*,:before,:after{box-sizing:border-box}body{margin:0}:root{--bg:#0f172a;--surface:#1e293b;--surface2:#273549;--border:#334155;--text:#e2e8f0;--text-muted:#94a3b8;--code-bg:#0d1117;--color-init:#f59e0b;--color-push:#38bdf8;--color-check:#64748b;--color-record:#4ade80;--color-heapify:#a78bfa;--color-pop:#f87171;--color-line-active:#facc1526;--color-line-active-bd:#facc15;--sidebar-bg:#111827;--sidebar-text:#e5e7eb;--sidebar-muted:#9ca3af;--sidebar-hover:#1f2937;--sidebar-active:#38bdf8;--gap-sm:5px;--gap-md:8px;--gap-lg:14px;--font-sans:"Inter", "PingFang SC", "Helvetica Neue", Arial, sans-serif;--font-mono:"JetBrains Mono", "Fira Code", Menlo, Monaco, monospace;--fs-xs:10px;--fs-sm:11px;--fs-base:13px;--fs-md:14px;--fs-lg:15px}[data-theme=light]{--bg:#f8fafc;--surface:#fff;--surface2:#f1f5f9;--border:#e2e8f0;--text:#1e293b;--text-muted:#64748b;--code-bg:#f8fafc;--sidebar-bg:#1e293b;--color-line-active:#facc1540}@media (prefers-color-scheme:light){:root:not([data-theme=dark]){--bg:#f8fafc;--surface:#fff;--surface2:#f1f5f9;--border:#e2e8f0;--text:#1e293b;--text-muted:#64748b;--code-bg:#f8fafc;--sidebar-bg:#1e293b;--color-line-active:#facc1540}}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:var(--fs-md)}#app{height:100vh;display:flex;overflow:hidden}.sidebar{background:var(--sidebar-bg);width:260px;color:var(--sidebar-text);z-index:10;flex-direction:column;flex-shrink:0;transition:width .25s,transform .25s;display:flex;position:relative;overflow:hidden}.sidebar.collapsed{width:40px}.sidebar.collapsed .sidebar-header,.sidebar.collapsed .sidebar-search,.sidebar.collapsed .sidebar-nav,.sidebar.collapsed .sidebar-progress{display:none}.sidebar-toggle-btn{border:1px solid var(--border);color:var(--sidebar-muted);cursor:pointer;background:0 0;border-radius:4px;padding:2px 6px;font-size:14px;transition:color .15s,border-color .15s}.sidebar-toggle-btn:hover{color:var(--sidebar-text);border-color:var(--sidebar-text)}.sidebar-expand-btn{width:100%;height:40px;color:var(--sidebar-muted);cursor:pointer;background:0 0;border:none;font-size:18px;transition:color .15s;display:none}.sidebar-expand-btn:hover{color:var(--sidebar-text)}.sidebar.collapsed .sidebar-expand-btn{justify-content:center;align-items:center;display:flex}.sidebar-header{justify-content:space-between;align-items:center;padding:16px;display:flex}.sidebar-brand{font-size:16px;font-weight:700}.sidebar-search{border:1px solid var(--border);color:var(--sidebar-text);font-size:var(--fs-base);background:#ffffff0f;border-radius:6px;outline:none;width:calc(100% - 24px);margin:0 12px 8px;padding:6px 10px}.sidebar-search::placeholder{color:var(--sidebar-muted)}.sidebar-nav{flex:1;padding:0 8px 16px;overflow-y:auto}.sidebar-progress{font-size:var(--fs-sm);color:var(--sidebar-muted);border-top:1px solid #ffffff14;flex-wrap:wrap;align-items:center;gap:6px;padding:8px 16px;display:flex}.sidebar-reset-btn{border:1px solid var(--border);color:var(--sidebar-muted);cursor:pointer;background:0 0;border-radius:4px;margin-left:auto;padding:1px 6px;font-size:14px;transition:color .15s,border-color .15s}.sidebar-reset-btn:hover{color:#f87171;border-color:#f87171}.sidebar-progress-bar{background:#ffffff1a;border-radius:2px;width:100%;height:4px;overflow:hidden}.sidebar-progress-fill{background:var(--sidebar-active);border-radius:2px;height:100%;transition:width .3s}.nav-section{margin-bottom:12px}.nav-section.collapsed .nav-item{display:none}.nav-section-title{font-size:var(--fs-sm);letter-spacing:.04em;color:var(--sidebar-muted);-webkit-user-select:none;user-select:none;align-items:center;gap:4px;margin-bottom:2px;padding:4px 8px;display:flex}.nav-section-title:hover{color:var(--sidebar-text)}.nav-section-arrow{text-align:center;flex-shrink:0;width:12px;font-size:10px}.nav-item{color:var(--sidebar-text);cursor:pointer;font-size:var(--fs-base);border-radius:6px;align-items:center;gap:8px;padding:6px 