body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
                Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
            color: #333;
            display: flex;
            padding: 2rem;
            margin: auto;
            min-height: 100vh;
            box-sizing: border-box;
        }

        .controls {
            width: 30%;
            text-align: center;
            position: fixed;
            top: 20px;
            left: 20px;
            height: calc(100% - 40px);
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .control-item {
            width: 100%;
            box-sizing: border-box;
            padding: 0 10px;
            margin-bottom: 10px;
        }

        .result {
            margin-left: 35%;
            width: 60%;
            text-align: center;
            padding-top: 20px;
        }

        canvas {
            max-width: 100%;
            height: auto;
        }

        label {
            display: block;
            margin: 10px 0 5px;
        }

        .custom-file-upload {
            background-color: transparent;
            border: 1px solid #ccc;
            padding: 0.4rem 0.8rem;
            cursor: pointer;
            font-size: 14px;
            width: fit-content;
            margin: 0 auto;
            display: block;
        }

        .custom-file-upload:hover {
            background-color: #eee;
        }

        #uploadImage {
            display: none;
        }