#pageContent.blur {
  filter: blur(4px);
}

.overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.overlay.active {
  visibility: visible;
  opacity: 1;
}

.modal-content {
  background: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 500px;
  width: 80%;
  box-shadow: 0 0 15px rgba(0,0,0,0.3);
}

.icon-button {
  background: none;
  border: none;
  padding: 0;
  margin: 0 5px;
  cursor: pointer;
  color: var(--celeste-hs);
  font-size: 1em;
}

.icon-button:focus {
  outline: 2px solid #333; /* per l'accessibilità */
}