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env(safe-area-inset-bottom))}}.CountDownTimer{display:flex;flex-wrap:wrap;gap:.7rem 1rem;justify-content:center}.CountDownTimer .timer-section{align-items:center;display:inline-flex;flex-direction:column;justify-content:center;line-height:1}.CountDownTimer .section-value{font-family:monospace;font-weight:700}.CountDownTimer .section-label{font-size:max(.6rem,.2em);margin-top:.5rem;text-transform:uppercase}.CountDownTimer .timer-section{animation:fade-in 1s}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.TimelineItem{position:relative}.TimelineItem:not(:last-child){padding-bottom:3rem}.TimelineItem .content-wrapper{padding-left:5rem;position:relative;transition-duration:.6s;transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1)}@media (min-width:1000px){.TimelineItem .content-wrapper{width:50%}}.TimelineItem__heading{align-items:center;display:grid;grid-template-areas:"toggle chevron" "details details";grid-template-columns:minmax(0,1fr) auto}.TimelineItem__toggle{grid-area:toggle;min-width:0}.TimelineItem__heading-details{grid-area:details;min-width:0;padding:0 16px 16px}.TimelineItem__chevron{grid-area:chevron;margin-left:12px;margin-right:16px;pointer-events:none}@container (min-width: 620px){.TimelineItem__heading--details:not(.TimelineItem__heading--expanded){align-items:center;grid-template-areas:"toggle details chevron";grid-template-columns:minmax(0,1fr) 240px auto}.TimelineItem__heading--details:not(.TimelineItem__heading--expanded) .TimelineItem__heading-details{padding:12px 0}}@container (min-width: 350px){.TimelineItem__heading--details[data-detail-count="1"]:not(.TimelineItem__heading--expanded){grid-template-areas:"toggle details chevron";grid-template-columns:minmax(0,1fr) 42px auto}.TimelineItem__heading--details[data-detail-count="1"]:not(.TimelineItem__heading--expanded) .TimelineItem__heading-details{padding:12px 0}}@container (min-width: 400px){.TimelineItem__heading--details[data-detail-count="2"]:not(.TimelineItem__heading--expanded){grid-template-areas:"toggle details chevron";grid-template-columns:minmax(0,1fr) 92px auto}.TimelineItem__heading--details[data-detail-count="2"]:not(.TimelineItem__heading--expanded) .TimelineItem__heading-details{padding:12px 0}}@container (min-width: 450px){.TimelineItem__heading--details[data-detail-count="3"]:not(.TimelineItem__heading--expanded){grid-template-areas:"toggle details chevron";grid-template-columns:minmax(0,1fr) 142px auto}.TimelineItem__heading--details[data-detail-count="3"]:not(.TimelineItem__heading--expanded) .TimelineItem__heading-details{padding:12px 0}}@media (prefers-reduced-motion:reduce){.TimelineItem *,.TimelineItem :after,.TimelineItem :before{animation:none!important;transition:none!important}}.TimelineItem .content{border-radius:1rem;border-width:3px;container-type:inline-size;position:relative;--tw-border-opacity:1;border-color:rgb(0 0 0/var(--tw-border-opacity,1));--tw-bg-opacity:1;background-color:rgb(255 255 255/var(--tw-bg-opacity,1));--tw-shadow:.25em .25em 0 var(--tw-shadow-color,#000);--tw-shadow-colored:.25em .25em 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000),var(--tw-ring-shadow,0 0 #0000),var(--tw-shadow);transform-origin:top right;transition-duration:.5s;transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1);z-index:10}@media (min-width:1000px){.TimelineItem.left .content{transform-origin:top left}.TimelineItem.left .content-wrapper{padding-left:0;padding-right:4rem}.TimelineItem.right .content-wrapper{left:50%;padding-left:4rem}}.TimelineItem .circle{align-items:center;border-radius:9999px;border-width:3px;display:flex;justify-content:center;position:absolute;top:0;z-index:1;--tw-border-opacity:1;border-color:rgb(0 0 0/var(--tw-border-opacity,1));--tw-bg-opacity:1;background-color:rgb(234 179 8/var(--tw-bg-opacity,1));--tw-shadow:.2em .2em 0 var(--tw-shadow-color,#000);--tw-shadow-colored:.2em .2em 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000),var(--tw-ring-shadow,0 