body {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 20px;
  font-family: Arial, sans-serif;
}

.row {
  margin-bottom: 16px;
}

label {
  display: inline-block;
  width: 100px;
}

input {
  width: 300px;
  padding: 8px;
}

button {
  padding: 8px 16px;
  margin-right: 8px;
  cursor: pointer;
}

#status {
  font-weight: bold;
  color: gray;
}

#log {
  min-height: 250px;
  padding: 12px;
  color: #eee;
  background: #222;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.video-preview {
  width: 320px;
  background: black;
}