/* ============================================================
               ROOT DESIGN SYSTEM (Premium NGO Palette)
               ============================================================ */
        :root {
            --color-primary-dark: #064e3b;
            --color-primary-base: #0b6623;
            --color-accent-gold: #f59e0b;
            --color-accent-blue: #2563eb;
            --color-white: #ffffff;
            --color-off-white: #f8fafc;
            --color-slate-light: #e2e8f0;
            --text-primary-dark: #0f172a;
            --text-secondary-muted: #475569;
            --text-disabled: #94a3b8;
            --border-radius-pill: 50px;
            --border-radius-card: 16px;
            --border-radius-sm: 8px;
            --transition-premium: cubic-bezier(0.4, 0, 0.2, 1);
            --fs-h1: 34px;
            --fs-h2: 28px;
            --fs-h3: 24px;
            --fs-h4: 22px;
            --fs-h5: 18px;
            --fs-body: 14px;
            --fs-small: 12px;
        }

        /* ============================================================
               RESET & BASE
               ============================================================ */
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            font-size: var(--fs-body);
            color: var(--text-primary-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            background: var(--color-white);
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        img {
            max-width: 100%;
            display: block;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 5%;
        }

        .section-padding {
            padding: 96px 0;
        }

        .section-padding-sm {
            padding: 64px 0;
        }

        .text-center {
            text-align: center;
        }

        /* ============================================================
               TYPOGRAPHY
               ============================================================ */
        h1 {
            font-size: var(--fs-h1);
            font-weight: 700;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: var(--text-primary-dark);
        }

        h2 {
            font-size: var(--fs-h2);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.015em;
            color: var(--text-primary-dark);
        }

        h3 {
            font-size: var(--fs-h3);
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-primary-dark);
        }

        p {
            font-size: var(--fs-body);
            color: var(--text-secondary-muted);
            line-height: 1.7;
        }

        .text-small {
            font-size: var(--fs-small);
            letter-spacing: 0.04em;
            color: var(--text-disabled);
        }

        .text-uppercase {
            text-transform: uppercase;
            letter-spacing: 0.08em;
        }

        .tag {
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--color-accent-blue);
            display: inline-block;
            margin-bottom: 8px;
        }

        .tag-green {
            color: var(--color-primary-base);
        }

        /* ============================================================
               BUTTONS
               ============================================================ */
        .btn-cta {
            display: inline-block;
            background: var(--color-accent-gold);
            color: var(--color-white);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.9rem 2.4rem;
            border-radius: var(--border-radius-pill);
            border: none;
            cursor: pointer;
            transition: transform 0.3s var(--transition-premium), box-shadow 0.3s var(--transition-premium);
            text-align: center;
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(245, 158, 11, 0.25);
        }

        .btn-primary-pill {
            display: inline-block;
            background: var(--color-primary-dark);
            color: var(--color-white);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.9rem 2.6rem;
            border-radius: var(--border-radius-pill);
            border: none;
            cursor: pointer;
            transition: background 0.3s var(--transition-premium), transform 0.3s var(--transition-premium);
            text-align: center;
        }

        .btn-primary-pill:hover {
            background: var(--color-primary-base);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(6, 78, 59, 0.2);
        }

      

        /* ============================================================
   GALLERY HERO (Background Image – Premium)
   ============================================================ */
.gallery-hero-bg {
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: 
        linear-gradient(135deg, rgba(6, 78, 59, 0.78) 0%, rgba(15, 23, 42, 0.68) 100%),
        url('https://images.unsplash.com/photo-1523050854058-8df90110c7f1?w=1600&q=80') center/cover no-repeat;
    background-blend-mode: overlay;
    padding: 140px 5% 80px;
    position: relative;
}

/* Subtle animated texture overlay for premium feel */
.gallery-hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 20%, rgba(245, 158, 11, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.gallery-hero-bg .gallery-hero-content {
    max-width: 720px;
    position: relative;
    z-index: 2;
}

.gallery-hero-bg .gallery-hero-content .tag {
    color: var(--color-accent-gold);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    display: block;
    margin-bottom: 12px;
}

.gallery-hero-bg .gallery-hero-content h1 {
    font-size: clamp(40px, 5.5vw, 60px);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--color-white);
    margin-bottom: 12px;
}

.gallery-hero-bg .gallery-hero-content p {
    font-size: clamp(1rem, 1.1vw, 1.15rem);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    max-width: 480px;
}



        /* ============================================================
               MASONRY GALLERY
               ============================================================ */
        .gallery-masonry {
            background: var(--color-white);
            padding-bottom: 96px;
        }

        .masonry-grid {
            column-count: 3;
            column-gap: 24px;
        }

        .masonry-item {
            break-inside: avoid;
            margin-bottom: 24px;
            border-radius: var(--border-radius-sm);
            overflow: hidden;
            cursor: pointer;
            position: relative;
            transition: transform 0.4s var(--transition-premium), box-shadow 0.4s var(--transition-premium);
            background: var(--color-off-white);
        }

        .masonry-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
        }

        .masonry-item img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.6s var(--transition-premium);
        }

