.title {
  font-size: 2rem;
  margin: 2rem;
  color: #3f3f3f;
  text-align: center;
}
#userSelectionContainer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
  width: 100%;
  position: relative;
  top: 10%;
}

.user-button {
  width: 20%; /* cada una ocupa 20% del ancho */
  min-width: 220px; /* evita que se colapsen en pantallas pequeñas */
  max-width: 300px;
  background: white;
  border-radius: 20px;
  padding: 1.5rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  text-align: center;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.user-button:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.15);
}

.user-button img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #4f46e5;
}

.user-button span {
  display: block;
  margin-top: 1rem;
  font-weight: bold;
  font-size: 1.4rem;
  color: #333;
}

@media (max-width: 768px) {
  .user-button {
    width: 45%;
  }
}

@media (max-width: 480px) {
  .user-button {
    width: 80%;
  }
}