/* ═══════════════════════════════════════════════════════════════
   KBK Impact — Gallery Page Styles
   ═══════════════════════════════════════════════════════════════ */

/* ─── Filters ──────────────────────────────────────────────── */

.gal-filteri-sek {
    padding: 2rem 0 0;
    border-bottom: 1px solid var(--border);
}

.gal-filteri {
    display: flex;
    gap: 0;
    overflow-x: auto;
}

.gal-filter {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--fg-dim);
    font-family: 'Barlow', sans-serif;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 0.9rem 1.8rem;
    cursor: pointer;
    transition: color 0.25s ease, border-color 0.25s ease;
    white-space: nowrap;
}

.gal-filter:hover { color: var(--fg); }

.gal-filter.aktivan {
    color: var(--fg);
    border-bottom-color: var(--accent);
}

/* ─── Masonry Grid ─────────────────────────────────────────── */

.gal-sek { padding: 2.5rem 0 6rem; }

.gal-masonry {
    columns: 4;
    column-gap: 6px;
}

.gal-item {
    break-inside: avoid;
    margin-bottom: 6px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg2);
    border-radius: var(--radius);
}

/* Variable aspect ratios for visual rhythm */
.gal-item:nth-child(4n+1) img { aspect-ratio: 4/5; }
.gal-item:nth-child(4n+2) img { aspect-ratio: 1/1; }
.gal-item:nth-child(4n+3) img { aspect-ratio: 3/4; }
.gal-item:nth-child(4n+4) img { aspect-ratio: 4/3; }

.gal-item img {
    width: 100%;
    display: block;
    object-fit: cover;
    border-radius: var(--radius);
    transition: transform 0.5s var(--ease-out-expo), filter 0.4s ease;
    filter: brightness(0.85) grayscale(10%);
}

.gal-item:hover img {
    transform: scale(1.05);
    filter: brightness(0.6) grayscale(0%);
}

/* Hover overlay */
.gal-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: flex-end;
    padding: 1.2rem;
    pointer-events: none;
    background: linear-gradient(to top, rgba(255, 77, 0, 0.15) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.35s ease;
    border-radius: var(--radius);
}

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

.gal-overlay span {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: rgba(255, 255, 255, 0.92);
    transform: translateY(6px);
    transition: transform 0.35s var(--ease-out-expo);
}

.gal-item:hover .gal-overlay span { transform: translateY(0); }

/* Hidden items (filtered) */
.gal-item.skriveno {
    display: none;
}

/* ─── Lightbox ─────────────────────────────────────────────── */

.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 500;
    background: rgba(0, 0, 0, 0.97);
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.lightbox.aktivan { display: flex; }

.lb-slika-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    max-width: 88vw;
}

#lb-img {
    max-width: 88vw;
    max-height: 82vh;
    object-fit: contain;
    display: block;
    user-select: none;
    border-radius: 4px;
}

.lb-caption {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--fg-dim);
    text-align: center;
}

.lb-zatvori {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: 1px solid var(--border);
    color: var(--fg);
    font-size: 1.4rem;
    width: 44px;
    height: 44px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s, border-color 0.2s;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.lb-zatvori:hover { opacity: 1; border-color: var(--fg); }

.lb-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: 1px solid var(--border);
    color: var(--fg);
    font-size: 1.5rem;
    width: 48px;
    height: 48px;
    cursor: pointer;
    opacity: 0.4;
    transition: opacity 0.2s, border-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.lb-nav:hover { opacity: 1; border-color: var(--fg); }
#lb-lijevo { left: 1.5rem; }
#lb-desno { right: 1.5rem; }

.lb-brojac {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--fg-dim);
}

/* ─── Responsive ──────────────────────────────────────────── */

@media (max-width: 900px) {
    .gal-masonry { columns: 3; }
}

@media (max-width: 640px) {
    .gal-masonry { columns: 2; column-gap: 4px; }
    .gal-masonry .gal-item { margin-bottom: 4px; }
    .lb-nav { width: 40px; height: 40px; font-size: 1.2rem; }
    #lb-lijevo { left: 0.5rem; }
    #lb-desno { right: 0.5rem; }
}