/* Admin dashboard layout */
body.admin{background:#f8fafc}
#dashView{display:grid;grid-template-columns:250px 1fr;min-height:100vh}
#dashView[hidden]{display:none}
.side{background:var(--ink);color:#c4cce0;position:sticky;top:0;height:100vh;overflow-y:auto;padding:16px 12px 30px}
.side-brand{display:flex;gap:10px;align-items:center;text-decoration:none;padding:4px 8px 14px;border-bottom:1px solid #312e81;margin-bottom:8px}
.side-brand .logo{background:#1e1b4b}
.side-brand b{color:#fff;font-family:"Plus Jakarta Sans",sans-serif;font-size:17px;display:block}
.side-brand small{color:#8f9bb8;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.side-h{font-size:10.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:#6f7ea3;padding:14px 10px 6px}
.side nav button{display:flex;align-items:center;gap:10px;width:100%;background:none;border:0;color:#c9d1e6;text-align:left;padding:9px 10px;border-radius:10px;font-weight:600;font-size:14px}
.side nav button:hover{background:#312e81}
.side nav button.on{background:var(--saffron);color:#fff}
.side .badge{margin-left:auto;font-style:normal}
.main-col{min-width:0}
.topbar{position:sticky;top:0;z-index:15;background:rgba(246,244,238,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:14px;padding:12px 26px}
.topbar h1{font-size:24px;flex:1}
.top-actions{display:flex;gap:8px;align-items:center}
.live{font-size:12px;color:var(--green);font-weight:700}
.panes{padding:22px 26px 80px;max-width:1300px}
.topbar .burger{display:none}
@media (max-width:900px){
  #dashView{grid-template-columns:1fr}
  .side{position:fixed;left:0;top:0;bottom:0;width:260px;z-index:60;transform:translateX(-100%);transition:transform .2s}
  .side.open{transform:none;box-shadow:0 0 0 100vmax rgba(10,14,28,.45)}
  .topbar .burger{display:flex}
  .topbar{padding:10px 14px}
  .topbar h1{font-size:19px}
  .panes{padding:16px 14px 80px}
  #alertBtn{display:none}
}
.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}
.panel h3{font-size:19px;margin-bottom:10px}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.panel-head h3{margin:0}
.g2{display:grid;grid-template-columns:1.4fr 1fr;gap:16px}
.g2e{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:900px){.g2,.g2e{grid-template-columns:1fr}}
.stack{display:grid;gap:16px}
.kpi small{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.bars{display:flex;align-items:flex-end;gap:6px;height:120px;padding-top:10px}
.bars div{flex:1;background:var(--saffron);border-radius:6px 6px 0 0;min-height:3px;position:relative}
.bars div span{position:absolute;bottom:-20px;left:50%;transform:translateX(-50%);font-size:10.5px;color:var(--muted);white-space:nowrap}
.bars div b{position:absolute;top:-18px;left:50%;transform:translateX(-50%);font-size:11px;color:var(--ink2)}
.bars-wrap{padding-bottom:22px}
.pill-btns{display:flex;gap:6px;flex-wrap:wrap}
.status-pill{font-size:11.5px;font-weight:800;padding:3px 10px;border-radius:99px;white-space:nowrap}
.sp-live{background:#e3f5ec;color:var(--green)}
.sp-up{background:#f1f5f9;color:var(--ink2)}
.sp-done{background:#f1f5f9;color:var(--muted)}
.sp-draft{background:#fff6e0;color:#9a6b00}
.heat{border-collapse:separate;border-spacing:3px}
.heat td,.heat th{padding:0;border:0}
.heat .cell{width:22px;height:22px;border-radius:5px;display:inline-block}
.heat .c1{background:#1f9d61}.heat .c2{background:#57c08a}.heat .c3{background:#b5e3c9}
.heat .w1{background:#d64545}.heat .w2{background:#ef8f8f}.heat .w3{background:#f7c9c9}
.heat .sk{background:#e5e7ee}
.heat th{font-size:10px;color:var(--muted);font-weight:700}
.heat td.nm{font-weight:700;font-size:13px;padding-right:10px;white-space:nowrap}
.legend-row{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin:8px 0}
.legend-row i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:5px;vertical-align:-2px}
.kanban{display:grid;grid-template-columns:repeat(5,minmax(200px,1fr));gap:12px;overflow-x:auto;padding-bottom:8px}
.kcol{background:#f1f5f9;border-radius:14px;padding:10px;min-height:120px}
