.activities-masthead {
    min-height: min(74svh, 54rem);
    padding: clamp(9rem, 13vw, 12rem) 1.4rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: var(--cream);
    border-bottom: 1px solid;
}

.activities-masthead__meta,
.activities-masthead__foot,
.activities-masthead__note > span,
.activities-framework__head > span,
.activities-mode__top,
.activities-conversation__copy > span {
    font: 500 .55rem/1.5 var(--mono);
    letter-spacing: .06em;
    text-transform: uppercase;
}

.activities-masthead__meta,
.activities-masthead__foot {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    padding-bottom: .8rem;
    border-bottom: 1px solid;
}

.activities-masthead__body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(17rem, .34fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: end;
    margin: clamp(3rem, 6vw, 6rem) 0;
}

.activities-masthead h1 {
    margin: 0;
    font-size: clamp(4rem, 7.7vw, 8.2rem);
    line-height: .76;
    letter-spacing: -.095em;
}

.activities-masthead h1 em,
.activities-conversation h2 em {
    color: var(--orange);
    font-style: normal;
}

.activities-masthead__note {
    padding-left: 1.1rem;
    border-left: 1px solid;
}

.activities-masthead__note strong {
    display: block;
    margin: 1.6rem 0;
    font-size: clamp(2rem, 2.7vw, 3rem);
    line-height: .95;
    letter-spacing: -.065em;
}

.activities-masthead__note p {
    max-width: 19rem;
    margin: 0;
    font: 400 .7rem/1.65 var(--mono);
}

.activities-masthead__foot {
    padding: 1rem 0 0;
    border-top: 1px solid;
    border-bottom: 0;
}

.activities-masthead__foot a {
    display: flex;
    gap: 2rem;
    border-bottom: 1px solid transparent;
}

.activities-masthead__foot a:hover,
.activities-masthead__foot a:focus-visible {
    border-bottom-color: currentColor;
}

.activities-framework {
    padding: clamp(6rem, 9vw, 9rem) 1.4rem;
    color: var(--paper);
    background: var(--ink);
    border-bottom: 1px solid;
    scroll-margin-top: 5rem;
}

.activities-framework__head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(13rem, .38fr);
    gap: 2rem;
    align-items: end;
    margin-bottom: clamp(4rem, 7vw, 7rem);
}

.activities-framework__head h2,
.activities-conversation h2 {
    margin: 0;
    font-size: clamp(3.5rem, 5.5vw, 6rem);
    line-height: .86;
    letter-spacing: -.08em;
}

.activities-framework__head p {
    max-width: 24rem;
    margin: 0;
    font: 400 .7rem/1.7 var(--mono);
}

.activities-framework__grid {
    position: relative;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--paper);
    border-left: 1px solid var(--paper);
}

.activities-mode {
    min-width: 0;
    min-height: 39rem;
    padding: clamp(1.3rem, 2.2vw, 2.2rem);
    display: flex;
    flex-direction: column;
    color: var(--ink);
    background: var(--cream);
    border-right: 1px solid var(--paper);
    border-bottom: 1px solid var(--paper);
}

.activities-mode:nth-child(1) { background: var(--orange); }
.activities-mode:nth-child(3) { background: var(--yellow); }
.activities-mode:nth-child(4) { background: var(--paper); }

.activities-mode__top {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid;
}

.activities-mode h3 {
    max-width: 15ch;
    margin: 2.5rem 0 auto;
    font-size: clamp(2.3rem, 4.2vw, 4.5rem);
    line-height: .9;
    letter-spacing: -.07em;
}

.activities-mode__items {
    margin-top: 3.5rem;
    border-top: 1px solid;
}

.activities-mode__items article {
    display: grid;
    grid-template-columns: 2rem 1fr;
    gap: 1rem;
    padding: 1.2rem 0;
    border-bottom: 1px solid;
}

.activities-mode__items article:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.activities-mode__items article > span {
    padding-top: .25rem;
    font: 500 .53rem var(--mono);
}

