.tree-guide-container{--bg-color:#fff;--surface-color:#f8fafc;--surface-hover:#f1f5f9;--primary-color:#3b82f6;--secondary-color:#0d9488;--accent-color:#ea580c;--text-main:#475569;--text-heading:#0f172a;--text-muted:#64748b;--border-color:#e2e8f0;--code-bg:#f8fafc;--danger:#ef4444;--warning:#f59e0b;--glass-bg:hsla(0,0%,100%,.75);--glass-border:rgba(226,232,240,.8);font-family:Inter,sans-serif;background-color:var(--bg-color);color:var(--text-main);line-height:1.6;width:100%}.dark .tree-guide-container{--bg-color:#0f172a;--surface-color:#1e293b;--surface-hover:#334155;--primary-color:#3b82f6;--secondary-color:#38bdf8;--accent-color:#fb923c;--text-main:#cbd5e1;--text-heading:#fff;--text-muted:#94a3b8;--border-color:#334155;--code-bg:#0b0f19;--danger:#f87171;--warning:#fbbf24;--glass-bg:rgba(30,41,59,.7);--glass-border:hsla(0,0%,100%,.05)}.tree-guide-container h1,.tree-guide-container h2,.tree-guide-container h3,.tree-guide-container h4,.tree-guide-container h5,.tree-guide-container h6{font-family:Poppins,sans-serif;color:var(--text-heading);margin-bottom:1rem}.tree-guide-container h1{font-size:3rem;font-weight:800;background:-webkit-linear-gradient(45deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.tree-guide-container h2{font-size:2.2rem;border-bottom:2px solid var(--border-color);padding-bottom:.5rem;margin-top:2rem}.tree-guide-container h3{font-size:1.5rem;color:var(--secondary-color);margin-top:1.5rem}.tree-guide-container p{margin-bottom:1rem;font-size:1.05rem}.tree-guide-container a{color:var(--primary-color);text-decoration:none;transition:color .3s ease}.tree-guide-container a:hover{color:var(--secondary-color)}.tree-guide-container .app-container{display:flex;max-width:1280px;margin:0 auto;position:relative;width:100%}.tree-guide-container .toc-sidebar{width:280px;height:calc(100vh - 4rem);position:sticky;top:4rem;background:var(--surface-color);border-right:1px solid var(--border-color);padding:2rem 1.5rem;overflow-y:auto;z-index:40}.tree-guide-container .toc-sidebar h3{margin-top:0;font-size:1.2rem;color:var(--text-heading)}.tree-guide-container .toc-list{list-style:none;margin-top:1rem}.tree-guide-container .toc-list li{margin-bottom:.8rem}.tree-guide-container .toc-list a{color:var(--text-muted);font-size:.95rem;display:block;padding:.3rem 0;border-radius:4px;transition:all .2s ease}.tree-guide-container .toc-list a.active,.tree-guide-container .toc-list a:hover{color:var(--secondary-color);padding-left:10px;font-weight:600;background:rgba(78,201,176,.1)}.tree-guide-container .main-content{flex:1;padding:0;width:calc(100% - 280px)}.tree-guide-container .page{min-height:100vh;padding:4rem;position:relative;border-bottom:2px dashed var(--border-color)}.tree-guide-container .glass-card{background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:12px;padding:2rem;margin-bottom:2rem;box-shadow:0 8px 32px 0 rgba(0,0,0,.03);transition:transform .3s ease,box-shadow .3s ease}.dark .tree-guide-container .glass-card{box-shadow:0 8px 32px 0 rgba(0,0,0,.2)}.tree-guide-container .glass-card:hover{transform:translateY(-5px);box-shadow:0 12px 40px 0 rgba(0,0,0,.05)}.dark .tree-guide-container .glass-card:hover{box-shadow:0 12px 40px 0 rgba(0,0,0,.3)}.tree-guide-container .term-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1.5rem;margin-top:1.5rem}.tree-guide-container .term-card{background:var(--surface-color);padding:1.5rem;border-radius:8px;border-left:4px solid var(--primary-color);transition:all .3s ease}.tree-guide-container .term-card:hover{background:var(--surface-hover);border-left-color:var(--secondary-color)}.tree-guide-container .term-card