/* Fullscreen media lightbox/player — images (zoom/pan/nav), video, audio.
   Loaded on every page that can render generated/attached media
   (see partials/head.php + chat.php). Pairs with assets/js/media-lightbox.js. */

.media-lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    flex-direction: column;
    background: rgba(8, 8, 12, 0.94);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

.media-lightbox-overlay.is-open {
    display: flex;
}

body.media-lightbox-locked {
    overflow: hidden;
}

.media-lightbox-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .75rem 1rem;
    flex: 0 0 auto;
    z-index: 2;
}

.media-lightbox-toolbar-group {
    display: flex;
    gap: .5rem;
}

.media-lightbox-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, .18);
    background: rgba(255, 255, 255, .08);
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background .15s ease, transform .15s ease;
    text-decoration: none;
}

.media-lightbox-btn:hover {
    background: rgba(255, 255, 255, .2);
    transform: translateY(-1px);
}

.media-lightbox-close {
    background: rgba(220, 53, 69, .25);
}

.media-lightbox-close:hover {
    background: rgba(220, 53, 69, .45);
}

.media-lightbox-stage {
    position: relative;
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 0 4rem 2rem;
    min-height: 0;
}

.media-lightbox-image {
    max-width: 92vw;
    max-height: 82vh;
    object-fit: contain;
    cursor: zoom-in;
    touch-action: none;
    user-select: none;
    transition: transform .12s ease-out;
    will-change: transform;
}

.media-lightbox-image.is-zoomed {
    cursor: grab;
}

.media-lightbox-image.is-zoomed:active {
    cursor: grabbing;
}

.media-lightbox-video,
.media-lightbox-audio {
    max-width: 92vw;
    max-height: 82vh;
    display: none;
    background: #000;
    border-radius: .5rem;
}

.media-lightbox-audio {
    width: min(560px, 90vw);
    height: 54px;
    border-radius: 999px;
}

.media-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 3rem;
    height: 3rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, .18);
    background: rgba(255, 255, 255, .08);
    color: #fff;
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.media-lightbox-nav:hover {
    background: rgba(255, 255, 255, .2);
}

.media-lightbox-prev {
    left: 1rem;
}

.media-lightbox-next {
    right: 1rem;
}

.media-lightbox-counter {
    position: absolute;
    bottom: .9rem;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, .85);
    font-size: .85rem;
    letter-spacing: .02em;
    background: rgba(0, 0, 0, .35);
    padding: .2rem .7rem;
    border-radius: 999px;
}

/* "Expand to fullscreen player" affordance rendered next to inline
   <video>/<audio> attachments in message bubbles. */
.message-media-block {
    position: relative;
}

.message-media-expand {
    all: unset;
    position: absolute;
    top: .5rem;
    right: .5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    background: rgba(0, 0, 0, .55);
    color: #fff;
    cursor: pointer;
    font-size: .95rem;
    z-index: 1;
}

.message-media-expand:hover {
    background: rgba(0, 0, 0, .75);
}

@media (max-width: 640px) {
    .media-lightbox-stage {
        padding: 0 3rem 1rem;
    }
    .media-lightbox-nav {
        width: 2.4rem;
        height: 2.4rem;
    }
    .media-lightbox-btn {
        width: 2.2rem;
        height: 2.2rem;
        font-size: 1rem;
    }
    .media-lightbox-image,
    .media-lightbox-video {
        max-width: 96vw;
        max-height: 74vh;
    }
}

/* Generic file/document attachment fallback (no inline preview support --
   e.g. PDFs, text files, future document-generation output). */
.message-file-card {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .6rem .9rem;
    border-radius: .6rem;
    border: 1px solid rgba(255, 255, 255, .12);
    background: rgba(255, 255, 255, .04);
    color: inherit;
    text-decoration: none;
    max-width: 320px;
}

.message-file-card:hover {
    background: rgba(255, 255, 255, .08);
}

.message-file-card .message-file-name {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}