body.light { background: #f9f9f9; color: #000; }
body.dark { background: #1e1e1e; color: #fff; }
.converter-box {
  background: #fff;
  color: #000;
  border-radius: 15px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.dark .converter-box {
  background: #2c2c2c;
  color: #fff;
}
.toggle-switch {
  position: absolute; right: 20px; top: 20px;
}
#google_translate_element select {
  background: #f8f9fa;
  border: 1px solid #ccc;
  padding: 3px 8px;
  border-radius: 5px;
}