body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: #f7f7f7;
    color: #333;
}

header {
    background: #222;
    color: #fff;
    padding: 60px 20px;
    text-align: center;
}

.tagline {
    font-size: 1.2em;
    opacity: 0.8;
}

section {
    padding: 40px 20px;
    max-width: 900px;
    margin: auto;
}

h2 {
    border-bottom: 2px solid #ddd;
    padding-bottom: 10px;
}

.book-grid {
    display: grid;
    /*grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));*/
    gap: 20px;
}

.book-card {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    text-align: center;
}

.book-card img {
    max-width: 100%;
    border-radius: 4px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

input, textarea {
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
}

button {
    padding: 12px;
    background: #222;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

button:hover {
    background: #444;
}

footer {
    text-align: center;
    padding: 20px;
    background: #222;
    color: #fff;
    margin-top: 40px;
}

.thanks {
    margin-top: 15px;
    background: #dff0d8;
    padding: 10px;
    border-radius: 6px;
}