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p{color:var(--ef-muted);margin:0;font-size:.9rem}.ef-student-course-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.35rem;margin-bottom:2rem;display:grid}.ef-student-course-list{flex-direction:column;gap:.75rem;margin-bottom:2rem;display:flex}.ef-student-course-list .ef-student-course-card{grid-template-columns:200px 1fr;display:grid}.ef-student-course-card{border:1px solid var(--ef-border);border-radius:calc(var(--ef-radius) + 2px);box-shadow:var(--ef-shadow);background:#fff;transition:transform .22s,box-shadow .22s,border-color .22s;overflow:hidden}.ef-student-course-card:hover{border-color:#0f766e47;transform:translateY(-4px);box-shadow:0 4px 8px #0f27440f,0 14px 32px #0f27441a}.ef-student-course-card__thumb-link{height:10.5rem;display:block;position:relative;overflow:hidden}.ef-student-course-list .ef-student-course-card__thumb-link{height:100%;min-height:120px}.ef-student-course-list .ef-student-course-card__access-badge{inset:auto 8px 8px 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p{color:var(--ef-muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0 0 .75rem;font-size:.82rem;display:-webkit-box;overflow:hidden}.ef-student-course-card__progress{align-items:center;gap:.5rem;margin-bottom:.65rem;display:flex}.ef-student-course-card__progress .ef-progress{border-radius:999px;flex:1;height:6px;overflow:hidden}.ef-student-course-card__progress .ef-progress>span{background:linear-gradient(90deg, var(--ef-teal) 0%, var(--ef-accent-bar) 100%);border-radius:999px}.ef-student-course-card__progress>span:last-child{color:var(--ef-teal);text-align:right;min-width:2.25rem;font-size:.78rem;font-weight:600}.ef-student-course-card__resume{color:var(--ef-teal);background:var(--ef-teal-soft);border-radius:999px;align-items:center;gap:.35rem;padding:.35rem .75rem;font-size:.82rem;font-weight:700;transition:background .18s,color .18s;display:inline-flex}.ef-student-course-card__resume:hover{background:var(--ef-teal);color:#fff}.ef-student-course-card__resume svg{width:.85rem;height:.85rem}.ef-student-bottom{grid-template-columns:1.2fr 1fr;gap:1.25rem;display:grid}@media (width<=900px){.ef-student-bottom{grid-template-columns:1fr}}.ef-student-streak{padding:1.25rem;position:relative}.ef-student-streak h2,.ef-student-tasks h2{text-transform:uppercase;letter-spacing:.04em;color:var(--ef-muted);margin:0 0 .5rem;font-size:1rem}.ef-student-streak__stats{gap:2rem;margin-top:1rem;display:flex}.ef-student-streak__stats strong{color:var(--ef-navy);font-size:1.5rem;display:block}.ef-student-streak__stats span{color:var(--ef-muted);font-size:.78rem}.ef-student-streak__ring{text-align:center;width:72px;color:var(--ef-teal);font-size:.75rem;font-weight:700;position:absolute;top:1rem;right:1rem}.ef-student-streak__ring svg{width:72px;height:72px;transform:rotate(-90deg)}.ef-student-streak__ring-bg{fill:none;stroke:#e2e8f0;stroke-width:3px}.ef-student-streak__ring-fill{fill:none;stroke:var(--ef-teal);stroke-width:3px}.ef-student-tasks{padding:1.25rem}.ef-student-tasks ul{margin:0 0 1rem;padding:0;list-style:none}.ef-student-tasks li{border-bottom:1px solid var(--ef-border);gap:.75rem;padding:.75rem 0;display:flex}.ef-student-tasks li strong{font-size:.9rem;display:block}.ef-student-tasks__due--urgent{color:#dc2626;font-size:.78rem;font-weight:600}.ef-student-tasks__all{width:100%}.ef-student-course-view{grid-template-columns:minmax(0,1fr) 340px;gap:1.5rem;max-width:1400px;margin:0 auto;display:grid}@media (width<=1100px){.ef-student-course-view{grid-template-columns:1fr}}.ef-student-course-view__main{border:1px solid var(--ef-border);border-radius:calc(var(--ef-radius) + 4px);background:#fff;flex-direction:column;gap:0;min-width:0;padding:1.35rem 