        .masonry-item:hover img {
            transform: scale(1.02);
        }

        .masonry-item .overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 40px 20px 16px;
            background: linear-gradient(0deg, rgba(6, 78, 59, 0.6) 0%, transparent 100%);
            color: var(--color-white);
            opacity: 0;
            transition: opacity 0.4s var(--transition-premium);
            pointer-events: none;
        }

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

        .masonry-item .overlay .caption {
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .masonry-item .overlay .caption i {
            margin-right: 6px;
            opacity: 0.7;
        }

        /* ============================================================
               LIGHTBOX MODAL
               ============================================================ */
        .lightbox {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(11, 26, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.5s var(--transition-premium), visibility 0.5s var(--transition-premium);
            padding: 40px 5%;
        }

        .lightbox.open {
            opacity: 1;
            visibility: visible;
        }

        .lightbox-content {
            max-width: 1000px;
            width: 100%;
            position: relative;
            animation: lightboxFade 0.5s var(--transition-premium);
        }

        @keyframes lightboxFade {
            0% {
                transform: scale(0.96);
                opacity: 0;
            }
            100% {
                transform: scale(1);
                opacity: 1;
            }
        }

        .lightbox-content img {
            width: 100%;
            height: auto;
            max-height: 70vh;
            object-fit: contain;
            border-radius: var(--border-radius-sm);
            box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
        }

        .lightbox-content .lb-caption {
            margin-top: 20px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            text-align: center;
            font-weight: 400;
            letter-spacing: 0.02em;
        }

        .lightbox-content .lb-caption strong {
            color: var(--color-white);
            font-weight: 500;
        }

        .lightbox-close {
            position: absolute;
            top: -48px;
            right: 0;
            background: transparent;
            border: none;
            color: rgba(255, 255, 255, 0.6);
            font-size: 28px;
            cursor: pointer;
            transition: color 0.3s var(--transition-premium), transform 0.3s var(--transition-premium);
            padding: 8px;
        }

        .lightbox-close:hover {
            color: var(--color-white);
            transform: rotate(90deg);
        }

        .lightbox-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: rgba(255, 255, 255, 0.6);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            font-size: 18px;
            cursor: pointer;
            transition: all 0.3s var(--transition-premium);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .lightbox-nav:hover {
            background: rgba(255, 255, 255, 0.12);
            color: var(--color-white);
        }

        .lightbox-nav.prev {
            left: -64px;
        }

        .lightbox-nav.next {
            right: -64px;
        }

        @media (max-width: 1024px) {
            .lightbox-nav.prev {
                left: 8px;
            }
            .lightbox-nav.next {
                right: 8px;
            }
            .lightbox-nav {
                width: 40px;
                height: 40px;
                font-size: 14px;
            }
        }


        /* ============================================================
               REVEAL ANIMATIONS
               ============================================================ */
        .reveal {
            opacity: 0;
            transform: translateY(32px);
            transition: opacity 0.8s var(--transition-premium), transform 0.8s var(--transition-premium);
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .reveal-d1 {
            transition-delay: 0.05s;
        }
        .reveal-d2 {
            transition-delay: 0.12s;
        }
        .reveal-d3 {
            transition-delay: 0.20s;
        }
        .reveal-d4 {
            transition-delay: 0.28s;
        }

        /* ============================================================
               RESPONSIVE
               ============================================================ */

        @media (max-width: 1024px) {
            .masonry-grid {
                column-count: 2;
                column-gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2.5rem;
            }
            .lightbox-nav.prev {
                left: 4px;
            }
            .lightbox-nav.next {
                right: 4px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .navbar .logo img {
                height: 30px;
            }

            .gallery-hero {
                padding: 120px 0 32px;
            }
            .gallery-hero h1 {
                font-size: 30px;
            }

            .masonry-grid {
                column-count: 1;
                column-gap: 16px;
            }

            .masonry-item {
                margin-bottom: 16px;
            }

            .masonry-item .overlay {
                padding: 30px 16px 12px;
            }
            .masonry-item .overlay .caption {
                font-size: 12px;
            }

            .lightbox-content img {
                max-height: 50vh;
            }
            .lightbox-close {
                top: -40px;
                font-size: 24px;
            }
            .lightbox-nav {
                width: 36px;
                height: 36px;
                font-size: 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.5rem;
            }
            .container {
                padding: 0 4%;
            }
        }

        @media (max-width: 480px) {
            .gallery-hero h1 {
                font-size: 26px;
            }
            .lightbox-content img {
                max-height: 40vh;
            }
            .lightbox-nav {
                width: 32px;
                height: 32px;
                font-size: 10px;
            }
        }
        /* ============================================================
   GALLERY HERO (Optimized)
   ============================================================ */
.gallery-hero {
    padding: 160px 0 56px;
    background: var(--color-white);
}

.gallery-hero .container {
    max-width: 1000px;
}

.gallery-hero .tag {
    color: var(--color-primary-base);
}

.gallery-hero h1 {
    font-size: clamp(34px, 5vw, 52px);
    max-width: 720px;
    margin-bottom: 12px;
    letter-spacing: -0.025em;
}

