/* Global styles */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
}

header {
    background-color: #003366;
    color: white;
    padding: 15px;
    text-align: center;
}

header .logo img {
    max-width: 150px;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 10px 0;
}

nav ul li {
    display: inline;
    margin-right: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

main {
    margin: 30px;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

footer {
    background-color: #003366;
    color: white;
    text-align: center;
    padding: 10px;
}

footer .social-links a {
    margin: 0 10px;
    color: white;
    text-decoration: none;
}

footer .social-links a:hover {
    text-decoration: underline;
}

.hero {
    text-align: center;
    margin-bottom: 30px;
}

.hero h1 {
    font-size: 2em;
}

.cta-button {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    background-color: #0056b3;
}

.book-list, .course-list {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.book-item, .course-item {
    width: 250px;
    padding: 20px;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    text-align: center;
}

.add-to-cart {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
}

.add-to-cart:hover {
    background-color: #0056b3;
}