@media screen and (max-width: 768px) {
  header .menu-toggle {
    display: block;
  }
  header .menu-toggle:hover {
    color: #fff;
  }
  header nav {
    display: none;
    position: absolute;
    width: 100%;
    height: 15vh;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5) 100%);
    top: 57px;
    right: 0px;
    transition: 0.5s;
  }
  header nav.active {
    display: block;
  }
  header nav a {
    display: flex;
    flex-direction: column;
    padding: 0.2rem;
    text-align: center;
  }
  .filme-principal {
    height: 30rem;
  }
}

@media screen and (max-width: 525px) {
  .filme-principal {
    height: 30rem;
  }
  .filme-principal .descricao {
    width: 100%;
  }
  .botao {
    margin-top: 10px;
    width: 14rem;
  }
}