/* Только страница занятия: плеер, чат, опрос. Остальное в site.css. */
.live-session-player video{width:100%;background:#000}
.live-session-note{color:var(--muted);font-size:14px}
.live-session-player{position:relative}
.live-session-player__empty{min-height:200px;background:#222;text-align:center;padding:48px 24px}
.live-session-player__empty .countdown{display:block;font-size:36px;font-weight:900;color:#fff;font-variant-numeric:tabular-nums}
.live-session-player__empty .countdown-label{color:#ccc}
.live-session-player .video-frame{position:relative;overflow:hidden;aspect-ratio:16/9;background:#000}
.live-session-player .video-frame video{display:block;width:100%;height:100%;object-fit:contain}
.player-spinner{position:absolute;top:0;right:0;bottom:0;left:0;z-index:4;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.35);pointer-events:none}
.player-spinner.is-active{display:flex}
.player-spinner__ring{width:48px;height:48px;border:4px solid rgba(255,255,255,.25);border-top-color:#fff;border-radius:50%;animation:player-spin 0.9s linear infinite}
@keyframes player-spin{to{transform:rotate(360deg)}}
:root{--plyr-color-main:#D4AF37;
  --plyr-font-family:Inter,Roboto,Arial,sans-serif;
  --plyr-video-control-color:#f5f5f7;
  --plyr-video-control-color-hover:#0B0F19;
  --plyr-video-control-background-hover:#D4AF37;
  --plyr-video-controls-background:linear-gradient(rgba(11,15,25,0),rgba(11,15,25,.78));
  --plyr-menu-background:rgba(11,15,25,.96);
  --plyr-menu-color:#f5f5f7;
  --plyr-menu-arrow-color:#f5f5f7;
  --plyr-menu-back-border-color:rgba(212,175,55,.25);
  --plyr-menu-back-border-shadow-color:rgba(11,15,25,.96);
  --plyr-tooltip-background:rgba(11,15,25,.92);
  --plyr-tooltip-color:#f5f5f7;
  --plyr-range-thumb-background:var(--surface-2);
  --plyr-video-progress-buffered-background:rgba(245,245,247,.28)}
.live-session-player .plyr{width:100%;background:#000;aspect-ratio:16/9}
.live-session-player .plyr__menu__container{border:1px solid var(--line)}
.live-session-player .plyr__control--overlaid{border:1px solid var(--line)}
.live-session-duration{color:var(--muted)}
.live-session-layout--with-chat{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:20px;align-items:start}
.live-chat{display:flex;flex-direction:column;min-width:0;max-height:min(72vh,640px);border:1px solid var(--line);overflow:hidden}
.live-chat__head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line)}
.live-chat__head h2{margin:0;color:var(--accent);font-size:16px;letter-spacing:.02em}
.live-chat__state{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:800;color:var(--muted);white-space:nowrap}
.live-chat__state:before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor}
.live-chat__state.is-open{color:#ff5d6c}
.live-chat__state.is-open:before{animation:live-banner-pulse 1.4s ease-in-out infinite}
.live-chat__list{flex:1;min-height:150px;display:flex;flex-direction:column;gap:2px;margin:0;padding:10px 8px;list-style:none;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}
.live-chat__msg{position:relative;display:grid;grid-template-columns:32px minmax(0,1fr);gap:10px;padding:7px 9px}
.live-chat__msg.is-own{background:var(--surface-2)}
.live-chat__msg.is-banned{opacity:.5}
.live-chat.is-moderator .live-chat__msg{cursor:pointer}
.live-chat.is-moderator .live-chat__msg:hover{background:var(--surface-2)}
.live-chat__avatar{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;overflow:hidden;border:1px solid var(--line);background:var(--surface-2);color:var(--accent);font-size:14px;font-weight:900}
.live-chat__avatar img{width:100%;height:100%;object-fit:cover}
.live-chat__content{min-width:0}
.live-chat__meta{display:flex;align-items:baseline;flex-wrap:wrap;gap:8px}
.live-chat__meta b{font-size:13px;font-weight:800;color:var(--text);overflow-wrap:anywhere}
.live-chat__msg.is-admin .live-chat__meta b{color:var(--accent)}
.live-chat__msg.is-admin .live-chat__meta b:after{content:"вед.";margin-left:6px;padding:1px 6px;background:var(--surface-2);font-size:10px;letter-spacing:.04em;vertical-align:1px}
.live-chat__meta time{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.live-chat__flag{padding:1px 7px;background:rgba(255,93,108,.18);color:#b3261e;font-size:10px;font-style:normal;font-weight:800}
.live-chat__content p{margin:2px 0 0;font-size:14px;line-height:1.45;white-space:pre-wrap;overflow-wrap:anywhere}
