* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #171717;
  color: #f2f2f2;
}

.layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  height: 100vh;
}

.left-panel {
  border-right: 1px solid #2d2d2d;
  padding: 16px;
  overflow-y: auto;
}

.viewer-panel {
  min-width: 0;
}

#viewerContainer {
  width: 100%;
  height: 100%;
}

.controls {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

button {
  padding: 8px 12px;
  border: 1px solid #3d3d3d;
  background: #242424;
  color: #fff;
  cursor: pointer;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.panel {
  border: 1px solid #333;
  background: #202020;
  padding: 10px;
  margin-bottom: 10px;
}

h1 {
  margin-top: 0;
  font-size: 20px;
}

h2 {
  margin: 0 0 8px;
  font-size: 15px;
}

pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 13px;
}

#replyAudio {
  width: 100%;
}