:root{
  --bg:#020711;
  --bg-soft:#05111f;
  --panel:#071524;
  --panel-2:#091a2c;
  --text:#eef8ff;
  --muted:#b8cada;
  --cyan:#21d7ff;
  --cyan-2:#75f2ff;
  --blue:#087cff;
  --line:rgba(33,215,255,.28);
  --line-strong:rgba(117,242,255,.52);
  --shadow:0 28px 80px rgba(0,0,0,.34);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:
    radial-gradient(circle at 78% 12%, rgba(33,215,255,.12), transparent 24%),
    radial-gradient(circle at 16% 12%, rgba(8,124,255,.10), transparent 20%),
    linear-gradient(180deg,#020711 0%,#030a15 45%,#020711 100%);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed; inset:0; z-index:-5;
  background:
    repeating-linear-gradient(115deg, transparent 0 42px, rgba(33,215,255,.035) 43px, transparent 45px),
    linear-gradient(12deg, transparent 0 54%, rgba(33,215,255,.13) 55%, transparent 56%),
    linear-gradient(16deg, transparent 0 64%, rgba(117,242,255,.10) 65%, transparent 66%),
    radial-gradient(ellipse at 82% 54%, rgba(33,215,255,.11), transparent 28%);
  opacity:.95;
  pointer-events:none;
}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,calc(100% - 42px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(2,7,17,.88);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(33,215,255,.22);
}
.nav{
  min-height:86px;
  display:flex;align-items:center;justify-content:space-between;gap:22px;
  padding:12px 0;
}
.brand{
  display:flex;align-items:center;gap:14px;min-width:0;
}
.logo-frame{
  width:84px;height:52px;border-radius:16px;overflow:hidden;
  border:1px solid rgba(33,215,255,.36);
  background:#020711;
  box-shadow:0 0 26px rgba(33,215,255,.18);
  flex:0 0 auto;
}
.logo-frame img{width:100%;height:100%;object-fit:cover;object-position:left center;display:block}
.brand-title{
  font-weight:950;text-transform:uppercase;letter-spacing:.115em;line-height:1.02;
  font-size:18px;white-space:nowrap;
}
.brand-title span{display:block;color:var(--cyan);letter-spacing:.17em}
.nav-links{
  display:flex;align-items:center;gap:26px;
  text-transform:uppercase;letter-spacing:.055em;font-size:13px;font-weight:850;
}
.nav-links a{color:#e7f6ff}
.dropdown{position:relative}
.dropbtn{cursor:pointer}
.dropdown-menu{
  position:absolute;top:calc(100% + 16px);left:-18px;min-width:265px;padding:10px;
  border:1px solid var(--line);
  border-radius:18px;
  background:rgba(3,12,24,.98);
  box-shadow:0 30px 80px rgba(0,0,0,.5),0 0 26px rgba(33,215,255,.10);
  opacity:0;transform:translateY(-8px);pointer-events:none;transition:.18s ease;
}
.dropdown:hover .dropdown-menu{opacity:1;transform:translateY(0);pointer-events:auto}
.dropdown-menu a{
  display:block;padding:12px 14px;border-radius:12px;
  text-transform:none;letter-spacing:0;color:#c9eafa;font-weight:700;
}
.dropdown-menu a:hover{background:rgba(33,215,255,.10);color:white}
.nav-cta{
  padding:12px 18px;border:1px solid var(--cyan);border-radius:12px;
  background:rgba(6,22,38,.35);
  box-shadow:0 0 26px rgba(33,215,255,.16);
  color:#fff!important;
}
.menu-toggle{
  display:none;border:1px solid var(--line);background:rgba(5,18,32,.72);
  color:#fff;border-radius:14px;padding:11px 15px;font-size:15px;font-weight:900;
}

/* Hero */
.hero{
  position:relative;min-height:calc(100vh - 86px);
  display:flex;align-items:center;overflow:hidden;
