.about-header {
    width: 100vw;
    display: -ms-grid;
    display: grid;
    -ms-grid-column-align: center;
        justify-self: center;
    -webkit-box-align: end;
        -ms-flex-align: end;
            align-items: end;
}

.about-header > h1 {
    padding-top: 5rem;
    text-align: center;
}

/* Section 1 */
.section-1 {
    width: 100vw;
    min-height: 100vh;
    display: -ms-grid;
    display: grid;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
}

.section-1 > div {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-grid-column-align: center;
        justify-self: center;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-direction: row;
            flex-direction: row;
}

.section-1 .sidebar {
    width: var(--x-large);
    display: -ms-grid;
    display: grid;
    -ms-grid-rows: 2rem var(--medium) auto;
    grid-template-rows: 2rem auto;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    gap: var(--medium);
    position: sticky;
    top: 25vh;
}

.section-1 .sidebar > h4 {
    line-height: 1;
    text-wrap: nowrap;
    color: var(--orange);
}

.section-1 .sidebar > div {
    -ms-flex-item-align: end;
        -ms-grid-row-align: end;
        align-self: end;
}

.section-1 > div > div:nth-child(2) {
    width: 100%;
    display: -ms-grid;
    display: grid;
    -webkit-box-pack: start;
        -ms-flex-pack: start;
            justify-content: start;
    gap: var(--x-large);
}

.section-1 > div > div:nth-child(2) > div:nth-child(1) {
    height: -webkit-fit-content;
    height: -moz-fit-content;
    height: fit-content;
    display: -ms-grid;
    display: grid;
    gap: var(--medium);
    padding-bottom: var(--large);
}

.section-1 > div > div:nth-child(2) > div:nth-child(1) > div {
    width: auto;
    height: -webkit-fit-content;
    height: -moz-fit-content;
    height: fit-content;
    display: -ms-grid;
    display: grid;
    gap: var(--regular);
}

.section-1 > div > div:nth-child(2) > div:nth-child(1) > div > h2 {
    margin-top: calc(-1 * var(--small));
}

.section-1 > div > div:nth-child(2) > div:nth-child(1) > div > div {
    display: -ms-grid;
    display: grid;
    gap: var(--small);
}

.section-1 > div > div:nth-child(2) > div:nth-child(1) > div > div > p {
    text-align: left;
}

.section-1 > div > div:nth-child(2) > div:nth-child(2) {
    position: relative;
}

.section-1 > div > div:nth-child(2) > div:nth-child(2) > img {
    width: 100%;
    height: 115%;
    -o-object-fit: cover;
       object-fit: cover;
    -webkit-transition: translate ease;
    -o-transition: translate ease;
    transition: translate ease;
}

.timeline-container-1,
.timeline-container-2 {
    position: absolute;
    -ms-grid-column-align: center;
        justify-self: center;
    top: 0;
    overflow: hidden;
}

.timeline {
    width: 2px;
    /* background-color: var(--white); */
    background: -webkit-gradient(linear, left bottom, left top, color-stop(0.1%, rgba(255, 255, 255, 0.1)), to(rgba(255, 255, 255, 1)));
    background: -o-linear-gradient(bottom, rgba(255, 255, 255, 0.1) 0.1%, rgba(255, 255, 255, 1) 100%);
    background: linear-gradient(0deg, rgba(255, 255, 255, 0.1) 0.1%, rgba(255, 255, 255, 1) 100%);
    -ms-grid-column-align: center;
        justify-self: center;
    border-radius: 1px;
    position: sticky;
    z-index: -1;
}

.timeline-mark-1-container,
.timeline-mark-2-container {
    display: -ms-grid;
    display: grid;
    height: 100%;
    position: relative;
}

#timeline-mark-1 {
    -ms-flex-item-align: end;
        -ms-grid-row-align: end;
        align-self: end;
    -ms-grid-column-align: center;
        justify-self: center;
}

.timeline-mark-container {
    height: 100%;
    display: -ms-grid;
    display: grid;
    position: relative;
}

.timeline-mark-1,
.timeline-mark-2 {
    background-color: var(--white);
    border-radius: 50%;
}

.timeline-mark {
    background-color: var(--white);
    border-radius: 50%;
    -ms-flex-item-align: center;
        -ms-grid-row-align: center;
        align-self: center;
    -webkit-transition: 693ms var(--ease-out);
    -o-transition: 693ms var(--ease-out);
    transition: 693ms var(--ease-out);
}

