/* ============================================================
   Photo viewer — gallery lightbox (PhotoGallery.razor)

   Desktop: framed dark dialog — header (context, "12 of 35",
   close), the photo with prev/next on the left, and a details
   panel on the right (title/date, reactions, people, actions).
   Phones: full-screen; the panel stacks under the photo and the
   whole body scrolls.

   Scoped under .lightbox-shell / .lightbox-panel so the older
   .lightbox-overlay / .lightbox-close users (player profile,
   YouTube playlist) are unaffected. Colours use the
   --color-viewer-* tokens in site.css (always-dark chrome).
   Reaction pieces inside the panel are styled in reactions.css.
   ============================================================ */

.lightbox-shell {
    position: relative;
    display: flex;
    flex-direction: column;
    width: min(var(--content-width), calc(100vw - (var(--space-6) * 2)));
    height: calc(100vh - (var(--space-6) * 2));
    background: var(--color-viewer-bg);
    color: var(--color-viewer-text);
    border: 1px solid var(--color-viewer-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-viewer);
    overflow: hidden;
}

/* ── Header ── */
.lightbox-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4) var(--space-3) var(--space-5);
    border-bottom: 1px solid var(--color-viewer-border);
}

.lightbox-head-text {
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
    min-width: 0;
}

.lightbox-head-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
}

.lightbox-head-count {
    flex: 0 0 auto;
    color: var(--color-viewer-text-muted);
    font-size: var(--font-size-sm);
}

.lightbox-shell .lightbox-close {
    position: static;
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: calc(var(--space-6) + var(--space-1));
    height: calc(var(--space-6) + var(--space-1));
    padding: 0;
    border-radius: 50%;
    color: var(--color-viewer-text);
    font-size: var(--font-size-lg);
    opacity: 0.8;
}

    .lightbox-shell .lightbox-close:hover {
        opacity: 1;
        background: var(--color-viewer-hover);
    }

/* ── Body: photo stage + details panel ── */
.lightbox-body {
    flex: 1 1 auto;
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 22rem;
}

.lightbox-stage {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 0;
    padding: var(--space-4) var(--space-8);
}

    .lightbox-stage img {
        max-width: 100%;
        max-height: 100%;
        object-fit: contain;
        border-radius: var(--radius-sm);
    }

.lightbox-shell .lightbox-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: calc(var(--space-6) + var(--space-3));
    height: calc(var(--space-6) + var(--space-3));
    padding: 0;
    background: var(--color-viewer-surface-raised);
    border: 1px solid var(--color-viewer-border-strong);
    border-radius: 50%;
    color: var(--color-viewer-text);
    font-size: var(--font-size-xl);
    opacity: 0.9;
}

@media (hover: hover) {
    .lightbox-shell .lightbox-nav:hover {
        opacity: 1;
        background: var(--color-viewer-surface);
    }
}

.lightbox-shell .lightbox-prev {
    left: var(--space-4);
}

.lightbox-shell .lightbox-next {
    right: var(--space-4);
}

/* ── Details panel ── */
.lightbox-panel {
    min-height: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-5);
    background: var(--color-viewer-surface);
    border-left: 1px solid var(--color-viewer-border);
}

.lightbox-title {
    margin: 0;
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--text-section-title-weight);
    line-height: var(--line-height-tight);
    color: var(--color-viewer-text);
    overflow-wrap: anywhere;
}

.lightbox-date {
    margin: var(--space-1) 0 0;
    color: var(--color-viewer-text-muted);
    font-size: var(--font-size-sm);
}

.lightbox-panel .lightbox-reactions {
    display: block;
    padding: 0;
}

.lightbox-section,
.lightbox-panel .lightbox-actions {
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-viewer-border);
}

.lightbox-section-title {
    margin: 0;
    font-family: var(--font-family-heading);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    color: var(--color-viewer-text);
}

/* People in this photo (MediaTagger) */
.lightbox-panel .media-tagger {
    margin-top: var(--space-3);
}

.lightbox-panel .media-tags-icon {
    display: none;
}

.lightbox-panel .media-tags-empty {
    margin: 0 0 var(--space-2);
    color: var(--color-viewer-text-muted);
    font-size: var(--font-size-sm);
}

