/* ═══════════════════════════════════════════════════════════════════════════
   World Gold Diamonds — Projects Page Styles
═══════════════════════════════════════════════════════════════════════════ */

[data-anim] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-anim="fade-right"] { transform: translateX(-40px); }
[data-anim="fade-left"]  { transform: translateX(40px); }
[data-anim].anim-visible { opacity: 1; transform: none; }

/* ─── Hero ─────────────────────────────────────────────────────────────────── */
.projects-hero {
    position: relative;
    min-height: 68vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.projects-hero-bg { position: absolute; inset: 0; z-index: 0; }
.projects-hero-img {
    width: 100%; height: 100%;
    object-fit: cover; object-position: center;
    display: block;
    transform: scale(1.05);
    animation: heroZoomPrj 12s ease-out forwards;
}
@keyframes heroZoomPrj { to { transform: scale(1); } }
.projects-hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.42) 0%, rgba(0,0,0,0.75) 55%, rgba(0,0,0,0.95) 100%);
}
.projects-hero-content { position: relative; z-index: 1; padding: 7rem 0 5rem; }
.projects-hero-title {
    font-size: clamp(2rem, 5vw, 3.6rem);
    line-height: 1.18;
    color: var(--white);
    margin-bottom: 1.25rem;
}
.projects-hero-sub {
    font-size: 1.05rem;
    color: rgba(245,245,245,0.82);
    max-width: 580px;
    line-height: 1.8;
    margin-bottom: 2rem;
}
.hero-eyebrow-inner {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 1.25rem;
}
.eyebrow-line { display: inline-block; width: 32px; height: 1px; background: var(--gold); opacity: 0.6; }

/* ─── Filter Bar ───────────────────────────────────────────────────────────── */
.gallery-filter-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 2rem 0 0.5rem;
}
.gallery-filter-btn {
    background: transparent;
    color: var(--white-muted);
    border: 1px solid rgba(201,168,76,0.2);
    border-radius: 2rem;
    padding: 0.45rem 1.25rem;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.gallery-filter-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
}
.gallery-filter-btn.active {
    background: var(--gold);
    color: var(--black);
    border-color: var(--gold);
}

/* count badge */
.filter-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px; height: 18px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    font-size: 0.65rem;
    font-weight: 700;
    margin-left: 4px;
    transition: background var(--transition);
}
.gallery-filter-btn.active .filter-count { background: rgba(0,0,0,0.25); }

/* ─── Gallery Counter ──────────────────────────────────────────────────────── */
.gallery-meta {
    text-align: center;
    padding: 0.75rem 0 1.5rem;
    font-size: 0.8rem;
    color: var(--white-muted);
    letter-spacing: 0.06em;
}
.gallery-meta strong { color: var(--gold); }

/* ─── Masonry Grid ─────────────────────────────────────────────────────────── */
.masonry-grid {
    columns: 4;
    column-gap: 10px;
}
.masonry-item {
    break-inside: avoid;
    margin-bottom: 10px;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    cursor: pointer;
    /* transition for filter hide/show */
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.masonry-item.hidden {
    display: none;
}

/* tall items: every 5th item spans more visually via JS class */
.masonry-item.tall .gallery-img { aspect-ratio: 3/4; }
.masonry-item:not(.tall) .gallery-img { aspect-ratio: 4/3; }

.gallery-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25,0.46,0.45,0.94), filter 0.6s ease;
    filter: brightness(0.88) saturate(0.85);
}
.masonry-item:hover .gallery-img {
    transform: scale(1.07);
    filter: brightness(1.05) saturate(1.15);
}

/* ─── Hover Overlay ────────────────────────────────────────────────────────── */
.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(0,0,0,0.85) 0%,
        rgba(0,0,0,0.35) 50%,
        rgba(0,0,0,0) 100%
    );
    opacity: 0;
    transition: opacity 0.45s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.1rem;
}
.masonry-item:hover .gallery-overlay { opacity: 1; }

.gallery-overlay-top {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    display: flex;
    gap: 0.4rem;
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.4s ease 0.05s, transform 0.4s ease 0.05s;
}
.masonry-item:hover .gallery-overlay-top {
    opacity: 1;
    transform: translateY(0);
}
.gallery-cat-badge {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    border-radius: 2rem;
    background: var(--gold);
    color: var(--black);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.gallery-zoom-btn {
    width: 30px; height: 30px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,0.25);
    color: var(--white);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem;
    transition: background var(--transition);
}
.gallery-zoom-btn:hover { background: var(--gold); color: var(--black); }

