.student-sidebar-container{z-index:20!important;flex:0 0 200px!important;align-self:flex-start!important;width:200px!important;min-width:200px!important;max-width:200px!important;height:calc(100vh - 72px)!important;min-height:calc(100vh - 72px)!important;max-height:calc(100vh - 72px)!important;position:sticky!important;top:0!important;overflow:hidden!important}.student-sidebar-scroll-area{flex:auto!important;min-height:0!important;overflow:hidden auto!important}.student-sidebar-footer{z-index:30!important;flex:none!important;margin-top:0!important;position:relative!important}@media (max-width:900px){.student-sidebar-container{flex-basis:72px!important;width:72px!important;min-width:72px!important;max-width:72px!important;height:calc(100vh - 64px)!important;min-height:calc(100vh - 64px)!important;max-height:calc(100vh - 64px)!important}}@media (max-width:768px){.student-sidebar-container{flex-basis:72px!important;width:72px!important;min-width:72px!important;max-width:72px!important}}@media (max-width:480px){.student-sidebar-container{flex-basis:58px!important;width:58px!important;min-width:58px!important;max-width:58px!important;height:calc(100vh - 60px)!important;min-height:calc(100vh - 60px)!important;max-height:calc(100vh - 60px)!important}}@media (prefers-reduced-motion:reduce){.student-sidebar-container{scroll-behavior:auto!important}}.student-sidebar-topic.active .student-sidebar-topic-current{color:#9a3412!important;background:#fff!important;border:1px solid #fdba74!important;font-weight:900!important}.student-sidebar-topic.active .student-sidebar-topic-dot{color:#fff!important;background:#f97316!important;box-shadow:0 0 0 2px #fed7aa!important}.student-sidebar-container{--sidebar-width-modern:260px;--sidebar-collapsed-modern:72px;flex:0 0 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span{background:currentColor;border-radius:2px;width:19px;height:2px;display:block}.student-sidebar-mobile-overlay{z-index:998;opacity:0;pointer-events:none;transition:opacity var(--transition-normal);background:#0f172a6b;display:block;position:fixed;inset:0}.student-sidebar-mobile-overlay.is-visible{opacity:1;pointer-events:auto}.student-sidebar-container{transform:translate(-105%);width:min(80vw,300px)!important;min-width:min(80vw,300px)!important;max-width:min(80vw,300px)!important;height:100vh!important;min-height:100vh!important;max-height:100vh!important;transition:transform var(--transition-normal)!important;position:fixed!important;top:0!important;bottom:0!important;left:0!important;box-shadow:12px 0 35px #0f172a29!important}.student-sidebar-container.is-mobile-open{transform:translate(0)}.student-sidebar-container.is-collapsed{width:min(80vw,300px)!important;min-width:min(80vw,300px)!important;max-width:min(80vw,300px)!important}.student-sidebar-container.is-mobile-open .student-sidebar-nav-label,.student-sidebar-container.is-mobile-open .student-sidebar-section-label,.student-sidebar-container.is-mobile-open .student-sidebar-chapter-info,.student-sidebar-container.is-mobile-open .student-sidebar-submenu,.student-sidebar-container.is-mobile-open .student-sidebar-footer{display:revert}.student-sidebar-container.is-mobile-open .student-sidebar-nav-item{justify-content:flex-start!important}.student-sidebar-container.is-mobile-open .student-sidebar-nav-label{display:block!important}.student-sidebar-container.is-mobile-open .student-sidebar-submenu{display:flex!important}.student-sidebar-container.is-mobile-open .student-sidebar-footer{display:block!important}.student-sidebar-container.is-mobile-open .student-sidebar-brand{display:inline-flex!important}.student-sidebar-container.is-mobile-open .student-sidebar-menu-btn span{opacity:1!important;transform:none!important}.student-sidebar-container.is-mobile-open .student-sidebar-menu-btn span:first-child{transform:translateY(6px)rotate(45deg)!important}.student-sidebar-container.is-mobile-open .student-sidebar-menu-btn span:nth-child(2){opacity:0!important}.student-sidebar-container.is-mobile-open .student-sidebar-menu-btn span:nth-child(3){transform:translateY(-6px)rotate(-45deg)!important}}@media (prefers-reduced-motion:reduce){.student-sidebar-container,.student-sidebar-nav-item,.student-sidebar-topic,.student-sidebar-chapter-btn,.student-sidebar-menu-btn,.student-sidebar-mobile-overlay{transition:none!important}}.student-shell{height:100dvh;max-height:100dvh;min-height:0!important}.student-body{flex:1!important;min-height:0!important;max-height:100%!important;overflow:hidden!important}.student-main-content{overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch;flex:1!important;height:100%!important;min-height:0!important;max-height:100%!important;overflow:hidden 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