.about-hero {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 40px 70px;

    align-items: center;
}

.about-title {
    margin: 0;
    padding: 6px 0 0 0;
    font-size: 58px;
    font-weight: 700;
    line-height: 1.04;
    letter-spacing: -1px;
    color: var(--section-heading);
    text-wrap: balance;
}

.about-lead {
    margin: 24px 0 0 0;
    font-size: 22px;
    font-weight: 300;
    line-height: 34px;
    color: var(--section-subtitle);
    text-wrap: pretty;
}

.about-hero-body p {
    margin: 0 0 18px 0;
    font-size: 17px;
    line-height: 30px;
    color: var(--muted-text);
}

.about-hero-body p:last-child {
    margin-bottom: 0;
}

.about-hero-rule {
    height: 1px;
    margin: 14px 0 0 0;
    border: 0;
    background: var(--surface-border);
}

.year-rail {
    position: relative;
    list-style: none;
    margin: 10px 0 0 0;
    padding: 0;
}

.year-rail::before {
    content: "";
    position: absolute;
    left: 135px;
    top: 14px;
    bottom: 24px;
    width: 2px;
    background: var(--surface-border);
}

.year-rail li {
    display: grid;
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 0 56px;
    padding-bottom: 46px;
}

.year-rail li:last-child {
    padding-bottom: 0;
}

.rail-year {
    position: relative;
    margin: 0;
    text-align: right;
    font-size: 34px;
    font-weight: 700;
    line-height: 1;
    color: var(--primary);
}

.rail-year::after {
    content: "";
    position: absolute;
    right: -24px;
    top: 11px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 7px var(--secondary);
}

.rail-body {
    max-width: 720px;
}

.rail-title {
    margin: 0;
    padding: 0;
    font-size: 21px;
    font-weight: 700;
    line-height: 30px;
    color: var(--section-heading);
}

.rail-body p {
    margin: 10px 0 0 0;
    color: var(--muted-text);
}

.person-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    max-width: 700px;
    margin: 0 auto;
}

@media (min-width: 768px) {

    .person-grid.image-carousel-track {
        overflow: visible;
        scroll-snap-type: none;
        padding: 0;

        gap: 20px;
    }

    .person-grid > .image-carousel-slide {
        flex: 0 0 calc((100% - 40px) / 3);
        scroll-snap-align: none;
        display: flex;
    }

    .person-grid > .image-carousel-slide > .person-card {
        flex: 1 1 auto;
    }

    .person-carousel .image-carousel-arrow,
    .person-carousel .image-carousel-dots {
        display: none;
    }
}

.person-card {

    position: relative;
    background: var(--surface);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: box-shadow 0.3s ease;
}

.person-card:hover {
    box-shadow: 0 14px 28px -10px rgba(0, 0, 0, 0.7);
}

.person-photo {
    display: block;
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
}

.person-body {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;

    padding: 46px 16px 14px 16px;
    background: linear-gradient(to top,
            rgba(0, 0, 0, 0.92) 0%,
            rgba(0, 0, 0, 0.78) 50%,
            rgba(0, 0, 0, 0) 100%);
}

.person-name {
    margin: 0;
    padding: 0;
    font-size: 18px;
    font-weight: bold;
    line-height: normal;
    color: var(--section-heading);
}

.person-role {
    margin: 6px 0 0 0;
    font-size: 14px;
    font-weight: 300;
    line-height: 20px;
    color: var(--muted-text);
}

.person-contact {
    margin: 6px 0 0 0;
    font-size: 14px;
    line-height: 20px;
}

@media (hover: hover) {

    .person-contact {
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.3s ease, opacity 0.3s ease;
    }

    .person-card:hover .person-contact {
        max-height: 26px;
        opacity: 1;
    }
}

.split-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px 40px;
    align-items: start;
}

.split-2 p:first-child {
    margin-top: 0;
}

#locations .split-2 {
    grid-template-columns: 1.05fr 1fr;
    gap: 40px 70px;
    align-items: center;
}

.about-map {
    margin: 0;
    container-type: inline-size;
}

.about-map #map {
    display: block;
    width: 100%;
    max-width: 480px;
    border: 1px solid var(--surface-border);
    border-radius: 10px;
}

.about-map #map {
    display: none;
}

.about-map #map.map-live {
    display: block;
    aspect-ratio: 5 / 7;
    background: #ddd;
}

.about-map:not(:has(#map.map-live)) {
    display: none;
}

.about-map figcaption {
    max-width: 480px;
    padding-top: 10px;
    font-size: 13px;
    color: var(--footer-text);
}

html:not(.theme-light) .about-map .leaflet-tile-pane {
    filter: brightness(0.75) contrast(1.1) saturate(0.75);
}

.city-dot {
    fill: var(--primary);
    fill-opacity: 1;
    stroke: #fff;
    stroke-width: 2;
    cursor: pointer;
    transition: fill 0.15s ease;
}

.city-dot.is-hovered,
.city-dot.is-active {
    stroke-width: 3;
}

.city-label.leaflet-tooltip {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    font-family: 'Open Sans', sans-serif, Arial, Helvetica;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;

    color: #f5f5f5;
    text-shadow:
        0 0 3px #111, 0 0 3px #111, 0 0 3px #111, 0 0 4px #111;
}

html.theme-light .city-label.leaflet-tooltip {
    color: #222;
    text-shadow:
        0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff;
}

.city-label.leaflet-tooltip:before {
    display: none;
}

@container (max-width: 440px) {
    .city-label.leaflet-tooltip {
        font-size: 11px;
    }
}

