/* NBP Gallery Frontend Styles */
:root {
    --nbp-accent: #B87456;
    --nbp-blue:   #5B7699;
    --nbp-cols: 3;
    --nbp-gap: 4px;
    --nbp-radius: 0px;
    --nbp-transition: 0.25s ease;
}

/* ── Base Gallery ── */
.nbp-gallery {
    width: 100%;
    box-sizing: border-box;
}

/* ── Uniform Grid ── */
.nbp-layout-grid,
.nbp-layout-auto {
    display: grid;
    grid-template-columns: repeat(var(--nbp-cols), 1fr);
    gap: var(--nbp-gap);
}

/* ── Masonry (CSS columns) ── */
.nbp-layout-masonry .nbp-masonry-wrap {
    columns: var(--nbp-cols);
    column-gap: var(--nbp-gap);
}
.nbp-layout-masonry .nbp-item {
    break-inside: avoid;
    margin-bottom: var(--nbp-gap);
}
.nbp-layout-masonry .nbp-item img {
    height: auto;
    aspect-ratio: unset;
}

/* ── Featured Layout ── */
.nbp-layout-featured .nbp-featured-hero {
    width: 100%;
    margin-bottom: var(--nbp-gap);
}
.nbp-layout-featured .nbp-featured-hero .nbp-item img {
    height: 420px;
    aspect-ratio: unset;
}
.nbp-layout-featured .nbp-grid-wrap {
    display: grid;
    grid-template-columns: repeat(var(--nbp-cols), 1fr);
    gap: var(--nbp-gap);
}

/* ── Item ── */
.nbp-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--nbp-radius);
    cursor: pointer;
    background: #eee;
    display: block;
}
.nbp-layout-grid .nbp-item,
.nbp-layout-auto .nbp-item {
    aspect-ratio: 1 / 1;
}
.nbp-item img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--nbp-transition);
    backface-visibility: hidden;
}
.nbp-item:hover img,
.nbp-item:focus img {
    transform: scale(1.05);
}
.nbp-item:focus {
    outline: 3px solid var(--nbp-accent);
    outline-offset: 2px;
}

/* ── Hover Overlay ── */
.nbp-overlay {
    position: absolute;
    inset: 0;
    background: rgba(91, 118, 153, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--nbp-transition);
}
.nbp-item:hover .nbp-overlay,
.nbp-item:focus .nbp-overlay { opacity: 1; }
.nbp-zoom-icon {
    font-size: 28px;
    filter: drop-shadow(0 1px 3px rgba(0,0,0,.4));
}

/* ── Lightbox ── */
.nbp-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.92);
    z-index: 999999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 16px;
}
.nbp-lightbox.is-open { display: flex; }

.nbp-lb-inner {
    max-width: min(90vw, 1100px);
    text-align: center;
    position: relative;
}
.nbp-lb-img {
    max-width: 100%;
    max-height: 82vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 8px 40px rgba(0,0,0,.6);
}
.nbp-lb-caption {
    color: rgba(255,255,255,.75);
    font-size: 14px;
    margin-top: 10px;
    min-height: 20px;
}

.nbp-lb-close,
.nbp-lb-prev,
.nbp-lb-next {
    position: fixed;
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 36px;
    line-height: 1;
    padding: 8px;
    transition: color .2s, transform .2s;
    z-index: 10;
    -webkit-tap-highlight-color: transparent;
}
.nbp-lb-close { top: 14px; right: 18px; font-size: 42px; }
.nbp-lb-prev  { left: 12px; top: 50%; transform: translateY(-50%); font-size: 52px; }
.nbp-lb-next  { right: 12px; top: 50%; transform: translateY(-50%); font-size: 52px; }
.nbp-lb-close:hover { color: var(--nbp-accent); transform: scale(1.15); }
.nbp-lb-prev:hover  { color: var(--nbp-accent); transform: translateY(-50%) scale(1.1); }
.nbp-lb-next:hover  { color: var(--nbp-accent); transform: translateY(-50%) scale(1.1); }

/* ── Load More ── */
.nbp-item-hidden {
    display: none;
}

.nbp-loadmore-wrap {
    text-align: center;
    margin-top: 24px;
}

.nbp-loadmore-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--nbp-accent);
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 12px 32px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 0.02em;
    transition: background var(--nbp-transition), transform var(--nbp-transition), box-shadow var(--nbp-transition);
    box-shadow: 0 2px 8px rgba(184, 116, 86, 0.30);
}
.nbp-loadmore-btn:hover {
    background: #9e6040;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(184, 116, 86, 0.40);
}
.nbp-loadmore-btn:active { transform: translateY(0); }
.nbp-loadmore-btn.is-loading { opacity: .7; pointer-events: none; }

.nbp-remaining {
    font-size: 13px;
    font-weight: 400;
    opacity: .85;
}

/* reveal animation */
@keyframes nbp-fade-in {
    from { opacity: 0; transform: scale(.96); }
    to   { opacity: 1; transform: scale(1); }
}
.nbp-item-reveal {
    animation: nbp-fade-in .25s ease both;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
    .nbp-layout-grid,
    .nbp-layout-auto,
    .nbp-layout-featured .nbp-grid-wrap {
        grid-template-columns: repeat(min(var(--nbp-cols), 3), 1fr);
    }
    .nbp-layout-masonry .nbp-masonry-wrap {
        columns: min(var(--nbp-cols), 3);
    }
}

@media (max-width: 768px) {
    .nbp-layout-grid,
    .nbp-layout-auto,
    .nbp-layout-featured .nbp-grid-wrap {
        grid-template-columns: repeat(2, 1fr);
    }
    .nbp-layout-masonry .nbp-masonry-wrap { columns: 2; }
    .nbp-layout-featured .nbp-featured-hero .nbp-item img { height: 260px; }
    .nbp-lb-prev { left: 6px; font-size: 38px; }
    .nbp-lb-next { right: 6px; font-size: 38px; }
}

@media (max-width: 480px) {
    .nbp-layout-grid,
    .nbp-layout-auto,
    .nbp-layout-featured .nbp-grid-wrap {
        grid-template-columns: repeat(2, 1fr);
    }
    .nbp-layout-masonry .nbp-masonry-wrap { columns: 1; }
    .nbp-layout-featured .nbp-featured-hero .nbp-item img { height: 200px; }
    .nbp-lb-close { top: 8px; right: 10px; font-size: 32px; }
    .nbp-lb-prev, .nbp-lb-next { font-size: 30px; }
    .nbp-lb-img { max-height: 72vh; }
}