/* Конструктор сценария урока: панели, слайд, объекты, выбор материалов, конструктор интерактива, просмотр */
body.is-editor{background:#EDEFF3;overflow:hidden}
body.is-editor .page{min-height:0}
.sc-narrow{display:none;padding:24px 16px}

/* ---------- шапка редактора ---------- */
.edh{height:52px;background:#fff;border-bottom:1px solid var(--line);display:grid;grid-template-columns:260px 1fr 260px;align-items:center;padding:0 16px;position:relative;z-index:46}
.edh .logo{width:auto}
.edh__center{flex-direction:column;justify-content:center;text-align:center;line-height:1.2}
.edh__title{font-weight:700;font-size:14px;max-width:560px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.edh__mode{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--muted);border:0;background:none;padding:2px 6px;border-radius:4px}
.edh__mode:hover{color:var(--accent)}
.edh__mode .i{color:var(--hot)}
.edh__menu{left:50%;transform:translateX(-50%);top:calc(100% + 4px)}
.edh__right{display:flex;justify-content:flex-end;align-items:center;gap:10px}

/* ---------- панель инструментов ---------- */
.sc{height:calc(100vh - 52px);display:flex;flex-direction:column}
.sc-tools{height:62px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:stretch;padding:0 12px;gap:8px;flex:none;position:relative;z-index:44}
.sc-tools__left{display:flex;align-items:center;gap:2px;width:248px;flex:none}
.sc-tools__left .btn{margin-right:10px}
.sc-tools__main{flex:1;display:flex;justify-content:center;align-items:stretch;min-width:0}
.sc-tools__right{display:flex;align-items:stretch;flex:none;width:248px;justify-content:flex-end}
.tool-wrap{position:relative;display:flex}
.tool{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-width:66px;padding:0 8px;border:0;background:none;color:#2A3350;font-size:11px;white-space:nowrap}
.tool .i{color:#2A3350}
.tool:hover,.tool[aria-expanded="true"]{background:#EFF1F6}
.tool:disabled{opacity:.35;cursor:default;background:none}
.tool--sm{min-width:58px;color:var(--muted)}
.tool--sm .i{color:var(--muted)}
.tool-pop{position:absolute;top:calc(100% + 4px);left:50%;transform:translateX(-50%);min-width:240px;background:#fff;border:2px solid #8A5CE6;border-radius:var(--r-l);box-shadow:0 14px 34px rgba(24,32,64,.18);padding:4px;display:none;z-index:50}
.tool-wrap.is-open .tool-pop{display:block}
.tool-pop--right{left:auto;right:0;transform:none}
.tool-pop--end{left:auto;right:-20px;transform:none}
.tool-pop--wide{min-width:380px}
.pop-item{display:flex;align-items:center;gap:10px;width:100%;padding:11px 12px;border:0;background:none;border-radius:6px;font-size:13px;color:var(--text);text-align:left;white-space:nowrap}
.pop-item+.pop-item{border-top:1px solid #EEF0F4;border-radius:0}
.pop-item:hover{background:var(--accent-soft);color:var(--accent)}
.pop-item .i{color:#2A3350}
.pop-label{font-size:11px;color:var(--muted);padding:8px 8px 4px}
.pop-title{font-weight:700;font-size:13px;margin-bottom:2px}
.shapes-pop{min-width:0;width:200px;padding:4px 6px 6px}
.shape-row{display:flex;gap:2px;padding:0 2px 4px;border-bottom:1px solid #EEF0F4}
.shape-row:last-child{border-bottom:0}
.shape-btn{width:40px;height:38px;border:1px solid transparent;border-radius:6px;background:none;display:grid;place-items:center;color:#2A3350;padding:0}
.shape-btn:hover{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent)}
.shape-row--wide{padding-bottom:2px}
.shape-btn--wide{width:100%;height:42px;display:flex;justify-content:flex-start;gap:8px;padding:0 8px;font-size:12px;white-space:nowrap}
.tpick{min-width:0;padding:10px}
.tpick__grid{display:grid;grid-template-columns:repeat(10,16px);gap:3px}
.tpick__cell{width:16px;height:16px;border:1px solid #D3D8E3;border-radius:2px;background:#fff;padding:0}
.tpick__cell.is-on{background:#D9E0FB;border-color:#8A9BEA}
.tpick__label{text-align:center;font-size:12px;font-weight:700;padding-top:8px;margin-top:8px;border-top:1px solid var(--line)}
.linkform{padding:14px;gap:10px}
.tool-wrap.is-open .linkform{display:grid}
