/* Minimal professional loading screen */
.app-loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.loading-content {
  text-align: center;
  color: #1a73e8;
}

.logo-container {
  margin-bottom: 1rem;
}

.loading-logo {
  width: 40px;
  height: 40px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.loading-spinner {
  margin: 1.5rem 0;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
  margin: 0 auto;
}

.loading-text {
  font-size: 1.1rem;
  opacity: 0.9;
  margin: 0;
  font-weight: 500;
  letter-spacing: 0.5px;
}

.error-container {
  text-align: center;
  color: white;
  max-width: 400px;
  padding: 2rem;
  animation: fadeInUp 0.6s ease-out;
}

.error-container h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.error-container p {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.error-container button {
  background: white;
  color: #667eea;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.error-container button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.error-container button:active {
  transform: translateY(0);
}

/* Animations */
@keyframes spin {
  to { 
    transform: rotate(360deg); 
  }
}

@keyframes pulse {
  0%, 100% { 
    opacity: 1; 
    transform: scale(1);
  }
  50% { 
    opacity: 0.7; 
    transform: scale(1.05);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive design */
@media (max-width: 480px) {
  .loading-container {
    padding: 1rem;
  }
  
  .loading-logo {
    width: 60px;
    height: 60px;
  }
  
  .loading-text {
    font-size: 1rem;
  }
  
  .error-container {
    padding: 1.5rem;
  }
  
  .error-container h2 {
    font-size: 1.3rem;
  }
}