/* Widoczni · aplikacja kursanta */

body.app{background:var(--bg-2);overflow-x:hidden}
.shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
@media (max-width:960px){.shell{grid-template-columns:1fr}}

/* sidebar */
.sb{background:var(--bg-2);border-right:1px solid var(--line);padding:18px 14px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}
@media (max-width:960px){
  .sb{position:fixed;left:0;top:0;bottom:0;width:272px;z-index:60;transform:translateX(-100%);transition:transform .25s ease;background:#fff;box-shadow:var(--sh-3)}
  body.sb-open .sb{transform:none}
  body.sb-open .scrim{opacity:1;pointer-events:auto}
}
.scrim{position:fixed;inset:0;background:rgba(12,12,13,.3);opacity:0;pointer-events:none;transition:opacity .2s;z-index:55}
.sb .brand{padding:6px 10px 18px}
.sb-label{font-size:12px;color:var(--text-3);padding:16px 10px 6px;font-weight:500}
.sb-link{display:flex;align-items:center;gap:10px;height:36px;padding:0 10px;border-radius:8px;font-size:14.5px;color:var(--text-2);transition:background .12s, color .12s}
.sb-link svg{width:17px;height:17px;flex:none}
.sb-link:hover{background:var(--bg-3);color:var(--text)}
.sb-link.on{background:#fff;color:var(--text);font-weight:500;box-shadow:var(--sh-1), 0 0 0 1px var(--line)}
.sb-link .cnt{margin-left:auto;font-size:12px;color:var(--text-3)}
.sb-course{margin-top:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px}
.sb-course small{font-size:12px;color:var(--text-3)}
.sb-course b{display:block;font-size:14px;font-weight:600;margin:2px 0 10px;letter-spacing:-.01em}
.bar{height:6px;border-radius:3px;background:var(--bg-3);overflow:hidden}
.bar i{display:block;height:100%;background:var(--accent);border-radius:3px;transition:width .4s ease}
.sb-course .row{display:flex;justify-content:space-between;font-size:12px;color:var(--text-3);margin-top:8px}

/* topbar */
.main{min-width:0;display:flex;flex-direction:column}
.tb{height:60px;display:flex;align-items:center;gap:12px;padding:0 28px;border-bottom:1px solid var(--line);background:rgba(246,246,244,.85);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);position:sticky;top:0;z-index:30}
@media (max-width:640px){.tb{padding:0 14px}}
.tb-menu{display:none;width:36px;height:36px;border-radius:8px;align-items:center;justify-content:center}
.tb-menu:hover{background:var(--bg-3)}
@media (max-width:960px){.tb-menu{display:inline-flex}}
.tb-search{flex:1;max-width:380px;height:36px;display:flex;align-items:center;gap:8px;padding:0 12px;border-radius:8px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--text-3)}
.tb-search input{border:0;outline:0;background:transparent;flex:1;min-width:0;color:var(--text)}
.tb-search kbd{font-family:var(--mono);font-size:11px;border:1px solid var(--line);border-radius:4px;padding:1px 5px;color:var(--text-3)}
@media (max-width:560px){.tb-search kbd{display:none}}
.tb-right{margin-left:auto;display:flex;align-items:center;gap:6px}
.icon-btn{width:36px;height:36px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);position:relative}
.icon-btn:hover{background:var(--bg-3);color:var(--text)}
.icon-btn svg{width:18px;height:18px}
.icon-btn .dot{position:absolute;top:8px;right:9px;width:7px;height:7px;border-radius:50%;background:var(--accent);border:2px solid var(--bg-2)}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--text);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}

/* widoki */
.view{display:none;padding:32px 28px 64px;max-width:1240px;width:100%}
.view.on{display:block;animation:vin .3s ease}
@keyframes vin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (max-width:640px){.view{padding:22px 14px 56px}}
.v-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.v-head h1{font-size:26px;font-weight:600;letter-spacing:-.035em;line-height:1.2}
.v-head p{color:var(--text-2);font-size:15px;margin-top:4px}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.card-pad{padding:22px}
.card-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:10px}
.card-h h2{font-size:15.5px;font-weight:600;letter-spacing:-.015em}
.card-h a,.card-h button{font-size:13.5px;color:var(--text-2)}
.card-h a:hover,.card-h button:hover{color:var(--text)}