.linkform__row{display:grid;grid-template-columns:90px 1fr;align-items:center;gap:10px;font-size:13px}
.linkform__row sup{color:var(--bad)}
.linkform__hint{font-size:12px;color:var(--muted);margin-top:4px}
.linkform__actions{display:flex;justify-content:flex-end;gap:8px}
.gridpop{min-width:250px;padding:14px;gap:8px}
.tool-wrap.is-open .gridpop{display:grid}
.gridpop .prow .uis{width:110px}
.tpl-pop{min-width:0;width:330px;padding:6px 10px 10px}
.tpl-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.tpl{display:flex;flex-direction:column;gap:6px;border:1px solid var(--line);border-radius:6px;background:#fff;padding:6px;font-size:12px;color:var(--text-2);text-align:left}
.tpl:hover{border-color:var(--accent);color:var(--accent)}
.tpl__art{position:relative;aspect-ratio:16/9;background:#F4F5F9;border-radius:3px;display:block}
.tpl__art i{position:absolute;display:block;border-radius:2px}
.tpl__art .t-h{height:10%;background:#7C8AB3}
.tpl__art .t-l{height:6%;background:#C3CAE0}
.tpl__art .t-b{background:#DDE2EF}
.tpl__art .t-img{background:#FFE2B8}

/* ---------- рабочая область ---------- */
.sc-body{flex:1;display:grid;grid-template-columns:260px minmax(0,1fr) 300px;min-height:0}
.sc-left{background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.scn{padding:12px 14px;border-bottom:1px solid var(--line);display:grid;gap:6px}
.scn__row{display:flex;justify-content:space-between;align-items:center;font-size:13px}
.scn__time{display:inline-flex;align-items:center;gap:4px;color:var(--text-2);font-size:12px}
.scn__time.is-over{color:var(--bad);font-weight:700}
.scn__links{display:flex;gap:14px}
.scn__links button{border:0;background:none;padding:0;color:var(--text);text-decoration:underline;text-underline-offset:3px;font-size:12px}
.scn__links button:hover{color:var(--accent)}
.sc-tabs{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line)}
.sc-tabs button{height:40px;border:0;background:none;font-weight:700;font-size:13px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.sc-tabs button.is-active{color:var(--text);border-bottom-color:var(--hot)}
.sc-views{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line)}
.sc-views button{height:32px;border:0;background:none;color:var(--muted);display:grid;place-items:center}
.sc-views button.is-active{color:var(--accent);background:var(--accent-soft)}
.frags{flex:1;overflow:auto;padding:4px 0 8px}
.frag{padding:10px 12px 10px 11px;border-left:3px solid transparent}
.frag.is-active{border-left-color:var(--hot);background:#FAFAFC}
.frag__head{display:flex;align-items:center;gap:6px;font-size:12px;min-height:24px}
.frag__n{font-weight:700;color:var(--text-2);flex:none}
.frag__title{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}
.frag__title.is-empty{font-style:italic;color:var(--muted)}
.frag__title input{width:100%;font:inherit;border:1px solid var(--accent);border-radius:4px;padding:2px 4px;outline:none}
.frag__icon{border:0;background:none;padding:2px;color:var(--muted);border-radius:4px;display:grid;place-items:center}
.frag__icon:hover{color:var(--accent);background:var(--accent-soft)}
.frag__thumbs{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:6px}
.thumb{position:relative;aspect-ratio:16/9;border:1px solid var(--line-2);border-radius:3px;background:#fff;overflow:hidden;padding:0;cursor:pointer}
.thumb:hover{border-color:var(--accent-line)}
.thumb.is-active{border:2px solid var(--hot)}
.thumb__empty{position:absolute;inset:0;display:grid;place-items:center;color:#9AA0B2;font-size:18px}
.thumb__obj{position:absolute;border-radius:1px}
.thumb__kind{position:absolute;right:2px;bottom:2px;color:#9AA0B2;background:rgba(255,255,255,.85);border-radius:2px;display:grid}
.frag__foot{display:flex;align-items:center;gap:4px;margin-top:6px;font-size:12px;color:var(--muted)}
.frag__min{display:inline-flex;align-items:center;gap:2px}
.frag__min button{width:20px;height:20px;border:0;background:none;border-radius:4px;color:var(--muted);display:grid;place-items:center;padding:0}
.frag__min button:hover{background:#EEF0F5;color:var(--text)}
