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/* Modul pengantar: ilustrasi, diagram, dan uraian kasus dalam alur editorial. */
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/* Huruf biasa dan konektor dengan titik awal/akhir yang mengikuti simpul. */
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@media(max-width:1250px){.intro-flow .intro-flow-track{gap:56px}.intro-flow-transfer{width:56px;padding:0 3px}.intro-flow-transfer .intro-transfer-horizontal{width:50px}.intro-flow-node{padding:12px 9px;height:174px}.intro-flow-node>strong{font-size:11px!important}.intro-flow-node>small{font-size:9px}.intro-flow-transfer{top:45px}.intro-flow-transfer>span{font-size:8px;min-height:31px}}
@media(max-width:1000px){.intro-flow .intro-flow-track{grid-template-columns:minmax(0,1fr);gap:81px}.intro-flow .intro-flow-track>li{margin:0}.intro-flow-node{height:auto;min-height:115px;padding:15px 17px}.intro-flow-node>strong{font-size:13px!important}.intro-flow-node>small{font-size:11px}.intro-flow-transfer{left:0;top:100%;width:100%;height:81px;padding:6px 0;gap:4px}.intro-flow-transfer>span{min-height:0;font-size:10px;line-height:1.7}.intro-flow-transfer .intro-transfer-horizontal{display:none}.intro-flow-transfer .intro-transfer-vertical{display:block;width:18px;height:36px}.intro-flow-plot.has-feedback{padding:0 34px 0 0}.intro-flow-plot.has-cross-edges{padding:0 34px}.intro-flow-key{margin-top:20px}.intro-toc{grid-template-columns:repeat(2,minmax(0,1fr))}}
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/* Search lessons: scientific notation, explicit directed edges, and editable teaching models. */
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svg{display:block;width:100%;min-width:550px;height:auto;max-height:none;font-family:inherit}.search-graph-scroll path{stroke:#62869c;stroke-width:1.8;fill:none}.search-graph-scroll defs path{fill:#62869c;stroke:none}.search-graph-scroll .search-edge.solution path{stroke:#31866a;stroke-width:3}.search-graph-scroll .search-edge rect{fill:#f5fafc;stroke:#e1ebf1;stroke-width:.8}.search-graph-scroll .search-edge text{font-size:12px;fill:#395c73;font-weight:600}.search-node circle{fill:#fff;stroke:#9cb7c8;stroke-width:1.6}.search-node.waiting circle{fill:#cfebfb;stroke:#5094bb}.search-node.current circle{fill:#f8c6b5;stroke:#d56d4e}.search-node.closed circle{fill:#cce8dc;stroke:#65a38c}.search-node text{font-size:16px;fill:#294553;font-weight:600}.search-node .search-place{font-size:11px;font-weight:400}.search-node .search-h{font-size:11px;fill:#7f6485;font-weight:500}.search-legend{display:flex;flex-wrap:wrap;gap:8px 17px;font-size:10px;color:#527487;margin:14px 0 22px}.search-event{padding:16px;border-left:3px solid #84aec8;background:#e6f1f8;font-size:12px!important;min-height:54px}.search-lists{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:24px;margin:24px 0}.search-lists h3{font-size:13px;margin:0 0 12px}.search-lists>div{min-width:0}.search-lists p{font-size:12px;color:#547286}.search-lists .learn-table th,.search-lists .learn-table td{padding:8px 10px;font-size:11px}.search-demo-note{font-size:11px!important;color:#607887}.search-prose{padding:12px 0 18px;max-width:850px;scroll-margin-top:105px}.search-prose .search-section-number{color:#93afc1;font-size:22px;margin:18px 0 8px;font-weight:500}.search-prose h2{font-size:24px;margin:0 0 16px;line-height:1.45}.search-prose>p:not(.search-section-number){line-height:1.95;color:#526f80}.search-tree,.search-puzzle,.search-river{margin:28px 0 48px;padding:27px;background:#f6f9fb;border-top:2px solid #b4d1e3;border-radius:0 0 10px 10px}.search-tree h3,.search-puzzle 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h4{font-size:11px;margin:0 0 13px;color:#476447}.search-river-bank>div{display:flex;gap:5px;flex-wrap:wrap}.search-river-bank span{background:#e0ebf5;border:1px solid #b4cfe1;border-radius:5px;font-size:10px;padding:5px 7px;line-height:1.5}.search-river-bank .parcel{background:#f8e6ce;border-color:#d4bc9b}.search-river-water{background:linear-gradient(#d0ebfb,#a9cfe7);display:grid;place-items:center;text-align:center;padding:10px;color:#345d78;font-size:11px}.search-river [role=status]{font-size:12px;color:#456a80}.search-practice header>p{color:#607887}.search-exercise{padding:27px 0 35px;border-top:1px solid #dce8ef;margin-top:28px}.search-exercise-number{font-size:11px!important;color:#b45239}.search-exercise>h3{font-size:21px;margin:8px 0 15px}.search-exercise>p{color:#5b778a;overflow-wrap:anywhere}.search-exercise .learn-question{border:0;padding:0;background:none;margin-top:22px}.search-exercise .learn-question legend{font-size:14px;line-height:1.85}.search-exercise .learn-question label{font-size:12px;overflow-wrap:anywhere}.search-exercise .learn-reference{margin:22px 0 0}.search-exercise .learn-reference li{font-size:12px;line-height:1.9;margin:12px 0}.search-walking{padding:16px;margin:24px 0;background:#f4f8fb}.search-walking svg{width:100%;max-width:650px}.search-walking figcaption{font-size:11px;color:#5b788b}.search-puzzle-sequence{display:flex;flex-wrap:wrap;gap:18px;align-items:flex-end}.search-puzzle-sequence>p{font-size:11px}.search-lesson #search-concepts,.search-lesson #search-puzzle-demo{scroll-margin-top:105px}
@media(max-width:800px){.search-opening{padding-top:0}.search-opening h2{font-size:27px!important}.search-workshop{padding:18px 14px;margin:26px 0 40px}.search-workshop h2{font-size:22px}.search-toolbar{gap:14px;align-items:start}.search-toolbar label{flex:1 1 135px}.search-controls>span{width:100%;margin:4px 0}.search-lists{grid-template-columns:1fr;gap:22px}.search-prose h2{font-size:22px}.search-tree,.search-puzzle,.search-river{padding:20px 14px}.search-puzzle-boards{gap:18px}.search-board{width:145px}.search-equation h3{font-size:14px}.learn-formula:has(math){font-size:18px}.search-river [data-river-scene]{grid-template-columns:1fr 82px 1fr}.search-river-bank{padding:10px}.search-river-bank span{font-size:9px;padding:4px 5px}.search-exercise>h3{font-size:20px}.search-puzzle-sequence{display:block}.search-puzzle-sequence>p{margin-bottom:24px}}
.search-legend .waiting{color:#387ca5}.search-legend .current{color:#ba6047}.search-legend .closed{color:#337c61}.search-graph-scroll defs marker[id$="-solution"] path{fill:#31866a}

