body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    width: 80%;
    max-width: 800px;
    text-align: center;
}

h1, h2, h3 {
    color: #333;
}

a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #0056b3;
}

input[type="file"] {
    border: 2px dashed #007bff;
    border-radius: 5px;
    padding: 20px;
    width: calc(100% - 44px);
    margin: 20px 0;
    cursor: pointer;
    background-color: #f0f8ff;
}

pre {
    background-color: #eee;
    padding: 15px;
    border-radius: 5px;
    white-space: pre-wrap;
    word-wrap: break-word;
    text-align: left;
}

.home-link {
    display: block;
    margin-top: 20px;
    font-size: 16px;
}

.github-link {
    position: absolute;
    top: 20px;
    right: 20px;
}