body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #333;
    color: white;
    padding: 10px 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

header nav ul {
    list-style-type: none;
    display: flex;
    gap: 20px;
}

header nav ul li a {
    color: white;
    text-decoration: none;
}

header .header-right a {
    color: white;
    text-decoration: none;
    margin-left: 15px;
}

.main-banner {
    background: url('banner.jpg') no-repeat center center;
    background-size: cover;
    padding: 60px 0;
    text-align: center;
    color: white;
}

.main-banner .btn-primary {
    background-color: #ff6347;
    padding: 10px 20px;
    text-decoration: none;
    color: white;
}

.categories {
    text-align: center;
    margin-top: 50px;
}

.categories .category-list {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.categories .category-item {
    background-color: #f0f0f0;
    padding: 20px;
    border-radius: 5px;
}

footer {
    background-color: #333;
    color: white;
    padding: 20px 0;
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

footer .footer-links ul {
    list-style-type: none;
}

footer .footer-links ul li {
    display: inline;
    margin-right: 20px;
}

footer .social-media a {
    color: white;
    margin-left: 15px;
}

footer .newsletter input {
    padding: 5px;
}

footer .newsletter button {
    padding: 5px 10px;
    background-color: #ff6347;
    color: white;
    border: none;
}


.category-header {
    background-color: #f0f0f0;
    padding: 20px;
    text-align: center;
}

.books-list {
    margin-top: 20px;
}

.book-items {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.book-item {
    width: 200px;
    text-align: center;
    border: 1px solid #ddd;
    padding: 10px;
}

.book-item img {
    max-width: 100%;
    height: auto;
}

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

.book-item p {
    font-size: 14px;
}

.btn-add-to-cart {
    background-color: #ff6347;
    color: white;
    padding: 5px 10px;
    text-decoration: none;
    border-radius: 5px;
    display: inline-block;
    margin-top: 10px;
}


.bestsellers-header {
    background-color: #f0f0f0;
    padding: 20px;
    text-align: center;
}

.bestsellers-list {
    margin-top: 20px;
}

.book-items {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.book-item {
    width: 200px;
    text-align: center;
    border: 1px solid #ddd;
    padding: 10px;
}

.book-item img {
    max-width: 100%;
    height: auto;
}

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

.book-item p {
    font-size: 14px;
}

.book-item .btn-add-to-cart {
    background-color: #ff6347;
    color: white;
    padding: 5px 10px;
    text-decoration: none;
    border-radius: 5px;
    display: inline-block;
    margin-top: 10px;
}


.offers-header {
    background-color: #f0f0f0;
    padding: 20px;
    text-align: center;
}

.offers-list {
    margin-top: 20px;
}

.book-items {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.book-item {
    width: 200px;
    text-align: center;
    border: 1px solid #ddd;
    padding: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.book-item img {
    max-width: 100%;
    height: auto;
}

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

.book-item p {
    font-size: 14px;
}

.book-item .btn-add-to-cart {
    background-color: #ff6347;
    color: white;
    padding: 5px 10px;
    text-decoration: none;
    border-radius: 5px;
    display: inline-block;
    margin-top: 10px;
}

.book-item del {
    color: #777;
    font-size: 14px;
}

.book-item strong {
    color: #ff6347;
    font-size: 16px;
}