/* Case Converter CSS */
#caseInput {
  width: 100%;
  padding: 0.85rem;
  border: 1px solid var(--border-color, #cbd5e1);
  border-radius: var(--radius-sm, 8px);
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.5;
  background: var(--surface, #ffffff);
  resize: vertical;
  margin-bottom: 1rem;
}

.btn-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

@media (max-width: 600px) {
  .btn-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}