10px;text-decoration:none;transition:background .15s;display:flex}.nav-item:hover{background:var(--sidebar-hover)}.nav-item.active{color:var(--sidebar-active);background:#38bdf826}.nav-item .done-dot{background:#4ade80;border-radius:50%;flex-shrink:0;width:6px;height:6px}.main-content{flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.viz{flex-direction:column;flex:1;display:flex;overflow:hidden}.top-bar{background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:12px;padding:10px 20px;display:flex}.top-bar h1{font-size:var(--fs-lg);color:var(--text);margin:0;font-weight:600}.top-bar .subtitle{color:var(--text-muted);font-size:12px}.panels{flex:1;gap:0;display:flex;overflow:hidden}.panel-divider{background:var(--border);cursor:col-resize;flex-shrink:0;width:5px;transition:background .15s;position:relative}.panel-divider:hover,.panel-divider:active{background:var(--sidebar-active)}.code-panel{background:var(--code-bg);border-right:1px solid var(--border);flex-shrink:0;width:340px;padding:16px 0;overflow:auto}.code-panel pre{font-family:var(--font-mono);font-size:var(--fs-base);margin:0;line-height:1.7}.code-line{align-items:stretch;transition:background .2s;display:flex;position:relative}.code-line.active{background:var(--color-line-active)}.code-line.active:before{content:"";background:var(--color-line-active-bd);width:3px;position:absolute;top:0;bottom:0;left:0}.line-num{text-align:right;width:36px;color:var(--text-muted);-webkit-user-select:none;user-select:none;flex-shrink:0;padding-top:1px;padding-right:10px;font-size:12px}.line-code{white-space:pre;color:#abb2bf;flex:1;padding-right:16px}.code-line.active .line-code{color:#facc15}.hl-kw{color:#c678dd;font-weight:600}.hl-builtin{color:#61afef}.hl-str{color:#98c379}.hl-num{color:#d19a66}.hl-comment{color:#5c6370;font-style:italic}.hl-self{color:#e06c75;font-style:italic}.code-line.active .hl-kw,.code-line.active .hl-builtin,.code-line.active .hl-str,.code-line.active .hl-num,.code-line.active .hl-comment,.code-line.active .hl-self{color:#facc15}.state-panel{gap:var(--gap-lg);flex-direction:column;flex:1;padding:16px;display:flex;overflow-y:auto}.section-title{font-size:var(--fs-sm);text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:8px;font-weight:600}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:12px 14px}.desc-bar{background:var(--surface);border-top:2px solid var(--border);flex-direction:column;flex-shrink:0;gap:8px;min-height:80px;padding:14px 20px;display:flex}.desc-row{flex-direction:column;align-items:flex-start;gap:10px;display:flex}.desc-jump{color:#f59e0b;background:#f59e0b1a;border-left:3px solid #f59e0b;border-radius:0 4px 4px 0;padding:4px 10px;font-size:13px;font-weight:600;line-height:1.4}.desc-text{color:var(--text);flex:1;font-size:15px;line-height:1.6}.problem-desc-section{border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0}.problem-desc-toggle{color:var(--text-muted);font-size:var(--fs-sm);cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:6px;width:100%;padding:8px 20px;font-weight:600;transition:color .15s;display:flex}.problem-desc-toggle:hover{color:var(--text)}.problem-desc-arrow{width:10px;font-size:10px}.problem-desc-body{color:var(--text);padding:0 20px 12px;font-size:13px;line-height:1.7}.problem-desc-body code{font-family:var(--font-mono);color:#7dd3fc;background:#ffffff0f;border-radius:3px;padding:1px 5px;font-size:12px}.problem-desc-body .example{border:1px solid var(--border);font-family:var(--font-mono);white-space:pre-wrap;background:#ffffff08;border-radius:6px;margin:6px 0;padding:8px 12px;font-size:12px}.testcase-bar{border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0;align-items:center;gap:8px;padding:6px 20px;display:flex}.testcase-label{font-size:var(--fs-sm);color:var(--text-muted);font-weight:600}.testcase-select{background:var(--surface2);color:var(--text);border:1px solid