/* images.css — Figure layout, captions, and lightbox overlay */

/* ============================================================
   FIGURE BASE (supplements typography.css figure rules)
   ============================================================ */

figure {
    margin: 2rem 0;
    max-width: 100%;
    text-align: center;
}

figure img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 3px;
}

figcaption {
    font-family: var(--font-sans);
    font-size: var(--text-size-small);
    color: var(--text-muted);
    text-align: center;
    margin-top: 0.6rem;
}

/* Zoom cursor for lightbox-enabled images */
img[data-lightbox] {
    cursor: zoom-in;
}


/* ============================================================
   LIGHTBOX OVERLAY
   ============================================================ */

.lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 800;
    background: rgba(0, 0, 0, 0.88);

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;

    opacity: 0;
    visibility: hidden;
    pointer-events: none;

    transition:
        opacity var(--transition-fast),
        visibility var(--transition-fast);
}

.lightbox-overlay.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.lightbox-img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 3px;
    display: block;
}

.lightbox-caption {
    font-family: var(--font-sans);
    font-size: var(--text-size-small);
    color: rgba(255, 255, 255, 0.65);
    text-align: center;
    max-width: 60ch;
    line-height: 1.5;
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 2em;
    padding: 0.25em 0.75em;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.22);
}


/* ============================================================
   REDUCED MOTION
   ============================================================ */

[data-reduce-motion] .lightbox-overlay {
    transition: none;
}

@media (prefers-reduced-motion: reduce) {
    .lightbox-overlay {
        transition: none;
    }
}