*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#0d1117;--bg-2:#11161e;--bg-3:#161c26;--panel:#1a2030;--panel-2:#212838;
  --line:#262e3f;--line-2:#323b50;
  --ink:#e6ecf3;--ink-2:#aab4c5;--ink-3:#6f7a8d;
  --steel:#5a8cb8;--steel-2:#3d6b94;--cyan:#6ad0d0;--cyan-2:#3aa8a8;
  --glow:rgba(106,208,208,.12);--grid:rgba(90,140,184,.08);
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --sans:'Inter','Helvetica Neue',sans-serif;
  --display:'Space Grotesk','Inter',sans-serif;
  --maxw:1320px;
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:64px 64px;background-position:center top;
  background-attachment:fixed;
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none}
a:hover{color:var(--steel)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan-2)}
.kicker{font-family:var(--mono);font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-3);display:inline-flex;align-items:center;gap:8px}
.kicker::before{content:"";width:14px;height:1px;background:var(--cyan-2)}
h1,h2,h3,h4{font-family:var(--display);font-weight:600;letter-spacing:-.02em;line-height:1.1;color:#fff;margin:0}
h1{font-size:clamp(2.4rem,5.4vw,4.4rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.8rem)}
h3{font-size:1.25rem;letter-spacing:-.01em}
p{margin:0 0 14px;color:var(--ink-2)}
/* HEADER */
.hdr{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);background:rgba(13,17,23,.78);border-bottom:1px solid var(--line)}
.hdr-row{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:600;letter-spacing:-.02em;color:#fff;font-size:1.05rem}
.brand .logo{width:26px;height:26px}
.brand .ver{font-family:var(--mono);font-size:9px;color:var(--cyan-2);letter-spacing:.2em;background:var(--panel);border:1px solid var(--line-2);padding:2px 6px;border-radius:3px;margin-left:6px}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{padding:8px 12px;color:var(--ink-2);font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;border:1px solid transparent;border-radius:4px}
.nav a:hover{color:#fff;border-color:var(--line-2);background:var(--panel)}
.nav a.active{color:var(--cyan);border-color:var(--cyan-2)}
.burger{display:none;background:none;border:1px solid var(--line-2);color:var(--ink);padding:8px 10px;border-radius:4px;cursor:pointer;font-family:var(--mono);font-size:11px}
/* HERO BLOCK A */
.hero-grid{padding:80px 0 64px;position:relative;border-bottom:1px solid var(--line)}
.hero-grid .meta-line{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--ink-3);margin-bottom:32px;text-transform:uppercase;border-top:1px solid var(--line);padding-top:18px}
.hero-grid .meta-line span{padding-right:18px;border-right:1px solid var(--line);margin-right:18px}
.hero-grid .meta-line span:last-child{border:0}
.hero-grid h1{margin-bottom:24px;max-width:980px}
.hero-grid h1 em{color:var(--cyan);font-style:normal}
.hero-grid .lead{max-width:680px;font-size:1.1rem;color:var(--ink-2)}
.hero-grid .cta-row{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;padding:14px 22px;border-radius:4px;border:1px solid var(--cyan-2);background:linear-gradient(135deg,var(--cyan-2),var(--steel-2));color:#0d1117;font-weight:600;transition:.2s}
.btn:hover{background:var(--cyan);color:#0d1117;transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn.ghost:hover{border-color:var(--cyan);color:var(--cyan)}
/* INFRASTRUCTURE PANEL (4x grid) */
.infra-panel{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);margin-top:56px;background:var(--bg-2)}
.infra-cell{padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.infra-cell:nth-child(4n){border-right:0}
.infra-cell:nth-last-child(-n+4){border-bottom:0}
.infra-cell .node-id{font-family:var(--mono);font-size:9px;color:var(--cyan-2);letter-spacing:.22em}
.infra-cell h4{font-family:var(--display);font-size:.95rem;color:#fff;margin:14px 0 8px;font-weight:500}
