/* ============ portal: sign-in ============ */
.auth{position:relative;min-height:100vh;display:grid;place-items:center;padding:40px 16px 90px;overflow:hidden;isolation:isolate;background:linear-gradient(160deg,#070b22 0%,#0e1440 45%,#0a2a3a 100%)}
.auth canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1}
.aurora{position:absolute;inset:-20%;z-index:-2;filter:blur(70px);opacity:.75}
.aurora i{position:absolute;border-radius:50%;mix-blend-mode:screen;animation:aur 22s ease-in-out infinite alternate}
.aurora i:nth-child(1){width:55vmax;height:55vmax;left:-5%;top:-10%;background:radial-gradient(circle,#3a52d9 0%,transparent 65%)}
.aurora i:nth-child(2){width:50vmax;height:50vmax;right:-10%;top:10%;background:radial-gradient(circle,#0fb5a0 0%,transparent 65%);animation-duration:27s;animation-delay:-8s}
.aurora i:nth-child(3){width:45vmax;height:45vmax;left:25%;bottom:-25%;background:radial-gradient(circle,#b0369b 0%,transparent 65%);animation-duration:31s;animation-delay:-15s}
@keyframes aur{0%{transform:translate(0,0) scale(1)}50%{transform:translate(8vmax,6vmax) scale(1.15)}100%{transform:translate(-6vmax,-4vmax) scale(.92)}}
.authgrid{position:absolute;left:-50%;right:-50%;bottom:-10%;height:55%;z-index:-1;background-image:linear-gradient(rgba(140,170,255,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(140,170,255,.13) 1px,transparent 1px);background-size:56px 56px;transform:perspective(420px) rotateX(62deg);transform-origin:bottom;-webkit-mask-image:linear-gradient(to top,#000 10%,transparent 85%);mask-image:linear-gradient(to top,#000 10%,transparent 85%);animation:gridmove 6s linear infinite}
@keyframes gridmove{to{background-position:0 56px}}
@media (prefers-reduced-motion:reduce){.aurora i,.authgrid{animation:none}}
.orline{display:flex;align-items:center;gap:12px;margin:14px 0 12px;color:var(--muted);font-size:13px}
.orline::before,.orline::after{content:"";flex:1;height:1px;background:var(--line)}
#guestBtn small{font-weight:500;color:var(--muted);margin-left:4px}
.auth .authcard{box-shadow:0 30px 80px rgba(0,0,0,.45),0 0 0 1px rgba(255,255,255,.06)}
.authcard{position:relative;z-index:2;width:min(440px,100%);padding:32px 30px 26px;border-radius:26px;background:color-mix(in srgb,var(--surface) 94%,transparent);backdrop-filter:blur(8px);border:1px solid var(--line);box-shadow:var(--shadow-lg)}
.authcard h1{font:800 28px/1.2 var(--display);margin:18px 0 14px}
.authcard.shake{animation:shake .4s}
@keyframes shake{25%{transform:translateX(-8px)}75%{transform:translateX(8px)}}
.abrand{display:flex;align-items:center;gap:12px}
.abrand img{border-radius:12px}
.abrand b{display:block;font:700 18px/1.2 var(--display)}
.abrand span{font-size:14px;color:var(--muted)}
.seg{position:relative;display:grid;grid-template-columns:1fr 1fr;background:var(--surface2);border:1px solid var(--line);border-radius:14px;padding:4px;margin-bottom:16px}
.seg button{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:8px;height:40px;border:0;background:none;border-radius:10px;font-weight:700;cursor:pointer;color:var(--muted);transition:color .25s}
.seg button .ico{width:17px;height:17px}
.seg button.on{color:#fff}
.seg i{position:absolute;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);border-radius:10px;background:var(--brand);transition:transform .35s var(--ease)}
.seg button.on:nth-child(2)~i{transform:translateX(100%)}
.pfield{display:grid;gap:6px;margin-bottom:14px;font-size:14.5px;font-weight:600;color:var(--ink2)}
.pfield input,.pfield select,.pfield textarea,.astep textarea,.astep input,.toolbar select,.maxrow input{width:100%;min-height:44px;padding:9px 13px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:16px var(--body);transition:border-color .2s,box-shadow .2s}
.pfield textarea,.astep textarea{resize:vertical;line-height:1.5}
.pfield input:focus,.pfield select:focus,.pfield textarea:focus,.astep textarea:focus,.astep input:focus,.maxrow input:focus{outline:none;border-color:var(--c,var(--brand));box-shadow:0 0 0 4px color-mix(in srgb,var(--c,var(--brand)) 16%,transparent)}
.pw{position:relative}.pw input{padding-right:46px}
.eye{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:36px;height:36px;border:0;background:none;display:grid;place-items:center;cursor:pointer;color:var(--muted)}
.eye .ico{width:19px;height:19px}
.btn.wide{width:100%;justify-content:center}
.btn.small{height:36px;padding:0 14px;font-size:14.5px;border-radius:11px}
.btn.small .ico{width:16px;height:16px}
.btn.danger,.linkbtn.danger{--brand:var(--bad)}
