.library_page__2_Dda{width:min(1180px,100% - 32px);margin:0 auto;padding:56px 0 88px}.library_categoryHero__H_5mN,.library_hero__2y4LF{max-width:820px;margin-bottom:36px}.library_categoryHero__H_5mN h1,.library_hero__2y4LF h1{margin:8px 0 16px;font-size:clamp(34px,5vw,58px);line-height:1.05;letter-spacing:-.04em}.library_categoryHero__H_5mN p,.library_hero__2y4LF p{max-width:720px;margin:0;color:var(--text-secondary);font-size:19px}.library_categoryHero__H_5mN h1{font-size:clamp(32px,4vw,48px)}.library_eyebrow__C7tI1{color:var(--color-accent-text);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.library_collectionSection__si2Ap{display:grid;grid-template-columns:minmax(220px,.7fr) minmax(0,1.6fr);gap:28px;margin-bottom:52px}.library_collectionHeading__TDkl5 h2{margin:8px 0 10px;font-size:30px}.library_collectionHeading__TDkl5 p{margin:0;color:var(--text-secondary)}.library_collectionGrid__YrrNT{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.library_collectionGrid__YrrNT a{display:flex;min-height:210px;flex-direction:column;padding:24px;border:1px solid var(--border-primary);border-radius:18px;background:radial-gradient(circle at 100% 0,color-mix(in srgb,var(--color-primary) 14%,transparent),transparent 52%),var(--background-primary);color:inherit;text-decoration:none;transition:transform .15s ease,border-color .15s ease}.library_collectionGrid__YrrNT a:hover{transform:translateY(-2px);border-color:var(--color-primary)}.library_collectionGrid__YrrNT span{align-self:flex-start;padding:5px 9px;border-radius:999px;background:var(--background-tertiary);color:var(--text-secondary);font-size:12px;font-weight:700}.library_collectionGrid__YrrNT strong{margin-top:24px;font-size:24px}.library_collectionGrid__YrrNT p{margin:8px 0 20px;color:var(--text-secondary)}.library_collectionGrid__YrrNT small{margin-top:auto;color:var(--color-accent-text);font-weight:750}.library_categoryGrid__4_M00{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:52px}.library_categoryGrid__4_M00 a{display:grid;gap:5px;padding:18px;border:1px solid var(--border-primary);border-radius:14px;background:var(--background-primary);color:inherit;text-decoration:none;transition:transform .15s ease,border-color .15s ease}.library_categoryGrid__4_M00 a:hover{transform:translateY(-2px);border-color:var(--color-primary)}.library_categoryGrid__4_M00 strong{font-size:16px}.library_categoryGrid__4_M00 span{color:var(--text-secondary);font-size:14px}.library_themeSection__pdwVm{display:grid;grid-template-columns:minmax(220px,.65fr) minmax(0,1.8fr);gap:28px;margin-bottom:52px;padding:28px;border:1px solid var(--border-primary);border-radius:18px;background:var(--background-primary)}.library_themeSection__pdwVm h2{margin:8px 0 10px;font-size:28px}.library_themeSection__pdwVm p{margin:0;color:var(--text-secondary)}.library_themeGrid__S30Hw{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.library_themeGrid__S30Hw a{display:grid;gap:3px;padding:13px 14px;border:1px solid var(--border-primary);border-radius:12px;color:inherit;text-decoration:none}.library_themeGrid__S30Hw a:hover,.library_themeGrid__S30Hw a[data-active=true]{border-color:var(--color-primary);background:color-mix(in srgb,var(--color-primary) 8%,var(--background-primary))}.library_themeGrid__S30Hw strong{font-size:14px}.library_themeGrid__S30Hw span{color:var(--text-tertiary);font-size:12px}.library_catalogue__LHaI5{display:grid;gap:22px}.library_catalogueHeader__UGmXr,.library_sectionHeading__Xu80X{display:flex;align-items:flex-end;justify-content:space-between;gap:20px}.library_catalogueHeader__UGmXr h2,.library_sectionHeading__Xu80X h2{margin:0;font-size:28px}.library_catalogueHeader__UGmXr p,.library_sectionHeading__Xu80X p{margin:3px 0 0;color:var(--text-tertiary)}.library_filters__AYCc8{display:flex;flex-wrap:wrap;gap:6px}.library_filters__AYCc8 a{padding:7px 12px;border:1px solid var(--border-primary);border-radius:999px;color:var(--text-secondary);text-decoration:none}.library_filters__AYCc8 