section#section-1 {
    display: flex;
    align-items: center;
    height: 100vh;
    background-color: var(--blue-deep);
    color: white;
}

section#section-1 > div {
    display: grid;
}

section#section-1 div#avatar-container {
    margin: 5rem auto 0;
}

section#section-1 div h3 {
    text-align: center;
}

section#section-1 div p {
    margin-top: 3rem;
}


section#section-2 {
    background-color: var(--green-light);
    color: var(--blue-deep);
    min-height: 30rem;
}

section#section-2 h3 {
    padding-top: 3rem;
}

section#section-2 img {
    margin: 0 auto;
    padding: 2rem;
    display: block;
}

section#section-3 div.link-examples {
    font-family: var(--font-text);
    margin: 0;
    padding: 1rem 0;
    background-color: var(--blue-deep);
    color: var(--grey-light);
}

section#section-3 div.link-examples > h3 {
    padding: 1rem;
}

section#section-3 div.link-examples > div {
    display: flex;
    align-items: flex-start;
    padding: 1rem;
}

section#section-3 div.link-examples p {
    font-size: 1rem;
    line-height: 1.8rem;
    padding-top: 0;
    padding-left: 2rem;
}

section#section-3 div.link-examples a {
    width: 100%;
    display: block;
    text-align: center;
    padding: 1rem 0 1rem;
}

section#section-4 div#images {
    padding: 1rem;
}

section#section-4 div#images img {
    width: 100%;
}

section#section-4 div#about{
    transition: all 2s ease;
}

section#section-4 div#about.hidden{
    height: 4rem;
    overflow: hidden;
    opacity: .2;
}

section#section-4 button#btn-more {
    position: relative;
    margin: -1rem auto;
    display: block;
    width: 10rem;
    height: 3rem;
    border-radius: 10px;
    font-size: 1rem;
    background-color: var(--blue-deep);
    color: var(--grey-light);
    margin-bottom: 2rem;
}

section#section-4 div#link-osindi {
    height: 10rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

section#section-4 div#link-osindi img {
    filter: invert(48%);
    width: 3rem;
}


/* Media Query for Tablets Ipads portrait mode */
@media (min-width: 768px) and (max-width: 1024px) {
    section#section-1 {
        display: flex;
        align-items: center;
        height: 35rem;
    }

    section#section-1 p{
        margin: 3rem;
        text-align: center;
        padding: 0 10rem
    }

    section#section-2 {
        min-height: auto;
    }

    section#section-3 {
        display: grid;
        grid-template-areas:
          "element1 element2"
          "element3 element4";
    }

    section#section-3 div.link-examples#link-examples-1 { grid-area: element1; }
    section#section-3 div.link-examples#link-examples-2 { grid-area: element2; }
    section#section-3 div.link-examples#link-examples-3 { grid-area: element3; }
    section#section-3 div.link-examples#link-examples-4 { grid-area: element4; }

    section#section-3 div.link-examples > div > div {
        display: flex;
        flex-direction: revert;
    }

    section#section-4 div#images {
        padding: 1rem;
        display: flex;
        justify-content: center;
    }

    section#section-4 div#images img{
        width: 45%;
    }
}

@media (min-width: 1025px) {
    div#container {
        display: grid;
        grid-template-areas:
          "section1 section2"
          "section3 section4";
    }

    div#container section#section-1 { grid-area: section1; }
    div#container section#section-2 { grid-area: section2; }
    div#container section#section-3 { grid-area: section3; }
    div#container section#section-4 { grid-area: section4; }

    section#section-1 {
        height: auto;
    }

    section#section-3 {
        display: grid;
        grid-template-areas:
          "element1 element2"
          "element3 element4";
    }

    section#section-3 div.link-examples {
        background-color: var(--green-medium);
    }

    section#section-3 div.link-examples#link-examples-1 { grid-area: element1; }
    section#section-3 div.link-examples#link-examples-2 { grid-area: element2; }
    section#section-3 div.link-examples#link-examples-3 { grid-area: element3; }
    section#section-3 div.link-examples#link-examples-4 { grid-area: element4; }

    section#section-4 div#images {
        padding: 1rem;
        display: flex;
        justify-content: center;
    }

    section#section-4 div#images img{
        width: 45%;
    }
}