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

.container {
  text-align: center;
  max-width: 400px;
}

h1 {
  font-size: 3em;
  margin-bottom: 1rem;
  color: #ddd;
}

.tagline {
  margin-top: 1rem;
  color: #aaa;
  font-style: italic;
}

.circle-visualizer {
  margin: 0 auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 4px solid #7f5af0;
  box-shadow: 0 0 15px #7f5af0;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 15px #7f5af0;
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 0 30px #a078ff;
  }
}

audio {
  display: none;
}