body {
            font-family: Arial, sans-serif;
            //padding: 50px;
        }

        /* Overlay background */
        .overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            justify-content: center;
            align-items: center;
            z-index: 1000;
        }

        /* Floating message box */
        .message-box {
            background: #fff;
            padding: 25px 40px;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
            animation: fadeIn 0.3s ease-in-out;
        }

        .message-box h2 {
            margin-bottom: 15px;
        }

        .close-btn {
            margin-top: 10px;
            padding: 6px 14px;
            border: none;
            background: #007bff;
            color: white;
            cursor: pointer;
            border-radius: 4px;
        }

        .close-btn:hover {
            background: #0056b3;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: scale(0.9);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }