:root{--cardRadius:12px;--buttonRadius:8px;--learningCardXPadd:20px;--learningCardBPadd:24px;--elevationShadow2:0 2px 8px #00000021,0 0 1px #00000030;--learningContentMaxWidth:1000px}.learning-page-container{position:relative;min-height:100dvh;color:var(--txt-primary);background:var(--page-bg)}.learning-inner-container,.practice-main-section{position:relative;width:100%;display:flex}.practice-main-section{min-height:100dvh;flex-direction:column;justify-content:space-between;overflow-x:hidden}.practice-main-section::-webkit-scrollbar{display:none}.practice-main-section h2{scroll-margin-top:76px}.practice-main-content{width:100%;max-width:var(--learningContentMaxWidth);margin:0 auto}.learning-inner-wrapper{padding:4px 0 24px;flex:1 1}.practice-main-inner{position:relative;width:100%;height:100%;padding:80px 20px 0}@media (min-width:480px){.practice-main-inner{padding:80px 30px 0}}@media (min-width:576px){.practice-main-inner{padding:80px 40px 0}}@media (min-width:768px){.practice-main-inner{padding:80px 40px 0}}@media (min-width:992px){.practice-main-inner{padding:80px 50px 0}}@media (min-width:1200px){.practice-main-inner{padding:80px 40px 0}.practice-main-content{width:95%}}.practice-title{font-size:24px;font-weight:700;color:var(--text-dark);padding-bottom:32px;margin:0}@supports (-webkit-hyphens:none){.practice-title{font-weight:620}}@media (min-width:992px){.practice-title{font-size:30px}}.practice-card{background:var(--card-bg);border-radius:var(--cardRadius);box-shadow:var(--elevationShadow2)}.practice-card-head{padding:12px var(--learningCardXPadd);border-bottom:1px solid var(--border-color)}.practice-card-title{color:var(--txt-intense);font-weight:600}.practice-card-title svg{margin-right:8px;font-size:20px;color:var(--txt-brand)}.practice-card-body{padding:16px var(--learningCardXPadd) var(--learningCardBPadd);color:var(--txt-intense);background:var(--card-bg)}.practice-card-body hr{border-color:var(--txt-disabled)!important}.apti-text-content{color:var(--txt-intense)}.apti-text-content table{border-color:var(--txt-disabled)}.apti-text-content .lrn-summary li::marker,.apti-text-content .lrn-tricks li::marker{color:var(--txt-primary)}.practice-card-mock-grid{display:grid;grid-gap:20px 24px;gap:20px 24px}@media (min-width:768px){.practice-card-mock-grid.is-grid{grid-template-columns:auto 220px;align-items:center}}.premium-badge{padding:3px 10px;font-size:12px;font-weight:500;color:var(--txt-btn);background:linear-gradient(90deg,#6d4cff,#1e90ff);background-repeat:no-repeat;background-size:100% 100%;border-radius:12px;margin-left:16px}[data-theme=dark] .premium-badge{background:linear-gradient(90deg,#5740bf,#337fcc)}.test-history-title{justify-content:space-between;padding-bottom:4px;margin-bottom:16px;color:var(--txt-intense);font-weight:500}.test-history-title .txt-theme-secondary{color:var(--txt-secondary)}.skeleton-item{background:linear-gradient(90deg,var(--border-color) 25%,var(--secondary-hover-bg) 50%,var(--border-color) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite;border-radius:var(--buttonRadius)}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.module-error{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;text-align:center;padding:40px}.module-error-image{max-width:300px;margin-bottom:24px}.module-error p{font-size:17px;color:var(--txt-primary);margin-top:16px}.practice-question-toggle-btn{color:var(--txt-primary);background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--buttonRadius)}.practice-question-toggle-btn:hover{background:var(--secondary-hover-bg)}.practice-question-toggle-btn.active{border-bottom:3px solid var(--btn-bg)}.practice-bottom-navigation-outer{position:-webkit-sticky;position:sticky;bottom:8px;z-index:99;padding:0 var(--dboardMainContentXAxisPadd);width:100%;max-width:var(--learningContentMaxWidth);margin:0 auto}@media (min-width:576px){.practice-bottom-navigation-outer{display:none}}.practice-bottom-navigation-inner{--bottomNavHeight:40px;width:100%;display:flex;align-items:center;justify-content:center;flex-direction:row}.practice-bottom-module-nav{width:var(--bottomNavHeight);height:var(--bottomNavHeight);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--txt-brand);background-color:var(--card-bg);border-radius:5px;border:1px solid var(--border-color);box-shadow:0 0 3px rgba(0,0,0,.1);cursor:pointer}.practice-bottom-module-nav.non-clickable{cursor:not-allowed;opacity:.6}.practice-bottom-module-nav:not(.non-clickable):hover{background-color:var(--secondary-hover-bg)}.practice-bottom-section-bars-wrapper{flex:1 1;display:flex;align-items:center;justify-content:center;border-radius:5px;border:1px solid var(--border-color);box-shadow:0 0 3px rgba(0,0,0,.1);overflow:hidden}.practice-bottom-section-bar{flex:1 1;display:flex;align-items:center;justify-content:center;height:var(--bottomNavHeight);padding:6px;color:var(--txt-intense);font-size:15px;background-color:var(--card-bg);border-left:1px solid var(--border-color);cursor:pointer}.practice-bottom-section-bar:first-child{border-left:none}.practice-bottom-section-bar:hover{background-color:var(--secondary-hover-bg)}.practice-bottom-section-bar svg{font-size:20px;color:var(--txt-brand)}@media (min-width:360px){:root{--dboardMainContentXAxisPadd:20px}}@media (min-width:481px){:root{--learningCardXPadd:20px;--learningCardBPadd:24px}}@media (min-width:576px){:root{--dboardMainContentXAxisPadd:35px}}@media (min-width:1200px){:root{--learningCardXPadd:24px}}@media (min-width:1400px){:root{--learningContentMaxWidth:1300px;--dboardMainContentXAxisPadd:40px}.practice-main-content{width:100%;display:flex;flex:1 1}}.mw-75ch{max-width:75ch}.txt-theme-primary{color:var(--txt-primary)}.txt-theme-secondary{color:var(--txt-secondary)}.txt-theme-brand{color:var(--txt-brand)}.common-font{font-weight:600}.gap-2{gap:8px}.stats-toggler{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 12px;font-size:16px;font-weight:500;line-height:normal;border-radius:25px;cursor:not-allowed;color:var(--txt-intense);background:transparent;border:1px solid var(--border-color);transition:background .2s}.stats-toggler svg{font-size:18px}.stats-toggler.points svg{color:var(--solid-yellow-color)}.stats-toggler.streak svg{color:var(--solid-orange-color)}@supports (-webkit-hyphens:none){.stats-toggler{font-weight:520}}@media (min-width:360px){.stats-toggler{padding:8px 12px}.stats-toggler svg{font-size:18px}}.practice-side-menu-container{position:fixed;top:0;left:0;width:var(--dboardSideNavWidth,260px);height:100dvh;background:var(--card-bg,#fff);border-right:1px solid var(--border-color,#e5e7eb);z-index:998;transform:translateX(-100%);transition:transform .3s ease}.practice-side-menu-container.mobile-open{transform:translateX(0)}@media (min-width:992px){.practice-side-menu-container.landscape-open{transform:translateX(0)}}.side-menu-overlay{position:fixed;inset:0;background:#00000030;z-index:997;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .3s ease,visibility .3s ease}.side-menu-overlay.show{opacity:1;visibility:visible;pointer-events:auto}@media (min-width:992px){.side-menu-overlay{display:none!important}}.practice-side-action-wrapper{width:100%;max-width:260px;height:100%;display:flex;flex-direction:column;overflow:hidden;background:var(--card-bg,#fff)}.side-nav-header{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 16px;border-bottom:1px solid var(--border-color,#e5e7eb);flex-shrink:0;background:var(--card-bg,#fff)}.side-nav-header .header-logo{display:inline-flex;align-items:center;text-decoration:none}.side-nav-header .nav-toggler{display:flex;align-items:center;justify-content:center;width:36px;height:36px;font-size:18px;color:var(--txt-intense,#1f2937);background:transparent;border:1px solid var(--border-color,#e5e7eb);border-radius:8px;cursor:pointer;transition:all .2s;padding:0}.side-nav-header .nav-toggler:hover{background:var(--pill-hover-bg,#f9fafb)}.side-nav-header .nav-toggler svg{display:block}.side-menu-wrapper-inner{flex:1 