a[data-active=true]{border-color:var(--color-primary);background:var(--color-primary);color:var(--color-on-accent)}.library_cardGrid__Jm11S{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.library_card__j8NNU{display:flex;min-height:250px;flex-direction:column;padding:22px;border:1px solid var(--border-primary);border-radius:16px;background:var(--background-primary)}.library_card__j8NNU h2{margin:18px 0 8px;font-size:21px;line-height:1.25}.library_card__j8NNU h2 a{color:inherit;text-decoration:none}.library_card__j8NNU p{margin:0 0 20px;color:var(--text-secondary)}.library_cardMeta__QBiHa,.library_lessonMeta__4rbGI{display:flex;flex-wrap:wrap;gap:6px}.library_cardMeta__QBiHa span,.library_lessonMeta__4rbGI span{padding:4px 8px;border-radius:999px;background:var(--background-tertiary);color:var(--text-secondary);font-size:12px;font-weight:700}.library_cardLink__416y_{margin-top:auto;color:var(--color-accent-text);font-weight:750;text-decoration:none}.library_empty__54R5B{padding:38px;border:1px dashed var(--border-secondary);border-radius:14px;color:var(--text-secondary);text-align:center}.library_breadcrumbs__YLuex{display:flex;gap:8px;margin-bottom:28px;color:var(--text-tertiary);font-size:14px}.library_breadcrumbs__YLuex a{color:var(--color-accent-text);text-decoration:none}.library_lessonHero__LAcFk{margin-bottom:24px;padding:26px 28px;border:1px solid var(--border-primary);border-radius:16px;background:radial-gradient(circle at 90% 0,color-mix(in srgb,var(--color-primary) 18%,transparent),transparent 42%),var(--background-primary)}.library_lessonHero__LAcFk h1{max-width:850px;margin:14px 0 10px;font-size:clamp(30px,4vw,46px);line-height:1.08;letter-spacing:-.035em}.library_lessonHero__LAcFk>p{max-width:720px;margin:0;color:var(--text-secondary);font-size:16px;line-height:1.6}.library_primaryCta__ozyPR{display:inline-flex;min-height:var(--control-height-lg);align-items:center;justify-content:center;padding:var(--control-padding-lg);border-radius:var(--control-radius);background:var(--color-primary);color:var(--color-on-accent);font-weight:800;text-decoration:none}.library_lessonLayout__l5j3_{display:block;min-width:0}.library_studyMaterial__L3msa,.library_studyPractice__PStHm{min-width:0}.library_studyPractice__PStHm,.library_studySubsection___tJiy,.library_studyTheory__TdWHq{min-width:0;padding:26px}.library_studySubsection___tJiy{border-top:1px solid var(--border-primary)}.library_studyPractice__PStHm{padding-bottom:28px}.library_lessonMain__CJooY{display:grid;min-width:0;gap:18px}.library_lessonBlock__zcDip,.library_lessonCta__kRWoN{min-width:0;padding:26px;border:1px solid var(--border-primary);border-radius:16px;background:var(--background-primary)}.library_lessonCta__kRWoN{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-top:54px}.library_lessonCta__kRWoN>div{display:grid;max-width:680px;gap:8px}.library_lessonCta__kRWoN strong{font-size:22px}.library_lessonCta__kRWoN p{margin:0;color:var(--text-secondary)}.library_lessonCta__kRWoN .library_primaryCta__ozyPR{flex-shrink:0}.library_sectionHeading__Xu80X{margin-bottom:20px}.library_sectionHeading__Xu80X>div{display:grid;min-width:0;gap:4px}.library_sectionHeading__Xu80X span{color:var(--color-accent-text);font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.library_sectionHeading__Xu80X strong{flex-shrink:0;color:var(--text-secondary)}.library_keywordGrid__4WXBv{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.library_keywordGrid__4WXBv>div{display:grid;gap:2px;padding:14px;border-radius:10px;background:var(--background-secondary)}.library_keywordGrid__4WXBv span{color:var(--text-secondary)}.library_keywordGrid__4WXBv small{margin-top:5px;color:var(--text-tertiary)}.library_localNotice__VsyyO{margin:-6px 0 20px;padding-left:12px;border-left:2px solid var(--border-secondary);color:var(--text-secondary);font-size:13px;line-height:1.5}.library_related__uxM0K{margin-top:54px}.library_related__uxM0K>h2{margin-bottom:18px;font-size:28px}@media(max-width:900px){.library_cardGrid__Jm11S,.library_categoryGrid__4_M00{grid-template-columns:repeat(2,1fr)}.library_collectionSection__si2Ap,.library_themeSection__pdwVm{grid-template-columns:1fr}}@media(max-width:620px){.library_page__2_Dda{width:min(100% - 