.frag__acts{margin-left:auto;display:flex;gap:1px;opacity:0}
.frag:hover .frag__acts,.frag.is-active .frag__acts{opacity:1}
.add-frag{margin:6px 12px 12px;height:34px;border:1px solid var(--line-2);border-radius:17px;background:#fff;font-weight:700;font-size:12px;display:flex;align-items:center;justify-content:center;gap:6px;color:var(--text)}
.add-frag:hover{border-color:var(--accent);color:var(--accent)}
.olist{list-style:none;margin:0;padding:6px 0;flex:1;overflow:auto}
.olist li{display:flex;align-items:center;gap:8px;padding:8px 12px;font-size:13px;cursor:pointer}
.olist li:hover{background:#F6F7FA}
.olist li.is-sel{background:var(--accent-soft)}
.olist .olist__name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.olist .i{color:var(--muted)}
.olist button{border:0;background:none;padding:2px;border-radius:4px;color:var(--muted);display:grid}
.olist button:hover{color:var(--accent)}
.olist__empty{padding:14px;color:var(--muted);font-size:13px}

.sc-stage{min-width:0;display:flex;flex-direction:column;min-height:0}
.sc-stage__bar{height:40px;display:flex;align-items:center;gap:10px;padding:0 20px;font-size:12px;color:var(--text-2);flex:none}
.sc-stage__bar b{color:var(--text)}
.sc-stage__bar .dirty{margin-left:auto;color:#B7791F;display:inline-flex;align-items:center;gap:6px}
.sc-stage__bar .dirty::before{content:"";width:7px;height:7px;border-radius:50%;background:#E8A13A}
.sc-stage__scroll{flex:1;overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding:4px 24px 24px}
.slide{position:relative;isolation:isolate;width:min(100%,1120px);aspect-ratio:16/9;background-color:#fff;box-shadow:0 4px 18px rgba(24,32,64,.12);overflow:hidden;user-select:none;--k:1;flex:none}
.slide.has-grid{background-image:linear-gradient(#DCE5F4 1px,transparent 1px),linear-gradient(90deg,#DCE5F4 1px,transparent 1px);background-size:var(--gs) var(--gs)}
.obj{position:absolute;box-sizing:border-box}
.obj__in{width:100%;height:100%;position:relative}
.obj.is-sel{outline:1.5px solid var(--hot);outline-offset:1px;z-index:900 !important}
.obj.is-hidden{opacity:.35}
.obj.is-locked .obj__lock{display:grid}
.obj__lock{display:none;position:absolute;top:-10px;right:-10px;width:20px;height:20px;border-radius:50%;background:#fff;border:1px solid var(--line-2);place-items:center;color:var(--muted);z-index:2}
.obj__h{position:absolute;width:9px;height:9px;background:#fff;border:1.5px solid var(--hot);border-radius:2px;z-index:3}
.obj__h--nw{left:-6px;top:-6px;cursor:nwse-resize}
.obj__h--ne{right:-6px;top:-6px;cursor:nesw-resize}
.obj__h--sw{left:-6px;bottom:-6px;cursor:nesw-resize}
.obj__h--se{right:-6px;bottom:-6px;cursor:nwse-resize}
.obj.is-editing{cursor:text}

/* ---------- объекты на слайде ---------- */
.o-text{width:100%;height:100%;overflow:hidden;line-height:1.3;outline:none;padding:calc(var(--k) * 4px) calc(var(--k) * 8px);white-space:pre-wrap;word-break:break-word}
.o-text[contenteditable="true"]{box-shadow:inset 0 0 0 1px var(--accent-line);background:rgba(255,255,255,.7);user-select:text}
.o-text ul{margin:0;padding-left:1.2em}
.o-img-wrap{width:100%;height:100%;position:relative}
.o-img{width:100%;height:100%;object-fit:contain}
.o-img-wrap.is-cover .o-img{object-fit:cover}
.o-count{position:absolute;right:6px;bottom:6px;background:rgba(20,26,45,.65);color:#fff;font-size:11px;font-weight:700;border-radius:10px;padding:1px 8px}
.o-ph{width:100%;height:100%;border:2px dashed #C3CAE0;border-radius:6px;display:grid;place-items:center;align-content:center;gap:6px;color:#8A91A4;font-size:12px;background:rgba(255,255,255,.6);text-align:center}
.o-media{width:100%;height:100%;border-radius:calc(var(--k) * 10px);background:linear-gradient(160deg,#27304D,#141A2D);color:#fff;display:flex;flex-direction:column;justify-content:flex-end;padding:calc(var(--k) * 12px);position:relative;overflow:hidden}
.o-media__play{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);width:calc(var(--k) * 60px);height:calc(var(--k) * 60px);border-radius:50%;background:rgba(255,255,255,.18);display:grid;place-items:center}
