body {
            font-family: Arial, sans-serif;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            margin: 0;
            height: 100vh;
            background-color: #f0f0f0;
            overflow-y: auto;
        }

        h1 {
            margin-bottom: 2vw;
            font-size: 3vw;
            text-align: center;
        }

        a {
            color: #007BFF;
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        .upload-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 2vw;
        }

        .upload-item {
            display: flex;
            align-items: center;
            margin-bottom: 1vw;
        }

        .upload-item label {
            margin-right: 1vw;
        }

        .upload-item input[type="file"] {
            margin-right: 1vw;
        }

        .chart-container {
            position: relative;
            width: 80vw;
            height: 80vh;
            max-width: 600px;
            max-height: 600px;
            border: 2px solid #ccc;
            background: repeating-linear-gradient(to bottom, #ffffff 0px, #ffffff 4vw, #f2f2f2 4vw, #f2f2f2 8vw);
            animation: pulse 3s infinite;
            margin-top: 20px;
            flex-shrink: 0;
        }

        @keyframes pulse {
            0%, 100% {
                background-color: #f0f0f0;
            }
            50% {
                background-color: #e0e0e0;
            }
        }

        .image-wrapper {
            position: absolute;
            bottom: 0;
            display: flex;
            justify-content: space-evenly;
            width: 100%;
            height: 100%;
            align-items: flex-end;
        }

        .uploaded-image {
            max-width: 45%;
            position: relative;
            bottom: 0;
            transition: height 0.3s ease-in-out;
        }

        .height-labels {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0;
    transform: translateY(15px);
    animation: slideUpFadeIn 0.8s ease-out forwards;
}

@keyframes slideUpFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

        .height-label {
            position: absolute;
            width: auto;
            text-align: center;
            font-size: 1.5vw;
            color: #333;
            background-color: rgba(255, 255, 255, 0.7);
            padding: 5px 10px;
            border-radius: 5px;
            transform: translateX(-50%);
        }

        .image-buttons-container {
            display: flex;
            flex-direction: column;
            width: 100%;
            max-width: 600px;
            margin: 10px 0;
            text-align: center;
        }

        .image-buttons-row {
            display: flex;
            justify-content: space-evenly;
            margin-bottom: 10px;
        }

        .image-button {
            padding: 10px 15px;
            border: none;
            cursor: pointer;
            font-size: 1em;
            color: white;
            border-radius: 5px;
            transition: background-color 0.3s ease;
        }

        .image-button.upload {
            background-color: green;
        }

        .image-button.upload:hover {
            background-color: darkgreen;
        }

        .image-button.select {
            background-color: orange;
        }

        .image-button.select:hover {
            background-color: darkorange;
        }

        .image-button.edit {
            background-color: blue;
        }

        .image-button.edit:hover {
            background-color: darkblue;
        }

        .add-image-button {
            background: linear-gradient(to right, #ffffff, #add8e6);
            color: #333;
            padding: 10px;
            cursor: pointer;
            text-align: center;
            font-size: 1.2em;
            border-radius: 5px;
            transition: background 0.3s ease;
        }

        .add-image-button:hover {
            background: linear-gradient(to right, #add8e6, #ffffff);
        }

        .remove-btn {
            background-color: #ff4444;
            color: white;
            border: none;
            padding: 5px 10px;
            border-radius: 3px;
            margin-left: 10px;
            cursor: pointer;
        }

        .remove-btn:hover {
            background-color: #cc0000;
        }

        .edit-btn {
            background-color: #007BFF;
            color: white;
            border: none;
            padding: 5px 10px;
            border-radius: 3px;
            margin-left: 10px;
            cursor: pointer;
        }

        .edit-btn:hover {
            background-color: #0056b3;
        }

        /* Editor Modal Styles */
        #imageEditorModal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.8);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }

        #imageEditorModal > div {
            background: white;
            padding: 20px;
            border-radius: 8px;
            max-width: 90%;
            max-height: 90%;
        }

        #imageEditorModal img {
            max-height: 60vh;
            max-width: 100%;
        }

        #imageEditorModal button {
            transition: background-color 0.3s;
        }

        #imageEditorModal button:hover {
            opacity: 0.9;
        }

        /* Upload Modal Styles */
        #uploadModal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.8);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }

        #uploadModal > div {
            background: white;
            padding: 20px;
            border-radius: 8px;
            max-width: 90%;
            max-height: 90%;
        }

        /* Character Selection Modal Styles */
        .modal {
            display: none;
            position: fixed;
            z-index: 1;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: auto;
            background-color: rgb(0,0,0);
            background-color: rgba(0,0,0,0.4);
        }

        .modal-content {
            background-color: #fefefe;
            margin: 15% auto;
            padding: 20px;
            border: 1px solid #888;
            width: 80%;
            max-width: 700px;
        }

        .close-button {
            color: #aaa;
            float: right;
            font-size: 28px;
            font-weight: bold;
        }

        .close-button:hover,
        .close-button:focus {
            color: black;
            text-decoration: none;
            cursor: pointer;
        }

        .category-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .category-button {
            background-color: #007BFF;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .category-button:hover {
            background-color: #0056b3;
        }

        .character-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
            gap: 10px;
        }

        .character-grid img {
            width: 100px;
            height: auto;
            cursor: pointer;
            border: 2px solid transparent;
        }

        .character-grid img:hover {
            border: 2px solid #007BFF;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 5vw;
            }

            .upload-item input[type="file"],
            .upload-item input[type="number"] {
                width: 80%;
            }

            .chart-container {
                width: 95vw;
                height: 60vh;
            }

            .height-label {
                font-size: 3.5vw;
            }

            .image-buttons-container {
                flex-direction: column;
            }

            .image-buttons-row {
                flex-direction: column;
                gap: 10px;
            }

            .image-button {
                font-size: 0.9em;
                padding: 8px 10px;
            }

            .upload-item {
                flex-wrap: wrap;
            }

            .upload-item label {
                width: 100%;
                margin-bottom: 5px;
            }

            /* Hide the second upload item on mobile */
            #uploadContainer1 .upload-item:nth-child(2) {
                display: none;
            }
        }