24px,1180px);padding-top:32px}.library_cardGrid__Jm11S,.library_categoryGrid__4_M00,.library_collectionGrid__YrrNT,.library_keywordGrid__4WXBv,.library_themeGrid__S30Hw{grid-template-columns:1fr}.library_catalogueHeader__UGmXr{align-items:flex-start;flex-direction:column}.library_lessonBlock__zcDip,.library_lessonCta__kRWoN,.library_lessonHero__LAcFk{padding:20px}.library_studyPractice__PStHm,.library_studySubsection___tJiy,.library_studyTheory__TdWHq{padding:20px 16px}.library_sectionHeading__Xu80X{align-items:flex-start;flex-direction:column;gap:8px}.library_lessonCta__kRWoN{align-items:stretch;flex-direction:column}.library_primaryCta__ozyPR{width:100%;text-align:center}}.library_studentHint__ZS7zo{margin-top:8px;color:var(--text-tertiary);font-size:13px}.LessonStudyTabs_shell__8Dw5j{min-width:0;scroll-margin-top:calc(var(--app-navbar-height) + 18px);border:1px solid var(--border-primary);border-radius:16px;background:var(--background-primary)}.LessonStudyTabs_tabBar__mQpiq{position:sticky;top:var(--app-navbar-height);z-index:20;padding:8px;border-bottom:1px solid var(--border-primary);border-radius:15px 15px 0 0;background:color-mix(in srgb,var(--background-primary) 92%,transparent);-webkit-backdrop-filter:blur(12px) saturate(140%);backdrop-filter:blur(12px) saturate(140%)}.LessonStudyTabs_tabList__Yihov{display:grid;grid-auto-columns:minmax(0,1fr);grid-auto-flow:column;gap:6px;padding:4px;border-radius:var(--control-radius);background:var(--background-secondary)}.LessonStudyTabs_tab__Leq_Q{display:inline-flex;min-width:0;min-height:var(--control-height-md);align-items:center;justify-content:center;gap:8px;padding:var(--control-padding-md);border:0;border-radius:var(--control-radius-sm);background:rgba(0,0,0,0);color:var(--text-secondary);cursor:pointer;font:inherit;font-size:var(--control-font-md);font-weight:var(--control-weight);line-height:1.2;transition:background .15s ease,color .15s ease,box-shadow .15s ease}.LessonStudyTabs_tab__Leq_Q>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.LessonStudyTabs_tab__Leq_Q>strong{min-width:22px;padding:3px 7px;border-radius:999px;background:var(--background-tertiary);color:var(--text-tertiary);font-size:11px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.LessonStudyTabs_tab__Leq_Q:hover:not([aria-selected=true]){color:var(--text-primary)}.LessonStudyTabs_tab__Leq_Q[aria-selected=true]{background:var(--background-primary);color:var(--text-primary);box-shadow:0 1px 3px color-mix(in srgb,var(--text-primary) 10%,transparent)}.LessonStudyTabs_tab__Leq_Q[aria-selected=true]>strong{background:color-mix(in srgb,var(--color-primary) 16%,var(--background-secondary));color:var(--color-accent-text)}.LessonStudyTabs_tab__Leq_Q:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.LessonStudyTabs_panel__EuoSV{min-width:0;outline:none}.LessonStudyTabs_nextAction__H9wci{display:flex;justify-content:flex-end;padding:18px 24px 22px;border-top:1px solid var(--border-primary)}.LessonStudyTabs_nextAction__H9wci button{display:inline-flex;min-height:var(--control-height-md);align-items:center;justify-content:center;gap:10px;padding:var(--control-padding-md);border:0;border-radius:var(--control-radius);background:var(--color-primary);color:var(--color-on-accent);cursor:pointer;font:inherit;font-size:var(--control-font-md);font-weight:var(--control-weight)}@media(max-width:620px){.LessonStudyTabs_shell__8Dw5j{border-radius:12px}.LessonStudyTabs_tabBar__mQpiq{padding:6px;border-radius:11px 11px 0 0}.LessonStudyTabs_tab__Leq_Q{position:relative;padding:0 4px;font-size:var(--control-font-sm)}.LessonStudyTabs_tab__Leq_Q>strong{position:absolute;top:-4px;right:-2px;min-width:16px;padding:1px 4px;font-size:10px;line-height:1.3}.LessonStudyTabs_nextAction__H9wci{padding:16px}.LessonStudyTabs_nextAction__H9wci button{width:100%}}.MarkdownContent_root__m_Vkf{color:var(--text-primary);line-height:1.7;overflow-wrap:anywhere}.MarkdownContent_root__m_Vkf>:first-child{margin-top:0}.MarkdownContent_root__m_Vkf>:last-child{margin-bottom:0}.MarkdownContent_root__m_Vkf