.media{margin:.5em auto;max-width:100%;overflow:hidden}.media-right{position:fixed;left:50%;margin-left:585px;top:55px}@media (max-width:1460px){.media-right{display:block;position:fixed;left:100%}}@media (max-width:1205px){.media-right{display:none}}.media-top{margin-bottom:2%}.media-bottom,.media-top{margin-top:2%}.media-between-edition{margin-top:2%;margin-bottom:2%}@font-face{font-family:Ubuntu;font-style:normal;font-weight:400;src:url(/build/assets/fonts/Ubuntu-Regular.ttf)}@font-face{font-family:Ubuntu;font-style:normal;font-weight:300;src:url(/build/assets/fonts/Ubuntu-Light.ttf)}@font-face{font-family:Ubuntu;font-style:normal;font-weight:500;src:url(/build/assets/fonts/Ubuntu-Medium.ttf)}@font-face{font-family:Ubuntu;font-style:italic;font-weight:400;src:url(/build/assets/fonts/Ubuntu-Italic.ttf)}@font-face{font-family:Ubuntu;font-style:italic;font-weight:300;src:url(/build/assets/fonts/Ubuntu-LightItalic.ttf)}@font-face{font-family:Ubuntu;font-style:italic;font-weight:500;src:url(/build/assets/fonts/Ubuntu-MediumItalic.ttf)}*{-webkit-box-sizing:border-box;box-sizing:border-box}html{font-size:12px}@media (min-width:768px){html{font-size:14px}}body{font-size:1em;font-family:Ubuntu,Helvetica,Arial,sans-serif;color:#444}img{max-width:100%;display:block}input{line-height:2em}input.gsc-input{line-height:1em}[type=text],p{text-indent:.5em}a{color:#636363}a:hover{color:#6a6a6a}b,strong{font-family:Ubuntu;font-weight:600}h2{font-weight:500}h3{font-weight:400}.border-block{border:.05em solid}.border-bottom{border-bottom:.05em solid}.border-right{border-right:.05em solid}.border-left{border-left:.05em solid}.border-color-1{border-color:#e9e9e9}.border-color-2{border-color:#6ac579}.border-color-3{border-color:#0b91ea}.text-upper{text-transform:uppercase}.text-undecorated{text-decoration:none}.text-normal{font-weight:400}.text-center{text-align:center}.text-color-1{color:#6a6a6a}.text-color-2{color:#636363}.text-color-3{color:#6ac579}.text-color-4{color:#0b91ea}.text-color-5{color:#67a069}.outer-md-1{margin:1em}.outer-md-v-1{margin-top:1em;margin-bottom:1em}.outer-md-v-2{margin-top:2em;margin-bottom:2em}.inner-1,.inner-md-1{padding:1em}.inner-md-left-1{padding-left:1em}.inner-md-right-1{padding-right:1em}.inner-md-bottom-1,.inner-md-v-1{padding-bottom:1em}.inner-md-v-1{padding-top:1em}@media (min-width:1024px){.block-left{float:left;width:20em}}.block-right{border:1px solid rgba(0,0,0,0)}@media (min-width:1024px){.block-right{margin-left:20em}}.vk_groups{display:none;margin:1em auto}@media (min-width:1024px){.vk_groups{display:block}}.app-social-buttons>*{display:inline-block;vertical-align:top;margin-right:1em}.app{background-image:url(/img/main-background.png)}.app-container{max-width:80em;margin:0 auto;background-color:#fff}@media (min-width:1024px){.app-container{padding:1em}}.app-logo{display:block;background:url(/img/app-logo.png) no-repeat;background-size:contain;margin-left:.1em;height:6em}@media (min-width:425px){.app-logo{height:10em}}@media (min-width:1024px){.app-logo{height:10em;width:35em}}.app-navigation-toggler{text-align:center;background:#6ac579;color:#fff;line-height:1.5em;font-size:1.5em;cursor:pointer}@media (min-width:768px){.app-navigation-toggler{display:none}}.app-content{padding-bottom:1em}.app-content-header>*{margin:0}.app-footer{background:#f2f2f2;line-height:2em}.app-email{float:right;text-decoration:none}.input-container{display:block;margin-right:75px}.input-container