  padding:78px 0 64px;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:
    linear-gradient(90deg,rgba(2,7,17,1) 0%,rgba(2,7,17,.96) 30%,rgba(2,7,17,.54) 58%,rgba(2,7,17,.12) 100%);
}
.hero-bg{
  position:absolute;right:0;top:0;bottom:0;width:64%;z-index:-3;
  background:url("hero-wide.jpg") center right/cover no-repeat;
  filter:saturate(1.1) contrast(1.08);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,#020711 0%,rgba(2,7,17,.72) 23%,rgba(2,7,17,.12) 60%),
    linear-gradient(180deg,rgba(2,7,17,.0) 0%,rgba(2,7,17,.18) 68%,#020711 100%);
}
.kicker{
  color:var(--cyan);
  text-transform:uppercase;letter-spacing:.18em;font-size:13px;font-weight:950;
  margin-bottom:20px;
}
h1{
  margin:0 0 22px;max-width:760px;
  font-size:clamp(46px,7vw,86px);
  line-height:.96;letter-spacing:-.055em;
}
h1 .cyan{color:var(--cyan);text-shadow:0 0 32px rgba(33,215,255,.38)}
.lead{
  max-width:620px;color:#d8ebf8;
  font-size:clamp(18px,2vw,23px);line-height:1.46;
  margin:0 0 28px;
}
.tagline{
  color:var(--cyan);
  text-transform:uppercase;letter-spacing:.14em;font-size:14px;font-weight:900;
  line-height:1.55;margin:0 0 30px;
}
.actions{display:flex;gap:16px;flex-wrap:wrap;margin:0 0 34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:12px;
  border-radius:12px;padding:16px 22px;font-weight:950;text-transform:uppercase;
  letter-spacing:.04em;font-size:13px;border:1px solid var(--line-strong);
}
.btn.primary{background:var(--cyan);color:#04111b;box-shadow:0 0 30px rgba(33,215,255,.25)}
.btn.secondary{background:rgba(2,7,17,.62);color:#fff}
.proof-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:18px;
  border-top:1px solid rgba(33,215,255,.18);padding-top:22px;max-width:980px;
}
.mini-proof{
  display:flex;gap:14px;align-items:flex-start;color:#c6dceb;
}
.mini-icon{
  width:42px;height:42px;flex:0 0 auto;border:1px solid var(--line);
  border-radius:12px;display:grid;place-items:center;color:var(--cyan);
  background:rgba(33,215,255,.06);
}
.mini-proof b{display:block;color:var(--cyan);text-transform:uppercase;letter-spacing:.08em;font-size:12px}
.mini-proof span{display:block;color:#c5d9e8;font-size:14px;line-height:1.35}

/* Sections */
section{padding:82px 0;border-top:1px solid rgba(33,215,255,.13)}
.section-head{text-align:center;max-width:860px;margin:0 auto 36px}
h2{
  margin:0 0 14px;font-size:clamp(34px,4.2vw,56px);line-height:1.03;letter-spacing:-.045em;
}
.sub{color:var(--muted);font-size:18px;line-height:1.55;margin:0 auto;max-width:780px}
.mission-card{
  display:grid;grid-template-columns:190px 1fr;gap:28px;align-items:center;
  border:1px solid var(--line);border-radius:24px;
  background:linear-gradient(180deg,rgba(6,20,36,.74),rgba(3,12,24,.72));
  box-shadow:var(--shadow);padding:32px;
}
.radar{
  width:122px;height:122px;border-radius:50%;border:1px solid var(--cyan);
  box-shadow:inset 0 0 22px rgba(33,215,255,.18),0 0 26px rgba(33,215,255,.16);
  margin:auto;position:relative;background:radial-gradient(circle,rgba(33,215,255,.12),transparent 58%);
}
.radar::before,.radar::after{
  content:"";position:absolute;left:50%;top:10%;bottom:10%;width:1px;background:rgba(33,215,255,.5);
}
.radar::after{top:50%;left:10%;right:10%;height:1px;width:auto}
.radar span{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:24px;height:24px;border:2px solid var(--cyan);border-radius:50%;
