button {
  margin: 10px;
  padding: 10px 20px;
  font-size: 14px;
  background-color: #b60a29; /* lacivert */
  color: #f3ef74;               /* sarı yazı */
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #078531; /* koyu mavi */
}