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

    .container {
        display: flex;
        flex-direction: row;
    }



    /* ----------------- Left ------------------ */

    .left {
        width: 15%;
        padding: 20px;
        position: sticky;
    }

    .left-panel {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        background-color: #fff;
        z-index: 1;
        overflow-y: auto;
        padding: 20px;
    }

    .logo img {
        width: 100%;
        height: 10%;
    }

    .social-media {
        margin-top: 10px;
        text-align: center;
        border: 1px solid #ccc;
        padding: 10px;
        background-color: #f2f2f2;
    }

    .social-media a {
        display: block;
        margin-bottom: 10px;
        padding: 5px;
        background-color: #4CAF50;
        color: #fff;
        border-radius: 3px;
    }

    #g a:hover {
        background-color: #0D1117;
    }
    #i a:hover {
        background-color: #660334;
    }
    #y a:hover {
        background-color: #740202;
    }
    #t a:hover {
        background-color: #0c3a58;
    }

    .social-media h3 {
        margin: 0;
        padding: 0;
        font-size: 16px;
        color: #444444;
        margin-bottom: 10px;
        padding-bottom: 5px;
        border-bottom: 1px solid #ccc;
    }

    .ad-column {
        margin-bottom: 20px;
    }

    .quote {
        margin-top: 25px;
        text-align: center;
        border: 1px solid #ccc;
        padding: 10px;
        background-color: #f2f2f2;
    }

    .quote-label {
        margin: 0;
        padding: 0;
        font-size: 16px;
        color: #444444;
        margin-bottom: 10px;
        padding-bottom: 5px;
        border-bottom: 1px solid #ccc;
    }

    .random-quote {
        margin: 0;
        padding: 0;
        font-size: 16px;
        color: #444444;
        margin-bottom: 10px;
        padding-bottom: 5px;
        border-bottom: 1px solid #ccc;
    }



    /* ----------------- Center ------------------ */

    .center {
        width: 65%;
        background-color: #fff;
        margin-left: 17%;
    }

    h1 {
        text-align: center;
        margin-bottom: 30px;
        font-family: 'Helvetica Neue', Arial, sans-serif;
        font-size: 48px;
        font-weight: bold;
        color: #333;
        text-transform: uppercase;
        letter-spacing: 2px;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    }

    .search-container {
        background-color: #f2f2f2;
        padding: 10px;
        margin-bottom: 20px;
        text-align: center;
    }

    .search-container::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.1);
        z-index: -1;
    }

    .pagination {
        background-color: #f2f2f2;
        padding: 10px;
        margin-top: 20px;
        text-align: center;
        position: relative;
    }

    .pagination::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.1);
        z-index: -1;
    }

    .pagination-item {
        cursor: pointer;
        display: inline-block;
        margin: 0 5px;
    }

    .pagination-item.active {
        background-color: #4CAF50;
        color: #fff;
        font-weight: bold;
      }

    .pagination-item.disabled {
        opacity: 0.5; 
        cursor: not-allowed; 
        pointer-events: none;
      }
      

    .search-input {
        width: 100%;
        max-width: 400px;
        padding: 5px;
        font-size: 16px;
    }

    .search-button {
        padding: 6px 12px;
        background-color: #4CAF50;
        color: #fff;
        font-size: 16px;
        border: none;
        cursor: pointer;
    }

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

    #bookList {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .book {
        width: 200px;
        height: 400px;
        margin: 10px;
        padding: 10px;
        background-color: #f9f9f9;
        border: 1px solid #ccc;
        text-align: center;
    }

    .book img {
        padding-top: 5px;
        max-width: 100%;
        height: 250px;
        object-fit: cover;
    }

    .book-title {
        margin-top: 10px;
        font-size: 20px;
        line-height: 24px;
        overflow: hidden;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
    }

    .book-author {
        margin-top: 5px;
        color: #888;
    }

    .book-details a {
        display: block;
        margin-top: 10px;
        background-color: #4CAF50;
        color: #fff;
        text-decoration: none;
        padding: 5px;
        border-radius: 3px;
    }

    .book-details a:hover {
        background-color: #45a049;
    }

    .footer {
        text-align: center;
        margin: 30px;
        color: #888;
    }

    .heart {
        color: red;
    }


    /* ----------------- Right ------------------ */

    .right {
        width: 15%;
        position: sticky;
    }

    .right-panel {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        background-color: #fff;
        z-index: 1;
        overflow-y: auto;
        padding: 20px;
    }

    .tag-container {
        text-align: left;
        margin-top: 10px;
    }

    .tag {
        display: block;
        margin-bottom: 10px;
        padding: 5px 10px;
        background-color: #f2f2f2;
        color: #888;
        cursor: pointer;
        height: 100%;
        overflow-y: auto;
    }

    .tag:hover,
    .tag.active {
        background-color: #4CAF50;
        color: #fff;
    }




/* -------------- Media Queries ------------------ */

/* ----------------- Tablets --------------------- */
@media (max-width: 1280px) {
    .container {
        flex-direction: column;
    }

    .left {
        width: 100%;
        position: static;
    }

    .center {
        width: 100%;
        margin-left: 0;
    }

    .right {
        width: 100%;
        position: static;
    }

    .search-container,
    .pagination,
    .tag-container {
        text-align: center;
    }

    .search-input {
        margin-bottom: 10px;
    }
}

/* ----------------- Mobile Devices ----------------- */
@media (max-width: 1024px) {
    h1 {
        font-size: 36px;
    }

    .book {
        width: 100%;
        height: auto;
    }

    .search-input {
        max-width: 100%;
    }

    .left-panel,
    .right-panel {
        position: static;
        padding: 0;
    }

    .tag-container {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .tag {
        margin: 5px;
    }
}