.btn.ghost.danger{color:var(--bad)!important;border-color:color-mix(in srgb,var(--bad) 50%,transparent)}
.btn.busy{opacity:.7;pointer-events:none}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.linkbtn{border:0;background:none;color:var(--brand);font-weight:700;cursor:pointer;padding:6px 4px;display:inline-flex;align-items:center;gap:6px}
.linkbtn .ico{width:16px;height:16px}
.linkbtn.center{display:flex;margin:12px auto 0}
.linkbtn.danger{color:var(--bad)}
.center{text-align:center}
.small{font-size:14px}
.pmuted{color:var(--muted)}
.red{color:var(--bad)!important}
.perr{min-height:22px;color:var(--bad);font-size:14.5px;font-weight:600;margin:-4px 0 8px}
.pnote{padding:12px 16px;border-radius:14px;background:color-mix(in srgb,var(--amber) 16%,var(--surface));border:1px solid color-mix(in srgb,var(--amber) 40%,transparent);margin-bottom:16px;font-size:15.5px}
.pnote.bad{background:color-mix(in srgb,var(--bad) 10%,var(--surface));border-color:color-mix(in srgb,var(--bad) 35%,transparent)}
.pnote.soft{background:var(--surface2);border-color:var(--line)}
.democreds{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px;font-size:13.5px;color:var(--muted)}
.democreds button{border:1px dashed var(--line);background:var(--surface2);border-radius:9px;padding:5px 10px;font:600 12.5px var(--mono);cursor:pointer;color:var(--ink2)}
.demobar{position:absolute;z-index:2;bottom:18px;left:50%;transform:translateX(-50%);display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;justify-content:center;padding:10px 18px;border-radius:14px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);font-size:14px;width:max-content;max-width:calc(100% - 32px)}
.sentok{width:64px;height:64px;border-radius:20px;display:grid;place-items:center;margin:14px auto 0;background:color-mix(in srgb,var(--good) 16%,transparent);color:var(--good);animation:pop .5s var(--ease)}
.sentok .ico{width:30px;height:30px}
.meter{height:6px;border-radius:6px;background:var(--surface2);overflow:hidden;margin:-4px 0 12px}
.meter i{display:block;height:100%;width:0;border-radius:6px;transition:width .3s,background .3s;background:var(--bad)}
.meter i.m{background:var(--amber)}.meter i.s{background:var(--good)}

/* ============ header user menu ============ */
.umenu{position:relative}
.ubtn{display:flex;align-items:center;gap:10px;height:44px;padding:0 10px 0 4px;border-radius:14px;border:1px solid var(--line);background:var(--surface);cursor:pointer;text-align:left}
.av{flex:none;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;font:700 13.5px var(--display);color:#fff;background:linear-gradient(135deg,var(--brand),color-mix(in srgb,var(--brand) 55%,var(--amber)))}
.ubtn .av{width:34px;height:34px}
.un b{display:block;font-size:14px;line-height:1.1;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.un small{font:600 11.5px var(--mono);color:var(--muted)}
.udrop{position:absolute;right:0;top:calc(100% + 8px);z-index:60;min-width:240px;padding:8px;border-radius:16px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .2s var(--ease)}
.udrop.on{opacity:1;visibility:visible;transform:none}
.uhead{padding:8px 10px 10px;border-bottom:1px solid var(--line);margin-bottom:6px}
.uhead b{display:block}.uhead span{font-size:13.5px;color:var(--muted)}
.udrop button{display:flex;align-items:center;gap:10px;width:100%;padding:10px;border:0;background:none;border-radius:10px;cursor:pointer;font-weight:600;text-align:left}
.udrop button:hover{background:var(--surface2)}
.udrop .ico{width:17px;height:17px}

/* ============ course tabs ============ */
.ctabs{display:flex;gap:6px;flex-wrap:wrap;margin-top:22px;padding:5px;border-radius:16px;background:color-mix(in srgb,var(--surface) 80%,transparent);border:1px solid var(--line);width:max-content;max-width:100%;backdrop-filter:blur(6px)}
.ctabs a{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border-radius:11px;text-decoration:none;font-weight:700;font-size:15px;color:var(--ink2);transition:background .2s,color .2s}
.ctabs a .ico{width:17px;height:17px}
.ctabs a:hover{background:var(--surface2)}
.ctabs a.on{background:var(--c,var(--brand));color:#fff}
.classwrap{padding-block:34px 70px}
.ploading{display:flex;gap:8px;justify-content:center;padding:60px}
.ploading i{width:12px;height:12px;border-radius:4px;background:var(--brand);animation:egp 1.2s var(--ease) infinite}
.ploading i:nth-child(2){animation-delay:.15s}.ploading i:nth-child(3){animation-delay:.3s}
@media (max-width:640px){.ctabs a span{display:none}.ctabs a{padding:0 12px}}

