#base64Input {
  width: 100%;
  min-height: 360px;
  padding: 16px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font: 14px/1.6 monospace;
  resize: vertical;
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.actions button {
  padding: 10px 18px;
  border: 0;
  border-radius: 6px;
  color: #fff;
  background: #2563eb;
  cursor: pointer;
}

.actions button:hover {
  background: #1d4ed8;
}

#message {
  min-height: 24px;
  color: #2563eb;
}