixed animated data center backdrop */
.backdrop{position:fixed;inset:0;z-index:-3;background:#071320 url('datacenter.webp') center/cover no-repeat;pointer-events:none;overflow:hidden}
.shade{position:fixed;inset:0;z-index:-2;background:linear-gradient(90deg,#020a15ed,#020b16b5 65%,#020a1599);pointer-events:none}
.led{position:absolute;left:var(--x);top:var(--y);width:4px;height:3px;background:#6deeff;box-shadow:0 0 8px #18d6ff;animation:led 2.4s ease-in-out infinite;animation-delay:var(--delay)}
.path{position:absolute;left:var(--left);top:var(--top);width:var(--width);height:var(--height);border:1px solid #35dcff28;border-radius:10px}
.packet{position:absolute;width:14px;height:3px;background:#c5fbff;box-shadow:0 0 10px #00cfff;animation:packet 4.2s linear infinite;animation-delay:var(--delay)}

/* header */
header{position:sticky;top:0;z-index:30;background:#030d1bf2;backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.top{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:82px}
.word{width:152px;height:auto;display:block}
.navigation{display:flex;align-items:center;gap:22px;font-size:12.5px;color:#c3d8eb}
.navigation a:hover,.navigation summary:hover,.navigation a[aria-current=page]{color:var(--cyan)}
.navdrop{position:relative}
.navdrop summary{cursor:pointer;list-style:none}
.navdrop summary::-webkit-details-marker{display:none}
.navdrop summary:after{content:'\2304';margin-left:7px}
.dropdown{position:absolute;top:38px;left:-20px;min-width:255px;padding:12px;background:#081a2dfc;border:1px solid #3e637c;border-radius:12px;box-shadow:0 15px 40px #0008;display:grid;gap:3px}
.dropdown a{padding:9px;border-radius:7px}
.dropdown a:hover{background:#15364b}
.language{display:flex;align-items:center;gap:8px;font-size:11px}
.language select{background:#10263a;color:white;border:1px solid #486b84;border-radius:8px;padding:8px;max-width:145px}
.menu-toggle{display:none;border:1px solid #47687f;background:#102438;color:white;border-radius:7px;padding:7px 11px;cursor:pointer}

/* hero + logo formation */
.hero{padding:20px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:38px;align-items:start}
.hero-copy{padding-top:10px}
.eyebrow{font-size:10px;letter-spacing:.18em;color:var(--cyan);font-weight:650}
h1{font-size:clamp(36px,4vw,59px);line-height:1.1;letter-spacing:-.045em;margin:18px 0 22px}
h2{font-size:clamp(28px,3.1vw,43px);line-height:1.17;letter-spacing:-.035em;margin:14px 0 22px}
h3{font-size:21px;line-height:1.3}
p{color:var(--muted)}
.lead{font-size:18px;max-width:780px}
.slogan{color:#d4f5ff;font-size:14px;margin-top:22px}
.actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border:1px solid #4a8aa76e;border-radius:8px;background:#10273be8;color:white;font-size:13px;font-weight:600;cursor:pointer;transition:filter .2s,transform .2s}
.primary{background:var(--cyan);border-color:var(--cyan);color:#041522}
.btn:hover{filter:brightness(1.12);transform:translateY(-1px)}
.visual{display:flex;flex-direction:column;align-items:center}
.stage{width:100%;height:280px;position:relative;overflow:hidden}
.solid{position:absolute;left:10%;top:23%;width:80%;height:54%;object-fit:contain;animation:solid 12s linear infinite;filter:drop-shadow(0 0 16px #1abde744)}
.hero-word{width:245px;max-width:80%}
.motion{border:0;background:transparent;color:#b9d4e9;font-size:11px;padding:12px;cursor:pointer}
.motionbar{height:0;position:relative;z-index:2}
.motionbar .motion{position:absolute;right:28px;top:3px}
.bit{position:absolute;left:var(--x);top:var(--y);font:10px/1 monospace;color:#68e7ff;text-shadow:0 0 8px #00bfff;opacity:0;animation:bits 12s linear infinite}
.atom{position:absolute;left:10%;top:25%;width:80%;height:48%;border:1px solid #38d9ff99;border-radius:50%;animation:atom 12s linear infinite;transform:rotate(var(--rot))}
