body {
  margin: 1em;
  padding: 0;
  font-family: "Google Sans", "Noto", "Roboto", "Helvetica Neue", sans-serif;
  background: #121212; /* Fondo dark */
  color: #e0e0e0;      /* Texto claro */
}

#card {
  margin: 3em auto;
  display: flex;
  flex-direction: column;
  max-width: 350px;
  max-height: 650px;
  border-radius: 12px;
  background: #1e1e1e; /* Fondo de tarjeta */
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
}

#card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
}

model-viewer {
  width: 100%;
  height: 400px;
  background: linear-gradient(145deg, #222, #111);
  --poster-color: transparent;
}

.attribution {
  display: flex;
  flex-direction: column;   /* Título arriba, texto debajo */
  gap: 0.5em;               /* separación */
  padding: 1em;
  background: #1e1e1e;
  border-radius: 0 0 12px 12px;
}

.attribution h1 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
}

.attribution .detalle {
  font-size: 0.8rem;   /* más pequeño */
  color: #b0b0b0;      /* gris claro */
  line-height: 1.4;
}

footer {
  display: flex;
  flex-direction: column;
  max-width: 600px;
  margin: 2em auto;
  text-align: center;
  font-style: italic;
  line-height: 1.6em;
  color: #a0a0a0;
}