.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  border-bottom: 1px solid #eee;
}

.tab-btn {
  padding: 10px 18px;
  background: none;
  border: none;
  font-size: 14px;
  color: #666;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  color: #185fa5;
  border-bottom-color: #185fa5;
  font-weight: 600;
}

#textInput {
  width: 100%;
  height: 140px;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-family: monospace;
  font-size: 13px;
  resize: vertical;
  margin-bottom: 14px;
}

.action-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.output-box {
  padding: 14px;
  background: white;
  border: 1px solid #eee;
  border-radius: 8px;
  min-height: 60px;
  font-family: monospace;
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-word;
}