/* Photo (Lab Life) page — year chips, event groups, gallery grid, lightbox. */

/* ── Year filter ────────────────────────────────────────── */
.photo-filter { margin-bottom: var(--sp-5); }
.photo-filter__count {
    margin-left: 8px;
    font-size: var(--fs-tiny);
    font-weight: 600;
    color: var(--faint);
}
.chip.is-active .photo-filter__count { color: var(--paper); opacity: .75; }

/* ── Year summary ───────────────────────────────────────── */
.photo-summary {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--sp-2) var(--sp-4);
    border-top: var(--rule-heavy);
    padding-top: var(--sp-3);
    margin-bottom: var(--sp-5);
}
.photo-summary__year {
    margin: 0;
    font-size: var(--fs-h2);
    font-weight: 800;
    letter-spacing: -.02em;
}
.photo-summary__count {
    margin: 0;
    font-size: var(--fs-small);
    color: var(--muted);
}

/* ── Event groups ───────────────────────────────────────── */
.photo-groups { display: grid; gap: var(--sp-6); }

.photo-group__header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--sp-2) var(--sp-3);
    padding-bottom: var(--sp-2);
    border-bottom: var(--hair);
}
.photo-group__title {
    margin: 0;
    font-size: var(--fs-h3);
    font-weight: 700;
}
.photo-group__date {
    margin: 4px 0 0;
    font-size: var(--fs-tiny);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--muted);
}

/* ── Photo grid / cards ─────────────────────────────────── */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--sp-3);
    margin-top: var(--sp-3);
}

.photo-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    border: var(--hair);
    background: var(--paper);
    transition: border-color var(--dur) var(--ease);
}
.photo-card:hover,
.photo-card:focus-within { border-color: var(--ink); }

.photo-card__media {
    position: relative;
    display: block;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--paper-soft);
}
.photo-card__img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity var(--dur-slow) var(--ease);
}
/* Fade-in once loaded; without JS images stay visible. */
html.js .photo-card__img { opacity: 0; }
html.js .photo-card__img.loaded { opacity: 1; }

.photo-card__zoom {
    position: absolute;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--ink);
    color: var(--paper);
    font-size: 1rem;
    opacity: 0;
    transition: opacity var(--dur) var(--ease);
}
.photo-card__media:hover .photo-card__zoom,
.photo-card__media:focus-visible .photo-card__zoom { opacity: 1; }

.photo-card__body {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--sp-3);
}
.photo-card__title {
    margin: 0;
    font-size: var(--fs-small);
    font-weight: 700;
}
.photo-card__date {
    margin: 0;
    font-size: var(--fs-tiny);
    color: var(--muted);
}
.photo-card__text {
    margin: 2px 0 0;
    font-size: var(--fs-small);
    color: var(--muted);
    overflow-wrap: anywhere;
    max-height: 5.2em;
    overflow-y: auto;
    scrollbar-width: thin;
}

/* ── Lightbox ───────────────────────────────────────────── */
body.lightbox-open { overflow: hidden; }

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(12px, 3vw, 40px);
    opacity: 0;
    transition: opacity var(--dur) var(--ease);
}
.lightbox.is-open { opacity: 1; }
.lightbox[hidden] { display: none; }

.lightbox__scrim {
    position: absolute;
    inset: 0;
    background: rgba(17, 19, 24, .94);
}
.lightbox__frame {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: min(1100px, 100%);
    max-height: 100%;
    min-width: 0;
}
.lightbox__figure {
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-3);
    min-width: 0;
}
.lightbox__img {
    display: block;
    max-width: 100%;
    max-height: min(68vh, 720px);
    object-fit: contain;
}
.lightbox__caption {
    width: 100%;
    max-width: 720px;
    text-align: center;
    color: var(--paper);
}
.lightbox__caption[hidden] { display: none; }

/* Server-rendered caption markup (lb-*) from photo.lightbox_description. */
.lightbox__caption .lb-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2) var(--sp-3);
    margin-bottom: 6px;
}
.lightbox__caption .lb-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--fs-tiny);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--track-caps);
    color: var(--accent);
}
.lightbox__caption .lb-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--fs-tiny);
    color: rgba(255, 255, 255, .65);
}
.lightbox__caption .lb-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
}
.lightbox__caption .lb-desc {
    margin-top: 4px;
    font-size: var(--fs-small);
    line-height: 1.55;
    color: rgba(255, 255, 255, .72);
    max-height: 18vh;
    overflow-y: auto;
    scrollbar-width: thin;
}

.lightbox__counter {
    margin: var(--sp-3) 0 0;
    font-size: var(--fs-tiny);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--track-caps);
    color: rgba(255, 255, 255, .55);
    text-align: center;
}

.lightbox__control {
    position: absolute;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, .45);
    background: transparent;
    color: #ffffff;
    font-size: 1.15rem;
    cursor: pointer;
    transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.lightbox__control:hover {
    background: #ffffff;
    border-color: #ffffff;
    color: var(--ink);
}
.lightbox__control:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.lightbox__control[hidden] { display: none; }
.lightbox__control--close { top: clamp(12px, 3vw, 24px); right: clamp(12px, 3vw, 24px); }
.lightbox__control--prev { left: clamp(8px, 2.5vw, 24px); top: 50%; transform: translateY(-50%); }
.lightbox__control--next { right: clamp(8px, 2.5vw, 24px); top: 50%; transform: translateY(-50%); }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 639px) {
    .photo-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

    .lightbox { padding: 12px 12px 76px; }
    .lightbox__img { max-height: 56vh; }
    .lightbox__control { width: 42px; height: 42px; }
    .lightbox__control--prev { top: auto; bottom: 14px; left: 14px; transform: none; }
    .lightbox__control--next { top: auto; bottom: 14px; right: 14px; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
    .lightbox,
    .photo-card,
    .photo-card__img,
    .photo-card__zoom,
    .lightbox__control { transition: none; }
}