.electron{position:absolute;inset:-4px;border-radius:50%;animation:spin 1.8s linear infinite}
.electron:before{content:'';position:absolute;left:49%;top:0;width:7px;height:7px;border-radius:50%;background:#e8ffff;box-shadow:0 0 14px 4px #00cfff}
.nucleus{position:absolute;left:49%;top:47%;width:12px;height:12px;border-radius:50%;background:#70ecff;box-shadow:0 0 30px 8px #00baff;animation:nucleus 12s linear infinite}

/* sections & cards */
.section{padding:65px 0;border-top:1px solid #a0d8f21a}
.head{max-width:800px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
.card{display:block;border:1px solid var(--line);border-radius:15px;padding:27px;background:linear-gradient(140deg,#10283df2,#061524ee);backdrop-filter:blur(8px);transition:transform .25s,border-color .25s;min-width:0}
.card:hover{transform:translateY(-4px);border-color:#37d9f18c}
.card p{font-size:14px}
.card h3{margin:15px 0}
.number{font-size:11px;letter-spacing:.14em;color:var(--cyan)}
.more{font-size:12px;color:var(--cyan)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.proof{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.proof div{border:1px solid var(--line);border-radius:12px;background:#061929e8;padding:23px;font-size:14px;color:#c6dcec}
.proof b{display:block;color:var(--cyan);font-size:23px;margin-bottom:12px}
.callout{border:1px solid #54c7e267;border-radius:20px;padding:44px;background:linear-gradient(125deg,#0c3549f2,#071a2dee)}
.note{font-size:11.5px;color:#a5bfd2}
.article-hero{padding:30px 0 40px}
.article-hero h1{max-width:1000px}
.breadcrumb{font-size:12px;color:#9dc2da;margin-bottom:24px}
.article-block{margin:0 0 25px;padding:34px;border:1px solid var(--line);border-radius:16px;background:#061728ed;backdrop-filter:blur(10px)}
.article-block h2{font-size:30px}
.article-block p{max-width:990px}
.source-list{font-size:13px;display:grid;gap:12px}
.source-list a{color:#8be9ff;text-decoration:underline;text-underline-offset:4px;overflow-wrap:anywhere}
.stats{display:flex;gap:25px;flex-wrap:wrap;align-items:baseline;padding:20px;background:#0b3043;border-radius:10px;margin:20px 0}
.stats strong{font-size:32px;color:#7cecff}
.stats span{font-size:12px}
.brand-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
.brandtile{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:9px;min-height:110px;background:white;border-radius:9px;padding:16px;color:#112239}
.brandtile img{width:120px;height:45px;object-fit:contain}
.brandtile span{font-size:12px;font-weight:650}
.brandtile.nvidia{grid-column:1/-1;min-height:160px;border:2px solid #76b900}
.brandtile.nvidia img{width:220px;height:85px}
.brandtile.nvidia span{font-size:23px;color:#477500}
.concept{margin:25px 0;border:1px solid #48d7ef55;border-radius:18px;overflow:hidden;background:#061a2d}
.concept img{width:100%;height:auto;display:block}

/* integrated management diagram */
.diagram{padding:28px;border:1px solid #40c5e25e;border-radius:18px;background:linear-gradient(135deg,#08243bed,#041320f5);margin:28px 0}
.diagram-grid{display:grid;grid-template-columns:1fr 60px 1.2fr 60px 1.5fr;align-items:center;min-height:300px}
.node{padding:25px 15px;border:1px solid #4bb4d85c;border-radius:14px;text-align:center;background:#0b263a}
.node strong{display:block;font-size:19px}
.node p{font-size:12px;margin-bottom:0}
.node.hub{border-color:#3edbf6;box-shadow:0 0 35px #00c9ff20;background:#0b354a}
.node img{width:125px;height:auto;margin:auto}
.flow{height:2px;background:#2db5d26e;position:relative}
.flow:after{content:'';position:absolute;width:12px;height:4px;background:#bdf7ff;top:-1px;box-shadow:0 0 10px #00d9ff;animation:flow 2.4s linear infinite}