/* Expandable lesson outlines use the same anchors as the rendered lesson. */
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@media(max-width:800px){.learn-main [id]{scroll-margin-top:84px}.learn-nav-group{margin-left:35px}.learn-curriculum .learn-subnav a{font-size:12px;padding:10px 12px}.search-advanced-case header h2{font-size:24px}.case-inputs{gap:16px}.case-inputs label{width:100%}.case-inputs .case-checkbox{width:auto}.case-network{width:100%;margin-bottom:8px}.case-telemetry{gap:8px}.case-telemetry span{font-size:10px}.case-telemetry strong{font-size:13px}.case-grid{grid-template-columns:repeat(4,minmax(0,60px));max-width:100%}.case-cell{height:60px}.search-advanced-case{margin-bottom:50px}.case-result{padding:13px;font-size:12px}}
html:has(body.learning-body){scroll-padding-top:0}
.learn-module-nav>summary>.learn-nav-toggle{display:grid;place-items:center;width:30px;min-height:44px;flex:none}.learn-nav-toggle .learn-expand-icon{width:15px;height:15px;margin:0;pointer-events:none}.learn-module-nav[open]>summary .learn-nav-toggle .learn-expand-icon{transform:rotate(180deg)}
.learn-nav-toggle{border:0;background:transparent;color:#708798;padding:0;cursor:pointer;border-radius:6px}.learn-nav-toggle:hover{background:#e7f0f6}
@media(min-width:801px){.learn-curriculum{scrollbar-gutter:stable;padding-right:20px}}
@media(max-width:800px){.learn-curriculum nav{scrollbar-gutter:stable;padding-right:22px}}
.case-network{height:auto}.learn-main section[tabindex="-1"]:focus,.learn-main div[tabindex="-1"]:focus{outline:none}
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/* Learning workspace: native controls, a measured sticky toolbar, and quiet reading surfaces. */
.learning-body{--ink:#172f43;--learn-toolbar-top:76px;--learn-anchor-offset:205px}
.learn-curriculum{background:#f1f6fa;padding-top:30px}
.learn-rail-heading h2{font-size:19px;line-height:1.4;letter-spacing:-.55px;color:#172f43}
.learn-rail-heading{padding-bottom:19px}.learn-rail-heading p{display:none}
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.learn-learning-toolbar{position:sticky;top:var(--learn-toolbar-top);z-index:20;background:#fff;padding-top:10px;padding-bottom:14px;margin:0 0 24px}
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.learn-main [id]{scroll-margin-top:var(--learn-anchor-offset)}
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@media(max-width:800px){
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@media(prefers-reduced-motion:no-preference){.learn-tabs button,.learn-focus-button,.learn-chapter-bar button{transition:background-color .15s,border-color .15s}}

/* Keep the real directed graph and its frontier together in the first experiment. */
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@media(max-width:1100px){.search-result-grid{grid-template-columns:minmax(0,1fr)}.search-result-grid .search-lists{display:grid;grid-template-columns:1fr 1fr}.search-result-grid .search-event{grid-row:auto}.search-workshop>header h2{font-size:21px}}
@media(max-width:800px){.search-workshop{padding:18px 14px;margin-top:0}.search-result-grid .search-lists{grid-template-columns:1fr;gap:17px}.search-interaction-controls .search-controls{min-width:0;flex-basis:100%;gap:7px}.search-workshop .search-controls button{font-size:11px;padding:10px 11px}.search-interaction-controls .search-controls span{flex-basis:100%}.search-workshop>header h2{font-size:21px}.search-workshop .search-graph-scroll svg{min-width:540px}.search-result-grid{gap:17px}}

/* Older lesson-specific IDs must not override the measured sticky offset. */
.learning-body .learn-main [id]{scroll-margin-top:var(--learn-anchor-offset)!important}

@media(min-width:801px){.learn-curriculum .learn-subnav a{font-size:12px}.learn-nav-group>summary{font-size:12px}}
/* Heuristic workshop: shared learning palette, precise vector graph, and honest code runtimes. */
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pre{max-height:560px;overflow:auto;background:#fff;padding:16px;border:1px solid #dbe7ef;border-radius:7px;white-space:pre;tab-size:4}.hc-code-section .learn-button{font-size:12px}.heuristic-pseudocode{margin:24px 0 45px}.heuristic-pseudocode>section{border-top:1px solid #d9e6ee;padding-top:28px;margin-top:30px}.heuristic-pseudocode-lines{background:#f3f8fc;border:1px solid #dbe7ef;border-radius:9px;padding:18px 15px 18px 43px;overflow:auto}.heuristic-pseudocode-lines li{white-space:pre;font-size:12px;line-height:2.05;padding-left:10px}.heuristic-pseudocode-lines li::marker{color:#8aa3b5}.heuristic-pseudocode dl>div{margin:19px 0}.heuristic-pseudocode dt{font-size:14px;font-weight:650}.heuristic-pseudocode dd{margin:5px 0 0;font-size:14px;line-height:1.85;color:#597488}.hlab-settings{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:22px 0}.hlab-method{font-size:12px!important;background:#eff5fa;border-left:3px solid #80a7c1;padding:14px}.hlab-workspace{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(240px,1fr);gap:20px;margin-top:24px}.hlab-workspace>div,.hlab-output{min-width:0}.hlab-editor{width:100%;min-height:530px;resize:vertical;padding:20px;border:1px solid #c9dce9;border-radius:0 0 7px 7px;background:#f8fbfe;color:#244961;font:12px/1.85 ui-monospace,SFMono-Regular,Consolas,monospace!important;tab-size:4;white-space:pre;overflow:auto}.hlab-actions{display:flex;flex-wrap:wrap;gap:8px;margin:15px 0}.hlab-output{border:1px solid #dce7ef;border-radius:9px;padding:20px;background:#f5f9fc}.hlab-output pre{max-height:650px;min-height:180px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;color:#345c76}.hlab-output h3{font-size:16px}.hlab-output h4{font-size:14px}.hlab-output p{font-size:12px}.hlab .learn-reference pre{max-height:550px;overflow:auto;background:#f6f9fc;padding:20px}.hlab select:disabled{background:#f0f4f7;color:#8fa2b0}
@media(max-width:1150px){.hc-editor-layout{grid-template-columns:minmax(0,1fr)}.hc-inspector{display:grid;grid-template-columns:1fr 1fr;gap:22px}.hc-inspector section+section{margin:0;padding:0;border-top:none}.hlab-workspace{grid-template-columns:minmax(0,1fr)}.hlab-output pre{min-height:120px}.hc-board{min-width:650px}}
