.about-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 270px;
    gap: 36px;
    max-width: 1280px;
    margin: 0 auto 56px;
    padding: 0 24px;
}

.about-content {
    min-width: 0;
}

.about-section {
    padding: 20px 0 32px;
}

.about-section-title {
    margin: 0 0 24px;
    color: var(--stp-green);
    font-family: "Fraunces", Georgia, serif;
    font-size: 32px;
    line-height: 1.2;
}

.about-sidebar {
    align-self: start;
    position: sticky;
    top: 180px;
    margin-top: 20px;
    padding: 18px 12px;
    border-left: 3px solid var(--stp-gold);
    border-radius: 0 12px 12px 0;
    background: var(--stp-sand);
}

.about-sidebar-heading {
    margin: 0 10px 10px;
    color: var(--stp-green);
    font-family: "JetBrains Mono", Menlo, monospace;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.about-sidebar nav {
    display: grid;
    gap: 4px;
}

.about-sidebar-link {
    display: block;
    padding: 10px;
    border-radius: 7px;
    color: var(--stp-green);
    font-size: 14px;
    line-height: 1.4;
}

.about-sidebar-link:hover,
.about-sidebar-link:focus-visible {
    background: rgba(255, 255, 255, .65);
    color: var(--stp-rust);
}

.about-sidebar-link.is-active {
    background: var(--stp-green);
    color: #fff;
    font-weight: 600;
}

.about-layout .eco {
    margin: 0 -24px;
    padding: 32px 0;
}

.about-ecology {
    padding-bottom: 0;
}

.about-ecology .eco {
    margin-top: 0;
    padding-top: 12px;
    border-top: 0;
}

.about-layout .eco-grid {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas:
        "copy"
        "image";
    gap: 24px;
}

.about-layout .eco-copy {
    grid-area: copy;
}

.about-layout .eco-circle {
    grid-area: image;
    width: min(100%, 340px);
    justify-self: center;
}

.about-principles {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
    margin: 8px 0 48px;
}

.about-principle-card {
    position: relative;
    min-width: 0;
    padding: 24px;
    overflow: hidden;
    border: 1px solid transparent;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(15, 57, 43, .08);
    transition: transform .2s ease, box-shadow .2s ease;
}

.about-principle-card:hover,
.about-principle-card:focus-within {
    transform: translateY(-4px);
    box-shadow: 0 14px 28px rgba(15, 57, 43, .14);
}

.about-principle-vision {
    border-color: rgba(15, 57, 43, .12);
    background: #edf4ef;
}

.about-principle-mission {
    border-color: rgba(200, 138, 45, .2);
    background: #fbf1df;
}

.about-principle-objective {
    border-color: rgba(184, 80, 50, .16);
    background: #f8eae5;
}

.about-principle-number {
    float: right;
    color: rgba(15, 57, 43, .24);
    font-family: "JetBrains Mono", Menlo, monospace;
    font-size: 28px;
    line-height: 1;
}

.about-principle-card h2 {
    margin: 0 0 16px;
    color: var(--stp-green);
    font-family: "Fraunces", Georgia, serif;
    font-size: 24px;
}

.about-principle-content {
    color: var(--stp-muted);
    line-height: 1.7;
}

.about-principle-content > :last-child {
    margin-bottom: 0;
}

.about-principle-objective ul {
    padding-left: 20px;
}

.about-principle-objective li + li {
    margin-top: 8px;
}

.about-timeline {
    border-left: 2px solid var(--stp-sand);
    margin-left: 8px;
}

.about-timeline-year {
    position: relative;
    padding: 0 0 20px 24px;
}

.about-timeline-year::before {
    position: absolute;
    top: 7px;
    left: -7px;
    width: 12px;
    height: 12px;
    border: 2px solid var(--stp-cream);
    border-radius: 50%;
    background: var(--stp-gold);
    content: "";
}

.about-year {
    margin: 0 0 12px;
    color: var(--stp-rust);
    font-family: "JetBrains Mono", Menlo, monospace;
    font-size: 18px;
}

.about-milestone {
    padding: 0 0 14px;
    color: var(--stp-muted);
}

.about-milestone h3,
.about-people-group h2 {
    color: var(--stp-green);
    font-family: "Fraunces", Georgia, serif;
}

.about-milestone h3 {
    margin: 0 0 8px;
    font-size: 19px;
}

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

.about-people-group {
    margin: 0 0 34px;
}

.about-people-group h2 {
    margin: 0 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(15, 57, 43, .14);
    font-size: 24px;
}

.about-people-grid {
    display: grid;
    gap: 14px;
}

.about-person {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
    padding: 16px;
    border: 1px solid rgba(15, 57, 43, .1);
    border-radius: 12px;
    background: var(--stp-cream);
}

.about-person img {
    width: 88px;
    height: 104px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--stp-sand);
}

.about-person h3 {
    margin: 0 0 4px;
    color: var(--stp-green);
    font-size: 17px;
    font-weight: 600;
}

.about-person-title,
.about-person-affiliation {
    margin: 0 0 4px;
    color: var(--stp-muted);
}

.about-person-title {
    font-weight: 500;
}

.about-person-bio {
    margin: 10px 0 0;
    color: var(--stp-muted);
    white-space: pre-line;
}

.about-offices {
    display: grid;
    gap: 16px;
}

.about-office {
    padding: 18px;
    border: 1px solid rgba(15, 57, 43, .1);
    border-radius: 12px;
    background: var(--stp-cream);
}

.about-office h2 {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 14px;
    color: var(--stp-green);
    font-size: 19px;
}

.about-office address {
    color: var(--stp-muted);
    line-height: 1.7;
}

.about-office p {
    margin: 4px 0;
    color: var(--stp-muted);
}

.about-office a,
.about-contact-link {
    color: var(--stp-rust);
}

.about-contact-link {
    display: inline-block;
    margin-top: 20px;
    font-weight: 600;
}

@media (max-width: 767px) {
    .about-layout {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 0 16px;
    }

    .about-sidebar {
        position: static;
        grid-row: 1;
        margin-top: 0;
        padding: 12px;
    }

    .about-sidebar nav {
        display: flex;
        flex-wrap: wrap;
    }

    .about-sidebar-link {
        flex: 1 1 150px;
    }

    .about-section-title {
        font-size: 28px;
    }

    .about-principle-card {
        padding: 20px;
    }

    .about-layout .eco {
        margin: 0 -16px;
    }
}

@media (min-width: 900px) {
    .about-principles {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        align-items: stretch;
    }

    .about-layout .eco-grid {
        grid-template-columns: minmax(0, 1.15fr) minmax(220px, .85fr);
        grid-template-areas: "copy image";
        gap: 28px;
    }

    .about-layout .eco-circle {
        justify-self: end;
    }
}