body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
        }
    
        .overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 999;
        }
        .popup {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 1000;
            background: #fff;
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
            max-width: 90%;
            width: 600px;
            text-align: center;
        }
        .popup img {
            width: 100%;
            border-bottom: 1px solid #ccc;
            border-radius: 10px 10px 0 0;
        }
        .popup .close {
            position: absolute;
            top: 10px;
            right: 10px;
            font-size: 24px;
            font-weight: bold;
            color: #333;
            cursor: pointer;
            background: none;
            border: none;
        }
        @media (max-width: 480px) {
            .popup {
                max-width: 95%;
            }
        }