@media(max-width:800px){.hc-experience h2,.hlab h2,.heuristic-pseudocode h2{font-size:22px}.hc-experience p,.hlab p,.heuristic-pseudocode p{font-size:13px}.hc-settings{gap:10px;grid-template-columns:1fr 1fr}.hc-settings>label:first-child{grid-column:1/-1}.hc-inspector{grid-template-columns:minmax(0,1fr);padding:17px}.hc-inspector section+section{padding-top:20px;border-top:1px solid #d6e4ed}.hc-code-comparison,.hc-frontiers{grid-template-columns:minmax(0,1fr)}.hc-board-scroll{max-height:450px}.hc-file-tools>span{margin:0;flex-basis:100%}.hlab-settings{grid-template-columns:1fr 1fr;gap:12px}.hlab-editor{min-height:420px;padding:15px;font-size:11px!important}.hc-experience button,.hlab button{font-size:11px;padding:10px 11px;min-height:42px}.hc-playback-controls>label{flex-basis:100%}.hc-summary{padding:17px}.hc-relaxations{padding-left:13px}.hc-experience .learn-formula math{font-size:18px}.hc-tools{gap:6px}.hc-tools .hc-zoom-label{margin-left:0}.learning-body:has([data-tab=canvas]) .learn-tabs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));overflow:visible;gap:4px}.learning-body:has([data-tab=canvas]) .learn-tabs button{padding:9px 5px;font-size:11px;white-space:normal;min-width:0;line-height:1.5}.learning-body:has([data-tab=canvas]) .learn-tabs button svg{display:none}.heuristic-pseudocode-lines{padding-left:33px}.hc-audit .learn-table{min-width:340px}}
@media(max-width:380px){.learning-body:has([data-tab=canvas]) .learn-tabs button{font-size:10px}}
.hc-settings{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr) minmax(0,1fr) auto;align-items:end}.hc-run-trigger .hc-primary{background:var(--accent);color:#fff;border-color:var(--accent);min-height:41px}.hc-result-badge{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:#eef8f3;border:1px solid #d2e8dd;border-radius:8px;padding:13px 16px;margin:14px 0 20px}.hc-result-badge strong{font-size:13px;font-weight:650;color:#317258}.hc-result-badge a{font-size:12px;color:#3f728f}.hc-result-badge button{margin-left:auto}
@media(max-width:800px){.hc-settings{grid-template-columns:1fr 1fr}.hc-settings>label:first-child,.hc-run-trigger{grid-column:1/-1}.hc-run-trigger button{width:100%}.hc-result-badge strong{font-size:12px;flex-basis:100%}.hc-result-badge button{margin-left:0}}
.hc-text-import{margin:20px 0;border:1px solid #d6e4ed;border-radius:8px;padding:15px;background:#f7fafc}.hc-text-import textarea{font:12px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;width:100%;padding:13px;background:white;border:1px solid #ccdfe9;border-radius:6px;resize:vertical;margin:5px 0 14px}.learn-artifact-dialog{width:min(860px,calc(100vw - 32px));max-height:90dvh;padding:26px;border:1px solid #cbdce8;border-radius:12px;color:#29495f;background:white;box-shadow:0 24px 80px #102a4130}.learn-artifact-dialog::backdrop{background:#19334b66}.learn-artifact-dialog h2{font-size:22px;line-height:1.4;margin:0 0 12px}.learn-artifact-dialog p{font-size:13px;line-height:1.8;color:#59778c}.learn-artifact-dialog label{font-size:12px;font-weight:650}.learn-artifact-dialog textarea{display:block;width:100%;height:42dvh;min-height:180px;margin:12px 0 18px;border:1px solid #c9dce8;border-radius:7px;background:#f7fbfe;padding:17px;font:12px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;resize:vertical;tab-size:4}.learn-artifact-dialog>div{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.learn-artifact-dialog button{font-family:inherit;font-size:12px;line-height:1.5;min-height:41px;border:1px solid #c9dce8;border-radius:7px;padding:9px 14px;background:white;color:#365d78;cursor:pointer}.learn-artifact-dialog .learn-button{font-size:12px}.learn-artifact-dialog button:last-child{margin-left:auto}
@media(max-width:800px){.learn-artifact-dialog{padding:20px}.learn-artifact-dialog h2{font-size:19px}.learn-artifact-dialog textarea{font-size:11px;padding:13px}}

/* Drawing comes before solving; the empty state is part of the graph editor. */
.hc-drawing-guide{display:flex;flex-wrap:wrap;gap:12px 24px;list-style:none;padding:0;margin:20px 0 25px;color:#42667f;font-size:12px}.hc-drawing-guide li{display:flex;align-items:center;gap:8px}.hc-drawing-guide span{display:grid;place-items:center;width:25px;height:25px;border-radius:50%;background:#e8f2f8;color:#426c88;font-weight:650}.hc-depth-setting{display:flex;flex-direction:column;gap:7px;max-width:400px;margin:0 0 24px;font-size:12px;color:#506e83}.hc-depth-setting input{max-width:130px}.hc-depth-setting span{font-size:11px;line-height:1.7}.hc-empty-board text{font-family:inherit;fill:#426f8a;font-size:21px}.hc-empty-board text+text{fill:#7491a5;font-size:15px}.hc-tools .hc-line-label{flex-direction:row;align-items:center;font-size:11px;gap:6px}.hc-line-label select{font-size:11px;min-height:37px;padding:8px}.hc-inspector [hidden],.hc-depth-setting[hidden]{display:none!important}.hc-inspector [data-hc-empty-node]{font-size:12px}.hc-depth-setting input{font-family:inherit;font-size:13px;color:#294c65;border:1px solid #c9dce8;border-radius:7px;padding:10px;min-height:41px;background:white}.hc-depth-setting input:disabled{background:#edf3f7;color:#8399a8}.hc-board-scroll:has(.hc-empty-board){min-height:280px}

.hc-board[data-tool=add],.hc-board[data-tool=link]{cursor:crosshair}.hc-board[data-tool=link] .hc-node{cursor:pointer}.hc-board[data-tool=move] .hc-node{cursor:grab}.hc-board[data-tool=move] .hc-node:active{cursor:grabbing}

/* Heuristic teaching cases: precision graphics and local scroll containers. */