.vendor-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.vendor{padding:17px 8px;min-height:68px;border:1px solid #426d88;border-radius:10px;background:#102a40;color:#e6f7ff;cursor:pointer;font-size:12px}
.vendor[aria-pressed=true]{border-color:var(--cyan);background:#0e465b}
.vendor-detail{padding:22px;border-left:3px solid var(--cyan);background:#0c2c40;margin-top:20px;border-radius:0 10px 10px 0;min-height:100px}
.vendor-detail h3{font-size:17px;margin:0}
.vendor-detail p{font-size:14px;margin:8px 0 0}
.sim-status{font-size:14px;color:#8defff;min-height:28px;margin-top:20px}
.sim-track{display:flex;gap:7px;margin-top:10px}
.sim-dot{height:4px;flex:1;background:#26485c;border-radius:4px}
.sim-dot.active{background:var(--cyan)}
.toc{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}
.toc a{font-size:12px;padding:8px 12px;border:1px solid #42657d;border-radius:30px;background:#071d30e8}
.toc a:hover{border-color:var(--cyan)}

/* contact cards */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:30px}
.contact-card{display:flex;flex-direction:column;gap:6px;border:1px solid var(--line);border-radius:16px;padding:26px;background:linear-gradient(140deg,#10283df2,#061524ee);backdrop-filter:blur(8px);transition:border-color .25s,transform .25s;min-width:0}
.contact-card:hover{border-color:#37d9f18c;transform:translateY(-3px)}
.contact-top{display:flex;align-items:center;gap:14px}
.ic{flex:none;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:#0d3b50;border:1px solid #2fc6e655;color:var(--cyan)}
.ic svg{width:22px;height:22px}
.contact-card h3{margin:0;font-size:19px}
.contact-mail{font-size:14px;color:#8be9ff;font-weight:600;overflow-wrap:anywhere}
.contact-card p{font-size:14px;margin:8px 0 14px;flex:1}
.contact-actions{display:flex;gap:10px;flex-wrap:wrap}
.contact-actions .btn{padding:10px 15px;font-size:12.5px}
.contact-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:28px}
.mini-contact{display:block;border:1px solid var(--line);border-radius:12px;padding:18px;background:#061929e8;transition:border-color .2s}
.mini-contact:hover{border-color:#37d9f18c}
.mini-contact strong{display:block;font-size:14px;color:var(--ink)}
.mini-contact span{display:block;font-size:12.5px;color:#8be9ff;overflow-wrap:anywhere;margin-top:4px}

/* footer */
footer{border-top:1px solid var(--line);background:#020a15f2}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;padding:48px 0 34px}
.footer-main .word{width:180px;margin-bottom:14px}
.footer-main h4{margin:6px 0 14px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.footer-main p{font-size:13px;margin:0 0 10px}
.footer-list{list-style:none;margin:0;padding:0;display:grid;gap:9px;font-size:13px;color:#b7d7ea}
.footer-list a:hover{color:var(--cyan)}
.footer-list small{display:block;color:#7f9bb3;font-size:11px;letter-spacing:.04em}
.footer-bottom{border-top:1px solid #a0d8f21a;padding:18px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:12px;color:#8fa9bf}
.footer-bottom a:hover{color:var(--cyan)}
.skip{position:absolute;top:-70px;left:10px;background:white;color:black;padding:10px;z-index:80}
.skip:focus{top:10px}

/* Sophia chat widget */
.chat-launch{position:fixed;right:22px;bottom:22px;z-index:60;width:64px;height:64px;border-radius:50%;padding:0;border:2px solid var(--cyan);background:#0a2236;cursor:pointer;box-shadow:0 10px 30px #0009,0 0 0 0 #3edbf680;animation:pulse 2.8s infinite}
.chat-launch img{width:100%;height:100%;border-radius:50%;object-fit:cover;display:block}
.chat-launch .dot{position:absolute;right:2px;bottom:3px;width:14px;height:14px;border-radius:50%;background:#33d17a;border:2px solid #0a2236}
.chat-teaser{position:fixed;right:96px;bottom:36px;z-index:60;max-width:220px;padding:10px 14px;border-radius:14px 14px 4px 14px;background:#f1f7ff;color:#0a1a2b;font-size:13px;font-weight:600;box-shadow:0 8px 24px #0008;cursor:pointer;border:0;text-align:left}
