body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #222;
  background: #f4f4f4;
}

header {
  background: #ffffff;
  padding: 25px;
  text-align: center;
}

.hero {
  padding: 70px 20px;
  text-align: center;
  background: #e6e8e5;
}

section {
  padding: 35px 20px;
}

model-viewer {
  width: 100%;
  height: 70vh;
  background: #e5e5e5;
}

button {
  padding: 12px 20px;
  border: none;
  background: #244f4a;
  color: white;
  cursor: pointer;
  margin: 5px;
}

button:hover {
  background: #183a36;
}

.contacto {
  text-align: center;
  background: #ffffff;
}