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1rem;font-size:.7rem}.genre-filter-tags{flex-wrap:wrap;gap:.5rem;display:flex}.genre-filter-tag{background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);padding:.5rem 1rem;font-size:.75rem;text-decoration:none;transition:all .15s}.genre-filter-tag:hover{border-color:var(--accent);color:var(--accent)}.genre-filter-tag.active{background:var(--accent);border-color:var(--accent);color:var(--bg-primary)}.books-grid-section{margin-bottom:3rem}.no-results{text-align:center;color:var(--text-muted);padding:4rem 2rem}.no-results p{margin-bottom:1rem;font-size:1rem}.back-link{color:var(--accent);text-decoration:none}.back-link:hover{text-decoration:underline}@media (max-width:768px){.book-detail-main{text-align:center;flex-direction:column;align-items:center;gap:1.5rem;padding:1.5rem}.book-page-cover{width:160px}.book-page-cover-placeholder{width:160px;height:240px}.book-page-title{font-size:1.4rem}.book-page-rating,.tags-list,.book-page-actions{justify-content:center}.books-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:.75rem}.book-search-form{flex-direction:column}.genre-filter-tags{gap:.4rem}.genre-filter-tag{padding:.4rem .75rem;font-size:.7rem}.cta-section{padding:2rem 1rem}.cta-section h2{font-size:1.25rem}}