.page-header {
            padding: 8rem 0 4rem;
            background: linear-gradient(135deg, var(--blue-50) 0%, var(--white) 100%);
            text-align: center;
        }

        .filter-section {
            position: sticky;
            top: 5rem;
            background: var(--white);
            padding: 2rem 0;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            z-index: 100;
        }

        .filter-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.75rem;
        }

        .filter-btn {
            padding: 0.75rem 1.5rem;
            border: 2px solid var(--blue-800);
            background: var(--white);
            color: var(--blue-800);
            border-radius: 9999px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 500;
        }

        .filter-btn.active,
        .filter-btn:hover {
            background: var(--blue-800);
            color: var(--white);
            box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
            transform: translateY(-2px);
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); 
            gap: 1.5rem; 
            padding: 4rem 0; 
        }

        .gallery-item {
            position: relative;
            overflow: hidden;
            border-radius: 0.75rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            cursor: pointer;
            transition: opacity 0.3s ease, transform 0.3s ease;
            opacity: 1;
            transform: scale(1);
        }

        .gallery-item img {
            width: 100%;
            height: 250px; /* Restored previous height */
            object-fit: cover;
            border-radius: 0.75rem;
            transition: transform 0.5s ease;
            display: block;
        }

        .gallery-item:hover img {
            transform: scale(1.1);
        }

        .gallery-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 50%, transparent 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 1.5rem;
            border-radius: 0.75rem;
        }

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

        .gallery-badge {
            display: inline-block;
            padding: 0.35rem 0.875rem;
            background: linear-gradient(135deg, var(--blue-800) 0%, var(--blue-600) 100%);
            color: var(--white);
            border-radius: 0.25rem;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            width: fit-content;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .gallery-title {
            color: var(--white);
            font-size: 1.125rem;
            font-weight: 700;
            margin: 0;
        }

        
        .lightbox {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.95);
            z-index: 2000;
            align-items: center;
            justify-content: center;
            padding: 2rem;
            backdrop-filter: blur(5px);
        }

        .lightbox.active {
            display: flex; 
        }

        .lightbox-content {
            max-width: 80rem;
            width: 100%;
            text-align: center;
            animation: slideUp 0.3s ease;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .lightbox-image {
            max-width: 90%;
            max-height: 80%;
            border-radius: 0.75rem;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            object-fit: contain;
        }

        .lightbox-info {
            margin-top: 1.5rem;
        }

        .lightbox-close {
            position: absolute;
            top: 1rem;
            right: 1rem;
            background: rgba(255, 255, 255, 0.1);
            border: 2px solid var(--white);
            color: var(--white);
            font-size: 2rem;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 3rem;
            height: 3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }

        .lightbox-close:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: scale(1.1);
        }

        @media (max-width: 768px) {
            .lightbox {
                padding: 1rem;
            }

            .lightbox-image {
                max-height: 60vh;
            }

            .lightbox-close {
                top: 1rem;
                right: 1rem;
                font-size: 1.75rem;
                width: 2.75rem;
                height: 2.75rem;
            }

            
            .gallery-grid {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
                gap: 1rem;
            }
        }

        @media (max-width: 480px) {
            .gallery-grid {
                grid-template-columns: 1fr;
                gap: 0.5rem;
            }
            .gallery-item img {
                height: auto;
            }
        }

        
        .gallery-item.hidden {
            display: none;
            opacity: 0;
            transform: scale(0.8);
            transition: opacity 0.3s ease, transform 0.3s ease;
        }

        .gallery-item.visible {
            display: block;
            opacity: 1;
            transform: scale(1);
            transition: opacity 0.3s ease, transform 0.3s ease;
        }

        
        .gallery-item.hidden:hover {
            transform: none;
            box-shadow: none;
        }

        /* Enhanced gallery interactions */
        .gallery-item {
            will-change: transform, opacity;
        }

        .gallery-item::after {
            content: '\f002'; /* fa-search as fallback (fontawesome) */
            font-family: 'Font Awesome 5 Free', 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%) scale(0.8);
            color: rgba(255,255,255,0.9);
            font-size: 1.5rem;
            opacity: 0;
            transition: transform 0.45s cubic-bezier(.2,.9,.2,1), opacity 0.35s ease;
            pointer-events: none;
        }

        .gallery-item:hover::after {
            opacity: 1;
            transform: translate(-50%, -50%) scale(1.05) rotate(-6deg);
        }

        .gallery-overlay .gallery-badge,
        .gallery-overlay .gallery-title {
            transform: translateY(8px);
            opacity: 0;
            transition: transform 0.45s cubic-bezier(.2,.9,.2,1), opacity 0.35s ease;
        }

        .gallery-item:hover .gallery-overlay .gallery-badge,
        .gallery-item:hover .gallery-overlay .gallery-title {
            transform: translateY(0);
            opacity: 1;
        }

        /* Decorative tracking text behind header */
        .page-header {
            position: relative;
        }
        .page-header::before {
            content: 'MEMORIES';
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            top: -2.5rem;
            font-size: 3.25rem;
            color: rgba(30,58,138,0.06);
            letter-spacing: 0.75rem;
            font-weight: 800;
            pointer-events: none;
            user-select: none;
        }

        /* Bold colored headline */
        .page-header h1 {
            color: var(--blue-900);
            font-weight: 800;
        }

        /* Reveal animation when elements enter viewport */
        .gallery-item {
            opacity: 0;
            transform: translateY(18px) scale(0.995);
            transition: opacity 0.6s ease, transform 0.6s cubic-bezier(.2,.9,.2,1);
        }
        .gallery-item.animate-in {
            opacity: 1;
            transform: translateY(0) scale(1);
        }

        .gallery-overlay {
            background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.45) 60%, rgba(0,0,0,0.85) 100%);
        }