.gallery-overlay-bottom {
    transform: translateY(8px);
    opacity: 0;
    transition: opacity 0.4s ease 0.08s, transform 0.4s ease 0.08s;
}
.masonry-item:hover .gallery-overlay-bottom {
    opacity: 1;
    transform: translateY(0);
}
.gallery-item-title {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--white);
    margin: 0 0 2px;
    line-height: 1.3;
}
.gallery-item-sub {
    font-size: 0.72rem;
    color: rgba(245,245,245,0.7);
    letter-spacing: 0.06em;
}

/* ─── Gold shimmer on item border ──────────────────────────────────────────── */
.masonry-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    border: 1px solid transparent;
    transition: border-color 0.4s ease;
    pointer-events: none;
}
.masonry-item:hover::after { border-color: rgba(201,168,76,0.5); }

/* ─── Lightbox ─────────────────────────────────────────────────────────────── */
.lb-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.96);
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}
.lb-backdrop.lb-open {
    opacity: 1;
    pointer-events: all;
}

.lb-inner {
    position: relative;
    max-width: 1100px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.lb-img-wrap {
    position: relative;
    width: 100%;
    max-height: 82vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.lb-img {
    max-width: 100%;
    max-height: 82vh;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: 0 24px 80px rgba(0,0,0,0.8);
    display: block;
    transition: opacity 0.25s ease;
}
.lb-img.lb-loading { opacity: 0; }

.lb-close {
    position: fixed;
    top: 1.25rem;
    right: 1.5rem;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--white);
    font-size: 1.1rem;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    z-index: 9999;
    transition: background var(--transition), color var(--transition);
}
.lb-close:hover { background: var(--gold); color: var(--black); border-color: var(--gold); }

.lb-arrow {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 48px; height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.18);
    color: var(--white);
    font-size: 1.2rem;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    z-index: 9999;
    transition: background var(--transition), color var(--transition), opacity var(--transition);
}
.lb-arrow:hover { background: var(--gold); color: var(--black); border-color: var(--gold); }
.lb-prev { left: 1.25rem; }
.lb-next { right: 1.25rem; }
.lb-arrow.lb-hidden { opacity: 0; pointer-events: none; }

.lb-caption {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    max-width: 900px;
}
.lb-caption-text { flex: 1; }
.lb-caption-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--white);
    margin: 0 0 2px;
}
.lb-caption-cat {
    font-size: 0.72rem;
    color: var(--gold);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.lb-counter {
    font-size: 0.8rem;
    color: var(--white-muted);
    white-space: nowrap;
    letter-spacing: 0.06em;
}

/* thumbnail strip */
.lb-thumbs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    max-width: 100%;
    padding-bottom: 4px;
    scrollbar-width: thin;
    scrollbar-color: var(--gold-dark) transparent;
}
.lb-thumbs::-webkit-scrollbar { height: 3px; }
.lb-thumbs::-webkit-scrollbar-thumb { background: var(--gold-dark); border-radius: 2px; }

.lb-thumb {
    flex-shrink: 0;
    width: 56px; height: 42px;
    border-radius: 4px;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color var(--transition), opacity var(--transition);
    opacity: 0.5;
}
.lb-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.lb-thumb.lb-thumb-active { border-color: var(--gold); opacity: 1; }
.lb-thumb:hover { opacity: 0.85; }

/* ─── No Results ───────────────────────────────────────────────────────────── */
.gallery-empty {
    display: none;
    text-align: center;
    padding: 4rem 1rem;
    color: var(--white-muted);
}
.gallery-empty i { font-size: 2.5rem; color: rgba(201,168,76,0.25); margin-bottom: 1rem; display: block; }
.gallery-empty.visible { display: block; }

/* ─── CTA ──────────────────────────────────────────────────────────────────── */
.prj-cta-section { position: relative; overflow: hidden; padding: 6.5rem 0; }
.prj-cta-bg { position: absolute; inset: 0; z-index: 0; }
.prj-cta-bg img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.18) saturate(0.3); }
.prj-cta-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,10,10,0.72) 0%, rgba(10,10,10,0.92) 100%); }

.btn-whatsapp-prj {
    background: #25d366;
    color: #fff;
    border: 2px solid #25d366;
    font-weight: 600;
    letter-spacing: 0.04em;
    border-radius: var(--radius);
    transition: background var(--transition), color var(--transition);
}
.btn-whatsapp-prj:hover { background: transparent; color: #25d366; }

/* ─── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 1199.98px) { .masonry-grid { columns: 3; } }
@media (max-width: 767.98px)  { .masonry-grid { columns: 2; } .lb-arrow { display: none; } }
@media (max-width: 479.98px)  { .masonry-grid { columns: 1; } }