.infra-cell p{font-size:.85rem;color:var(--ink-3);margin:0;line-height:1.55}
.infra-cell .pulse{position:absolute;top:14px;right:14px;width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 var(--glow);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 var(--glow)}70%{box-shadow:0 0 0 12px transparent}100%{box-shadow:0 0 0 0 transparent}}
/* SECTION */
section{padding:88px 0;border-bottom:1px solid var(--line);position:relative}
.sec-head{display:grid;grid-template-columns:200px 1fr;gap:48px;margin-bottom:48px;align-items:start}
.sec-head h2{max-width:780px}
.sec-head .index{font-family:var(--mono);color:var(--ink-3);font-size:11px;letter-spacing:.2em}
.sec-head .index .num{display:block;color:var(--cyan);font-size:2rem;font-weight:600;margin-bottom:8px;letter-spacing:0;font-family:var(--display)}
/* MODULE LIST (architecture page) */
.module-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.module-row{background:var(--bg-2);padding:28px;display:grid;grid-template-columns:80px 1fr 200px;gap:32px;align-items:center;transition:.2s}
.module-row:hover{background:var(--bg-3)}
.module-row .mod-num{font-family:var(--mono);color:var(--cyan-2);font-size:11px;letter-spacing:.18em}
.module-row h3{font-family:var(--display);font-size:1.1rem;margin-bottom:6px}
.module-row p{font-size:.9rem;color:var(--ink-3);margin:0}
.module-row .stat{text-align:right;font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:var(--ink-3)}
.module-row .stat strong{display:block;color:var(--cyan);font-size:1.5rem;font-family:var(--display);font-weight:600;letter-spacing:-.01em;margin-bottom:2px}
/* INTEGRATION FLOW (integration page) */
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.flow-node{background:var(--panel);border:1px solid var(--line-2);padding:28px;position:relative}
.flow-node::before{content:"";position:absolute;top:-1px;left:-1px;width:30px;height:30px;border-top:2px solid var(--cyan);border-left:2px solid var(--cyan)}
.flow-node::after{content:"";position:absolute;bottom:-1px;right:-1px;width:30px;height:30px;border-bottom:2px solid var(--steel);border-right:2px solid var(--steel)}
.flow-node .node-tag{font-family:var(--mono);font-size:10px;color:var(--cyan-2);letter-spacing:.2em;margin-bottom:14px}
.flow-node h3{font-size:1rem;margin-bottom:10px}
.flow-node p{font-size:.88rem;color:var(--ink-3)}
.flow-node ul{list-style:none;padding:0;margin:14px 0 0;font-family:var(--mono);font-size:10.5px;color:var(--ink-2);letter-spacing:.08em}
.flow-node li{padding:6px 0;border-bottom:1px dashed var(--line);display:flex;justify-content:space-between}
.flow-node li:last-child{border:0}
.flow-node li::before{content:"›";color:var(--cyan-2);margin-right:8px}
/* IMAGE BLOCKS */
.imgblock{position:relative;overflow:hidden;border:1px solid var(--line);background:var(--bg-2)}
.imgblock img{width:100%;height:100%;object-fit:cover;filter:saturate(.75) contrast(1.05) brightness(.85)}
.imgblock::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(13,17,23,.7),rgba(58,168,168,.1));pointer-events:none}
.imgblock .tag{position:absolute;top:16px;left:16px;font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:#fff;background:rgba(13,17,23,.85);padding:6px 10px;border:1px solid var(--cyan-2);text-transform:uppercase;z-index:2}
.imgblock .meta{position:absolute;bottom:16px;left:16px;right:16px;font-family:var(--mono);font-size:9px;letter-spacing:.18em;color:var(--ink-2);z-index:2;display:flex;justify-content:space-between}
/* CLOUD GRID (infrastructure) */
.cloud-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:stretch}
.cloud-grid .panel{background:var(--panel);border:1px solid var(--line-2);padding:32px}
.cloud-grid .panel h3{margin-bottom:14px}
.cloud-grid .imgblock{min-height:380px}
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line-2);margin-top:24px}
.metric-strip > div{padding:18px;border-right:1px solid var(--line-2)}