1;overflow-y:auto;overflow-x:hidden;padding-bottom:48px}.side-menu-wrapper-inner::-webkit-scrollbar{width:6px;display:none}.side-menu-wrapper-inner::-webkit-scrollbar-track{background:transparent}.side-menu-wrapper-inner::-webkit-scrollbar-thumb{background:var(--brand-primary-medium);border-radius:3px}.side-menu-wrapper-inner::-webkit-scrollbar-thumb:hover{background:var(--brand-primary-medium)}.syllabus-wrapper{padding:0}.syllabus-wrapper::-webkit-scrollbar{display:none}.syllabus-group-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;font-size:14px;font-weight:600;color:var(--txt-intense,#1f2937);cursor:pointer;transition:background .2s;-webkit-user-select:none;-moz-user-select:none;user-select:none}.syllabus-group-head svg{font-size:16px;transition:transform .2s;color:var(--text-secondary,#6b7280)}.syllabus-group-body{padding:0}.syllabus-item{display:flex;align-items:center;gap:8px;padding:12px 16px;font-size:14px;color:var(--txt-primary);text-decoration:none;cursor:pointer;transition:all .2s;border-left:3px solid transparent}.syllabus-item.active{background:rgba(59,130,246,.1);color:var(--lang-color,#3b82f6);border-left-color:var(--lang-color,#3b82f6);font-weight:600}.syllabus-item.upcoming{cursor:not-allowed}.syllabus-icon-wrapper{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;font-size:16px;flex-shrink:0;color:currentColor}.syllabus-icon-wrapper svg{display:block}.syllabus-text{flex:1 1;line-height:1.4;word-wrap:break-word}.syllabus-course-title{flex:1 1}.syllabus-cta-container{padding:16px}.user-cta-btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;height:40px;padding:0 16px;font-size:14px;font-weight:600;color:#fff;background:var(--btn-bg);border:none;border-radius:8px;cursor:pointer;transition:all .2s}.user-cta-btn svg{font-size:16px}@media (min-width:992px){body:has(.practice-side-menu-container.landscape-open) .practice-main-section{margin-left:var(--dboardSideNavWidth,260px);transition:margin-left .3s ease}body:has(.practice-side-menu-container.landscape-open) .practice-main-header{left:var(--dboardSideNavWidth,260px);width:calc(100% - var(--dboardSideNavWidth, 260px))}}@media (min-width:768px){.syllabus-group-head{padding:12px 20px;font-size:14px}.syllabus-item{font-size:14px}}.syllabus-course-header{flex-shrink:0;border-bottom:1px solid var(--border-color,#e5e7eb);background:var(--card-bg,#fff)}.syllabus-course-header .syllabus-item{padding:12px 16px;border-left:none}.syllabus-course-header .syllabus-item:hover{background:var(--pill-hover-bg,#f9fafb)}.breadcrumb-nav{width:100%}a.breadcrumb-link{color:"red"}.breadcrumb-nav .breadcrumbs-container{position:relative;display:flex;flex-wrap:wrap;align-items:center;row-gap:8px;margin-bottom:16px;font-size:15px}@media (min-width:992px){.breadcrumb-nav .breadcrumbs-container{margin-bottom:unset}}.breadcrumb-nav .breadcrumb-list-item{position:relative;display:inline-flex;align-items:center;line-height:normal}.breadcrumb-nav .breadcrumb-list-item:not(:first-child){margin-left:8px}.breadcrumb-nav .breadcrumb-connector{margin-right:8px;font-size:10px;color:var(--txt-secondary,#6c757d)}[data-theme=dark] .breadcrumb-nav .breadcrumb-connector{color:var(--txtGreyColor,#999)}.breadcrumb-nav .breadcrumb-home{display:inline-flex;align-items:center;cursor:pointer;color:var(--txt-secondary,#6c757d);transition:color .2s}.breadcrumb-nav .breadcrumb-home:hover{color:var(--txtBrandColor,#635bff)}[data-theme=dark] .breadcrumb-nav .breadcrumb-home{color:var(--txtGreyColor,#999)}[data-theme=dark] .breadcrumb-nav .breadcrumb-home:hover{color:#8781f7}.breadcrumb-nav .breadcrumb-ellipsis{display:inline-block;cursor:pointer;color:var(--txt-secondary,#6c757d);font-size:18px;padding:0 4px;transition:color .2s}.breadcrumb-nav 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#00000021);z-index:50}[data-theme=dark] .breadcrumb-nav .breadcrumb-dropdown{background:#212020;border-color:#383838;box-shadow:0 1px 3px #04040466}.breadcrumb-nav .breadcrumb-drop-item{padding:8px 16px;font-size:15px;cursor:pointer;color:var(--txt-primary);transition:background .2s}.breadcrumb-nav .breadcrumb-drop-item:hover{background:var(--secondary-hover-bg,#f8f9fa)}[data-theme=dark] .breadcrumb-nav .breadcrumb-drop-item{color:#ccc}[data-theme=dark] .breadcrumb-nav .breadcrumb-drop-item:hover{background:#2c2c2c}.desktop-breadcrumbs,.mobile-breadcrumbs{display:none}@media (min-width:992px){.desktop-breadcrumbs{display:block}.mobile-breadcrumbs{display:none}}@media 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(min-width:360px){.header-right-cta{gap:12px}}.header-pill{display:flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--border-color);border-radius:9999px;background-color:var(--pill-bg);height:40px;white-space:nowrap}.pill-text{font-weight:500;font-size:16px;color:var(--text-primary)}.icon-star{color:var(--star-color);font-size:16px}.icon-fire{color:var(--fire-color);font-size:16px}.icon-lang{color:var(--lang-color);font-size:18px}.language-pill-btn{cursor:pointer;transition:background .2s}.language-pill-btn:hover{background-color:#f9fafb}.theme-toggle-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--border-color);border-radius:50%;background-color:var(--pill-bg);color:var(--text-secondary);cursor:pointer;font-size:20px;transition:all .2s}.theme-toggle-btn:hover{background-color:#f9fafb;color:var(--text-primary);cursor:not-allowed}@media (max-width:991px){.mobile-nav-toggler{display:flex}.desktop-nav-toggler{display:none}}.language-dropdown-container{position:relative}@media (max-width:576px){.language-dropdown-container{display:none}}.language-toggle-btn{display:flex;align-items:center;gap:6px;padding:8px 12px;font-size:14px;font-weight:500;color:var(--txt-primary);background:transparent;border:1px solid var(--border-color);border-radius:var(--button-radius);cursor:pointer;transition:background var(--hover-transition-duration)}.language-toggle-btn:hover{background:var(--hover-bg)}.language-toggle-btn svg{font-size:18px}.language-short{text-transform:uppercase}.language-label{display:none;text-transform:capitalize}@media (min-width:576px){.language-short{display:none}.language-label{display:inline}}.language-panel{position:absolute;top:calc(100% + 8px);right:0;min-width:140px;background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--card-radius);box-shadow:0 4px 12px rgba(0,0,0,.15);z-index:1000;overflow:hidden}.language-option{display:block;width:100%;padding:12px 16px;font-size:14px;text-align:left;color:var(--txt-primary);background:transparent;border:none;cursor:pointer;transition:background var(--hover-transition-duration)}.language-option:hover{background:var(--hover-bg)}.language-option.active{background:var(--active-bg);color:var(--txt-brand);font-weight:500}ol,ul{margin-bottom:0!important}.lrn-introduction{border-radius:8px;overflow:hidden;margin-bottom:48px;background:#fff;border:1px solid var(--border-color,#e5e7eb)}.lrn-introduction h2{margin:0!important;padding:12px 20px!important;font-size:16px!important;font-weight:600!important;background:#f8fafc;border-bottom:1px solid var(--border-color,#e5e7eb);color:var(--txt-intense)}[data-theme=dark] .lrn-introduction{background:#1f2933;border-color:#334155}[data-theme=dark] .lrn-introduction h2{background:#1e293b;border-bottom-color:#334155}.lrn-content{line-height:1.75;color:var(--txt-intense)}.lrn-content h1,.lrn-content h2{font-weight:600;color:var(--txt-intense)}.lrn-txt-content-h2{font-size:22px;font-weight:600;padding-bottom:0;margin-bottom:15px}.lrn-content h4{font-size:17px;font-weight:500;margin:12px 0 4px;padding-bottom:0}.lrn-content p{margin-bottom:8px}.lrn-content ol,.lrn-content ul{padding-left:0;list-style:none}.lrn-content ul{padding-left:0}.lrn-pattern,.lrn-summary,.question-box,.solution-box{border-radius:8px;overflow:hidden;margin-bottom:48px}.box-title{margin:0!important;padding:12px 20px!important;font-size:15px!important;font-weight:600!important;color:var(--txt-intense)}.lrn-pattern{background:#f7faff;border:1px solid #a6d1ff}.lrn-pattern .box-title{background:#e5edff;border-bottom:1px solid #a6d1ff}[data-theme=dark] .lrn-pattern{background:#1c2330;border-color:#2b4661}[data-theme=dark] .lrn-pattern 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