:root{--bg:#0f1117;--bg-card:#1a1d27;--bg-card-hover:#222633;--border:#2a2e3d;--text:#e4e6ef;--text-muted:#8b8fa3;--accent:#6c8cff;--accent-hover:#8ba4ff;--green:#4ade80;--yellow:#facc15;--red:#f87171;--orange:#fb923c}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}.app{min-height:100vh;display:flex}.sidebar{background:var(--bg-card);border-right:1px solid var(--border);flex-shrink:0;width:220px;padding:20px 0}.sidebar-title{text-transform:uppercase;letter-spacing:1.5px;color:var(--accent);border-bottom:1px solid var(--border);margin-bottom:10px;padding:0 20px 20px;font-size:14px;font-weight:700}.sidebar-nav{list-style:none}.sidebar-nav li a{color:var(--text-muted);border-left:3px solid #0000;padding:10px 20px;font-size:14px;text-decoration:none;transition:all .15s;display:block}.sidebar-nav li a:hover,.sidebar-nav li a.active{color:var(--text);border-left-color:var(--accent);background:#6c8cff14}.main{flex:1;max-width:1200px;padding:30px 40px}.page-title{color:var(--text);margin-bottom:24px;font-size:28px;font-weight:700}.stats-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-bottom:30px;display:grid}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:20px}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;font-size:12px}.stat-value{color:var(--accent);font-size:28px;font-weight:700}.stat-value.green{color:var(--green)}.stat-value.yellow{color:var(--yellow)}.stat-value.red{color:var(--red)}.section{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;margin-bottom:20px;padding:24px}.section-title{color:var(--text);margin-bottom:16px;font-size:16px;font-weight:600}.chart-bar{align-items:center;gap:12px;margin-bottom:10px;display:flex}.chart-bar-label{width:120px;color:var(--text-muted);text-align:right;flex-shrink:0;font-size:13px}.chart-bar-track{background:#ffffff0a;border-radius:4px;flex:1;height:24px;overflow:hidden}.chart-bar-fill{border-radius:4px;height:100%;transition:width .3s}.chart-bar-fill.accent{background:var(--accent)}.chart-bar-fill.green{background:var(--green)}.chart-bar-fill.yellow{background:var(--yellow)}.chart-bar-fill.red{background:var(--red)}.chart-bar-fill.orange{background:var(--orange)}.chart-bar-value{width:60px;color:var(--text-muted);flex-shrink:0;font-size:13px}.tag-list,.author-list{flex-wrap:wrap;gap:8px;display:flex}.tag{color:var(--accent);background:#6c8cff1a;border:1px solid #6c8cff33;border-radius:16px;padding:4px 10px;font-size:12px;display:inline-block}.tag .tag-count{color:var(--text-muted);margin-left:4px}.search-bar{flex-wrap:wrap;gap:12px;margin-bottom:20px;display:flex}.search-input{background:var(--bg);border:1px solid var(--border);min-width:200px;color:var(--text);border-radius:6px;outline:none;flex:1;padding:10px 14px;font-size:14px}.search-input:focus{border-color:var(--accent)}.filter-select{background:var(--bg);border:1px solid var(--border);color:var(--text);cursor:pointer;border-radius:6px;outline:none;min-width:150px;padding:10px 14px;font-size:14px}.book-list{flex-direction:column;gap:12px;display:flex}.book-card{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:16px 20px;transition:all .15s}.book-card:hover{border-color:var(--accent);background:var(--bg-card-hover)}.book-title{color:var(--text);margin-bottom:6px;font-size:15px;font-weight:600}.book-meta{color:var(--text-muted);gap:12px;font-size:12px;display:flex}.book-meta span{background:#ffffff0d;border-radius:4px;padding:2px 8px}.quality-badge{text-transform:uppercase;border-radius:4px;padding:2px 8px;font-size:11px;font-weight:600;display:inline-block}.quality-badge.high{color:var(--green);background:#4ade8026}.quality-badge.medium{color:var(--yellow);background:#facc1526}.quality-badge.low{color:var(--red);background:#f8717126}.pagination{justify-content:center;gap:8px;margin-top:24px;display:flex}.pagination button{background:var(--bg-card);border:1px solid var(--border);color:var(--text);cursor:pointer;border-radius:6px;padding:8px 14px;font-size:13px}.pagination button:hover:not(:disabled){border-color:var(--accent)}.pagination button:disabled{opacity:.3;cursor:not-allowed}.pagination button.active{background:var(--accent);border-color:var(--accent);color:#fff}.loading{text-align:center;color:var(--text-muted);padding:60px;font-size:14px}.error{text-align:center;color:var(--red);padding:60px;font-size:14px}.tag-cloud{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.quality-section{margin-top:10px}.two-col{grid-template-columns:1fr 1fr;gap:20px;display:grid}@media (width<=768px){.sidebar{width:60px;padding:10px 0}.sidebar-title{display:none}.sidebar-nav li a{text-align:center;border-bottom:3px solid #0000;border-left:none;padding:10px;font-size:12px}.sidebar-nav li a:hover,.sidebar-nav li a.active{border-left-color:#0000;border-bottom-color:var(--accent)}.main{padding:20px}.two-col{grid-template-columns:1fr}}.filter-select option{text-overflow:ellipsis;white-space:nowrap;max-width:200px;overflow:hidden}.book-authors{color:var(--text-muted);margin-bottom:4px;font-size:13px}