.o-media__play .i{width:45%;height:45%;fill:#fff;stroke:none}
.o-media__title{font-weight:700;font-size:calc(var(--k) * 15px);position:relative}
.o-media__meta{font-size:calc(var(--k) * 12px);opacity:.75;position:relative;display:flex;gap:8px}
.o-media__badge{position:absolute;top:calc(var(--k) * 10px);left:calc(var(--k) * 10px);background:var(--hot);color:#fff;font-size:calc(var(--k) * 11px);font-weight:700;border-radius:4px;padding:1px 6px}
.o-media video,.o-media audio{position:relative;width:100%}
.o-audio{width:100%;height:100%;border-radius:calc(var(--k) * 12px);background:#F4F1FE;border:1px solid #E1D8FB;display:grid;grid-template-columns:auto 1fr;gap:calc(var(--k) * 12px);align-items:center;padding:calc(var(--k) * 10px) calc(var(--k) * 14px);overflow:hidden}
.o-audio__btn{width:calc(var(--k) * 44px);height:calc(var(--k) * 44px);border-radius:50%;background:#8A5CE6;color:#fff;display:grid;place-items:center}
.o-audio__btn .i{width:45%;height:45%;fill:#fff;stroke:none}
.o-audio__title{font-weight:700;font-size:calc(var(--k) * 14px)}
.o-audio__wave{display:flex;align-items:center;gap:2px;height:calc(var(--k) * 22px);margin-top:4px}
.o-audio__wave i{display:block;width:3px;border-radius:2px;background:#B9A6F3}
.o-table{width:100%;height:100%;border-collapse:collapse;table-layout:fixed;background:#fff;font-size:calc(var(--k) * 17px)}
.o-table td{border:1px solid #8E97AE;padding:calc(var(--k) * 6px) calc(var(--k) * 10px);vertical-align:middle;overflow:hidden;word-break:break-word}
.o-table.has-head tr:first-child td{background:#EEF1F8;font-weight:700}
.o-table td[contenteditable="true"]{outline:none;background:#FFFDF0;user-select:text}
.o-shape{width:100%;height:100%}
.o-shape svg{width:100%;height:100%;overflow:visible;display:block}
.o-number-line{width:100%;height:100%;display:grid;place-items:center}
.o-number-line svg{width:100%;height:100%;overflow:visible;display:block}
.o-number-line text{font-family:Lato,Arial,sans-serif;paint-order:stroke;stroke:#fff;stroke-width:5px;stroke-linejoin:round}
.o-card{width:100%;height:100%;background:#fff;border:1px solid var(--line);border-radius:calc(var(--k) * 12px);overflow:hidden;display:flex;flex-direction:column;box-shadow:0 2px 10px rgba(24,32,64,.08)}
.o-card__head{background:linear-gradient(100deg,#B04BDB,#8A45E0 50%,#6755EC);color:#fff;padding:calc(var(--k) * 12px) calc(var(--k) * 16px);font-weight:700;font-size:calc(var(--k) * 17px);line-height:1.25}
.o-card__kind{font-size:calc(var(--k) * 11px);opacity:.85;font-weight:400;display:block;margin-bottom:2px}
.o-card__rows{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:calc(var(--k) * 8px) calc(var(--k) * 14px);padding:calc(var(--k) * 12px) calc(var(--k) * 16px);font-size:calc(var(--k) * 12px)}
.o-card__rows span{display:block;color:var(--muted);font-size:calc(var(--k) * 11px)}
.o-card__rows b{display:block;color:var(--text)}
.o-card__btn{margin:auto calc(var(--k) * 16px) calc(var(--k) * 14px);background:var(--accent);color:#fff;border-radius:calc(var(--k) * 7px);font-size:calc(var(--k) * 13px);font-weight:700;padding:calc(var(--k) * 8px) calc(var(--k) * 14px);align-self:flex-start;border:0}
.o-res{width:100%;height:100%;background:#fff;border:1px solid var(--line);border-radius:calc(var(--k) * 10px);overflow:hidden;display:grid;grid-template-rows:minmax(0,1fr) auto;box-shadow:0 2px 10px rgba(24,32,64,.08)}
.o-res__cover{background:var(--tint,#EEF0F5);overflow:hidden;min-height:0}
.o-res__cover img{width:100%;height:100%;object-fit:cover}
.o-res__foot{display:flex;align-items:center;gap:calc(var(--k) * 10px);padding:calc(var(--k) * 10px) calc(var(--k) * 14px)}
.o-res__kind{font-size:calc(var(--k) * 11px);color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:700}
.o-res__title{font-weight:700;font-size:calc(var(--k) * 15px);line-height:1.25}
.o-res__btn{margin-left:auto;background:var(--accent-soft);color:var(--accent);border-radius:calc(var(--k) * 6px);font-size:calc(var(--k) * 12px);font-weight:700;padding:calc(var(--k) * 6px) calc(var(--k) * 12px);white-space:nowrap}
