@media (max-width: 768px) {
    header {
        flex-direction: column;
        height: auto;
        padding: 15px 10px;
        max-width: 100%;
        width: 100%;
    }

    .logo-section {
        width: 100%;
        margin-bottom: 15px;
        text-align: center;
    }

    .logo {
        font-size: 2.5rem;
        margin-top: 10px;
        letter-spacing: 1px;
    }

    .nav-bar {
        width: 100%;
        margin-top: 10px;
        padding: 10px 5px;
        flex-wrap: wrap;
        justify-content: space-around;
        border-radius: 15px;
    }

    nav {
        display: flex;
        flex-wrap: wrap;
        width: 100%;
        justify-content: center;
        gap: 5px;
    }

    .nav-button {
        padding: 8px 5px;
        font-size: 0.85rem;
        width: auto;
        flex: 1 1 calc(25% - 5px);
        height: auto;
        min-width: 50px;
    }

    .top {
        flex-direction: column;
        margin: 20px auto;
        max-width: 100%;
    }

    .top-left,
    .top-right {
        width: 100%;
        text-align: center;
        height: auto;
    }

    .top-right {
        text-align: center;
    }

    .book-picture {
        width: 100%;
        max-width: 300px;
        margin: 30px auto;
    }

    .title {
        font-size: 2.5rem;
        padding: 20px;
        padding-left: 20px;
        margin: 20px;
        display: block;
        word-wrap: break-word;
        white-space: normal;
        overflow-wrap: break-word;
    }

    .author-info {
        font-size: 1.5rem;
        padding: 10px;
        margin-top: 20px;
    }

    .sale-info {
        font-size: 1.3rem;
        padding: 5px;
    }

    .about-me {
        font-size: 2rem;
        padding: 10px;
        margin-top: 30px;
    }

    .info-about-me {
        font-size: 1.2rem;
        padding: 15px;
        max-width: 100%;
    }

    .photo {
        width: 100%;
        max-width: 250px;
        margin: 30px auto;
    }

    /* KSIAZKA.HTML - TABLET */
    .book-detail-container {
        flex-direction: column;
        gap: 30px;
        margin: 30px auto;
        padding: 0 15px;
    }

    .book-detail-left,
    .book-detail-right {
        width: 100%;
    }

    .book-detail-image {
        max-width: 100%;
    }

    .book-detail-title {
        font-size: 2rem;
    }

    .book-description {
        padding: 20px;
    }

    .section-title {
        font-size: 1.8rem;
        margin-top: 40px;
        margin-bottom: 20px;
    }

    .content-box {
        padding: 25px;
    }

    .table-of-contents {
        font-size: 1.1rem;
        line-height: 2;
    }

    .buy-links {
        gap: 10px;
    }

    .buy-link-button {
        padding: 12px 20px;
        font-size: 0.95rem;
        flex: 1;
        min-width: 120px;
    }

    /* WYDARZENIA.HTML - TABLET */
    .page-header {
        margin: 30px 0;
    }

    .page-title {
        font-size: 2.5rem;
    }

    .page-subtitle {
        font-size: 1.1rem;
    }

    .events-container {
        padding: 0 15px;
    }

    .event-item {
        flex-direction: column;
        gap: 20px;
        padding: 20px;
        margin-bottom: 40px;
    }

    .event-item:nth-child(even) {
        flex-direction: column;
    }

    .event-image {
        width: 100%;
        height: auto;
        min-height: 200px;
    }

    .event-title {
        font-size: 1.5rem;
    }

    .event-description {
        font-size: 1rem;
    }

    .facebook-section {
        margin: 50px 20px;
        padding: 30px 20px;
    }

    .facebook-text {
        font-size: 1rem;
    }

    /* KONTAKT.HTML - TABLET */
    .contact-container {
        padding: 0 15px;
    }

    .contact-info-section {
        padding: 30px;
    }

    .contact-title {
        font-size: 2rem;
    }

    .contact-description {
        font-size: 1rem;
    }

    .contact-detail {
        font-size: 1rem;
    }

    .form-group input,
    .form-group textarea {
        font-size: 16px;
    }

    .social-links {
        flex-direction: column;
        gap: 10px;
    }

    .social-button {
        width: 100%;
    }

    .contact-info-box {
        padding: 20px;
    }

    .footer {
        height: auto;
        padding: 20px 10px;
    }

    .footer-text {
        padding: 8px 10px;
        font-size: 0.95rem;
    }
}

/* RESPONSIVE DESIGN - MOBILE (480px and below) */
@media (max-width: 480px) {
    header {
        padding: 10px 5px;
        width: 100%;
        max-width: 100%;
    }

    .logo {
        font-size: 1.5rem;
        letter-spacing: 1px;
        margin-top: 5px;
    }

    .logo-section {
        margin-bottom: 10px;
        width: 100%;
        text-align: center;
    }

    .nav-bar {
        width: 100%;
        padding: 5px;
        border-radius: 12px;
        margin-top: 5px;
        flex-wrap: wrap;
        justify-content: space-around;
        gap: 2px;
    }

    nav {
        display: flex;
        flex-wrap: wrap;
        gap: 3px;
        width: 100%;
        justify-content: center;
    }

