section > p {
  margin-bottom: 0rem;
}

section {
  margin-bottom: 2.5rem;
}

.hidden {
  display: none;
}

.invisible {
  visibility: hidden;
}

.navigation {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  margin: 4rem 0;

  > a {
    place-self: start start;
  }

  > span {
    place-self: start center;
  }

  > :last-child {
    place-self: start end;
  }
}

main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;

  h3 {
    text-align: center;
    border: 2px solid #007559;
    border-radius: 5px;
    padding: 2.5rem;
    margin: 0;
    cursor: pointer;

    &:hover {
      background-color: #f7f7f7;
    }

    span:last-child {
      display: none;
    }

    &.flip {
      span:first-child {
        display: none;
      }

      span:last-child {
        display: inline;
      }
    }
  }
}