input{width:100%}.form-search{position:relative}.form-submit{position:absolute;top:.05em;right:.05em;border:none;background:#6ac579;color:#fff;padding:0 1em;line-height:2.45em;-webkit-transition:background-color .7s,color .7s;-o-transition:.7s background-color,.7s color;transition:background-color .7s,color .7s}@media (min-width:768px){.form-submit{line-height:2.3em}}.form-submit:hover{background-color:#e1f3da;color:#5f7c50}.class-subject-table .list{display:inline-block;vertical-align:top;width:49%}@media (min-width:1024px){.class-subject-table .list{width:33%}}.class-subject-table .list ul{list-style:none;padding-left:0}.class-subject-table .list ul a{line-height:2em}.class-subject-table .list header{border-bottom:.15em dashed #6e716d}.list-tags{background:#f3f3f3;padding:1em 0}.list-tag{line-height:1.7em;color:#000;font-size:1.2em;padding:0 .7em;display:block}@media (min-width:1024px){.list-tag{vertical-align:top;display:inline-block;width:33%}}.list-tag:hover{color:#6a6a6a}.list-tag .fa{display:inline-block;font:normal normal normal 14px/1 FontAwesome;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.list-tag .fa-check:before{content:"\f00c";color:#6ac579}.description-video{text-align:justify}.group-heading{background:#d1f0d6;display:block;line-height:2em;text-indent:.5em}.book{min-height:11em;display:block;vertical-align:top}.book:hover{background:rgba(106,197,121,.28)}.book-task-controls a{text-decoration:none;font-size:18px}@media (min-width:768px){.book{width:49%;display:inline-block}}.book figure{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:left;-ms-flex-pack:left;justify-content:left;margin:.5em}@media (max-width:425px){.book figure{margin:0}}.book-cover{width:7em;min-width:7em;height:9.5em;margin-right:.5em;margin-top:.5em}@media (max-width:768px){.book-cover{margin-top:1em}}.book-description div{margin:.5em 0;font-size:16px}.book-description-heading{width:60%}.book-view-cover img{height:20em;max-width:13em;margin-right:.5em;display:inline-block;vertical-align:top}.book-task-container{margin:1em 0}.book-task-container.preloading{background:url(/img/ajax.gif) no-repeat 50%;min-height:10em}.book-task-controls{margin:.5em 0}.book-task-controls a{display:inline-block;vertical-align:top;min-width:3em;text-align:center;border:.05em solid #f0f0f0;border-radius:.2em;line-height:2em;cursor:pointer;padding:0 .5em}.book-task-controls a:hover{background:#6ac579;color:#fff}.book-task-breadcrumbs{background:#d0e7f0;line-height:2em;text-indent:.5em}.book-task-video{height:100%;position:absolute;width:100%}@media (min-width:768px){.book-task-video{height:30em}}.with-overtask{position:relative}.with-overtask .overtask{position:absolute;top:0;bottom:0;left:0;right:0}.book-structure a{display:inline-block;vertical-align:top;min-width:4.3em;text-align:center;border:.05em solid #f0f0f0;border-radius:.2em;line-height:3em;cursor:pointer;padding:0 .5em}.book-structure a:hover{background:#6ac579;color:#fff}@media (min-width:768px){.book-structure{min-width:3em;line-height:2em}}.book-structure header{background:#d0e7f0;line-height:2em;text-indent:.5em}.right{float:right}.app-navigation{z-index:1;position:relative;display:none}.app-navigation:after{content:"";background:#efefef;display:block;height:5px;position:absolute;top:1px;left:0;width:100%;z-index:1}@media (min-width:768px){.app-navigation{display:block}}.app-navigation .navigation-menu{-webkit-box-shadow:0 5px 8px -6px rgba(50,50,50,.75);box-shadow:0 5px 8px -6px rgba(50,50,50,.75);cursor:default;font-size:0;padding:0;list-style:none}.app-navigation .navigation-menu li:last-child a{border-right:none}.app-navigation .navigation-menu li>a{color:#6a6a6a;font-size:13px;text-decoration:none;padding:17px;display:inline-block}@media (max-width:768px){.app-navigation .navigation-menu li>a{display:block;padding:15px;font-size:14px}}@media (min-width:768px){.app-navigation .navigation-menu li>a{color:#6a6a6a;font-size:12px;text-decoration:none;padding:10px 0;display:inline-block;width:100%}}.classSelect{border-top:3px solid rgba(0,0,0,0);display:inline-block;z-index:100;position:relative}@media (min-width:768px){.classSelect{width:7.3%;text-align:center}}@media (max-width:768px){.classSelect{display:block}}@media (min-width:768px){.classSelect:hover{z-index:50;border-top:3px solid #6ac579;border-radius:2px}}@media (min-width:768px){.classSelect:hover ul{display:block}}ul.subjects{position:absolute;padding:0;display:none;font-size:0;z-index:2;text-align:left}ul.subjects li{width:120px;margin:0;line-height:20px;border:1px solid #ddd;border-bottom:none}ul.subjects li:last-child{border-bottom:1px solid #ddd}ul.subjects a{display:block!important;padding:2px 5px!important;font-size:12px!important;background:#fff;color:#000}ul.subjects a:hover{background:#ccc!important}@media (min-width:768px){.selected{border-top:3px solid #6ac579}}@media (max-width:768px){.selected{background:#6ac579;color:#fff!important}}@media (min-width:768px){.subjects .selected a{background:#6ac579!important;color:#fff!important}}@media (max-width:768px){.subjects .selected a{background:#6ac579;color:#fff!important}}.vk_fixed{position:fixed;top:0}.suggest{margin-top:20px;margin-bottom:20px;width:100%;-webkit-box-sizing:border-box;box-sizing:border-box}.suggest h2{text-align:center}.suggest__books{-webkit-box-sizing:border-box;box-sizing:border-box;display:inline-block;overflow-x:scroll;-webkit-overflow-scrolling:touch;white-space:nowrap;width:100%}.bookmark{clear:both;padding:10px;font-size:14px;background-color:#f3f3f3;border:2px solid #cacbcc;border-radius:3px;width:100%;margin-bottom:10px;margin-right:0!important}.bookmark .twitter-button,.bookmark .vk_like,.bookmark .vk_share{display:inline-block}.bookmark .bookmark-text{margin-top:5px}@media (max-width:768px){.bookmark .bookmark-text{font-size:12px;line-height:24px}}.active-task{background:#6ac579;color:#fff}.book-suggest{margin-right:0;max-width:320px;width:90px;display:inline-block;min-height:auto;margin-bottom:10px}@media (min-width:768px){.book-suggest{margin-right:5px;width:auto}}.book-suggest .book-cover{max-width:120px;height:auto;margin-right:10px;margin-top:0;width:7em}@media (min-width:768px){.book-suggest .book-cover{width:10em}}.book-suggest .book-cover img{max-height:120px}@media (min-width:768px){.book-suggest .book-cover img{max-height:160px}}.book-suggest:hover{-webkit-filter:brightness(120%);filter:brightness(120%)}.book-suggest .book-suggest-desc{font-size:16px;line-height:22px}@media (max-width:768px){.book-suggest .book-suggest-desc{font-size:14px;line-height:18px}}.book-suggest-flex{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:left;-ms-flex-pack:left;justify-content:left}.book-suggest-img{max-width:120px}.book-suggest-description{display:none;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column}.video-container{position:relative;margin-top:10px;margin-bottom:10px;padding-bottom:58.25%;height:0}.taskVideo{position:absolute;left:0;top:0;padding-bottom:0;width:100%;height:100%}.app-content-container{display:inline-block;width:100%}@media (max-width:1024px){.app-content-container{display:block}}a.disabled{color:#ededed;cursor:default}a.disabled:hover{background:none;color:#ededed}.btn-subscribe{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between}.book-suggest-publisher{margin-top:10px;margin-bottom:5px}@media (max-width:768px){.book-suggest-publisher,.book-suggest-series{font-size:12px}}