/* ============ cards, tables ============ */
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:22px 24px;box-shadow:var(--shadow);margin-bottom:20px}
.phd{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:14px;flex-wrap:wrap}
.phd h3{font:700 20px/1.3 var(--display);margin:0}
.phd h2{font:800 24px/1.25 var(--display);margin:4px 0 0}
.pgrid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pgrid2 .pcard{margin:0}
@media (max-width:860px){.pgrid2{grid-template-columns:1fr}}
.pchip{display:inline-flex;align-items:center;gap:5px;height:26px;padding:0 10px;border-radius:999px;font:600 12px/1 var(--mono);background:var(--surface2);border:1px solid var(--line);color:var(--ink2);white-space:nowrap}
.pchip .ico{width:13px;height:13px}
.pchip.active{background:color-mix(in srgb,var(--good) 14%,transparent);border-color:color-mix(in srgb,var(--good) 35%,transparent);color:var(--good)}
.pchip.invited{background:color-mix(in srgb,var(--brand) 12%,transparent);border-color:color-mix(in srgb,var(--brand) 30%,transparent);color:var(--brand)}
.pchip.bad{background:color-mix(in srgb,var(--bad) 12%,transparent);border-color:color-mix(in srgb,var(--bad) 30%,transparent);color:var(--bad)}
.pchip.live{background:var(--bad);border-color:var(--bad);color:#fff;animation:blinkp 1.4s infinite}
@keyframes blinkp{50%{opacity:.6}}
.ptable{overflow:auto;border:1px solid var(--line);border-radius:14px;max-height:620px}
.ptable table{width:100%;border-collapse:collapse;font-size:15px}
.ptable th{position:sticky;top:0;background:var(--surface2);text-align:left;font:700 12.5px var(--mono);letter-spacing:.04em;text-transform:uppercase;color:var(--muted);padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap;z-index:1}
.ptable th small{text-transform:none;font-weight:600}
.ptable td{padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
.ptable tr:last-child td{border-bottom:0}
.ptable tbody tr:hover{background:color-mix(in srgb,var(--brand) 4%,transparent)}
.ptable.small{max-height:260px;margin:12px 0}
.ptable .mono{font-family:var(--mono);font-size:13.5px}
.ptable .more{margin:12px}
.acts{display:flex;gap:6px;justify-content:flex-end;align-items:center;flex-wrap:wrap}
.iconbtn.sm{width:34px;height:34px;border-radius:10px}
.iconbtn.sm .ico{width:16px;height:16px}
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:14px}
.toolbar .field{flex:1;min-width:200px}
.toolbar select{width:auto;min-width:150px}
.pstats{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}
.pstats div{flex:1;min-width:120px;padding:14px 16px;border-radius:16px;background:var(--surface);border:1px solid var(--line)}
.pstats b{display:block;font:800 26px/1.1 var(--display)}
.pstats span{font-size:13.5px;color:var(--muted)}
.pmodal .pstats div{background:var(--surface2)}
.steps3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.steps3>div{position:relative;padding:16px 16px 16px 58px;border-radius:16px;background:var(--surface2);border:1px solid var(--line)}
.steps3 .num{position:absolute;left:16px;top:16px;width:30px;height:30px;border-radius:10px;display:grid;place-items:center;background:var(--brand);color:#fff;font:700 15px var(--display)}
.steps3 b{display:block}.steps3 p{margin:4px 0 10px}
.steps3.compact p{margin-bottom:8px}
@media (max-width:860px){.steps3{grid-template-columns:1fr}}
.pact{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;margin-top:12px}
.pact.left{justify-content:flex-start}
.subtabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:18px;border-bottom:1px solid var(--line);padding-bottom:10px}
.subtabs button{border:1px solid transparent;background:none;padding:8px 14px;border-radius:11px;font-weight:700;cursor:pointer;color:var(--muted)}
.subtabs button:hover{color:var(--ink)}
.subtabs button.on{background:color-mix(in srgb,var(--c,var(--brand)) 12%,transparent);border-color:color-mix(in srgb,var(--c,var(--brand)) 30%,transparent);color:var(--c,var(--brand))}
.pform2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.pform3{display:grid;grid-template-columns:repeat(3,1fr);gap:0 16px;align-items:end}
.pform3 .wide,.pform3 .perr,.pform3 .pact,.pform2 .perr,.pform2 .pact{grid-column:1/-1}
@media (max-width:760px){.pform2,.pform3{grid-template-columns:1fr}}
.chk{display:flex;align-items:flex-start;gap:10px;cursor:pointer;font-size:15.5px}
.chk input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand)}

/* ============ modal ============ */
.pmodal{position:fixed;inset:0;z-index:120;display:grid;place-items:center;padding:16px;background:rgba(8,12,30,.45);backdrop-filter:blur(4px);opacity:0;transition:opacity .25s}
