/* ── 09 · COLLABORATIONS ──
   The People > Collaborations tab: the person list and the network graph
   with its zoom control.

   Part of the numbered set in css/ — the sheets are one stylesheet cut into
   pieces and index.html links them in this order. Order is the cascade: a
   rule here loses to the same-specificity rule in any later file. */

.people-collaborations {
    width: var(--content-inline-size);
    margin: 0 auto;
    padding: 1rem 0 0;
}

.people-collaborations p {
    max-width: 70rem;
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.08rem;
    line-height: 1.9;
    color: #3c3731;
    text-align: center;
}

.people-collaborations__note {
    font-size: 0.95rem;
    line-height: 1.75;
    color: #6b645b;
}

.people-collaborations__section {
    margin-bottom: 2.4rem;
}

.people-collaborations__section-header {
    display: grid;
    gap: 0.55rem;
    justify-items: center;
    margin-bottom: 1.15rem;
    text-align: center;
}

.people-collaborations__section-header h3 {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0;
    color: #3c3731;
}

.people-collaborations__section-header p {
    max-width: 48rem;
    margin: 0 auto;
    font-size: 0.98rem;
    font-style: italic;
    line-height: 1.75;
    color: #655f56;
}

.collaboration-people-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.75rem 2.8rem;
}

.collaboration-person {
    display: grid;
    justify-items: center;
    align-content: start;
    width: min(190px, 100%);
    gap: 0.85rem;
    padding: 0.25rem 0.35rem 0.45rem;
    text-align: center;
    border: 0;
    background: transparent;
}

.collaboration-person:focus-visible {
    outline: none;
}

.collaboration-person__photo-wrap {
    width: 118px;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border-radius: 999px;
    background: linear-gradient(160deg, rgba(107, 124, 199, 0.18), rgba(229, 236, 255, 0.7));
    box-shadow: 0 10px 22px rgba(63, 54, 42, 0.1);
    transition:
        transform 0.16s ease,
        box-shadow 0.16s ease;
}

.collaboration-person:hover .collaboration-person__photo-wrap,
.collaboration-person:focus-visible .collaboration-person__photo-wrap {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 16px 28px rgba(63, 54, 42, 0.16);
}

.collaboration-person__photo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.collaboration-person__body {
    display: grid;
    justify-items: center;
    gap: 0.35rem;
    min-width: 0;
}

.collaboration-person__name {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.02rem;
    font-weight: 400;
    line-height: 1.25;
    font-style: italic;
    color: #5a5a5a;
    overflow-wrap: anywhere;
}

.people-collaborations .collaboration-person__meta {
    max-width: 13rem;
    min-height: 2.45rem;
    margin: 0;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 0.76rem;
    line-height: 1.45;
    letter-spacing: 0.01em;
    text-align: center;
    color: #7b7883;
    opacity: 0;
    transform: translateY(-4px);
    transition:
        opacity 0.16s ease,
        transform 0.16s ease;
    pointer-events: none;
}

.collaboration-person:hover .collaboration-person__meta,
.collaboration-person:focus-visible .collaboration-person__meta {
    opacity: 1;
    transform: translateY(0);
}

.people-collaborations__layout {
    display: block;
}

@media (max-width: 700px) {
    .collaboration-people-list {
        gap: 1.35rem 1.4rem;
    }

