.btn {
  position: relative;
  padding: 0.5rem 1rem;
  font-size: 1.1rem;
  font-weight: 150;
  color: #FF0000;
  background: none;
  border: none;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.4s ease;
  min-width: 50px;
  z-index: 10;
}

.glow-vibe {
  background: #FF0000;
  border: 2px solid #0ff;
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
  overflow: visible;
}

.glow-vibe::before,
.glow-vibe::after {
  content: "";
  position: absolute;
  inset: -4px;
  border: 2px solid #0ff;
  border-radius: inherit;
  animation: pulseOut 2s ease-out infinite;
  opacity: 0;
}

.glow-vibe::after {
  animation-delay: 1s;
}

@keyframes pulseOut {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}