/*!
 * rpk-gallery.css - สไตล์ของแกลเลอรีภาพ + lightbox ที่เขียนขึ้นใช้แทน unitegallery
 */

.rpk-gal {
    --rpk-gap: 8px;
    --rpk-min: 170px;
    --rpk-radius: 8px;
    --rpk-accent: #EFBB20;
    display: flex;
    flex-wrap: wrap;
    gap: var(--rpk-gap);
    margin: 0;
    padding: 0;
}

.rpk-gal--grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--rpk-min), 1fr));
}
.rpk-gal--grid .rpk-gal__cell { aspect-ratio: 4/3; }

.rpk-gal__cell {
    position: relative;
    overflow: hidden;
    border-radius: var(--rpk-radius);
    background: #eee;
}

.rpk-gal__btn {
    display: block;
    width: 100%;
    height: 100%;
    margin: 0; padding: 0;
    border: 0;
    background: none;
    cursor: zoom-in;
    overflow: hidden;
    border-radius: inherit;
}
.rpk-gal__btn:focus-visible {
    outline: 3px solid var(--rpk-accent);
    outline-offset: -3px;
}

.rpk-gal__img {
    display: block;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    transition: transform .4s ease, filter .3s ease;
}
.rpk-gal__btn:hover .rpk-gal__img,
.rpk-gal__btn:focus-visible .rpk-gal__img {
    transform: scale(1.06);
    filter: brightness(.82);
}

.rpk-gal__title {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 20px 8px 7px;
    font-size: 13px;
    line-height: 1.3;
    color: #fff;
    text-align: left;
    background: linear-gradient(to top, rgba(0, 0, 0, .78), rgba(0, 0, 0, 0));
    opacity: 0;
    transition: opacity .3s ease;
    pointer-events: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.rpk-gal__btn:hover .rpk-gal__title,
.rpk-gal__btn:focus-visible .rpk-gal__title { opacity: 1; }

/* =========================================================
   Lightbox
   ========================================================= */
html.rpk-lb-open { overflow: hidden; }

.rpk-lb {
    position: fixed;
    inset: 0;
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 10, 12, .97);
    animation: rpk-lb-in .2s ease;
}
.rpk-lb[hidden] { display: none; }

@keyframes rpk-lb-in { from { opacity: 0; } to { opacity: 1; } }

.rpk-lb__stage {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    padding: 56px 64px 86px;
    box-sizing: border-box;
}

.rpk-lb__img {
    max-width: 100%;
    max-height: 100%;
    width: auto; height: auto;
    border-radius: 4px;
    box-shadow: 0 10px 44px rgba(0, 0, 0, .55);
    opacity: 0;
    transition: opacity .25s ease;
}
.rpk-lb__img.is-ready { opacity: 1; }

.rpk-lb__spinner {
    position: absolute;
    top: 50%; left: 50%;
    width: 38px; height: 38px;
    margin: -19px 0 0 -19px;
    border: 3px solid rgba(255, 255, 255, .25);
    border-top-color: #fff;
    border-radius: 50%;
    opacity: 0;
    animation: rpk-spin .8s linear infinite;
}
.rpk-lb.is-loading .rpk-lb__spinner { opacity: 1; }
@keyframes rpk-spin { to { transform: rotate(360deg); } }

.rpk-lb__caption {
    position: absolute;
    left: 0; right: 0; bottom: 18px;
    padding: 0 70px;
    font-size: 16px;
    line-height: 1.4;
    color: #f2f2f2;
    text-align: center;
}

.rpk-lb__counter {
    position: absolute;
    top: 18px; left: 22px;
    font-size: 14px;
    color: #d7d7d7;
    letter-spacing: .5px;
}

.rpk-lb__btn {
    position: absolute;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, .12);
    color: #fff;
    cursor: pointer;
    transition: background .2s ease;
}
.rpk-lb__btn:hover { background: rgba(255, 255, 255, .28); }
.rpk-lb__btn:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }

.rpk-lb__btn--close {
    top: 12px; right: 14px;
    width: 42px; height: 42px;
    font-size: 30px;
    line-height: 38px;
}

.rpk-lb__btn--prev,
.rpk-lb__btn--next {
    top: 50%;
    width: 48px; height: 48px;
    margin-top: -24px;
}
.rpk-lb__btn--prev { left: 14px; }
.rpk-lb__btn--next { right: 14px; }

.rpk-lb__btn--prev span,
.rpk-lb__btn--next span {
    display: block;
    width: 13px; height: 13px;
    margin: 0 auto;
    border-top: 2px solid #fff;
    border-right: 2px solid #fff;
}
.rpk-lb__btn--prev span { transform: translateX(3px) rotate(-135deg); }
.rpk-lb__btn--next span { transform: translateX(-3px) rotate(45deg); }

@media (max-width: 575px) {
    .rpk-lb__stage { padding: 50px 10px 74px; }
    .rpk-lb__caption { padding: 0 16px; font-size: 14px; bottom: 14px; }
    .rpk-lb__btn--prev, .rpk-lb__btn--next { width: 40px; height: 40px; margin-top: -20px; }
    .rpk-lb__btn--prev { left: 6px; }
    .rpk-lb__btn--next { right: 6px; }
}

@media (prefers-reduced-motion: reduce) {
    .rpk-lb { animation: none; }
    .rpk-gal__img { transition: none; }
    .rpk-lb__spinner { animation-duration: 2s; }
}