body {
            font-family: Arial, sans-serif;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 20px;
        }

        .container {
            background-color: #C4C4C4;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            width: 700px;
            text-align: center;
        }

        h1 {
            color: #2c3e50;
            margin-bottom: 20px;
        }

        .input-group {
            margin-bottom: 25px;
            border: 2px solid #3498db;
            border-radius: 10px; 
            padding: 15px;
            display: flex;
            flex-direction: column;
            align-items: center;
            /* input-group 그림자 */
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08); 
        }

        #imageFile {
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 4px;
            width: 100%;
            margin-bottom: 15px;
        }

        .preview-area {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 20px;
            margin-top: 15px;
            padding: 10px;
            background-color: #ecf0f1;
            border-radius: 10px; 
            /* 미리보기 영역 그림자 */
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06); 
        }

        .preview-box {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .preview-box p {
            font-size: 12px;
            color: #7f8c8d;
            margin: 5px 0 0;
        }

        .download-area {
            margin-top: 30px;
            padding: 15px;
            border: 1px dashed #95a5a6;
            border-radius: 10px; 
            /* 다운로드 영역 그림자 */
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06); 
        }

        .download-area button {
            background-color: #2ecc71;
            color: white;
            border: none;
            padding: 10px 20px;
            margin: 5px;
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: background-color 0.3s;
        }

        .download-area button:hover {
            background-color: #27ae60;
        }

        canvas {
            border: 1px solid #bdc3c7;
            background-color: white;
            border-radius: 8px; 
        }