/* Utility classes, animations, and form styling */

/* Animation keyframes */
@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Response validation styles */
.form-control.is-invalid:focus {
  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);
}

.invalid-feedback {
  display: none;
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.form-control.is-invalid + .invalid-feedback {
  display: block;
}

/* Toast notification styling */
.toast {
  opacity: 1 !important;
  box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.2);
}

.toast-container {
  z-index: 1100;
}

.toast-body {
  font-weight: 500;
}

/* Back to top button styling */
#backToTop {
  width: 40px;
  height: 40px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 999;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

#backToTop.show {
  opacity: 1;
}

#backToTop:hover {
  transform: translateY(-3px);
}