#videos-backlink{color:#fff}#videos-backlink:hover{opacity:.7}#videos-backlink .arrow{display:inline-block;width:.6875rem;height:.6875rem;border-bottom:solid 2px #fff;border-left:solid 2px #fff;-webkit-transform:rotate(45deg);transform:rotate(45deg);margin:.0625rem .25rem}@media (max-width:1023.98px){.content-subheader{min-height:5.125rem}}.sticky-bar{display:none;z-index:1020;position:fixed;left:0;top:4rem;width:100%}@media (min-width:1024px){.sticky-bar{top:0}}.sticky-bar .row{min-height:5rem}@media (min-width:1024px){.sticky-bar .col-sticky{height:5rem}}#video-test-button .button-item{height:56px}#video-test-button .video-test-icon .content-state-icon{background:#fff;width:1.75rem;height:1.75rem}#video-test-button .unstarted .content-state-icon:before{display:none}#video-test-button .unactive{background:#f0f3f5 !important;color:#434d66 !important}#video-test-button .unactive .video-test-button-link{color:#434d66 !important}#video-test-button .unactive:hover{background:#c0c2c4 !important}#video-test-button .unactive:hover .content-state-icon:before{display:none}#video-test-button .not-existing{opacity:50%;cursor:not-allowed;background:#f0f3f5 !important;color:#434d66 !important}#video-test-button .not-existing .video-test-button-link{color:#434d66 !important}#video-test-button .active{color:#fff !important;pointer-events:none;cursor:default}#video-test-button .active .video-test-button-link{color:#434d66 !important}#video-test-button .active .content-state-icon:before{display:none}#video-test-button #new-test-label{height:3.625rem;width:3.625rem;position:absolute;right:.1875rem;top:-.3125rem;z-index:1;cursor:not-allowed}#video-test-button #new-test-label svg{height:3.625rem;width:3.625rem}#textbook-nav .selected:before,#textbook-nav .lesson-item:before{content:'';position:absolute;top:1.25rem;left:.875rem;right:0;height:100%;border-left:1px solid currentColor;z-index:-1}.watch-side-nav .page{display:block;background:#434d66;font-family:"AkrobatExtraBold" !important;font-size:12px !important;color:#fff;width:3.5rem;height:1.5rem;border-radius:.3125rem;padding-top:.375rem;padding-bottom:.25rem;margin-top:.5rem;text-align:center;text-transform:uppercase;line-height:1.2}@media (-webkit-min-device-pixel-ratio:1.25),(min-resolution:120dpi){.watch-side-nav .page{line-height:1}}.watch-side-nav .content-name a,#textbook-nav .no-videos-label{margin-top:.3rem}@media (min-width:1024px){.watch-side-nav .content-name a,#textbook-nav .no-videos-label{margin-top:.25rem}}@media (-webkit-min-device-pixel-ratio:1.25) and (min-width:1024px),(min-resolution:120dpi) and (min-width:1024px){.watch-side-nav .content-name a,#textbook-nav .no-videos-label{margin-top:.15rem}}.main-video-col{margin-top:.5rem;-webkit-order:2;order:2}.video-nav-toggler{display:-webkit-flex;display:flex;background:#d2d4d7;color:#434d66;height:3.5rem;line-height:1;padding-left:1rem;position:relative;-webkit-align-items:center;align-items:center;font-family:"AkrobatBold" !important;font-size:1rem !important}.video-nav-toggler:hover{color:#434d66}.video-nav-toggler:focus{outline:none}.video-nav-toggler:after{content:'';position:absolute;right:1.75rem;top:1.55rem;display:inline-block;width:.6875rem;height:.6875rem;border-bottom:solid 2px #434d66;border-left:solid 2px #434d66;-webkit-transform:rotate(135deg);transform:rotate(135deg)}.video-nav-toggler.collapsed:after{top:1.25rem;display:inline-block;width:.6875rem;height:.6875rem;border-bottom:solid 2px #434d66;border-left:solid 2px #434d66;-webkit-transform:rotate(-45deg);transform:rotate(-45deg)}@media (min-width:1024px) and (max-width:1279px){#watch-swiper-container{max-height:25.75rem !important}}@media (min-width:1280px) and (max-width:1365px){#watch-swiper-container{max-height:32.375rem !important}}@media (min-width:1366px) and (max-width:1919px){#watch-swiper-container{max-height:38.6875rem !important}}@media (min-width:1920px){#watch-swiper-container{max-height:49.375rem !important}}.watch-side-nav{overflow:hidden;display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;-webkit-flex-wrap:wrap;flex-wrap:wrap;position:relative;padding-bottom:1.5rem;margin-bottom:.5rem;margin-top:.5rem}@media (min-width:1024px) and (max-width:1279px){.watch-side-nav{padding-left:0 !important}}@media (max-width:1023.98px){.watch-side-nav{max-height:30.5rem}}.watch-side-nav:before{content:'';position:absolute;top:1.25rem;left:.875rem !important;right:0;height:calc(100% - 2.5rem);border-left:1px solid #d2d4d7;z-index:-1}#to-all-lessons{position:absolute;bottom:0;left:0;font-family:"AkrobatBold" !important;font-size:1rem !important;line-height:1;background:#fff;display:block}@media (min-width:1024px){#to-all-lessons{display:none}}@media (min-width:1024px){.main-video-col{margin-top:0;-webkit-order:1;order:1}.side-nav-wrap{max-height:100%;height:auto;-webkit-order:2;order:2}.video-nav-toggler{display:none}#watch-nav-wrap{display:block}.watch-side-nav{position:absolute;left:0;right:0;padding:0 .5rem;padding-bottom:1rem;padding-left:0;height:100%;max-height:100%;margin-bottom:0;margin-top:0}.watch-side-nav.collapse{display:-webkit-flex;display:flex}.watch-side-nav:before{left:1.375rem;padding:0 .5rem}}.watch-side-nav{position:relative}#watch-nav-wrap.swiper-container{width:100%}#watch-nav-wrap .swiper-wrapper{width:93%}@media (min-width:1024px) and (max-width:1279px){#watch-nav-wrap .swiper-wrapper{width:92% !important;padding-left:0}}.swiper-slide{display:block}#watch-nav-wrap .swiper-scrollbar{cursor:-webkit-grab;cursor:grab;margin-top:.3125rem;width:.4375rem;right:.5rem;display:block !important;top:0;background:0 0}#watch-nav-wrap .swiper-scrollbar .swiper-scrollbar-drag{background:#bcbbbb}.no-textbook-slide{height:3.625rem}.textbook-slide{height:auto !important}.watch-side-nav .box{position:relative;display:-webkit-flex;display:flex;width:100%;margin-right:1rem}.watch-side-nav .content-name{-webkit-flex-grow:1;flex-grow:1;font-family:"AkrobatBold" !important;font-size:1rem !important;margin-left:1rem;padding-right:0;padding:.5rem 0}.watch-side-nav .content-name a{display:block;height:2.5rem;max-height:2.5rem;color:#434d66;overflow:hidden}.watch-side-nav .content-name a:hover{color:#2f3647}.watch-side-nav .box.no-content .content-number{color:#7b8294}.watch-side-nav .no-videos-label{height:2.5rem;color:#7b8294}.watch-side-nav .no-videos-label:focus{outline:none}.watch-side-nav .icon{margin-top:.5rem}.watch-side-nav .icon .content-state-icon{width:1.75rem;height:1.75rem}.watch-side-nav .icon .content-state-locked{width:1.75rem;height:1.75rem}.watch-side-nav .icon .content-state-locked .key-icon{width:1.25rem;height:1.25rem;top:-.5rem;right:-.5rem}.watch-side-nav .icon .content-state-icon:before{left:0}.watch-side-nav .icon span{background:#fff}.watch-side-nav .box.selected .content-name{border:1px solid #d2d4d7;border-left:0;border-right:0}.watch-side-nav .box.selected .content-name a{color:inherit}.watch-side-nav .icon a{color:currentColor}#textbook-nav .selected .content-name{border-bottom:none}#textbook-nav .selected.single:not(.bonus) .content-name{border-bottom:1px solid #d2d4d7}#textbook-nav .selected a{color:currentColor}#textbook-nav .single:before{display:none}#textbook-nav .no-videos-label{display:block;height:auto;max-height:2.5rem;cursor:default;overflow-y:hidden}#textbook-nav .no-videos{height:2.5rem}#textbook-nav .lesson-item .icon{margin-left:.1875rem;margin-bottom:.5rem}#textbook-nav .lesson-item a{height:auto;margin-top:.15rem}@media (-webkit-min-device-pixel-ratio:1.25) and (min-width:1024px),(min-resolution:120dpi) and (min-width:1024px){#textbook-nav .lesson-item a{margin-top:0}}#textbook-nav .lesson-item .content-state-icon{width:1.375rem;height:1.375rem}#textbook-nav .lesson-item .content-state-locked{width:1.375rem;height:1.375rem}#textbook-nav .lesson-item .content-state-locked .key-icon{width:1.375rem;height:1.375rem;top:-.5rem;right:-.5rem}#textbook-nav .lesson-item .content-name{margin-left:1.25rem}#textbook-nav .lesson-item.last .content-name{border-bottom:1px solid #d2d4d7}#textbook-nav .lesson-item.last .content-name:before{display:none}#textbook-nav .lesson-item.last:before{display:none}#textbook-nav .box.bonus.selected{padding-bottom:.5rem}#textbook-nav .box.bonus.selected .content-name{padding:0;padding-top:.5rem}#textbook-nav .box.bonus.selected a{height:auto}#watch-nav-wrap .tooltip{width:100%;top:-.5px !important;z-index:99;max-width:13.875rem;left:calc(-50% + 8.8rem) !important}@media (-webkit-min-device-pixel-ratio:1.25),(min-resolution:120dpi){#watch-nav-wrap .tooltip{top:0 !important}}@media (min-width:350px){#watch-nav-wrap .tooltip{max-width:15.8125rem;left:calc(-50% + 9.8rem) !important}}@media (min-width:1024px){#watch-nav-wrap .tooltip{max-width:11.4375rem;left:calc(-50% + 7.7rem) !important}}@media (min-width:1280px){#watch-nav-wrap .tooltip{max-width:15.8125rem;left:calc(-50% + 9.8rem) !important}}#watch-nav-wrap .tooltip .tooltip-inner{width:100%;max-width:15.8125rem}#watch-nav-wrap .tooltip .arrow{left:1rem !important}@media all and (device-width:768px) and (device-height:1024px) and (orientation:portrait){#uchase-nav{height:34.1875rem}#textbook-nav{display:block;position:relative;padding-bottom:1.5rem;margin-bottom:1rem;max-height:none}}.description-image{width:10.5rem;height:10.5rem}.description-image svg{width:10.5rem;height:10.5rem}@media (max-width:1023.98px){.description-image{width:6.75rem;height:6.75rem}.description-image svg{margin-bottom:0;width:6.75rem;height:6.75rem}}@media (max-width:1023.98px){.go-to-test{margin-top:.5rem !important}}#player-section.fix-player-height{padding-top:56.25%}#player-section.fix-player-height .ucha-player{display:none}@media (min-width:768px){#watch-page .description{padding-right:6.5rem}}#watch-page .keywords-list br,#watch-page .video-description-body br{content:"A" !important;display:block !important;margin-bottom:1rem}#watch-page .info-item{padding-top:0 important}#watch-page .video-description-body{line-height:1.4375rem}#watch-page .dislike-option-item:hover{cursor:pointer}@media (max-width:1023.98px){#watch-page .dislike-option-item{margin-top:1rem}}#watch-page .vote-item{margin-bottom:0 !important}@media (min-width:1280px){#watch-page .vote-item-row{width:auto;min-width:17.5rem}#watch-page .vote-item-row .vote-item{min-width:7.1875rem}#watch-page .vote-item-row .vote-item .icon-video_like{margin-right:0}}#watch-page .vote-item:hover{color:#2f3647;cursor:pointer}#watch-page .extra-materials-icon{height:3rem;fill:#16ddba;margin-right:.5rem}#watch-page .extra-materials-icon svg{width:3rem;height:3rem}#watch-page .extra-material-link{color:#434d66}#watch-page .bonus-materials-body{margin-bottom:.5rem !important}#watch-page .bonus-item:hover{color:#2f3647;cursor:pointer}#watch-page .bonus-item:hover .extra-materials-icon{fill:#0f9b82}#watch-page .vote-body:hover{color:#2f3647;cursor:pointer}#watch-page .thank-you-item{padding-bottom:0 !important}#watch-page #fb-share-btn{background-color:#1778f2;color:#fff;padding:.125rem .1875rem;padding-right:.25rem;border-radius:.3125rem;cursor:pointer}#watch-page #fb-share-btn:hover{background-color:#156cda}#watch-page #fb-share-btn #share-text,#watch-page #fb-share-btn svg{display:inline-block;vertical-align:middle}#watch-page #fb-share-btn svg{fill:currentColor}#watch-page .fb_iframe_widget