.o-book{width:100%;height:100%;background:#fff;border:1px solid var(--line);border-radius:calc(var(--k) * 10px);overflow:hidden;display:flex;flex-direction:column;box-shadow:0 2px 10px rgba(24,32,64,.08)}
.o-book__top{display:flex;align-items:center;gap:calc(var(--k) * 8px);padding:calc(var(--k) * 10px) calc(var(--k) * 16px);background:#F6F7FB;font-size:calc(var(--k) * 12px);color:var(--text-2);border-bottom:1px solid var(--line)}
.o-book__num{font-size:calc(var(--k) * 30px);font-weight:700;color:var(--accent);text-align:center;margin-top:calc(var(--k) * 14px)}
.o-book__title{text-align:center;font-size:calc(var(--k) * 22px);font-weight:700;padding:0 calc(var(--k) * 16px)}
.o-book__text{padding:calc(var(--k) * 12px) calc(var(--k) * 22px);font-size:calc(var(--k) * 14px);line-height:1.55;color:var(--text-2);overflow:hidden}
.o-book__btn{margin:auto auto calc(var(--k) * 14px);background:var(--hot);color:#fff;border-radius:calc(var(--k) * 7px);font-size:calc(var(--k) * 13px);font-weight:700;padding:calc(var(--k) * 8px) calc(var(--k) * 16px)}
.o-quote{width:100%;height:100%;background:#FFFBF2;border-left:calc(var(--k) * 5px) solid #E8943A;border-radius:0 calc(var(--k) * 8px) calc(var(--k) * 8px) 0;padding:calc(var(--k) * 12px) calc(var(--k) * 18px);overflow:hidden;font-size:calc(var(--k) * 16px);line-height:1.5}
.o-quote b{display:block;font-size:calc(var(--k) * 11px);text-transform:uppercase;letter-spacing:.06em;color:#B86A14;margin-bottom:4px}
.o-link{display:flex;align-items:center;gap:calc(var(--k) * 10px);padding:0 calc(var(--k) * 14px);border:1.5px dashed var(--accent);border-radius:calc(var(--k) * 10px);background:#F6F8FF;color:var(--accent);font-weight:700;font-size:calc(var(--k) * 16px);height:100%;overflow:hidden}
.o-link small{display:block;font-weight:400;color:var(--muted);font-size:calc(var(--k) * 11px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.o-link .i{flex:none;width:calc(var(--k) * 24px);height:calc(var(--k) * 24px)}
.o-ix{width:100%;height:100%;border:1px solid #CFE9E3;border-radius:calc(var(--k) * 10px);background:#fff;overflow:hidden;position:relative;display:flex;flex-direction:column}
.o-ix__bar{display:flex;align-items:center;gap:6px;padding:calc(var(--k) * 6px) calc(var(--k) * 10px);background:#E9F7F4;color:#10625A;font-size:calc(var(--k) * 12px);font-weight:700;flex:none}
.o-ix__stage{position:relative;flex:1;min-height:0;display:flex;align-items:center;justify-content:center;overflow:hidden}
.o-ix__canvas{position:relative;width:100%;aspect-ratio:16/9;max-height:100%;--k:.4}
.o-ix__canvas .obj{cursor:default}
.o-ix.is-play .obj.is-drag{cursor:grab;touch-action:none}
.o-ix.is-play .obj.is-drag:active{cursor:grabbing}
.o-ix.is-play .obj.is-check{cursor:pointer}
.verdict-pop{position:absolute;z-index:999;transform:translate(-50%,-100%);background:#1F2433;color:#fff;border-radius:8px;padding:6px 12px;font-size:13px;font-weight:700;white-space:nowrap;pointer-events:none}
.verdict-pop.is-ok{background:var(--ok)}
.verdict-pop.is-bad{background:var(--bad)}

/* ---------- правая панель ---------- */
.sc-right{background:#fff;border-left:1px solid var(--line);overflow:auto;min-height:0}
.rp{padding:14px 16px;border-bottom:1px solid var(--line);display:grid;gap:10px}
.rp:last-child{border-bottom:0}
.rp__title{display:flex;align-items:center;gap:8px;font-weight:700;font-size:13px}
.rp__title .i{color:var(--text-2)}
.rp__title .link{margin-left:auto;font-size:12px;font-weight:400}
.rp__sub{font-size:12px;font-weight:700;color:var(--text-2);display:flex;align-items:center;gap:6px}
.req{list-style:none;margin:0;padding:0;display:grid;gap:9px;font-size:12px}
.req li{display:grid;grid-template-columns:16px 1fr;gap:8px;line-height:1.35}
.req li .i{margin-top:1px;color:#C9CEDA}
.req li.is-done{color:var(--muted)}
.req li.is-done span{text-decoration:line-through}
.req li.is-done .i{color:var(--hot)}