.heuristic-orientation{margin:0 0 32px;padding:26px;background:linear-gradient(115deg,#edf6fa,#f2faf6);border:1px solid #dce9ee;border-radius:18px}.heuristic-orientation>p,.heuristic-case header>p:first-child{font-size:12px;color:#467487;margin:0 0 10px}.heuristic-orientation h2,.heuristic-case h2{font-size:clamp(23px,2vw,30px);line-height:1.3;letter-spacing:-.6px;margin:0 0 18px}.heuristic-orientation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.heuristic-orientation-grid span{font-size:12px;color:#6b8999}.heuristic-orientation-grid h3{font-size:15px;margin:8px 0}.heuristic-orientation-grid p{font-size:13px;line-height:1.7;margin:0;color:#547083}.heuristic-case{margin:28px 0 48px;padding:26px;border:1px solid #d6e4ec;border-radius:16px;background:#fbfdfe;min-width:0}.heuristic-case header p{line-height:1.85;color:#526e80}.heuristic-case label{display:flex;flex-direction:column;gap:7px;font-size:12px;font-weight:600}.heuristic-case select{font:inherit;min-height:43px;border:1px solid #c9dce7;border-radius:8px;padding:9px 12px;background:white;color:#284e63;max-width:100%}.heuristic-case .search-controls{margin:20px 0;flex-wrap:wrap}.heuristic-case .learn-table{font-size:12px}.heuristic-case [data-hx-report]{padding:16px;background:#eef5f8;border-radius:10px;font-size:13px;line-height:1.85;margin:18px 0}.heuristic-case-inputs{display:flex;align-items:end;gap:16px;flex-wrap:wrap;margin:22px 0}.heuristic-case-inputs .case-checkbox{flex-direction:row;align-items:center;min-height:43px}.heuristic-case-inputs input[type=checkbox]{width:17px;height:17px;accent-color:#317c96}.heuristic-terrain-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:24px;align-items:center}.heuristic-terrain-map{display:block;width:100%;height:auto;max-width:520px;margin:auto;font-family:inherit}.heuristic-terrain-map text{font-size:15px;fill:#254838}.heuristic-terrain-map .hx-axis{font-size:9px;fill:#688394}.heuristic-terrain-map .hx-endpoint{font-size:12px;font-weight:700;fill:#1e526c}.heuristic-telemetry{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}.heuristic-telemetry dt{font-size:11px;color:#6b8596}.heuristic-telemetry dd{margin:5px 0 0;font-size:23px;font-weight:600;color:#285d73}.heuristic-case [data-hx-terrain-report]>p{font-size:13px;line-height:1.8}.heuristic-sums{display:grid;gap:12px}.heuristic-sums .learn-formula{max-width:100%;overflow:auto;font-size:19px}.heuristic-terrain-code{margin-top:35px;border-top:1px solid #d9e6ed;padding-top:30px}.heuristic-case .journey-map-scroll,.heuristic-case .learn-table-scroll{max-width:100%;min-width:0}.heuristic-case .journey-map{min-width:1000px}.heuristic-case [data-hx-frontier]{margin:20px 0}.heuristic-case [data-hx-changes],.heuristic-case [data-hx-terrain-math]{margin:20px 0}.heuristic-case .search-board-wrap{min-width:0}
@media(max-width:800px){.heuristic-orientation,.heuristic-case{padding:20px}.heuristic-orientation-grid{gap:14px}.heuristic-terrain-layout{grid-template-columns:1fr}.heuristic-case-inputs{align-items:stretch}.heuristic-case-inputs>label{flex:1 1 200px}.heuristic-case .learn-formula{font-size:17px}.heuristic-terrain-layout [data-hx-terrain-report]{padding:15px;background:#f0f6f8;border-radius:10px}.heuristic-telemetry{gap:12px}.heuristic-case .search-puzzle-boards{gap:18px}}
@media(max-width:520px){.heuristic-orientation,.heuristic-case{padding:17px;border-radius:12px}.heuristic-orientation-grid{grid-template-columns:1fr;gap:17px}.heuristic-orientation-grid>div{padding-left:31px;position:relative}.heuristic-orientation-grid span{position:absolute;left:0;top:9px}.heuristic-case .search-controls .learn-button{font-size:11px;padding:10px 12px}.heuristic-case .search-board{width:135px}.heuristic-case h2{font-size:23px}.heuristic-case .search-puzzle-boards{justify-content:space-between;gap:10px;flex-wrap:wrap}.heuristic-case [data-hx-report]{padding:12px}.heuristic-sums .learn-formula{font-size:16px}}

.hc-area-settings{display:flex;align-items:end;flex-wrap:wrap;gap:10px;padding:12px 0 16px;border-top:1px solid #e2ecf2}.hc-area-settings label{display:grid;gap:6px;font-size:11px;color:#527085}.hc-area-settings input{width:112px;border:1px solid #c9dbe5;padding:9px;border-radius:7px;background:white;color:#294d64}.hc-area-settings button{min-height:39px;background:white;border:1px solid #cfdee8;border-radius:7px;padding:9px 12px;color:#31586d;font-size:11px;cursor:pointer}.hc-area-settings output{font-size:11px;margin-left:auto;color:#688495}.hc-experience .hc-board{min-width:0;max-width:none;flex:none}.hc-experience .hc-board-scroll{height:420px;max-height:none;min-height:0}.hc-board[data-tool=pan]{cursor:grab;touch-action:none}.hc-board[data-tool=pan]:active{cursor:grabbing}.hc-expanded-body{overflow:hidden}.hc-workspace.hc-expanded{position:fixed;inset:12px;z-index:110;background:#fff;overflow:auto;margin:0;padding:24px;border:1px solid #c9dce8;border-radius:15px;box-shadow:0 0 0 20px #24455a66}.hc-workspace.hc-expanded .hc-editor-layout{grid-template-columns:minmax(0,1fr) 240px}.hc-workspace.hc-expanded .hc-board-scroll{height:max(400px,calc(100dvh - 330px))}.hc-expanded .hc-tools{position:sticky;top:0;z-index:3;background:#fff;padding:10px 0}.hc-expanded [data-hc-action=expand]{background:#294d64;color:white;border-color:#294d64}
@media(max-width:800px){.hc-workspace.hc-expanded{inset:0;border-radius:0;padding:16px}.hc-workspace.hc-expanded .hc-editor-layout{grid-template-columns:minmax(0,1fr)}.hc-workspace.hc-expanded .hc-board-scroll{height:60dvh;min-height:350px}.hc-area-settings output{width:100%;margin:0}.hc-area-settings input{width:102px}}

.search-graph-scroll .search-source-graph{min-width:580px;max-width:740px;height:auto;margin:auto}.search-source-graph .search-h{fill:#bf4432;font-size:17px;font-weight:600}.search-source-graph .search-edge path{stroke:#344e5d}.search-source-graph .search-node circle{stroke:#344e5d;stroke-width:2}.heuristic-case .search-board{gap:0;padding:0;border:2px solid #263c48;border-radius:0;background:#263c48;width:180px}.heuristic-case .search-board>span{border:1px solid #263c48;border-radius:0;font-size:29px;font-weight:500;color:#1b323e}.heuristic-case .search-board>.blank{background:#1b323e;color:transparent}.heuristic-case .journey-map.journey-source-map{min-width:580px;width:100%;max-width:820px;height:auto;margin:auto;display:block}.journey-heuristic{fill:#bc4433;font-size:15px;text-anchor:middle;font-weight:600}.hx-heightmap-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(240px,1fr);gap:26px;align-items:center}.hx-heightmap-layout figure{margin:0;min-width:0}.hx-heightmap-layout canvas{display:block;width:100%;height:auto;max-width:640px;aspect-ratio:1;border-radius:4px;background:#10161b;image-rendering:auto}.hx-heightmap-layout figcaption{font-size:11px;line-height:1.8;color:#526d7e;margin-top:12px}.hx-map-playback{display:flex;gap:9px;flex-wrap:wrap;align-items:center;margin:22px 0}.hx-map-playback button{border:1px solid #cadce7;background:white;color:#30566c;border-radius:7px;font:inherit;font-size:11px;padding:10px;cursor:pointer}.hx-map-playback button:disabled{opacity:.45;cursor:default}.hx-map-playback label{flex:1 1 180px;font-size:11px}.hx-map-playback input{width:100%;accent-color:#bd6952}.hx-map-playback output{font-size:11px;color:#607f91}.hx-heightmap-layout .heuristic-telemetry dd{font-size:21px}.hx-heightmap-layout aside>p{font-size:12px}.heuristic-case [data-map-comparison]{margin-top:25px}
