body {
    margin: 0;
    font-family: Arial, sans-serif;
    
  }

  /* Cabeçalho */
  #cabecalho {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgb(13, 16, 22);
    color: white;
    padding: 10px 20px;
    position: relative;
  }

  /* Logo e título */
  #cabecalho h1 {
    margin: 0 10px 0 0;
    font-size: 1.2rem;
  }
  #cabecalho img {
    height: 40px;
  }

  /* Checkbox escondido */
  #menu-toggle {
    display: none;
  }

  /* Hamburger/X */
  .hamburger {
    width: 30px;
    height: 25px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
  }

  .hamburger span {
    display: block;
    height: 3px;
     background-color: rgb(0, 122, 255);
    border-radius: 2px;
    transition: 0.3s;
  }

  /* Transformar hamburger em X quando aberto */
  #menu-toggle:checked + .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  #menu-toggle:checked + .hamburger span:nth-child(2) {
    opacity: 0;
  }
  #menu-toggle:checked + .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  /* Menu lateral */
  nav {
    position: fixed;
    top: 0;
    left: -220px; /* escondido inicialmente */
    width: 220px;
    height: 100%;
    background-color: rgb(13, 16, 22);
    padding-top: 60px;
    transition: 0.3s;
    display: flex;
    flex-direction: column;
    z-index: 10;
    
  }

  nav h1 {
    text-align: center;
    margin-bottom: 20px;
  }

  nav a {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
  }

  nav a:hover {
    background: #444;
  }

  /* Mostrar menu ao marcar o checkbox */
  #menu-toggle:checked ~ nav {
    left: 0;
  }