button {
  padding: 0.625rem 1.25rem;
  font-weight: inherit;
  font-size: 1rem;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  position: relative;
}

button:hover {
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.2);
}

#interactiveModeBtn,
#preparedModeBtn {
  margin: 10px;
  color: black;
  background-color: #d9d9d9;
}

#interactiveModeBtn:hover,
#preparedModeBtn:hover {
  background-color: #45a049;
  color: white;
}

#interactiveModeBtn.active,
#preparedModeBtn.active {
  background-color: #45a049;
  color: #fff;
  transform: translateY(2px);
}

#recordBtn,
#stopRecordingBtn,
#downloadBtn,
#playBtn,
#stopBtn {
  margin: 5px;
  color: white;
  background-color: #a3a3a3;
}

#recordBtn:hover,
#stopRecordingBtn:hover,
#downloadBtn:hover,
#playBtn:hover,
#stopBtn:hover {
  background-color: #2b84a7;
}

#recordBtn.active,
#stopRecordingBtn.active,
#downloadBtn.active,
#playBtn.active,
#stopBtn.active {
  background-color: #2b84a7;
  transform: translateY(2px);
}

label[for="speed"],
label[for="fileInput"] {
  margin-right: 20px;
  font-size: 17px;
}

#preparedButtons {
  margin: 20px;
  line-height: 50px;
}

#progressBar {
  width: 50vw;
  height: 20px;
  border-radius: 10px;
  background: #f3f3f3;
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.1);
  opacity: 1;
  transition: opacity 0.3s ease, width 0.3s ease-in-out;
}

#progressBar::-webkit-progress-bar {
  background-color: #f3f3f3;
  border-radius: 10px;
}

#progressBar::-webkit-progress-value {
  border-radius: 10px;
  background: linear-gradient(90deg, #4caf50, #81c784);
  transition: width 0.3s ease-in-out;
}

#progressBar::-moz-progress-bar {
  border-radius: 10px;
  background: linear-gradient(90deg, #4caf50, #81c784);
  transition: width 0.3s ease-in-out;
}

#progressBar[value="0"]::-webkit-progress-value {
  background-color: #ff3b30;
}

#progressBar[value="1"]::-webkit-progress-value {
  background-color: #4caf50;
}

#progressBar[value="0"]::-moz-progress-bar {
  background-color: #ff3b30;
}

#progressBar[value="1"]::-moz-progress-bar {
  background-color: #4caf50;
}