1.5rem 1.75rem;display:flex;box-shadow:0 1px 2px #0f172a0a,0 12px 40px -16px #0f172a1f}.ef-student-course-view--immersive{--ef-immersive-gutter:clamp(1.125rem, 4vw, 2.5rem);--ef-immersive-content:1100px;--ef-student-lesson-header-h:3.625rem;--ef-tab-dock-visible:clamp(13rem, 32vh, 20rem);--ef-video-hero-h:clamp(15rem, calc(100dvh - var(--ef-student-lesson-header-h) - var(--ef-tab-dock-visible)), 720px);flex-direction:row;flex:1;align-self:stretch;align-items:stretch;gap:0;width:100%;max-width:none;height:100%;min-height:0;margin:0;display:flex}.ef-student-main--lesson-immersive>.ef-student-course-view--immersive{flex:1;height:100%;min-height:0}.ef-student-course-view--immersive .ef-student-course-view__main{min-width:0;min-height:0;box-shadow:none;background:#fff;border:none;border-radius:0;flex-direction:column;flex:1;padding:0;display:flex;overflow:hidden}.ef-student-course-view--immersive .ef-student-course-view__main-scroll{overscroll-behavior:contain;flex-direction:column;flex:1;min-height:0;display:flex;overflow:hidden}.ef-student-course-view--immersive .ef-student-course-view__cinema{padding:1.5rem var(--ef-immersive-gutter,clamp(1.125rem, 4vw, 2.5rem)) 1.75rem;background:radial-gradient(circle,#1a1a2e 0%,#0a0a14 100%);flex-shrink:0;overflow:visible}.ef-student-course-view--immersive .ef-student-course-view__cinema--video-hero,.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero{flex:0 0 var(--ef-video-hero-h);width:100%;height:var(--ef-video-hero-h);min-height:var(--ef-video-hero-h);max-height:var(--ef-video-hero-h);flex-direction:column;align-self:stretch;padding:0;display:flex;overflow:hidden}.ef-student-course-view--immersive .ef-student-course-view__cinema-inner{width:100%;max-width:var(--ef-immersive-content,1100px);margin:0 auto}.ef-student-course-view--immersive .ef-student-course-view__cinema--video-hero .ef-student-course-view__cinema-inner,.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-course-view__cinema-inner{flex-direction:column;flex:auto;max-width:none;height:100%;min-height:0;margin:0;display:flex;position:relative}.ef-student-course-view--immersive .ef-student-course-view__cinema .ef-student-learn-player{width:100%;max-width:100%;margin-bottom:0}.ef-student-course-view--immersive .ef-student-course-view__cinema--video-hero .ef-student-learn-player:not(.ef-student-learn-player--article){min-height:0;box-shadow:none;border-radius:0;flex-direction:column;flex:auto;display:flex}.ef-student-course-view--immersive .ef-student-course-view__cinema .ef-student-learn-player:not(.ef-student-learn-player--article) .ef-student-video:not(.ef-student-video--article){width:100%;max-width:100%}.ef-student-course-view--immersive .ef-student-course-view__cinema .ef-student-video:not(.ef-student-video--article){border-radius:.75rem;margin-bottom:0}.ef-student-course-view--immersive .ef-student-course-view__cinema:not(.ef-student-course-view__cinema--video-hero) .ef-student-learn-player:not(.ef-student-learn-player--article) .ef-student-video{border-radius:.75rem}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-learn-player--article{height:100%;min-height:0;box-shadow:none;background:0 0;border-radius:0;flex-direction:column;flex:auto;margin-bottom:0;display:flex}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-video--article{border-radius:0;flex-direction:column;flex:auto;height:100%;min-height:0;display:flex;overflow:hidden}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-article-player{height:100%;min-height:0;box-shadow:none;border-top:none;border-left:none;border-right:none;border-radius:0;flex:auto}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-article-player:not(:fullscreen) .ef-student-article-player__scroll{flex:auto;min-height:0;max-height:none;overflow-y:auto}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-article-player__head{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:.85rem 