html, body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

.container {
  max-width: 1200px;
  margin: 5px;
  text-align: left;
}

.video-container {
  display: flex;
  gap: 20px;
  margin: 10px 0;
}

.video-container > div, 
.video-container > video {
  flex: 1;
  position: relative;
}

.button-container {
  display: flex;
  gap: 20px;
  margin-bottom: 10px;
}

.button-pair {
  display: flex;
  gap: 10px;
  flex: 1;
}

.button-pair button {
  flex: 1;
  margin: 0;
}

.video-wrapper {
  position: relative;
}

#instructionVideo {
  width: 600px;
  height: 450px;
  object-fit: cover;
}

#videoTime {
  text-align: center;
  padding: 8px;
  font-size: 24px;
  font-weight: bold;
}

#poseCanvas {
  pointer-events: none;
  z-index: 10;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  margin: 10px 0;
  cursor: pointer;
  background: #4CAF50;
  color: white;
  border: none;
  border-radius: 4px;
  display: block;
}

canvas {
  margin: 10px 0;
  border: 1px solid #ccc;
  width: 600px;
  height: 600px;
  display: block;
}

#label-container {
  margin-top: 20px;
  font-size: 32px;
  font-weight: bold;
  line-height: 1.5;
}

#label-container div {
  margin: 10px 0;
}