.yarl__fullsize{height:100%;width:100%}.yarl__relative{position:relative}.yarl__portal{bottom:0;left:0;opacity:0;overflow:hidden;position:fixed;right:0;top:0;transition:opacity .25s ease;transition:opacity var(--yarl__fade_animation_duration,.25s) var(--yarl__fade_animation_timing_function,ease);z-index:9999;z-index:var(--yarl__portal_zindex,9999)}.yarl__portal_open{opacity:1}.yarl__container{background-color:#000;background-color:var(--yarl__container_background_color,var(--yarl__color_backdrop,#000));bottom:0;left:0;outline:none;overflow:hidden;overscroll-behavior:contain;overscroll-behavior:var(--yarl__controller_overscroll_behavior,contain);position:absolute;right:0;top:0;touch-action:none;touch-action:var(--yarl__controller_touch_action,none);-webkit-user-select:none;-moz-user-select:none;user-select:none}.yarl__carousel{align-content:center;align-items:stretch;display:flex;flex:0 0 auto;height:100%;justify-content:center;opacity:1;opacity:var(--yarl__pull_opacity,1);transform:translate(0);transform:translate(var(--yarl__swipe_offset,0),var(--yarl__pull_offset,0));width:calc(100% + (var(--yarl__carousel_slides_count) - 1)*(100% + 0*1px + 0*1%));width:calc(100% + (var(--yarl__carousel_slides_count) - 1)*(100% + var(--yarl__carousel_spacing_px, 0)*1px + var(--yarl__carousel_spacing_percent, 0)*1%))}.yarl__carousel_with_slides{-moz-column-gap:calc(0*1px + 100/(var(--yarl__carousel_slides_count)*100 + (var(--yarl__carousel_slides_count) - 1)*var(--yarl__carousel_spacing_percent, 0))*0*1%);-moz-column-gap:calc(var(--yarl__carousel_spacing_px, 0)*1px + 100/(var(--yarl__carousel_slides_count)*100 + (var(--yarl__carousel_slides_count) - 1)*var(--yarl__carousel_spacing_percent, 0))*var(--yarl__carousel_spacing_percent, 0)*1%);column-gap:calc(0*1px + 100/(var(--yarl__carousel_slides_count)*100 + (var(--yarl__carousel_slides_count) - 1)*var(--yarl__carousel_spacing_percent, 0))*0*1%);column-gap:calc(var(--yarl__carousel_spacing_px, 0)*1px + 100/(var(--yarl__carousel_slides_count)*100 + (var(--yarl__carousel_slides_count) - 1)*var(--yarl__carousel_spacing_percent, 0))*var(--yarl__carousel_spacing_percent, 0)*1%)}.yarl__flex_center{align-content:center;align-items:center;display:flex;justify-content:center}.yarl__slide{flex:1 1;overflow:hidden;padding:calc(var(--yarl__carousel_padding_px, 0)*1px + 100/(var(--yarl__carousel_slides_count)*100 + (var(--yarl__carousel_slides_count) - 1)*var(--yarl__carousel_spacing_percent, 0))*var(--yarl__carousel_padding_percent, 0)*1%);position:relative}[dir=rtl] .yarl__slide{--yarl__direction:-1}.yarl__slide_image{max-height:100%;max-width:100%;-o-object-fit:contain;object-fit:contain;touch-action:none;touch-action:var(--yarl__controller_touch_action,none);-moz-user-select:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.yarl__slide_image_cover{height:100%;-o-object-fit:cover;object-fit:cover;width:100%}.yarl__slide_image_loading{opacity:0}@media screen and (min-width:800px){.yarl__slide_wrapper:not(.yarl__slide_wrapper_interactive) .yarl__slide_image{-webkit-backface-visibility:hidden;-webkit-transform:translateZ(0);-webkit-transform-style:preserve-3d}}.yarl__slide_placeholder{left:50%;line-height:0;position:absolute;top:50%;transform:translateX(-50%) translateY(-50%)}.yarl__slide_loading{animation:yarl__delayed_fadein 1s