.live-chat__empty{margin:0;padding:20px 16px;color:var(--muted);font-size:14px;text-align:center}
.live-chat__empty[hidden]{display:none}
.live-chat__mod{position:absolute;right:8px;top:calc(100% - 6px);z-index:12;display:grid;gap:4px;min-width:190px;padding:6px;background:var(--surface-2);border:1px solid var(--line)}
.live-chat__mod button{min-height:40px;padding:9px 12px;border:0;background:transparent;color:var(--text);font:inherit;font-weight:800;text-align:left;cursor:pointer}
.live-chat__mod-ban{color:#b3261e!important}
.live-chat__mod-ban:hover{background:rgba(255,93,108,.16)}
.live-chat__mod-unban{color:#17603a!important}
.live-chat__mod-unban:hover{background:rgba(72,207,113,.16)}
.live-chat__mod-cancel:hover{background:var(--surface-2)}
.live-chat__mod button:disabled{opacity:.5;cursor:wait}
.live-chat__form{display:grid;grid-template-columns:minmax(0,1fr) 44px;gap:8px;align-items:end;padding:10px;border-top:1px solid var(--line);background:var(--surface-2)}
.live-chat__form textarea{width:100%;min-height:44px;max-height:120px;resize:none;border:1px solid var(--line);background:var(--surface-2);color:var(--text);padding:11px 13px;font:inherit;font-size:14px;line-height:1.35}
.live-chat__send{display:grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;color:#071018;cursor:pointer}
.live-chat__send svg{width:20px;height:20px;fill:currentColor}
.live-chat__send:disabled{opacity:.55;cursor:wait}
.live-chat__note{margin:0;padding:12px 16px;color:var(--muted);font-size:13px;text-align:center}
.live-chat__note--login{border-top:1px solid var(--line)}
.live-chat__note[hidden]{display:none}
.live-chat__form[hidden]{display:none}
@media(max-width:1080px){.live-session-layout--with-chat{grid-template-columns:1fr}.live-chat{max-height:460px}}
.live-session-side{display:grid;gap:16px;min-width:0}
.video-feedback{min-width:0;border:1px solid var(--line);opacity:.55}
.video-feedback:hover{opacity:1}
.video-feedback:focus-within{opacity:1}
.video-feedback:has([data-vfb-details]:not([hidden])){opacity:1}
.video-feedback[hidden],.video-feedback [hidden]{display:none!important}
.live-session-player + .video-feedback{margin-top:20px}
.video-feedback__head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:2px 4px 2px 16px;border-bottom:1px solid var(--line)}
.video-feedback__head h2{margin:0;color:var(--accent);font-size:16px;letter-spacing:.02em}
.video-feedback__close{flex:none;width:44px;height:44px;border:0;border-radius:50%;background:transparent;color:inherit;opacity:.55;font:400 24px/1 Arial,sans-serif;cursor:pointer}
.video-feedback__close:hover{opacity:1}
.video-feedback__body{padding:14px 16px 16px}
.video-feedback__thumbs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.live-session-player + .video-feedback .video-feedback__thumbs{grid-template-columns:repeat(2,minmax(0,220px))}
.video-feedback .video-feedback__thumb{gap:7px;width:100%;min-height:44px;padding:8px 12px;white-space:nowrap;font:inherit;font-size:14px;font-weight:800}
.video-feedback__thumb span{font-size:18px;line-height:1}
.video-feedback .video-feedback__thumb[aria-pressed="true"]{border-color:var(--accent);background:var(--surface);color:var(--accent)}
.video-feedback__details{margin:14px 0 0}
.video-feedback__options{display:grid;gap:8px;min-width:0;margin:0 0 12px;padding:0;border:0}
.live-session-player + .video-feedback .video-feedback__options{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.video-feedback__options legend{margin:0 0 8px;padding:0;font-size:14px;font-weight:800}
.video-feedback__option{display:flex;align-items:flex-start;gap:9px;font-size:14px;line-height:1.4;cursor:pointer}
.video-feedback__option input{flex:none;width:18px;height:18px;margin:1px 0 0;accent-color:var(--accent)}
.video-feedback__details textarea{display:block;width:100%;box-sizing:border-box;min-height:64px;margin:0 0 12px;resize:vertical;border:1px solid var(--line);background:var(--surface-2);color:var(--text);padding:11px 13px;font:inherit;font-size:16px;line-height:1.35}
.video-feedback__details .button{font:inherit;font-weight:800}
.video-feedback__status{margin:12px 0 0;color:var(--accent);font-size:14px;font-weight:700}
.video-feedback__error{margin:12px 0 0;color:#b3261e;font-size:14px}
.video-feedback button:disabled{opacity:.6;cursor:wait}
/* T-111. С плеером страница занятия во всю ширину сайта, закрытое занятие — прежней колонкой.