@media(max-width:1000px){.hx-heightmap-layout{grid-template-columns:1fr}.hx-heightmap-layout canvas{margin:auto}.hx-heightmap-layout aside{padding:18px;background:#f1f6f8;border-radius:10px}.hx-heightmap-layout .heuristic-telemetry{grid-template-columns:repeat(4,minmax(0,1fr))}.hx-heightmap-layout .heuristic-telemetry dd{font-size:17px}}
@media(max-width:520px){.heuristic-case .search-board{width:145px}.heuristic-case .search-board>span{font-size:25px}.hx-heightmap-layout .heuristic-telemetry{grid-template-columns:1fr 1fr}.hx-heightmap-layout{gap:18px}.hx-heightmap-layout .heuristic-telemetry dd{font-size:20px}.hx-map-playback label{flex-basis:100%}}
.hc-expanded>header p,.hc-expanded>.hc-drawing-guide{display:none}.hc-expanded>header h2{margin:0 0 12px}.hc-workspace.hc-expanded .hc-board-scroll{height:max(350px,calc(100dvh - 450px))}
.search-board{gap:0;padding:0;border:2px solid #263c48;border-radius:0;background:#263c48}.search-board>span{border:1px solid #263c48;border-radius:0;color:#1b323e}.search-board .blank{background:#1b323e;color:transparent}

/* A* map: original schematic roads, numerical trace, and paced playback. */
.astar-route{margin:0 0 40px;padding:26px;background:#fff;border:1px solid #d4e1e8;border-radius:16px;color:#29495e;min-width:0}
.ar-heading{display:flex;align-items:start;gap:20px;margin-bottom:23px}.ar-heading>div{flex:1;min-width:0}.ar-heading p:first-child{font-size:12px;color:#a9583d;margin:0 0 10px}.ar-heading h2{font-size:27px;line-height:1.35;letter-spacing:-.7px;margin:0 0 12px}.ar-heading p:last-child{font-size:13px;line-height:1.85;margin:0;color:#627d8b}.ar-badge{font-size:10px;padding:8px 11px;background:#f1f6ee;border:1px solid #dfe8d8;border-radius:20px;white-space:nowrap;color:#607852}
.ar-settings{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:18px}.astar-route label{font-size:11px;display:flex;flex-direction:column;gap:7px;color:#5c7789}.astar-route select{min-width:0;width:100%;font:inherit;font-size:12px;min-height:42px;border:1px solid #c9dce7;border-radius:7px;padding:8px;background:white;color:#31556b}.astar-route button{font:inherit;font-size:11px;min-height:38px;padding:8px 11px;border:1px solid #cddde5;border-radius:7px;background:white;color:#335c73;cursor:pointer}.astar-route button:hover{background:#edf4f7}.astar-route button:disabled{opacity:.45;cursor:default}.astar-route button:focus-visible,.astar-route select:focus-visible,.astar-route input:focus-visible{outline:3px solid #4b93bd;outline-offset:3px}
.ar-map-tools{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:14px}.ar-map-tools>span{font-size:11px;margin-right:4px;color:#678090}.ar-map-tools button[aria-pressed=true]{color:#a95437;background:#fff1e9;border-color:#e1a58e}.ar-map-tools label{margin-left:auto;flex-direction:row;align-items:center;gap:6px}.ar-map-tools input{accent-color:#31769e}
.ar-stage{display:grid;grid-template-columns:minmax(0,1.85fr) minmax(260px,1fr);gap:22px;align-items:start}.ar-map-column{min-width:0}.ar-map{border:1px solid #dce5d8;border-radius:12px;overflow:auto;max-width:100%;overscroll-behavior:contain}.ar-map-svg{display:block;width:100%;min-width:640px;height:auto;font-family:inherit}.ar-map-svg[data-tool=road] .ar-road{cursor:pointer}.ar-node{cursor:pointer;outline:none}.ar-node-circle{fill:white;stroke:#869db0;stroke-width:2}.ar-node-id{font-size:13px;font-weight:700;fill:#34566c;pointer-events:none}.ar-place{font-size:10px;fill:#65746c;paint-order:stroke;stroke:#f4f6ef;stroke-width:4;stroke-linejoin:round;pointer-events:none}.ar-node-h{font-size:10px;fill:#3d6a87;paint-order:stroke;stroke:#f4f6ef;stroke-width:4;pointer-events:none}.ar-node.endpoint .ar-node-circle{fill:#284f6d;stroke:white;stroke-width:3}.ar-node.endpoint .ar-node-id{fill:white}.ar-node.open .ar-node-circle{fill:#d4eafb;stroke:#3f91c0}.ar-node.current .ar-node-circle{fill:#fcbd90;stroke:#cf7650;stroke-width:3}.ar-node.closed .ar-node-circle{fill:#d1e6d5;stroke:#588e71}.ar-node.solution .ar-node-circle{fill:#377ba9;stroke:#fff;stroke-width:3}.ar-node.solution .ar-node-id{fill:white}.ar-node.inspected .ar-node-circle,.ar-node:focus-visible .ar-node-circle{stroke:#b34e32;stroke-width:4}.ar-node-pulse{fill:#ef9b7333;stroke:#d47b5555;stroke-width:2;pointer-events:none}
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.ar-details{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:25px;border-top:1px solid #e2ebef;padding-top:23px}.ar-details section{min-width:0}.astar-route h3{font-size:17px}.ar-details h3,.ar-comparison h3{margin:0 0 10px}.ar-details p,.ar-comparison p,.ar-reference p{font-size:11px;line-height:1.9;color:#6c8595}.ar-frontier{max-height:242px;overflow:auto;border:1px solid #e1eaf0;border-radius:8px}.astar-route table{font-size:11px;border-collapse:collapse;width:100%;white-space:nowrap}.astar-route th,.astar-route td{padding:11px 12px;text-align:left;border-bottom:1px solid #e2ebef}.astar-route thead th{background:#edf4f8;color:#527286;font-weight:500}.ar-frontier thead{position:sticky;top:0}.ar-frontier tbody tr:first-child{background:#fdf0e8}.astar-route tbody th{font-weight:500;color:#375b72}.ar-closed-list{font-size:10px!important}.ar-pseudocode ol{padding:0;list-style:none;counter-reset:ar-code}.ar-pseudocode li{counter-increment:ar-code;font-size:11px;line-height:1.7;padding:6px 7px;color:#6b8292;border-radius:5px}.ar-pseudocode li:before{content:counter(ar-code);display:inline-block;width:23px;color:#99aab5}.ar-pseudocode li.active{background:#fbeade;color:#9b5138}.ar-pseudocode li.active:before{color:#ae6143}
