/* E-Books module */
.ebook-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 14px; }
.ebook-filters--sub { margin-bottom: 32px; }
.ebook-chip { display: inline-block; padding: 6px 16px; border-radius: 999px; background: var(--white); border: 1px solid #c8c8c8; font-size: 14px; font-weight: 500; text-decoration: none; transition: background .2s, color .2s, border-color .2s; }
.ebook-chip:hover { border-color: var(--maroon); color: var(--maroon); }
.ebook-chip.is-active { background: var(--maroon); border-color: var(--maroon); color: var(--white); }
.ebook-filters--sub .ebook-chip { padding: 4px 12px; font-size: 13px; }

.ebook-group + .ebook-group { margin-top: 56px; }
.ebook-group__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 24px; }
.ebook-group__more { font-size: 14px; font-weight: 600; color: var(--maroon); text-decoration: none; white-space: nowrap; }
.ebook-group__more:hover { text-decoration: underline; }

/* Book covers come in mixed shapes: show them whole on a neutral background. */
.ebook-grid { grid-template-columns: repeat(4, 1fr); }
.ebook-grid .card__media { aspect-ratio: 4 / 5; }
.ebook-grid .card__media > img { object-fit: contain; padding: 12px; }
.ebook-grid .card__title { font-size: 16px; }

.ebook-detail { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 48px; align-items: start; }
.ebook-detail__cover { background: var(--grey-card); border-radius: var(--radius); padding: 16px; box-shadow: 0 2px 10px rgba(0, 0, 0, .08); }
.ebook-detail__cover img { width: 100%; border-radius: 4px; }
.ebook-detail__meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 22px; }
.ebook-detail__meta a { font-size: 13px; }
.ebook-detail__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.ebook-detail__actions .btn { padding: 10px 26px; font-weight: 600; }
.ebook-detail__note { margin: 0; color: var(--muted); font-size: 14px; }

.ebook-related { margin-top: 64px; }

@media (max-width: 1100px) {
    .ebook-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 860px) {
    .ebook-detail { grid-template-columns: 1fr; gap: 28px; }
    .ebook-detail__cover { max-width: 300px; }
}

@media (max-width: 720px) {
    .ebook-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .ebook-grid .card__body { padding: 12px 14px 16px; }
    .ebook-grid .card__title { font-size: 14px; }
}

.ebook-btn-outline { border: 2px solid var(--maroon); color: var(--maroon); }
.ebook-btn-outline:hover { background: var(--maroon); color: var(--white); }
.ebook-detail__cover .card__placeholder { aspect-ratio: 4 / 5; border-radius: 4px; }