body {
  font-family: Arial, sans-serif;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0;
 }
  .container {
  background-color: #ebe7e7;
  padding: 2em;
  border-radius: 12px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
  width: 500px;
  text-align: center;
  }
  h1 {
    background-color: #6aacf8;
    color: #000286;
  }
  input {
    width: 100%;
    padding: 0.6em;
    margin: 0.5em 0;
    border-radius: 6px;
    border: 1px solid #b10808;
  }
  button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 0.7em;
    width: 100%;
    border-radius: 6px;
    font-size: 1em;
    cursor: pointer;
  }
  button:hover {
    background-color: #2980b9;
  }
  h2{
    color: #000000;
  }
  #resultado {
    margin-top: 1em;
    font-weight: bold;
  }