body {
  margin: 0;
  background: black; /* scene fills this */
  font-family: 'Trebuchet MS', sans-serif;
  overflow: hidden;
  color: white;
}

#container {
  width: 100vw;
  height: 80vh;
  display: block;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.6);
}

button {
  padding: 10px 18px;
  border-radius: 10px;
  border: none;
  font-size: 15px;
  cursor: pointer;
  font-weight: bold;
  transition: transform 0.2s, background 0.3s;
}

/* 🎤 Voice Buttons */
#startBtn, #stopBtn {
  background: #2196f3; /* blue */
  color: white;
}
#startBtn:hover, #stopBtn:hover {
  background: #1976d2;
  transform: scale(1.05);
}

/* 🐶 Dog Action Buttons */
#actionBtn, #boneBtn, #danceBtn, #sitBtn, #layBtn, #runBtn, #barkBtn {
  background: #ff9800; /* orange */
  color: white;
}
#actionBtn:hover, #boneBtn:hover, #danceBtn:hover, 
#sitBtn:hover, #layBtn:hover, #runBtn:hover, #barkBtn:hover {
  background: #e68900;
  transform: scale(1.05);
}

/* 🌍 World Toggle Button */
#toggleBtn {
  background: #4caf50; /* green */
  color: white;
}
#toggleBtn:hover {
  background: #388e3c;
  transform: scale(1.05);
}