3.25rem .75rem;position:relative}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-article-player__head-text{width:100%;max-width:var(--ef-immersive-content,1100px);flex-direction:column;flex:none;align-items:center;display:flex}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-article-player__badge{margin-bottom:.4rem}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-article-player__title{text-align:center}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-article-player__fullscreen{position:absolute;top:.65rem;right:.75rem}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-quiz-player{height:100%;min-height:0;box-shadow:none;border-top:none;border-left:none;border-right:none;border-radius:0;flex:auto}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-quiz-player:not(:fullscreen) .ef-student-quiz-player__scroll{flex:auto;min-height:0;max-height:none;overflow-y:auto}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-quiz-player__head{text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:.85rem 3.25rem .75rem;position:relative}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-quiz-player__head-text{width:100%;max-width:var(--ef-immersive-content,1100px);flex-direction:column;flex:none;align-items:center;display:flex}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-quiz-player__badge{margin-bottom:.4rem}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-quiz-player__title,.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-quiz-player__subtitle{text-align:center}.ef-student-course-view--immersive .ef-student-course-view__cinema--article-hero .ef-student-quiz-player__fullscreen{position:absolute;top:.65rem;right:.75rem}.ef-student-lesson-cinema-nav{--ef-cinema-nav-accent:var(--ef-teal);--ef-cinema-nav-accent-hover:var(--ef-teal-hover);--ef-cinema-nav-label-border:var(--ef-teal);--ef-cinema-nav-h:2.75rem}.ef-student-lesson-cinema-nav--overlay{z-index:12;pointer-events:none;flex-direction:row;justify-content:space-between;align-items:center;padding:0;display:flex;position:absolute;inset:0}.ef-student-lesson-cinema-nav--overlay .ef-student-lesson-cinema-nav__cluster{pointer-events:auto}.ef-student-lesson-cinema-nav__cluster{flex-direction:row;align-items:stretch;min-width:0;max-width:100%;display:flex}.ef-student-lesson-cinema-nav__cluster--prev{justify-content:flex-start}.ef-student-lesson-cinema-nav__cluster--next{justify-content:flex-end}.ef-student-lesson-cinema-nav__btn{width:var(--ef-cinema-nav-h);min-width:var(--ef-cinema-nav-h);height:var(--ef-cinema-nav-h);min-height:var(--ef-cinema-nav-h);background:var(--ef-cinema-nav-accent);color:#fff;cursor:pointer;box-shadow:none;border:none;border-radius:0;flex-shrink:0;justify-content:center;align-items:center;padding:0;text-decoration:none;transition:opacity .18s,background-color .15s,transform .15s;display:inline-flex}.ef-student-lesson-cinema-nav__btn:hover{background:var(--ef-cinema-nav-accent-hover);color:#fff}.ef-student-lesson-cinema-nav__btn:focus-visible{outline-offset:2px;outline:2px solid #fff}.ef-student-lesson-cinema-nav__btn svg{width:1.2rem;height:1.2rem}.ef-student-lesson-cinema-nav__cluster--prev .ef-student-lesson-cinema-nav__label{border-left:none;border-radius:0}.ef-student-lesson-cinema-nav__cluster--next .ef-student-lesson-cinema-nav__label{text-align:right;border-right:none;border-radius:0}.ef-student-lesson-cinema-nav__label{box-sizing:border-box;color:#fff;white-space:nowrap;text-overflow:ellipsis;opacity:0;background:#0f1116eb;border:0 solid #0000;border-radius:0;align-self:center;align-items:center;max-width:0;height:0;min-height:0;margin:0;padding:0;font-size:.8rem;font-weight:600;line-height:1.2;transition:max-width .22s,opacity .16s,padding .16s,border-width .12s,height .16s,min-height .16s;display:inline-flex;overflow:hidden}@media (hover:hover) and (pointer:fine){:is(.ef-student-lesson-cinema-nav__cluster--prev:has(.ef-student-lesson-cinema-nav__btn:hover) .ef-student-lesson-cinema-nav__label,.ef-student-lesson-cinema-nav__cluster--prev:has(.ef-student-lesson-cinema-nav__btn:focus-visible) .ef-student-lesson-cinema-nav__label,.ef-student-lesson-cinema-nav__cluster--next:has(.ef-student-lesson-cinema-nav__btn:hover) .ef-student-lesson-cinema-nav__label,.ef-student-lesson-cinema-nav__cluster--next:has(.ef-student-lesson-cinema-nav__btn:focus-visible) .ef-student-lesson-cinema-nav__label){max-width:min(46vw,15.5rem);height:var(--ef-cinema-nav-h);min-height:var(--ef-cinema-nav-h);border-width:1px;border-color:var(--ef-cinema-nav-label-border);opacity:1;padding:0 .7rem}}.ef-student-course-view--immersive .ef-student-course-view__cinema-inner:not(:hover):not(:focus-within):not(.is-cinema-nav-open) .ef-student-lesson-cinema-nav--overlay .ef-student-lesson-cinema-nav__btn{opacity:0;pointer-events:none}@media not all and (hover:hover) and (pointer:fine){:is(.ef-student-lesson-cinema-nav__cluster--prev:has(.ef-student-lesson-cinema-nav__btn:active) .ef-student-lesson-cinema-nav__label,.ef-student-lesson-cinema-nav__cluster--prev:has(.ef-student-lesson-cinema-nav__btn:focus-visible) .ef-student-lesson-cinema-nav__label,.ef-student-lesson-cinema-nav__cluster--next:has(.ef-student-lesson-cinema-nav__btn:active) .ef-student-lesson-cinema-nav__label,.ef-student-lesson-cinema-nav__cluster--next:has(.ef-student-lesson-cinema-nav__btn:focus-visible) .ef-student-lesson-cinema-nav__label){max-width:min(46vw,15.5rem);height:var(--ef-cinema-nav-h);min-height:var(--ef-cinema-nav-h);border-width:1px;border-color:var(--ef-cinema-nav-label-border);opacity:1;padding:0 .7rem}}@media (width<=520px){.ef-student-lesson-cinema-nav{--ef-cinema-nav-h:2.5rem}:is(.ef-student-lesson-cinema-nav__cluster--prev:has(.ef-student-lesson-cinema-nav__btn:hover) .ef-student-lesson-cinema-nav__label,.ef-student-lesson-cinema-nav__cluster--prev:has(.ef-student-lesson-cinema-nav__btn:focus-visible) .ef-student-lesson-cinema-nav__label,.ef-student-lesson-cinema-nav__cluster--next:has(.ef-student-lesson-cinema-nav__btn:hover) .ef-student-lesson-cinema-nav__label,.ef-student-lesson-cinema-nav__cluster--next:has(.ef-student-lesson-cinema-nav__btn:focus-visible) .ef-student-lesson-cinema-nav__label){max-width:min(52vw,11rem);padding:0 .55rem;font-size:.72rem}@media not all and (hover:hover) and (pointer:fine){.ef-student-lesson-cinema-nav__label{max-width:min(52vw,11rem);padding:0 .55rem;font-size:.72rem}}}.ef-student-course-view--immersive .ef-student-lesson-dock{background:#fff;border-top:1px solid #0f172a14;flex-direction:column;flex:1;width:100%;min-height:0;display:flex;overflow:hidden}.ef-student-course-view--immersive .ef-student-lesson-dock__tabs{scrollbar-width:none;border-bottom:1px solid var(--ef-border);background:#fff;flex-wrap:nowrap;flex-shrink:0;align-items:stretch;gap:0;margin:0;padding:0 clamp(1.125rem,4vw,2.5rem);display:flex;overflow-x:auto}.ef-student-course-view--immersive .ef-student-lesson-dock__tabs::-webkit-scrollbar{display:none}.ef-student-course-view--immersive .ef-student-lesson-dock__tabs button{color:var(--ef-muted);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:3px solid #0000;border-radius:0;flex:none;margin:0;padding:.9rem 1.15rem;font-size:.875rem;font-weight:700;line-height:1.2;transition:color .15s,border-color .15s}.ef-student-course-view--immersive .ef-student-lesson-dock__tabs button:hover{color:var(--ef-teal)}.ef-student-course-view--immersive .ef-student-lesson-dock__tabs button.is-active{color:var(--ef-teal);box-shadow:none;border-bottom-color:var(--ef-teal);background:0 0}.ef-student-course-view--immersive .ef-student-lesson-dock__body{-webkit-overflow-scrolling:touch;flex:1;min-height:0;padding:1rem clamp(1.125rem,4vw,2.5rem) 1.25rem;overflow:hidden auto}.ef-student-course-view--immersive .ef-student-lesson-dock__body .ef-student-tab-panel{max-width:var(--ef-immersive-content,1100px);margin:0 auto}.ef-student-course-view--immersive .ef-student-lesson-dock__head{margin:0 0 .85rem}.ef-student-course-view--immersive .ef-student-lesson-dock__head .ef-student-lesson-head__meta{margin:0 0 .55rem}.ef-student-course-view--immersive .ef-student-lesson-dock__head .ef-student-lesson-head__meta-row{margin:0}.ef-student-course-view--immersive .ef-student-lesson-dock__lesson-title{color:var(--ef-navy);margin:0 0 .65rem;font-size:clamp(1.2rem,2.4vw,1.55rem);line-height:1.3}.ef-student-course-view--immersive .ef-student-lesson-dock__course-name{letter-spacing:.05em;text-transform:uppercase;color:var(--ef-teal);text-overflow:ellipsis;white-space:nowrap;margin:0 0 .35rem;font-size:.78rem;font-weight:700;overflow:hidden}.ef-student-course-view--immersive .ef-student-course-view__scroll{padding:1.5rem var(--ef-immersive-gutter,clamp(1.125rem, 4vw, 2.5rem)) 2.25rem;flex:none;overflow:visible}.ef-student-course-view--immersive .ef-student-learn-top__course{letter-spacing:.06em;text-transform:uppercase;color:var(--ef-teal);font-size:.78rem;font-weight:800}.ef-student-lesson-tagline{color:var(--ef-muted);margin:0 0 1rem;font-size:1.05rem;line-height:1.55}.ef-student-course-view--immersive .ef-student-learn-top,.ef-student-course-view--immersive .ef-student-lesson-head--video,.ef-student-course-view--immersive .ef-student-lesson-meta-strip,.ef-student-course-view--immersive .ef-student-learn-content{max-width:var(--ef-immersive-content);width:100%;margin-left:auto;margin-right:auto}.ef-student-course-view--immersive .ef-student-learn-top{margin-bottom:1rem}.ef-student-course-view--immersive .ef-student-lesson-head--video{margin-bottom:.75rem}.ef-student-course-view--immersive .ef-student-lesson-tagline{margin:0 0 .85rem}.ef-student-course-view--immersive .ef-student-lesson-meta-strip{margin:0 0 1rem;padding:0}.ef-student-course-view--immersive .ef-student-lesson-head--video h1{margin-bottom:.4rem;font-size:clamp(1.35rem,2.8vw,1.85rem)}.ef-student-course-view--immersive .ef-student-lesson-head--video .ef-student-lesson-head__meta{margin:0 0 .5rem;font-size:.8rem}.ef-student-course-view--immersive .ef-student-lesson-head--video .ef-student-lesson-head__meta-row{margin-bottom:0}.ef-student-course-view--immersive .ef-student-learn-content{border-top:none;margin-top:.25rem;padding-top:0}.ef-student-course-view--immersive .ef-student-learn-content__toolbar{border:none;border-bottom:1px solid var(--ef-border);background:0 0;border-radius:0;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:.75rem 1.5rem;margin-bottom:1rem;padding:0;display:flex}.ef-student-course-view--immersive .ef-student-learn-content__toolbar .ef-student-tabs{background:0 0;border:none;border-radius:0;flex-wrap:wrap;gap:0 1.5rem;margin-bottom:0;padding:0;display:flex}.ef-student-course-view--immersive .ef-student-learn-content__toolbar .ef-student-tabs button{color:var(--ef-muted);background:0 0;border-bottom:2px solid #0000;border-radius:0;margin-bottom:-1px;padding:.65rem .2rem .75rem;font-weight:600}.ef-student-course-view--immersive .ef-student-learn-content__toolbar .ef-student-tabs