.adb-container{top:0;left:0;height:100vh;width:100vw;background:rgba(6,6,6,.7);text-align:center;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.adb-container>*{-webkit-box-sizing:border-box;box-sizing:border-box}.popapBlockedAd.active{display:block;z-index:1000;position:fixed;width:100%;height:100%;top:0;left:0;overflow:scroll}.popapBlockedAd .container{width:660px;height:560px;position:relative;margin:0 auto 10px;display:block;z-index:100;background:#fff}.active>.shadowClose,.shadow.active,.shadowNews.active{display:block;position:fixed;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.45);opacity:1;z-index:90;cursor:pointer}.popapBlockedAd .leftColl{width:360px;float:left;padding:0 10px 0 15px}.popapBlockedAd .leftColl,.popapBlockedAd .rightColl{background:#fff;-webkit-box-sizing:border-box;box-sizing:border-box;position:relative}.popapBlockedAd .rightColl{width:300px;float:right}.popapBlockedAd .leftColl .close{background:rgba(0,0,0,0) url(/build/assets/images/close.jpeg) no-repeat 50%;background-size:contain;position:absolute;width:15px;height:15px;z-index:10;left:10px;top:10px;overflow:hidden;cursor:pointer}.popapBlockedAd .leftColl .wrap{padding-top:224px;background:rgba(0,0,0,0) url(/build/assets/images/ad_logo.jpeg) no-repeat top;background-size:auto 192px}.popapBlockedAd .titleBlockedAd{font-family:PT Sans,sans-serif;font-weight:700;font-size:24px;color:#000;text-align:center;margin-bottom:20px}.popapBlockedAd .txt p{font-family:OpenSans,sans-serif;font-size:16px;color:#565d66;line-height:21px;text-indent:0!important;margin-bottom:15px}.popapBlockedAd .rightColl .wrap{position:relative;width:100%;overflow:hidden;height:560px;background:#e54c6d}.popapBlockedAd .nav{display:-webkit-box;display:-ms-flexbox;display:flex;padding:20px 30px 15px;border-bottom:1px solid #767676;font-size:15px;color:#fff;font-weight:100;-moz-justify-content:space-between;-ms-justify-content:space-between;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;box-pack:space-between}.popapBlockedAd .slideGallery.slide-1{left:0}.popapBlockedAd .slideGallery{position:absolute;width:900px;height:100%;overflow:hidden;left:0;-webkit-transition:left .5s ease-in-out;-o-transition:left .5s ease-in-out;transition:left .5s ease-in-out}.popapBlockedAd .nav span.active{color:#fff;border-bottom:3px solid #fff;cursor:default;pointer-events:none}.popapBlockedAd .nav span{padding-bottom:3px;border-bottom:3px solid rgba(0,0,0,0);cursor:pointer}.popapBlockedAd .nav span:hover{border-bottom:3px solid #fff}.popapBlockedAd #oneSlide{background:#ffe0e7 url(/build/assets/images/one_slide.jpeg) no-repeat center 152px;background-size:240px auto;display:none}.popapBlockedAd .slideGallery>.slide{position:absolute;width:300px;left:0;height:100%}.popapBlockedAd #twoSlide{background:#ffe0e7 url(/build/assets/images/two_slide.jpeg) no-repeat center 152px;background-size:240px auto;left:0;display:none}.popapBlockedAd #threeSlide{background:#ffe0e7 url(/build/assets/images/three_slide.jpeg) no-repeat center 152px;background-size:240px auto;left:0;display:none}.popapBlockedAd .slideGallery>.slide+.slide+.slide{left:600px}.popapBlockedAd .slideGallery .title{font-weight:600;font-size:16px;color:#000;padding:15px 30px}.popapBlockedAd ol{padding:0 30px;margin:0;text-align:left;list-style:decimal}.popapBlockedAd ol li{margin-bottom:15px;text-indent:0;font-size:14px;color:#000;line-height:18px}.popapBlockedAd .slideGallery>.slide+.slide{left:300px}.popapBlockedAd .txt .bold{font-family:OpenSans,sans-serif;font-size:16px;color:#000;font-weight:600;padding:20px 0 22px;border-bottom:1px solid #cfd9de;margin-bottom:25px}.popapBlockedAd .txt{text-align:left}.visible{display:block!important}.hidden{display:none!important}.non-fixed{position:relative!important}.empty-top{top:0!important}
.doc-link{display:inline-block;position:relative;padding:20px 10px 20px 60px;margin-right:60px;margin-top:20px;color:#507299;text-decoration:none}.doc-link:hover{-webkit-filter:brightness(120%);filter:brightness(120%);background:rgba(80,114,155,.09)}.doc-link:after{content:"";position:absolute;width:50px;height:50px;top:5px;left:0;background:url(/build/assets/images/file.png);background-size:contain}.doc-link.pdf:after{background:url(/build/assets/images/pdf.png);background-size:contain}.doc-link.doc:after,.doc-link.docx:after{background:url(/build/assets/images/doc.png);background-size:contain}.doc-link.jpeg:after,.doc-link.jpg:after{background:url(/build/assets/images/jpg.png);background-size:contain}.doc-link.png:after{background:url(/build/assets/images/png.png);background-size:contain}.doc-link.ppt:after,.doc-link.pptx:after{background:url(/build/assets/images/ppt.png);background-size:contain}.doc-link.txt:after{background:url(/build/assets/images/txt.png);background-size:contain}.doc-link.xls:after{background:url(/build/assets/images/xls.png);background-size:contain}.doc-link.zip:after{background:url(/build/assets/images/zip.png);background-size:contain}
.content-reached-block{display:inline-block;width:100%;text-align:center}.content-reached-block p{font-size:16px;line-height:1.2em;text-indent:0}.content-reached-block img{max-width:100%;min-height:100px}
.change-player{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;margin-top:20px;font-size:14px;-webkit-column-gap:10px;-moz-column-gap:10px;column-gap:10px}.change-player__icon{margin-left:10px;height:24px;width:111px;background-size:contain;background-repeat:no-repeat}@media (max-width:576px){.change-player__icon{height:16px;width:74px;margin-left:4px}}.change-player__button{background-color:rgba(0,0,0,0);border:1px solid #507299;padding:5px 15px;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;border-radius:3px;cursor:pointer}@media (max-width:576px){.change-player__button{padding:7px 10px}}.change-player__button:hover{opacity:.7}.change-player__button_yt .change-player__icon{background-image:url(/build/assets/fonts/youtube-video.svg)}.change-player__button_vk .change-player__icon{background-image:url(/build/assets/fonts/vk-video.svg)}.change-player__button_active{background-color:#507299;color:#fff}.change-player__button_active:hover{opacity:1}.change-player__button_active.change-player__button_yt .change-player__icon{background-image:url(/build/assets/fonts/youtube-video-active.svg)}.change-player__button_active.change-player__button_vk .change-player__icon{background-image:url(/build/assets/fonts/vk-video-active.svg)}.subscribe-block{height:28px}.btn-subscribe_hidden{visibility:hidden}.btn-subscribe_hidden>div>iframe{visibility:hidden!important}