.math-ds-asc-panel{--asc-grad-a: #DC6BC8;--asc-grad-b: #A3147A;--asc-grad-found-a: #34d399;--asc-grad-found-b: #059669;--asc-grad-targeting-a: #fb7185;--asc-grad-targeting-b: #e11d48;--asc-grad-scanning-a: #fbbf24;--asc-grad-scanning-b: #d97706;--asc-rbt-red: #ef4444;--asc-rbt-red-dark: #b91c1c;--asc-rbt-black: #1f2937;--asc-rbt-black-dark: #0f172a;--asc-node-r: 26px;--asc-level-h: 76px;--asc-h-spacing: 58px;--asc-ease: cubic-bezier(.4,0,.2,1);--asc-tween: .55s}.math-ds-asc-type-segment .math-mode-segment-btn{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 16px;line-height:1.15}.math-ds-asc-type-segment .asc-seg-title{font-weight:600;font-size:14px;font-family:ui-monospace,SF Mono,monospace}.math-ds-asc-type-segment .asc-seg-sub{font-size:11px;opacity:.75;font-weight:500}.math-ds-asc-info-wrap{margin:14px 0 4px}.math-ds-asc-info{display:none;background:linear-gradient(180deg,#818cf80f,#4f46e508);border:1px solid rgba(129,140,248,.18);border-radius:10px;padding:14px 16px}.math-ds-asc-info.active{display:block}.math-ds-asc-info .asc-info-head{display:flex;align-items:flex-start;gap:12px;margin-bottom:10px}.math-ds-asc-info .asc-info-icon{flex:0 0 auto;width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--asc-grad-a),var(--asc-grad-b));color:#fff;border-radius:8px;font-size:16px}.math-ds-asc-info .asc-info-title{font-weight:600;font-size:14px;color:var(--math-text-strong, #1f2937)}.math-ds-asc-info .asc-info-sub{font-size:12.5px;color:var(--math-text-muted, #6b7280);margin-top:2px;line-height:1.5}.math-ds-asc-info .asc-info-body{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center}.math-ds-asc-info .asc-info-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--math-text-muted, #4b5563)}.math-ds-asc-info .asc-info-list li{line-height:1.4}.math-ds-asc-info .asc-info-list li strong{color:var(--math-text-strong, #1f2937);font-weight:600}.math-ds-asc-info .asc-info-memory{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:200px}.math-ds-asc-info .asc-mini-tree{display:flex;flex-direction:column;align-items:center;gap:4px}.math-ds-asc-info .rbt-mini-row{display:flex;gap:8px}.math-ds-asc-info .rbt-mini-node{min-width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;font-size:10px;font-weight:700;color:#fff;padding:0 6px;font-family:ui-monospace,monospace;box-shadow:0 1px 3px #0000002e}.math-ds-asc-info .rbt-mini-node.rbt-red{background:linear-gradient(135deg,var(--asc-rbt-red),var(--asc-rbt-red-dark))}.math-ds-asc-info .rbt-mini-node.rbt-black{background:linear-gradient(135deg,var(--asc-rbt-black),var(--asc-rbt-black-dark))}.math-ds-asc-info .asc-info-legend{font-size:10.5px;color:var(--math-text-muted, #6b7280);text-align:center}.math-ds-asc-stats{display:flex;flex-wrap:wrap;gap:6px;padding:4px 0 10px;align-items:center}.math-ds-asc-stats:empty{display:none}.math-ds-asc-stats .asc-chip{display:inline-flex;align-items:center;gap:4px;background:var(--math-surface-2, #f3f4f6);border:1px solid rgba(0,0,0,.06);border-radius:999px;padding:3px 10px 3px 8px;font-size:11.5px;font-family:ui-monospace,monospace;line-height:1.2;white-space:nowrap}.math-ds-asc-stats .asc-chip .chip-k{color:var(--math-text-muted, #6b7280);font-size:10.5px;text-transform:uppercase;letter-spacing:.04em}.math-ds-asc-stats .asc-chip .chip-v{font-weight:600;color:var(--math-text-strong, #111827)}.math-ds-asc-stats .asc-chip.asc-chip-accent{background:linear-gradient(135deg,#818cf826,#4f46e51a);border-color:#4f46e540}.math-ds-asc-stats .asc-chip.asc-chip-accent .chip-v{color:#7d0f5e}.math-ds-asc-stats .asc-chip.asc-chip-warn{background:linear-gradient(135deg,#fb718526,#e11d481a);border-color:#e11d4840}.math-ds-asc-stats .asc-chip.asc-chip-warn .chip-v{color:#be123c}.math-ds-asc-viz{position:relative;overflow-x:clip;overflow-y:visible;min-height:240px;background:linear-gradient(180deg,#c01c8e06,#c01c8e00);border-radius:10px;padding:12px 0}.math-ds-asc-tree-scroll{overflow-x:auto;overflow-y:visible;padding:8px 8px 14px;-webkit-overflow-scrolling:touch;scroll-behavior:smooth}.math-ds-asc-tree{position:relative;margin:0 auto}.math-ds-asc-tree-svg{position:absolute;top:0;left:0;pointer-events:none;overflow:visible}.math-ds-asc-edge{stroke:#c01c8e73;stroke-width:2;transition:stroke .25s var(--asc-ease),stroke-width .25s var(--asc-ease),x1 var(--asc-tween) var(--asc-ease),y1 var(--asc-tween) var(--asc-ease),x2 var(--asc-tween) var(--asc-ease),y2 var(--asc-tween) var(--asc-ease)}.math-ds-asc-edge.rotating{stroke:var(--asc-grad-scanning-a);stroke-width:3.4;filter:drop-shadow(0 0 4px rgba(251,191,36,.55))}.math-ds-asc-edge.rotating-detach{stroke:#f43f5ef2;stroke-width:3.5;stroke-dasharray:7 5;opacity:.7;filter:drop-shadow(0 0 6px rgba(244,63,94,.7));animation:asc-edge-detach-pulse .55s ease-in-out infinite alternate}@keyframes asc-edge-detach-pulse{0%{opacity:.55;transform:none}to{opacity:.95}}.math-ds-asc-rotation-arrow{pointer-events:none;fill:none;stroke:#d97706f2;stroke-width:3.4;stroke-linecap:round;stroke-dasharray:280;stroke-dashoffset:280;filter:drop-shadow(0 0 6px rgba(251,191,36,.75));animation:asc-arrow-draw .55s var(--asc-ease) forwards}.math-ds-asc-rotation-arrow.leaving{animation:asc-arrow-fade .35s var(--asc-ease) forwards}@keyframes asc-arrow-draw{to{stroke-dashoffset:0}}@keyframes asc-arrow-fade{to{opacity:0}}.math-ds-asc-edge.edge-entering{stroke-dasharray:200;stroke-dashoffset:200;animation:asc-edge-draw var(--ds-speed) var(--asc-ease) forwards}.math-ds-asc-edge.edge-leaving{animation:asc-edge-fade var(--ds-speed) var(--asc-ease) forwards;pointer-events:none}@keyframes asc-edge-draw{to{stroke-dashoffset:0}}@keyframes asc-edge-fade{to{opacity:0}}.math-ds-asc-node{position:absolute;width:calc(var(--asc-node-r) * 2);height:calc(var(--asc-node-r) * 2);transform:translate(-50%,-50%);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:ui-monospace,SF Mono,monospace;font-size:12px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--asc-grad-a),var(--asc-grad-b));box-shadow:0 2px 6px #4f46e547,inset 0 1px #ffffff2e;border:2px solid rgba(255,255,255,.5);transition:left var(--asc-tween) var(--asc-ease),top var(--asc-tween) var(--asc-ease),transform var(--asc-tween) var(--asc-ease),background var(--asc-tween) var(--asc-ease),box-shadow var(--asc-tween) var(--asc-ease),border-color var(--asc-tween) var(--asc-ease);z-index:2;cursor:default;-webkit-user-select:none;user-select:none}.math-ds-asc-node .kv-sep{font-weight:400;opacity:.6;margin:0 1px}.math-ds-asc-node:hover{box-shadow:0 4px 12px #4f46e56b,0 0 0 4px #818cf82e}.math-ds-asc-node.rbt-red{background:linear-gradient(135deg,var(--asc-rbt-red),var(--asc-rbt-red-dark));box-shadow:0 2px 6px #ef444452,inset 0 1px #ffffff2e}.math-ds-asc-node.rbt-black{background:linear-gradient(135deg,var(--asc-rbt-black),var(--asc-rbt-black-dark));box-shadow:0 2px 6px #0f172a6b,inset 0 1px #ffffff1a}.math-ds-asc-tree .seq-scanning{background:linear-gradient(135deg,var(--asc-grad-scanning-a),var(--asc-grad-scanning-b))!important;box-shadow:0 0 0 3px #fbbf2452,0 4px 12px #d977065c;animation:asc-scan-pulse .9s ease-in-out infinite;z-index:4}.math-ds-asc-tree .seq-found{background:linear-gradient(135deg,var(--asc-grad-found-a),var(--asc-grad-found-b))!important;box-shadow:0 0 0 4px #34d39957,0 6px 16px #05966970;animation:asc-found-pulse 1.4s ease-in-out;z-index:5}.math-ds-asc-tree .seq-targeting{background:linear-gradient(135deg,var(--asc-grad-targeting-a),var(--asc-grad-targeting-b))!important;box-shadow:0 