}
.mission-card p{color:#d6e8f4;font-size:18px;line-height:1.55;margin:0}
.mission-card strong{display:block;color:var(--cyan);text-transform:uppercase;letter-spacing:.10em;font-size:13px;margin-top:14px}

.platform-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:20px;
}
.platform-card{
  min-height:240px;text-align:center;border:1px solid var(--line);
  border-radius:18px;background:linear-gradient(180deg,rgba(8,25,43,.78),rgba(3,12,24,.74));
  box-shadow:0 20px 70px rgba(0,0,0,.25);padding:26px 20px;
}
.icon-large{
  width:82px;height:82px;margin:0 auto 22px;color:var(--cyan);
  display:grid;place-items:center;
  filter:drop-shadow(0 0 18px rgba(33,215,255,.45));
}
.icon-large svg{width:78px;height:78px;stroke:currentColor;fill:none;stroke-width:1.8}
.platform-card h3{
  margin:0 0 10px;text-transform:uppercase;letter-spacing:.07em;font-size:14px;
}
.platform-card p{margin:0;color:#c9dce9;font-size:15px;line-height:1.48}
.cap-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  border-top:1px solid rgba(33,215,255,.18);margin-top:36px;padding-top:28px;
}
.cap{display:grid;grid-template-columns:52px 1fr;gap:14px;align-items:start}
.cap .mini-icon{width:50px;height:50px;border-radius:14px}
.cap h4{margin:0 0 4px;color:var(--cyan);text-transform:uppercase;letter-spacing:.08em;font-size:13px}
.cap p{margin:0;color:#bfd2e2;font-size:15px;line-height:1.4}
.callout{
  border:1px solid rgba(117,242,255,.38);border-radius:24px;
  background:linear-gradient(135deg,rgba(33,215,255,.10),rgba(3,12,24,.76));
  padding:30px;box-shadow:0 0 44px rgba(33,215,255,.08);
}
.callout h3{font-size:30px;line-height:1.08;margin:0 0 12px}
.callout p{font-size:18px;line-height:1.55;color:#d2e5f3;margin:0}
.grid{display:grid;gap:20px}
.grid.three{grid-template-columns:repeat(3,1fr)}
.grid.two{grid-template-columns:repeat(2,1fr)}
.card{
  border:1px solid var(--line);border-radius:22px;padding:26px;
  background:linear-gradient(180deg,rgba(8,25,43,.80),rgba(3,12,24,.74));
  box-shadow:0 22px 70px rgba(0,0,0,.24);
}
.card h3{margin:0 0 10px;font-size:24px;line-height:1.12}
.card p,.card li{color:#c5d9e8;font-size:16px;line-height:1.55}
.card ul{padding-left:20px;margin:10px 0 0}
.badge{color:var(--cyan);text-transform:uppercase;letter-spacing:.14em;font-size:12px;font-weight:950;margin-bottom:10px}
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.step{border:1px solid var(--line);border-radius:18px;padding:15px;background:rgba(33,215,255,.06);min-height:100px}
.step strong{display:block;color:var(--cyan);margin-bottom:8px}
.states{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:16px}
.state{border:1px solid var(--line);border-radius:16px;padding:14px;background:rgba(255,255,255,.03)}
.state b{color:var(--cyan)}
.page-hero{padding:92px 0 54px}
.footer{padding:54px 0;border-top:1px solid var(--line);color:var(--muted)}
.footer .container{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}

/* Mobile */
@media (max-width:1080px){
  .platform-grid{grid-template-columns:repeat(3,1fr)}
  .cap-strip{grid-template-columns:repeat(2,1fr)}
  .proof-strip{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .container{width:min(100% - 34px,1180px)}
  .nav{min-height:76px;flex-wrap:wrap}
  .logo-frame{width:68px;height:46px}
