body {
            font-family: Arial, sans-serif;
        }
        .preview {
            max-height: 50px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .popup {
            display: none;
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: white;
            padding: 20px;
            box-shadow: 0px 0px 10px rgba(0,0,0,0.2);
            border-radius: 8px;
            z-index: 1000;
        }
        .overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
        }
        .close-btn {
            cursor: pointer;
            background: #c2b2c1;
            color: white;
            padding: 5px 10px;
            border: none;
            margin-top: 10px;
        }
    </style>