body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
}

h1 {
    margin: 20px;
    color: #333;
    font-size: 18px;
}

.biblioteca {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    width: 90%;
    max-width: 1200px;
    margin: 20px auto;
}

.ebook {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 15px;
    text-align: center;
    transition: transform 0.2s;
}

.ebook:hover {
    transform: scale(1.05);
}

.ebook img {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

.ebook h3 {
    font-size: 18px;
    margin: 10px 0;
    color: #444;
}

.ebook p {
    font-size: 14px;
    color: #666;
}

.ebook a {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 16px;
    background-color: #007BFF;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    transition: background-color 0.3s;
}

.ebook a:hover {
    background-color: #0056b3;
}

.search-bar {
    margin: 20px 0;
    width: 90%;
    max-width: 400px;
}

.search-bar input[type="text"] {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    border-radius: 5px;
    border: 1px solid #ccc;
}
nav {
    background-color: #9400D3;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
    padding: 30px;
}
nav a {
    color: white;
    text-decoration: none;
    margin: 10px;
    font-weight: bold;
}
nav a:hover {
    text-decoration: underline;
}
.container {
    text-align: center;
}