.juego-container {
  max-width: 800px;
  margin: 40px auto;
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.pregunta {
  font-size: 1.8em;
  margin-bottom: 20px;
  color: #1a237e;
}

.opciones {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.opcion {
  padding: 16px;
  background-color: #e3f2fd;
  border: none;
  border-radius: 8px;
  font-size: 1.3em;
  cursor: pointer;
  transition: background-color 0.2s;
}

.opcion:hover {
  background-color: #bbdefb;
}

.feedback {
  font-weight: bold;
  font-size: 1.5em;
  margin-top: 20px;
  height: 40px;
}

.puntaje-final {
  margin-top: 30px;
  font-size: 1.2em;
  color: green;
}

button.reiniciar {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #2196f3;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
#menu-dificultad button {
  margin: 5px;
  padding: 10px 20px;
  border: none;
  background-color: #43a047;
  color: white;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s;
}

#menu-dificultad button:hover {
  background-color: #2e7d32;
}

.niveles {
  margin: 20px 0;
}
.btn-nivel {
  margin: 5px;
  padding: 10px 20px;
  border: none;
  background-color: #90caf9;
  color: #1a237e;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
}
.btn-nivel.seleccionado {
  background-color: #1976d2;
  color: white;
}

.cronometro {
  font-size: 1.2em;
  margin-bottom: 10px;
}

h2 {
  cursor: pointer;
}

.reiniciar {
  background-color: #4caf50;
  color: white;
  font-size: 1.6em; /* más grande */
  padding: 18px 32px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
}
.reiniciar:hover {
  background-color: #45a049;
}
.btn-nivel {
  margin: 10px;
  padding: 16px 30px;
  font-size: 1.3em; /* más grande */
  border-radius: 8px;
  border: none;
  background-color: #90caf9;
  cursor: pointer;
}
.btn-nivel.seleccionado {
  background-color: #1976d2;
  color: white;
}
.opcion {
  padding: 20px;
  font-size: 1.4em;
  border: none;
  background-color: #e3f2fd;
  border-radius: 10px;
  cursor: pointer;
  display: block;
  width: 100%;
  max-width: 300px;
  margin: 10px auto;
  text-align: center;
}
.opcion:hover {
  background-color: #bbdefb;
}

#btn-iniciar {
  background-color: #4caf50;
  color: white;
  font-size: 3em; /* más grande */
  padding: 18px 32px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
}
#btn-iniciar:hover {
  background-color: #051106;
}
.opcion:disabled {
  background-color: #ddd;
  cursor: not-allowed;
  opacity: 0.6;
}

.opcion:disabled {
  cursor: default; /* o usa 'pointer', 'wait', etc. */
  opacity: 0.7;
}

/* Animación al responder */
.opcion.correcta {
  background-color: #4caf50;
  color: white;
  animation: pop 0.3s ease-in-out;
}

.opcion.incorrecta {
  background-color: #f44336;
  color: white;
  animation: shake 0.3s ease-in-out;
}

@keyframes pop {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

.top-ranking {
  background: #f3f3f3;
  border: 2px solid #cfd8dc;
  border-radius: 10px;
  padding: 15px;
  max-width: 300px;
  font-family: "Poppins", sans-serif;
  margin-top: 20px;
}
.top-ranking h3 {
  color: #0d47a1;
  margin-bottom: 10px;
}
.ranking-lista {
  list-style: none;
  padding-left: 0;
}
.ranking-lista li {
  padding: 6px 0;
  border-bottom: 1px solid #ccc;
  font-size: 0.95rem;
}