:root {
  --bg: #06101d;
  --surface: rgba(15, 30, 49, 0.72);
  --surface-border: rgba(152, 190, 219, 0.18);
  --text: #f5f8fb;
  --muted: #9fb0bf;
  --accent: #41e6bd;
  --accent-2: #65a9ff;
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 15%, rgba(32, 116, 155, 0.17), transparent 34rem),
    linear-gradient(135deg, #050c16 0%, var(--bg) 55%, #081725 100%);
  font-family: Inter, Arial, sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .18;
  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: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}

.ambient {
  position: fixed;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}

.ambient-one {
  width: 28rem;
  height: 28rem;
  right: -9rem;
  top: -12rem;
  background: rgba(65, 230, 189, .13);
}

.ambient-two {
  width: 24rem;
  height: 24rem;
  left: -12rem;
  bottom: -10rem;
  background: rgba(101, 169, 255, .12);
}

.site-header,
.hero,
footer {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  min-height: 112px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: var(--text);
  text-decoration: none;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.32rem;
  letter-spacing: .12em;
}

.brand-mark {
  display: grid;
  grid-template-columns: repeat(3, 5px);
  align-items: end;
  gap: 3px;
  width: 21px;
  height: 25px;
}

.brand-mark span {
  display: block;
  border-radius: 4px;
  background: var(--accent);
}

.brand-mark span:nth-child(1) { height: 12px; }
.brand-mark span:nth-child(2) { height: 23px; }
.brand-mark span:nth-child(3) { height: 17px; }

.status,
.live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.status i,
.live i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px var(--accent);
}

.hero {
  min-height: calc(100vh - 188px);
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  gap: clamp(48px, 8vw, 110px);
  align-items: center;
  padding: 40px 0 80px;
}

.eyebrow {
  margin: 0 0 24px;
  color: var(--accent);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(3.1rem, 7vw, 6.9rem);
  line-height: .94;
  letter-spacing: -.055em;
}

.intro {
  max-width: 650px;
  margin: 32px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.7vw, 1.24rem);
  line-height: 1.75;
}

.services {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 35px;
}

.services span {
  padding: 9px 13px;
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  background: rgba(255,255,255,.025);
  color: #cbd6df;
  font-size: .79rem;
}

.contact {
  margin-top: 58px;
}

.contact p {
  margin: 0 0 9px;
  color: var(--muted);
  font-size: .83rem;
}

.contact a {
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 600;
  text-decoration-color: rgba(65, 230, 189, .55);
  text-underline-offset: 7px;
}

.signal-card {
  padding: 22px;
  border: 1px solid var(--surface-border);
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(15,31,50,.82), rgba(8,18,31,.68));
  box-shadow: 0 28px 85px rgba(0,0,0,.28);
  backdrop-filter: blur(16px);
}

.signal-top {
  display: flex;
  justify-content: space-between;
  color: #b9c8d3;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .11em;
}

.visual {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  margin: 12px auto;
}

.visual::before,
.visual::after {
  content: "";
  position: absolute;
  background: linear-gradient(90deg, transparent, rgba(65,230,189,.42), transparent);
}

.visual::before {
  width: 85%;
  height: 1px;
}

.visual::after {
  width: 1px;
  height: 85%;
  background: linear-gradient(transparent, rgba(65,230,189,.42), transparent);
}

.ring {
  position: absolute;
  border: 1px solid rgba(127, 178, 211, .2);
  border-radius: 50%;
}

.ring-one {
  width: 52%;
  height: 52%;
}

.ring-two {
  width: 78%;
  height: 78%;
  border-style: dashed;
  animation: spin 24s linear infinite;
}

.core {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 84px;
  height: 84px;
  border: 1px solid rgba(65,230,189,.55);
  border-radius: 24px;
  background: rgba(65,230,189,.08);
  box-shadow: 0 0 55px rgba(65,230,189,.12);
  color: var(--accent);
  font: 700 2.2rem "Space Grotesk", sans-serif;
}

.node {
  position: absolute;
  width: 11px;
  height: 11px;
  border: 2px solid #10243a;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 18px rgba(101,169,255,.8);
}

.node-one { top: 18%; left: 31%; }
.node-two { right: 13%; top: 51%; background: var(--accent); }
.node-three { bottom: 15%; left: 35%; }
.node-four { left: 13%; top: 48%; background: var(--accent); }

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--surface-border);
  border-radius: 13px;
  background: var(--surface-border);
}

.metrics div {
  display: grid;
  gap: 4px;
  padding: 14px;
  background: #0b1929;
}

.metrics strong {
  color: var(--accent);
  font-family: "Space Grotesk", sans-serif;
  font-size: .75rem;
}

.metrics span {
  color: #aebecb;
  font-size: .68rem;
}

footer {
  min-height: 76px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--surface-border);
  color: #718394;
  font-size: .75rem;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 840px) {
  .site-header, .hero, footer {
    width: min(100% - 32px, 680px);
  }

  .site-header { min-height: 90px; }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 55px;
  }

  .signal-card {
    max-width: 540px;
  }
}

@media (max-width: 520px) {
  .status { display: none; }

  h1 { font-size: clamp(2.9rem, 15vw, 4.25rem); }

  .hero { padding-top: 35px; }

  .contact { margin-top: 42px; }

  .signal-card { padding: 15px; }

  footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ring-two { animation: none; }
}