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

header {
    background-color: #4CAF50;
    color: white;
    text-align: center;
    padding: 1rem;
}

nav a {
    margin: 0 15px;
    color: white;
    text-decoration: none;
    font-size: 18px;
}

.language-selector {
    text-align: right;
    padding: 10px;
}

.search-bar {
    margin: 20px;
    text-align: center;
}

.search-bar input[type="text"] {
    width: 70%;
    padding: 10px;
    font-size: 16px;
}

.search-bar button {
    padding: 10px 20px;
    font-size: 16px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}

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

.book-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    padding: 20px;
}

.book {
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.book img {
    width: 150px;
    height: 250px;
    border-radius: 5px;
}

.book h3 {
    font-size: 18px;
    margin: 10px 0;
}

.book p {
    font-size: 14px;
    color: #555;
}

.book button {
    background-color: #ff9800;
    color: white;
    border: none;
    padding: 10px;
    margin-top: 10px;
}

.book button:hover {
    background-color: #e68900;
}

.add-book {
    background-color: #fff;
    padding: 20px;
    margin: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
.add-book input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    font-size: 16px;
}

.add-book button {
    padding: 10px 20px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}

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