/* Lightbox */
.lightbox{
    position: fixed;
    inset: 0;
    display: none;
    z-index: 2000;
}

.lightbox.is-open{
    display: block;
}

.lightbox__backdrop{
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.65);
}

.lightbox__dialog{
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 20px;
}

.lightbox__stage{
    touch-action: pan-y;
    position: relative;
    width: min(92vw, 980px);
    height: min(82vh, 760px);
    border-radius: 18px;
    overflow: hidden;
    background: rgba(15,15,18,.65);
    border: 1px solid rgba(255,255,255,.18);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.lightbox__img{
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    user-select: none;
    touch-action: pan-y;
}

.lightbox__caption{
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 10px;
    font-size: 12px;
    letter-spacing: .08em;
    color: rgba(255,255,255,.75);
    text-transform: uppercase;
    text-shadow: 0 1px 2px rgba(0,0,0,.5);
    pointer-events: none;
}

.lightbox__btn{
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    border: 0;
    background: rgba(255,255,255,.12);
    color: rgba(255,255,255,.9);
    width: 46px;
    height: 46px;
    border-radius: 999px;
    cursor: pointer;
    display: grid;
    place-items: center;
    font-size: 28px;
    line-height: 1;
    transition: background .12s ease, transform .12s ease, opacity .12s ease;
    user-select: none;
}

.lightbox__btn:hover{
    background: rgba(255,255,255,.18);
}

.lightbox__btn--prev{ left: 18px; }
.lightbox__btn--next{ right: 18px; }

.lightbox__btn--close{
    top: 26px;
    right: 26px;
    transform: none;
    font-size: 30px;
    width: 44px;
    height: 44px;
}

/* optional: hide arrows on very small screens */
@media (max-width: 520px){
    .lightbox__btn--prev,
    .lightbox__btn--next{ width: 42px; height: 42px; font-size: 26px; }
}