0 #0000),var(--tw-shadow)}@media (min-width:1000px){.TimelineItem .circle{left:50%;--tw-translate-x:-50%;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}}.TimelineItem .circle{transform-origin:center;transition-duration:.3s;transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1)}@media (min-width:1000px){.TimelineItem .circle{transform-origin:left}}.TimelineItem.expanded .circle{scale:.5}.TimelineItem .vertical-line{height:100%;position:absolute;width:.5rem;z-index:0;--tw-translate-x:-50%;border-radius:9999px;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));--tw-bg-opacity:1;background-color:rgb(234 179 8/var(--tw-bg-opacity,1));--tw-shadow:.2em .2em 0 var(--tw-shadow-color,#000);--tw-shadow-colored:.2em .2em 0 var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000),var(--tw-ring-shadow,0 0 #0000),var(--tw-shadow)}.TimelineItem:last-child .vertical-line{display:none}.Timeline{position:relative}.ControlTooltip{display:block}.ControlTooltip:focus-visible{border-radius:6px;outline:2px solid currentColor;outline-offset:3px}.ControlTooltip__control{display:block}.ControlTooltip--blocked .ControlTooltip__control{pointer-events:none}.test-timer[data-v-7b339407]{-webkit-user-select:none;-moz-user-select:none;user-select:none}.tabular-nums[data-v-7b339407]{font-variant-numeric:tabular-nums}.ParentAvailabilityNotice--lesson{--tw-bg-opacity:1;background-color:rgb(109 40 217/var(--tw-bg-opacity,1))}.ParentAvailabilityNotice--worksheet{--tw-bg-opacity:1;background-color:rgb(29 78 216/var(--tw-bg-opacity,1))}.ParentAvailabilityNotice--stream{--tw-bg-opacity:1;background-color:rgb(190 50 23/var(--tw-bg-opacity,1))}.ParentAvailabilityNotice--test{--tw-bg-opacity:1;background-color:rgb(161 98 7/var(--tw-bg-opacity,1))}.ParentAvailabilityNotice--completed{--tw-bg-opacity:1;background-color:rgb(70 134 5/var(--tw-bg-opacity,1))}.ParentAvailabilityNotice--retest{--tw-bg-opacity:1;background-color:rgb(15 118 110/var(--tw-bg-opacity,1))}.CourseTestScore__form{align-items:start;display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}.CourseTestScore__form>.CourseTestScore__input{flex:1;min-width:0}.CourseTestScore__hint{color:#6e6480;flex-basis:100%;font-size:12px}.LectionOrChapter.LectionOrChapter--parent-notice{margin-top:calc(var(--parent-label-height, 3rem)/2 + 1.25rem)!important;padding-top:calc(var(--parent-label-height, 3rem)/2 + 1rem)!important}.LectionOrChapter.LectionOrChapter--parent-notice.LectionOrChapter--lesson{margin-top:calc(var(--parent-label-height, 3rem)/2)!important;padding-top:calc(var(--parent-label-height, 3rem)/2 + .75rem)!important}.LectionOrChapter>.LectionOrChapter__parent-labels{align-items:center;display:flex;flex-wrap:nowrap;gap:.25rem;left:.25rem;position:absolute;right:2rem;top:0;transform:translateY(-50%)}.CourseTimeline__stage{position:relative}.CourseTimeline__snapshot{display:flow-root;inset:0;overflow:hidden;pointer-events:none;position:absolute}.CourseTimeline__snapshot *{animation-play-state:paused!important;transition:none!important}.CourseTimeline__content{display:flow-root}.CourseTimeline__content--switching{overflow-anchor:none;visibility:hidden}.CourseTimeline__content--switching *{transition:none!important}.CourseTimeline__loading-overlay{background:#24133640;color:#fff;cursor:progress;display:grid;inset:0;place-items:center;position:fixed;touch-action:none;z-index:10001}.CourseTimeline__loading-overlay--simulation{pointer-events:none;z-index:38}.CourseTimeline__play{bottom:calc(24px + env(safe-area-inset-bottom));height:100px;position:fixed;right:max(24px,env(safe-area-inset-right));width:100px;z-index:35}.CourseTimeline__play:focus-visible{outline:4px solid #fff!important;outline-offset:4px!important}.CourseTimeline__play:disabled{cursor:wait}@media (max-width:480px){.CourseTimeline__play{bottom:calc(16px + env(safe-area-inset-bottom));height:80px;right:16px;width:80px}}@media (prefers-reduced-motion:reduce){.CourseTimeline__play{transition:none}}