:root {
  --bg: #050505;
  --fg: rgba(255, 255, 255, 0.88);
  --muted: rgba(255, 255, 255, 0.32);
  --line: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: Arial, Helvetica, sans-serif;
  overflow: hidden;
}

body {
  background:
    radial-gradient(circle at 50% 50%, rgba(255,255,255,0.03), transparent 30%),
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.02), transparent 25%),
    radial-gradient(circle at 80% 80%, rgba(255,255,255,0.015), transparent 25%),
    #050505;
}

.page {
  position: relative;
  width: 100%;
  height: 100%;
}

.noise {
  position: absolute;
  inset: 0;
  opacity: 0.035;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 4px 4px, 4px 4px;
  mix-blend-mode: soft-light;
}

.frame {
  position: absolute;
  left: 0;
  width: 100%;
  padding: 22px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  z-index: 3;
}

.frame.top {
  top: 0;
}

.frame.bottom {
  bottom: 0;
}

.hero {
  position: relative;
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
}

.orbital {
  position: relative;
  width: min(52vw, 520px);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  filter: drop-shadow(0 0 50px rgba(255,255,255,0.07));
}

.ring {
  position: absolute;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50%;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

.ring-a {
  width: 100%;
  height: 100%;
  border-color: rgba(255,255,255,0.10);
  animation: spin 18s infinite;
}

.ring-b {
  width: 72%;
  height: 72%;
  border-color: rgba(255,255,255,0.16);
  animation: spinReverse 12s infinite;
}

.ring-c {
  width: 38%;
  height: 38%;
  border-color: rgba(255,255,255,0.22);
  animation: pulse 5s ease-in-out infinite;
}

.core {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  box-shadow:
    0 0 18px rgba(255,255,255,0.9),
    0 0 42px rgba(255,255,255,0.35);
  z-index: 2;
}

.glow {
  position: absolute;
  width: 22%;
  height: 22%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.14), transparent 70%);
  animation: breathe 6s ease-in-out infinite;
}

@keyframes spin {
  from { transform: rotate(0deg) scale(1); }
  to { transform: rotate(360deg) scale(1); }
}

@keyframes spinReverse {
  from { transform: rotate(360deg) scale(1); }
  to { transform: rotate(0deg) scale(1); }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(0.96);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.04);
    opacity: 1;
  }
}

@keyframes breathe {
  0%, 100% {
    transform: scale(0.92);
    opacity: 0.35;
  }
  50% {
    transform: scale(1.12);
    opacity: 0.9;
  }
}

@media (max-width: 768px) {
  .orbital {
    width: min(72vw, 360px);
  }

  .frame {
    padding: 18px 16px;
    font-size: 9px;
    letter-spacing: 0.22em;
  }
}