h1,.MarkdownContent_root__m_Vkf h2,.MarkdownContent_root__m_Vkf h3{margin:22px 0 10px;color:var(--text-primary);line-height:1.25}.MarkdownContent_root__m_Vkf h1{font-size:28px}.MarkdownContent_root__m_Vkf h2{font-size:22px}.MarkdownContent_root__m_Vkf h3{font-size:18px}.MarkdownContent_root__m_Vkf p{margin:0 0 14px}.MarkdownContent_root__m_Vkf ol,.MarkdownContent_root__m_Vkf ul{margin:0 0 14px;padding-left:24px}.MarkdownContent_root__m_Vkf li+li{margin-top:6px}.MarkdownContent_root__m_Vkf blockquote{margin:0 0 14px;padding:10px 14px;border-left:3px solid var(--color-primary);border-radius:0 8px 8px 0;background:var(--background-secondary);color:var(--text-secondary)}.MarkdownContent_root__m_Vkf pre{margin:0 0 14px;padding:14px;border:1px solid var(--border-primary);border-radius:8px;background:var(--background-secondary);overflow-x:auto}.MarkdownContent_root__m_Vkf code{padding:2px 5px;border-radius:5px;background:var(--background-secondary);color:var(--text-primary);font-family:var(--font-mono,"SFMono-Regular",Consolas,monospace);font-size:.92em}.MarkdownContent_root__m_Vkf pre code{padding:0;background:rgba(0,0,0,0)}.MarkdownContent_root__m_Vkf a{color:var(--color-accent-text);font-weight:700}.MarkdownContent_root__m_Vkf hr{margin:18px 0;border:0;border-top:1px solid var(--border-primary)}.MarkdownContent_root__m_Vkf .MarkdownContent_image__C_00c{display:block;max-width:100%;height:auto;margin:4px 0;border:1px solid var(--border-primary);border-radius:8px}.MarkdownContent_root__m_Vkf .MarkdownContent_videoWrap__Ybr79{position:relative;width:100%;aspect-ratio:16/9;margin:0 0 14px;overflow:hidden;border:1px solid var(--border-primary);border-radius:8px;background:var(--background-tertiary)}.MarkdownContent_root__m_Vkf .MarkdownContent_videoWrap__Ybr79 iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.MarkdownContent_root__m_Vkf .MarkdownContent_tableWrap__HiSjw{margin:0 0 16px;overflow-x:auto}.MarkdownContent_root__m_Vkf table{width:100%;min-width:520px;border-collapse:collapse;font-size:14px}.MarkdownContent_root__m_Vkf td,.MarkdownContent_root__m_Vkf th{padding:9px 11px;border:1px solid var(--border-primary);text-align:left;vertical-align:top}.MarkdownContent_root__m_Vkf th{background:var(--background-secondary);font-weight:800}.MarkdownContent_translated__AeVpY{border-bottom:1px dotted var(--color-primary);color:var(--text-primary);cursor:help}.MarkdownContent_root__m_Vkf .MarkdownContent_ruleDiagram__01Ia9{margin:4px 0 24px;padding:18px;border:1px solid var(--border-primary);border-radius:16px;background:radial-gradient(circle at 100% 0,color-mix(in srgb,var(--color-primary) 12%,transparent),transparent 42%),var(--background-secondary)}.MarkdownContent_root__m_Vkf .MarkdownContent_ruleDiagram__01Ia9>h3{margin:0 0 14px;font-size:18px;letter-spacing:-.01em}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramGrid__6mj9R{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramItem__qBTEx{display:grid;min-width:0;grid-template-columns:auto minmax(0,1fr);gap:10px;padding:14px;border:1px solid var(--border-primary);border-top:3px solid var(--color-primary);border-radius:12px;background:var(--background-primary)}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramItem__qBTEx:nth-child(4n+2){border-top-color:var(--color-success)}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramItem__qBTEx:nth-child(4n+2) .MarkdownContent_diagramNumber__Mu_lh{background:var(--color-success)}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramItem__qBTEx:nth-child(4n+3){border-top-color:var(--color-warning)}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramItem__qBTEx:nth-child(4n+3) .MarkdownContent_diagramNumber__Mu_lh{background:var(--color-warning);color:var(--text-primary)}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramItem__qBTEx:nth-child(4n+4){border-top-color:var(--color-info)}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramItem__qBTEx:nth-child(4n+4) .MarkdownContent_diagramNumber__Mu_lh{background:var(--color-info)}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramItem__qBTEx .MarkdownContent_diagramRule__XyIQN{display:block;margin-top:5px;font-size:16px;font-weight:800;line-height:1.35}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramItem__qBTEx p{margin:8px 0 0;color:var(--text-secondary);font-size:14px;line-height:1.45}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramNumber__Mu_lh{display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;border-radius:999px;background:var(--color-primary);color:var(--color-on-accent);font-size:13px;font-weight:800}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramLabel__f2Tzn{color:var(--text-tertiary);font-size:11px;font-weight:800;letter-spacing:.07em;text-transform:uppercase}.MarkdownContent_root__m_Vkf .MarkdownContent_cardGrid__hWCSp{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin:0 0 16px}.MarkdownContent_root__m_Vkf .MarkdownContent_card__KCrTb{padding:14px 16px;border:1px solid var(--border-primary);border-radius:10px;background:var(--background-secondary)}.MarkdownContent_root__m_Vkf .MarkdownContent_card__KCrTb>:first-child{margin-top:0}.MarkdownContent_root__m_Vkf .MarkdownContent_card__KCrTb>:last-child{margin-bottom:0}.MarkdownContent_root__m_Vkf .MarkdownContent_card__KCrTb h3{margin:0 0 8px;font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--text-tertiary)}.MarkdownContent_root__m_Vkf .MarkdownContent_note__B7yl9,.MarkdownContent_root__m_Vkf .MarkdownContent_reference__L29Li{display:block;margin:0 0 16px;padding:14px 16px;border:1px solid var(--border-primary);border-left:3px solid var(--color-warning);border-radius:10px;background:var(--color-warning-bg)}.MarkdownContent_root__m_Vkf .MarkdownContent_note__B7yl9>:first-child,.MarkdownContent_root__m_Vkf .MarkdownContent_reference__L29Li>:first-child{margin-top:0}.MarkdownContent_root__m_Vkf .MarkdownContent_note__B7yl9>:last-child,.MarkdownContent_root__m_Vkf .MarkdownContent_reference__L29Li>:last-child{margin-bottom:0}.MarkdownContent_root__m_Vkf .MarkdownContent_note__B7yl9 h3,.MarkdownContent_root__m_Vkf .MarkdownContent_reference__L29Li h3{margin:0 0 6px;font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--color-warning-text)}.MarkdownContent_root__m_Vkf .MarkdownContent_reference__L29Li{border-left-color:var(--color-info);background:var(--color-info-bg)}.MarkdownContent_root__m_Vkf .MarkdownContent_reference__L29Li h3{color:var(--color-info-dark)}.MarkdownContent_root__m_Vkf .MarkdownContent_blockTitle__VGyWI{grid-column:1/-1;margin:0;font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--text-tertiary)}.MarkdownContent_root__m_Vkf .MarkdownContent_exampleGrid__Z40Oc,.MarkdownContent_root__m_Vkf .MarkdownContent_mistakeGrid__zXTwT{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin:0 0 16px}.MarkdownContent_root__m_Vkf .MarkdownContent_example__R_NuS{padding:12px 14px;border:1px solid var(--border-primary);border-radius:10px;background:var(--background-secondary)}.MarkdownContent_root__m_Vkf .MarkdownContent_example__R_NuS p{margin:0 0 6px}.MarkdownContent_root__m_Vkf .MarkdownContent_example__R_NuS p:last-child{margin-bottom:0}.MarkdownContent_root__m_Vkf .MarkdownContent_correct__sN2eW:before{content:"✓ ";font-weight:800;color:var(--color-success-text)}.MarkdownContent_root__m_Vkf .MarkdownContent_wrong__KgTyF:before{content:"✗ ";font-weight:800;color:var(--error-text)}.MarkdownContent_root__m_Vkf .MarkdownContent_wrong__KgTyF{color:var(--text-secondary);text-decoration:line-through;text-decoration-color:var(--color-error)}.MarkdownContent_root__m_Vkf .MarkdownContent_exampleNote__2duo_{font-size:14px;color:var(--text-secondary)}.MarkdownContent_root__m_Vkf .MarkdownContent_chipRow__KZ_dJ{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 16px}.MarkdownContent_root__m_Vkf .MarkdownContent_chip__U_5Zm{padding:4px 10px;border:1px solid var(--border-primary);border-radius:999px;background:var(--background-tertiary);font-size:13px;color:var(--text-secondary)}@media(max-width:620px){.MarkdownContent_root__m_Vkf .MarkdownContent_ruleDiagram__01Ia9{padding:14px}.MarkdownContent_root__m_Vkf .MarkdownContent_diagramGrid__6mj9R{grid-template-columns:1fr}}