body {
  font-family: Arial, sans-serif;
  max-width: 520px;
  margin: 50px auto;
  padding: 20px;
}

h1 {
  text-align: center;
}

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

select {
  flex: 1;
  padding: 10px;
  font-size: 16px;
}

button {
  width: 100%;
  padding: 16px;
  font-size: 18px;
  cursor: pointer;
}

#status {
  margin-top: 20px;
  padding: 12px;
  background: #eee;
  border-radius: 8px;
  min-height: 20px;
}

#audioContainer {
  margin-top: 20px;
}

.conference-test {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid #ccc;
}

.conference-test input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px;
  margin-bottom: 8px;
  font-size: 15px;
}

.conference-test button {
  margin-bottom: 8px;
}

#conferenceState {
  margin-top: 10px;
  padding: 12px;
  background: #f3f3f3;
  border-radius: 8px;
  white-space: pre-line;
}