/* Attribution is required by the OSM tile licence. It keeps Leaflet's own
   light styling so it stays legible against the map rather than the page. */
.about-map .leaflet-control-attribution {
    font-size: 10px;
}

.location-list {
    position: relative;
    list-style: none;
    margin: 20px 0 0 0;
}

.location-list::before {
    content: "";
    position: absolute;
    left: 5px;

    top: 10px;
    bottom: 10px;
    width: 2px;
    background: var(--surface-border);
}

.location-list li {
    position: relative;

    padding: 4px 0 4px 30px;
    font-size: 18px;
    line-height: 26px;
    color: var(--muted-text);
    transition: color 0.2s ease;
}

.location-list li:before {
    content: "";
    position: absolute;
    left: 0;

    top: 11px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 6px var(--secondary);
    transition: transform 0.15s ease;
}

.location-list li.is-linked {
    width: fit-content;
    cursor: pointer;
}

.location-list li.is-hovered,
.location-list li.is-active {
    color: var(--accent-text);
}

.location-list li.is-hovered:before,
.location-list li.is-active:before {
    transform: scale(1.35);
}

.location-list li.is-linked:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

.track-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px 90px;
    align-items: stretch;
}

.track-grid:after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: calc(50% - 0.5px);
    width: 1px;
    background: var(--surface-border);
}

.track {
    display: flex;
    flex-direction: column;
}

.track h3 {
    padding: 0 0 8px 0;
    font-size: 22px;
    font-weight: 700;
    line-height: 30px;
    color: var(--section-heading);
}

.track p {
    margin: 18px 0 0 0;
    color: var(--muted-text);
}

.track .thesis-list {
    margin-top: 22px;
}

.track .track-spacer {
    flex: 1 1 auto;
}

.track .button {
    margin: 28px 0 0 0;
    align-self: flex-start;
}

.thesis-list {
    list-style: none;
    margin: 0;
}

.thesis-list li {
    padding: 14px 0;
    border-bottom: 1px solid rgba(153, 153, 153, 0.2);
}

.thesis-list li:last-child {
    border-bottom: 0;
}

.thesis-title {
    display: block;
    font-weight: bold;
    color: var(--section-heading);
}

.thesis-meta {
    display: block;
    padding-top: 4px;
    font-size: 14px;
    color: var(--footer-text);
}

#certificates .split-2 {
    align-items: center;
}

#certificates p a {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

#certificates p a:hover {
    opacity: 0.75;
}

.cert-grid {
    display: flex;
    gap: 40px;
    justify-content: center;
}

.cert-mark {
    margin: 0;
    text-align: center;
}

.cert-mark img {
    display: block;
    width: 132px;
    height: auto;
    margin: 0 auto;
}

.cert-mark figcaption {
    padding-top: 14px;
    font-size: 15px;
    font-weight: bold;
    letter-spacing: 1px;
    color: var(--section-heading);
}

.cert-mark figcaption span {
    display: block;
    padding-top: 4px;
    font-size: 14px;
    font-weight: 300;
    letter-spacing: 0;
    color: var(--muted-text);
}

@media (max-width: 1023px) {

    .about-title {
        font-size: 46px;
    }

    .track-grid {
        gap: 40px 48px;
    }

    #locations .split-2 {
        grid-template-columns: minmax(0, 1fr) minmax(320px, 480px);
        gap: 40px;
    }

}

@media (max-width: 767px) {

    .about-hero {
        grid-template-columns: 1fr;
        gap: 26px;
    }

    .about-title {
        font-size: 36px;
    }

    .track-grid {
        grid-template-columns: 1fr;
    }

    .track-grid:after {
        display: none;
    }

    .about-lead {
        font-size: 19px;
        line-height: 30px;
    }

    .year-rail {
        padding-left: 28px;
    }

    .year-rail::before {
        left: 4px;
        top: 8px;
    }

    .year-rail li {
        grid-template-columns: 1fr;
        gap: 0;
        padding-bottom: 30px;
    }

    .rail-year {
        text-align: left;
        font-size: 24px;
        padding-bottom: 6px;
    }

    .rail-year::after {
        right: auto;
        left: -28px;
        top: 7px;
        width: 10px;
        height: 10px;
        box-shadow: 0 0 0 5px var(--secondary);
    }

    .person-grid.image-carousel-track {
        gap: 14px;

        padding: 4px calc((100% - 220px) / 2) 16px;
        max-width: none;

        flex-wrap: nowrap;
        justify-content: flex-start;
    }

    .person-grid > .image-carousel-slide {
        flex: 0 0 220px;
        display: flex;
    }

    .person-card {
        flex: 1 1 auto;
        display: flex;
        flex-direction: column;
        max-width: none;
    }

    .person-photo {
        flex: 0 0 auto;
    }

    .person-body {
        position: static;
        padding: 14px 16px 16px;
        background: none;
        flex: 1 1 auto;
    }

    .person-name {
        font-size: 17px;
        line-height: 1.35;
    }

    .person-contact {
        max-height: none;
        opacity: 1;
        margin: 12px 0 0 0;
    }

    .split-2,
    #locations .split-2 {
        grid-template-columns: 1fr;
    }

    .about-map figcaption {
        max-width: 100%;
    }

    .about-map #map.map-live {
        aspect-ratio: 4 / 5;
    }

    .split-2:has(#map.map-live) .location-list,
    .split-2:has(#map.map-live) .locations-lead {
        display: none;
    }

    .split-2:has(#map.map-live) .map-hint {
        display: none;
    }

    .cert-grid {
        gap: 24px;
        padding-top: 6px;
    }

    .cert-mark img {
        width: 106px;
    }

}