.chat-teaser[hidden]{display:none}
.chat{position:fixed;right:22px;bottom:100px;z-index:70;width:380px;max-width:calc(100vw - 24px);height:min(600px,calc(100vh - 130px));display:flex;flex-direction:column;border-radius:20px;overflow:hidden;background:#06121f;border:1px solid #3e7590;box-shadow:0 25px 70px #000b;transform-origin:bottom right;transition:opacity .22s,transform .22s}
.chat[hidden]{display:flex;opacity:0;transform:translateY(16px) scale(.97);pointer-events:none;visibility:hidden}
.chat-head{display:flex;align-items:center;gap:12px;padding:14px 14px 14px 16px;background:linear-gradient(120deg,#0c4a63,#0a2740 70%);border-bottom:1px solid #2f6a85}
.chat-head img{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid #7fe8fb}
.chat-id{flex:1;min-width:0;line-height:1.25}
.chat-id strong{display:block;font-size:15px}
.chat-id span{font-size:11.5px;color:#bfe9f5}
.chat-id .online{display:inline-flex;align-items:center;gap:5px}
.chat-id .online:before{content:'';width:7px;height:7px;border-radius:50%;background:#33d17a}
.chat-tool{width:34px;height:34px;border-radius:9px;border:1px solid #ffffff2a;background:#ffffff12;color:white;cursor:pointer;display:grid;place-items:center}
.chat-tool:hover{background:#ffffff26}
.chat-tool svg{width:16px;height:16px}
.chat-body{flex:1;overflow-y:auto;padding:16px 14px;display:flex;flex-direction:column;gap:10px;background:radial-gradient(ellipse at top,#0c2a40 0%,#06121f 70%);scroll-behavior:smooth}
.msg{display:flex;gap:8px;align-items:flex-end;max-width:92%;animation:msgIn .25s ease-out}
.msg.bot{align-self:flex-start}
.msg.user{align-self:flex-end;flex-direction:row-reverse}
.msg img{width:26px;height:26px;border-radius:50%;object-fit:cover;flex:none}
.bubble{padding:10px 13px;border-radius:14px;font-size:13.5px;line-height:1.5;overflow-wrap:anywhere}
.msg.bot .bubble{background:#12324a;color:#eaf6ff;border-bottom-left-radius:4px}
.msg.user .bubble{background:var(--cyan);color:#052033;border-bottom-right-radius:4px;font-weight:500}
.bubble .mail{display:inline-flex;align-items:center;gap:6px;margin-top:9px;padding:8px 11px;border-radius:9px;background:#0a2236;border:1px solid #3edbf688;color:#8be9ff;font-size:12.5px;font-weight:600}
.bubble .mail:hover{background:#0f3049}
.chips{display:flex;flex-wrap:wrap;gap:7px;padding-left:34px}
.chip{border:1px solid #3edbf699;background:#0a2236;color:#cdf6ff;border-radius:18px;padding:7px 12px;font-size:12.5px;cursor:pointer}
.chip:hover{background:#114159}
.typing{display:inline-flex;gap:4px;padding:12px 14px}
.typing i{width:6px;height:6px;border-radius:50%;background:#9fdcf0;animation:typing 1s infinite}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
.chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid #1f4a62;background:#071827}
.chat-form input{flex:1;min-width:0;border-radius:11px;border:1px solid #3a6680;background:#0b2335;color:white;padding:11px 13px;font-size:14px}
.chat-form input::placeholder{color:#89a8bf}
.chat-form button{border:0;border-radius:11px;background:var(--cyan);color:#052033;width:46px;cursor:pointer;display:grid;place-items:center}
.chat-form button svg{width:18px;height:18px}
.chat-notice{margin:0;padding:8px 14px 10px;font-size:10.5px;line-height:1.4;color:#88a5bb;background:#071827}

.paused *{animation-play-state:paused!important}
@keyframes led{0%,100%{opacity:.2}35%{opacity:1}55%{opacity:.4}70%{opacity:.9}}
@keyframes packet{0%{left:0;top:-2px;opacity:0}5%{opacity:1}45%{left:calc(100% - 12px);top:-2px}55%{left:calc(100% - 12px);top:calc(100% - 1px)}95%{left:0;top:calc(100% - 1px);opacity:1}100%{left:0;top:-2px;opacity:0}}