.metric-strip > div:last-child{border-right:0}
.metric-strip .val{font-family:var(--display);font-size:1.8rem;color:var(--cyan);font-weight:600;letter-spacing:-.01em}
.metric-strip .lbl{font-family:var(--mono);font-size:9px;color:var(--ink-3);letter-spacing:.2em;text-transform:uppercase;margin-top:4px}
/* COMM LAYERS */
.layer-stack{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line)}
.layer{background:var(--bg-2);padding:24px 28px;display:grid;grid-template-columns:60px 160px 1fr 100px;gap:24px;align-items:center;border-left:3px solid transparent;transition:.2s}
.layer:hover{background:var(--bg-3);border-left-color:var(--cyan)}
.layer .lvl{font-family:var(--mono);font-size:10px;color:var(--cyan-2);letter-spacing:.18em}
.layer .ttl{font-family:var(--display);color:#fff;font-size:1rem}
.layer .desc{color:var(--ink-3);font-size:.9rem;margin:0}
.layer .status{font-family:var(--mono);font-size:9px;letter-spacing:.2em;color:var(--cyan);text-align:right}
/* FRAMEWORK TIMELINE */
.tline{position:relative;padding-left:40px}
.tline::before{content:"";position:absolute;left:14px;top:0;bottom:0;width:1px;background:var(--line-2)}
.tline .ev{position:relative;padding:18px 0 28px}
.tline .ev::before{content:"";position:absolute;left:-32px;top:24px;width:11px;height:11px;border-radius:50%;background:var(--bg);border:2px solid var(--cyan)}
.tline .ev .ts{font-family:var(--mono);font-size:10px;color:var(--cyan-2);letter-spacing:.18em;margin-bottom:6px}
.tline .ev h3{font-size:1.05rem;margin-bottom:6px}
.tline .ev p{font-size:.92rem;color:var(--ink-3);margin:0}
/* DATA COORD — matrix */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line)}
.matrix .cell{padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2);position:relative}
.matrix .cell:nth-child(3n){border-right:0}
.matrix .cell:nth-last-child(-n+3){border-bottom:0}
.matrix .cell .ix{font-family:var(--mono);font-size:9px;color:var(--ink-3);letter-spacing:.22em;position:absolute;top:14px;right:14px}
.matrix .cell h4{font-size:1rem;margin:0 0 8px;font-weight:500}
.matrix .cell p{font-size:.86rem;color:var(--ink-3);margin:0;line-height:1.6}
/* FAQ */
.faq-list{max-width:880px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;background:none;border:0;color:#fff;font-family:var(--display);font-size:1.1rem;text-align:left;padding:22px 60px 22px 0;cursor:pointer;position:relative;letter-spacing:-.01em}
.faq-q::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);color:var(--cyan);font-size:1.5rem;transition:.2s}
.faq-item.open .faq-q::after{content:"−"}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--ink-2)}
.faq-item.open .faq-a{max-height:600px;padding:0 0 22px}
.faq-a p{font-size:.95rem;line-height:1.7}
/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info .info-row{padding:18px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:24px;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase}
.contact-info .info-row .lbl{color:var(--ink-3);letter-spacing:.2em}
.contact-info .info-row .val{color:#fff;text-align:right}
.form{background:var(--panel);border:1px solid var(--line-2);padding:32px}
.form label{display:block;font-family:var(--mono);font-size:10px;color:var(--ink-3);letter-spacing:.2em;text-transform:uppercase;margin:0 0 6px}
.form input,.form textarea,.form select{width:100%;background:var(--bg);border:1px solid var(--line-2);color:#fff;padding:12px 14px;font-family:var(--sans);font-size:.95rem;border-radius:3px;margin-bottom:18px;transition:.15s}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--cyan)}
.form textarea{min-height:140px;resize:vertical}
.form-msg{font-family:var(--mono);font-size:10.5px;color:var(--cyan);margin-top:8px;letter-spacing:.16em;display:none}
.form-msg.show{display:block}
.map-frame{margin-top:48px;border:1px solid var(--line-2);background:var(--bg-2);overflow:hidden}