.req li button{border:0;background:none;padding:0;text-align:left;color:var(--accent);font-size:12px;text-decoration:underline;text-underline-offset:2px}
.fmt{display:flex;flex-wrap:wrap;gap:4px}
.fmt button{width:32px;height:32px;border:1px solid var(--line-2);border-radius:6px;background:#fff;display:grid;place-items:center;padding:0;color:var(--text-2)}
.fmt button:hover{border-color:var(--accent);color:var(--accent)}
.fmt button.is-on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.swatches{display:flex;flex-wrap:wrap;gap:6px}
.sw{width:22px;height:22px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1px var(--line-2);padding:0;position:relative}
.sw.is-on{box-shadow:0 0 0 2px var(--accent)}
.sw--none{background:linear-gradient(135deg,#fff 45%,#E0483E 45%,#E0483E 55%,#fff 55%)}
.prow{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px}
.prow .input{width:auto}
.prow .uis{width:120px}
.axis-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.axis-grid .field{min-width:0;gap:5px}
.axis-grid .input{width:100%;min-width:0;padding-left:8px;padding-right:6px}
.rp .btn--block{width:100%}
.rp .field__label{font-size:12px}
.mat-rows{display:grid;gap:6px}
.mat-row{display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px;align-items:center;padding:7px 8px;border:1px solid var(--line);border-radius:6px;font-size:12px;background:#fff;text-align:left;width:100%}
.mat-row:hover{border-color:var(--accent-line)}
.mat-row .i{color:var(--accent)}
.mat-row small{display:block;color:var(--muted)}
.links-list{display:grid;gap:6px}
.links-list div{display:flex;align-items:center;gap:6px;font-size:12px;background:#F4F5F9;border-radius:6px;padding:5px 8px}
.links-list button{margin-left:auto;border:0;background:none;color:var(--muted);padding:0;display:grid}

/* ---------- выбор материала ---------- */
.drawer-back{position:fixed;inset:0;background:rgba(20,26,45,.38);z-index:80;display:none}
.drawer-back.is-open{display:block}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(1080px,94vw);background:#fff;z-index:81;display:none;flex-direction:column;box-shadow:-12px 0 34px rgba(20,26,45,.2)}
.drawer.is-open{display:flex}
.drawer__head{display:flex;align-items:center;gap:14px;padding:16px 22px;border-bottom:1px solid var(--line)}
.drawer__icon{width:44px;height:44px;border-radius:50%;background:#EEF0F5;display:grid;place-items:center;color:var(--text-2);flex:none}
.drawer__title{font-size:18px;font-weight:700;white-space:nowrap}
.drawer__search{flex:1;max-width:460px;position:relative}
.drawer__search .i{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--text-2)}
.drawer__search input{width:100%;height:40px;border:1px solid var(--line-2);border-radius:20px;padding:0 42px 0 16px;outline:none}
.drawer__search input:focus{border-color:var(--accent)}
.drawer__close{margin-left:auto}
.drawer__tabs{display:flex;align-items:center;gap:4px;padding:0 22px;border-bottom:1px solid var(--line)}
.drawer__tabs button{height:44px;border:0;background:none;padding:0 12px;font-weight:700;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.drawer__tabs button.is-active{color:var(--text);border-bottom-color:var(--hot)}
.drawer__tabs .drawer__create{margin-left:auto;color:var(--text);font-weight:400;display:inline-flex;align-items:center;gap:6px}
.drawer__body{flex:1;overflow:auto;padding:14px 22px 22px;background:#F2F3F6}
.drawer__count{font-size:12px;color:var(--muted);margin-bottom:12px}
.drawer__foot{display:flex;align-items:center;justify-content:flex-end;gap:16px;padding:12px 22px;border-top:1px solid var(--line);background:#fff}
.drawer__foot .muted{margin-right:auto;font-size:13px}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.pcard{position:relative;background:#fff;border:1px solid var(--line);border-radius:4px;display:flex;flex-direction:column;cursor:pointer;min-width:0}
.pcard:hover{border-color:var(--line-2);box-shadow:var(--shadow)}
.pcard.is-sel{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.pcard__top{display:flex;align-items:center;justify-content:space-between;padding:8px 10px 8px 12px;min-height:38px}