h4{color:var(--secondary-color);margin-bottom:.5rem;font-size:1.1rem}.tree-guide-container .term-card p{font-size:.9rem;margin:0;color:var(--text-muted)}.tree-guide-container .svg-container{width:100%;display:flex;justify-content:center;margin:2rem 0;padding:2rem;background:var(--surface-color);border-radius:12px;border:1px solid var(--border-color)}.tree-guide-container .node{fill:var(--surface-hover);stroke:var(--primary-color);stroke-width:3;transition:all .3s}.tree-guide-container .node:hover{fill:var(--primary-color);filter:drop-shadow(0 0 10px var(--primary-color))}.tree-guide-container .node-text{font-family:JetBrains Mono,monospace;font-size:14px;fill:var(--text-heading);font-weight:700;text-anchor:middle;dominant-baseline:central}.tree-guide-container .edge{stroke:var(--text-muted);stroke-width:2}.tree-guide-container .node-root{stroke:var(--accent-color)}.tree-guide-container .node-leaf{stroke:var(--secondary-color)}.tree-guide-container .node-balance{stroke:var(--warning)}.tree-guide-container .node-red{fill:var(--danger);stroke:#ff8a8a}.tree-guide-container .node-black{fill:#111;stroke:#555}.tree-guide-container .table-responsive{overflow-x:auto;margin:2rem 0;border-radius:8px;box-shadow:0 4px 15px rgba(0,0,0,.03)}.dark .tree-guide-container .table-responsive{box-shadow:0 4px 15px rgba(0,0,0,.1)}.tree-guide-container table{width:100%;border-collapse:collapse;text-align:left;background:var(--surface-color)}.tree-guide-container thead{background:linear-gradient(90deg,var(--surface-color),var(--surface-hover))}.tree-guide-container td,.tree-guide-container th{padding:1rem;border:1px solid var(--border-color)}.tree-guide-container th{font-family:Poppins,sans-serif;color:var(--secondary-color);font-weight:600;text-transform:uppercase;font-size:.85rem;letter-spacing:1px}.tree-guide-container tr:nth-child(2n){background-color:hsla(0,0%,100%,.02)}.tree-guide-container tr:hover td{background-color:rgba(78,201,176,.05)}.tree-guide-container pre{border-radius:8px!important;margin:1.5rem 0!important;border:1px solid var(--border-color)!important;font-family:JetBrains Mono,monospace!important;background-color:var(--code-bg)!important;overflow-x:auto!important;white-space:pre!important}.tree-guide-container .code-tabs{display:flex;gap:10px;margin-bottom:-1.5rem;position:relative;z-index:1;padding-left:1rem}.tree-guide-container .code-tab{background:var(--surface-color);border:1px solid var(--border-color);border-bottom:none;padding:.5rem 1rem;border-radius:8px 8px 0 0;color:var(--text-muted);font-size:.9rem;cursor:pointer;transition:all .2s ease}.tree-guide-container .code-tab.active{background:var(--bg-color);color:var(--primary-color);border-top:2px solid var(--primary-color)}.tree-guide-container .badge{display:inline-block;padding:.25rem .75rem;border-radius:50px;font-size:.8rem;font-weight:600;font-family:JetBrains Mono,monospace;margin-right:.5rem;margin-bottom:.5rem}.tree-guide-container .badge-easy{background:rgba(78,201,176,.2);color:#4ec9b0;border:1px solid #4ec9b0}.tree-guide-container .badge-medium{background:hsla(60,42%,76%,.2);color:#dcdcaa;border:1px solid #dcdcaa}.tree-guide-container .badge-hard{background:rgba(241,76,76,.2);color:#f14c4c;border:1px solid #f14c4c}.tree-guide-container .page-footer{text-align:center;padding:2rem 0;border-top:1px solid var(--border-color);margin-top:3rem;color:var(--text-muted);font-size:.9rem;font-weight:500;letter-spacing:1px}.tree-guide-container .page-footer i{color:var(--danger);animation:heartbeat 1.5s infinite}@keyframes heartbeat{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.tree-guide-container .fade-in{animation:fadeIn .8s ease-in-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.tree-guide-container .flex-row{display:flex;gap:2rem;flex-wrap:wrap}.tree-guide-container .flex-col{flex:1;min-width:300px}.tree-guide-container .lc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}.tree-guide-container .lc-card{background:var(--surface-color);padding:1rem;border-radius:8px;border:1px solid var(--border-color);display:flex;flex-direction:column;justify-content:space-between;transition:all .2s ease}.tree-guide-container .lc-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.05)}.dark .tree-guide-container .lc-card:hover{box-shadow:0 4px 12px rgba(0,0,0,.2)}.tree-guide-container .lc-card h4{margin-bottom:.5rem;font-size:1rem}.tree-guide-container .lc-meta{display:flex;justify-content:space-between;align-items:center;margin-top:1rem;font-size:.85rem}.tree-guide-container .lc-link{background:var(--primary-color);color:#fff!important;padding:.4rem .8rem;border-radius:4px;font-weight:600;text-align:center;transition:background-color .2s ease}.tree-guide-container .lc-link:hover{background:var(--secondary-color);color:var(--bg-color)!important}@media print{.tree-guide-container{background:#fff!important;color:#000!important;font-size:11pt}.tree-guide-container .toc-sidebar{display:none!important}.tree-guide-container .main-content{width:100%!important;padding:0!important}.tree-guide-container .page{padding:.5in!important;margin:0!important;border:none!important;page-break-after:always!important;min-height:100vh!important;background:#fff!important}.tree-guide-container h1,.tree-guide-container h2,.tree-guide-container h3,.tree-guide-container h4,.tree-guide-container h5{color:#000!important;background:none!important;-webkit-text-fill-color:#000!important}.tree-guide-container .glass-card,.tree-guide-container .svg-container,.tree-guide-container .term-card,.tree-guide-container table{background:#fff!important;border:1px solid #ccc!important;box-shadow:none!important;color:#000!important}.tree-guide-container .node{fill:#fff!important;stroke:#333!important}.tree-guide-container .node-text{fill:#000!important}.tree-guide-container .edge{stroke:#666!important}.tree-guide-container .node-red{fill:#ffe6e6!important}.tree-guide-container .node-black{fill:#e6e6e6!important}.tree-guide-container code,.tree-guide-container pre{background:#f5f5f5!important;color:#333!important;border:1px solid #ccc!important;white-space:pre-wrap!important;word-break:break-word!important}.tree-guide-container .code-tabs{display:none!important}.tree-guide-container .table-responsive{overflow:visible!important}.tree-guide-container th{background:#eee!important;color:#000!important}.tree-guide-container .page-footer{position:fixed;bottom:0;width:100%;background:#fff;padding:10px 0}.tree-guide-container a{text-decoration:none!important;color:#000!important}.tree-guide-container a:after{content:" (" attr(href) ")";font-size:.8em;color:#666}.tree-guide-container .lc-link:after{display:none}}@media (max-width:1024px){.tree-guide-container .app-container{flex-direction:column}.tree-guide-container .toc-sidebar{width:100%;height:auto;position:static;border-right:none;border-bottom:1px solid var(--border-color);padding:1.5rem}.tree-guide-container .main-content{width:100%}.tree-guide-container .page{padding:3rem 1.5rem}}@media (max-width:768px){.tree-guide-container .page{padding:2rem 1rem}.tree-guide-container h1{font-size:2.25rem}.tree-guide-container .glass-card{padding:1.25rem}.tree-guide-container .flex-row{flex-direction:column}.tree-guide-container .lc-grid,.tree-guide-container .term-grid{grid-template-columns:1fr}}