body, html {
  margin: 0;
  padding: 0;
  overflow: hidden;
  width: 100%;
  height: 100vh;
}

canvas {
  display: block;
  cursor: crosshair; 
  margin-top: 20px;
  border: 1px solid #ccc;
  position: relative;
}

body {
  font-family: Helvetica, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: #f0f0f0;
}

canvas {
  margin-top: 1px;
  border: 1px solid #ccc;
}

.controls {
  margin-top: 2px;
}

.controls button, .controls input[type=range] {
  margin: 5px;
  padding: 5px;
  font-size: 12px;
  border: 1px solid #cfcfcf;
  border-radius: 65px;
  background-color: #fff;
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
}

.controls button:active, .controls input[type=range]:active {
  background-color: #003bfe;
  color: #fff;
}

.controls input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 200px;
  height: 1px;
  background: #ddd;
  outline: none;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.controls input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: #ffffff;
  cursor: pointer;
  border-radius: 50%;
  transition: background-color 0.3s;
}

.controls input[type=range]::-webkit-slider-thumb:hover {
  background: #3206f7;
}

.controls input[type=range]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: #ffffff;
  cursor: pointer;
  border-radius: 50%;
  transition: background-color 0.3s;
}

.controls input[type=color] {
  margin: 2px;
  padding: 1px;
  font-size: 1px;
  border: 1px solid #cfcfcf;
  border-radius: 2px;
  background-color: #fff;
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
}

.controls .selected {
  background-color: #003bfe;
  color: #fff;
}

#video {
  display: block;
  margin: 0 auto;
}

#emotions {
  margin: 20px auto;
  width: 300px;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-family: Arial, sans-serif;
}