0 0 4px #fb718552,0 4px 12px #e11d486b;animation:asc-targeting-pulse .7s ease-in-out infinite;z-index:5}.math-ds-asc-tree .seq-targeting:after{content:"✕";position:absolute;top:-10px;right:-10px;width:18px;height:18px;border-radius:50%;background:#be123c;color:#fff;font-size:10px;line-height:18px;text-align:center;border:2px solid #fff;box-shadow:0 1px 3px #0000004d}.math-ds-asc-tree .seq-just-copied{animation:asc-just-copied 1s ease-out;box-shadow:0 0 0 3px #22d3ee6b,0 4px 12px #0891b252}.math-ds-asc-tree .asc-recolor-ring{box-shadow:0 0 0 4px #a78bfa8c,0 0 16px 2px #7c3aed73,0 4px 12px #7c3aed52!important;z-index:5}.math-ds-asc-tree .asc-rotate-ring{box-shadow:0 0 0 4px #f59e0bb3,0 0 22px 4px #d977068c,0 4px 14px #d9770673!important;z-index:5;animation:asc-around-pulse 1s ease-in-out infinite alternate}.math-ds-asc-tree .asc-pivot-ring{box-shadow:0 0 0 5px #3b82f6c7,0 0 22px 4px #2563eb8c,0 4px 14px #1d4ed880!important;z-index:6;animation:asc-pivot-pulse 1s ease-in-out infinite alternate}@keyframes asc-pivot-pulse{0%{filter:brightness(1)}to{filter:brightness(1.18)}}@keyframes asc-around-pulse{0%{filter:brightness(1)}to{filter:brightness(1.15)}}.asc-cursor{position:absolute;left:0;top:0;width:calc(var(--asc-node-r) * 2 + 10px);height:calc(var(--asc-node-r) * 2 + 10px);pointer-events:none;z-index:7;transform:translate(-50%,-50%);transition:left var(--asc-tween) var(--asc-ease),top var(--asc-tween) var(--asc-ease),opacity .25s var(--asc-ease);opacity:0}.asc-cursor:before{content:"";position:absolute;inset:0;border-radius:50%;border:2.5px dashed rgba(192,28,142,.85);animation:asc-cursor-spin 4s linear infinite;box-shadow:0 0 14px #c01c8e73}.asc-cursor:after{content:"▾";position:absolute;top:-22px;left:50%;transform:translate(-50%);color:#7d0f5e;font-size:16px;font-weight:800;text-shadow:0 1px 2px rgba(255,255,255,.8);animation:asc-cursor-bob 1s ease-in-out infinite}.asc-cursor.visible{opacity:1}@keyframes asc-cursor-spin{to{transform:rotate(360deg)}}@keyframes asc-cursor-bob{0%,to{transform:translate(-50%)}50%{transform:translate(-50%,-3px)}}.math-ds-asc-tree .seq-landing{animation:asc-node-land .6s var(--asc-ease)}.math-ds-asc-tree .seq-leaving{animation:asc-node-leave .5s var(--asc-ease) forwards;pointer-events:none;z-index:1}@keyframes asc-node-land{0%{transform:translate(-50%,-50%) scale(.3);opacity:0}60%{transform:translate(-50%,-50%) scale(1.18);opacity:1}to{transform:translate(-50%,-50%) scale(1);opacity:1}}@keyframes asc-node-leave{0%{transform:translate(-50%,-50%) scale(1);opacity:1}to{transform:translate(-50%,-50%) scale(.4);opacity:0}}@keyframes asc-scan-pulse{0%,to{box-shadow:0 0 0 3px #fbbf2452,0 4px 12px #d977065c}50%{box-shadow:0 0 0 6px #fbbf2485,0 4px 16px #d9770680}}@keyframes asc-found-pulse{0%{transform:translate(-50%,-50%) scale(1)}30%{transform:translate(-50%,-50%) scale(1.18)}60%{transform:translate(-50%,-50%) scale(.96)}to{transform:translate(-50%,-50%) scale(1)}}@keyframes asc-targeting-pulse{0%,to{box-shadow:0 0 0 4px #fb718552,0 4px 12px #e11d486b}50%{box-shadow:0 0 0 7px #fb718585,0 4px 14px #e11d489e}}@keyframes asc-just-copied{0%{box-shadow:0 0 0 3px #22d3ee99,0 4px 12px #0891b280}to{box-shadow:0 2px 6px #4f46e547}}.math-ds-asc-step-banner{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#818cf838,#4f46e529);border:1.5px solid rgba(79,70,229,.36);color:#7d0f5e;border-radius:999px;padding:7px 16px;font-size:13px;font-family:ui-monospace,monospace;font-weight:600;margin:0 0 10px 12px;box-shadow:0 4px 12px #4f46e52e;animation:asc-banner-fade .25s var(--asc-ease)}.math-ds-asc-step-banner code{background:#fff9;padding:1px 6px;border-radius:6px;font-weight:700;margin:0 