/* ===== PAGE BANNER ===== */
.gallery-banner {
    background: url('../images/carousel3.webp') center center / cover no-repeat;
}

.page-banner {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,61,107,0.35), rgba(26,107,191,0.25));
}

.banner-content {
    position: relative;
    z-index: 2;
    color: #fff;
    padding: 0 20px;
}

.banner-content h1 { font-size: 52px; font-weight: 800; margin-bottom: 14px; }
.banner-content p  { font-size: 17px; opacity: 0.9; max-width: 600px; margin: 0 auto 20px; }

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 14px;
}
.breadcrumb a    { color: #f9c74f; font-weight: 600; }
.breadcrumb i    { font-size: 11px; opacity: 0.7; }
.breadcrumb span { opacity: 0.85; }

/* ===== GALLERY SECTION ===== */
.gallery-section {
    padding: 80px 0 90px;
    background: #fff;
    position: relative;
    overflow: hidden;
}

/* ===== FILTER TABS ===== */
.gallery-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 50px;
}

.gallery-tab {
    background: #f0f6ff;
    border: 2px solid #d0e8ff;
    color: #0a3d6b;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 26px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Poppins', sans-serif;
}

.gallery-tab:hover,
.gallery-tab.active {
    background: linear-gradient(135deg, #0a3d6b, #1a6bbf);
    color: #fff;
    border-color: transparent;
}

/* ===== MASONRY GRID ===== */
.gallery-masonry {
    columns: 4;
    column-gap: 16px;
}

.gal-item {
    break-inside: avoid;
    margin-bottom: 16px;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.gal-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    image-rendering: -webkit-optimize-contrast;
}

.gal-item.tall img  { height: 340px; }
.gal-item.wide img  { height: 260px; }

.gal-item:hover img { transform: scale(1.04); }

.gal-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10,61,107,0.75), rgba(10,61,107,0.2));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    opacity: 0;
    transition: opacity 0.3s;
}

.gal-item:hover .gal-overlay { opacity: 1; }

.gal-overlay i {
    font-size: 28px;
    color: #fff;
}

.gal-overlay span {
    font-size: 14px;
    font-weight: 600;
    color: #f9c74f;
    letter-spacing: 0.5px;
}

/* hidden filter */
.gal-item.hidden { display: none; }

/* ===== VIDEO CARDS ===== */
.gal-video video {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
    will-change: transform;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.gal-video.tall video { height: 340px; }
.gal-video.wide video { height: 260px; }
.gal-video:hover video { transform: scale(1.04); }

.gal-video .gal-overlay i { font-size: 42px; }

/* ===== LIGHTBOX VIDEO ===== */
.lightbox-img-wrap video {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 12px;
    display: block;
    outline: none;
}

/* ===== LIGHTBOX ===== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
}

.lightbox.active,
#home-lightbox.active { display: flex; }

.lightbox-img-wrap {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    text-align: center;
}

.lightbox-img-wrap img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 12px;
    object-fit: contain;
    display: block;
}

#lightbox-caption {
    display: block;
    color: #f9c74f;
    font-size: 14px;
    font-weight: 600;
    margin-top: 14px;
    letter-spacing: 0.5px;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(255,255,255,0.15);
    border: 2px solid rgba(255,255,255,0.3);
    color: #fff;
    border-radius: 50%;
    width: 46px;
    height: 46px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { background: rgba(255,255,255,0.3); }

.lightbox-close { top: 20px; right: 20px; }
.lightbox-prev  { left: 20px; top: 50%; transform: translateY(-50%); }
.lightbox-next  { right: 20px; top: 50%; transform: translateY(-50%); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) { .gallery-masonry { columns: 3; } }
@media (max-width: 768px)  {
    .gallery-masonry { columns: 2; }
    .page-banner { height: 280px; }
    .banner-content h1 { font-size: 28px; }
}
@media (max-width: 480px)  {
    .gallery-masonry { columns: 1; }
    .gallery-tab { font-size: 13px; padding: 8px 18px; }
}