body {
  font-family: Arial, sans-serif;
  margin: 2rem;
  background: #f9f9f9;
  color: #222;
}

h1 {
  margin-bottom: 1rem;
}

#input-area {
  margin-bottom: 2rem;
}

textarea {
  width: 100%;
  max-width: 800px;
  font-family: monospace;
  font-size: 1rem;
  padding: 0.5rem;
  box-sizing: border-box;
}

button {
  margin-top: 0.5rem;
  padding: 0.5rem 1.5rem;
  font-size: 1rem;
  cursor: pointer;
  background: #4a90d9;
  color: white;
  border: none;
  border-radius: 4px;
}

button:hover {
  background: #357abd;
}

#output-area {
  max-width: 900px;
}

.constituent-block {
  background: white;
  border: 1px solid #ccc;
  border-radius: 6px;
  margin-bottom: 1.5rem;
  padding: 1rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

table {
  border-collapse: collapse;
  width: 100%;
}

th, td {
  text-align: left;
  padding: 0.4rem 0.8rem;
  border-bottom: 1px solid #eee;
}

th {
  width: 160px;
  color: #555;
  font-weight: bold;
}

.constituent-title {
  font-weight: bold;
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.bracket {
  font-family: monospace;
  background: #eef3fb;
  border-radius: 3px;
  padding: 0 3px;
}

.error {
  color: red;
  font-weight: bold;
}