@keyframes bits{0%{opacity:0;transform:translate(var(--dx),var(--dy)) scale(.6)}8%{opacity:.7}24%{opacity:1;transform:translate(0,0)}36%{opacity:.8}46%,94%{opacity:0;transform:translate(0,0)}100%{opacity:0;transform:translate(var(--dx),var(--dy))}}
@keyframes solid{0%,35%{opacity:0}50%,91.6667%{opacity:1}98%,100%{opacity:0}}
@keyframes atom{0%,17%{opacity:0;transform:rotate(var(--rot)) scale(.6)}25%,37%{opacity:1;transform:rotate(var(--rot)) scale(1)}48%,100%{opacity:0;transform:rotate(var(--rot)) scale(1.15)}}
@keyframes nucleus{0%,18%{opacity:0}25%,35%{opacity:1}47%,100%{opacity:0}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes flow{0%{left:0;opacity:0}10%,90%{opacity:1}100%{left:calc(100% - 12px);opacity:0}}
@keyframes flowVertical{0%{top:0;opacity:0}10%,90%{opacity:1}100%{top:calc(100% - 12px);opacity:0}}
@keyframes pulse{0%{box-shadow:0 10px 30px #0009,0 0 0 0 #3edbf680}70%{box-shadow:0 10px 30px #0009,0 0 0 16px #3edbf600}100%{box-shadow:0 10px 30px #0009,0 0 0 0 #3edbf600}}
@keyframes typing{0%,80%,100%{opacity:.3;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}
@keyframes msgIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important;transition:none!important}.solid{opacity:1!important}.bit,.atom,.nucleus,.packet,.flow:after{display:none!important}.led{opacity:.6!important}}
@media(max-width:1000px){
 .navigation{display:none;position:absolute;top:82px;left:0;right:0;padding:20px 28px;background:#07182bf9;border-bottom:1px solid #436b84;flex-direction:column;align-items:stretch;gap:18px;max-height:75vh;overflow:auto}
 .navigation.open{display:flex}.menu-toggle{display:block}
 .dropdown{position:static;margin-top:10px;box-shadow:none;min-width:0}
 .top{gap:12px}.hero-grid,.split{grid-template-columns:1fr;gap:30px}
 .visual{max-width:520px;width:100%;margin:auto}.grid{grid-template-columns:1fr 1fr}
 .diagram-grid{grid-template-columns:1fr 35px 1.1fr 35px 1.4fr}.diagram{padding:20px}.node{padding:20px 10px}
 .footer-main{grid-template-columns:1fr 1fr}.contact-strip{grid-template-columns:1fr 1fr}
}
@media(max-width:650px){
 .wrap{padding:0 18px}.word{width:125px}.language span{display:none}.language select{max-width:115px;padding:7px}
 .top{gap:9px;min-height:76px}.navigation{top:76px}.menu-toggle{padding:7px 9px;font-size:12px}
 .hero{padding-top:15px}.hero-copy{padding-top:0}.stage{height:240px}.hero-word{width:215px}
 .grid,.split,.proof,.contact-grid,.contact-strip,.footer-main{grid-template-columns:1fr}
 .section{padding:50px 0}.article-block{padding:23px}.article-block h2{font-size:26px}.callout{padding:27px}
 .diagram-grid{grid-template-columns:1fr;gap:0;max-width:450px;margin:auto}
 .flow{height:40px;width:2px;margin:auto}.flow:after{width:4px;height:12px;top:0;left:-1px;animation:flowVertical 2.4s linear infinite}
 .node{padding:20px}.diagram{padding:18px}.lead{font-size:16px}.article-hero{padding-top:22px}.brand-grid{grid-template-columns:1fr 1fr}
 .footer-bottom{flex-direction:column;align-items:flex-start}
 .chat{right:8px;left:8px;width:auto;max-width:none;bottom:86px;height:calc(100vh - 110px);height:calc(100dvh - 110px)}
 .chat-launch{right:14px;bottom:14px;width:58px;height:58px}.chat-teaser{right:82px;bottom:26px}
}
@media(max-width:360px){.top .word{width:98px}.language select{width:100px;max-width:100px;font-size:11px}.menu-toggle{font-size:11px;padding:7px}.top{gap:7px}.wrap{padding-inline:16px}}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.brandtile{min-width:0}.brandtile img{max-width:100%}
@media(max-width:400px){.brand-grid{grid-template-columns:1fr}}
.bubble .mail{align-items:flex-start}.bubble .mail span{display:flex;flex-direction:column;line-height:1.35}.bubble .mail b{white-space:nowrap;font-size:12px;color:#c9f6ff}.bubble .mail svg{flex:none;margin-top:2px}