.sb-gallery-section,
.sb-lightbox {
    --sb-bg: #0a0a0a;
    --sb-fg: #e8e4df;
    --sb-fg-dim: #6b6560;
    --sb-accent: #e8793a;
    --sb-mono: monospace;
    --sb-sans: 'Inter', sans-serif;
    --sb-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --sb-ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

.sb-gallery-section {
    background: var(--sb-bg);
    padding: 0 clamp(1rem, 4vw, 5rem);
    padding-bottom: 6rem;
    position: relative;
}

.sb-gallery-section::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-size: 128px;
}

.sb-gallery-section > * {
    position: relative;
    z-index: 2;
}

.sb-gallery-counter {
    font-family: var(--sb-mono);
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--sb-fg-dim);
    padding: 3rem 0 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sb-gallery-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: clamp(0.75rem, 1.5vw, 1.5rem);
}

.sb-gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 2px;
    cursor: pointer;
    opacity: 0;
    transform: translateY(60px) scale(0.94);
    transition: opacity 0.9s var(--sb-ease-out), transform 0.9s var(--sb-ease-out);
}

.sb-gallery-item.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.sb-gallery-item:nth-child(3n+2) { transition-delay: 0.1s; }
.sb-gallery-item:nth-child(3n+3) { transition-delay: 0.2s; }

.sb-span-12 { grid-column: span 12; }
.sb-span-8  { grid-column: span 8;  }
.sb-span-7  { grid-column: span 7;  }
.sb-span-6  { grid-column: span 6;  }
.sb-span-5  { grid-column: span 5;  }
.sb-span-4  { grid-column: span 4;  }
.sb-span-3  { grid-column: span 3;  }

.sb-wide     { aspect-ratio: 16 / 9;   }
.sb-tall     { aspect-ratio: 3 / 4;    }
.sb-square   { aspect-ratio: 1;        }
.sb-cinema   { aspect-ratio: 2.35 / 1; }
.sb-standard { aspect-ratio: 4 / 3;    }

.sb-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: grayscale(0.6) brightness(0.85);
    transition: filter 0.6s var(--sb-ease-smooth), transform 0.6s var(--sb-ease-smooth);
}

.sb-gallery-item:hover img {
    filter: grayscale(0) brightness(1);
    transform: scale(1.04);
}

.sb-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 10, 10, 0.8) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s var(--sb-ease-smooth);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: clamp(0.8rem, 2vw, 1.5rem);
    pointer-events: none;
}

.sb-gallery-item:hover .sb-item-overlay {
    opacity: 1;
}

.sb-item-title {
    font-family: var(--sb-mono);
    font-size: clamp(0.6rem, 0.8vw, 0.75rem);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--sb-fg);
}

.sb-item-meta {
    font-family: var(--sb-sans);
    font-size: 0.7rem;
    color: var(--sb-fg-dim);
    margin-top: 0.3rem;
}

/* ── Lightbox ── */
.sb-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: rgba(10, 10, 10, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s var(--sb-ease-smooth);
}

.sb-lightbox.is-open {
    opacity: 1;
    pointer-events: all;
}

.sb-lightbox img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 2px;
    transform: scale(0.92);
    transition: transform 0.5s var(--sb-ease-out);
}

.sb-lightbox.is-open img {
    transform: scale(1);
}

.sb-lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-family: var(--sb-mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sb-fg-dim);
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.6rem 1.2rem;
    cursor: pointer;
    transition: color 0.3s, border-color 0.3s;
}

.sb-lightbox-close:hover {
    color: var(--sb-fg);
    border-color: var(--sb-accent);
}

.sb-lightbox-info {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    font-family: var(--sb-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: var(--sb-fg-dim);
}

.sb-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--sb-fg-dim);
    background: none;
    border: none;
    cursor: pointer;
    padding: 1rem;
    transition: color 0.3s;
}

.sb-lightbox-nav:hover { color: var(--sb-fg); }
.sb-lb-prev { left: 1rem; }
.sb-lb-next { right: 1rem; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .sb-gallery-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    .sb-span-12,
    .sb-span-8,
    .sb-span-7,
    .sb-span-6  { grid-column: span 6; }
    .sb-span-5,
    .sb-span-4,
    .sb-span-3  { grid-column: span 3; }
    .sb-cinema  { aspect-ratio: 16 / 9; }
    .sb-lightbox-nav { font-size: 1.2rem; padding: 0.6rem; }
    .sb-lb-prev { left: 0.5rem; }
    .sb-lb-next { right: 0.5rem; }
}

@media (max-width: 480px) {
    .sb-gallery-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    .sb-span-12,
    .sb-span-8,
    .sb-span-7,
    .sb-span-6,
    .sb-span-5,
    .sb-span-4,
    .sb-span-3  { grid-column: span 1; }
    .sb-gallery-item img {
        filter: grayscale(0.3) brightness(0.9);
    }
    .sb-item-overlay {
        opacity: 1;
        background: linear-gradient(to top, rgba(10, 10, 10, 0.7) 0%, transparent 40%);
    }
}