.gallery-hero p {
    max-width: 600px;
    font-size: 1.05rem;
    color: var(--text-secondary-muted);
}

/* ============================================================
   GALLERY INTRO
   ============================================================ */
.gallery-intro {
    background: var(--color-off-white);
}

.gallery-intro-content {
    max-width: 740px;
    margin: 0 auto;
    text-align: center;
}

.gallery-intro-content .tag {
    color: var(--color-primary-base);
}

.gallery-intro-content h2 {
    font-size: clamp(28px, 3.5vw, 36px);
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 12px;
    color: var(--text-primary-dark);
}

.gallery-intro-content p {
    font-size: 1rem;
    color: var(--text-secondary-muted);
    line-height: 1.7;
}

/* ============================================================
   GALLERY FILTER
   ============================================================ */
.gallery-filter {
    background: var(--color-white);
    padding: 32px 0;
    border-bottom: 1px solid var(--color-slate-light);
}

.filter-scroll {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 8px 20px;
    border: 1px solid var(--color-slate-light);
    border-radius: var(--border-radius-pill);
    background: transparent;
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary-muted);
    cursor: pointer;
    transition: all 0.3s var(--transition-premium);
}

.filter-btn:hover {
    border-color: var(--color-primary-base);
    color: var(--text-primary-dark);
}

.filter-btn.active {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-white);
}

/* ============================================================
   MASONRY GALLERY
   ============================================================ */
.gallery-masonry {
    background: var(--color-white);
}

.masonry-grid {
    column-count: 3;
    column-gap: 24px;
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: 24px;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    cursor: pointer;
    position: relative;
    transition: transform 0.4s var(--transition-premium), box-shadow 0.4s var(--transition-premium);
    background: var(--color-off-white);
}

.masonry-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.masonry-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s var(--transition-premium);
    background: var(--color-slate-light);
}

.masonry-item:hover img {
    transform: scale(1.02);
}

.masonry-item .overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px 20px 16px;
    background: linear-gradient(0deg, rgba(6, 78, 59, 0.6) 0%, transparent 100%);
    color: var(--color-white);
    opacity: 0;
    transition: opacity 0.4s var(--transition-premium);
    pointer-events: none;
}

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

.masonry-item .overlay .caption {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.masonry-item .overlay .caption i {
    margin-right: 6px;
    opacity: 0.7;
}

/* ============================================================
   IMPACT STATS
   ============================================================ */
.impact-stats {
    background: var(--color-off-white);
}

.impact-stats .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.impact-stats .stat-item .stat-number {
    font-size: clamp(36px, 4vw, 48px);
    font-weight: 800;
    color: var(--color-primary-dark);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.impact-stats .stat-item .stat-label {
    font-size: var(--fs-small);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary-muted);
    margin-top: 0.4rem;
    font-weight: 600;
}

/* ============================================================
   GALLERY CTA
   ============================================================ */
.gallery-cta {
    background: var(--color-white);
    text-align: center;
}

.gallery-cta h2 {
    font-size: clamp(28px, 3.5vw, 36px);
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 12px;
    color: var(--text-primary-dark);
}

.gallery-cta p {
    font-size: 1rem;
    color: var(--text-secondary-muted);
    max-width: 520px;
    margin: 0 auto 28px;
    line-height: 1.7;
}

.gallery-cta .cta-links {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================================
   LIGHTBOX MODAL (Existing - keep as is)
   ============================================================ */
/* ... lightbox styles remain unchanged ... */

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .masonry-grid {
        column-count: 2;
        column-gap: 20px;
    }

    .impact-stats .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .gallery-hero {
        padding: 120px 0 32px;
    }

    .gallery-hero h1 {
        font-size: 30px;
    }

    .masonry-grid {
        column-count: 1;
        column-gap: 16px;
    }

    .masonry-item {
        margin-bottom: 16px;
    }

    .masonry-item .overlay {
        padding: 30px 16px 12px;
    }

    .masonry-item .overlay .caption {
        font-size: 12px;
    }

    .gallery-filter .filter-scroll {
        flex-wrap: nowrap;
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
    }

    .gallery-filter .filter-scroll::-webkit-scrollbar {
        height: 2px;
    }

    .gallery-filter .filter-scroll::-webkit-scrollbar-thumb {
        background: var(--color-slate-light);
        border-radius: 4px;
    }

    .filter-btn {
        white-space: nowrap;
        font-size: 0.75rem;
        padding: 6px 14px;
    }

    .impact-stats .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .gallery-cta .cta-links {
        flex-direction: column;
        align-items: center;
    }

    .gallery-cta .cta-links .btn-primary-pill,
    .gallery-cta .cta-links .btn-outline-dark {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .gallery-hero h1 {
        font-size: 26px;
    }

    .masonry-item .overlay .caption {
        font-size: 11px;
    }

    .impact-stats .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .gallery-hero-bg {
        min-height: 60vh;
        padding: 120px 5% 48px;
    }

    .gallery-hero-bg .gallery-hero-content h1 {
        font-size: 32px;
    }

    .gallery-hero-bg .gallery-hero-content p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .gallery-hero-bg .gallery-hero-content h1 {
        font-size: 28px;
    }
}