body {
  margin: 0;
  padding: 0;
  background-color: #fdfcf7;
  font-family: 'Futura', sans-serif;
  color: #1e1e1e;
  transition: background-color 0.5s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
}

#overlay {
  padding: 2rem 3rem;
  border-radius: 20px;
  text-align: center;
  background-color: rgba(20, 20, 30, 0.1);
  backdrop-filter: blur(10px);
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.1);
}

#text-display {
  font-size: 2.5rem;
  margin-top: 1rem;
  min-height: 3rem;
  text-transform: lowercase;
}

#symbol-output {
  font-size: 3rem;
  margin-bottom: 1rem;
}

#play-btn {
  font-size: 1.5rem;
  background: #ff69b4;
  color: black;
  padding: 0.5rem 2rem;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  margin-top: 2rem;
  transition: background 0.4s ease;
}

#play-btn.clicked {
  background: #66ccff;
}

#ztml-link {
  margin-top: 2rem;
  font-size: 1.1rem;
  text-align: center;
}

#ztml-link a {
  color: hotpink;
  font-weight: normal;
  text-decoration: none;
}

#ztml-link a:hover {
  text-decoration: underline;
}

#ztml-subtitle {
  margin-top: 0.2rem;
  font-size: 0.95rem;
  color: #666;
}