/*
 * LuckyAff Lightbox — minimal dependency-free image lightbox/gallery.
 * Activated by /assets/js/lightbox.js inside post content containers.
 */

/* Indicate clickable content images */
.la-content img[data-lb-index],
.la-prose img[data-lb-index],
.entry-content img[data-lb-index] {
    cursor: zoom-in;
    transition: opacity 0.2s ease, transform 0.2s ease;
}
.la-content img[data-lb-index]:hover,
.la-prose img[data-lb-index]:hover,
.entry-content img[data-lb-index]:hover {
    opacity: 0.92;
}

/* Modal */
.la-lightbox {
    position: fixed;
    inset: 0;
    z-index: 100000;
    background: rgba(8, 12, 22, 0.94);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.la-lightbox.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.la-lightbox__stage {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 64px 72px;
    box-sizing: border-box;
}

.la-lightbox__figure {
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    max-width: 100%;
    max-height: 100%;
}

.la-lightbox__img {
    max-width: 100%;
    max-height: calc(100vh - 160px);
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
    user-select: none;
    -webkit-user-drag: none;
}

.la-lightbox__caption {
    color: rgba(255, 255, 255, 0.85);
    text-align: center;
    font-size: 0.9rem;
    line-height: 1.4;
    max-width: 720px;
    padding: 0 1rem;
}
.la-lightbox__caption:empty {
    display: none;
}

/* Controls */
.la-lightbox__btn {
    position: absolute;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #fff;
    cursor: pointer;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}
.la-lightbox__btn svg {
    width: 22px;
    height: 22px;
}
.la-lightbox__btn:hover {
    background: rgba(255, 255, 255, 0.18);
}
.la-lightbox__btn:active {
    transform: scale(0.94);
}
.la-lightbox__btn:disabled {
    opacity: 0.25;
    cursor: default;
}
.la-lightbox__btn:disabled:hover {
    background: rgba(255, 255, 255, 0.08);
}

.la-lightbox__close { top: 16px; right: 16px; }
.la-lightbox__prev  { left: 16px;  top: 50%; transform: translateY(-50%); }
.la-lightbox__next  { right: 16px; top: 50%; transform: translateY(-50%); }
.la-lightbox__prev:active { transform: translateY(-50%) scale(0.94); }
.la-lightbox__next:active { transform: translateY(-50%) scale(0.94); }

.la-lightbox__counter {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8125rem;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.04em;
}

/* Loading state */
.la-lightbox__img.is-loading {
    opacity: 0;
}
.la-lightbox.is-loading::after {
    content: "";
    position: absolute;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.15);
    border-top-color: rgba(255, 255, 255, 0.7);
    animation: la-lightbox-spin 0.7s linear infinite;
}
@keyframes la-lightbox-spin {
    to { transform: rotate(360deg); }
}

/* Mobile */
@media (max-width: 640px) {
    .la-lightbox__stage {
        padding: 56px 12px 64px;
    }
    .la-lightbox__btn {
        width: 40px;
        height: 40px;
    }
    .la-lightbox__btn svg {
        width: 18px;
        height: 18px;
    }
    .la-lightbox__close { top: 10px; right: 10px; }
    .la-lightbox__prev  { left: 8px; }
    .la-lightbox__next  { right: 8px; }
    .la-lightbox__img {
        max-height: calc(100vh - 140px);
        border-radius: 4px;
    }
    .la-lightbox__caption {
        font-size: 0.8125rem;
    }
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .la-lightbox,
    .la-lightbox__btn,
    .la-content img[data-lb-index],
    .la-prose img[data-lb-index],
    .entry-content img[data-lb-index] {
        transition: none;
    }
    .la-lightbox.is-loading::after {
        animation: none;
    }
}