body {
  margin: 0;
  background-color: #000;
  font-family: 'Segoe UI', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.logo-container {
  text-align: center;
}

.core {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, #00ffff, #0077ff);
  box-shadow: 0 0 15px #00ffff, 0 0 30px #00aaff;
  animation: pulse-core 2s infinite ease-in-out;
  margin: 0 auto;
}

.ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120px;
  height: 120px;
  border: 2px solid #00ffff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: pulse-ring 2.5s infinite ease-in-out;
  box-shadow: 0 0 12px #00ffff;
}

.ring::after {
  content: "";
  position: absolute;
  width: 160px;
  height: 160px;
  top: -20px;
  left: -20px;
  border: 2px dashed #0077ff;
  border-radius: 50%;
  animation: pulse-ring-2 3s infinite ease-in-out;
  opacity: 0.5;
}

.logo-text {
  margin-top: 30px;
  font-size: 32px;
  color: #00ffff;
  text-shadow: 0 0 8px #00ffff, 0 0 18px #0077ff;
  animation: flicker 2.5s infinite;
  letter-spacing: 3px;
}

@keyframes pulse-core {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 15px #00ffff;
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 0 25px #00aaff;
  }
}

@keyframes pulse-ring {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0.6;
  }
}

@keyframes pulse-ring-2 {
  0%, 100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.3);
    opacity: 0.2;
  }
}

@keyframes flicker {
  0%, 100% { opacity: 1; }
  45%, 55% { opacity: 0.85; }
  50% { opacity: 0.6; }
}