.pmodal.on{opacity:1}
.pbox{width:min(520px,100%);max-height:calc(100vh - 32px);overflow:auto;border-radius:22px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-lg);transform:translateY(14px) scale(.98);transition:transform .3s var(--ease)}
.pbox.wide{width:min(860px,100%)}
.pmodal.on .pbox{transform:none}
.phead{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;background:var(--surface);border-bottom:1px solid var(--line)}
.phead h3{font:700 19px var(--display);margin:0}
.pbody{padding:18px 20px 20px}
.picklist{display:grid;gap:6px;max-height:340px;overflow:auto;margin:6px 0 10px;padding:2px}
.picklist.tall{max-height:56vh;margin-top:12px}
.pick{display:flex;align-items:center;gap:12px;padding:8px 12px;border-radius:12px;border:1px solid var(--line);cursor:pointer;transition:border-color .2s,background .2s}
.pick:hover{border-color:var(--brand)}
.pick.on{background:color-mix(in srgb,var(--brand) 10%,transparent);border-color:var(--brand)}
.pick.off{opacity:.55;cursor:not-allowed}
.pick input{width:18px;height:18px;accent-color:var(--brand)}
.pick b{display:block;font-size:15px}.pick small{font-size:13px;color:var(--muted)}
.pick em{margin-left:auto;font-size:12.5px;color:var(--muted)}
.pick .av{width:32px;height:32px;font-size:12px}
.pbar{height:10px;border-radius:10px;background:var(--surface2);overflow:hidden;margin:16px 0 10px}
.pbar.big{height:14px}
.pbar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--amber));transition:width .4s var(--ease)}
.mailist{display:grid;gap:8px}
.mail{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:10px 12px;border:1px solid var(--line);border-radius:12px}
.mail b{display:block;font-size:15px}.mail span{font-size:13px;color:var(--muted)}

/* ============ student pages ============ */
.pring{--s:132px;position:relative;width:var(--s);height:var(--s);flex:none}
.pring svg{width:100%;height:100%;transform:rotate(-90deg)}
.pring circle{fill:none;stroke:var(--surface2);stroke-width:12}
.pring circle.v{stroke:var(--good);stroke-linecap:round;stroke-dasharray:100;stroke-dashoffset:calc(100 - var(--p));animation:ringin 1.1s var(--ease)}
.pring.bad circle.v{stroke:var(--bad)}
@keyframes ringin{from{stroke-dashoffset:100}}
.pring b{position:absolute;inset:0;display:grid;place-items:center;font:800 26px var(--display)}
.attsum{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.attsum .big{font:800 30px var(--display)}.attsum .big small{font-size:16px;color:var(--muted);font-weight:600}
.okline{color:var(--good);font-weight:700;display:flex;gap:8px;align-items:center;margin:10px 0 0}
.okline .ico{width:18px;height:18px}
.badline{color:var(--bad);font-weight:700;margin:10px 0 0}
.netline{margin-top:14px;padding:10px 14px;border-radius:12px;font-size:14.5px;display:flex;gap:8px;align-items:center}
.netline .ico{width:17px;height:17px;flex:none}
.netline.ok{background:color-mix(in srgb,var(--good) 10%,transparent);color:var(--good)}
.netline.bad{background:color-mix(in srgb,var(--bad) 9%,transparent);color:var(--bad)}
.netline:empty{display:none}
.waiting{display:flex;gap:16px;align-items:center;color:var(--muted)}
.waiting p{margin:0}
.pulse{flex:none;width:18px;height:18px;border-radius:50%;background:var(--brand);animation:pulse 1.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--brand) 50%,transparent)}100%{box-shadow:0 0 0 16px transparent}}
.codeform input#codeIn{width:100%;height:74px;text-align:center;font:800 40px var(--mono);letter-spacing:.35em;border-radius:16px;border:2px solid var(--line);background:var(--surface2);color:var(--ink);margin:6px 0 12px}
.codeform input#codeIn:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 5px color-mix(in srgb,var(--brand) 15%,transparent)}
.markedok{text-align:center}
.markedok h3{margin:10px 0 0;font:700 22px var(--display)}
.tick{width:72px;height:72px;border-radius:50%;margin:6px auto 0;display:grid;place-items:center;background:var(--good);color:#fff;animation:pop .5s var(--ease)}
.tick .ico{width:36px;height:36px}
.gcard .members{display:grid;gap:10px;margin:8px 0 6px}
.mem{display:flex;align-items:center;gap:14px;padding:10px 14px;border-radius:14px;background:var(--surface2);border:1px solid var(--line);flex-wrap:wrap}
.mem b{display:block}.mem b small{color:var(--muted);font-weight:600}
.mem span:not(.av):not(.pchip){font-size:14px;color:var(--muted)}
.mem .pchip{margin-left:auto}
.asg .adesc{color:var(--ink2);margin-bottom:14px}
.asteps{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:860px){.asteps{grid-template-columns:1fr}}
