:root {
  --navy: #07182e;
  --navy2: #0b223d;
  --panel: #102b48;
  --cyan: #00e5ff;
  --white: #f5fbff;
  --muted: #b2c4d7;
  --line: rgba(137, 190, 220, .2);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  color: var(--white);
  background: var(--navy);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1160px, 90%); margin: auto; }
.cyan { color: var(--cyan); }
.eyebrow {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2px;
  margin: 0 0 13px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7, 24, 46, .96);
  border-bottom: 1px solid var(--line);
}
.nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-size: 23px;
  font-weight: 800;
}
.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 50%;
  background: white;
}
.brand small {
  display: block;
  font-size: 8px;
  color: var(--muted);
  letter-spacing: 1px;
}
#navLinks { display: flex; align-items: center; gap: 23px; font-size: 13px; }
#navLinks a:hover { color: var(--cyan); }
#navLinks .nav-contact { border: 1px solid var(--cyan); padding: 7px 13px; border-radius: 6px; }
.menu-toggle {
  display: none;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 11px;
  font-size: 23px;
}

.hero {
  padding: 85px 0;
  overflow: hidden;
  background: radial-gradient(ellipse at 85% 20%, #123c5c 0%, transparent 40%),
              linear-gradient(125deg, var(--navy), #0b2b49);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 55px;
  align-items: center;
}
h1 {
  font-size: clamp(36px, 5vw, 59px);
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin: 0 0 20px;
}
h1 span { color: var(--cyan); }
.intro { color: var(--muted); }
.hero .intro { max-width: 650px; font-size: 16px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-block;
  padding: 11px 17px;
  border: 1px solid var(--cyan);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 700;
}
.primary { background: var(--cyan); color: var(--navy); }
.secondary { color: var(--white); }
.button:hover { transform: translateY(-2px); }
.hero-note { color: var(--muted); font-size: 11px; margin-top: 22px; }

.hero-visual {
  padding: 18px;
  border: 1px solid rgba(0, 229, 255, .3);
  border-radius: 14px;
  background: rgba(8, 30, 51, .75);
}
.visual-label, .visual-footer {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 1.5px;
}
.visual-footer { border-top: 1px solid var(--line); padding-top: 13px; }
.tech-orbit { height: 280px; position: relative; display: grid; place-items: center; }
.orbit { position: absolute; border: 1px solid rgba(0, 229, 255, .35); border-radius: 50%; }
.orbit-a { width: 210px; height: 210px; }
.orbit-b { width: 275px; height: 135px; transform: rotate(35deg); }
.core {
  width: 105px; height: 105px; border-radius: 50%;
  display: grid; align-content: center; text-align: center;
  background: #0b2844; border: 1px solid var(--cyan);
  box-shadow: 0 0 30px rgba(0, 229, 255, .2);
  font-size: 25px; font-weight: 800; line-height: 1.1;
}
.core b { color: var(--cyan); font-size: 13px; letter-spacing: 4px; }
.node { position: absolute; width: 10px; height: 10px; background: var(--cyan); border-radius: 50%; box-shadow: 0 0 14px var(--cyan); }
.n1 { top: 30px; left: 43%; }
.n2 { top: 42%; right: 10%; }
.n3 { bottom: 30px; left: 25%; }
.n4 { bottom: 50px; right: 25%; }
.n5 { top: 43%; left: 10%; }

.section { padding: 76px 0; }
.section-heading {
  display: flex; justify-content: space-between; align-items: end;
  gap: 35px; margin-bottom: 28px;
}
h2 { font-size: clamp(27px, 3.5vw, 39px); line-height: 1.25; margin: 0; }
.section-heading > p { color: var(--muted); max-width: 410px; font-size: 13px; margin: 0; }

.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.service-card {
  position: relative; padding: 23px;
  background: linear-gradient(145deg, var(--panel), #0a2038);
  border: 1px solid var(--line); border-radius: 11px;
  transition: transform .2s, border-color .2s;
}
.service-card:hover { transform: translateY(-4px); border-color: var(--cyan); }
.service-number { position: absolute; right: 17px; top: 12px; color: #7693ae; font-size: 11px; }
.service-icon { font-size: 27px; color: var(--cyan); margin: 8px 0; }
.service-card h3 { font-size: 17px; margin: 7px 0; }
.service-card p { font-size: 12px; color: var(--muted); margin-bottom: 0; }

.about { background: #0a2038; border-block: 1px solid var(--line); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 65px; }
.about-grid h2 { max-width: 480px; }
.value { display: flex; gap: 18px; padding: 14px 0; border-top: 1px solid var(--line); }
.value b { color: var(--cyan); font-size: 12px; }
.value strong, .value small { display: block; }
.value strong { font-size: 13px; }
.value small { color: var(--muted); font-size: 11px; }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.article-card {
  display: flex; flex-direction: column; min-height: 250px;
  overflow: hidden; background: var(--navy2);
  border: 1px solid var(--line); border-radius: 11px;
}
.article-art {
  height: 95px; display: grid; place-items: center;
  color: var(--cyan); font-size: 30px;
  background: linear-gradient(135deg, #124367, #07182e);
}
.article-content { display: flex; flex: 1; flex-direction: column; padding: 18px; }
.article-meta { color: var(--cyan); font-size: 10px; text-transform: uppercase; letter-spacing: 1px; }
.article-content h3 { font-size: 15px; line-height: 1.5; margin: 8px 0; }
.article-content p { color: var(--muted); font-size: 12px; margin: 0 0 15px; }
.article-content a { margin-top: auto; color: var(--cyan); font-size: 12px; font-weight: 700; }

.resources { background: #0a2038; }
.resource-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
.resource-card { display: block; padding: 19px; border: 1px solid var(--line); border-radius: 9px; background: var(--navy2); }
.resource-card:hover { border-color: var(--cyan); }
.resource-icon { display: block; color: var(--cyan); font-size: 23px; margin-bottom: 7px; }
.resource-card strong { display: block; font-size: 13px; }
.resource-card small { display: block; color: var(--muted); font-size: 11px; margin-top: 5px; }
.hint { color: var(--muted); font-size: 11px; }

.contact-box {
  display: grid; grid-template-columns: 1fr 1fr; gap: 35px;
  align-items: center; padding: 32px;
  background: linear-gradient(120deg, #10314f, #0b2038);
  border: 1px solid rgba(0, 229, 255, .3); border-radius: 13px;
}
.contact-details { display: flex; flex-direction: column; gap: 9px; font-size: 12px; }
.contact-details span, .contact-details small { color: var(--muted); }
.contact-details a { color: var(--cyan); font-weight: 700; }
footer { border-top: 1px solid var(--line); padding: 20px 0; color: var(--muted); font-size: 11px; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 15px; }
.footer-brand { font-size: 20px; font-weight: 800; color: var(--white); }

@media (max-width: 850px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 550px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .resource-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .nav { min-height: 68px; }
  .brand img { width: 43px; height: 43px; }
  .menu-toggle { display: block; }
  #navLinks {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    padding: 20px 5%; background: var(--navy);
    border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start; gap: 17px;
  }
  #navLinks.open { display: flex; }
  .hero { padding: 55px 0; }
  .section { padding: 55px 0; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 12px; }
  .service-grid, .article-grid, .about-grid, .contact-box { grid-template-columns: 1fr; }
  .contact-box { padding: 22px; }
  .tech-orbit { height: 230px; }
  .orbit-a { width: 175px; height: 175px; }
  .orbit-b { width: 230px; height: 115px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 5px; }
}