body
{
   background-color: #FFFFFF;
   color: #000000;
   font-family: Arial;
   font-weight: normal;
   font-size: 13px;
   line-height: 1.1875;
   margin: 0;
   padding: 0;
}
        body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 20px;
        }
        .container {
            max-width: 1660px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            gap: 80px;
            align-items: stretch;
        }
        .left-column, .middle-column, .right-column {
            min-width: 0;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .section {
            border-radius: 10px;
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            border: 1px solid #ddd;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .left-column .section {
            background: #e6f0fa;
        }
        .middle-column .section {
            background: #f0f9f0;
        }
        .right-column .section {
            background: #fff3e6;
        }
        h1 {
            color: #333;
            text-align: center;
            margin-bottom: 20px;
        }
        h2 {
            color: #555;
            margin-bottom: 15px;
        }
        textarea {
            width: 100%;
            margin: 10px 0;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 5px;
            resize: vertical;
            box-sizing: border-box;
        }
        select, button {
            padding: 8px 20px;
            margin: 5px 10px 5px 0;
            border-radius: 5px;
            font-size: 14px;
            min-width: 100px;
            text-align: center;
        }
        .left-column button {
            background: #007BFF;
            color: white;
            border: none;
            cursor: pointer;
            transition: background 0.3s;
        }
        .left-column button:hover {
            background: #0056b3;
        }
        .left-column .clear-btn {
            background: #dc3545;
        }
        .left-column .clear-btn:hover {
            background: #c82333;
        }
        .middle-column button {
            background: #4CAF50;
            color: white;
            border: none;
            cursor: pointer;
            transition: background 0.3s;
            min-width: 50px;
        }
        .middle-column button:hover {
            background: #45a049;
        }
        .middle-column .clear-btn {
            background: #dc3545;
        }
        .middle-column .clear-btn:hover {
            background: #c82333;
        }
        .right-column button {
            background: #FF9800;
            color: white;
            border: none;
            cursor: pointer;
            transition: background 0.3s;
        }
        .right-column button:hover {
            background: #e68900;
        }
        .right-column .clear-btn {
            background: #dc3545;
        }
        .right-column .clear-btn:hover {
            background: #c82333;
        }
        select {
            border: 1px solid #ccc;
            background: white;
        }
        .result {
            background-color: #f0f0f0;
            padding: 10px;
            margin-top: 10px;
            border-radius: 5px;
            word-break: break-all;
            height: 120px;
            overflow-y: auto;
            white-space: pre-wrap;
            width: 100%;
            box-sizing: border-box;
        }
        .result-container {
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        label {
            font-weight: bold;
            margin-right: 10px;
        }
        .controls {
            display: flex;
            flex-direction: row;
            align-items: center;
            gap: 10px;
            flex-wrap: nowrap;
            margin-top: 0;
        }
        .button-group {
            display: flex;
            flex-direction: row;
            align-items: center;
            gap: 10px;
            flex-wrap: nowrap;
            margin-top: 10px;
        }
        .format-group {
            display: flex;
            flex-direction: row;
            align-items: center;
            gap: 10px;
            flex-wrap: nowrap;
            margin: 0 0 10px 0;
            flex-grow: 1;
        }
        .drop-zone {
            border: 2px solid #ccc;
            padding: 10px;
            background: #fff;
            border-radius: 5px;
            margin: 10px 0;
            transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
            box-shadow: 0 1px 3px rgba(0,0,0,0.05);
            width: 100%;
            height: 100px;
            box-sizing: border-box;
            resize: vertical;
        }
        .drop-zone.dragover {
            border-color: #FF9800;
            background: #fff3e6;
            box-shadow: 0 2px 6px rgba(255, 152, 0, 0.3);
        }
        .preview {
            text-align: center;
            margin: 0;
            width: 100px;
            height: 100px;
            overflow: hidden;
        }
        .preview img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            border: 1px solid #ddd;
            border-radius: 5px;
        }
        .format-preview-container {
            display: flex;
            flex-direction: row;
            align-items: center;
            gap: 10px;
            margin: 0 0 10px 0;
        }