.books-section {
    background: var(--color-bg-grouped);
}

.books-section-title-highlight {
    background-image:
        linear-gradient(
            101deg,
            transparent 0%,
            color-mix(in srgb, var(--color-system-green) 60%, transparent) 5%,
            color-mix(in srgb, var(--color-system-green) 88%, transparent) 18%,
            color-mix(in srgb, var(--color-system-green) 45%, transparent) 50%,
            color-mix(in srgb, var(--color-system-green) 92%, transparent) 82%,
            color-mix(in srgb, var(--color-system-green) 60%, transparent) 95%,
            transparent 100%
        ),
        linear-gradient(
            96deg,
            transparent 2%,
            color-mix(in srgb, var(--color-system-green) 55%, transparent) 22%,
            color-mix(in srgb, var(--color-system-green) 30%, transparent) 65%,
            transparent 97%
        );
    background-repeat: no-repeat, no-repeat;
    background-size:
        100% 64%,
        100% 48%;
    background-position:
        0 90%,
        0 76%;
    padding: 0 0.22em;
    margin: 0 -0.22em;
}

.books {
    position: relative;
    overflow: hidden;
    padding: var(--space-12) 0;
}

.books::before,
.books::after {
    content: "";
    position: absolute;
    top: 0;
    width: clamp(60px, 6vw, 140px);
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

.books::before {
    left: 0;
    background: linear-gradient(
        90deg,
        var(--color-bg-grouped) 0%,
        transparent 100%
    );
}

.books::after {
    right: 0;
    background: linear-gradient(
        270deg,
        var(--color-bg-grouped) 0%,
        transparent 100%
    );
}

.books-track {
    display: flex;
    gap: var(--space-10);
    width: max-content;
    animation: books-scroll 70s linear infinite;
    will-change: transform;
}

.books:hover .books-track {
    animation-play-state: paused;
}

.book-card {
    width: min(380px, 80vw);
    height: 170px;
    flex: 0 0 auto;
    display: flex;
    align-items: start;
    gap: var(--space-5);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-separator);
    color: var(--color-text-primary);
    transition:
        transform var(--duration-base) var(--ease-standard),
        box-shadow var(--duration-base) var(--ease-standard);
}

.book-card:hover,
.book-card:focus-visible {
    transform: translateY(calc(var(--space-1) * -1));
    box-shadow: var(--shadow-lg);
    color: var(--color-text-primary);
}

.book-cover {
    flex: 0 0 auto;
    align-self: center;
    width: 150px;
    height: 220px;
    margin-block: calc(var(--space-10) * -1);
    margin-inline-start: calc(var(--space-10) * -1);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-separator);
    box-shadow: var(--shadow-md);
    background: var(--color-bg-grouped);
    overflow: hidden;
}

.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-card-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    min-width: 0;
    overflow: hidden;
}

.book-author {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-footnote);
    font-style: italic;
    color: var(--color-text-secondary);
    margin: 0;
    min-width: 0;
}

.book-author-avatars {
    display: inline-flex;
    flex-shrink: 0;
}

.book-author-avatar {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    object-fit: cover;
    border: 1.5px solid var(--color-bg-elevated);
    background: var(--color-bg-grouped);
}

.book-author-avatar + .book-author-avatar {
    margin-left: -8px;
}

.book-author-names {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.book-card-text h3 {
    font-size: var(--text-headline);
    margin: 0;
}

.book-tagline {
    color: var(--color-text-secondary);
    margin: 0;
    font-size: var(--text-subhead);
    line-height: var(--leading-snug);
}

@keyframes books-scroll {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

@media (prefers-reduced-motion: reduce) {
    .books-track {
        animation: none;
    }
}