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button[aria-pressed=true]{border-color:var(--primary-color);color:var(--primary-text);background:var(--primary-bg)}._searchSuggestions_bpdk3_230 button:focus-visible{border-color:var(--primary-color);color:var(--primary-text);background:var(--primary-bg)}._searchResults_bpdk3_258{width:100%;max-width:100%;margin-top:var(--spacing-xl);align-items:stretch;gap:var(--spacing-md);grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));display:grid}._searchCount_bpdk3_268,._searchHint_bpdk3_269{color:var(--text-secondary);font-size:var(--font-size-sm);grid-column:1/-1}._searchResults_bpdk3_258 article{min-width:0;padding:var(--spacing-md);align-content:start;gap:var(--spacing-sm);border:1px solid var(--border-base);border-radius:var(--radius-md);background:var(--bg-elevated);display:grid}._searchResults_bpdk3_258 article>div{align-items:center;gap:var(--spacing-xs);color:var(--text-secondary);font-size:var(--font-size-xs);display:flex}._searchResults_bpdk3_258 article a{color:var(--text-primary);gap:3px;display:grid}._searchResults_bpdk3_258 article a>span{color:var(--text-secondary);font-size:var(--font-size-sm)}._searchResults_bpdk3_258 article p{color:var(--text-regular);font-size:var(--font-size-sm);margin:0}._partsList_bpdk3_311{gap:var(--spacing-xl);display:grid}._part_bpdk3_311{padding-top:var(--spacing-lg);border-top:1px solid var(--border-base);grid-template-columns:minmax(180px,.8fr) minmax(0,2fr);gap:max(1rem,min(5vw,4rem));display:grid}._partHeading_bpdk3_324>span{color:var(--primary-text);font-size:var(--font-size-sm)}._partHeading_bpdk3_324 h2{margin:2px 0 var(--spacing-sm);font-size:var(--font-size-xl)}._partHeading_bpdk3_324 p{color:var(--text-secondary);margin:0}._part_bpdk3_311 ol{gap:var(--spacing-sm);margin:0;padding:0;list-style:none;display:grid}._part_bpdk3_311 li a{padding:var(--spacing-md);border:1px solid transparent;border-left:3px solid var(--visual-accent-current,transparent);border-radius:var(--radius-md);color:var(--text-primary);background:var(--bg-elevated);display:grid}._part_bpdk3_311 li a:hover{border-color:var(--primary-color);color:var(--text-primary)}._part_bpdk3_311 li a>span{color:var(--primary-text);font-size:var(--font-size-xs);font-weight:700}._part_bpdk3_311 li a>strong{font-size:var(--font-size-nav);margin-top:3px}._part_bpdk3_311 li a>small{margin-top:var(--spacing-xs);color:var(--text-secondary);font-size:var(--font-size-sm)}._projectGrid_bpdk3_379{gap:var(--spacing-md);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}._projectCard_bpdk3_385{min-width:0;padding:var(--spacing-lg);border:1px solid var(--border-base);border-top:3px solid var(--visual-accent-current,var(--primary-color));border-radius:var(--radius-lg);background:var(--bg-elevated);flex-direction:column;display:flex}._projectNumber_bpdk3_396{color:var(--primary-text);font-family:Fira Code,Consolas,monospace;font-size:var(--font-size-xs);letter-spacing:.08em}._projectCardTopline_bpdk3_403{justify-content:space-between;align-items:center;gap:var(--spacing-sm);display:flex}._projectCard_bpdk3_385 h2{margin:var(--spacing-md) 0;font-size:var(--font-size-lg);line-height:var(--line-height-heading)}._projectCard_bpdk3_385>p{color:var(--text-regular);margin:0}._projectCard_bpdk3_385 dl{margin:var(--spacing-lg) 0;gap:var(--spacing-xs);display:grid}._projectCard_bpdk3_385 dl>div{justify-content:space-between;gap:var(--spacing-sm);display:flex}._projectCard_bpdk3_385 dt{color:var(--text-secondary);font-size:var(--font-size-sm)}._projectCard_bpdk3_385 dd{color:var(--text-regular);font-size:var(--font-size-sm);text-align:right;margin:0}._projectCard_bpdk3_385>a{margin-top:auto}._scenarioTags_bpdk3_449{margin-bottom:var(--spacing-lg);gap:var(--spacing-xs);flex-wrap:wrap;display:flex}._placeholderPage_bpdk3_194{max-width:680px;min-height:58vh;padding:5rem