Animated Loading Spinner

.spinner-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  font-family: 'Arial', sans-serif;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  color: #666;
  font-size: 16px;
  margin: 0;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

// Optional: Show/hide spinner programmatically
function showSpinner() {
  document.querySelector('.spinner-container').style.display = 'flex';
}

function hideSpinner() {
  document.querySelector('.spinner-container').style.display = 'none';
}

// Example usage:
// showSpinner();
// setTimeout(hideSpinner, 3000); // Hide after 3 seconds