.rvrh-library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px}
.rvrh-book-card{display:flex;flex-direction:column;gap:8px;padding:10px;border:1px solid #e2e8f0;border-radius:12px;background:#fff;text-decoration:none;color:inherit}
.rvrh-book-title{font-weight:600}
.rvrh-reader{display:grid;grid-template-columns:260px 1fr;gap:16px;margin-top:24px}
.rvrh-reader-sidebar{border:1px solid #e2e8f0;border-radius:12px;padding:10px;background:#fff;max-height:70vh;overflow:auto}
.rvrh-reader-content{border:1px solid #e2e8f0;border-radius:12px;padding:16px;background:#fff;min-height:70vh}
.rvrh-chapter-link{padding:8px;border-radius:8px;cursor:pointer}
.rvrh-chapter-link:hover{background:#f1f5f9}