.astep{padding:16px;border-radius:16px;background:var(--surface2);border:1px solid var(--line);display:grid;gap:10px;align-content:start}
.ahead{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;align-items:center}
.checks{display:grid;gap:8px}
.arow{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.arow a{color:var(--brand);font-weight:700}
.arow .ico{width:13px;height:13px}
.marklist{display:grid;gap:12px}
.mrow{display:grid;grid-template-columns:140px 1fr 120px;gap:14px;align-items:center}
.mrow span{text-align:right}.mrow em{color:var(--muted);font-size:14px}
.mbar{height:12px;border-radius:12px;background:var(--surface2);overflow:hidden}
.mbar i{display:block;height:100%;border-radius:12px;background:linear-gradient(90deg,var(--brand),var(--good));animation:grow 1s var(--ease)}
@keyframes grow{from{width:0!important}}
@media (max-width:560px){.mrow{grid-template-columns:1fr 90px}.mrow .mbar{grid-column:1/-1;order:3}}

/* ============ teacher pages ============ */
.liverow{display:flex;flex-wrap:wrap;gap:14px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.liverow:last-child{border-bottom:0}
.liverow .dot{width:12px;height:12px;border-radius:50%;background:var(--bad);animation:pulse 1.6s infinite;--brand:var(--bad)}
.liverow .btn{margin-left:auto}
.ipbox{display:flex;flex-wrap:wrap;gap:12px;align-items:center;padding:14px 16px;border-radius:16px;background:var(--surface2);border:1px solid var(--line);margin:12px 0 18px}
.ipbox>div{flex:1;min-width:200px}
.ipbox small{display:block;font-size:13px;color:var(--muted)}
.ipbox b{font-size:20px;margin-right:8px}
.gcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr));gap:16px}
.gmini{margin:0}
.gm{display:flex;justify-content:space-between;gap:10px;padding:6px 0;border-bottom:1px dashed var(--line);font-size:15px;align-items:baseline}.gm span{min-width:0}
.gm small{color:var(--muted);font-family:var(--mono);font-size:12px;white-space:nowrap}
.clist{margin:0;padding-left:20px;color:var(--ink2)}
.subs{display:grid;gap:12px;margin-top:14px}
.sub{padding:14px 16px;border-radius:14px;border:1px solid var(--line);display:grid;gap:8px}
.shd{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline}
.sdesc{white-space:pre-wrap;color:var(--ink2);font-size:15px}
.schk{display:flex;flex-wrap:wrap;gap:6px}
.schk span{font-size:13px;padding:3px 9px;border-radius:8px}
.schk .y{background:color-mix(in srgb,var(--good) 14%,transparent);color:var(--good)}
.schk .n{background:var(--surface2);color:var(--muted)}
.sub a{color:var(--brand);word-break:break-all}
.maxrow{display:flex;flex-wrap:wrap;gap:12px;align-items:end}
.maxrow label{display:grid;gap:4px;font-size:13.5px;font-weight:600;color:var(--ink2);width:110px}
.mtable input{width:110px;min-height:36px;padding:5px 10px;border-radius:9px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:15px var(--mono)}
.mtable input.dirty{border-color:var(--amber);background:color-mix(in srgb,var(--amber) 10%,var(--surface))}
.mtable input.bad{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 10%,var(--surface))}

/* live attendance code (teacher projects this) */
.livecode{position:fixed;inset:0;z-index:95;display:flex;flex-direction:column;background:radial-gradient(900px 500px at 50% 0%,color-mix(in srgb,var(--brand) 30%,#0b0f22),#070a18);color:#fff;opacity:0;transition:opacity .3s}
.livecode.on{opacity:1}
.lchead{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 24px;flex-wrap:wrap}
.lchead small{display:block;color:#aab4e8;font-size:14px}.lchead b{font:700 20px var(--display)}
.lcact{display:flex;gap:10px;align-items:center}
.livecode .btn.ghost{color:#fff!important;border-color:rgba(255,255,255,.35)}
.livecode .iconbtn{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2);color:#fff}
.lcmain{flex:1;display:grid;place-items:center;align-content:center;gap:22px;padding:20px}
.lcring{--p:100;position:relative;width:min(78vmin,620px);aspect-ratio:1;display:grid;place-items:center}
.lcring svg{position:absolute;inset:0;transform:rotate(-90deg)}
.lcring circle{fill:none;stroke:rgba(255,255,255,.1);stroke-width:5}
.lcring circle.v{stroke:var(--amber);stroke-linecap:round;stroke-dasharray:100;stroke-dashoffset:calc(100 - var(--p));transition:stroke-dashoffset .25s linear}
.lccode{font:800 clamp(56px,12vmin,150px)/1 var(--mono);letter-spacing:.06em;text-shadow:0 10px 40px rgba(0,0,0,.4)}
.lccode.flip{animation:flip .5s var(--ease)}
@keyframes flip{0%{transform:rotateX(90deg);opacity:0}100%{transform:none;opacity:1}}
