:root {
  --bg: #050813;
  --bg2: #0a1227;
  --cyan: #60eaff;
  --blue: #6b8fff;
  --text: #e8f2ff;
  --muted: #95a9cc;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; }

body {
  overflow: hidden;
  font-family: Inter, Segoe UI, system-ui, sans-serif;
  background: radial-gradient(1200px 700px at 20% -10%, #1a3672 0%, transparent 55%),
              radial-gradient(900px 600px at 100% 0, #182e61 0%, transparent 50%),
              linear-gradient(160deg, var(--bg), var(--bg2));
  color: var(--text);
}

#signal-grid {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
}

.overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  text-align: center;
  gap: 10px;
  pointer-events: none;
}

.brand {
  letter-spacing: .2em;
  font-size: .78rem;
  font-weight: 700;
  color: #bfe7ff;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 5rem);
  line-height: .95;
  text-shadow: 0 0 40px rgba(107,143,255,.45);
}

p {
  margin: 0;
  color: var(--muted);
  letter-spacing: .08em;
  text-transform: lowercase;
}

.cta {
  margin-top: 8px;
  pointer-events: auto;
  text-decoration: none;
  color: #03111c;
  background: linear-gradient(135deg, var(--cyan), #9ed4ff);
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 700;
  box-shadow: 0 0 30px rgba(96,234,255,.35);
}

@media (max-width: 700px) {
  h1 { font-size: clamp(1.6rem, 9vw, 2.6rem); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}