body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 20px;
        }
        .container {
            max-width: 800px;
            margin: 0 auto;
            padding: 20px;
        }
        h1 {
            text-align: center;
            color: #333;
            margin-bottom: 30px;
        }
        .input-group {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
        }
        input[type="text"] {
            flex: 1;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 16px;
        }
        button {
            padding: 10px 20px;
            background: #C850C0;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
        }
        .result-box {
            background: white;
            padding: 15px;
            margin: 10px 0;
            border-radius: 5px;
            border: 1px solid #ddd;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .copy-btn {
            padding: 5px 10px;
            background: #4158D0;
            color: white;
            border: none;
            border-radius: 3px;
            cursor: pointer;
        }
        .download-btn {
            background: #28a745;
            margin-top: 20px;
            display: none;
        }
        .button-group {
            display: flex;
            gap: 10px;
            justify-content: flex-end;
        }