.livecode.ended .lccode{color:#8791bd}
.lcsub{margin:0;color:#c9d0f5;font-size:clamp(15px,2vmin,20px);text-align:center}
.lcstats{display:flex;gap:18px;flex-wrap:wrap;justify-content:center}
.lcstats div{min-width:150px;text-align:center;padding:12px 18px;border-radius:16px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14)}
.lcstats b{display:block;font:800 26px var(--display)}.lcstats span{color:#aab4e8;font-size:13.5px}
#guestBtn{white-space:nowrap}
@media (max-width:480px){#guestBtn small{display:none}.auth{padding-bottom:24px;align-content:center;gap:16px}.auth .demobar{position:relative;left:auto;bottom:auto;transform:none;width:min(440px,100%);box-sizing:border-box}}
.un b:only-child{font:700 13.5px var(--mono);letter-spacing:.02em}
.aurora{transform:translate(calc(var(--mx,0) * -3.5vmax),calc(var(--my,0) * -3vmax))}
.aurora i:nth-child(2){translate:calc(var(--mx,0) * 5vmax) calc(var(--my,0) * 4vmax)}
.aurora i:nth-child(3){translate:calc(var(--mx,0) * -4vmax) calc(var(--my,0) * 5vmax)}
.authgrid{translate:calc(var(--mx,0) * -24px) 0}
.authspot{position:absolute;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(260px circle at var(--px,-999px) var(--py,-999px),rgba(90,200,255,.16),transparent 70%)}
.auth .authcard{translate:calc(var(--mx,0) * -8px) calc(var(--my,0) * -8px)}
@media (prefers-reduced-motion:reduce){.aurora,.aurora i,.authgrid,.auth .authcard{transform:none;translate:none}}

/* ============ dashboards ============ */
.dash{padding-block:34px 60px}
.dhead{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:24px}
.dhead h1{font:800 clamp(30px,4vw,42px)/1.1 var(--display);margin:6px 0 0}
.dkpis{display:flex;flex-wrap:wrap;gap:10px}
.dkpis div{min-width:108px;padding:12px 16px;border-radius:16px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.dkpis b{display:block;font:800 26px/1 var(--display)}
.dkpis span{font-size:13px;color:var(--muted)}
.dkpis .warn b{color:var(--bad)}
.dkpis .live{border-color:color-mix(in srgb,var(--good,#16a34a) 50%,var(--line))}
.dkpis .live b{color:var(--good,#16a34a)}
.pchip.warn{background:color-mix(in srgb,var(--bad) 12%,transparent);color:var(--bad);border-color:color-mix(in srgb,var(--bad) 35%,transparent)}
.dgrid2{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;margin-bottom:10px}
.dgrid2 .pcard{margin:0}
.dnext{position:relative;overflow:hidden;background:linear-gradient(135deg,color-mix(in srgb,var(--brand) 14%,var(--surface)),var(--surface) 60%)}
.dnext h2{font:800 26px/1.2 var(--display);margin:6px 0 12px}
.dmeta{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--ink2);font-weight:600;margin-bottom:16px}
.dmeta span{display:inline-flex;align-items:center;gap:6px}
.dmeta .ico,.dmeta svg{width:17px;height:17px;color:var(--muted)}
.dtoday{display:grid;gap:8px}
.drow{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;padding:10px 12px;border-radius:14px;background:var(--surface2);border-left:4px solid var(--c)}
.drow.now{box-shadow:0 0 0 2px color-mix(in srgb,var(--c) 45%,transparent)}
.drow b{display:block}.drow small{color:var(--muted)}
.dtime{font:700 13px var(--mono);color:var(--ink2)}
.dsec{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:34px 0 14px}
.dsec h2{font:800 22px/1.2 var(--display);margin:0}
.dsubjects{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr));gap:18px}
.dsub{display:flex;flex-direction:column;gap:14px;padding:20px;border-radius:22px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);color:inherit;text-decoration:none;border-top:5px solid var(--c);transition:transform .25s var(--ease),box-shadow .25s}
.dsub:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.dsubtop{display:flex;gap:12px;align-items:center}
.dsubtop h3{margin:0;font:800 19px/1.2 var(--display)}
.dsubtop small{color:var(--muted);font:600 12px var(--mono)}
.cicon{flex:none;width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:var(--c);color:#fff}
.cicon svg,.cicon .ico{width:22px;height:22px}
.dsubact{margin-left:auto;display:flex;gap:4px}
.dstats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.dstats div{padding:8px 6px;border-radius:12px;background:var(--surface2);text-align:center}
.dstats b{display:block;font:800 19px/1.1 var(--display)}
.dstats span{font-size:11.5px;color:var(--muted)}
.dchips{display:flex;flex-wrap:wrap;gap:6px}
.dlinks{margin-top:auto;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-weight:600;font-size:14px}
.dlinks svg{width:18px;height:18px;color:var(--c)}