var(--border);font-size:var(--fs-sm);font-family:var(--font-mono);cursor:pointer;border-radius:4px;padding:3px 8px}.welcome{color:var(--text-muted);flex:1;justify-content:center;align-items:center;font-size:16px;display:flex}.hamburger{color:var(--text);cursor:pointer;background:0 0;border:none;padding:4px 8px;font-size:20px;display:none}@media (width<=768px){.sidebar{position:fixed;top:0;bottom:0;left:0;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-overlay{z-index:9;background:#00000080;display:none;position:fixed;inset:0}.sidebar.open~.sidebar-overlay,.hamburger{display:block}}.ctrl-row{align-items:center;gap:10px;display:flex}.ctrl-btn{border:1px solid var(--border);background:var(--surface2);color:var(--text);cursor:pointer;font-size:var(--fs-base);border-radius:6px;padding:6px 14px;transition:all .15s}.ctrl-btn:hover{background:var(--border)}.ctrl-btn:disabled{opacity:.35;cursor:not-allowed}.ctrl-btn.playing{color:#38bdf8;border-color:#38bdf8}.speed-select{border:1px solid var(--border);background:var(--surface2);color:var(--text);cursor:pointer;border-radius:4px;padding:4px 8px;font-size:12px}.step-counter{font-size:var(--fs-base);color:var(--text-muted);font-family:var(--font-mono);text-align:center;min-width:70px}.phase-badge{font-size:var(--fs-sm);text-transform:uppercase;letter-spacing:.04em;border-radius:4px;flex-shrink:0;padding:2px 8px;font-weight:700}.phase-init{color:#f59e0b;background:#f59e0b33}.phase-push{color:#38bdf8;background:#38bdf833}.phase-check{color:#94a3b8;background:#64748b33}.phase-record{color:#4ade80;background:#4ade8033}.phase-heapify{color:#a78bfa;background:#a78bfa33}.phase-pop{color:#f87171;background:#f8717133}.kbd-hints{align-items:center;gap:6px;margin-left:auto;display:flex}.kbd{border:1px solid var(--border);background:var(--surface2);font-size:10px;font-family:var(--font-mono);color:var(--text-muted);border-radius:4px;justify-content:center;align-items:center;min-width:22px;padding:2px 6px;display:inline-flex}.array-row{gap:var(--gap-sm);flex-wrap:wrap;align-items:flex-end;display:flex}.arr-cell{flex-direction:column;align-items:center;gap:2px;min-width:44px;transition:all .2s;display:flex}.arr-val{border:2px solid var(--border);width:44px;height:38px;font-family:var(--font-mono);background:var(--surface2);border-radius:6px;justify-content:center;align-items:center;font-size:15px;font-weight:600;transition:all .2s;display:flex}.arr-idx{font-size:var(--fs-xs);color:var(--text-muted);font-family:var(--font-mono)}.arr-pointer{font-size:var(--fs-sm);font-weight:700;font-family:var(--font-mono);white-space:nowrap;justify-content:center;align-items:center;gap:2px;height:16px;display:flex}.arr-label{font-size:var(--fs-sm);font-weight:700;font-family:var(--font-mono);justify-content:center;align-items:center;height:16px;display:flex}.arr-cell.current .arr-val{color:#7dd3fc;background:#38bdf82e;border-color:#38bdf8;box-shadow:0 0 8px #38bdf84d}.arr-cell.is-zero .arr-val{color:#475569;background:#0f172a99;border-color:#334155}.arr-cell.is-left .arr-val{border-color:#4ade80;box-shadow:0 0 6px #4ade8040}.arr-cell.is-right .arr-val{border-color:#38bdf8;box-shadow:0 0 6px #38bdf840}.arr-cell.is-left.is-right .arr-val{border-color:#a78bfa;box-shadow:0 0 8px #a78bfa4d}.arr-cell.just-swapped .arr-val{color:#fcd34d;background:#f59e0b2e;border-color:#f59e0b;box-shadow:0 0 8px #f59e0b4d}.arr-cell.is-first .arr-val{color:#fca5a5;background:#f871712e;border-color:#f87171;box-shadow:0 0 8px #f871714d}.arr-cell.is-second .arr-val{color:#7dd3fc;background:#38bdf82e;border-color:#38bdf8;box-shadow:0 0 8px #38bdf84d}.arr-cell.is-third .arr-val{color:#c4b5fd;background:#a78bfa2e;border-color:#a78bfa;box-shadow:0 0 8px #a78bfa4d}.arr-cell.is-skip .arr-val{opacity:.35;background:#64748b1f}.arr-cell.in-window .arr-val{color:#7dd3fc;background:#38bdf81f;border-color:#38bdf8}.arr-cell.is-max .arr-val{color:#4ade80;background:#4ade802e;border-color:#4ade80;box-shadow:0 0 8px #4ade804d}.arr-cell.just-pushed .arr-val{background:#38bdf840;border-color:#38bdf8}.arr-cell.is-active .arr-val{border-color:#facc15;box-shadow:0 0 8px #facc1566}.arr-cell.height-cell .arr-val{color:var(--text);background:var(--surface2);border-color:var(--border)}.arr-cell.lm-filled .arr-val{color:#fde68a;background:#fbbf2426;border-color:#fbbf24}.arr-cell.rm-filled .arr-val{color:#7dd3fc;background:#38bdf826;border-color:#38bdf8}.hashmap-table{border-collapse:collapse;width:100%;font-family:var(--font-mono);font-size:var(--fs-base)}.hashmap-table th{text-align:left;color:var(--text-muted);font-weight:600;font-size:var(--fs-sm);text-transform:uppercase;border-bottom:1px solid var(--border);padding:5px 10px}.hashmap-table td{border-bottom:1px solid #33415580;padding:6px 10px;transition:all .2s}.hashmap-table tr:last-child td{border-bottom:none}.hashmap-row.just-added td{color:#7dd3fc;background:#38bdf81f}.hashmap-row.just-added td:first-child{border-left:3px solid #38bdf8}.hashmap-row.is-need td{color:#fcd34d;background:#f59e0b1f}.hashmap-row.is-need td:first-child{border-left:3px solid #f59e0b}.hashmap-empty{color:var(--text-muted);font-style:italic;font-size:var(--fs-base);padding:4px 0}.hashmap-rows{flex-direction:column;gap:8px;display:flex}.hashmap-row-chips{border:1px solid #0000;border-radius:6px;align-items:center;gap:10px;padding:7px 10px;transition:all .2s;display:flex}.hashmap-row-chips.highlighted{background:#f59e0b1a;border-color:#f59e0b66}.hm-key{font-family:var(--font-mono);font-size:var(--fs-base);color:#f59e0b;text-align:center;letter-spacing:.06em;background:#f59e0b2e;border:1px solid #f59e0b;border-radius:20px;flex-shrink:0;min-width:48px;padding:3px 10px;font-weight:700}.hm-colon{color:var(--text-muted);font-size:var(--fs-md);flex-shrink:0}.hm-values{flex-wrap:wrap;gap:6px;display:flex}.hm-chip{font-family:var(--font-mono);background:var(--surface2);border:1px solid var(--border);color:var(--text);letter-spacing:.04em;border-radius:5px;padding:3px 10px;font-size:12px;font-weight:600;transition:all .2s}.hm-chip.just-added{color:#7dd3fc;background:#38bdf833;border-color:#38bdf8;box-shadow:0 0 6px #38bdf84d}.hm-chips-row{flex-wrap:wrap;gap:8px;display:flex}.hm-chip-block{border:1px solid var(--border);font-family:var(--font-mono);border-radius:6px;align-items:center;gap:0;font-size:12px;font-weight:600;transition:all .2s;display:flex;overflow:hidden}.hm-chip-block .hm-chip-key{background:var(--surface2);color:var(--text-muted);border-right:1px solid var(--border);padding:4px 9px}.hm-chip-block .hm-chip-val{background:var(--surface);color:var(--text);padding:4px 8px}.hm-chip-block.just-added{border-color:#38bdf8;box-shadow:0 0 6px #38bdf847}.hm-chip-block.just-added .hm-chip-key,.hm-chip-block.just-added .hm-chip-val{color:#7dd3fc;background:#38bdf826;border-right-color:#38bdf8}.hm-chip-block.diff-hit{border-color:#4ade80;box-shadow:0 0 6px #4ade8040}.hm-chip-block.diff-hit .hm-chip-key,.hm-chip-block.diff-hit .hm-chip-val{color:#4ade80;background:#4ade801f;border-right-color:#4ade80}.hm-chip-block.diff-hit.just-added .hm-chip-key,.hm-chip-block.diff-hit.just-added .hm-chip-val{color:#7dd3fc;background:#38bdf826;border-right-color:#38bdf8}.hm-chip-block.diff-hit.just-added{border-color:#38bdf8;box-shadow:0 0 6px #38bdf847}.bar-chart{align-items:flex-end;gap:6px;height:180px;padding:0 4px;display:flex;position:relative}.bar-col{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;height:100%;display:flex;position:relative}.bar-outer{flex-direction:column;justify-content:flex-end;width:100%;display:flex;position:relative}.bar-body{border-radius:4px 4px 0 0;width:100%;min-height:4px;transition:all .2s;position:relative}.bar-water{pointer-events:none;background:#38bdf838;border-top:2px solid #38bdf88c;border-radius:3px 3px 0 0;transition:height .3s;position:absolute;bottom:0;left:0;right:0}.bar-val-label{font-size:var(--fs-sm);font-family:var(--font-mono);color:var(--text-muted);text-align:center;width:100%;margin-bottom:3px}.bar-label{text-align:center;width:100%;font-size:var(--fs-xs);font-weight:700;font-family:var(--font-mono);position:absolute;bottom:-20px}.bar-label.label-L{color:#4ade80}.bar-label.label-R{color:#38bdf8}.bar-idx{font-size:var(--fs-xs);color:var(--text-muted);font-family:var(--font-mono);text-align:center;margin-top:24px}.bar-chart-wrap{align-items:flex-end;gap:8px;height:160px;padding:0 4px;display:flex}.bar-col-inner{flex-direction:column;align-items:center;width:100%;display:flex;position:relative}.bar-stack{border-radius:4px 4px 0 0;flex-direction:column;align-items:center;width:100%;display:flex;position:relative;overflow:visible}.bar-water-trap{width:100%;font-size:var(--fs-xs);color:#7dd3fc;font-family:var(--font-mono);background:#38bdf859;border:1px solid #38bdf880;border-bottom:none;border-radius:4px 4px 0 0;justify-content:center;align-items:center;font-weight:600;transition:height .3s;display:flex}.bar-solid{width:100%;font-size:12px;font-family:var(--font-mono);color:var(--text);background:#475569;border:2px solid #64748b;border-radius:4px 4px 0 0;justify-content:center;align-items:center;font-weight:700;transition:all .3s;display:flex}.bar-col.is-active .bar-solid{color:#facc15;background:#facc1533;border-color:#facc15}.bar-col-idx{font-size:var(--fs-xs);color:var(--text-muted);font-family:var(--font-mono);margin-top:2px}.heap-tree{flex-direction:column;align-items:center;gap:8px;display:flex}.heap-level{justify-content:center;gap:8px;display:flex}.heap-node{flex-direction:column;align-items:center;gap:2px;display:flex}.heap-val{border:2px solid var(--border);width:52px;height:36px;font-family:var(--font-mono);font-size:var(--fs-base);background:var(--surface2);border-radius:6px;flex-direction:column;justify-content:center;align-items:center;gap:0;font-weight:600;transition:all .2s;display:flex}.heap-val .hv-num{font-size:var(--fs-base)}.heap-val .hv-idx{color:var(--text-muted);font-size:9px}.heap-node.top>.heap-val{color:#4ade80;background:#4ade802e;border-color:#4ade80}.heap-node.expired>.heap-val{color:#fca5a5;opacity:.65;background:#f871711f;border-color:#f87171;text-decoration:line-through}.heap-node.just-pushed>.heap-val{color:#7dd3fc;background:#38bdf840;border-color:#38bdf8}.heap-node.just-popped>.heap-val{opacity:.35;border-style:dashed}.heap-empty{color:var(--text-muted);font-size:var(--fs-base);font-style:italic}.chip-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.chip{border:2px solid var(--border);background:var(--surface2);min-width:48px;height:36px;font-family:var(--font-mono);color:var(--text);border-radius:6px;justify-content:center;align-items:center;padding:0 10px;font-size:15px;font-weight:600;transition:all .2s;display:inline-flex}.chip.current-i{color:#7dd3fc;background:#38bdf82e;border-color:#38bdf8;box-shadow:0 0 8px #38bdf84d}.chip.in-streak{color:#4ade80;background:#4ade802e;border-color:#4ade80;box-shadow:0 0 8px #4ade8040}.chip.current-i.in-streak{color:#4ade80;background:#4ade8047;border-color:#4ade80}.found-box{background:#4ade801f;border:2px solid #4ade80;border-radius:8px;align-items:center;gap:12px;padding:14px 18px;display:flex}.found-box .found-icon{font-size:24px;line-height:1}.found-box .found-text{color:#4ade80;font-size:15px;font-weight:700;font-family:var(--font-mono)}.found-box .found-sub{color:var(--text-muted);margin-top:3px;font-size:12px}.legend-row{flex-wrap:wrap;gap:10px;margin-top:6px;display:flex}.legend-item{font-size:var(--fs-sm);color:var(--text-muted);align-items:center;gap:4px;display:flex}.legend-dot{border-radius:3px;width:10px;height:10px}.triplet-list{flex-direction:column;gap:6px;display:flex}.triplet-chip{color:#4ade80;font-family:var(--font-mono);font-size:var(--fs-md);background:#4ade8014;border:1px solid #22c55e;border-radius:20px;align-items:center;gap:0;padding:4px 10px;font-weight:600;transition:all .25s;display:inline-flex}.triplet-chip.fresh{background:#4ade8038;border-color:#4ade80;box-shadow:0 0 10px #4ade8059}.result-empty{color:var(--text-muted);font-size:var(--fs-base);font-style:italic}.result-row{flex-wrap:wrap;gap:5px;display:flex}.res-cell{flex-direction:column;align-items:center;gap:2px;display:flex}.res-val{border:2px solid var(--border);width:44px;height:38px;font-family:var(--font-mono);background:var(--surface2);color:var(--text-muted);border-radius:6px;justify-content:center;align-items:center;font-size:15px;font-weight:600;transition:all .2s;display:flex}.res-val.filled{color:#4ade80;background:#4ade801a;border-color:#22c55e}.res-val.fresh{background:#4ade8040;border-color:#4ade80;box-shadow:0 0 8px #4ade8059}.res-idx{font-size:var(--fs-xs);color:var(--text-muted);font-family:var(--font-mono)}.stack-container{flex-direction:column-reverse;align-items:center;gap:4px;min-height:60px;padding:8px;display:flex}.stack-item{border:2px solid var(--border);width:80px;height:34px;font-family:var(--font-mono);background:var(--surface2);border-radius:6px;justify-content:center;align-items:center;font-size:14px;font-weight:600;transition:all .2s;display:flex}.stack-item.is-top{color:#7dd3fc;background:#38bdf826;border-color:#38bdf8}.stack-item.just-pushed{color:#4ade80;background:#4ade8026;border-color:#4ade80;box-shadow:0 0 8px #4ade8040}.stack-item.just-popped{opacity:.4;border-style:dashed;border-color:#f87171}.stack-item.is-min{color:#fbbf24;background:#f59e0b1f;border-color:#f59e0b}.stack-empty{color:var(--text-muted);font-size:13px;font-style:italic}.stack-label{color:var(--text-muted);text-align:center;margin-top:2px;font-size:10px}.ll-container{flex-wrap:wrap;align-items:center;gap:0;min-height:60px;padding:12px 0;display:flex}.ll-node{align-items:center;gap:0;transition:all .2s;display:flex}.ll-val{border:2px solid var(--border);width:44px;height:38px;font-family:var(--font-mono);background:var(--surface2);color:var(--text);border-radius:6px;justify-content:center;align-items:center;font-size:15px;font-weight:600;transition:all .2s;display:flex;position:relative}.ll-arrow{background:var(--border);flex-shrink:0;width:28px;height:2px;position:relative}.ll-arrow:after{content:"";border:5px solid #0000;border-left:6px solid var(--border);position:absolute;top:-4px;right:0}.ll-null{font-family:var(--font-mono);color:var(--text-muted);border:1px dashed var(--border);border-radius:4px;padding:4px 8px;font-size:12px;font-weight:600}.ll-node.is-current .ll-val{color:#7dd3fc;background:#38bdf82e;border-color:#38bdf8;box-shadow:0 0 8px #38bdf84d}.ll-node.is-current .ll-arrow{background:#38bdf8}.ll-node.is-current .ll-arrow:after{border-left-color:#38bdf8}.ll-node.is-prev .ll-val{color:#c4b5fd;background:#a78bfa26;border-color:#a78bfa}.ll-node.is-slow .ll-val{color:#4ade80;background:#4ade802e;border-color:#4ade80;box-shadow:0 0 8px #4ade8040}.ll-node.is-fast .ll-val{color:#fbbf24;background:#f59e0b2e;border-color:#f59e0b;box-shadow:0 0 8px #f59e0b40}.ll-node.is-merged .ll-val{color:#4ade80;background:#4ade801f;border-color:#4ade80}.ll-node.is-removed .ll-val{opacity:.35;border-style:dashed;border-color:#f87171;text-decoration:line-through}.ll-node.is-swapped .ll-val{color:#fde68a;background:#facc1526;border-color:#facc15;box-shadow:0 0 8px #facc154d}.ll-node.is-reversed .ll-val{color:#67e8f9;background:#22d3ee26;border-color:#22d3ee}.ll-node.is-carry .ll-val{color:#fb923c;background:#f9731626;border-color:#f97316}.ll-cycle-arrow{width:40px;height:30px;position:relative}.ll-cycle-arrow svg{width:100%;height:100%}.ll-idx{font-size:var(--fs-xs);color:var(--text-muted);font-family:var(--font-mono);text-align:center;margin-top:2px}.ll-label{font-size:10px;font-weight:700;font-family:var(--font-mono);white-space:nowrap;position:absolute;top:-16px;left:50%;transform:translate(-50%)}.ll-label.label-slow{color:#4ade80}.ll-label.label-fast{color:#f59e0b}.ll-label.label-cur{color:#38bdf8}.ll-label.label-prev{color:#a78bfa}.bt-container{width:100%;min-height:120px;overflow-x:auto}.bt-container