var(--layout-page-gutter);place-content:center start;margin:0 auto;display:grid}._placeholderIcon_bpdk3_465{width:52px;height:52px;margin-bottom:var(--spacing-lg);border-radius:var(--radius-lg);color:var(--primary-text);background:var(--primary-bg);place-items:center;font-size:24px;display:grid}._breadcrumb_bpdk3_477{min-width:0;color:var(--text-secondary);font-size:var(--font-size-xs);flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:0;line-height:1.35;display:flex}._chapterTopline_bpdk3_489{justify-content:space-between;align-items:center;gap:var(--spacing-md);margin-bottom:6px;display:flex}._chapterTopline_bpdk3_489 ._breadcrumb_bpdk3_477{margin-bottom:0}._readingTime_bpdk3_501{color:var(--text-secondary);font-size:var(--font-size-xs);font-variant-numeric:tabular-nums;flex:none}._chapterLayout_bpdk3_508{justify-content:center;align-items:start;gap:var(--spacing-lg);display:grid}._chapterLayout_bpdk3_508[data-layout=three-column]{grid-template-columns:var(--layout-book-nav-width) minmax(0, 1fr) var(--layout-toc-width);gap:var(--layout-book-nav-gap) var(--layout-toc-gap)}._chapterLayout_bpdk3_508[data-layout=toc]{grid-template-columns:minmax(0, var(--layout-content-max)) var(--layout-toc-width);gap:var(--layout-toc-gap)}._chapterLayout_bpdk3_508[data-layout=single]{grid-template-columns:minmax(0, var(--layout-content-max))}._article_bpdk3_532{width:100%;max-width:var(--layout-content-max);justify-self:center;min-width:0}._chapterTitle_bpdk3_539{font-size:var(--font-size-chapter-title);font-weight:800;line-height:var(--line-height-heading);letter-spacing:-.025em;text-wrap:balance;margin-bottom:12px}._bookNavColumn_bpdk3_548,._tocColumn_bpdk3_549{top:calc(var(--layout-anchor-offset) + var(--spacing-sm));max-height:calc(100vh - var(--layout-anchor-offset) - var(--spacing-lg));position:sticky;overflow:auto}._bookNavColumn_bpdk3_548{padding-right:var(--spacing-md);border-right:1px solid var(--border-base)}._courseRail_bpdk3_561{height:calc(100vh - var(--layout-anchor-offset) - var(--spacing-lg));height:calc(100dvh - var(--layout-anchor-offset) - var(--spacing-lg));display:grid;overflow:hidden}._courseRail_bpdk3_561 ._courseNavigation_bpdk3_568{grid-template-rows:auto minmax(0,1fr) auto;height:100%}._courseNavigation_bpdk3_568{gap:var(--spacing-sm);min-height:0;display:grid}._courseNavigationHeader_bpdk3_579{gap:2px;display:grid}._courseNavigationHeader_bpdk3_579 strong{color:var(--text-primary);font-size:var(--font-size-lg);letter-spacing:-.015em;line-height:var(--line-height-heading)}._courseNavigationHeader_bpdk3_579 span{color:var(--text-secondary);font-size:var(--font-size-xs)}._bookNav_bpdk3_548{gap:var(--spacing-md);min-height:0;display:grid;overflow:auto}._partGroup_bpdk3_603{gap:2px;display:grid}._partGroup_bpdk3_603>strong,._partGroupSummary_bpdk3_609{color:var(--text-secondary);font-size:var(--font-size-xs);letter-spacing:.06em;margin-bottom:4px;font-weight:700}._partGroupSummary_bpdk3_609{justify-content:space-between;align-items:center;gap:var(--spacing-sm);cursor:pointer;padding:6px 0;display:flex}._partGroupSummary_bpdk3_609:before{color:var(--text-secondary);content:"›";flex:none;transition:transform .16s}._partGroupSummary_bpdk3_609>span{flex:1}._partGroup_bpdk3_603[open]>._partGroupSummary_bpdk3_609:before{transform:rotate(90deg)}._partGroupSummary_bpdk3_609 small{color:var(--text-secondary);font-size:var(--font-size-xs);font-weight:400}._partGroupLinks_bpdk3_647{border-left:1px solid var(--border-light);gap:2px;margin-left:7px;padding-left:9px;display:grid}._partGroupLinks_bpdk3_647 a{border-radius:var(--radius-sm);color:var(--text-secondary);font-size:var(--font-size-sm);grid-template-columns:20px minmax(0,1fr) auto;align-items:center;gap:7px;padding:7px 8px;line-height:1.45;display:grid}._partGroupLinks_bpdk3_647 