:root{--primary-color:#10b981;--accent-color:#059669;--text-color:#1f2937;--border-color:#e5e7eb;--light-bg:#f9fafb}.books-page{background-color:var(--light-bg);min-height:100vh;padding:40px 0}.page-header{text-align:center;margin-bottom:40px}.page-header h1{color:var(--text-color);margin:0 0 10px;font-size:36px;font-weight:700}.page-header p{color:#6b7280;margin:0;font-size:16px}.search-filters-bar{background-color:#fff;border-radius:8px;margin-bottom:24px;padding:20px 24px}.search-bar{margin-bottom:0}.search-input{border:1px solid var(--border-color);border-radius:8px;width:100%;padding:12px 16px;font-family:inherit;font-size:16px}.search-input:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #10b9811a}.filters-row{justify-content:flex-end;align-items:center;gap:16px;margin-top:12px;display:flex}.clear-filters-btn{border:1px solid var(--border-color);color:var(--text-color);cursor:pointer;white-space:nowrap;background-color:#fff;border-radius:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:all .2s}.clear-filters-btn:hover{background-color:var(--light-bg);border-color:#d1d5db}.books-layout{grid-template-columns:250px 1fr;gap:24px;display:grid}.books-sidebar{background-color:#fff;border-radius:8px;height:fit-content;padding:20px;position:sticky;top:90px}.filter-group{margin-bottom:30px}.filter-group:last-child{margin-bottom:0}.filter-title{text-transform:uppercase;color:var(--text-color);letter-spacing:.5px;margin:0 0 15px;font-size:14px;font-weight:700}.category-list{flex-direction:column;gap:8px;display:flex}.category-item{color:var(--text-color);text-align:left;cursor:pointer;background-color:#fff;border:1px solid #0000;border-radius:6px;padding:10px 12px;font-size:14px;transition:all .2s}.category-item:hover{background-color:var(--light-bg);border-color:var(--primary-color);color:var(--primary-color)}.category-item.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.sort-select{border:1px solid var(--border-color);cursor:pointer;background-color:#fff;border-radius:6px;width:100%;padding:10px 12px;font-family:inherit;font-size:14px}.sort-select:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #10b9811a}.books-main{background-color:#fff;border-radius:8px;padding:20px}.results-info{color:#6b7280;border-bottom:1px solid var(--border-color);margin-bottom:20px;padding-bottom:15px;font-size:14px}.results-info p{margin:0}.books-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:20px;display:grid}.pagination{border-top:1px solid var(--border-color);justify-content:center;align-items:center;gap:10px;padding:20px;display:flex}.pagination-btn{border:1px solid var(--border-color);color:var(--text-color);cursor:pointer;background-color:#fff;border-radius:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:all .2s}.pagination-btn:hover:not(:disabled){border-color:var(--primary-color);color:var(--primary-color)}.pagination-btn:disabled{opacity:.5;cursor:not-allowed}.pagination-numbers{gap:5px;display:flex}.page-number{border:1px solid var(--border-color);width:36px;height:36px;color:var(--text-color);cursor:pointer;background-color:#fff;border-radius:6px;font-size:14px;font-weight:500;transition:all .2s}.page-number:hover{border-color:var(--primary-color);color:var(--primary-color)}.page-number.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.no-results{text-align:center;padding:60px 20px}.no-results p{color:#6b7280;margin:0 0 20px;font-size:18px}.reset-btn{background-color:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:6px;padding:10px 24px;font-size:14px;font-weight:600;transition:background-color .2s}.reset-btn:hover{background-color:var(--accent-color)}.footer{background-color:var(--text-color);color:#fff;margin-top:80px;padding:60px 0 20px}.footer .container{max-width:1200px;margin:0 auto;padding:0 20px}.footer-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px;margin-bottom:40px;display:grid}.footer-grid h3,.footer-grid h4{margin:0 0 15px;font-size:16px;font-weight:700}.footer-grid p{opacity:.8;margin:0 0 10px;line-height:1.6}.footer-grid ul{margin:0;padding:0;list-style:none}.footer-grid li{margin-bottom:10px}.footer-grid a{color:inherit;opacity:.8;text-decoration:none;transition:opacity .2s}.footer-grid a:hover{opacity:1}.footer-bottom{text-align:center;opacity:.6;border-top:1px solid #ffffff1a;padding-top:30px;font-size:14px}@media (max-width:1024px){.books-layout{grid-template-columns:200px 1fr;gap:20px}.books-sidebar{position:relative;top:0}}@media (max-width:768px){.books-layout{grid-template-columns:1fr}.books-sidebar{padding:15px;position:relative;top:0}.page-header h1{font-size:28px}.books-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.search-filters-bar{padding:16px}.pagination{flex-wrap:wrap;gap:5px}.pagination-numbers{order:3;justify-content:center;width:100%}}@media (max-width:480px){.page-header h1{font-size:24px}.books-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}.search-filters-bar{padding:12px}.pagination-btn{padding:6px 12px;font-size:12px}.page-number{width:32px;height:32px;font-size:12px}}