body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    text-align: center;
    background: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

h1, h2 {
    margin-bottom: 20px;
}

p {
    margin-bottom: 15px;
}

.book-cover {
    max-width: 100%;
    height: auto;
    margin: 20px 0;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #5cb85c;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.btn:hover {
    background: #4cae4c;
}

label {
    display: block;
    margin: 10px 0 5px;
}

input {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
}