.math-ds-adv-panel{--adv-grad-tree-a: #DC6BC8;--adv-grad-tree-b: #A3147A;--adv-grad-rbt-red: #ef4444;--adv-grad-rbt-black: #1f2937;--adv-grad-trie-a: #06b6d4;--adv-grad-trie-b: #0e7490;--adv-grad-heap-a: #f59e0b;--adv-grad-heap-b: #d97706;--adv-grad-uf-a: #a855f7;--adv-grad-uf-b: #7e22ce;--adv-grad-hash-a: #10b981;--adv-grad-hash-b: #059669;--adv-grad-graph-a: #3b82f6;--adv-grad-graph-b: #1d4ed8;--adv-grad-found-a: #34d399;--adv-grad-found-b: #059669;--adv-grad-hl-a: #fbbf24;--adv-grad-hl-b: #d97706;--adv-grad-target-a:#f43f5e;--adv-grad-target-b:#be123c;--adv-tween: .55s;--adv-ease: cubic-bezier(.34, 1.4, .64, 1);--adv-node-r: 22px;--adv-h-spacing: 56px;--adv-level-h: 70px}.math-ds-adv-type-segment{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px;padding:4px}.math-ds-adv-type-segment .math-mode-segment-btn{display:flex;align-items:center;justify-content:center;padding:8px 6px;min-height:40px;line-height:1.1;text-align:center;overflow:hidden}.math-ds-adv-type-segment .adv-seg-title{font-weight:700;font-family:ui-monospace,monospace;font-size:12.5px;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}@media(max-width:1024px){.math-ds-adv-type-segment{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:520px){.math-ds-adv-type-segment{grid-template-columns:repeat(2,minmax(0,1fr))}.math-ds-adv-type-segment .adv-seg-title{font-size:12px}}.math-ds-adv-info-wrap{margin:8px 0 4px;position:relative}.math-ds-adv-info{display:none;padding:14px 16px;border-radius:var(--math-radius-md);background:linear-gradient(135deg,#c01c8e0f,#4f46e50a);border:1px solid rgba(192,28,142,.18)}.math-ds-adv-info.active{display:block}.math-ds-adv-info[data-type=trie]{background:linear-gradient(135deg,#06b6d40f,#0e74900a);border-color:#06b6d433}.math-ds-adv-info[data-type=heap]{background:linear-gradient(135deg,#f59e0b0f,#d977060a);border-color:#f59e0b33}.math-ds-adv-info[data-type=union-find]{background:linear-gradient(135deg,#a855f70f,#7e22ce0a);border-color:#a855f733}.math-ds-adv-info[data-type=hash-table]{background:linear-gradient(135deg,#10b9810f,#0596690a);border-color:#10b98133}.math-ds-adv-info[data-type=graph]{background:linear-gradient(135deg,#3b82f60f,#1d4ed80a);border-color:#3b82f633}.math-ds-adv-info[data-type=rbt]{background:linear-gradient(135deg,#1f29370f,#ef44440a);border-color:#1f293738}.adv-info-head{display:flex;gap:12px;align-items:flex-start;margin-bottom:10px}.adv-info-icon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;flex:0 0 36px;border-radius:50%;color:#fff;font-size:16px;background:linear-gradient(135deg,var(--adv-grad-tree-a),var(--adv-grad-tree-b));box-shadow:0 2px 6px #4f46e54d}.math-ds-adv-info[data-type=trie] .adv-info-icon{background:linear-gradient(135deg,var(--adv-grad-trie-a),var(--adv-grad-trie-b));box-shadow:0 2px 6px #0e74904d}.math-ds-adv-info[data-type=heap] .adv-info-icon{background:linear-gradient(135deg,var(--adv-grad-heap-a),var(--adv-grad-heap-b));box-shadow:0 2px 6px #d977064d}.math-ds-adv-info[data-type=union-find] .adv-info-icon{background:linear-gradient(135deg,var(--adv-grad-uf-a),var(--adv-grad-uf-b));box-shadow:0 2px 6px #7e22ce4d}.math-ds-adv-info[data-type=hash-table] .adv-info-icon{background:linear-gradient(135deg,var(--adv-grad-hash-a),var(--adv-grad-hash-b));box-shadow:0 2px 6px #0596694d}.math-ds-adv-info[data-type=graph] .adv-info-icon{background:linear-gradient(135deg,var(--adv-grad-graph-a),var(--adv-grad-graph-b));box-shadow:0 2px 6px #1d4ed84d}.math-ds-adv-info[data-type=rbt] .adv-info-icon{background:linear-gradient(135deg,var(--adv-grad-rbt-red),var(--adv-grad-rbt-black));box-shadow:0 2px 6px #1f29374d}.adv-info-title{font-weight:700;font-size:14px;color:var(--math-text);margin-bottom:2px}.adv-info-sub{font-size:12.5px;color:var(--math-text-muted);line-height:1.5}.adv-info-sub code{background:#c01c8e1a;color:#7d0f5e;padding:1px 5px;border-radius:3px;font-size:11.5px;font-family:ui-monospace,monospace}.adv-info-body{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center}.adv-info-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px;font-size:12.5px;line-height:1.5;color:var(--math-text)}.adv-info-list li{padding-left:0}.adv-info-list strong{color:#7d0f5e}.math-ds-adv-info[data-type=trie] .adv-info-list strong,.math-ds-adv-info[data-type=trie] .adv-info-sub code{color:#0e7490}.math-ds-adv-info[data-type=heap] .adv-info-list strong,.math-ds-adv-info[data-type=heap] .adv-info-sub code{color:#b45309}.math-ds-adv-info[data-type=union-find] .adv-info-list strong,.math-ds-adv-info[data-type=union-find] .adv-info-sub code{color:#6b21a8}.math-ds-adv-info[data-type=hash-table] .adv-info-list strong,.math-ds-adv-info[data-type=hash-table] .adv-info-sub code{color:#047857}.math-ds-adv-info[data-type=graph] .adv-info-list strong,.math-ds-adv-info[data-type=graph] .adv-info-sub code{color:#1e40af}.math-ds-adv-info[data-type=rbt] .adv-info-list strong,.math-ds-adv-info[data-type=rbt] .adv-info-sub code{color:#b91c1c}.adv-info-mini{display:flex;flex-direction:column;gap:6px;align-items:flex-end}.adv-info-legend{font-size:10.5px;color:var(--math-text-muted);font-style:italic;text-align:right;max-width:240px}.adv-mini-tree{display:flex;flex-direction:column;align-items:center;gap:5px;padding:4px 0}.adv-mini-row{display:flex;gap:8px;justify-content:center}.adv-mini-node{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;position:relative;border-radius:50%;background:linear-gradient(135deg,var(--adv-grad-tree-a),var(--adv-grad-tree-b));color:#fff;font-family:ui-monospace,monospace;font-size:11px;font-weight:700}.adv-mini-node sup{position:absolute;top:-7px;right:-6px;font-size:8px;font-weight:700;color:var(--math-text-muted);background:var(--math-surface);border:1px solid var(--math-border);border-radius:99px;padding:0 3px;line-height:1.2}.adv-mini-node.rbt-red{background:linear-gradient(135deg,#ef4444,#b91c1c)}.adv-mini-node.rbt-black{background:linear-gradient(135deg,#1f2937,#111827)}.adv-mini-spacer{display:inline-block;width:28px;height:28px}.adv-mini-trie{display:flex;flex-direction:column;align-items:center;gap:4px;padding:2px 0}.adv-trie-root{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:var(--math-surface-subtle);border:1.5px solid var(--adv-grad-trie-b);color:var(--adv-grad-trie-b);font-family:ui-monospace,monospace;font-weight:700;font-size:11px}.adv-trie-edge{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:4px;background:linear-gradient(135deg,var(--adv-grad-trie-a),var(--adv-grad-trie-b));color:#fff;font-family:ui-monospace,monospace;font-weight:700;font-size:11px;margin:1px 0}.adv-trie-branch{display:flex;flex-direction:column;align-items:center}.adv-trie-leaves{display:flex;gap:4px;margin-top:2px}.adv-trie-leaf{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border-radius:4px;background:#06b6d41a;border:1px solid var(--adv-grad-trie-b);color:var(--adv-grad-trie-b);font-family:ui-monospace,monospace;font-weight:700;font-size:11px}.adv-trie-leaf.is-word{background:linear-gradient(135deg,var(--adv-grad-trie-a),var(--adv-grad-trie-b));color:#fff;box-shadow:0 0 0 2px #06b6d440}.adv-mini-heap{display:flex;flex-direction:column;gap:6px;align-items:center}.adv-mini-heap-tree{display:flex;flex-direction:column;gap:4px;align-items:center}.adv-mini-heap-tree .adv-mini-node{background:linear-gradient(135deg,var(--adv-grad-heap-a),var(--adv-grad-heap-b))}.adv-mini-heap-root{box-shadow:0 0 0 2px #f59e0b73}.adv-mini-heap-array{display:flex;gap:2px;margin-top:2px}.adv-mini-heap-cell{min-width:26px;padding:3px 5px;background:#f59e0b1f;border-radius:3px;font-family:ui-monospace,monospace;font-size:10.5px;color:var(--math-text);font-weight:700}.adv-mini-heap-cell sup{color:var(--math-text-muted);font-size:8.5px;margin-right:1px}.adv-mini-uf{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.adv-mini-uf-group{display:flex;align-items:center;gap:3px;padding:4px 6px;border:1px dashed var(--adv-grad-uf-b);border-radius:6px;background:#a855f70f}.adv-mini-uf-root{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:linear-gradient(135deg,var(--adv-grad-uf-a),var(--adv-grad-uf-b));color:#fff;font-family:ui-monospace,monospace;font-weight:700;font-size:11px;box-shadow:0 0 0 2px #a855f74d}.adv-mini-uf-leaf{width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:#a855f71f;border:1px solid var(--adv-grad-uf-b);color:var(--adv-grad-uf-b);font-family:ui-monospace,monospace;font-weight:700;font-size:11px}.adv-mini-hash{display:flex;flex-direction:column;gap:3px}.adv-mini-hash-row{display:flex;align-items:center;gap:4px;min-height:22px}.adv-mini-hash-idx{font-family:ui-monospace,monospace;font-size:10px;color:var(--math-text-muted);min-width:14px}.adv-mini-hash-cell{min-width:22px;padding:2px 6px;background:linear-gradient(135deg,var(--adv-grad-hash-a),var(--adv-grad-hash-b));color:#fff;border-radius:3px;font-family:ui-monospace,monospace;font-size:10.5px;font-weight:700}.adv-mini-hash-arrow{color:var(--adv-grad-hash-b);font-weight:700;font-size:11px}.adv-mini-graph{position:relative;width:130px;height:100px;background:#3b82f60a;border:1px dashed rgba(59,130,246,.3);border-radius:6px}.adv-mini-graph-node{position:absolute;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;transform:translate(-50%,-50%);border-radius:50%;background:linear-gradient(135deg,var(--adv-grad-graph-a),var(--adv-grad-graph-b));color:#fff;font-family:ui-monospace,monospace;font-weight:700;font-size:10px;z-index:2}.adv-mini-graph-svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1}.adv-mini-graph-svg line{stroke:var(--adv-grad-graph-a);stroke-width:1.4;vector-effect:non-scaling-stroke}.math-ds-adv-stats{display:flex;flex-wrap:wrap;gap:6px;padding:8px 4px 10px;border-bottom:1px dashed var(--math-border);margin-bottom:8px;min-height:30px}.math-ds-adv-stats:empty{display:none}.adv-chip{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;font-size:11.5px;font-family:ui-monospace,monospace;font-weight:600;border-radius:99px;background:#c01c8e14;color:var(--math-text);border:1px solid rgba(192,28,142,.2);white-space:nowrap}.adv-chip-accent{background:linear-gradient(135deg,var(--adv-grad-tree-a),var(--adv-grad-tree-b));color:#fff;border-color:transparent}.adv-chip-good{background:#10b9811a;color:#047857;border-color:#10b98140}.adv-chip-warn{background:#f43f5e1a;color:#be123c;border-color:#f43f5e40}.adv-chip-muted{background:#64748b1a;color:var(--math-text-muted);border-color:#64748b33}.adv-chip-empty{background:transparent;color:var(--math-text-muted);border:1px dashed var(--math-border)}.math-ds-adv-viz{min-height:220px;padding:16px 8px 8px;position:relative}.math-ds-adv-viz .math-ds-tree{min-height:240px;padding-top:8px}.math-ds-adv-viz .math-ds-node{transition:left var(--adv-tween) var(--adv-ease),top var(--adv-tween) var(--adv-ease),background var(--adv-tween),box-shadow var(--adv-tween)}.math-ds-adv-viz .math-ds-node.adv-targeting{box-shadow:0 0 0 3px #f43f5e73,0 4px 12px #be123c40;z-index:3}.math-ds-adv-viz .math-ds-node.adv-found{background:linear-gradient(135deg,var(--adv-grad-found-a),var(--adv-grad-found-b))!important;box-shadow:0 0 0 3px #10b98166,0 4px 12px #0596694d;animation:adv-node-pulse var(--adv-tween) ease-out;z-index:3}.math-ds-adv-viz .math-ds-node.adv-landing{animation:adv-node-land var(--adv-tween) var(--adv-ease)}.math-ds-adv-viz .math-ds-node.adv-placeholder{background:transparent!important;color:transparent!important;border:2px dashed rgba(192,28,142,.85)!important;animation:adv-placeholder-pulse .95s ease-in-out infinite alternate}@keyframes adv-placeholder-pulse{0%{box-shadow:0 0 0 3px #c01c8e1a,0 4px 14px #4f46e51a}to{box-shadow:0 0 0 7px #c01c8e52,0 4px 18px #4f46e55c}}.math-ds-adv-viz .math-ds-node.adv-leaving{animation:adv-node-leave var(--adv-tween) forwards;pointer-events:none}.math-ds-adv-viz .math-ds-node.adv-rotating{box-shadow:0 0 0 3px #a855f773,0 4px 12px #7e22ce4d;animation:adv-node-rotate var(--adv-tween) ease-in-out}.math-ds-adv-viz .math-ds-node.adv-pivot-ring{box-shadow:0 0 0 4px #3b82f68c,0 0 0 7px #3b82f62e,0 6px 14px #2563eb66;z-index:4;animation:adv-pivot-pulse 1s ease-in-out infinite alternate}.math-ds-adv-viz .math-ds-node.adv-around-ring{box-shadow:0 0 0 4px #f59e0b8c,0 0 0 7px #f59e0b2e,0 6px 14px #d9770666;z-index:4;animation:adv-around-pulse 1s ease-in-out infinite alternate}@keyframes adv-pivot-pulse{0%{filter:brightness(1)}to{filter:brightness(1.15)}}@keyframes adv-around-pulse{0%{filter:brightness(1)}to{filter:brightness(1.15)}}.math-ds-adv-viz .math-ds-node.adv-pivot-rise{animation:adv-pivot-rise 1s cubic-bezier(.2,.85,.3,1.05);z-index:5}@keyframes adv-pivot-rise{0%{box-shadow:0 0 0 4px #3b82f68c,0 6px 14px #2563eb66}35%{box-shadow:0 0 0 9px #3b82f673,0 16px 28px #2563eb8c;filter:brightness(1.22)}to{box-shadow:0 0 0 4px #3b82f68c,0 6px 14px #2563eb66;filter:brightness(1)}}.math-ds-adv-viz svg .adv-edge-ghost{stroke:#f59e0b8c;stroke-width:2.4px;stroke-dasharray:6 4;pointer-events:none}.math-ds-adv-viz .math-ds-uf-cell.adv-compress{animation:adv-uf-compress .62s ease-out;box-shadow:0 0 0 3px #a855f78c,0 4px 14px #7e22ce66}@keyframes adv-uf-compress{0%{transform:translateY(0) scale(1);filter:brightness(1)}40%{transform:translateY(-6px) scale(1.06);filter:brightness(1.18)}to{transform:translateY(0) scale(1);filter:brightness(1)}}.math-ds-adv-viz .math-ds-graph-node.visited:not(.is-source) circle{animation:adv-graph-visit .58s ease-out;transform-origin:center}@keyframes adv-graph-visit{0%{transform:scale(.55);opacity:0}55%{transform:scale(1.18);opacity:1}to{transform:scale(1)}}.math-ds-adv-viz .math-ds-graph-edge.adv-tracing{animation:adv-graph-edge-trace .56s ease-out}@keyframes adv-graph-edge-trace{0%{stroke-dashoffset:240;stroke-dasharray:240 240}to{stroke-dashoffset:0;stroke-dasharray:240 240}}.math-ds-adv-viz .math-ds-tree .math-ds-node.adv-placeholder{background:transparent!important;color:transparent!important;border:2px dashed rgba(13,148,136,.85)!important;animation:adv-trie-placeholder-pulse .95s ease-in-out infinite alternate}@keyframes adv-trie-placeholder-pulse{0%{box-shadow:0 0 0 3px #0d94881a,0 4px 14px #0f766e1a}to{box-shadow:0 0 0 7px #0d948852,0 4px 18px #0f766e5c}}.math-ds-adv-viz .adv-root-badge{position:absolute;top:-16px;left:50%;transform:translate(-50%);font-size:9px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#a3147a;background:#eef2fff5;border:1px solid rgba(192,28,142,.4);border-radius:6px;padding:1px 5px;pointer-events:none;white-space:nowrap;z-index:5}.math-ds-adv-viz .math-ds-node.is-root .adv-root-badge,.math-ds-adv-viz .math-ds-node.adv-root-marker .adv-root-badge{color:#a3147a}.math-ds-adv-viz[data-type=heap] .adv-root-badge{color:#c2410c;background:#fff7edf5;border-color:#ea580c73}.math-ds-adv-viz[data-type=hash-table] .adv-hash-bucket[data-bucket="0"]{position:relative}.math-ds-adv-viz[data-type=hash-table] .adv-hash-bucket[data-bucket="0"]:before{content:"head";position:absolute;top:-14px;left:0;font-size:9px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#0e7490;background:#ecfefff5;border:1px solid rgba(6,182,212,.4);border-radius:6px;padding:1px 5px;pointer-events:none}.math-ds-adv-viz .adv-graph-source-badge{font-size:9px;font-weight:700;letter-spacing:.06em;fill:#1d4ed8;text-transform:uppercase;pointer-events:none}.math-ds-adv-viz .math-ds-node.rbt-red{background:linear-gradient(135deg,var(--adv-grad-rbt-red),#b91c1c)}.math-ds-adv-viz .math-ds-node.rbt-black{background:linear-gradient(135deg,var(--adv-grad-rbt-black),#111827)}.math-ds-adv-viz .math-ds-edge{transition:stroke var(--adv-tween),stroke-width var(--adv-tween),opacity var(--adv-tween)}.math-ds-adv-viz .math-ds-edge.adv-tracing{stroke:var(--adv-grad-hl-a);stroke-width:3.2}.math-ds-adv-viz .math-ds-edge.adv-found{stroke:var(--adv-grad-found-a);stroke-width:3.2}.math-ds-adv-heap-wrap{display:flex;flex-direction:column;gap:8px}.math-ds-adv-heap-tree{position:relative;width:100%;min-height:220px}.math-ds-adv-heap-array{display:flex;gap:0;padding:8px 0 4px;border-top:1px dashed var(--math-border);overflow-x:auto}.adv-heap-cell{min-width:40px;height:40px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;background:#f59e0b14;color:var(--math-text);font-family:ui-monospace,monospace;font-size:12px;font-weight:700;border:1px solid rgba(245,158,11,.2);border-right:none;transition:background var(--adv-tween),color var(--adv-tween),box-shadow var(--adv-tween);padding:2px 4px}.adv-heap-cell:last-child{border-right:1px solid rgba(245,158,11,.2)}.adv-heap-cell .adv-heap-cell-idx{font-size:9px;color:var(--math-text-muted);font-weight:500}.adv-heap-cell.is-root{background:linear-gradient(135deg,#f59e0b4d,#d9770633)}.adv-heap-cell.adv-sift{background:linear-gradient(135deg,var(--adv-grad-uf-a),var(--adv-grad-uf-b));color:#fff;box-shadow:0 0 0 2px #a855f74d inset}.adv-heap-cell.adv-found{background:linear-gradient(135deg,var(--adv-grad-found-a),var(--adv-grad-found-b));color:#fff}.math-ds-adv-heap-tree .math-ds-node{background:linear-gradient(135deg,var(--adv-grad-heap-a),var(--adv-grad-heap-b));box-shadow:0 2px 8px #d9770640}.math-ds-adv-heap-tree .math-ds-node.is-root{box-shadow:0 0 0 3px #f59e0b66,0 4px 12px #d977064d}.math-ds-adv-heap-tree .math-ds-node.adv-sift{background:linear-gradient(135deg,var(--adv-grad-uf-a),var(--adv-grad-uf-b))!important;box-shadow:0 0 0 3px #a855f773,0 4px 12px #7e22ce4d;animation:adv-node-pulse var(--adv-tween) ease-in-out}.adv-heap-empty{color:var(--math-text-muted);font-style:italic;font-size:12.5px;text-align:center;padding:30px 0}.math-ds-adv-viz[data-type=trie] .math-ds-node{background:linear-gradient(135deg,var(--adv-grad-trie-a),var(--adv-grad-trie-b));box-shadow:0 2px 6px #0e749040}.math-ds-adv-viz[data-type=trie] .math-ds-node.word-end{box-shadow:0 0 0 3px #06b6d473,0 4px 12px #0e74904d}.math-ds-adv-viz[data-type=trie] .math-ds-trie-label{fill:var(--adv-grad-trie-b);font-weight:700}.math-ds-adv-viz .math-ds-uf-array{gap:6px;padding:4px 0}.math-ds-adv-viz .math-ds-uf-cell{transition:background var(--adv-tween),border-color var(--adv-tween),box-shadow var(--adv-tween)}.math-ds-adv-viz .math-ds-uf-cell.adv-targeting{border-color:var(--adv-grad-target-a);background:#f43f5e1a;box-shadow:0 0 0 2px #f43f5e40}.math-ds-adv-viz 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