.map-frame iframe{width:100%;height:380px;border:0;filter:invert(.86) hue-rotate(170deg) saturate(.6)}
/* FOOTER */
.ftr{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 24px}
.ftr-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.ftr h5{font-family:var(--mono);font-size:11px;color:var(--cyan-2);letter-spacing:.22em;text-transform:uppercase;margin:0 0 18px}
.ftr ul{list-style:none;padding:0;margin:0}
.ftr ul li{padding:6px 0}
.ftr ul a{color:var(--ink-2);font-size:.92rem}
.ftr ul a:hover{color:var(--cyan)}
.ftr .lead{color:var(--ink-2);font-size:.92rem;max-width:340px}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{width:36px;height:36px;background:var(--panel);border:1px solid var(--line-2);display:grid;place-items:center;border-radius:4px;transition:.2s}
.socials a:hover{border-color:var(--cyan);background:var(--bg-3)}
.socials svg{width:16px;height:16px;fill:var(--ink-2)}
.socials a:hover svg{fill:var(--cyan)}
.ftr-bot{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;color:var(--ink-3);letter-spacing:.18em;text-transform:uppercase;flex-wrap:wrap;gap:14px}
/* COOKIE BANNER */
.cookie{position:fixed;bottom:18px;left:18px;right:18px;max-width:560px;margin:0 auto;background:var(--panel);border:1px solid var(--cyan-2);padding:18px 22px;z-index:80;display:none;border-radius:4px;font-size:.88rem;color:var(--ink-2);box-shadow:0 8px 40px rgba(0,0,0,.5)}
.cookie.show{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.cookie p{margin:0;flex:1;min-width:260px;font-size:.85rem}
.cookie button{font-family:var(--mono);font-size:10px;letter-spacing:.18em;padding:8px 14px;border:1px solid var(--cyan-2);background:var(--cyan-2);color:#0d1117;cursor:pointer;border-radius:3px;text-transform:uppercase}
.cookie button.dec{background:transparent;color:var(--ink-2);border-color:var(--line-2)}
/* BACK TOP */
.back-top{position:fixed;bottom:24px;right:24px;width:42px;height:42px;background:var(--panel);border:1px solid var(--cyan-2);border-radius:4px;display:none;place-items:center;cursor:pointer;color:var(--cyan);font-family:var(--mono);font-size:14px;z-index:70;transition:.2s}
.back-top.show{display:grid}
.back-top:hover{background:var(--cyan-2);color:#0d1117}
/* REVEAL */
.reveal{opacity:1;transform:translateY(20px);transition:transform .6s ease,opacity .6s ease}
.reveal.in{transform:translateY(0)}
@media(max-width:980px){
  .infra-panel{grid-template-columns:repeat(2,1fr)}
  .infra-cell:nth-child(4n){border-right:1px solid var(--line)}
  .infra-cell:nth-child(2n){border-right:0}
  .infra-cell:nth-last-child(-n+4){border-bottom:1px solid var(--line)}
  .infra-cell:nth-last-child(-n+2){border-bottom:0}
  .flow-grid{grid-template-columns:1fr}
  .cloud-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .sec-head{grid-template-columns:1fr;gap:18px}
  .module-row{grid-template-columns:1fr;gap:8px}
  .module-row .stat{text-align:left}
  .layer{grid-template-columns:1fr;gap:8px}
  .layer .status{text-align:left}
  .matrix{grid-template-columns:1fr}
  .matrix .cell{border-right:0}
  .matrix .cell:nth-last-child(-n+3){border-bottom:1px solid var(--line)}
  .matrix .cell:last-child{border-bottom:0}
  .ftr-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg-2);flex-direction:column;border-bottom:1px solid var(--line);padding:14px 28px}
  .nav.open{display:flex}
  .burger{display:inline-block}
}
@media(max-width:560px){
  .container{padding:0 20px}
  .infra-panel{grid-template-columns:1fr}
  .infra-cell{border-right:0!important}
  .infra-cell:nth-last-child(-n+1){border-bottom:0!important}
  .infra-cell:not(:last-child){border-bottom:1px solid var(--line)!important}
  .ftr-grid{grid-template-columns:1fr}
  .metric-strip{grid-template-columns:1fr 1fr}
  .metric-strip > div:nth-child(2){border-right:0}
}
@media(prefers-reduced-motion:reduce){
  .reveal{transform:none}
  .pulse{animation:none}
}