    .collaboration-person {
        width: min(150px, 100%);
    }

    .collaboration-person__photo-wrap {
        width: 96px;
    }

    .collaboration-person__name {
        font-size: 0.95rem;
    }
}

.people-collaborations__canvas {
    padding: 0.9rem;
    border-radius: 30px;
    background: linear-gradient(180deg, rgba(8, 11, 23, 0.96), rgba(5, 7, 16, 0.99));
    border: 1px solid rgba(133, 154, 255, 0.12);
    box-shadow:
        0 28px 60px rgba(0, 0, 0, 0.24),
        inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.collaboration-network {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: 40rem;
    overflow: hidden;
    border-radius: 24px;
    background:
        radial-gradient(circle at 14% 20%, rgba(91, 129, 255, 0.2), transparent 28%),
        radial-gradient(circle at 82% 16%, rgba(186, 92, 255, 0.16), transparent 24%),
        radial-gradient(circle at 66% 72%, rgba(24, 186, 214, 0.14), transparent 24%),
        linear-gradient(180deg, rgba(7, 11, 24, 1), rgba(3, 6, 15, 1) 56%, rgba(2, 4, 10, 1));
    touch-action: none;
    user-select: none;
    cursor: grab;
    isolation: isolate;
}

.collaboration-network.is-dragging {
    cursor: grabbing;
}

.collaboration-network::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.collaboration-network::after {
    opacity: 0.45;
    background:
        radial-gradient(circle at 50% 50%, rgba(100, 140, 255, 0.08), transparent 42%),
        radial-gradient(circle at 24% 74%, rgba(55, 208, 255, 0.08), transparent 28%),
        radial-gradient(circle at 78% 30%, rgba(213, 109, 255, 0.08), transparent 30%);
}

.collaboration-network__svg {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: block;
}

/* ── Network zoom legend + hint ── */
.collaboration-network__controls {
    position: absolute;
    inset: 1.1rem;
    z-index: 2;
    /* Only the zoom pill takes clicks; the rest stays draggable. */
    pointer-events: none;
}

.collaboration-network__hint {
    position: absolute;
    left: 0;
    bottom: 0;
    margin: 0;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(214, 224, 255, 0.5);
    transition: opacity 0.45s ease;
}

/* Retires itself once the reader has taken the point. */
.collaboration-network.has-interacted .collaboration-network__hint {
    opacity: 0;
}

.collaboration-network__zoom {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.45rem 0.45rem;
    border-radius: 999px;
    background: rgba(10, 14, 30, 0.72);
    border: 1px solid rgba(133, 154, 255, 0.18);
    backdrop-filter: blur(6px);
    pointer-events: auto;
    cursor: default;
}

.collaboration-network__zoom-btn {
    display: grid;
    place-items: center;
    width: 1.5rem;
    height: 1.5rem;
    padding: 0;
    border: 1px solid rgba(133, 154, 255, 0.22);
    border-radius: 50%;
    background: transparent;
    color: rgba(226, 232, 255, 0.85);
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    transition:
        background 0.18s ease,
        border-color 0.18s ease,
        opacity 0.18s ease;
}

.collaboration-network__zoom-btn:hover:not(:disabled) {
    background: rgba(133, 154, 255, 0.18);
    border-color: rgba(133, 154, 255, 0.5);
}

.collaboration-network__zoom-btn:disabled {
    opacity: 0.3;
    cursor: default;
}

/* Vertical track; ticks mark each whole step between 1x and MAX_ZOOM
   (7 → 6 intervals). Reads bottom-up, so zoomed-in is a taller bar. */
.collaboration-network__zoom-scale {
    position: relative;
    width: 3px;
    height: 5.5rem;
    border-radius: 999px;
    background-color: rgba(196, 209, 255, 0.16);
    background-image: repeating-linear-gradient(to bottom, rgba(196, 209, 255, 0.45) 0 1px, transparent 1px calc(100% / 6));
}

.collaboration-network__zoom-fill {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 0;
    border-radius: 999px;
    background: rgba(226, 232, 255, 0.9);
    transition: height 0.18s ease;
}

.collaboration-network__zoom-level {
    text-align: center;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: rgba(226, 232, 255, 0.75);
    font-variant-numeric: tabular-nums;
}

@media (max-width: 640px) {
    .collaboration-network__hint {
        display: none;
    }
}