svg{margin:0 auto;display:block}.bt-edge{stroke:var(--border);stroke-width:2px;fill:none;transition:stroke .2s}.bt-edge.is-active{stroke:#38bdf8;stroke-width:2.5px}.bt-edge.is-path{stroke:#4ade80;stroke-width:2.5px}.bt-node-g text{font-family:var(--font-mono);fill:var(--text);text-anchor:middle;dominant-baseline:central;font-size:14px;font-weight:600;transition:fill .2s}.bt-node-g circle{r:20;fill:var(--surface2);stroke:var(--border);stroke-width:2px;transition:all .2s}.bt-node-g.is-current circle{fill:#38bdf82e;stroke:#38bdf8}.bt-node-g.is-current text{fill:#7dd3fc}.bt-node-g.is-visited circle{fill:#4ade801f;stroke:#4ade80}.bt-node-g.is-visited text{fill:#4ade80}.bt-node-g.is-target circle{fill:#f59e0b2e;stroke:#f59e0b}.bt-node-g.is-target text{fill:#fbbf24}.bt-node-g.is-left circle{fill:#38bdf81f;stroke:#38bdf8}.bt-node-g.is-right circle{fill:#a78bfa1f;stroke:#a78bfa}.bt-node-g.is-swapped circle{fill:#f871712e;stroke:#f87171}.bt-node-g.is-swapped text{fill:#fca5a5}.bt-node-g.is-null circle{fill:#0000;stroke:var(--border);stroke-dasharray:4 3;opacity:.4}.bt-node-g.is-null text{fill:var(--text-muted);opacity:.5}.bt-node-g.in-path circle{fill:#4ade8038;stroke:#4ade80;stroke-width:2.5px}.bt-node-g.in-path text{fill:#4ade80}.bt-node-g.is-root circle{stroke-width:3px}.bt-level-label{fill:var(--text-muted);font-size:11px;font-family:var(--font-mono);text-anchor:end}.bt-level-row{align-items:center;gap:6px;padding:4px 0;display:flex}.bt-level-tag{color:var(--text-muted);font-size:11px;font-family:var(--font-mono);min-width:50px}.dp-row{flex-wrap:wrap;align-items:flex-end;gap:4px;display:flex}.dp-cell{flex-direction:column;align-items:center;gap:2px;min-width:44px;display:flex}.dp-val{border:2px solid var(--border);width:44px;height:38px;font-family:var(--font-mono);background:var(--surface2);border-radius:6px;justify-content:center;align-items:center;font-size:15px;font-weight:600;transition:all .2s;display:flex}.dp-idx{font-size:var(--fs-xs);color:var(--text-muted);font-family:var(--font-mono)}.dp-cell.is-current .dp-val{color:#7dd3fc;background:#38bdf82e;border-color:#38bdf8;box-shadow:0 0 8px #38bdf84d}.dp-cell.is-updated .dp-val{color:#4ade80;background:#4ade802e;border-color:#4ade80;box-shadow:0 0 8px #4ade8040}.dp-cell.is-comparing .dp-val{color:#fbbf24;background:#f59e0b1f;border-color:#f59e0b}.dp-cell.is-optimal .dp-val{color:#c4b5fd;background:#a78bfa26;border-color:#a78bfa}.dp-cell.is-base .dp-val{color:#94a3b8;background:#64748b26;border-color:#64748b}.dp-grid{font-family:var(--font-mono);gap:3px;display:inline-grid}.dp-grid-cell{border:1px solid var(--border);background:var(--surface2);border-radius:4px;justify-content:center;align-items:center;width:44px;height:34px;font-size:13px;font-weight:600;transition:all .2s;display:flex}.dp-grid-cell.is-header{color:var(--text-muted);background:0 0;border:none;font-size:12px}.dp-grid-cell.is-current{color:#7dd3fc;background:#38bdf82e;border-color:#38bdf8;box-shadow:0 0 6px #38bdf84d}.dp-grid-cell.is-updated{color:#4ade80;background:#4ade8026;border-color:#4ade80}.dp-grid-cell.is-comparing{color:#fbbf24;background:#f59e0b1a;border-color:#f59e0b}.dp-grid-cell.is-path{color:#c4b5fd;background:#a78bfa26;border-color:#a78bfa}.matrix-grid{gap:2px;display:inline-grid}.matrix-cell{border:2px solid var(--border);width:36px;height:36px;font-family:var(--font-mono);background:var(--surface2);border-radius:4px;justify-content:center;align-items:center;font-size:14px;font-weight:600;transition:all .25s;display:flex}.matrix-cell.is-land{color:#4ade80;background:#4ade801f;border-color:#22c55e}.matrix-cell.is-water{color:#475569;background:#38bdf814;border-color:#334155}.matrix-cell.is-current{color:#fde68a;background:#facc1533;border-color:#facc15;box-shadow:0 