body {
  font-family: sans-serif;
  background: #f0f0f0;
  padding: 2em;
}

.container {
  background: white;
  padding: 1.5em;
  max-width: 600px;
  margin: auto;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

fieldset {
  margin-bottom: 1em;
  border: 1px solid #ccc;
  padding: 1em;
  border-radius: 8px;
}

label {
  display: block;
  margin-bottom: 0.5em;
}

input, select, button {
  margin-left: 0.5em;
  padding: 0.3em;
}

.symbol-group {
	display: flex;
}

#result {
	word-break: break-all;
}