body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.login-container, .upload-container {
    max-width: 400px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

h2 {
    margin-top: 0;
    margin-bottom: 20px;
    text-align: center;
}

label {
    display: block;
    font-weight: bold;
}

input[type="text"], input[type="password"], input[type="file"], input[type="submit"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
}

input[type="submit"] {
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}

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