body {
  font-family: Arial, sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
  background-color: #f4f4f9;
}



section {
  margin: 20px auto;
  padding: 1rem;
  background: white;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  width: 90%;
  max-width: 800px;
}




/* Canvas responsivo */
canvas {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid #ddd;
  border-radius: 4px;
  margin-top: 1rem;
  display: block;
}

#resultado-absoluto {
  font-size: 18px;
  font-weight: bold;
  color: #333;
}

button {
  padding: 10px 20px;
  background-color: #4caf50;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background-color: #45a049;
}


/* Diseño responsivo */
@media (max-width: 768px) {
  main {
      padding: 0.5rem;
  }

  section {
      padding: 0.75rem;
  }

  input {
      max-width: 100%;
  }

  canvas {
      max-width: 100%;
  }
}

@media (max-width: 480px) {
  header {
      font-size: 1.2rem;
  }

  section {
      padding: 0.5rem;
  }

  input, button {
      font-size: 0.9rem;
  }

  button {
      padding: 0.5rem;
  }
}