.collaboration-network__edge {
    stroke: rgba(196, 209, 255, 0.18);
    stroke-width: 1.05;
    stroke-linecap: round;
    vector-effect: non-scaling-stroke;
    pointer-events: none;
    transition:
        opacity 0.16s ease,
        stroke 0.16s ease,
        stroke-width 0.16s ease;
}

.collaboration-network__edge--root {
    stroke: rgba(255, 255, 255, 0.6);
}

.collaboration-network__edge--intra {
    stroke: rgba(122, 140, 191, 0.12);
}

.collaboration-network__edge.is-selected {
    stroke: rgba(255, 255, 255, 0.92);
}

.collaboration-network__edge.is-dimmed {
    opacity: 0.12;
}

.collaboration-network__node {
    pointer-events: all;
    cursor: pointer;
}

.collaboration-network__node-core {
    stroke: rgba(255, 255, 255, 0.9);
    stroke-width: 1.5;
    vector-effect: non-scaling-stroke;
    transition:
        transform 0.14s ease,
        filter 0.14s ease,
        opacity 0.14s ease;
    transform-box: fill-box;
    transform-origin: center;
}

.collaboration-network__node-core--root {
    fill: #f72568;
    stroke: rgba(255, 255, 255, 0.98);
    stroke-width: 3;
}

.collaboration-network__node-halo {
    fill: rgba(255, 255, 255, 0.08);
    opacity: 0;
    transition: opacity 0.14s ease;
    pointer-events: none;
}

.collaboration-network__node.is-selected .collaboration-network__node-halo,
.collaboration-network__node.is-connected .collaboration-network__node-halo {
    opacity: 0.78;
}

.collaboration-network__node.is-selected .collaboration-network__node-core {
    transform: scale(1.22);
    filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.24)) drop-shadow(0 0 26px rgba(116, 161, 255, 0.32));
}

.collaboration-network__node.is-connected .collaboration-network__node-core {
    transform: scale(1.12);
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.14)) drop-shadow(0 0 18px rgba(116, 161, 255, 0.18));
}

.collaboration-network__node.is-dimmed .collaboration-network__node-core {
    opacity: 0.34;
    filter: none;
}

.collaboration-network__node.is-dimmed .collaboration-network__node-halo {
    opacity: 0.08;
}

.collaboration-network__node.is-hovered .collaboration-network__node-halo,
.collaboration-network__node:hover .collaboration-network__node-halo {
    opacity: 1;
}

.collaboration-network__node.is-hovered .collaboration-network__node-core,
.collaboration-network__node:hover .collaboration-network__node-core {
    transform: scale(1.28);
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.22)) drop-shadow(0 0 22px rgba(116, 161, 255, 0.24));
}

.collaboration-network__label {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-weight: 600;
    letter-spacing: 0.01em;
    fill: rgba(230, 237, 255, 0.84);
    opacity: 0;
    pointer-events: none;
    paint-order: stroke fill;
    stroke: rgba(3, 6, 15, 0.96);
    stroke-width: 4px;
    stroke-linejoin: round;
    transition:
        opacity 0.14s ease,
        fill 0.14s ease,
        transform 0.14s ease;
    transform-box: fill-box;
    transform-origin: center;
    will-change: opacity, transform;
}

.collaboration-network__label.is-visible,
.collaboration-network__label.is-revealed {
    opacity: 1;
}

.collaboration-network__label--direct,
.collaboration-network__label--prominent {
    fill: rgba(247, 250, 255, 0.96);
}

.collaboration-network__label.is-visible.is-dimmed {
    opacity: 0.18;
}

.collaboration-network__label.is-emphasized {
    opacity: 1;
    fill: rgba(255, 255, 255, 1);
    transform: scale(1.04);
}

.collaboration-network__empty {
    display: grid;
    place-items: center;
    height: 100%;
    min-height: 28rem;
    padding: 2rem;
    border-radius: 24px;
    border: 1px dashed rgba(85, 100, 160, 0.22);
    color: #5f6574;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    text-align: center;
    line-height: 1.7;
}