a:hover,._partGroupLinks_bpdk3_647 a[aria-current=page]{color:var(--primary-text);background:var(--primary-bg)}._partGroupLinks_bpdk3_647 a>span:first-child{font-family:Fira Code,Consolas,monospace;font-size:var(--font-size-xs);opacity:.78}._courseLinkStatus_bpdk3_679{color:var(--primary-text);font-size:var(--font-size-xs);align-items:center;gap:4px;display:inline-flex}._courseCatalogLink_bpdk3_687{border-top:1px solid var(--border-light);color:var(--primary-text);font-size:var(--font-size-sm);padding:10px 8px 4px}._chapterOverview_bpdk3_694{padding-bottom:var(--spacing-md);align-items:center;gap:12px var(--spacing-lg);border-bottom:1px solid var(--border-light);margin-bottom:8px;display:grid}._chapterMeta_bpdk3_703{min-width:0;color:var(--text-regular);font-size:var(--font-size-xs);align-items:center;gap:6px;display:flex}._chapterMeta_bpdk3_703>span{border:1px solid var(--border-base);border-radius:var(--radius-full);background:var(--bg-elevated);white-space:nowrap;align-items:center;gap:5px;min-width:0;padding:5px 9px;display:inline-flex}._chapterMeta_bpdk3_703 strong{color:var(--primary-text);letter-spacing:.08em;font-size:11px;font-weight:800}._chapterCompletion_bpdk3_731{margin-top:var(--spacing-xl);justify-content:flex-end;align-items:center;display:flex}._chapterCompletion_bpdk3_731 .ant-btn{flex:none;min-width:152px}._article_bpdk3_532 h2{letter-spacing:-.02em;font-size:max(1.5rem,min(2.2vw,1.875rem));font-weight:800;line-height:var(--line-height-heading);margin:1.75rem 0 12px;padding-left:13px;position:relative}._article_bpdk3_532 h2:before{border-radius:var(--radius-full);background:var(--primary-color);content:"";width:4px;margin-left:-13px;position:absolute;top:.18em;bottom:.18em}._article_bpdk3_532>h2:first-of-type{margin-top:var(--spacing-lg)}._article_bpdk3_532 h3{letter-spacing:-.015em;font-size:max(1.25rem,min(1.7vw,1.5rem));font-weight:800;line-height:var(--line-height-heading);margin:1.6rem 0 10px}._article_bpdk3_532 h4{margin:1.4rem 0 var(--spacing-sm);font-size:var(--font-size-lg);font-weight:750}._article_bpdk3_532 h1,._article_bpdk3_532 h2,._article_bpdk3_532 h3,._article_bpdk3_532 h4{scroll-margin-top:var(--layout-anchor-offset)}._article_bpdk3_532 p,._article_bpdk3_532 li{max-width:var(--layout-prose-max);line-height:var(--line-height-body)}._article_bpdk3_532 p{margin:12px 0}._article_bpdk3_532 strong{color:var(--text-primary);font-weight:800}._article_bpdk3_532 ul,._article_bpdk3_532 ol{margin:var(--spacing-md) 0;padding-left:1.5rem}._article_bpdk3_532 a{color:var(--primary-text);text-underline-offset:.18em;text-decoration:underline}._article_bpdk3_532 code{background:var(--bg-surface);border-radius:5px;padding:.15em .35em;font-family:Fira Code,Consolas,Monaco,monospace;font-size:.9em}._article_bpdk3_532 pre{margin:var(--spacing-lg) 0;padding:var(--spacing-md);border:1px solid var(--code-surface-border);border-radius:var(--radius-md);background:var(--code-surface-editor-bg);line-height:var(--line-height-code);overflow:auto}._article_bpdk3_532 pre code{background:0 0;padding:0}._article_bpdk3_532 blockquote{max-width:var(--layout-prose-max);margin:var(--spacing-lg) 0;padding:var(--spacing-md);border-left:3px solid var(--primary-color);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:var(--bg-surface)}._article_bpdk3_532 .course-figure{max-width:100%;margin:var(--spacing-xl) auto;justify-items:center;display:grid}._article_bpdk3_532 .course-figure img{max-width:100%;height:auto;display:block}._article_bpdk3_532 figcaption{margin-top:var(--spacing-sm);color:var(--text-secondary);font-size:var(--font-size-sm);text-align:center}._article_bpdk3_532 table{width:100%;max-width:100%;margin:var(--spacing-lg) 0;border-collapse:collapse;font-size:var(--font-size-sm);display:block;overflow-x:auto}._article_bpdk3_532 th,._article_bpdk3_532 td{border:1px