.ar-result:empty{display:none}.ar-result{margin-top:23px;background:#eef6fa;border:1px solid #d3e5ef;border-radius:11px;padding:19px}.ar-result-heading{display:flex;align-items:center;gap:22px;justify-content:space-between;margin-bottom:16px}.ar-result-heading p{font-size:11px;line-height:1.8;color:#688595;margin:4px 0}.ar-result-heading h3{margin:4px 0}.ar-trip-totals{display:flex;flex-direction:column;gap:7px;white-space:nowrap}.ar-trip-totals strong{font-size:24px;color:#2c6b94}.ar-trip-totals span{font-size:11px;color:#688595}.ar-result-note{font-size:11px;line-height:1.8;color:#648397}.ar-no-route{font-size:13px;line-height:1.8;color:#96504b}.ar-comparison{margin:26px 0}.ar-reference{border-top:1px solid #dce8ed;padding:16px 0}.ar-reference summary{font-size:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;list-style:none}.ar-reference summary::-webkit-details-marker{display:none}.ar-reference[open] summary svg{transform:rotate(180deg)}.ar-reference [data-ar-bound]{padding-top:14px;overflow:auto}.ar-sources{font-size:10px;line-height:1.9;color:#79909e;margin:10px 0 0}.ar-sources a{color:#37789b;text-decoration:underline;text-underline-offset:3px}
@media(prefers-reduced-motion:no-preference){.ar-node-pulse{animation:ar-pulse 1.3s ease-out infinite}.ar-edge-pulse{animation:ar-edge-pulse .9s ease-in-out infinite}.ar-road-line{transition:stroke .2s ease,stroke-width .2s ease}.ar-node-circle{transition:fill .2s ease,stroke .2s ease}@keyframes ar-pulse{0%{r:21;opacity:.8}100%{r:31;opacity:0}}@keyframes ar-edge-pulse{50%{opacity:.35}}}
.astar-route:not([data-playing=true]) .ar-node-pulse,.astar-route:not([data-playing=true]) .ar-edge-pulse{animation-play-state:paused}
@media(max-width:1200px){.ar-stage{grid-template-columns:1fr}.ar-map-svg{min-width:700px}.ar-explanation{display:grid;grid-template-columns:1.6fr 1fr;column-gap:22px}.ar-explanation .ar-phase,.ar-explanation h3,.ar-explanation>[data-ar-narrative],.ar-explanation .ar-formula{grid-column:1}.ar-explanation .ar-stats{grid-column:2;grid-row:1/4;margin-top:0}.ar-explanation .ar-inspector{grid-column:2;grid-row:4/6}.ar-heading h2{font-size:24px}}
@media(max-width:800px){.astar-route{padding:18px 15px}.ar-heading{display:block}.ar-badge{display:inline-block;margin-top:14px}.ar-settings{grid-template-columns:1fr 1fr}.ar-map-tools label{margin-left:0}.ar-details{grid-template-columns:1fr}.ar-playback label{margin-left:0}.ar-explanation{display:block}.ar-map-svg{min-width:680px}.ar-playback button{font-size:10px;padding:9px}.ar-result-heading{flex-wrap:wrap}.ar-trip-totals{white-space:normal}.ar-heading h2{font-size:23px}.ar-phases{margin-bottom:20px}.ar-phase{margin-top:0!important}}
@media(max-width:420px){.ar-settings{gap:10px}.ar-settings select{font-size:11px}.ar-map-tools>span{flex-basis:100%}.ar-playback button[data-ar-action=end]{flex:1}.ar-playback .ar-play{min-width:133px}}
.ar-node-id{font-size:16px}.ar-place{font-size:14px}.ar-node-h{font-size:13px}.ar-road text{font-size:13px}.ar-node.open .ar-node-id,.ar-node.current .ar-node-id,.ar-node.closed .ar-node-id{fill:#234a62}
.ar-probe{fill:#dc784a;stroke:white;stroke-width:2;pointer-events:none}
.ar-playback{margin-top:15px}.ar-timeline{margin:14px 0 20px}.ar-mobile-hint{display:none}.ar-map:focus-visible{outline:3px solid #4b93bd;outline-offset:3px}
@media(max-width:800px){.ar-mobile-hint{display:block;font-size:10px!important;margin:8px 0!important;color:#638292!important}.ar-playback{gap:7px}}

/* Game-playing lesson: decision trees and playable, explicitly modelled games. */
.gg-lesson,.gg-case,.gg-workshop,.gg-code-lab,.gg-practice,.gg-pseudocode{min-width:0;color:#2a4d65}.gg-workshop,.gg-case{background:#fff;border:1px solid #d8e5ed;border-radius:14px;padding:25px;margin:0 0 38px}.gg-workshop header>p:first-child,.gg-case header>p:first-child,.gg-code-lab header>p:first-child,.gg-eyebrow{font-size:11px;color:#ae674d;margin:0 0 10px;text-transform:none;letter-spacing:normal}.gg-workshop h2,.gg-case h2,.gg-code-lab h2,.gg-practice h2{font-size:26px;line-height:1.4;letter-spacing:-.6px;margin:0 0 13px}.gg-workshop h3,.gg-case h3,.gg-code-lab h3,.gg-practice h3{font-size:18px;line-height:1.5;margin:18px 0 12px}.gg-workshop p,.gg-case p,.gg-code-lab p,.gg-practice>header>p{font-size:13px;line-height:1.9;color:#617e91}.gg-small{font-size:11px!important;color:#728a9a!important;line-height:1.85!important}.gg-workshop ul,.gg-case ol{font-size:13px;line-height:1.9;color:#5e7c90}.gg-workshop li+li,.gg-case li+li{margin-top:8px}
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.gg-positions{margin:22px 0 40px}.gg-positions>div{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;max-width:700px}.gg-positions>div>div p{font-size:12px;color:#6b899c}.gg-tictactoe{display:grid;grid-template-columns:repeat(3,1fr);width:155px;background:#fff;gap:1px;border:1px solid #c8d9e4}.gg-tictactoe span{aspect-ratio:1;display:grid;place-items:center;background:#f4f8fb;border:1px solid #d7e4ed;font-size:25px}.gg-tictactoe span.max{color:#bc7052}.gg-tictactoe span.min{color:#397ba5}.gg-digit-board{display:flex;justify-content:center;gap:16px;margin:24px auto}.gg-digit-board>div{padding:16px 24px;border:1px solid #ccdee9;background:#f4f9fd;border-radius:10px;text-align:center;min-width:78px}.gg-digit-board span{display:block;font-size:12px;color:#7591a4}.gg-digit-board strong{font-size:43px;color:#3b708e}.gg-digit-board>div.terminal{background:#fdeee4;border-color:#e5b49a}.gg-digit-board>div.terminal strong{color:#b6674c}.gg-digit-example{font-size:30px!important;letter-spacing:2px;text-align:center;margin:28px 0}.gg-game-state{font-size:14px!important;font-weight:600;color:#355b74!important}.gg-matches-board{display:flex;justify-content:center;gap:18px;margin:25px 0}.gg-matches-board>div{flex:1;border:1px solid #dbe6ee;background:#f8fbfd;border-radius:10px;text-align:center;padding:16px 10px;max-width:230px}.gg-matches-board h4{font-size:12px;color:#5f7e92;margin:0 0 18px}.gg-sticks{display:flex;align-items:center;justify-content:center;height:95px;gap:3px}.gg-sticks svg{height:88px;width:14px;flex:none}.gg-sticks span{font-size:12px;color:#8b9ea9}.gg-matches-board strong{display:block;font-size:13px;color:#56798f;margin-top:14px}.gg-history{font-size:11px!important;color:#6a8699!important;line-height:1.8!important;padding-left:20px;margin:22px 0}
