body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    text-align: center;
    width: 400px;
    height: 500px;
}

h1 {
    color: #4CAF50;
}

form {
    display: flex;
    flex-direction: column;
}

label {
    margin: 10px 0 5px;
    font-weight: bold;
}

input[type="file"], input[type="text"], select {
    margin: 10px 0;
    padding: 10px;
    font-size: 16px;
}

input[type="submit"] {
    background: #4CAF50;
    color: #fff;
    padding: 10px;
    border: none;
    cursor: pointer;
    font-size: 16px;
    border-radius: 5px;
    margin-top: 20px;
}

input[type="submit"]:hover {
    background: #45a049;
}

#error {
    color: red;
    margin-top: 20px;
}

#message {
    margin-top: 20px;
    font-weight: bold;
}

.upload-area {
    border: 2px dashed #4CAF50;
    padding: 20px;
    margin: 10px 0;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.2s;
}

.upload-area.dragging {
    background-color: #e8f5e9;
}