.timeline-mark-container {
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
}
/* Section 1 */

@media (max-width: 320px) {
    .about-header {
        width: calc(100vw - 1rem - 1rem);
        min-height: 25vh;
    }

    .about-header > h1 {
        padding-top: 5rem;
        padding-bottom: var(--large);
    }


    .section-1 > div {
        width: calc(100vw - 1rem - 1rem);
        gap: var(--small);
    }

    .section-1 .sidebar {
        height: 75vh;
    }

    .timeline-mark {
        width: var(--regular);
        height: var(--regular);
    }

    #timeline-mark-1 {
        margin-bottom: calc(50vh - (var(--regular) / 2));
    }

    #timeline-1 {
        margin-top: calc(var(--regular) / 2);
    }

    .section-1 > div > div:nth-child(2) {
        width: 100%;
        min-height: 75vh;
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -ms-grid-columns: none;
        grid-template-columns: none;
        -webkit-box-orient: vertical;
        -webkit-box-direction: reverse;
            -ms-flex-direction: column-reverse;
                flex-direction: column-reverse;
        -webkit-box-pack: start;
            -ms-flex-pack: start;
                justify-content: start;
        gap: var(--medium);
    }

    .section-1 > div > div:nth-child(2) > div:nth-child(2) {
        width: 100%;
        min-height: var(--xxx-large);
        -ms-flex-item-align: end;
            -ms-grid-row-align: end;
            align-self: end;
        overflow: hidden;
    }
}

@media (min-width: 320px) {
    .about-header {
        width: calc(100vw - 1rem - 1rem);
        min-height: 25vh;
    }

    .about-header > h1 {
        padding-top: 5rem;
        padding-bottom: var(--large);
    }


    .section-1 > div {
        width: calc(100vw - 1rem - 1rem);
        gap: var(--small);
    }

    .section-1 .sidebar {
        height: 75vh;
    }

    .timeline-mark {
        width: var(--regular);
        height: var(--regular);
    }

    #timeline-mark-1 {
        margin-bottom: calc(50vh - (var(--regular) / 2));
    }

    #timeline-1 {
        margin-top: calc(var(--regular) / 2);
    }

    .section-1 > div > div:nth-child(2) {
        width: 100%;
        min-height: 75vh;
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -ms-grid-columns: none;
        grid-template-columns: none;
        -webkit-box-orient: vertical;
        -webkit-box-direction: reverse;
            -ms-flex-direction: column-reverse;
                flex-direction: column-reverse;
        -webkit-box-pack: start;
            -ms-flex-pack: start;
                justify-content: start;
        gap: var(--medium);
    }

    .section-1 > div > div:nth-child(2) > div:nth-child(2) {
        width: 100%;
        min-height: var(--xxx-large);
        -ms-flex-item-align: end;
            -ms-grid-row-align: end;
            align-self: end;
        overflow: hidden;
    }
}

@media (min-width: 600px) {
    .about-header {
        width: calc(100vw - 2rem - 2rem);
    }

    .section-1 > div {
        width: calc(100vw - 2rem - 2rem);
        gap: var(--medium);
    }

    .section-1 > div > div:nth-child(2) {
        gap: var(--large);
    }
    
    .timeline-mark {
        width: var(--medium);
        height: var(--medium);
    }


    #timeline-mark-1 {
        margin-bottom: calc(50vh - (var(--medium) / 2));
    }


    #timeline-1 {
        margin-top: calc(var(--medium) / 2);
    }
}

@media (min-width: 1280px) {
    .about-header {
        width: calc(100vw - 8.625rem - 8.625rem);
        height: -webkit-fit-content;
        height: -moz-fit-content;
        height: fit-content;
        min-height: 40vh;
    }

    .about-header > h1 {
        padding-top: calc(var(--x-large) + 5rem);
        padding-bottom: var(--x-large);
    }
    
    .section-1 .sidebar {
        height: 60vh;
    }

    .section-1 > div {
        width: calc(100vw - 8.625rem - 8.625rem);
        gap: var(--x-large);
    }