linear;color:hsla(0,0%,100%,.8);color:var(--yarl__slide_icon_loading_color,var(--yarl__color_button,hsla(0,0%,100%,.8)))}.yarl__slide_loading line{animation:yarl__stroke_opacity 1s linear infinite}.yarl__slide_loading line:first-of-type{animation-delay:-1.875s}.yarl__slide_loading line:nth-of-type(2){animation-delay:-1.75s}.yarl__slide_loading line:nth-of-type(3){animation-delay:-1.625s}.yarl__slide_loading line:nth-of-type(4){animation-delay:-1.5s}.yarl__slide_loading line:nth-of-type(5){animation-delay:-1.375s}.yarl__slide_loading line:nth-of-type(6){animation-delay:-1.25s}.yarl__slide_loading line:nth-of-type(7){animation-delay:-1.125s}.yarl__slide_loading line:nth-of-type(8){animation-delay:-1s}.yarl__slide_error{color:red;color:var(--yarl__slide_icon_error_color,red);height:48px;height:var(--yarl__slide_icon_error_size,48px);width:48px;width:var(--yarl__slide_icon_error_size,48px)}@media (prefers-reduced-motion){.yarl__portal,.yarl__slide{transition:unset}.yarl__slide_loading,.yarl__slide_loading line{animation:unset}}.yarl__toolbar{bottom:auto;display:flex;justify-content:flex-end;left:auto;padding:8px;padding:var(--yarl__toolbar_padding,8px);position:absolute;right:0;top:0}[dir=rtl] .yarl__toolbar{bottom:auto;left:0;right:auto;top:0}.yarl__icon{height:32px;height:var(--yarl__icon_size,32px);width:32px;width:var(--yarl__icon_size,32px)}.yarl__button{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-color:transparent;background-color:var(--yarl__button_background_color,transparent);border:0;border:var(--yarl__button_border,0);color:hsla(0,0%,100%,.8);color:var(--yarl__color_button,hsla(0,0%,100%,.8));cursor:pointer;filter:drop-shadow(2px 2px 2px rgba(0,0,0,.8));filter:var(--yarl__button_filter,drop-shadow(2px 2px 2px rgba(0,0,0,.8)));line-height:0;margin:0;margin:var(--yarl__button_margin,0);outline:none;padding:8px;padding:var(--yarl__button_padding,8px);-webkit-tap-highlight-color:transparent}.yarl__button:focus{color:#fff;color:var(--yarl__color_button_active,#fff)}.yarl__button:focus:not(:focus-visible){color:hsla(0,0%,100%,.8);color:var(--yarl__color_button,hsla(0,0%,100%,.8))}.yarl__button:focus-visible{color:#fff;color:var(--yarl__color_button_active,#fff)}@media (hover:hover){.yarl__button:focus-visible:hover,.yarl__button:focus:hover,.yarl__button:hover{color:#fff;color:var(--yarl__color_button_active,#fff)}}.yarl__button:disabled{color:hsla(0,0%,100%,.4);color:var(--yarl__color_button_disabled,hsla(0,0%,100%,.4));cursor:default}.yarl__navigation_next,.yarl__navigation_prev{padding:24px 16px;padding:var(--yarl__navigation_button_padding,24px 16px);position:absolute;top:50%;transform:translateY(-50%)}.yarl__navigation_prev{left:0}[dir=rtl] .yarl__navigation_prev{left:unset;right:0;transform:translateY(-50%) rotate(180deg)}.yarl__navigation_next{right:0}[dir=rtl] .yarl__navigation_next{left:0;right:unset;transform:translateY(-50%) rotate(180deg)}.yarl__no_scroll{height:100%;overflow:hidden;overscroll-behavior:none}@keyframes yarl__delayed_fadein{0%{opacity:0}80%{opacity:0}to{opacity:1}}@keyframes