#text-tool {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 2rem;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  font-family: "Segoe UI", sans-serif;
}
#text-tool h2 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.75rem;
  color: #333;
}
#urlInput {
  width: 100%;
  padding: 0.8rem;
  margin-bottom: 1rem;
  font-size: 1rem;
  border: 1px solid #FF8A08;
  border-radius: 6px;
}
textarea {
  width: 100%;
  height: 200px;
  padding: 1rem;
  font-size: 1rem;
  border: 1px solid #FF8A08;
  border-radius: 8px;
  resize: vertical;
  margin-bottom: 1rem;
}
.button-group {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.button-group button {
  background-color: #FF8A08;
  border: none;
  color: white;
  padding: 0.6rem 1.2rem;
  font-size: 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.button-group button:hover {
  background-color: #e97706;
}
input[type="checkbox"] {
  transform: scale(1.2);
  margin-right: 0.4rem;
}
#uniqueWordsOutput,
#keywordDensityOutput {
  border: 1px solid #ddd;
  padding: 1rem;
  border-radius: 6px;
  background-color: #f9f9f9;
  font-size: 0.95rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.5rem 1rem;
  margin-top: 1rem;
}