  .brand-title{font-size:16px}
  .menu-toggle{display:block;margin-left:auto}
  .nav-links{
    display:none;flex-direction:column;align-items:flex-start;width:100%;gap:14px;padding:10px 0 14px;
  }
  .nav-links.open{display:flex}
  .dropdown-menu{position:static;opacity:1;transform:none;pointer-events:auto;display:none;margin-top:8px}
  .dropdown.open .dropdown-menu{display:block}
  .hero{
    min-height:auto;padding:58px 0 52px;
  }
  .hero-bg{
    width:100%;right:-22%;opacity:.60;background-image:url("hero-dogs.jpg");
  }
  .hero::before{
    background:linear-gradient(90deg,rgba(2,7,17,.98) 0%,rgba(2,7,17,.90) 100%);
  }
  h1{font-size:clamp(42px,12vw,68px);max-width:100%}
  .lead{font-size:18px;max-width:100%}
  .tagline{font-size:12px}
  .mission-card{grid-template-columns:1fr;text-align:left}
  .radar{margin:0}
  .platform-grid,.grid.three,.grid.two,.flow,.states{grid-template-columns:1fr}
}
@media (max-width:620px){
  .container{width:min(100% - 24px,1180px)}
  .site-header{position:sticky}
  .nav{padding:9px 0}
  .logo-frame{width:58px;height:42px;border-radius:12px}
  .brand{gap:10px}
  .brand-title{font-size:14px;letter-spacing:.085em}
  .brand-title span{letter-spacing:.12em}
  .menu-toggle{padding:10px 13px;font-size:14px}
  .hero{padding:44px 0 42px}
  .hero-bg{right:-34%;opacity:.46}
  .kicker{font-size:12px;letter-spacing:.18em}
  h1{font-size:clamp(38px,13vw,56px);letter-spacing:-.055em;margin-bottom:18px}
  .lead{font-size:17px}
  .actions{flex-direction:column;margin-bottom:24px}
  .btn{width:100%;padding:15px 18px}
  .proof-strip{grid-template-columns:1fr;gap:12px;padding-top:16px}
  .mini-proof{border:1px solid var(--line);border-radius:16px;padding:12px;background:rgba(3,12,24,.58)}
  section{padding:62px 0}
  .mission-card{padding:22px}
  .radar{width:90px;height:90px}
  .platform-card{min-height:auto;padding:22px}
  .cap-strip{grid-template-columns:1fr}
}

/* Use case detail pages */
.usecase-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.usecase-card{display:flex;flex-direction:column;min-height:310px}
.usecase-card .btn{margin-top:auto;align-self:flex-start}
.detail-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:24px;align-items:start}
.scenario-box{border:1px solid var(--line-strong);border-radius:24px;padding:28px;background:linear-gradient(135deg,rgba(33,215,255,.12),rgba(3,12,24,.82));box-shadow:0 0 48px rgba(33,215,255,.08)}
.scenario-box h2{font-size:clamp(30px,3.3vw,46px)}
.scenario-box p{color:#d7e9f5;font-size:18px;line-height:1.55}
.runtime-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:26px}
.runtime-flow .step{min-height:88px}
.detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.receipt-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px}
.receipt-list span{display:block;border:1px solid var(--line);background:rgba(33,215,255,.055);border-radius:14px;padding:12px 13px;color:#d7edf8;font-weight:750;font-size:14px}
.demo-logic{margin-top:22px;border-left:3px solid var(--cyan);padding:14px 0 14px 18px;color:#e9f7ff;font-weight:850;line-height:1.5}
.back-link{display:inline-flex;margin-bottom:22px;color:var(--cyan);font-weight:900}
@media (max-width:900px){.usecase-list,.detail-layout,.detail-grid,.receipt-list,.runtime-flow{grid-template-columns:1fr}.usecase-card .btn{width:100%}}