body {
    font-family: 'Montserrat', Arial, sans-serif;
    margin: 0;
    background-color: #d6d6d6;
    color: #1a1a1a;
}

.site-header {
    background-color: #06172c;
    color: white;
    text-align: center;
    padding: 60px 20px;
}

.header-logo {
    max-width: 300px;
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto 15px auto;
}

.tagline {
    margin: 0;
    font-size: 22px;
}

.page-layout {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 70px;
    padding: 50px 40px 70px;
    align-items: start;
}

.side-menu {
    width: 100%;
    position: sticky;
    top: 20px;
}

.side-block {
    margin-bottom: 35px;
}

.side-block h2 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #0b1f3a;
    font-family: 'Merriweather', serif;
}

.side-block p {
    margin: 0;
    line-height: 1.7;
    font-size: 16px;
    max-width: 280px;
}

.main-content {
    width: 100%;
}

.cover-section {
    max-width: 980px;
    margin: 0 auto;
    background-color: transparent;
    padding: 0;
    text-align: center;
}

.cover-section h2 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #0b1f3a;
    font-family: 'Merriweather', serif;
    text-align: center;
}

.cover-text {
    margin-bottom: 25px;
    font-size: 18px;
    color: #444444;
    text-align: center;
}

.cover-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 25px;
}

.cover-card {
    background-color: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    text-align: center;
    width: 220px;
}

.cover-image {
    width: 220px;
    height: 330px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
}

.book-title {
    margin-top: 12px;
    margin-bottom: 0;
    font-weight: bold;
    color: #0b1f3a;
    font-family: 'Merriweather', serif;
    text-align: center;
}

@media (max-width: 1000px) {
    .page-layout {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 35px 20px 50px;
    }

    .side-menu {
        width: 100%;
        position: static;
    }

    .main-content {
        width: 100%;
    }

    .cover-section {
        max-width: 100%;
    }

    .cover-grid {
        justify-content: center;
    }

    .side-block p,
    .cover-section h2,
    .cover-text {
        max-width: 100%;
    }
}