body {
    color: white;
    background-color: black;
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
  }
  
  header img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 5px solid black;
    display: block;
    margin: 0 auto;
  }
  
  ul {
    display: flex;
    justify-content: space-around;
    list-style-type: none;
    align-items: center;
    padding: 10px;
    flex-wrap: wrap;
    margin: 0;
  }
  
  a {
    color: white;
    text-decoration: none;
  }
  
  .center {
    text-align: center;
  }
  
  h1 {
    text-align: left;
    margin-left: 15px;
  }
  
  h2 {
    color: white;
    text-align: center;
  }
  
  p {
    color: white;
    text-align: center;
  }
  
  /* Botão */
  .botao {
    font-size: 1.2em;
    background: blue;
    border: 0;
    margin: 1em auto;
    color: #ffffff;
    padding: 0.4em 1em;
    box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.2);
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.5);
    display: block;
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    text-align: center;
  }
  
  .botao:hover {
    background: darkblue;
    box-shadow: inset 2px 2px 2px rgba(0, 0, 0, 0.2);
    text-shadow: none;
  }
  
  .botao,
  select {
    cursor: pointer;
  }
  
  /* 🔽 Responsivo para telas pequenas */
  @media (max-width: 600px) {
    ul {
      flex-direction: column;
      padding: 5px;
    }
  
    header img {
      width: 150px;
      height: 150px;
    }
  
    h1 {
      font-size: 20px;
      text-align: center;
      margin-left: 0;
    }
  
    .botao {
      font-size: 1em;
      padding: 0.4em 1.2em;
      margin-top: 20px;
    }
  
    p {
      font-size: 14px;
      padding: 0 10px;
    }
  }