/* pulpit */
.dash{display:grid;grid-template-columns:1fr 340px;gap:20px}
@media (max-width:1100px){.dash{grid-template-columns:1fr}}
.dash-col{display:grid;gap:20px;align-content:start}
.resume{display:grid;grid-template-columns:280px 1fr;overflow:hidden}
@media (max-width:700px){.resume{grid-template-columns:1fr}}
.thumb{background:var(--dark);position:relative;min-height:180px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.thumb::before{content:"";position:absolute;width:240px;height:240px;border-radius:50%;background:var(--accent);filter:blur(80px);opacity:.35;right:-80px;bottom:-120px}
.thumb .play{width:52px;height:52px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;position:relative;transition:transform .15s}
.thumb .play:hover{transform:scale(1.06)}
.thumb .play svg{width:18px;height:18px;margin-left:3px}
.thumb .len{position:absolute;right:12px;bottom:12px;font-family:var(--mono);font-size:11.5px;color:#fff;background:rgba(255,255,255,.12);padding:3px 7px;border-radius:5px}
.thumb .modno{position:absolute;left:14px;top:12px;font-family:var(--mono);font-size:11.5px;color:#9a9aa0}
.resume-body{padding:24px;display:flex;flex-direction:column}
.resume-body small{font-size:13px;color:var(--text-3)}
.resume-body h3{font-size:21px;font-weight:600;letter-spacing:-.03em;line-height:1.25;margin:6px 0 8px}
.resume-body p{font-size:14.5px;color:var(--text-2)}
.resume-body .act{margin-top:auto;padding-top:20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.resume-body .act .bar{flex:1;min-width:120px}

.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:700px){.kpis{grid-template-columns:1fr}}
.kpi{padding:18px 20px}
.kpi span{font-size:13.5px;color:var(--text-2)}
.kpi b{display:block;font-size:28px;font-weight:600;letter-spacing:-.04em;margin-top:6px;line-height:1.1}
.kpi small{font-size:12.5px;color:var(--text-3)}

.mods{display:grid}
.mod-row{display:grid;grid-template-columns:40px 1fr 140px 44px;gap:14px;align-items:center;padding:12px 4px;border-top:1px solid var(--line);font-size:14.5px;border-radius:8px}
.mod-row:first-child{border-top:0}
.mod-row:hover{background:var(--bg-2)}
.mod-row .no{font-family:var(--mono);font-size:12.5px;color:var(--text-3);padding-left:8px}
.mod-row .pc{font-size:12.5px;color:var(--text-3);text-align:right;padding-right:8px}
@media (max-width:560px){.mod-row{grid-template-columns:34px 1fr 44px}.mod-row .bar{display:none}}

.ring{display:flex;align-items:center;gap:18px}
.ring svg{width:92px;height:92px;flex:none;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:9}
.ring .bg{stroke:var(--bg-3)}
.ring .fg{stroke:var(--accent);stroke-linecap:round;transition:stroke-dashoffset .6s ease}
.ring b{font-size:26px;font-weight:600;letter-spacing:-.04em;display:block;line-height:1.1}
.ring span{font-size:13.5px;color:var(--text-2)}

.live{background:var(--dark);color:#fff;border:0}
.live small{color:#9a9aa0;font-size:13px}
.live h3{font-size:17px;font-weight:600;letter-spacing:-.02em;margin:6px 0 4px}
.live p{font-size:14px;color:#a3a3a8;margin-bottom:16px}
.live .btn{background:#fff;color:var(--text)}
.live .when{display:flex;align-items:center;gap:8px;font-size:13px;color:#fff;margin-bottom:12px}
.live .when i{width:7px;height:7px;border-radius:50%;background:var(--accent)}

.mini-post{display:flex;gap:10px;padding:12px 0;border-top:1px solid var(--line);font-size:14px}
.mini-post:first-of-type{border-top:0;padding-top:0}
.mini-post p{color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-post b{font-weight:600;color:var(--text)}