button.is-active{color:var(--ef-navy);box-shadow:none;border-bottom-color:var(--ef-navy);background:0 0}.ef-student-course-view--immersive>.ef-student-course-sidebar{border:none;border-left:1px solid var(--ef-border);width:min(100%,400px);height:auto;min-height:0;max-height:none;box-shadow:none;background:#fff;border-radius:0;flex-direction:column;flex:0 0 min(100%,400px);align-self:stretch;margin:0;padding:0;display:flex;position:relative;top:auto;overflow:hidden}.ef-student-course-view--immersive .ef-student-course-sidebar--tab-panel{width:100%;max-width:none;box-shadow:none;background:#fff;border:none;border-radius:0;flex-direction:column;margin:0;padding:0;display:flex}.ef-student-course-view--immersive .ef-student-course-sidebar--tab-panel .ef-student-curriculum{flex:0 auto;min-height:0;max-height:none;overflow-y:visible}.ef-student-course-view--immersive .ef-student-course-sidebar__head{background:#fff;border-bottom:none;flex-shrink:0;padding:1.25rem 1.25rem 1rem}.ef-student-course-view--immersive .ef-student-course-sidebar__progress{margin-bottom:0}.ef-student-course-view--immersive .ef-student-course-sidebar__progress .ef-progress{height:6px}.ef-student-course-view--immersive>.ef-student-course-sidebar .ef-student-curriculum{border-top:1px solid var(--ef-border);scrollbar-width:none;-ms-overflow-style:none;flex:auto;min-height:0;padding:0;overflow-y:auto}.ef-student-course-view--immersive .ef-student-curriculum__section{border-top:none}.ef-student-course-view--immersive .ef-student-curriculum__section+.ef-student-curriculum__section{border-top:1px solid var(--ef-border)}.ef-student-course-view--immersive>.ef-student-course-sidebar .ef-student-curriculum::-webkit-scrollbar{width:0;height:0;display:none}.ef-student-course-view--immersive .ef-student-curriculum__section-head{background:#fff;padding:.75rem 1.25rem}.ef-student-course-view--immersive .ef-student-curriculum ul{margin:0;padding:0}.ef-student-course-view--immersive .ef-student-curriculum li{border-bottom:1px solid var(--ef-border);background:#f1f5f9;margin:0;padding:0}.ef-student-course-view--immersive .ef-student-curriculum li:last-child{border-bottom:none}.ef-student-course-view--immersive .ef-student-curriculum li.is-active{background:var(--ef-teal-soft)}.ef-student-course-view--immersive .ef-student-curriculum__lesson{box-sizing:border-box;background:0 0;border-radius:0;width:100%;max-width:none;margin:0;padding:.65rem 1rem .65rem 1.25rem}.ef-student-course-view--immersive .ef-student-curriculum li>.ef-student-curriculum__lesson.is-locked{box-sizing:border-box;background:0 0;border-radius:0;width:100%;max-width:none;margin:0;padding:.65rem 1rem .65rem 1.25rem;display:flex}.ef-student-course-view--immersive .ef-student-curriculum li.is-active .ef-student-curriculum__lesson{background:0 0}.ef-student-course-view--immersive .ef-student-curriculum li.is-playing .ef-student-curriculum__lesson-link strong{color:var(--ef-teal)}@media (width<=1100px){.ef-student-course-view--immersive{--ef-tab-dock-visible:clamp(11rem, 30vh, 16rem);--ef-video-hero-h:clamp(12rem, calc(100dvh - var(--ef-student-lesson-header-h) - var(--ef-tab-dock-visible)), 380px);flex-direction:column;flex:auto;width:100%;height:100%;min-height:0}.ef-student-course-view--immersive>.ef-student-course-sidebar{border-top:none;border-left:none;border-bottom:1px solid var(--ef-border);flex:0 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.ef-student-curriculum__section-head-meta{white-space:normal;max-width:100%}}.ef-student-learn-top{color:var(--ef-muted);flex-wrap:wrap;align-items:center;gap:.35rem .5rem;margin-bottom:1.15rem;font-size:.82rem;display:flex}.ef-student-learn-back{color:var(--ef-teal);align-items:center;gap:.3rem;font-weight:600;text-decoration:none;transition:color .15s,opacity .15s;display:inline-flex}.ef-student-learn-back:hover{color:var(--ef-navy)}.ef-student-learn-back svg{flex-shrink:0;width:1rem;height:1rem}.ef-student-learn-top__sep{color:var(--ef-border);-webkit-user-select:none;user-select:none}.ef-student-learn-top__course{text-overflow:ellipsis;white-space:nowrap;min-width:0;max-width:100%;color:var(--ef-navy);font-weight:500;overflow:hidden}.ef-student-lesson-head--video{margin-bottom:1rem;display:block}.ef-student-lesson-head--video h1{letter-spacing:-.02em;margin:0 0 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100%);margin-bottom:1.25rem;overflow:hidden;box-shadow:0 0 0 1px #0f172a14,0 20px 50px -24px #0f172a73}.ef-student-learn-player--article{box-shadow:none;background:0 0;margin-bottom:.5rem;overflow:visible}.ef-student-learn-player .ef-student-video{border-radius:0;margin-bottom:0}.ef-student-learn-player:not(.ef-student-learn-player--article) .ef-student-video{aspect-ratio:16/9}.ef-student-learn-content{border-top:1px solid var(--ef-border);margin-top:.25rem;padding-top:1.15rem}.ef-student-learn-content .ef-student-tabs{border:1px solid var(--ef-border);background:#f8fafc;border-bottom:none;border-radius:999px;flex-wrap:wrap;gap:.2rem;margin-bottom:1.15rem;padding:.2rem;display:inline-flex}.ef-student-learn-content .ef-student-tabs button{border-bottom:none;border-radius:999px;margin-bottom:0;padding:.5rem 1rem;transition:background .15s,color .15s,box-shadow .15s}.ef-student-learn-content .ef-student-tabs button.is-active{color:var(--ef-teal);background:#fff;border-bottom-color:#0000;box-shadow:0 1px 4px #0f172a14}.ef-student-learn-content__toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem 1rem;margin-bottom:1.15rem;display:flex}.ef-student-learn-content__toolbar .ef-student-tabs{flex:1;min-width:0;margin-bottom:0}.ef-student-lesson-resources-dropdown{flex-shrink:0;position:relative}.ef-student-lesson-resources-dropdown__trigger{border:1px solid var(--ef-teal);color:var(--ef-teal);cursor:pointer;background:0 0;border-radius:999px;align-items:center;gap:.35rem;padding:.45rem .85rem;font-size:.88rem;font-weight:600;line-height:1.2;display:inline-flex}.ef-student-lesson-resources-dropdown__trigger:hover{background:var(--ef-teal-soft)}.ef-student-lesson-resources-dropdown__trigger-icon{align-items:center;line-height:0;display:flex}.ef-student-lesson-resources-dropdown__chevron{align-items:center;line-height:0;transition:transform 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1rem;font-size:.88rem;line-height:1.55}.ef-quiz-player__results-actions{flex-wrap:wrap;gap:1rem;display:flex}.ef-student-video--article:fullscreen .ef-student-quiz-player{background:var(--ef-bg,#f1f5f9);flex-direction:column;min-height:100%;display:flex}@media (width<=720px){.ef-student-quiz-player__inner{padding:1.25rem 1.15rem 1rem}.ef-quiz-player__option-explanation{margin-left:0}.ef-student-quiz-player__footer{grid-template-rows:auto auto auto;grid-template-columns:1fr}.ef-student-quiz-player__footer-actions{justify-content:flex-start}.ef-student-quiz-player__footer-nav{justify-content:flex-end}}.ef-student-shell[data-theme=dark] .ef-student-quiz-player{background:var(--st-surface);border-color:var(--st-border);box-shadow:0 1px 3px #00000040}.ef-student-shell[data-theme=dark] .ef-student-quiz-player:fullscreen{background:var(--st-bg)}.ef-student-shell[data-theme=dark] .ef-student-quiz-player__head{background:linear-gradient(180deg, var(--st-surface-2) 0%, var(--st-surface) 