.kcol h4{font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink2);margin:2px 4px 10px;display:flex;justify-content:space-between}
.lead{background:#fff;border-radius:12px;padding:12px;margin-bottom:8px;border:1px solid var(--line);cursor:pointer}
.lead b{display:block;font-size:14.5px}
.lead small{color:var(--muted);font-size:12px}
.lead .fu{font-size:11.5px;font-weight:700;color:var(--saffron-d)}
.lead .fu.late{color:var(--red)}
.doubt{display:grid;gap:8px}
.doubt img{max-width:260px;border-radius:10px;border:1px solid var(--line)}
.reply-box{background:var(--paper);border-left:4px solid var(--green);padding:10px 12px;border-radius:8px}
.marks-in{width:80px;padding:7px 10px}
.small{font-size:13px}
.right{text-align:right}
.nowrap{white-space:nowrap}

.qa-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px}
.qa{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;background:#fff;border:2px solid var(--line);border-radius:14px;padding:12px 12px 10px 48px;position:relative;min-height:62px;transition:all .12s}
.qa:active{transform:scale(.97)}
.qa .qa-tick{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;border:2px solid var(--gray);display:grid;place-items:center;font-weight:800;color:#fff}
.qa .qa-name{font-weight:700;font-size:14.5px;line-height:1.25}
.qa small{font-size:11px;color:var(--muted);font-weight:600}
.qa.P{border-color:#9fd8bb;background:#eefaf3}.qa.P .qa-tick{background:var(--green);border-color:var(--green)}.qa.P small{color:var(--green)}
.qa.A{border-color:#f3b4b4;background:#fdf1f1}.qa.A .qa-tick{background:var(--red);border-color:var(--red)}.qa.A small{color:var(--red)}
.quick-att .tab{padding:6px 12px;font-size:13px}
table.reg th,table.reg td{padding:5px 4px;text-align:center;font-size:12px}
table.reg td:first-child,table.reg th:first-child{text-align:left}
.rc.P{background:#e3f5ec;color:var(--green);font-weight:800}.rc.A{background:#fdecec;color:var(--red);font-weight:800}.rc.L{background:#fff6e0}

.card.soft{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-top:12px}
.steps-note{margin:-2px 0 6px}
.fmt{background:var(--paper);border-radius:10px;padding:12px;font-size:12.5px;white-space:pre-wrap;overflow:auto;font-family:ui-monospace,Menlo,Consolas,monospace;line-height:1.5}
.rank{font-family:"Plus Jakarta Sans",sans-serif;font-weight:800}
.modal .kpis{grid-template-columns:repeat(4,1fr)}
@media (max-width:700px){.modal .kpis{grid-template-columns:1fr 1fr}}
.modal.wide{max-width:900px}
.add-grid{grid-template-columns:1.6fr .9fr 1.1fr 1.1fr 1.1fr 1.1fr auto}
@media (max-width:1100px){.add-grid{grid-template-columns:1fr 1fr}}
.panes > section{padding:0}
.stack{align-content:start}
@media (max-width:600px){.qa-grid{grid-template-columns:1fr 1fr}.qa{padding-left:42px}.qa .qa-tick{left:9px}}

/* ===== Video lessons (teacher) ===== */
.lsn-intro{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:16px}
.lsn-intro p{margin:4px 0 0;max-width:640px}
.lsn-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.lsn-card{padding:0;overflow:hidden}
.lsn-thumb{position:relative;aspect-ratio:16/8;background:linear-gradient(135deg,#1e1b4b,#4338ca);display:grid;place-items:center;font-size:36px}
.lsn-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.lsn-thumb em{position:absolute;right:10px;bottom:10px;font-style:normal;font-size:12px;font-weight:700;background:rgba(15,23,42,.85);color:#fff;padding:3px 10px;border-radius:99px}
.lsn-body{padding:14px 16px 16px}.lsn-body h4{margin:8px 0 2px;font-size:16px}
.lsn-stats{display:flex;gap:14px;font-size:13px;color:var(--muted);margin:10px 0}.lsn-stats b{color:var(--ink)}.lsn-stats .warn b,.lsn-stats .warn{color:var(--red)}
.lsn-acts{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.row-input{display:flex;gap:8px}.row-input input{flex:1}
.le-player{margin:10px 0 4px}.le-video{position:relative;aspect-ratio:16/9;background:#000;border-radius:12px;overflow:hidden;max-height:340px;margin:0 auto}
.le-video>*,.le-video iframe,.le-video video{position:absolute;inset:0;width:100%;height:100%;border:0}
