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

.container {
    width: 300px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

input, textarea, button {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
    border: 1px solid #ccc;
}

button {
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
}

button:hover {
    background-color: #45a049;
}

.upload-btn, .download-btn {
    display: block;
    text-align: center;
    background-color: #007bff;
    color: white;
    padding: 10px;
    margin-top: 20px;
    text-decoration: none;
    border-radius: 4px;
}

.upload-btn:hover, .download-btn:hover {
    background-color: #0056b3;
}

.btn {
    display: inline-block;
    background-color: #ff4d4d;
    color: white;
    padding: 10px 20px;
    margin: 10px;
    text-decoration: none;
    border-radius: 5px;
}

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