.darkmode {
  display: inline-block;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  position: relative;
  text-align: center;
  line-height: 30px;
  transition: background 0.3s ease;
}
.darkmode:hover {
  background-color: rgb(87, 87, 87);
}

.navLink:hover {
  transform: scale(1.2);
}

#container {
  box-shadow: rgba(0, 232, 143, 0.712) 6px 6px 5px;
}
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}
body {
  background-image: url("../img/dark.png"); /* <<< CORRIGIDO */
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.checkList {
  font-size: 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.checkList li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
}

.checkList li .fa-check:before {
  color: rgb(0, 232, 143);
}

.checkList li {
  letter-spacing: 2px;
  font-weight: 350;
}

.buttonSubmit {
  background-image: linear-gradient(
    to right,
    #84fab0 0%,
    #8bd3f7 51%,
    #84fab0 100%
  );
  color: rgb(12, 12, 12);
  border: none;
  cursor: pointer;
  transition: 0.5s;
  background-size: 200% auto;
  border-radius: 10px;
}

.buttonSubmit:hover {
  background-position: right center;
}