.activities-mode h4 {
    margin: 0 0 .65rem;
    font-size: clamp(1.15rem, 1.7vw, 1.7rem);
    line-height: 1.12;
    letter-spacing: -.04em;
}

.activities-mode p {
    max-width: 38rem;
    margin: 0;
    font: 400 .68rem/1.65 var(--mono);
}

.activities-framework__centre {
    position: absolute;
    z-index: 2;
    left: 50%;
    top: 50%;
    width: 4.5rem;
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    color: var(--paper);
    background: var(--ink);
    border: 1px solid var(--paper);
    border-radius: 50%;
    font: 500 .7rem var(--mono);
    transform: translate(-50%, -50%);
}

.activities-conversation {
    padding: clamp(6rem, 9vw, 9rem) 1.4rem;
    display: grid;
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: clamp(3rem, 6vw, 6rem);
    align-items: center;
    border-bottom: 1px solid;
}

.activities-conversation h2 {
    margin: 2rem 0 3rem;
}

.activities-conversation__copy p {
    max-width: 38rem;
    margin: 0;
    padding-top: 1rem;
    border-top: 1px solid;
    font: 400 .74rem/1.75 var(--mono);
}

.activities-placeholder .image-placeholder__field {
    min-height: 30rem;
}

.activities-placeholder dl {
    grid-template-columns: 1fr 1fr;
}

.activities-next {
    background: var(--yellow);
}

.activities-next h2 {
    max-width: 18ch;
    font-size: clamp(3rem, 5vw, 5.5rem);
}

@media (max-width: 900px) {
    .activities-masthead {
        min-height: 0;
        padding-top: 10.5rem;
    }

    .activities-masthead__body,
    .activities-framework__head,
    .activities-conversation {
        grid-template-columns: 1fr;
    }

    .activities-masthead__note strong { margin: 1.2rem 0; }

    .activities-framework__head {
        gap: 1.5rem;
    }

    .activities-mode {
        min-height: 38rem;
    }
}

@media (max-width: 640px) {
    .activities-masthead__meta > span:last-child {
        display: none;
    }

    .activities-masthead__body {
        gap: 3rem;
        margin: 4rem 0 3rem;
    }

    .activities-masthead h1 {
        font-size: clamp(3.6rem, 16vw, 5.4rem);
    }

    .activities-masthead__note strong { font-size: clamp(2.6rem, 10vw, 4rem); }

    .activities-masthead__foot {
        display: block;
    }

    .activities-masthead__foot a {
        width: max-content;
        margin-top: 1rem;
    }

    .activities-framework__head h2,
    .activities-conversation h2 {
        font-size: clamp(3.2rem, 13.5vw, 4.7rem);
    }

    .activities-framework__grid {
        grid-template-columns: 1fr;
    }

    .activities-mode {
        min-height: 0;
    }

    .activities-mode h3 {
        margin-bottom: 3rem;
    }

    .activities-mode__items {
        margin-top: 0;
    }

    .activities-framework__centre {
        display: none;
    }

    .activities-placeholder .image-placeholder__field {
        min-height: 23rem;
    }
}

.explorer-image-frame {
    margin: 0;
    padding: .75rem;
    display: flex;
    flex-direction: column;
    background: var(--white);
    border: 1px solid;
    box-shadow: 8px 8px 0 var(--yellow);
}

.explorer-image-frame img {
    display: block;
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
}

.explorer-image-frame figcaption {
    padding-top: .75rem;
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    font: 500 .53rem var(--mono);
    text-transform: uppercase;
}

.explorer-image-frame {
    position: sticky;
    top: 7.5rem;

    margin: 0;
    padding: .75rem;
    display: flex;
    flex-direction: column;

    background: var(--white);
    border: 1px solid;
    box-shadow: 8px 8px 0 var(--yellow);

    align-self: start;
}

.explorer-image-frame img {
    display: block;
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
}

.explorer-image-frame figcaption {
    padding-top: .75rem;
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    font: 500 .53rem var(--mono);
    text-transform: uppercase;
}

@media (max-width: 900px) {
    .explorer-image-frame {
        position: static;
    }
}