    .nav-button {
        padding: 6px 4px;
        font-size: 0.65rem;
        height: auto;
        width: auto;
        flex: 1 1 calc(25% - 3px);
        min-width: 40px;
    }

    .top {
        margin: 10px;
        gap: 15px;
    }

    .book-picture {
        width: 100%;
        max-width: 200px;
        margin: 15px auto;
    }

    .title {
        font-size: 1.5rem;
        padding: 15px;
        border-radius: 30px;
        margin: 10px;
        display: block;
        word-wrap: break-word;
        white-space: normal;
        max-width: 100%;
        overflow-wrap: break-word;
    }

    .author-info {
        font-size: 1.2rem;
        padding: 8px;
        margin-top: 15px;
    }

    .sale-info {
        font-size: 1rem;
        padding: 5px;
    }

    .book-buttons {
        margin-top: 10px;
        display: block;
        margin-bottom: 10px;
    }

    .buy-now,
    .description {
        padding: 12px;
        margin-top: 10px;
        border-radius: 25px;
        font-size: 0.95rem;
    }

    .about-me {
        font-size: 1.5rem;
        padding: 8px;
        margin-top: 20px;
    }

    .info-about-me {
        font-size: 1rem;
        padding: 12px;
        margin-top: 15px;
    }

    .photo {
        width: 100%;
        max-width: 180px;
        margin: 20px auto;
    }

    /* KSIAZKA.HTML - MOBILE */
    .book-detail-container {
        gap: 15px;
        margin: 20px 10px;
        padding: 0;
    }

    .book-detail-image {
        max-width: 100%;
    }

    .book-detail-title {
        font-size: 1.5rem;
    }

    .book-detail-subtitle {
        font-size: 1rem;
    }

    .book-description {
        padding: 15px;
        margin-bottom: 15px;
    }

    .book-description p {
        font-size: 0.95rem;
        text-align: left;
    }

    .section-title {
        font-size: 1.5rem;
        margin-top: 25px;
        margin-bottom: 15px;
    }

    .book-content-section {
        padding: 0 10px;
        margin: 0 auto 30px;
    }

    .content-box {
        padding: 15px;
        border-radius: 20px;
    }

    .table-of-contents {
        font-size: 0.95rem;
        line-height: 1.8;
    }

    .table-of-contents li {
        padding: 8px 0;
    }

    .buy-links {
        gap: 8px;
        flex-direction: column;
    }

    .buy-link-button {
        padding: 12px 15px;
        font-size: 0.9rem;
        width: 100%;
    }

    /* EVENIMENTE.HTML - MOBILE */
    .page-title {
        font-size: 1.8rem;
    }

    .page-subtitle {
        font-size: 1rem;
    }

    .events-container {
        padding: 0 10px;
    }

    .event-item {
        padding: 15px;
        margin-bottom: 25px;
        gap: 15px;
    }

    .event-image {
        width: 100%;
        height: auto;
        min-height: 150px;
        border-radius: 15px;
    }

    .event-title {
        font-size: 1.2rem;
    }

    .event-date {
        font-size: 0.85rem;
    }

    .event-description {
        font-size: 0.95rem;
        text-align: left;
    }

    .facebook-section {
        margin: 30px 10px;
        padding: 20px;
        border-radius: 20px;
    }

    .facebook-text {
        font-size: 0.95rem;
        margin-bottom: 15px;
    }

    .facebook-button {
        padding: 12px 25px;
        font-size: 0.95rem;
    }

    /* KONTAKT.HTML - MOBILE */
    .contact-container {
        padding: 0 10px;
    }

    .contact-info-section {
        padding: 20px;
        border-radius: 20px;
    }

    .contact-title {
        font-size: 1.5rem;
    }

    .contact-description {
        font-size: 0.95rem;
    }

    .contact-detail {
        font-size: 0.95rem;
    }

    .form-group {
        margin-bottom: 15px;
    }

    .form-group label {
        font-size: 0.9rem;
        margin-bottom: 6px;
    }

    .form-group input,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 16px;
        border-radius: 12px;
    }

    .form-group textarea {
        min-height: 120px;
    }

    .submit-button {
        padding: 12px;
        font-size: 1rem;
        width: 100%;
    }

    .contact-info-box {
        padding: 15px;
        margin-bottom: 15px;
    }

    .contact-info-box h3 {
        font-size: 1.1rem;
    }

    .social-links {
        gap: 8px;
        margin: 20px 0;
    }

    .social-button {
        padding: 12px 15px;
        font-size: 0.85rem;
        min-width: 80px;
    }

    .blog-info {
        padding: 15px;
        border-radius: 15px;
    }

    .blog-info h3 {
        font-size: 1.1rem;
    }

    .blog-info p {
        font-size: 0.9rem;
    }

    .footer {
        padding: 15px 8px;
    }

    .footer-text {
        padding: 5px 8px;
        font-size: 0.85rem;
    }

    .reviews-container {
        padding: 20px;
    }

    .review-item h3 {
        font-size: 1.1rem;
    }

    .review-text {
        font-size: 0.95rem;
    }
}