.lightbox-panel .media-tag-chip {
    padding: var(--space-1) var(--space-3);
    background: var(--color-viewer-surface-raised);
    border: 1px solid var(--color-viewer-border-strong);
    color: var(--color-viewer-text);
}

    .lightbox-panel .media-tag-chip:hover {
        background: var(--color-viewer-hover);
        color: var(--color-viewer-text);
    }

.lightbox-panel .media-tag-remove {
    color: var(--color-viewer-text-muted);
}

    .lightbox-panel .media-tag-remove:hover {
        color: var(--color-danger);
    }

.lightbox-panel .media-tag-actions {
    flex-wrap: wrap;
}

.lightbox-panel .media-tag-picker {
    max-width: none;
    background: var(--color-viewer-surface-raised);
    border-color: var(--color-viewer-border-strong);
    box-shadow: none;
}

.lightbox-panel .media-tag-search {
    background: var(--color-viewer-bg);
    color: var(--color-viewer-text);
    border-color: var(--color-viewer-border-strong);
}

    .lightbox-panel .media-tag-search::placeholder {
        color: var(--color-viewer-text-muted);
    }

.lightbox-panel .media-tag-results {
    background: var(--color-viewer-surface);
    border-color: var(--color-viewer-border);
}

.lightbox-panel .media-tag-result {
    color: var(--color-viewer-text);
}

    .lightbox-panel .media-tag-result:hover:not(:disabled) {
        background: var(--color-viewer-hover);
    }

.lightbox-panel .media-tag-status {
    color: var(--color-viewer-text-muted);
}

/* Outlined buttons — tag actions, Share, Download, Set as profile */
.lightbox-panel .btn-media-tag,
.lightbox-panel .lightbox-action-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: transparent;
    border: 1px solid var(--color-viewer-border-strong);
    border-radius: var(--radius-sm);
    color: var(--color-viewer-text);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    transform: none;
}

    .lightbox-panel .btn-media-tag:hover,
    .lightbox-panel .lightbox-action-btn:hover {
        background: var(--color-viewer-hover);
        border-color: var(--color-viewer-text-muted);
        color: var(--color-viewer-text);
    }

.lightbox-panel .lightbox-action-profile {
    border-color: var(--color-accent-border);
}

.lightbox-panel .lightbox-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-2);
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 0;
}

.lightbox-panel .lightbox-action-status {
    flex-basis: 100%;
    color: var(--color-viewer-text-muted);
}

.lightbox-panel .lightbox-action-error {
    color: var(--color-danger);
}

/* Share menu opens upward — the actions sit at the bottom of the panel */
.lightbox-panel .share-menu {
    top: auto;
    bottom: calc(100% + var(--space-2));
    left: 0;
    right: auto;
}

/* ── Narrower desktops ── */
@media (max-width: 1100px) {
    .lightbox-body {
        grid-template-columns: minmax(0, 1fr) 19rem;
    }

    .lightbox-stage {
        padding: var(--space-4) var(--space-7);
    }
}

/* ── Tablets & phones: full-screen, panel under the photo ── */
@media (max-width: 899px) {
    .lightbox-shell {
        width: 100%;
        height: 100%;
        border: none;
        border-radius: 0;
        box-shadow: none;
    }

    .lightbox-head {
        padding: calc(var(--space-2) + env(safe-area-inset-top)) var(--space-3) var(--space-2) var(--space-4);
    }

    .lightbox-head-text {
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }

    .lightbox-body {
        display: block;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .lightbox-stage {
        height: 62vh;
        padding: var(--space-2) 0;
    }

        .lightbox-stage img {
            border-radius: 0;
        }

    .lightbox-shell .lightbox-nav {
        width: calc(var(--space-6) + var(--space-2));
        height: calc(var(--space-6) + var(--space-2));
        font-size: var(--font-size-lg);
    }

    .lightbox-shell .lightbox-prev {
        left: var(--space-2);
    }

    .lightbox-shell .lightbox-next {
        right: var(--space-2);
    }

    .lightbox-panel {
        overflow: visible;
        padding: var(--space-4) var(--space-4) calc(var(--space-6) + env(safe-area-inset-bottom));
        border-left: none;
        border-top: 1px solid var(--color-viewer-border);
    }

    .lightbox-title {
        font-size: var(--font-size-lg);
    }
}