.le-tools{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:8px;flex-wrap:wrap}
.le-head{display:flex;justify-content:space-between;align-items:center;margin:18px 0 8px}.le-head h4{margin:0}
.le-cp{border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-bottom:10px;background:#fafbff}
.le-cp-top{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap}.le-cp-top label{margin-top:0}
.le-cp-top .grow{flex:1;min-width:180px}
.le-n{width:28px;height:28px;border-radius:50%;background:var(--saffron);color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px;margin-bottom:6px}
.le-qrow{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:10px;font-size:14px}.le-qrow .grow{flex:1}
.le-qrow b.warn{color:var(--red)}
.le-extra textarea{margin-top:10px;font-family:inherit}
.le-bank{display:flex;gap:10px;align-items:flex-end;flex-wrap:wrap;margin-top:10px}.le-bank>div{flex:1;min-width:150px}
.le-qlist{margin:10px 0 0 18px;font-size:14px;max-height:260px;overflow:auto}.le-qlist li{margin:4px 0}
.st{font-size:12px;font-weight:700;padding:3px 10px;border-radius:99px;background:#f1f5f9;color:var(--muted);white-space:nowrap}
.st.ok{background:#dcfce7;color:#166534}.st.bad{background:#fee2e2;color:#991b1b}.st.mid{background:#fef3c7;color:#92400e}
td.c-ok{color:#166534;font-weight:600}td.c-bad{color:#b91c1c}
@media (max-width:700px){.lsn-intro{flex-direction:column;align-items:flex-start}}
.tbl{width:100%;border-collapse:collapse;font-size:14px}.tbl th,.tbl td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}.tbl th{font-size:12.5px;color:var(--muted);font-weight:700}
.cp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px}
.cp{margin:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.cp.flag{border:2px solid var(--red)}
.cp img,.cp-off{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;background:#0f172a}
.cp-off{display:grid;place-items:center;color:#fecaca;font-weight:700;font-size:13px}
.cp figcaption{padding:6px 8px;font-size:12px;display:flex;flex-wrap:wrap;gap:4px;align-items:center}
.warn-panel{background:#fffbeb;border-color:#fcd34d;margin-bottom:16px;font-size:14px}
.chip-list{display:flex;flex-wrap:wrap;gap:6px}
.paste-tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:8px 0 2px}
.an-q .q-img,.prev-q .q-img,.detail-q .q-img{max-height:140px}
.q-img{display:block;max-width:100%;max-height:300px;margin:8px 0;border-radius:8px;border:1px solid var(--line);background:#fff}
.lvl-row{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.lvl{font-size:12px;padding:3px 9px;border-radius:99px;background:#eef2ff;color:#3730a3}.lvl b{margin-left:2px}
.lvl.low{background:#fef2f2;color:#991b1b}
.sec-preview{background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font-size:14px;margin:8px 0}
.ser-tag{font-size:11px;font-weight:800;padding:2px 7px;border-radius:6px;background:#f1f5f9;color:#475569;white-space:nowrap}
.ser-jeemain{background:#e0f2fe;color:#075985}.ser-jeeadv{background:#ede9fe;color:#5b21b6}.ser-neet{background:#dcfce7;color:#166534}
.ser-cetpcm,.ser-cetpcb{background:#ffedd5;color:#9a3412}
#tSer .tab small{opacity:.7;margin-left:3px}
.series-tbl td.sc{text-align:center;font-weight:700;font-size:13px}.series-tbl .hi{background:#dcfce7}.series-tbl .mid{background:#fef9c3}.series-tbl .lo{background:#fee2e2}.series-tbl .na{color:#94a3b8}
.series-tbl .up{color:var(--green);font-weight:700}.series-tbl .down{color:var(--red);font-weight:700}
.lv-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.lv-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.lv-card.stale{opacity:.6}
.lv-vid{aspect-ratio:4/3;background:#0f172a;display:grid;place-items:center;color:#cbd5e1;font-size:13px;text-align:center;padding:0}
.lv-vid video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}
.lv-ph{padding:12px}
.lv-info{padding:10px 12px 4px;display:flex;flex-direction:column;gap:2px}
.lv-acts{display:flex;gap:6px;align-items:center;padding:8px 12px 12px;flex-wrap:wrap}
.quick{cursor:pointer;border:1px solid var(--line);background:#fff}