.gg-dam-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(250px,1fr);gap:25px;align-items:start;margin-top:26px}.gg-dam-layout>div,.gg-dam-layout aside{min-width:0}.gg-dam-files{display:grid;grid-template-columns:repeat(8,1fr);text-align:center;font-size:10px;color:#8197a6;max-width:500px;margin:0 0 8px}.gg-dam-board{display:grid;grid-template-columns:repeat(8,1fr);aspect-ratio:1;max-width:500px;width:100%;overflow:hidden;border:5px solid #547184;border-radius:8px;background:#577486;gap:0}.gg-dam-board button{border:0!important;border-radius:0!important;min-width:0;min-height:0;aspect-ratio:1;padding:0;display:grid;place-items:center;position:relative}.gg-dam-board button.light{background:#edf2ee;cursor:default}.gg-dam-board button.dark{background:#5d7b8e}.gg-dam-board button.selected{background:#b7bd9b;box-shadow:inset 0 0 0 3px #eaa578}.gg-dam-board button:focus-visible{outline:3px solid #efc075;outline-offset:-4px;z-index:1}.gg-piece{width:73%;height:73%;border-radius:50%;display:grid;place-items:center;font-size:16px;font-weight:700;box-shadow:0 3px 0 #0003,0 2px 4px #0002;border:2px solid #ffffff80}.gg-piece.max{background:#e59770;color:#663520}.gg-piece.min{background:#a5c9e4;color:#294d68}.gg-piece.king{outline:2px solid #f4e3bc;outline-offset:-6px}.gg-destination-dot{width:22%;height:22%;border-radius:50%;background:#f2d6a2}.gg-dam-layout aside p{font-size:12px}.gg-dam-layout .gg-buttons{gap:8px}.gg-dam-layout .gg-buttons button{flex:1 1 110px;font-size:10px;padding:9px}.gg-dam-layout [data-dam-choices] .learn-table-scroll{max-height:245px;overflow:auto}.gg-dam-layout select{width:100%}.gg-dam-layout [data-dam-feedback]{min-height:50px}.gg-dam-layout .gg-stats{gap:15px}.gg-dam-layout .gg-stats dd{font-size:18px}
.gg-pseudocode>section{margin:30px 0 40px}.gg-pseudocode pre{background:#243e51;color:#dcebf4;border-radius:9px;padding:20px;font-size:12px;line-height:1.8;overflow:auto}.gg-pseudocode>section p{font-size:13px;line-height:1.8;color:#637e92}.gg-practice>header{margin-bottom:28px}.gg-exercise{border-bottom:1px solid #dce7ee;margin:0 0 28px;padding-bottom:26px}.gg-exercise .learn-question{border:0;padding:12px 0}.gg-exercise .learn-question legend{margin-bottom:17px}.gg-exercise .learn-reference{margin:16px 0 0}.gg-exercise .learn-reference li{font-size:13px;line-height:1.85;color:#617b8e}.gg-code-lab{margin-bottom:40px}.gg-code-columns{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:20px;align-items:start}.gg-code-columns>div,.gg-code-columns>aside{min-width:0}.gg-code-caption{display:flex;justify-content:space-between;background:#203a4e;color:#b8d0df;border-radius:8px 8px 0 0;padding:12px 15px;font-size:10px;gap:10px}.gg-code-columns textarea{display:block;width:100%;max-width:100%;min-height:440px;resize:vertical;border:0;background:#213d52;color:#e2edf4;font:12px/1.8 ui-monospace,SFMono-Regular,Menlo,monospace;border-radius:0 0 8px 8px;padding:16px;tab-size:4}.gg-code-columns aside{padding:18px;border:1px solid #d6e6ef;border-radius:9px;background:#f4f9fc}.gg-code-columns aside h3{font-size:16px;margin:0 0 14px}.gg-code-columns aside p{font-size:11px}.gg-code-columns aside pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:11px;line-height:1.9;background:#fff;border:1px solid #e1eaf1;padding:12px;border-radius:6px;min-height:130px}.gg-code-columns [data-gcode-local] pre{min-height:0}.gg-code-lab .learn-reference pre{font-size:12px;line-height:1.8;overflow:auto}#game-dam-code{padding-top:30px;border-top:1px solid #dce8ef;margin-top:40px}#game-dam-code>p{font-size:13px;color:#67879c;line-height:1.8}
@media(prefers-reduced-motion:no-preference){.gg-workshop[data-playing=true] .gg-tree-node.current .gg-shape,.gg-workshop[data-playing=true] .gg-tree-node.current>rect{animation:gg-node-pulse 1s ease-in-out infinite}.gg-tree-node .gg-shape,.gg-tree-node>rect{transition:fill .18s,stroke .18s}@keyframes gg-node-pulse{50%{stroke-width:4;fill:#ffbd90}}}
@media(max-width:1100px){.gg-dam-layout,.gg-code-columns{grid-template-columns:1fr}.gg-dam-board,.gg-dam-files{margin-left:auto;margin-right:auto}.gg-dam-layout aside{padding:18px;background:#f4f8fb;border-radius:9px}.gg-dam-layout .gg-stats{grid-template-columns:repeat(4,minmax(0,1fr))}.gg-trace-panel{grid-template-columns:1fr}.gg-trace-panel .gg-stats{grid-template-columns:repeat(4,minmax(0,1fr))}.gg-controls>label{flex-basis:190px}}
@media(max-width:800px){.gg-workshop,.gg-case{padding:18px 15px;border-radius:11px}.gg-workshop h2,.gg-case h2,.gg-code-lab h2,.gg-practice h2{font-size:23px}.gg-controls{gap:11px}.gg-controls>label{flex-basis:140px}.gg-buttons label{margin-left:0}.gg-buttons button{font-size:10px;padding:9px 10px}.gg-tree-svg{min-width:780px}.gg-trace-panel{padding:15px;gap:15px}.gg-trace-panel .gg-stats{gap:10px}.gg-trace-panel .gg-stats dd{font-size:18px}.gg-digit-board{gap:11px}.gg-digit-board>div{padding:12px 18px;min-width:69px}.gg-matches-board{gap:9px}.gg-matches-board>div{padding:14px 5px}.gg-matches-board h4{font-size:11px}.gg-sticks{gap:0}.gg-sticks svg{width:13px}.gg-positions>div{gap:14px;justify-content:start}.gg-tictactoe{width:130px}.gg-dam-layout .gg-stats{grid-template-columns:1fr 1fr}.gg-dam-layout{gap:14px}.gg-piece{font-size:14px}.gg-pseudocode pre{padding:14px;font-size:11px}.gg-exercise .gg-table,.gg-table{font-size:11px}.gg-code-columns textarea{min-height:390px;font-size:11px;padding:14px}.gg-score-inputs{grid-template-columns:repeat(3,minmax(0,1fr))}}
.gg-tree-h2{fill:#b75e55}
.gg-timeline input{appearance:none;background:transparent;border:0;padding:0;height:18px;min-height:18px;color-scheme:light}.gg-timeline input::-webkit-slider-runnable-track{height:4px;background:#d9e6ed;border-radius:5px}.gg-timeline input::-webkit-slider-thumb{appearance:none;width:14px;height:14px;margin-top:-5px;border:0;border-radius:50%;background:#bd7356}.gg-timeline input::-moz-range-track{height:4px;background:#d9e6ed;border-radius:5px}.gg-timeline input::-moz-range-thumb{width:14px;height:14px;border:0;border-radius:50%;background:#bd7356}.gg-tree-id,.gg-tree-value{paint-order:stroke;stroke:#f9fcfe;stroke-width:4;stroke-linejoin:round}
.gg-dam-shell{display:grid;grid-template-columns:18px minmax(0,1fr);gap:4px 6px;width:100%;max-width:524px;margin:auto}.gg-dam-shell .gg-dam-files{grid-column:2;grid-row:1;max-width:none;margin:0;width:100%}.gg-dam-shell .gg-dam-board{grid-column:2;grid-row:2;max-width:none}.gg-dam-ranks{grid-column:1;grid-row:2;display:grid;grid-template-rows:repeat(8,1fr);font-size:10px;color:#7c95a5;text-align:center;padding:5px 0}.gg-dam-ranks span{display:grid;place-items:center}