/* kurs, odtwarzacz */
.course{display:grid;grid-template-columns:1fr 340px;gap:20px;align-items:start}
@media (max-width:1100px){.course{grid-template-columns:1fr}}
.player{background:var(--dark);border-radius:var(--r-lg);aspect-ratio:16/9;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.player::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:var(--accent);filter:blur(120px);opacity:.22;right:-120px;bottom:-200px}
.player .play{width:68px;height:68px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;position:relative;transition:transform .15s;z-index:1}
.player .play:hover{transform:scale(1.06)}
.player .play svg{width:22px;height:22px;margin-left:3px}
.player .ptop{position:absolute;left:20px;top:16px;right:20px;display:flex;justify-content:space-between;color:#fff;font-size:13.5px;z-index:1}
.player .ptop span{color:#9a9aa0;font-family:var(--mono);font-size:12px}
.player .pctrl{position:absolute;left:20px;right:20px;bottom:16px;display:flex;align-items:center;gap:14px;color:#fff;font-family:var(--mono);font-size:12px;z-index:1}
.player .ptrack{flex:1;height:4px;border-radius:2px;background:rgba(255,255,255,.18);overflow:hidden}
.player .ptrack i{display:block;height:100%;width:0;background:var(--accent)}
.lesson-title{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin:22px 0 4px;flex-wrap:wrap}
.lesson-title small{font-size:13.5px;color:var(--text-3)}
.lesson-title h1{font-size:26px;font-weight:600;letter-spacing:-.035em;line-height:1.2;margin-top:4px}
.btn-done{height:40px;padding:0 16px;border-radius:999px;font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:8px;background:var(--text);color:#fff}
.btn-done svg{width:16px;height:16px}
.btn-done.is{background:#fff;color:var(--ok);box-shadow:inset 0 0 0 1px var(--line-2)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:22px 0 22px;overflow-x:auto}
.tabs button{height:40px;padding:0 12px;font-size:14.5px;color:var(--text-2);border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tabs button:hover{color:var(--text)}
.tabs button.on{color:var(--text);border-color:var(--text);font-weight:500}
.pane{display:none;font-size:15.5px;color:var(--text-2);line-height:1.65}
.pane.on{display:block}
.pane p{margin-bottom:14px;max-width:680px}
.code{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;max-width:720px}
.code-h{display:flex;justify-content:space-between;align-items:center;padding:8px 8px 8px 14px;border-bottom:1px solid var(--line);background:var(--bg-2);font-size:12.5px;color:var(--text-3)}
.code pre{padding:16px;font-family:var(--mono);font-size:13px;line-height:1.65;color:var(--text);white-space:pre-wrap;margin:0}
.copy{height:28px;padding:0 10px;border-radius:6px;font-size:12.5px;background:#fff;border:1px solid var(--line);color:var(--text);display:inline-flex;align-items:center;gap:6px}
.copy:hover{border-color:var(--line-2)}
.copy svg{width:13px;height:13px}
.tasks{display:grid;gap:8px;max-width:680px}
.task{display:flex;gap:12px;align-items:flex-start;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--r);cursor:pointer;color:var(--text);font-size:15px}
.task input{appearance:none;-webkit-appearance:none;width:18px;height:18px;border-radius:5px;border:1.5px solid var(--line-2);flex:none;margin-top:2px;display:grid;place-items:center;cursor:pointer;transition:all .15s}
.task input:checked{background:var(--text);border-color:var(--text)}
.task input:checked::after{content:"";width:4px;height:8px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg) translate(-1px,-1px)}
.task input:checked + span{color:var(--text-3);text-decoration:line-through}
.notes{width:100%;max-width:720px;min-height:180px;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;background:#fff;resize:vertical;outline:none;font-size:15px;line-height:1.6;color:var(--text)}
.notes:focus{border-color:var(--text-3)}
.saved{font-size:12.5px;color:var(--text-3);margin-top:8px;height:18px}
.lesson-nav{display:flex;justify-content:space-between;gap:10px;margin-top:36px;padding-top:22px;border-top:1px solid var(--line);flex-wrap:wrap}
.lesson-nav .btn{max-width:100%}
.lesson-nav .btn span{overflow:hidden;text-overflow:ellipsis}

.toc{position:sticky;top:80px;max-height:calc(100vh - 100px);display:flex;flex-direction:column;overflow:hidden}
@media (max-width:1100px){.toc{position:static;max-height:520px}}
.toc-head{padding:18px 18px 14px;border-bottom:1px solid var(--line)}
.toc-head h2{font-size:15px;font-weight:600}
.toc-head .row{display:flex;justify-content:space-between;font-size:12.5px;color:var(--text-3);margin:4px 0 10px}
.toc-list{overflow-y:auto;padding:8px}
.toc-mod{margin-bottom:4px}
.toc-mod-h{width:100%;display:flex;align-items:center;gap:10px;padding:10px;border-radius:8px;text-align:left;font-size:13.5px;font-weight:600;letter-spacing:-.01em}
.toc-mod-h:hover{background:var(--bg-2)}
.toc-mod-h .no{font-family:var(--mono);font-size:11.5px;color:var(--text-3);font-weight:400;width:22px}
.toc-mod-h .pc{margin-left:auto;font-size:11.5px;color:var(--text-3);font-weight:400}
.toc-mod-h svg{width:14px;height:14px;color:var(--text-3);transition:transform .2s;flex:none}
.toc-mod.open .toc-mod-h svg{transform:rotate(90deg)}
.toc-lessons{display:none;padding:0 0 6px}
.toc-mod.open .toc-lessons{display:block}
.toc-l{width:100%;display:grid;grid-template-columns:16px 1fr auto;gap:10px;align-items:center;padding:8px 10px 8px 42px;border-radius:8px;text-align:left;font-size:13.5px;color:var(--text-2);line-height:1.35}
.toc-l:hover{background:var(--bg-2);color:var(--text)}
.toc-l.on{background:var(--accent-soft);color:var(--text);font-weight:500}
.toc-l .m{font-family:var(--mono);font-size:11px;color:var(--text-3)}
.toc-l .c{width:15px;height:15px;border-radius:50%;border:1.5px solid var(--line-2);position:relative}
.toc-l.done .c{background:var(--text);border-color:var(--text)}
.toc-l.done .c::after{content:"";position:absolute;left:4px;top:1.5px;width:3px;height:6px;border:solid #fff;border-width:0 1.5px 1.5px 0;transform:rotate(45deg)}

