body {
            background: #111827;
        }
        .center {
            font-family: 'Arial', sans-serif;
            background: transparent;
            margin: 40px auto;
            max-width: 800px;
            padding: 20px;
        }

        .container {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            padding: 20px;
        }
        h1 {
            color: #333;
            text-align: center;
        }
        .upload-form {
            background-color: #f8f9fa;
            border-radius: 5px;
            padding: 20px;
            text-align: center;
        }
        input[type="file"] {
            border: 1px solid #ddd;
            margin: 10px auto;
            padding: 10px;
            width: calc(100% - 48px);
        }
        input[type="button"] {
            background-color: #007bff;
            color: white;
            font-size: 16px;
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            display: block;
            margin: 20px auto;
            width: 200px;
        }
        input[type="button"]:hover {
            background-color: #0056b3;
        }
        img {
            margin-top: 20px;
            max-width: 100%;
            border-radius: 5px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            cursor: pointer;
            display: block;
            margin-left: auto;
            margin-right: auto;
        }

        .tooltip {
            visibility: hidden; /* Hide tooltip by default */
            width: 200px;
            background-color: black;
            color: #fff;
            text-align: center;
            border-radius: 6px;
            padding: 5px 0;
            position: fixed;
            z-index: 1;
            bottom: 20px; /* Position from bottom */
            left: 50%; /* Center horizontally */
            transform: translateX(-50%); /* Adjust horizontal position */
            opacity: 0;
            transition: visibility 0s, opacity 0.5s linear;
        }

        .tooltip.show {
            visibility: visible;
            opacity: 1;
        }

.dropzone {
    background: #f0f0f0;
    border: 2px dashed #d6d6d6;
    border-radius: 10px;
    position: relative;
    width: 100%;
    max-width: 800px;
    height: 200px;
    margin: 20px auto;
    padding: 50px;
    box-sizing: border-box;
    transition: background-color 0.3s;
    cursor: pointer;
}

.dropzone:hover {
    background: #e0e0e0;
}

.dropzone-content {
    text-align: center;
    color: #999;
    font-size: 16px;
}

.upload-icon {
    font-size: 24px; /* Adjust size as needed, replace with an actual icon if you prefer */
    margin-bottom: 8px;
}