button {
  border: none;
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  transition: background-color 0.2s ease;
  min-width: 80px;
  height: 36px;
  text-align: center;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  white-space: nowrap;
  box-sizing: border-box;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: grayscale(0.3);
}

.save-btn {
  background-color: #22c55e;
}

.save-btn:hover:not(:disabled) {
  background-color: #16a34a;
}

.save-preset-btn {
  background-color: #3b82f6;
}

.save-preset-btn:hover:not(:disabled) {
  background-color: #2563eb;
}

.apply-btn {
  background-color: #3b82f6;
  padding: 8px 16px;
}

.apply-btn:hover:not(:disabled) {
  background-color: #2563eb;
}

.filter-btn {
  background-color: #a855f7;
  padding: 6px 12px;
}

.filter-btn:hover:not(:disabled) {
  background-color: #9333ea;
}

.clear-btn {
  background-color: #e5e7eb;
  color: #374151;
  padding: 6px 12px;
  margin-right: 4px;
}

.clear-btn:hover:not(:disabled) {
  background-color: #d1d5db;
}

.refresh-btn {
  background-color: #facc15;
  color: #854d0e;
  padding: 6px 12px;
  margin-left: 12px;
  margin-right: 4px;
}

.refresh-btn:hover:not(:disabled) {
  background-color: #eab308;
}

.delete-btn {
  background-color: #ef4444;
  padding: 8px 16px;
  font-size: 14px;
}

.delete-btn:hover:not(:disabled) {
  background-color: #dc2626;
}

.query-btn {
  background-color: #a855f7;
  color: white;
}

.query-btn:hover:not(:disabled) {
  background-color: #9333ea;
}

.clear-query-btn {
  background-color: #e5e7eb;
  color: #374151;
}

.clear-query-btn:hover:not(:disabled) {
  background-color: #d1d5db;
}

.select-query-btn {
  background-color: #22c55e;
  color: white;
}

.select-query-btn:hover:not(:disabled) {
  background-color: #16a34a;
}

.view-query-btn {
  background-color: #3b82f6;
  color: white;
}

.view-query-btn:hover:not(:disabled) {
  background-color: #2563eb;
}

.logout-btn {
  background-color: #ef4444;
  padding: 8px 16px;
  font-size: 14px;
  color: white;
}

.logout-btn:hover:not(:disabled) {
  background-color: #dc2626;
}