:root {
            --primary-blue: #0056b3;
            --light-blue: #e3f2fd;
            --text-dark: #333333;
            --white: #ffffff;
        }

        body {
            font-family: 'Poppins', sans-serif;
            background-color: #f8f9fa;
            color: var(--text-dark);
            padding-top: 76px;
        }

        /* --- NAVBAR --- */
        .navbar {
            background-color: var(--white);
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .nav-link { color: var(--text-dark); font-weight: 500; }
        .nav-link:hover { color: var(--primary-blue); }
        .btn-back {
            background-color: var(--light-blue);
            color: var(--primary-blue);
            font-weight: 600;
            border-radius: 30px;
            padding: 8px 25px;
        }
        .btn-back:hover { background-color: var(--primary-blue); color: white; }

        /* --- GALLERY GRID --- */
        .page-header {
            padding: 60px 0 40px 0;
            text-align: center;
            background: linear-gradient(rgba(0,86,179,0.9), rgba(0,86,179,0.7)), url('https://images.unsplash.com/photo-1573164713714-d95e436ab8d6?q=80&w=1920&auto=format&fit=crop');
            background-size: cover;
            background-position: center;
            color: white;
            margin-bottom: 50px;
        }

        .gallery-card {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            height: 250px; /* Fixed height for uniformity */
            transition: all 0.3s ease;
        }
        .logo-img
        {
            height: 100px;
        }

        .gallery-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .gallery-card:hover { transform: translateY(-5px); }
        .gallery-card:hover img { transform: scale(1.1); }

        /* Overlay Effect */
        .overlay {
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(0, 86, 179, 0.6);
            display: flex;
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: opacity 0.3s;
        }
        .gallery-card:hover .overlay { opacity: 1; }
        .overlay i { color: white; font-size: 2rem; }

        /* --- MODAL (Lightbox) --- */
        .modal-body img { width: 100%; height: auto; border-radius: 5px; }
        .modal-content { background: transparent; border: none; }
        .btn-close-white { filter: invert(1); opacity: 1; }

        /* --- FOOTER --- */
        footer { background-color: var(--primary-blue); color: white; padding: 40px 0; margin-top: 80px; text-align: center; }


        /* --- WATERMARK / LABEL STYLES --- */
       .watermark-overlay {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background: rgba(0, 0, 0, 0.65); /* Dark transparent background */
    color: #ffffff;
    padding: 6px 15px;
    border-radius: 5px;
    font-size: 0.85rem;
    font-weight: 500;
    pointer-events: none; /* Taki text click ko block na kare */
    z-index: 10;
    backdrop-filter: blur(2px);
    border-left: 3px solid var(--primary-blue);
    }