.books-showcase {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.book-feature {
    display: grid;
    grid-template-columns: minmax(240px, 0.85fr) minmax(300px, 1.2fr);
    gap: clamp(18px, 3vw, 28px);
    align-items: center;
    padding: clamp(20px, 3vw, 30px);
    border: 1px solid var(--line);
    border-radius: 22px;
    background: #ffffff;
    box-shadow: 0 12px 30px rgba(15, 58, 95, 0.08);
}

.book-feature.is-reverse {
    grid-template-columns: minmax(300px, 1.2fr) minmax(240px, 0.85fr);
}

.book-feature.is-reverse .book-feature-cover {
    order: 2;
}

.book-feature.is-reverse .book-feature-content {
    order: 1;
}

.book-feature-cover {
    margin: 0;
    display: flex;
    justify-content: center;
}

.book-feature-cover img {
    width: min(100%, 320px);
    aspect-ratio: 0.72 / 1;
    object-fit: cover;
    border-radius: 16px;
    display: block;
    background: #fff;
    border: 1px solid rgba(29, 95, 146, 0.14);
    box-shadow:
        0 18px 34px rgba(15, 58, 95, 0.16),
        10px 0 0 rgba(255, 255, 255, 0.75),
        11px 0 0 rgba(29, 95, 146, 0.08);
}

.book-feature-content {
    min-width: 0;
}

.book-feature-heading {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.book-feature-heading h2 {
    margin: 0;
    color: var(--brand-900);
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    line-height: 1.15;
}

.book-year {
    color: var(--brand-700);
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.book-feature-lead {
    margin: 0 0 14px;
    color: var(--brand-900);
    font-size: 1.05rem;
    line-height: 1.7;
    font-weight: 700;
}

.book-feature-content p {
    margin: 0;
    color: var(--muted);
    line-height: 1.72;
}

.book-feature-content p + p {
    margin-top: 12px;
}

.book-feature-actions {
    margin-top: 20px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.book-btn {
    text-decoration: none;
    font-weight: 800;
    padding: 12px 18px;
    border-radius: 12px;
    transition: transform 180ms ease, filter 180ms ease, background-color 180ms ease, color 180ms ease;
}

.book-btn:hover,
.book-btn:focus-visible {
    transform: translateY(-1px);
    outline: none;
}

.book-btn-primary {
    color: #fff;
    background: linear-gradient(130deg, var(--accent), var(--accent-strong));
    box-shadow: var(--shadow);
}

.book-btn-primary:hover,
.book-btn-primary:focus-visible {
    filter: brightness(1.04);
}

.book-btn-secondary {
    color: var(--brand-700);
    border: 1px solid rgba(29, 95, 146, 0.18);
    background: rgba(43, 126, 191, 0.08);
}

.book-btn-secondary:hover,
.book-btn-secondary:focus-visible {
    background: rgba(43, 126, 191, 0.14);
    color: var(--brand-900);
}

.books-author-note {
    margin-top: 28px;
    display: grid;
    grid-template-columns: minmax(240px, 0.8fr) minmax(280px, 1.2fr);
    gap: 18px;
    align-items: center;
    padding: clamp(20px, 3vw, 30px);
    border: 1px solid var(--line);
    border-radius: 22px;
    background: linear-gradient(160deg, rgba(29, 95, 146, 0.08), rgba(244, 163, 64, 0.12));
}

.books-author-note-media {
    margin: 0;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(29, 95, 146, 0.16);
    background: #fff;
}

.books-author-note-media img {
    width: 100%;
    height: 100%;
    max-height: 420px;
    object-fit: cover;
    display: block;
}

.books-author-note-content h2 {
    margin: 8px 0 12px;
    color: var(--brand-900);
    font-size: clamp(1.45rem, 3vw, 2rem);
    line-height: 1.18;
}

.books-author-note-content p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.books-author-note-content p + p {
    margin-top: 12px;
}

@media (max-width: 960px) {
    .book-feature,
    .book-feature.is-reverse,
    .books-author-note {
        grid-template-columns: 1fr;
    }

    .book-feature.is-reverse .book-feature-cover,
    .book-feature.is-reverse .book-feature-content {
        order: initial;
    }

    .book-feature-cover {
        justify-content: flex-start;
    }
}

@media (max-width: 620px) {
    .book-feature,
    .books-author-note {
        border-radius: 18px;
        padding: 20px;
    }

    .book-feature-actions {
        flex-direction: column;
    }

    .book-btn {
        text-align: center;
    }

    .book-feature-cover img {
        width: min(100%, 260px);
    }
}