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.ef-student-quiz-player__scroll::-webkit-scrollbar-thumb{background:var(--ef-teal)}.ef-student-shell[data-theme=dark] .ef-student-quiz-player__scroll::-webkit-scrollbar-thumb:hover{background:var(--ef-teal-hover)}.ef-student-shell[data-theme=dark] .ef-student-quiz-player__footer{background:var(--st-surface);border-top-color:var(--st-border)}.ef-student-shell[data-theme=dark] .ef-student-quiz-player__skip,.ef-student-shell[data-theme=dark] .ef-quiz-player__skip-quiz{color:var(--st-text)}.ef-student-shell[data-theme=dark] .ef-student-quiz-player__skip:hover{color:#5eead4}.ef-student-shell[data-theme=dark] .ef-student-quiz-player__check:disabled{background:var(--st-surface-3);color:var(--st-muted)}.ef-student-shell[data-theme=dark] .ef-student-quiz-player__nav{color:var(--st-muted)}.ef-student-shell[data-theme=dark] .ef-student-quiz-player__nav:hover:not(:disabled){background:var(--st-surface-2);color:var(--st-text)}.ef-student-shell[data-theme=dark] .ef-quiz-player__q-label,.ef-student-shell[data-theme=dark] .ef-quiz-player__q-mode,.ef-student-shell[data-theme=dark] .ef-quiz-player__prompt,.ef-student-shell[data-theme=dark] .ef-quiz-player__option-text,.ef-student-shell[data-theme=dark] .ef-quiz-player__results-title{color:var(--st-text)}.ef-student-shell[data-theme=dark] .ef-quiz-player__results-meta,.ef-student-shell[data-theme=dark] .ef-student-quiz-player__empty{color:var(--st-muted)}.ef-student-shell[data-theme=dark] .ef-quiz-player__option{background:var(--st-surface-2);border-color:var(--st-border);color:var(--st-text)}.ef-student-shell[data-theme=dark] .ef-quiz-player__option.is-selected{background:var(--st-teal-soft);border-color:var(--ef-teal)}.ef-student-shell[data-theme=dark] .ef-quiz-player__option.is-correct{background:#16a34a26;border-color:#4ade80}.ef-student-shell[data-theme=dark] .ef-quiz-player__option.is-wrong{background:#dc26261f;border-color:#f87171}.ef-student-shell[data-theme=dark] .ef-quiz-player__option-explanation{box-shadow:0 1px 3px #0003}.ef-student-shell[data-theme=dark] .ef-quiz-player__option-explanation.is-correct{--ef-explanation-accent:#4ade80;--ef-explanation-bg:linear-gradient(180deg, #16a34a2e 0%, #16a34a14 100%);--ef-explanation-border:#4ade8059}.ef-student-shell[data-theme=dark] .ef-quiz-player__option-explanation.is-wrong{--ef-explanation-accent:#f87171;--ef-explanation-bg:linear-gradient(180deg, #dc262629 0%, #dc262614 100%);--ef-explanation-border:#f8717159}.ef-student-shell[data-theme=dark] .ef-quiz-player__option-explanation.is-neutral{--ef-explanation-accent:var(--st-muted);--ef-explanation-bg:linear-gradient(180deg, var(--st-surface-3) 0%, var(--st-surface-2) 100%);--ef-explanation-border:var(--st-border)}.ef-student-shell[data-theme=dark] .ef-quiz-player__option-explanation-body{color:var(--st-text)}.ef-student-shell[data-theme=dark] .ef-quiz-player__option-explanation.is-neutral .ef-quiz-player__option-explanation-body{color:var(--st-muted)}.ef-student-shell[data-theme=dark] .ef-quiz-player__option-explanation-body code{background:#ffffff14}.ef-student-shell[data-theme=dark] .ef-quiz-player__review-note{background:linear-gradient(180deg, var(--st-teal-soft) 0%, var(--st-surface-2) 100%);color:var(--st-muted);border-color:#2dd4bf40}.ef-student-shell[data-theme=dark] .ef-quiz-player__results-score.is-pass{color:#4ade80}.ef-student-shell[data-theme=dark] .ef-quiz-player__results-score.is-fail,.ef-student-shell[data-theme=dark] .ef-quiz-player__error{color:#f87171}.ef-student-shell[data-theme=dark] .ef-quiz-player__intro-completed{color:var(--st-muted)}.ef-student-shell[data-theme=dark] .ef-quiz-player__start--secondary{background:var(--st-surface-2);color:#5eead4;border-color:var(--ef-teal)}.ef-student-shell[data-theme=dark] .ef-quiz-player__start--secondary:hover:not(:disabled){background:var(--st-teal-soft)}.ef-student-curriculum__lesson-type--quiz svg{width:1rem;height:1rem}