:root {
  color-scheme: dark;
  --bg: #07111f;
  --ink: #f5f8ff;
  --muted: #a7b5c9;
  --line: rgba(167, 181, 201, .2);
  --cyan: #7cf3c5;
  --lime: #a8ff60;
}

* { box-sizing: border-box; }

html { min-width: 320px; background: var(--bg); }

body {
  min-height: 100svh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(124, 243, 197, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 243, 197, .035) 1px, transparent 1px),
    radial-gradient(circle at 78% 34%, rgba(39, 123, 122, .22), transparent 30rem),
    var(--bg);
  background-size: 48px 48px, 48px 48px, auto, auto;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

.shell {
  width: min(100% - 2.5rem, 1180px);
  min-height: 100svh;
  margin-inline: auto;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  padding-block: 1.6rem;
  font-weight: 760;
  font-size: 1.05rem;
  letter-spacing: -.035em;
}

.brand-mark {
  position: relative;
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--cyan);
  border-radius: 50%;
}

.brand-mark::before,
.brand-mark::after,
.brand-mark i {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  width: .32rem;
  height: .32rem;
  border-radius: 50%;
  background: var(--lime);
  transform: translate(-50%, -50%);
}

.brand-mark::before { transform: translate(-1rem, -.16rem); }
.brand-mark::after { transform: translate(.65rem, -.16rem); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, .62fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 8rem);
  padding-block: clamp(4rem, 10vh, 8rem);
}

.copy { max-width: 760px; }

.eyebrow {
  margin: 0 0 2rem;
  color: var(--cyan);
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(3.4rem, 8.3vw, 7.6rem);
  line-height: .91;
  letter-spacing: -.072em;
  font-weight: 780;
}

h1 em { color: var(--cyan); font-style: normal; }

.lead {
  max-width: 690px;
  margin: clamp(2rem, 5vw, 3.5rem) 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.7vw, 1.35rem);
}

.capabilities {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin: 2.25rem 0 0;
  padding: 0;
  list-style: none;
}

.capabilities li {
  padding: .58rem .85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #dbe6f5;
  font-size: .85rem;
}

.signal {
  position: relative;
  justify-self: center;
  width: min(34vw, 390px);
  aspect-ratio: 1;
}

.orbit,
.core {
  position: absolute;
  inset: 50% auto auto 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit { border: 1px solid var(--line); }
.orbit-one { width: 100%; height: 100%; }
.orbit-two { width: 65%; height: 65%; border-color: rgba(124, 243, 197, .44); }
.core {
  width: 24%;
  height: 24%;
  background: var(--lime);
  box-shadow: 0 0 90px rgba(124, 243, 197, .55);
}

.signal::before,
.signal::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 24px rgba(124, 243, 197, .7);
}

.signal::before { width: 1rem; height: 1rem; top: 16%; left: 19%; }
.signal::after { width: .65rem; height: .65rem; right: 10%; bottom: 30%; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.35rem 1.7rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .82rem;
}

footer p { margin: 0; }

.status-dot {
  display: inline-block;
  width: .55rem;
  height: .55rem;
  margin-right: .45rem;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 14px rgba(168, 255, 96, .55);
}

@media (max-width: 760px) {
  .shell { width: min(100% - 2rem, 1180px); }
  .hero { grid-template-columns: 1fr; padding-block: 3rem 5rem; }
  .signal { grid-row: 1; width: min(62vw, 270px); }
  h1 { font-size: clamp(3.2rem, 15vw, 5.2rem); }
  footer { flex-direction: column; gap: .35rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}