0 8px #facc154d}.matrix-cell.is-visited{color:#c4b5fd;background:#a78bfa26;border-color:#a78bfa}.matrix-cell.is-queued{color:#7dd3fc;background:#38bdf826;border-color:#38bdf8}.matrix-cell.is-rotten{color:#fca5a5;background:#f871712e;border-color:#f87171}.matrix-cell.is-fresh{color:#4ade80;background:#4ade802e;border-color:#4ade80}.tree-path-container{width:100%;overflow-x:auto}.tree-path-container svg{margin:0 auto;display:block}.tp-node{font-family:var(--font-mono);font-size:12px}.tp-node rect{fill:var(--surface2);stroke:var(--border);stroke-width:1.5px;rx:6;transition:all .2s}.tp-node text{fill:var(--text);text-anchor:middle;dominant-baseline:central}.tp-node.is-active rect{fill:#38bdf82e;stroke:#38bdf8}.tp-node.is-active text{fill:#7dd3fc}.tp-node.is-valid rect{fill:#4ade802e;stroke:#4ade80}.tp-node.is-valid text{fill:#4ade80}.tp-node.is-pruned rect{fill:#f871711a;stroke:#f87171;stroke-dasharray:4 3;opacity:.5}.tp-node.is-pruned text{fill:#f87171;opacity:.6}.tp-edge{stroke:var(--border);stroke-width:1.5px;fill:none}.tp-edge.is-active{stroke:#38bdf8;stroke-width:2px}.tp-edge.is-pruned{stroke:#f87171;stroke-dasharray:4 3;opacity:.4}.graph-container{width:100%;min-height:150px;overflow-x:auto}.graph-container svg{margin:0 auto;display:block}.graph-node circle{r:22;fill:var(--surface2);stroke:var(--border);stroke-width:2px;transition:all .2s}.graph-node text{font-family:var(--font-mono);fill:var(--text);text-anchor:middle;dominant-baseline:central;font-size:14px;font-weight:600}.graph-node.is-current circle{fill:#38bdf82e;stroke:#38bdf8}.graph-node.is-current text{fill:#7dd3fc}.graph-node.is-visited circle{fill:#4ade801f;stroke:#4ade80}.graph-node.is-visited text{fill:#4ade80}.graph-node.is-queued circle{fill:#f59e0b26;stroke:#f59e0b}.graph-node.is-queued text{fill:#fbbf24}.graph-edge{stroke:var(--border);stroke-width:2px;fill:none;marker-end:url(#arrowhead)}.graph-edge.is-active{stroke:#38bdf8;stroke-width:2.5px}.trie-container{width:100%;overflow-x:auto}.trie-container svg{margin:0 auto;display:block}.trie-node circle{r:16;fill:var(--surface2);stroke:var(--border);stroke-width:2px;transition:all .2s}.trie-node text{font-family:var(--font-mono);fill:var(--text);text-anchor:middle;dominant-baseline:central;font-size:13px;font-weight:600}.trie-node.is-current circle{fill:#38bdf82e;stroke:#38bdf8}.trie-node.is-end circle{fill:#4ade802e;stroke:#4ade80;stroke-width:3px}.trie-node.is-end text{fill:#4ade80}.trie-edge{stroke:var(--border);stroke-width:1.5px;fill:none}.trie-edge-label{font-family:var(--font-mono);fill:var(--text-muted);text-anchor:middle;font-size:11px}.interval-timeline{min-height:60px;padding:8px 0;position:relative}.interval-bar{height:28px;font-family:var(--font-mono);border:2px solid;border-radius:6px;justify-content:center;align-items:center;font-size:12px;font-weight:600;transition:all .3s;display:flex;position:absolute}.interval-bar.is-default{color:#94a3b8;background:#64748b33;border-color:#64748b}.interval-bar.is-current{color:#7dd3fc;background:#38bdf833;border-color:#38bdf8}.interval-bar.is-merged{color:#4ade80;background:#4ade8033;border-color:#4ade80}.interval-bar.is-overlap{color:#fbbf24;background:#f59e0b33;border-color:#f59e0b}.interval-axis{background:var(--border);height:1px;position:absolute;bottom:0;left:0;right:0}.bit-row{align-items:center;gap:3px;display:flex}.bit-cell{border:1px solid var(--border);width:28px;height:28px;font-family:var(--font-mono);background:var(--surface2);border-radius:4px;justify-content:center;align-items:center;font-size:13px;font-weight:700;transition:all .2s;display:flex}.bit-cell.is-one{color:#7dd3fc;background:#38bdf826;border-color:#38bdf8}.bit-cell.is-zero{color:var(--text-muted);opacity:.5}.bit-cell.is-changed{color:#4ade80;background:#4ade8033;border-color:#4ade80;box-shadow:0 0 6px #4ade8040}.bit-label{color:var(--text-muted);font-size:11px;font-family:var(--font-mono);min-width:40px}