.pcard__sel{width:22px;height:22px;border-radius:50%;border:1.5px solid #B9BFCD;background:#fff;display:grid;place-items:center;color:transparent;flex:none}
.pcard.is-sel .pcard__sel{background:var(--accent);border-color:var(--accent);color:#fff}
.pcard__cover{aspect-ratio:16/9;background:var(--tint,#E3E6ED);overflow:hidden;display:grid;place-items:center;color:#8A91A4}
.pcard__cover img{width:100%;height:100%;object-fit:cover}
.pcard__cover--ph{background:linear-gradient(180deg,#E6E9EF,#D6DAE3)}
.pcard__body{padding:10px 12px 12px;display:flex;flex-direction:column;gap:4px;flex:1}
.pcard__kind{font-size:12px;color:var(--muted)}
.pcard__title{font-size:15px;font-weight:700;line-height:1.3}
.pcard__author{font-size:12px;color:var(--text-2);margin-top:auto;padding-top:8px}
.pcard__foot{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.pcard__foot span{display:inline-flex;align-items:center;gap:4px}
.upload-zone{border:2px dashed var(--accent-line);border-radius:var(--r-l);background:#fff;padding:26px;text-align:center;display:grid;gap:8px;justify-items:center;margin-bottom:16px}
.upload-zone.is-over{border-color:var(--accent);background:var(--accent-soft)}
.upload-zone__rules{font-size:12px;color:var(--muted)}
.upload-zone__title{font-weight:700}
.book-pick{display:grid;grid-template-columns:320px minmax(0,1fr);gap:14px;align-items:start}
.book-toc{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:12px;max-height:calc(100vh - 260px);overflow:auto}
.book-toc h3{font-size:14px;margin-bottom:8px}
.book-toc__ch{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--text-2);padding:10px 6px 4px}
.book-toc__p{display:block;width:100%;text-align:left;border:0;background:none;padding:7px 8px 7px 14px;border-left:3px solid transparent;font-size:13px;color:var(--text-2);border-radius:0 6px 6px 0}
.book-toc__p:hover{background:#F4F5F9}
.book-toc__p.is-sel{border-left-color:var(--hot);background:#FFF5EF;color:var(--text);font-weight:700}
.book-view{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:22px 30px 26px}
.book-view__meta{font-size:12px;color:var(--muted)}
.book-view__meta b{display:block;color:var(--text);font-size:13px}
.book-view__num{text-align:center;font-size:22px;font-weight:700;margin-top:18px}
.book-view__title{text-align:center;font-size:20px;margin-top:4px}
.book-view__audio{display:flex;align-items:center;gap:8px;justify-content:center;margin:14px auto;border:1px solid var(--accent-line);border-radius:18px;padding:5px 14px;width:max-content;font-size:12px;color:var(--accent)}
.book-view__text{font-size:14px;line-height:1.65;color:var(--text-2);display:grid;gap:10px;margin-top:10px}
.pres-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.pres-slide{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;display:grid}
.pres-slide__img{aspect-ratio:16/9;border-bottom:1px solid var(--line)}
.pres-slide__img img{width:100%;height:100%;object-fit:cover}
.pres-slide__body{padding:10px;display:grid;gap:8px;font-size:12px}
.pres-slide__body label{display:flex;align-items:center;gap:6px}
.pres-slide__body select{flex:1;height:30px;border:1px solid var(--line-2);border-radius:6px;padding:0 6px;font-size:12px;background:#fff}
.fraglist{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:6px 14px;margin-top:14px}
.fraglist h3{font-size:14px;padding:10px 0 4px}
.fraglist .check{padding:6px 0;border-bottom:1px dashed var(--line)}
.fraglist .check:last-child{border-bottom:0}
.ex-list{display:grid;gap:8px;margin-top:14px}
.ex-item{display:grid;grid-template-columns:22px minmax(0,1fr) auto;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px 12px;cursor:pointer}
.ex-item.is-sel{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}
.ex-item .muted{font-size:12px}

/* ---------- конструктор интерактива ---------- */
.ix{position:fixed;inset:0;z-index:70;background:#EDEFF3;display:none;flex-direction:column}
.ix.is-open{display:flex}
.ix-head{height:52px;background:#fff;border-bottom:1px solid var(--line);display:grid;grid-template-columns:260px 1fr 260px;align-items:center;padding:0 16px;flex:none}
