/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 110px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--color-secondary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: 999;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-to-top:hover {
  background: var(--color-secondary-hover);
  transform: translateY(-5px);
}


/* Form Validation Styles */
input.error,
textarea.error {
  border-color: var(--color-error) !important;
  background-color: rgba(239, 68, 68, 0.05);
}

.error-message {
  display: block;
  color: var(--color-error);
  font-size: var(--font-size-xs);
  margin-top: var(--space-2);
  font-weight: var(--font-weight-medium);
}

.announcement-close {
  position: absolute;
  right: var(--space-5);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-neutral-900);
  font-size: 1.2rem;
  cursor: pointer;
  padding: var(--space-2);
  line-height: 1;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.announcement-close:hover {
  opacity: 1;
}

/* Loading States */
.btn-loading {
  position: relative;
  pointer-events: none;
  opacity: 0.7;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* Smooth transitions for all interactive elements */
a, button, input, textarea, select {
  transition: all var(--transition-fast);
}

/* Focus visible for better keyboard navigation */
*:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

@media (max-width: 640px) {
  .scroll-to-top {
    bottom: 90px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: 1rem;
  }
}