iframe{position:absolute;width:156px !important}.pic-vote{width:2.5rem;height:2.5rem;max-width:100%}@media (min-width:1280px){.pic-vote{width:3rem;height:3rem}}#vote-section-result .pic-vote{width:2rem;height:2rem;max-width:100%}#vote-section-result .vote-body:hover{color:#627380 !important;cursor:default !important}@media (max-width:569px){#vote-section-result .pic-vote{float:left;margin-top:.25rem}}@media (max-width:359px){#vote-section.vote-section-like{margin-left:.5rem}#vote-section .vote-item-yes{padding-left:0;padding-right:0}}.icon-boring,.icon-childish,.icon-dislike,.icon-dont-understand,.icon-else,.icon-like,.icon-not-all,.icon-thanks{background:url("/assets/base/images/icons/sprite/view/like-dislike-video.svg")}.icon-boring{background-position:0 0;background-size:auto 100%;margin-right:.25rem}.icon-childish{background-position:14.285714285714286% 0;background-size:auto 100%;margin-right:.25rem}.icon-dislike{background-position:28.571428571428573% 0;background-size:auto 100%}.icon-dont-understand{background-position:42.857142857142854% 0;background-size:auto 100%;margin-right:.25rem}.icon-else{background-position:57.142857142857146% 0;background-size:auto 100%;margin-right:.25rem}.icon-like{background-position:71.42857142857143% 0;background-size:auto 100%}.icon-not-all{background-position:85.71428571428571% 0;background-size:auto 100%;margin-right:.25rem}.icon-thanks{background-position:100% 0;background-size:auto 100%}.pic-video-info{width:2rem;height:2rem;max-width:100%}.icon-calendar,.icon-comment,.icon-eye,.icon-time{background:url("/assets/base/images/icons/sprite/view/video-info.svg") no-repeat}.icon-calendar{background-position:0 0;background-size:auto 100%;margin-right:.25rem}.icon-comment{background-position:33.333333333333336% 0;background-size:auto 100%;margin-right:.25rem}.icon-eye{background-position:66.66666666666667% 0;background-size:auto 100%;margin-right:.25rem}.icon-time{background-position:100% 0;background-size:auto 100%;margin-right:.25rem}.position-wrap.abtest-3{padding:0 !important;background:linear-gradient(to left,#00a2ff 50%,#ff5855 50%)}@media (min-width:768px){#endscreen-to-test .btn{padding:.9375rem 3rem;font-size:1.25rem;line-height:1.2;border-radius:1.75rem;font-family:"AkrobatBold" !important;font-size:1.25rem !important}}@media (min-width:1024px){#endscreen-to-test .btn{padding:1rem 4rem;font-size:2rem;line-height:1.2;border-radius:4.5rem;font-family:"AkrobatBold" !important;font-size:2rem !important}}#endscreen-to-test .custom-border-radius{border-radius:4.5rem}#endscreen-to-test .custom-disabled-btn{opacity:50%;cursor:not-allowed}#endscreen-to-test .exercise-missing-text{font-family:"AkrobatSemiBold" !important;font-size:12px !important}@media (min-width:1024px){#endscreen-to-test .exercise-missing-text{font-family:"AkrobatSemiBold" !important;font-size:1.125rem !important}}.abtest-3 .description-image-3{width:5.125rem;height:5.125rem}.abtest-3 .description-image-3 svg{width:5.125rem;height:5.125rem}@media (min-width:768px){.abtest-3 .description-image-3{width:10.5rem;height:10.5rem}.abtest-3 .description-image-3 svg{width:10.5rem;height:10.5rem}}@media (min-width:1280px){.abtest-3 .description-image-3{width:13.75rem;height:13.75rem}.abtest-3 .description-image-3 svg{width:13.75rem;height:13.75rem}}.abtest-3 .abtest-3-text{font-family:"AkrobatExtraBold" !important;font-size:.875rem !important}@media (min-width:768px){.abtest-3 .abtest-3-text{font-family:"AkrobatExtraBold" !important;font-size:1.125rem !important}}@media (min-width:1024px){.abtest-3 .abtest-3-text{font-family:"AkrobatExtraBold" !important;font-size:1.25rem !important}}@media (min-width:1280px){.abtest-3 .abtest-3-text{font-family:"AkrobatExtraBold" !important;font-size:1.5rem !important}}