/* Reading depth: worked reasoning stays visible; self-check answers are optional. */
.gg-reading-orientation{margin:0 0 40px;padding:0 0 32px;border-bottom:1px solid #dbe7ef}.gg-reading-orientation>p:first-child{font-size:12px;color:#ae674d;margin:0 0 13px}.gg-reading-orientation h2{font-size:30px;line-height:1.35;max-width:730px;margin:0 0 20px;letter-spacing:-.75px}.gg-reading-orientation>p{color:#536e81;line-height:1.9;max-width:900px}.gg-reading-orientation nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin:26px 0}.gg-reading-orientation nav a{display:block;padding:17px 0;border-top:2px solid #97b8cc;color:#2b526d}.gg-reading-orientation nav a:hover{border-color:#cd7c57;color:#9a5438}.gg-reading-orientation nav span{display:block;font-size:11px;color:#738b9b;margin-bottom:8px}.gg-reading-orientation nav strong{display:block;font-size:16px;line-height:1.6;margin-bottom:7px}.gg-reading-orientation nav small{display:block;font-size:12px;color:#657f90;line-height:1.85}.gg-lesson .search-prose{max-width:980px;margin-bottom:55px}.gg-lesson .search-prose>p:not(.search-section-number){max-width:900px;line-height:1.95;margin:0 0 19px}.gg-lesson .search-prose>h2{max-width:850px;margin-bottom:23px}.gg-lesson .search-prose h3{color:#284f6a;font-size:18px;line-height:1.6;margin:0 0 12px;letter-spacing:-.2px}
.gg-reading-example{margin:29px 0;padding:23px 26px;background:#f4f8fb;border-left:3px solid #85adc5;border-radius:0 9px 9px 0}.gg-reading-example .gg-reading-label{font-size:11px;color:#8b644d;margin:0 0 9px}.gg-reading-example p,.gg-reading-example li{color:#496a80;font-size:14px;line-height:1.95}.gg-reading-example>p{margin:0 0 14px}.gg-reading-example ol{padding-left:22px;margin:18px 0}.gg-reading-example li{padding-left:6px;margin-bottom:12px}.gg-reading-example .gg-reading-takeaway{border-top:1px solid #d8e5ed;padding-top:16px;margin:17px 0 0;color:#345972}.gg-reading-note{margin:25px 0;padding:9px 0 9px 20px;border-left:3px solid #e2b491}.gg-reading-note p{margin:0;color:#5b7486;font-size:13px;line-height:1.9}.gg-reading-note h3{font-size:16px!important}
.gg-reading-table{margin:29px 0;max-width:100%;min-width:0}.gg-reading-table .learn-table-scroll{border:1px solid #dce7ef;border-radius:9px;overflow:auto;max-width:100%}.gg-reading-table table{width:100%;border-collapse:collapse;min-width:600px;font-size:13px;line-height:1.8;text-align:left}.gg-reading-table caption{text-align:left;padding:17px 18px;background:#f0f6fa;color:#305b77;font-size:15px;font-weight:650;line-height:1.6}.gg-reading-table th,.gg-reading-table td{padding:13px 17px;border-bottom:1px solid #e2ebf1;vertical-align:top;white-space:normal;overflow-wrap:anywhere}.gg-reading-table thead th{font-size:12px;font-weight:600;background:#f6f9fc;color:#56758b}.gg-reading-table tbody th{color:#355b74;font-weight:600;width:21%}.gg-reading-table tbody td{color:#597789}.gg-reading-table tbody tr:last-child>*{border-bottom:0}.gg-reading-table figcaption{color:#668193;font-size:12px;line-height:1.9;margin:12px 2px 0}
.gg-reading-check{margin:30px 0 25px;padding:21px 0;border-top:1px solid #dce7ef;border-bottom:1px solid #dce7ef}.gg-reading-check>p{font-size:11px;color:#a7694d;margin:0 0 9px}.gg-reading-check h3{font-size:17px!important;max-width:830px}.gg-reading-check .learn-reference{background:transparent;border:0;border-radius:0;margin:14px 0 0;padding:0}.gg-reading-check .learn-reference summary{padding:0;display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:13px;color:#3c6a87;min-height:40px;cursor:pointer}.gg-reading-check .learn-reference>p{font-size:14px;line-height:1.95;padding:15px 0 0;margin:0;color:#5c7789}.gg-reading-check details[open] summary{color:#9a593f}
.gg-reading-flow{margin:28px 0}.gg-reading-flow ol{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;list-style:none;padding:0;counter-reset:gg-flow}.gg-reading-flow li{position:relative;padding:15px 0 0;border-top:2px solid #91b2c8;counter-increment:gg-flow}.gg-reading-flow li:before{content:counter(gg-flow,decimal-leading-zero);display:block;font-size:11px;color:#b77857;margin-bottom:8px}.gg-reading-flow li+li:after{content:'→';position:absolute;top:-12px;left:-17px;color:#7495aa;background:#fff;padding:1px 3px;font-size:16px}.gg-reading-flow strong{font-size:14px;line-height:1.8}.gg-reading-flow li p{font-size:12px;line-height:1.9;margin:9px 0 0;color:#638095}.gg-reading-equation{margin:26px 0;padding:20px;background:#f2f7fa;border-radius:9px;max-width:100%;overflow:auto}.gg-reading-equation math{font-size:23px;text-align:left;margin:0}.gg-reading-code{margin:28px 0}.gg-reading-code pre{font-size:12px;line-height:1.85;padding:22px;border-radius:9px;background:#243e51;color:#dcebf4;overflow:auto}.gg-reading-code>p{font-size:13px;color:#5c788c;line-height:1.85}.gg-lesson .gg-reading-sources{font-size:11px!important;color:#7990a0;margin-top:24px!important;line-height:1.9!important}.gg-reading-sources a{color:#457391;text-decoration:underline;text-decoration-color:#bdd0dd;text-underline-offset:3px}.gg-reading-references{padding:30px 0;border-top:1px solid #dce7ef}.gg-reading-references ol{padding-left:22px}.gg-reading-references li{padding:13px 0 13px 8px;color:#6b8597}.gg-reading-references a{font-size:14px;line-height:1.8;color:#355f7d}.gg-reading-references li p{font-size:13px;margin:9px 0 0;line-height:1.9;max-width:820px;color:#647e91}
@media(max-width:800px){.gg-reading-orientation h2{font-size:26px}.gg-reading-orientation nav{grid-template-columns:1fr;gap:2px}.gg-reading-orientation nav a{padding:14px 0}.gg-reading-orientation nav strong{font-size:15px}.gg-reading-example{padding:20px 16px}.gg-reading-table table{font-size:12px}.gg-reading-table caption{font-size:14px}.gg-reading-table th,.gg-reading-table td{padding:12px}.gg-reading-flow ol{grid-template-columns:1fr;gap:18px}.gg-reading-flow li{padding:10px 0 0 35px;border:0;border-left:2px solid #adc5d5}.gg-reading-flow li:before{position:absolute;left:10px;top:12px}.gg-reading-flow li+li:after{content:'↓';left:-8px;top:-18px}.gg-reading-equation{padding:15px}.gg-reading-equation math{font-size:20px}.gg-reading-check{padding:19px 0}.gg-reading-references a{overflow-wrap:anywhere}.gg-lesson .search-prose{margin-bottom:42px}}