/* Utility Classes and Helper Styles
 * 
 * Reusable utility classes and special-purpose styles including the empty state
 * message, storage warnings, and other helper classes used throughout the app.
 */

/* Empty board message */
.emptyState {
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.05), rgba(157, 0, 255, 0.05));
  border-radius: var(--radius-xl);
  border: 3px dashed rgba(0, 240, 255, 0.3);
  box-shadow: var(--shadow-lg), inset 0 0 60px rgba(0, 240, 255, 0.05);
  transition: all var(--transition-base);
  animation: gentlePulse 3s ease-in-out infinite;
}
@keyframes gentlePulse {
  0%, 100% { 
    border-color: rgba(0, 240, 255, 0.3);
    box-shadow: var(--shadow-lg), inset 0 0 60px rgba(0, 240, 255, 0.05);
  }
  50% { 
    border-color: rgba(157, 0, 255, 0.3);
    box-shadow: var(--shadow-lg), inset 0 0 60px rgba(157, 0, 255, 0.05);
  }
}
.emptyState p {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  margin: 0;
  background: linear-gradient(135deg, var(--accent-neon-cyan), var(--accent-neon-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.storageWarning {
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-lg);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--color-warning);
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.2);
}
.storageWarning p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-warning);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: var(--font-weight-medium);
}
.storageWarning i {
  font-size: var(--font-size-lg);
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.loading {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
*:focus-visible {
  outline: 2px solid var(--accent-neon-cyan);
  outline-offset: 2px;
}
::selection {
  background: rgba(0, 240, 255, 0.3);
  color: var(--text-primary);
}
::-moz-selection {
  background: rgba(0, 240, 255, 0.3);
  color: var(--text-primary);
}
/* Utility class for hiding elements */
.hidden {
  display: none !important;
}

/* Responsive utilities */
@media (max-width: 768px) {
  .emptyState {
    padding: var(--space-xl) var(--space-lg);
  }
  
  .emptyState p {
    font-size: var(--font-size-lg);
  }
}

@media (max-width: 430px) {
  .emptyState {
    padding: var(--space-lg) var(--space-md);
    border-width: 2px;
  }
  
  .emptyState p {
    font-size: var(--font-size-base);
  }
  
  .storageWarning {
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-md);
  }
  
  .storageWarning p {
    font-size: 13px;
  }
}

@media (max-width: 375px) {
  .emptyState {
    padding: var(--space-md);
  }
  
  .emptyState p {
    font-size: var(--font-size-sm);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}