yarl__stroke_opacity{0%{stroke-opacity:1}to{stroke-opacity:.125}}.yarl__slide_captions_container{background:rgba(0,0,0,.5);background:var(--yarl__slide_captions_container_background,rgba(0,0,0,.5));left:0;left:var(--yarl__slide_captions_container_left,0);padding:16px;padding:var(--yarl__slide_captions_container_padding,16px);position:absolute;right:0;right:var(--yarl__slide_captions_container_right,0);-webkit-transform:translateZ(0)}.yarl__slide_title{color:#fff;color:var(--yarl__slide_title_color,#fff);font-size:125%;font-size:var(--yarl__slide_title_font_size,125%);font-weight:bolder;font-weight:var(--yarl__slide_title_font_weight,bolder);max-width:calc(100% - 0px);max-width:calc(100% - var(--yarl__toolbar_width, 0px));overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.yarl__slide_title_container{top:0;top:var(--yarl__slide_title_container_top,0)}.yarl__slide_description{display:-webkit-box;hyphens:auto;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:3;-webkit-line-clamp:var(--yarl__slide_description_max_lines,3);color:#fff;color:var(--yarl__slide_description_color,#fff);text-align:start;text-align:var(--yarl__slide_description_text_align,start)}.yarl__slide_description_container{bottom:0;bottom:var(--yarl__slide_description_container_bottom,0)}.ImageLightbox_button__jOr1d{cursor:url(https://yastatic.net/s3/education-portal/promo/43e8d1eef4d5104b-d41d8cd98f00b204e9800998ecf8427e/_next/static/media/cursor-pointer.1d4bf774.svg),pointer}.ArticleNav_articleNav__hapYN{position:fixed;z-index:101;top:0;right:250px;left:250px;display:flex;flex-flow:row nowrap;justify-content:center;align-items:center;margin:0 auto;padding:10px 0;color:var(--color-text)}@media (max-width:1023px){.ArticleNav_articleNav__hapYN{position:static;padding:17px 0}.ArticleNav_articleNavPreview__XvUe7{display:none}}.ArticleNav_text__BPtjn{padding:0 30px;font:500 32px/.9 var(--font-family-heading);letter-spacing:-.01em}@media (max-width:1023px){.ArticleNav_text__BPtjn{padding:0 24px;font-size:24px}.ArticleNav_articleNavInverseColors__WDHP3 .ArticleNav_text__BPtjn{color:#fff;color:var(--color-text-white)}}.ArticleNav_btn__gwLFu{position:relative;display:inline-block;box-sizing:border-box;max-width:none;min-height:0;margin:0;padding:0;font:500 32px/.9 var(--font-family-heading);cursor:url(https://yastatic.net/s3/education-portal/promo/43e8d1eef4d5104b-d41d8cd98f00b204e9800998ecf8427e/_next/static/media/cursor-pointer.1d4bf774.svg),pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;text-align:center;color:currentColor;border:none;border-radius:0;background:transparent;-webkit-appearance:none;-moz-appearance:none;appearance:none;transition:color .3s,opacity .3s}@media (max-width:1023px){.ArticleNav_btn__gwLFu{font-size:24px}}.ArticleNav_btn__gwLFu[disabled]{pointer-events:none;opacity:.3}@media (hover:hover) and (pointer:fine){.ArticleNav_btn__gwLFu:hover{color:var(--color-link-hover)}}.ArticleNav_icon__gZ0ME{width:32px;height:41px}@media (max-width:1023px){.ArticleNav_icon__gZ0ME{width:23px;height:29px}}.ArticleNav_btnPrev__KMaaX .ArticleNav_icon__gZ0ME{transform:rotate(180deg)}.Heading_heading__m7ghs{margin:0 0 25px;padding:0;font:500 36px/.9 var(--font-family-heading);letter-spacing:-.01em}@media (max-width:767px){.Heading_heading__m7ghs{margin:0 0 16px;font-size:24px}}.Heading_headingPreview__pE4gz{margin:0 0 16px;font-size:32px}.Heading_headingNoMargin__1eBke{margin-bottom:0}@media (max-width:767px){.Heading_headingNoMargin__1eBke{margin-bottom:0}}.SocialMenu_socialMenu__Uk12B{position:relative;left:-6px;display:flex;flex-flow:row wrap;justify-content:flex-start;align-items:flex-start;margin:-3px}@media (max-width:767px){.SocialMenu_socialMenu__Uk12B{justify-content:flex-start}}.SocialMenu_link__IVVou{display:block;flex-grow:0;flex-shrink:0;box-sizing:border-box;height:40px;margin:3px;padding:13px 16px;font:normal 14px/1 var(--font-family-text);border-radius:12px;background:transparent}@media (max-width:767px){.SocialMenu_link__IVVou{height:34px;padding:11px 13px;font-size:12px;border-radius:10px}}.SocialMenu_link__IVVou:hover{color:var(--color-link-hover)}.SocialMenu_linkWithIcon__xFN4n{padding:0}@media (max-width:767px){.SocialMenu_linkWithIcon__xFN4n{padding:0}}.SocialMenu_icon__fJxgt{width:40px;height:40px}@media (max-width:767px){.SocialMenu_icon__fJxgt{width:34px;height:34px}}.Footer_footer__oileP{margin:0;padding:10px 0;color:var(--color-text);page-break-inside:avoid}.Footer_container__FOeOm{position:relative}.Footer_inset__Br1JD{max-width:220px;margin:35px auto 0}@media (max-width:767px){.Footer_inset__Br1JD{max-width:324px}}.Footer_footerPreview__gaorW .Footer_inset__Br1JD{max-width:400rem}.Footer_logoWrap__uJWwM{max-width:453px;margin:0 auto}.Footer_logo__Tc8CI{display:block;width:100%;height:100%}.Footer_heartWrap__1lPjy{text-align:center}.Footer_text__CEI9n{margin:35px 0 0;font:normal 18px/1 var(--font-family-text)}.Footer_text__CEI9n p{margin:.8em 0}.Footer_text__CEI9n p:first-child{margin-top:0}.Footer_text__CEI9n p:last-child{margin-bottom:0;line-height:1.3}.Footer_text__CEI9n a{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px;color:currentColor}.Footer_text__CEI9n a:focus,.Footer_text__CEI9n a:hover{color:var(--color-link-hover)}.Footer_menuWrap__orTIC{margin:45px 0 0}.Footer_subscribe__Dij3X{margin:2px 0 0}.Footer_subscribeLink__1U6Sc{font:500 16px/1.1 var(--font-family-text);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px}.Footer_copyright__pgiU3{margin:15px 0 0;padding:0;font:normal 12px/1.1 var(--font-family-text)}.Footer_footerPreview__gaorW .Footer_copyright__pgiU3{max-width:220px}.Footer_copyright__pgiU3 p{margin:.8em 0}.Footer_copyright__pgiU3 p:first-child{margin-top:0;margin-bottom:8px}.Footer_copyright__pgiU3 p:last-child{margin-bottom:0}.Footer_copyright__pgiU3 a{text-decoration:underline;color:currentColor}.Article_article__7Oqnj{position:relative;overflow:hidden;min-height:calc(100dvh - var(--height-header));opacity:1;color:var(--color-text);color:var(--article-text-color,var(--color-text));background:var(--color-bg-body);background:var(--article-bg-color,var(--color-bg-body));transition:opacity 0s}.Article_articlePreview__JGTMZ{min-height:100%}.Article_articleReady__dEgwF{opacity:1;transition:opacity .3s}.Article_articleLink__whqDm{position:absolute;top:0;right:0;bottom:0;left:0;background-color:var(--color-black-op0);transition:background-color .3s}@media (max-width:767px){.Article_articleLink__whqDm{position:static;display:flex;justify-content:stretch;align-items:center;box-sizing:border-box;min-height:125px;padding:40px var(--padding-side-sm);font:500 24px/.9 var(--font-family-heading);letter-spacing:-.01em;color:currentColor;background:transparent}}@media (hover:hover) and (pointer:fine){.Article_articleLink__whqDm:focus,.Article_articleLink__whqDm:hover{background-color:var(--color-black-op10)}}.Article_articleLinkText__Q3_6o{display:none}@media (max-width:767px){.Article_articleLinkText__Q3_6o{display:inline}}.Article_content__5UiKt{padding:50px 0}@media (max-width:767px){.Article_content__5UiKt{padding:30px 0}.Article_articlePreview__JGTMZ .Article_content__5UiKt{display:none}}.Article_headingLink__9gMPl{text-decoration:none;color:currentColor}.Article_body__LvsU4{font:normal 20px/1 var(--font-family-text)}@media (max-width:767px){.Article_body__LvsU4{font-size:16px}}.Article_articlePreview__JGTMZ .Article_body__LvsU4{font-size:18px}.Article_body__LvsU4 p{margin:.5em 0}.Article_body__LvsU4>p:first-child strong{font-family:var(--font-family-accent)}.Article_body__LvsU4 a{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px;color:var(--color-link-body)}.Article_body__LvsU4 ul{margin:.8em 0;padding:0;list-style:none}.Article_body__LvsU4 ul li{position:relative;margin:.5em 0;padding:0 0 0 22px}.Article_body__LvsU4 ul li:before{position:absolute;top:4px;left:4px;width:12px;height:12px;content:"";border-radius:14px;background-color:currentColor}@media (max-width:767px){.Article_body__LvsU4 ul li:before{top:2px}}.Article_articlePreview__JGTMZ .Article_body__LvsU4 ul li:before{top:3px}.Article_body__LvsU4 ol{margin:.8em 0;padding:0;list-style:none;counter-reset:index}.Article_body__LvsU4 ol li{position:relative;margin:.5em 0;padding:0 0 0 40px;counter-increment:index}.Article_body__LvsU4 ol li:before{position:absolute;top:.1em;left:0;font-family:var(--font-family-heading);font-weight:500;content:counter(index,decimal-leading-zero) "/"}@media (max-width:767px){.Article_body__LvsU4 ol li:before{font-size:18px}}.Article_body__LvsU4 img{display:block;width:100%;max-width:324px;height:auto}@media (max-width:767px){.Article_body__LvsU4 img{max-width:400px}}.Article_body__LvsU4 [data-styled-img]{display:flex;flex-flow:row wrap;justify-content:flex-start;align-items:flex-start;margin:25px 0}@media (max-width:767px){.Article_body__LvsU4 [data-styled-img]{margin:32px 0}}.Article_articlePreview__JGTMZ .Article_body__LvsU4 [data-styled-img]{margin:32px 0}.Article_body__LvsU4 [data-styled-img] img{flex-grow:1;flex-shrink:0;margin:0 13px 0 0}@media (max-width:767px){.Article_body__LvsU4 [data-styled-img] img{margin:0}}.Article_articlePreview__JGTMZ .Article_body__LvsU4 [data-styled-img] img{margin:0}.Article_body__LvsU4 [data-styled-img] [data-styled-img-lightbox]+span,.Article_body__LvsU4 [data-styled-img] img+span{flex-grow:0;flex-shrink:0;max-width:220px;font-size:13px}@media (max-width:767px){.Article_body__LvsU4 [data-styled-img] [data-styled-img-lightbox]+span,.Article_body__LvsU4 [data-styled-img] img+span{width:100%;max-width:100%;margin:11px 0 0}}.Article_articlePreview__JGTMZ .Article_body__LvsU4 [data-styled-img] img+span{width:100%;max-width:100%;margin:11px 0 0}.Article_body__LvsU4 blockquote{margin:.8em 0;padding:0 0 0 10px;font-style:italic;border-left:2px solid}.Article_body__LvsU4 h3{margin:25px 0;padding:0;font:500 32px/.9 var(--font-family-heading);letter-spacing:-.01em}@media (max-width:767px){.Article_body__LvsU4 h3{margin:16px 0;font-size:24px}}.Article_articlePreview__JGTMZ .Article_body__LvsU4 h3{margin:16px 0;font-size:32px}.Article_body__LvsU4 p strong{overflow-wrap:break-word}.Article_body__LvsU4 pre{overflow-x:auto;padding:10px;border:1px dashed}@media (max-width:767px){.Article_body__LvsU4 pre{margin:.5em 0}}.Article_articlePreview__JGTMZ .Article_body__LvsU4 pre{overflow-x:hidden}.Article_body__LvsU4 pre code{font-size:.8em}