/* ==========================================================================
   Blog image lightbox (blog details article only).
   Scoped under .bil-* / [data-bil-*]. Uses site design tokens.
   ========================================================================== */

:root {
    --bil-ease: cubic-bezier(0.22, 1, 0.36, 1);
    --bil-duration: 300ms;
    --bil-backdrop: rgba(8, 10, 15, 0.92);
    --bil-z-index: 1500;
}

/* ---------- In-article zoomable images ---------- */
.bil-zoomable {
    cursor: zoom-in;
}

.blog-block-image-cell,
.blog-detail-secondary-figure {
    position: relative;
}

img.bil-zoomable {
    transition:
        transform var(--bil-duration) var(--bil-ease),
        box-shadow var(--bil-duration) var(--bil-ease);
}

.blog-block-image-cell:hover img.bil-zoomable,
.blog-detail-secondary-figure:hover img.bil-zoomable {
    transform: scale(1.015) translateY(-2px);
    box-shadow: var(--shadow-medium);
}

img.bil-zoomable:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 3px;
}

/* Zoom badge: always in the accessibility tree, revealed on hover/focus
   on devices with hover, always visible on touch (no hover capability). */
.bil-badge {
    position: absolute;
    inset-inline-end: var(--spacing-md);
    inset-block-end: var(--spacing-md);
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: zoom-in;
    opacity: 0;
    transform: scale(0.85);
    transition:
        opacity var(--bil-duration) var(--bil-ease),
        transform var(--bil-duration) var(--bil-ease),
        color var(--transition-fast),
        border-color var(--transition-fast);
}

.blog-block-image-cell:hover .bil-badge,
.blog-detail-secondary-figure:hover .bil-badge,
.blog-block-image-cell:focus-within .bil-badge,
.blog-detail-secondary-figure:focus-within .bil-badge {
    opacity: 1;
    transform: scale(1);
}

@media (hover: none) {
    .bil-badge {
        opacity: 1;
        transform: scale(1);
    }
}

.bil-badge:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.bil-badge:focus-visible {
    opacity: 1;
    transform: scale(1);
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.bil-badge svg {
    display: block;
    width: 17px;
    height: 17px;
}

/* ---------- Lightbox dialog ---------- */
.bil {
    position: fixed;
    inset: 0;
    z-index: var(--bil-z-index);
    display: grid;
    place-items: center;
    padding: var(--spacing-xl);
}

.bil[hidden] {
    display: none;
}

.bil__backdrop {
    position: absolute;
    inset: 0;
    background: var(--bil-backdrop);
    opacity: 0;
    transition: opacity var(--bil-duration) ease;
    cursor: zoom-out;
}

.bil.is-open .bil__backdrop {
    opacity: 1;
}

.bil__figure {
    position: relative;
    margin: 0;
    max-width: min(1100px, 94vw);
    max-height: 86vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    transform: scale(0.96);
    transition:
        opacity var(--bil-duration) var(--bil-ease),
        transform var(--bil-duration) var(--bil-ease);
}

.bil.is-open .bil__figure {
    opacity: 1;
    transform: scale(1);
}

.bil__viewport {
    overflow: hidden;
    display: grid;
    place-items: center;
    max-width: 100%;
    max-height: calc(86vh - 96px);
    border-radius: var(--radius-md);
    touch-action: none;
    cursor: grab;
}

.bil__viewport:active {
    cursor: grabbing;
}

.bil__img {
    display: block;
    max-width: min(1100px, 94vw);
    max-height: calc(86vh - 96px);
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
    user-select: none;
    -webkit-user-drag: none;
    transform-origin: center center;
    will-change: transform;
}

.bil__caption {
    margin-top: var(--spacing-md);
    max-width: 70ch;
    color: rgba(255, 255, 255, 0.82);
    font-size: var(--font-size-sm);
    line-height: 1.55;
    text-align: center;
    overflow-wrap: anywhere;
}

/* Toolbar */
.bil__toolbar {
    position: absolute;
    inset-block-start: var(--spacing-xl);
    inset-inline: 0;
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.bil__btn {
    pointer-events: auto;
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: var(--radius-full);
    background: rgba(20, 24, 33, 0.72);
    color: #fff;
    cursor: pointer;
    transition:
        background-color var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast);
}

.bil__btn:hover {
    background: rgba(35, 42, 56, 0.9);
    border-color: rgba(255, 255, 255, 0.45);
}

.bil__btn:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

.bil__btn svg {
    display: block;
    width: 18px;
    height: 18px;
}

.bil__close {
    position: fixed;
    inset-block-start: var(--spacing-xl);
    inset-inline-end: var(--spacing-xl);
}

/* Counter (e.g. "2 / 5") */
.bil__counter {
    position: fixed;
    inset-block-start: calc(var(--spacing-xl) + 10px);
    inset-inline-start: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.75);
    font-size: var(--font-size-sm);
    font-variant-numeric: tabular-nums;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .bil {
        padding: var(--spacing-md);
    }

    .bil__viewport,
    .bil__img {
        max-height: calc(92vh - 120px);
    }

    .bil__btn {
        width: 44px;
        height: 44px;
    }

    .bil__close {
        inset-block-start: var(--spacing-md);
        inset-inline-end: var(--spacing-md);
    }

    .bil__counter {
        inset-block-start: calc(var(--spacing-md) + 12px);
        inset-inline-start: var(--spacing-md);
    }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    img.bil-zoomable,
    .bil-badge,
    .bil__backdrop,
    .bil__figure,
    .bil__btn {
        transition: none;
    }

    .blog-block-image-cell:hover img.bil-zoomable,
    .blog-detail-secondary-figure:hover img.bil-zoomable {
        transform: none;
    }

    .bil__figure {
        opacity: 1;
        transform: none;
    }

    .bil__backdrop {
        opacity: 1;
    }
}