.week{display:grid;grid-template-columns:repeat(var(--n),minmax(120px,1fr));gap:10px;overflow-x:auto;padding-bottom:6px}
.wday{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:12px;min-height:120px}
.wday.today{border-color:var(--brand);box-shadow:0 0 0 2px color-mix(in srgb,var(--brand) 25%,transparent)}
.wday h4{margin:0 0 10px;font:700 13px var(--mono);text-transform:uppercase;color:var(--muted)}
.wday.today h4{color:var(--brand)}
.wday em{color:var(--muted)}
.wcls{padding:8px 10px;border-radius:12px;margin-bottom:8px;background:color-mix(in srgb,var(--c) 12%,var(--surface));border-left:3px solid var(--c);font-size:13px}
.wcls b{display:block;font:700 12px var(--mono)}.wcls span{display:block;font-weight:700}.wcls small{color:var(--muted)}
.ttform{display:grid;grid-template-columns:repeat(3,1fr);gap:0 14px;margin-bottom:10px}
.ttform .perr,.ttform .pact{grid-column:1/-1}
.swatches,.iconpick{display:flex;flex-wrap:wrap;gap:8px}
.swatches input,.iconpick input{position:absolute;opacity:0;pointer-events:none}
.swatches i{display:block;width:32px;height:32px;border-radius:50%;background:var(--c);cursor:pointer;box-shadow:inset 0 0 0 3px var(--surface)}
.swatches input:checked+i{outline:3px solid var(--c);outline-offset:2px}
.iconpick i{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);cursor:pointer;color:var(--ink2)}
.iconpick i svg{width:20px;height:20px}
.iconpick input:checked+i{background:var(--brand);color:#fff;border-color:var(--brand)}
.jsonbox{background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font:13px/1.5 var(--mono);white-space:pre-wrap;overflow:auto}
/* student */
.dcourse{background:var(--surface);border:1px solid var(--line);border-radius:26px;padding:22px;box-shadow:var(--shadow);margin-bottom:24px;border-top:5px solid var(--c)}
.dctitle{display:flex;gap:14px;align-items:center;margin-bottom:16px}
.dctitle h2{margin:0;font:800 24px/1.2 var(--display)}.dctitle small{color:var(--muted);font:600 12.5px var(--mono)}
.dctitle .btn{margin-left:auto}
.dlive{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;padding:12px 16px;border-radius:16px;margin-bottom:16px;background:color-mix(in srgb,var(--good,#16a34a) 12%,var(--surface));border:1px solid color-mix(in srgb,var(--good,#16a34a) 40%,transparent);color:inherit;text-decoration:none}
.dlive .dot{width:10px;height:10px;border-radius:50%;background:var(--good,#16a34a);animation:pulse 1.4s infinite}
.dlive .btn{margin-left:auto}
@keyframes pulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--good,#16a34a) 60%,transparent)}100%{box-shadow:0 0 0 12px transparent}}
.dtiles{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.dtile{display:flex;flex-direction:column;gap:6px;padding:16px;border-radius:18px;background:var(--surface2);border:1px solid var(--line);color:inherit;text-decoration:none;transition:transform .2s var(--ease)}
a.dtile:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--c) 45%,var(--line))}
.dtile h4{margin:0 0 4px;display:flex;align-items:center;gap:6px;font:700 13px var(--mono);text-transform:uppercase;color:var(--muted)}
.dtile h4 svg{width:16px;height:16px;color:var(--c)}
.dtrow{display:flex;align-items:center;gap:12px}
.dtile .big{font:800 30px/1 var(--display)}.dtile .big small{font-size:16px;color:var(--muted)}
.dtile .pring text,.dtile .pring b{font-size:18px}
.gname{font:800 20px/1.2 var(--display)}.gname.muted{color:var(--muted)}
.avs{display:flex;margin-top:4px}.avs .av{margin-right:-6px;border:2px solid var(--surface2)}
.dasg{margin-top:18px}
.dasg .phd{margin-bottom:8px}
.darow{display:grid;grid-template-columns:1fr auto;gap:6px 14px;align-items:center;padding:12px 14px;border-radius:14px;border:1px solid var(--line);margin-bottom:8px;color:inherit;text-decoration:none}
.darow:hover{border-color:color-mix(in srgb,var(--c) 45%,var(--line))}
.darow .due{grid-column:1/-1;font-size:13.5px;color:var(--muted)}
@media (max-width:900px){.dgrid2{grid-template-columns:1fr}.dtiles{grid-template-columns:1fr 1fr}.ttform{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.dtiles{grid-template-columns:1fr}.dstats{grid-template-columns:repeat(2,1fr)}.ttform{grid-template-columns:1fr}.dctitle{flex-wrap:wrap}.dctitle .btn{margin-left:0}.darow{grid-template-columns:1fr}}
.dtile .pring circle:not(.v){stroke:var(--line)}
/* student dashboard: 3 tiles, then group + assignments */
.dtiles{grid-template-columns:repeat(3,1fr)}
.dlower{display:grid;grid-template-columns:minmax(min(260px,100%),1fr) 2fr;gap:16px;margin-top:16px;align-items:start}
.dlower .dasg{margin-top:0;padding:16px 18px;border-radius:18px;border:1px solid var(--line)}