solid var(--border-base);text-align:left;vertical-align:top;padding:8px 10px}._article_bpdk3_532 th{background:var(--bg-surface)}._sectionToc_bpdk3_889{padding-left:var(--spacing-md);border-left:1px solid var(--border-base)}._sectionToc_bpdk3_889>strong{margin-bottom:var(--spacing-sm);font-size:var(--font-size-nav-group);display:block}._sectionTocNav_bpdk3_900{gap:2px;max-height:min(45dvh,360px);display:grid;overflow:auto}._sectionTocNav_bpdk3_900 a{color:var(--text-secondary);font-size:var(--font-size-nav-item);padding:5px 0;line-height:1.35;display:block}._sectionTocNav_bpdk3_900 a[aria-current=location]{color:var(--primary-text);font-weight:700}._sectionTocNav_bpdk3_900 a[data-level="3"]{padding-left:12px}._contentLoading_bpdk3_924{color:var(--text-secondary);text-align:center;padding:4rem 0}._pager_bpdk3_930{margin-top:var(--spacing-lg);padding-top:var(--spacing-lg);justify-content:space-between;gap:var(--spacing-md);border-top:1px solid var(--border-base);font-size:var(--font-size-nav);display:flex}._pager_bpdk3_930 a:last-child{text-align:right;margin-left:auto}._navigationDrawerContent_bpdk3_945{gap:var(--spacing-lg);display:grid}._compactNavigationSection_bpdk3_950{gap:var(--spacing-sm);display:grid}._compactNavigationSection_bpdk3_950>strong{color:var(--text-secondary);font-size:var(--font-size-xs);letter-spacing:.06em}._compactSiteNavigation_bpdk3_961{gap:var(--spacing-xs);grid-template-columns:repeat(3,minmax(0,1fr))}._compactSiteNavigation_bpdk3_961 a{min-height:var(--control-height-lg);text-align:center;padding:8px}._currentChapterSummary_bpdk3_972{padding:var(--spacing-md);border:1px solid var(--border-base);border-radius:var(--radius-md);background:var(--bg-surface);gap:4px;display:grid}._currentChapterSummary_bpdk3_972 span{color:var(--text-secondary);font-size:var(--font-size-xs)}._currentChapterSummary_bpdk3_972 strong{color:var(--text-primary)}._route-loading_bpdk3_990{text-align:center;padding:48px}@media (max-width:1023px){._projectGrid_bpdk3_379{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:767px){._header_bpdk3_23{padding-top:env(safe-area-inset-top)}._headerInner_bpdk3_32{padding-right:max(var(--layout-page-gutter-mobile), env(safe-area-inset-right));padding-left:max(var(--layout-page-gutter-mobile), env(safe-area-inset-left));gap:var(--spacing-sm)}._brand_bpdk3_47 small{display:none}._headerInner_bpdk3_32>:last-child{margin-left:auto}._footer_bpdk3_136,._part_bpdk3_311,._projectGrid_bpdk3_379{grid-template-columns:minmax(0,1fr)}._footer_bpdk3_136{display:grid}._part_bpdk3_311{gap:var(--spacing-md)}._article_bpdk3_532 h2{font-size:var(--font-size-xl)}._article_bpdk3_532 h3{font-size:var(--font-size-lg)}._pager_bpdk3_930{display:grid}._partGroup_bpdk3_603 a,._partGroupSummary_bpdk3_609,._pager_bpdk3_930 a{min-height:var(--control-height-lg);align-items:center;padding-top:10px;padding-bottom:10px}._pager_bpdk3_930 a{display:flex}._searchSuggestions_bpdk3_230 button{min-height:var(--control-height-lg)}._chapterTopline_bpdk3_489{align-items:flex-start}._chapterPage_bpdk3_176{padding-right:max(var(--layout-page-gutter-mobile), env(safe-area-inset-right));padding-left:max(var(--layout-page-gutter-mobile), env(safe-area-inset-left))}._chapterTopline_bpdk3_489{margin-bottom:8px}._readingTime_bpdk3_501{padding-top:1px}._chapterOverview_bpdk3_694{gap:8px}._chapterMeta_bpdk3_703{flex-wrap:wrap;align-items:stretch}._chapterMeta_bpdk3_703>span{white-space:normal;max-width:100%;padding:6px 11px}._chapterCompletion_bpdk3_731{margin-top:var(--spacing-lg)}._chapterCompletion_bpdk3_731 .ant-btn{width:100%}._chapterTitle_bpdk3_539{text-wrap:wrap;margin-bottom:10px;font-size:max(1.75rem,min(8vw,2.125rem))}._article_bpdk3_532 h2{font-size:var(--font-size-xl);margin-top:1.5rem;padding-left:11px}._article_bpdk3_532 h2:before{width:3px;margin-left:-11px}}