/* =========================================================
   Product Image Gallery — brand-themed, responsive
   Edit the CSS variables below to re-skin the component.
   ========================================================= */
:root{
    --pg-primary:#0e8f47;        /* brand green (buttons, active states) */
    --pg-primary-dark:#0b6a37;   /* deep green (hover, headings) */
    --pg-text:#25262c;           /* main dark text */
    --pg-text-muted:#6b7280;
    --pg-bg-tint:#f0fdf4;        /* faint green tint used for borders/hover bg */
    --pg-white:#ffffff;
    --pg-border-radius:14px;
    --pg-shadow:0 6px 20px rgba(0,0,0,0.08);
    --pg-shadow-hover:0 12px 28px rgba(0,0,0,0.14);
    --pg-transition:0.3s ease;
}

.pg-gallery{
    max-width:1200px;
    margin:0 auto;
    padding:20px;
}

/* ---------- Main featured image ---------- */
.pg-gallery__main{
    position:relative;
    background:var(--pg-white);
    border-radius:var(--pg-border-radius);
    box-shadow:var(--pg-shadow);
    overflow:hidden;
    cursor:zoom-in;
    aspect-ratio:4/3;
}

.pg-gallery__main img{
    width:100%;
    height:100%;
    object-fit:cover;
    display:block;
    transition:opacity 0.25s ease;
}

.pg-gallery__main img.pg-fade{
    opacity:0;
}

.pg-gallery__zoom-btn{
    position:absolute;
    right:16px;
    bottom:16px;
    width:44px;
    height:44px;
    border:none;
    border-radius:50%;
    background:var(--pg-primary);
    color:var(--pg-white);
    font-size:16px;
    display:flex;
    align-items:center;
    justify-content:center;
    cursor:pointer;
    box-shadow:0 4px 12px rgba(0,0,0,0.25);
    transition:background var(--pg-transition), transform var(--pg-transition);
}

.pg-gallery__zoom-btn:hover{
    background:var(--pg-primary-dark);
    transform:scale(1.08);
}

/* ---------- Thumbnails ---------- */
.pg-gallery__thumbs{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:16px;
}

.pg-gallery__thumb{
    flex:0 0 auto;
    width:88px;
    height:88px;
    padding:0;
    border-radius:10px;
    border:3px solid transparent;
    background:var(--pg-white);
    overflow:hidden;
    cursor:pointer;
    box-shadow:0 2px 8px rgba(0,0,0,0.08);
    transition:border-color var(--pg-transition), transform var(--pg-transition), box-shadow var(--pg-transition);
}

.pg-gallery__thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
    display:block;
}

.pg-gallery__thumb:hover{
    transform:translateY(-3px);
    box-shadow:var(--pg-shadow-hover);
}

.pg-gallery__thumb.is-active{
    border-color:var(--pg-primary);
    background:var(--pg-bg-tint);
}

.pg-gallery__thumb:focus-visible{
    outline:2px solid var(--pg-primary-dark);
    outline-offset:2px;
}

/* ---------- Lightbox ---------- */
.pg-lightbox{
    position:fixed;
    inset:0;
    background:rgba(20,20,20,0.92);
    display:flex;
    align-items:center;
    justify-content:center;
    z-index:9999;
    opacity:0;
    visibility:hidden;
    transition:opacity var(--pg-transition);
}

.pg-lightbox.is-open{
    opacity:1;
    visibility:visible;
}

.pg-lightbox__stage{
    max-width:90vw;
    max-height:85vh;
    display:flex;
    align-items:center;
    justify-content:center;
}

.pg-lightbox__stage img{
    max-width:90vw;
    max-height:85vh;
    object-fit:contain;
    border-radius:8px;
    box-shadow:0 10px 40px rgba(0,0,0,0.5);
    transform:scale(0.96);
    transition:transform var(--pg-transition);
}

.pg-lightbox.is-open .pg-lightbox__stage img{
    transform:scale(1);
}

.pg-lightbox__close,
.pg-lightbox__nav{
    position:absolute;
    background:var(--pg-primary);
    color:var(--pg-white);
    border:none;
    border-radius:50%;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:center;
    transition:background var(--pg-transition), transform var(--pg-transition);
}

.pg-lightbox__close:hover,
.pg-lightbox__nav:hover{
    background:var(--pg-primary-dark);
}

.pg-lightbox__close{
    top:20px;
    right:20px;
    width:44px;
    height:44px;
    font-size:22px;
}

.pg-lightbox__nav{
    top:50%;
    width:50px;
    height:50px;
    font-size:20px;
    transform:translateY(-50%);
}

.pg-lightbox__prev{ left:20px; }
.pg-lightbox__next{ right:20px; }

.pg-lightbox__counter{
    position:absolute;
    bottom:20px;
    left:50%;
    transform:translateX(-50%);
    color:var(--pg-white);
    background:rgba(0,0,0,0.4);
    padding:6px 16px;
    border-radius:20px;
    font-size:14px;
    letter-spacing:0.5px;
}

/* ---------- Responsive ---------- */
@media(min-width:768px){
    .pg-gallery__stage{
        display:grid;
        grid-template-columns:1fr;
    }
}

@media(max-width:576px){
    .pg-gallery__main{ aspect-ratio:1/1; }
    .pg-gallery__thumb{ width:70px; height:70px; }
    .pg-lightbox__nav{ width:40px; height:40px; font-size:16px; }
    .pg-lightbox__prev{ left:8px; }
    .pg-lightbox__next{ right:8px; }
    .pg-lightbox__close{ top:10px; right:10px; }
}