.books-container{max-width:1000px;min-height:100vh;margin:0 auto;padding:2rem 1.5rem}.books-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:2rem;display:grid}.book-card{flex-direction:column;justify-content:space-between;height:100%;padding:2rem;display:flex}.book-header{justify-content:space-between;align-items:flex-start;margin-bottom:1rem;display:flex}.book-icon-box{color:#3b82f6;background:#3b82f61f;border:1px solid #3b82f640;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:52px;height:64px;display:flex;box-shadow:0 8px 20px #3b82f626}.book-level-badge{background:var(--bg-elevated);border:1px solid var(--border-subtle);color:var(--text-secondary);border-radius:20px;padding:4px 10px;font-size:.75rem;font-weight:600}.book-title{color:var(--text-primary);margin:0 0 .5rem;font-size:1.25rem}.book-author{color:var(--brand-primary);margin-bottom:1rem;font-size:.9rem;font-weight:500}.book-description{color:var(--text-muted);margin:0 0 1.5rem;font-size:.9rem;line-height:1.6}.book-access-button{cursor:pointer;background:0 0;border:1px solid;border-radius:8px;justify-content:center;align-items:center;gap:.5rem;width:100%;margin-bottom:1rem;padding:.65rem;font-size:.85rem;font-weight:600;text-decoration:none;transition:all .2s;display:flex}.book-access-button.pdf{color:#3b82f6;background:#3b82f61a;border-color:#3b82f633}.book-access-button.pdf:hover{color:#fff;background:#3b82f6}.book-access-button.online{color:#10b981;background:#10b9811a;border-color:#10b98133}.book-access-button.online:hover{color:#fff;background:#10b981}.book-access-button.publisher{color:#f59e0b;background:#f59e0b1a;border-color:#f59e0b33}.book-access-button.publisher:hover{color:#fff;background:#f59e0b}.book-footer{border-top:1px solid var(--border-subtle);color:#8b5cf6;align-items:center;gap:.5rem;padding-top:.75rem;font-size:.85rem;font-weight:600;display:flex}