.ix-head__title{text-align:center;font-weight:700;font-size:14px}
.ix-tools{height:56px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:stretch;padding:0 12px;gap:8px;flex:none;position:relative;z-index:5}
.ix-tools__left{display:flex;align-items:center;gap:6px;width:300px}
.ix-tools__main{flex:1;display:flex;justify-content:center}
.ix-tools__right{display:flex;width:300px;justify-content:flex-end}
.ix-body{flex:1;display:grid;grid-template-columns:230px minmax(0,1fr) 290px;min-height:0}
.ix-body.no-left{grid-template-columns:0 minmax(0,1fr) 290px}
.ix-body.no-right{grid-template-columns:230px minmax(0,1fr) 0}
.ix-body.no-left.no-right{grid-template-columns:0 minmax(0,1fr) 0}
.ix-list{background:#fff;border-right:1px solid var(--line);overflow:auto;min-width:0}
.ix-list h3{font-size:13px;padding:12px 14px;border-bottom:1px solid var(--line)}
.ix-item{display:flex;align-items:center;gap:6px;padding:9px 12px 9px 14px;font-size:13px;border-bottom:1px solid #F0F1F5;cursor:pointer}
.ix-item:hover{background:#F6F7FA}
.ix-item.is-sel{background:#FFF5EF;box-shadow:inset 3px 0 0 var(--hot)}
.ix-item span{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ix-item button{border:0;background:none;padding:2px;color:var(--muted);display:grid;border-radius:4px}
.ix-item button:hover{color:var(--accent)}
.ix-item button.is-on{color:var(--text)}
.ix-main{min-width:0;display:flex;flex-direction:column}
.ix-main__label{font-size:12px;color:var(--text-2);padding:10px 20px 6px}
.ix-main__scroll{flex:1;overflow:auto;display:flex;justify-content:center;align-items:flex-start;padding:4px 24px 24px}
.ix-links{position:absolute;inset:0;pointer-events:none;z-index:950}
.ix-links line{stroke:var(--accent);stroke-width:2;stroke-dasharray:6 5}
.ix-links circle{fill:var(--accent)}
.ix-links .is-snap line{stroke:#1E9E8A}
.ix-props{background:#fff;border-left:1px solid var(--line);overflow:auto;min-width:0}
.ix-props .rp{padding:12px 14px}
.ix-props .check{min-height:26px;font-size:13px}
.ix-linking{background:#FFF5EF;border:1px solid #F7C9AE;color:#9A4B17;font-size:12px;border-radius:6px;padding:8px 10px}
.ix-foot{height:28px;background:#7E8AA3;display:flex;align-items:center;justify-content:space-between;padding:0 40px;flex:none}
.ix-foot button{border:0;background:rgba(255,255,255,.15);color:#fff;border-radius:4px;display:grid;place-items:center;width:28px;height:20px;padding:0}
.ix-foot button:hover{background:rgba(255,255,255,.3)}

/* ---------- просмотр урока ---------- */
.pv{position:fixed;inset:0;z-index:75;background:#161B2C;display:none;flex-direction:column;color:#fff}
.pv.is-open{display:flex}
.pv-head{height:56px;display:flex;align-items:center;gap:14px;padding:0 20px;flex:none}
.pv-head__title{font-weight:700}
.pv-head__frag{color:rgba(255,255,255,.7);font-size:13px}
.pv-head__end{margin-left:auto;display:flex;align-items:center;gap:10px}
.pv-seg{display:flex;background:rgba(255,255,255,.1);border-radius:18px;padding:3px}
.pv-seg button{border:0;background:none;color:rgba(255,255,255,.8);height:30px;padding:0 12px;border-radius:15px;display:inline-flex;align-items:center;gap:6px;font-size:13px}
.pv-seg button.is-active{background:#fff;color:var(--text)}
.pv-stage{flex:1;display:flex;align-items:center;justify-content:center;padding:8px 20px;min-height:0}
.pv .slide{width:min(100%,calc((100vh - 140px) * 16 / 9));box-shadow:0 12px 44px rgba(0,0,0,.45);color:var(--text)}
.pv-foot{height:64px;display:flex;align-items:center;justify-content:center;gap:14px;flex:none}
.pv-foot .dock__btn{width:40px;height:40px}
.pv-foot__label{min-width:180px;text-align:center;font-size:13px;color:rgba(255,255,255,.8)}
.pv .btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}

@media (max-width:1023px){
  body.is-editor{overflow:auto}
  .edh{grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:0 12px}
  .edh__center{display:none}
  .edh__right .user__name{display:none}
  .sc{display:none}
  .sc-narrow{display:block}
}