1px}.math-ds-asc-step-banner.asc-step-rotation{background:linear-gradient(135deg,#fbbf2438,#d9770624);border-color:#d9770652;color:#b45309}.math-ds-asc-step-banner.asc-step-recolor{background:linear-gradient(135deg,#a78bfa38,#7c3aed24);border-color:#7c3aed52;color:#6d28d9}@keyframes asc-banner-fade{0%{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:translateY(0)}}.math-ds-asc-empty{color:var(--math-text-muted, #6b7280);font-size:13px;padding:28px 20px;text-align:center}.math-ds-asc-empty strong{color:var(--math-text-strong, #1f2937)}.math-ds-asc-narrator{margin-top:10px;padding:10px 14px 12px;border-left:3px solid #C01C8E;background:linear-gradient(180deg,#c01c8e0d,#c01c8e00);border-radius:0 8px 8px 0;font-size:12.5px;line-height:1.5}.math-ds-asc-narrator:empty{display:none}.math-ds-asc-narrator .asc-narr-title{font-family:ui-monospace,SF Mono,monospace;font-weight:600;color:#7d0f5e;font-size:12px;margin-bottom:4px}.math-ds-asc-narrator .asc-narr-body{color:var(--math-text-default, #374151);margin-bottom:4px}.math-ds-asc-narrator .asc-narr-body strong{color:var(--math-text-strong, #1f2937)}.math-ds-asc-narrator .asc-narr-impact{color:var(--math-text-muted, #6b7280);font-size:11.5px;display:flex;align-items:center;gap:6px}.math-ds-asc-narrator .asc-narr-impact i{color:#c01c8e}.math-ds-asc-progress{margin-top:10px;padding:8px 12px;background:linear-gradient(135deg,#818cf81a,#4f46e50d);border:1px solid rgba(79,70,229,.18);border-radius:8px;transition:opacity .42s var(--asc-ease)}.math-ds-asc-progress[hidden]{display:none}.math-ds-asc-progress .asc-progress-head{display:flex;justify-content:space-between;align-items:center;font-size:11.5px;font-family:ui-monospace,monospace;margin-bottom:5px}.math-ds-asc-progress .asc-progress-label{color:#7d0f5e;font-weight:600}.math-ds-asc-progress .asc-progress-counter{color:var(--math-text-muted, #6b7280)}.math-ds-asc-progress .asc-progress-track{height:4px;background:#4f46e51f;border-radius:999px;overflow:hidden}.math-ds-asc-progress .asc-progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--asc-grad-a),var(--asc-grad-b));transition:width .3s var(--asc-ease);border-radius:999px}.math-ds-asc-panel.is-busy .math-ds-asc-actions,.math-ds-asc-panel.is-busy #ascRandomBtn,.math-ds-asc-panel.is-busy .math-ds-asc-type-segment{pointer-events:none;opacity:.55}.math-ds-asc-actions .math-btn-primary{background:linear-gradient(135deg,var(--asc-grad-a),var(--asc-grad-b));border:none;color:#fff}.math-ds-asc-actions .math-btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}@media(max-width:640px){.math-ds-asc-panel{--asc-node-r: 22px;--asc-level-h: 64px;--asc-h-spacing: 48px}.math-ds-asc-info .asc-info-body{grid-template-columns:1fr;gap:10px}.math-ds-asc-info .asc-info-memory{min-width:0;order:2}.math-ds-asc-stats{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;-webkit-mask-image:linear-gradient(to right,#000 calc(100% - 24px),transparent);mask-image:linear-gradient(to right,#000 calc(100% - 24px),transparent)}.math-ds-asc-type-segment .math-mode-segment-btn{min-height:44px;padding:6px 10px}.math-ds-asc-type-segment .asc-seg-sub{font-size:10px}.math-ds-asc-node{font-size:11px}}@media(max-width:380px){.asc-rand-text-long{display:none}}@media(prefers-reduced-motion:reduce){.math-ds-asc-node,.math-ds-asc-edge,.math-ds-asc-tree .seq-scanning,.math-ds-asc-tree .seq-found,.math-ds-asc-tree .seq-targeting,.math-ds-asc-tree .seq-just-copied,.math-ds-asc-tree .seq-landing,.math-ds-asc-tree .seq-leaving,.math-ds-asc-tree .asc-recolor-ring,.math-ds-asc-tree .asc-rotate-ring,.math-ds-asc-tree .asc-pivot-ring,.asc-cursor,.asc-cursor:before,.asc-cursor:after,.math-ds-asc-step-banner,.math-ds-asc-progress .asc-progress-fill{animation:none!important;transition-duration:0ms!important}}