    .section-1 > div > div:nth-child(2) {
        width: 100%;
        height: -webkit-fit-content;
        height: -moz-fit-content;
        height: fit-content;
        min-height: 60vh;
        display: -ms-grid;
        display: grid;
        -ms-grid-columns: auto var(--x-large) 35vw;
        grid-template-columns: auto 35vw;
        -webkit-box-pack: justify;
            -ms-flex-pack: justify;
                justify-content: space-between;
        gap: var(--x-large);
    }

    .section-1 > div > div:nth-child(2) > div:nth-child(2) {
        width: 35vw;
        min-height: var(--xxx-large);
        height: 100%;
        -ms-flex-item-align: end;
            -ms-grid-row-align: end;
            align-self: end;
        overflow: hidden;
    }
}

.section-2 {
    width: 100vw;
    min-height: 100vh;
    display: -ms-grid;
    display: grid;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
}

.section-2 .sidebar {
    width: var(--x-large);
    height: 100vh;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    gap: var(--x-large);
    position: sticky;
    top: 0;
    -ms-flex-item-align: start;
        -ms-grid-row-align: start;
        align-self: start;
}

.section-2 > div {
    min-height: 100vh;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-direction: row;
            flex-direction: row;
    position: relative;
}

.section-2 > div > div:nth-child(2) {
    width: 100%;
    display: -ms-grid;
    display: grid;
    -webkit-box-pack: start;
        -ms-flex-pack: start;
            justify-content: start;
    gap: var(--x-large);
    padding-top: calc(var(--large) + 5rem);
    padding-bottom: var(--large);
}

.section-2-content {
    display: -ms-grid;
    display: grid;
    gap: var(--medium);
}

.section-2-content > div {
    display: -ms-grid;
    display: grid;
    gap: var(--regular);
}

.section-2-content > div > div {
    display: -ms-grid;
    display: grid;
    gap: var(--small);
}


@media (max-width: 320px) {
    .section-2 > div {
        width: calc(100vw - 1rem - 1rem);
        gap: var(--small);
    }
}

@media (min-width: 320px) {
    .section-2 > div {
        width: calc(100vw - 1rem - 1rem);
        gap: var(--small);
    }
}

@media (min-width: 600px) {
    .section-2 > div {
        width: calc(100vw - 2rem - 2rem);
        gap: var(--medium);
    }
}

@media (min-width: 1280px) {
    .section-2 > div {
        width: calc(100vw - 8.625rem - 8.625rem);
        gap: var(--x-large);
    }
}

.section-3 {
    width: 100vw;
    min-height: 100vh;
    display: -ms-grid;
    display: grid;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
}

.section-3 .sidebar {
    width: var(--x-large);
    height: 100vh;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
        -ms-flex-direction: column;
            flex-direction: column;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    gap: var(--x-large);
    position: sticky;
    top: 0;
    -ms-flex-item-align: start;
        -ms-grid-row-align: start;
        align-self: start;
}

.section-3 > div {
    min-height: 100vh;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
        -ms-flex-direction: row;
            flex-direction: row;
    position: relative;
}

.section-3-content {
    width: 100%;
    display: -ms-grid;
    display: grid;
    -webkit-box-pack: start;
        -ms-flex-pack: start;
            justify-content: start;
    gap: var(--x-large);
    padding-top: calc(var(--large) + 5rem);
    padding-bottom: var(--large);
}

.section-3-content {
    display: -ms-grid;
    display: grid;
    gap: var(--medium);
}

.section-3-content > div {
    display: -ms-grid;
    display: grid;
    gap: var(--regular);
}

.section-3-content > div > div {
    display: -ms-grid;
    display: grid;
    gap: var(--small);
}

.section-3-content > div > div > div {
    display: -ms-grid;
    display: grid;
    gap: var(--x-small);
}

.section-3-content ul {
    padding: 0;
    margin: 0;
    list-style-position: inside;
}


@media (max-width: 320px) {
    .section-3 > div {
        width: calc(100vw - 1rem - 1rem);
        gap: var(--small);
    }
}

@media (min-width: 320px) {
    .section-3 > div {
        width: calc(100vw - 1rem - 1rem);
        gap: var(--small);
    }
}

@media (min-width: 600px) {
    .section-3 > div {
        width: calc(100vw - 2rem - 2rem);
        gap: var(--medium);
    }
}

@media (min-width: 1280px) {
    .section-3 > div {
        width: calc(100vw - 8.625rem - 8.625rem);
        gap: var(--x-large);
    }
}