body {
  font-family: Arial, sans-serif;
  background: url('img/sfondo3.png') no-repeat center center / cover;
  padding-top: 9%;
}

.overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.5);
  z-index: 0;
}

main, header, footer {
  position: relative;
  z-index: 1;
}

.contact-content {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 4rem 1rem;
}

.contact-form {
  background-color: rgba(255, 255, 255, 0.8);
  padding: 2rem;
  border-radius: 12px;
  max-width: 600px;
  width: 100%;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

.contact-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.8rem;
  margin-bottom: 1.5rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
}

.contact-form button {
  background-color: #007bff;
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  font-size: 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.contact-form button:hover {
  background-color: #0056b3;
}

/* Responsive */
@media (max-width: 768px) {
  .contact-form {
    padding: 1.5rem;
  }
}