body {
    font-family: Arial, sans-serif;
    margin: 40px;
    background-color: #ffffff;
    color: #000000;
}

h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #000000;
    text-transform: uppercase;
}

#pdf-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.pdf-category {
    margin-bottom: 20px;
}

.pdf-category h2 {
    margin-bottom: 10px;
    color: #000;
}

.pdf-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pdf-item {
    padding: 10px 15px;
    border: 1px solid #ccc;
    border-radius: 6px;
    text-decoration: none;
    color: rgb(28, 210, 130);
    transition: background-color 0.2s;
}

.pdf-item:hover {
    background-color: #f0f0f0;
}

footer {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 50px;
    padding: 20px 40px;
    font-size: 0.9em;
    border-top: 1px solid #ccc;
}

footer span, footer a {
    color: #000;
    text-decoration: none;
}

footer a:hover {
    color: rgb(28, 210, 130);
}