body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #1e1e1e;
  color: white;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
  background: #111;
}

.controls button {
  margin-left: 8px;
  padding: 6px 12px;
  cursor: pointer;
}

.editor-container {
  display: flex;
  gap: 10px;
  padding: 10px;
}

.editor {
  flex: 1;
  display: flex;
  flex-direction: column;
}

textarea {
  height: 200px;
  resize: none;
  padding: 10px;
  background: #2d2d2d;
  color: white;
  border: none;
  outline: none;
  font-family: monospace;
}

iframe {
  width: 100%;
  height: 250px;
  border: none;
  background: white;
}

.light-mode {
  background: #f5f5f5;
  color: black;
}

.light-mode textarea {
  background: white;
  color: black;
}