/* materiały */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.chip{height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--text-2);transition:all .12s}
.chip:hover{border-color:var(--line-2);color:var(--text)}
.chip.on{background:var(--text);border-color:var(--text);color:#fff}
.mat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
@media (max-width:400px){.mat-grid{grid-template-columns:1fr}}
.mat{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;text-align:left;display:flex;flex-direction:column;gap:10px;transition:border-color .15s, box-shadow .15s;min-height:170px}
.mat:hover{border-color:var(--line-2);box-shadow:var(--sh-2)}
.mat .top{display:flex;justify-content:space-between;align-items:center;width:100%}
.mat .top > span:last-child{font-family:var(--mono);font-size:11.5px;color:var(--text-3)}
.mat h3{font-size:16px;font-weight:600;letter-spacing:-.02em;line-height:1.3}
.mat p{font-size:14px;color:var(--text-2)}
.mat .open{margin-top:auto;font-size:13.5px;font-weight:500;display:flex;align-items:center;gap:6px}
.empty{padding:48px;text-align:center;color:var(--text-3);font-size:15px}

/* modal */
.modal{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(12,12,13,.35);opacity:0;pointer-events:none;transition:opacity .2s}
.modal.on{opacity:1;pointer-events:auto}
.modal-box{background:#fff;border-radius:var(--r-lg);width:100%;max-width:620px;max-height:85vh;overflow:auto;box-shadow:var(--sh-3);transform:translateY(10px) scale(.98);transition:transform .2s}
.modal.on .modal-box{transform:none}
.modal-h{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:22px 22px 0}
.modal-h small{font-size:13px;color:var(--text-3)}
.modal-h h2{font-size:21px;font-weight:600;letter-spacing:-.03em;margin-top:4px;line-height:1.25}
.modal-b{padding:18px 22px 24px}
.modal-b > p{color:var(--text-2);font-size:15px;margin-bottom:16px}

/* społeczność */
.feed{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start}
@media (max-width:1100px){.feed{grid-template-columns:1fr}}
.compose{display:flex;gap:12px;padding:16px}
.compose textarea{flex:1;border:0;outline:0;resize:none;min-height:46px;font-size:15px;line-height:1.5;padding-top:5px;background:transparent}
.compose-f{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;border-top:1px solid var(--line);gap:10px;flex-wrap:wrap}
.compose-f select{height:32px;border:1px solid var(--line);border-radius:8px;padding:0 8px;font-size:13.5px;background:#fff;color:var(--text-2)}
.post{padding:20px}
.post-h{display:flex;gap:12px;align-items:center;margin-bottom:10px}
.post-h b{font-size:14.5px;font-weight:600;display:block;line-height:1.3}
.post-h span{font-size:12.5px;color:var(--text-3)}
.post-h .badge{margin-left:auto}
.post > p{font-size:15px;line-height:1.6;color:var(--text)}
.post-f{display:flex;gap:16px;margin-top:14px;font-size:13.5px;color:var(--text-3)}
.post-f button:hover{color:var(--text)}
.replies{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);display:grid;gap:12px}
.reply{display:flex;gap:10px;font-size:14.5px;line-height:1.55}
.reply b{font-weight:600}
.reply .badge{margin-left:6px;vertical-align:1px}
.reply p{color:var(--text-2)}
.av{width:34px;height:34px;border-radius:50%;background:var(--bg-3);display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;color:var(--text-2);flex:none}
.av.sm{width:28px;height:28px;font-size:11.5px}
.av.me{background:var(--text);color:#fff}
.feed-list{display:grid;gap:14px}

/* ustawienia */
.set-grid{display:grid;gap:20px;max-width:720px}
.set-row{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:16px 0;border-top:1px solid var(--line)}
.set-row:first-of-type{border-top:0;padding-top:0}
.set-row b{font-size:14.5px;font-weight:500;display:block}
.set-row span{font-size:13.5px;color:var(--text-3)}
@media (max-width:560px){.set-row{flex-direction:column;align-items:flex-start}}

.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--text);color:#fff;padding:10px 16px;border-radius:999px;font-size:14px;opacity:0;transition:all .25s;z-index:99;pointer-events:none;display:flex;align-items:center;gap:8px}
.toast.on{opacity:1;transform:translateX(-50%)}
.toast svg{width:15px;height:15px;color:#7ee2a8}

/* tryb podglądu w iframe na stronie głównej */
@media (min-width:961px){body.embed .tb,body.embed .sb{position:static;height:auto}}
body.embed .view{animation:none}