#nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5em;
}
#nav .tabs {
  display: flex;
  justify-content: space-between;
}
#nav .tabs .active-tab a {
  color: #ffffff;
  font-weight: bold;
}
.tabs .tab a {
  text-decoration: none;
  margin-right: 1em;
  color: #4e4e4e;
  font-size: var(--heading-01);
  font-weight: bold;
}

#nav .buttons {
  display: flex;
  align-items: center;
}
#nav .buttons form {
  display: flex;
  align-items: center;
  margin-right: 2em;
}
#nav .buttons form input {
  padding-bottom: 5px;
  background-color: transparent;
  border: none;
  border-bottom: 1px solid #ffffff;
}