   Без чата сбоку плеер во всю ширину, но целиком помещается в высоту окна. */
.class-page{max-width:840px;margin:0 auto}
.class-page--wide{max-width:none}
.class-page .article-page,.class-page .article-page+.content-section{max-width:none}
@media (min-width:1001px){.class-page--wide .live-session-layout>.live-session-player{max-width:calc((100vh - 120px) * 16 / 9);margin:0 auto}}
.live-session-main{min-width:0}
.live-session-layout+.richtext{margin-top:16px}
.live-session-layout .live-chat--archive{margin-top:20px;max-height:420px}
/* Закрытое занятие: замок, слова и кнопка на самой обложке, обложка серая, как закрытая карточка.
   Кадр не ниже 16:9 (псевдоэлемент с padding-top) и растёт, если словам мало места (телефон). */
.locked-cover{position:relative;display:-webkit-flex;display:flex;margin:12px 0;overflow:hidden;background:#1b1b1b;border-radius:calc(var(--radius) - 4px)}
.locked-cover:before{content:"";display:block;width:0;padding-top:56.25%}
.locked-cover__img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:contain;-webkit-filter:grayscale(1);filter:grayscale(1)}
.locked-cover .paywall-panel{position:relative;-webkit-flex:1 1 auto;flex:1 1 auto;display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;-webkit-justify-content:center;justify-content:center;-webkit-align-items:center;align-items:center;min-width:0;margin:0;padding:24px;background:rgba(0,0,0,.6);border:0;border-radius:0;color:#fff;text-align:center}
.locked-cover .paywall-panel h2{margin:6px 0 8px;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.5)}
.locked-cover .paywall-panel p{max-width:560px;margin:0;color:#fff}
.locked-cover .paywall-panel .quiet-link,.locked-cover .paywall-panel .quiet-link:hover{margin:0 6px;color:#fff}
.locked-cover .paywall-panel__lock{font-size:30px}
@media (max-width:480px){
.locked-cover .paywall-panel{padding:16px 12px}
.locked-cover .paywall-panel h2{font-size:20px}
.locked-cover .paywall-panel p{font-size:14px;line-height:1.4}
.locked-cover .paywall-panel__lock{font-size:24px}
}
/* Занятие курса: курс над заголовком, соседние занятия, курс и все его занятия под статьёй. */
.lesson-course{margin:0 0 4px;color:var(--muted);font-size:15px;font-style:italic}
.lesson-nav{display:-webkit-flex;display:flex;-webkit-justify-content:space-between;justify-content:space-between;margin:18px 0 0}
.lesson-nav__link{display:block;-webkit-flex:0 1 49%;flex:0 1 49%;width:49%;box-sizing:border-box;min-height:44px;padding:10px 14px;background:var(--surface-2);border:1px solid var(--line);border-radius:calc(var(--radius) - 4px);color:var(--text);text-decoration:none}
.lesson-nav__link:hover{color:var(--text);border-color:var(--accent);text-decoration:none}
.lesson-nav__link--next{text-align:right}
.lesson-nav__link--none{visibility:hidden}
.lesson-nav__label{display:block;color:var(--link);font-size:14px}
.lesson-nav__title{display:block;margin-top:2px;font-weight:bold;line-height:1.3}
.lesson-nav__title i{font-style:normal}
.lesson-nav__date{display:block;margin-top:2px;color:var(--muted);font-size:13px;font-style:italic}
.lesson-nav__link--closed{background:var(--locked)}
.lesson-nav__link--closed .lesson-nav__title{color:var(--locked-text)}
.course-offer__kind{margin:0 0 4px;color:var(--muted);font-size:15px;font-style:italic}
.course-offer h2{margin:0 0 12px}
.course-offer h2 a{color:inherit;text-decoration:none}
.course-offer__buy{display:-webkit-flex;display:flex;-webkit-flex-wrap:wrap;flex-wrap:wrap;-webkit-align-items:center;align-items:center}
.course-offer__buy .button{margin:0 16px 8px 0}
.course-offer__buy .quiet-link{margin:0 0 8px}
.course-offer__buy--end{margin-top:16px}
.course-offer__terms{margin:0;color:var(--muted);font-size:14px}
.course-pitch{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.course-pitch__more>summary{display:inline-block;min-height:44px;padding:10px 0;color:var(--link);font-style:italic;cursor:pointer;list-style:none}
.course-pitch__more>summary::-webkit-details-marker{display:none}
.course-pitch__close,.course-pitch__more[open] .course-pitch__open{display:none}
.course-pitch__more[open] .course-pitch__close{display:inline}
.course-lessons .section-more{margin-top:10px}
.list-row--current{border-color:var(--accent);box-shadow:inset 4px 0 0 var(--accent)}
.list-row__here{background:var(--accent);color:var(--accent-text)}
@media (max-width:480px){
.lesson-nav{display:block;margin-top:10px}
.lesson-nav__link{width:auto;margin-top:8px;padding:8px 12px}
.lesson-nav__link--none{display:none}
.lesson-nav__title{font-size:15px}
.course-offer__buy .button{width:100%;margin-right:0}
}