.dgroup{display:block;padding:16px 18px;border-radius:18px;background:var(--surface2);border:1px solid var(--line);color:inherit;text-decoration:none;transition:border-color .2s}
.dgroup:hover{border-color:color-mix(in srgb,var(--c) 45%,var(--line))}
.dgroup h4{margin:0 0 8px;display:flex;align-items:center;gap:6px;font:700 13px var(--mono);text-transform:uppercase;color:var(--muted)}
.dgroup h4 svg{width:16px;height:16px;color:var(--c)}
.gmembers{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:8px}
.gmembers li{display:flex;align-items:center;gap:10px}
.gmembers .av{width:34px;height:34px;font-size:12px;flex:none}
.gmembers b{display:block;font-size:15px}.gmembers small{color:var(--muted);font:600 12px var(--mono)}
.darow{grid-template-columns:1fr}
.darow .due{grid-column:auto}
.vivaline{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13.5px;color:var(--ink2);margin-top:8px}
.vivaline svg{width:16px;height:16px;color:var(--brand)}
.vivabox{display:flex;gap:12px;align-items:center;padding:12px 16px;margin:12px 0;border-radius:14px;background:color-mix(in srgb,var(--brand) 10%,var(--surface));border:1px solid color-mix(in srgb,var(--brand) 30%,transparent)}
.vivabox svg{width:22px;height:22px;color:var(--brand);flex:none}
.vivabox b{display:block}.vivabox span{font-size:14px;color:var(--muted)}
.lockline{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--good);font-weight:600}
.lockline svg{width:15px;height:15px}
.astep.done{border-color:color-mix(in srgb,var(--good) 40%,var(--line))}
.astep textarea:disabled,.astep input:disabled{opacity:1;background:var(--surface2);color:var(--ink2)}
.shd{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px}
.sbtns{margin-left:auto;display:flex;gap:6px}
@media (max-width:900px){.dtiles{grid-template-columns:1fr 1fr}.dlower{grid-template-columns:1fr}}
@media (max-width:520px){.dtiles{grid-template-columns:1fr}}
/* assignment: 3 steps, viva card */
.asteps{grid-template-columns:repeat(3,1fr)}
.astep .pfield{margin-bottom:10px}
.vivabig{display:flex;gap:14px;align-items:center;margin-top:6px}
.vdate{flex:none;width:64px;border-radius:14px;overflow:hidden;text-align:center;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.vdate span{display:block;background:var(--brand);color:#fff;font:700 12px var(--mono);text-transform:uppercase;padding:3px 0}
.vdate b{display:block;font:800 26px/1.5 var(--display)}
.vivabig b{display:block}.vivabig span{display:block;font-size:14px;color:var(--ink2)}.vivabig small{display:block;color:var(--muted);margin-top:2px}
.vivabig em{display:inline-block;margin-top:6px;font:700 12px var(--mono);font-style:normal;color:var(--brand)}
.slinks{display:flex;flex-wrap:wrap;gap:4px 14px}
.vfill{margin:6px 0 14px;padding:10px 14px;border:1px dashed var(--line);border-radius:14px}
.vfill summary{cursor:pointer;font-weight:700;display:flex;align-items:center;gap:6px}
.vfill summary svg{width:16px;height:16px}
.vfill .pform3{margin-top:12px}
.vtable input{width:100%;min-height:38px;padding:6px 8px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:14px var(--body)}
.vtable td:first-child small{display:block;color:var(--muted);font-size:12px}
.vtable td:nth-child(4) input{width:70px}
@media (max-width:1000px){.asteps{grid-template-columns:1fr}}
.firstbtn{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;margin-top:12px;padding:10px;border-radius:12px;background:color-mix(in srgb,var(--brand) 8%,transparent);border:1px dashed color-mix(in srgb,var(--brand) 40%,transparent)}
.firstbtn svg{width:16px;height:16px}
.firstbtn{flex-wrap:wrap;column-gap:4px;text-align:center}.firstbtn b{white-space:nowrap}
.authcard .steps{display:grid;gap:12px;margin:6px 0 18px}
.authcard .steps>div{display:flex;gap:12px;align-items:flex-start}
.authcard .steps p{margin:2px 0 0}
.authcard .steps .num{flex:none;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:var(--brand);color:#fff;font:700 14px var(--display)}
.btn.danger-solid{background:var(--bad);border-color:var(--bad);color:#fff}
.btn.danger-solid:hover{filter:brightness(1.08)}
.btn.danger-solid svg{width:15px;height:15px}
.liverow .btn:first-of-type{margin-left:auto}
.dlivebar{border-color:color-mix(in srgb,var(--good) 45%,var(--line));background:color-mix(in srgb,var(--good) 6%,var(--surface))}
.dlivebar h3{display:flex;align-items:center;gap:8px}
.dlivebar .dot{width:10px;height:10px;border-radius:50%;background:var(--good);animation:pulse 1.4s infinite}
.dlivebar .liverow:last-child{border-bottom:0}
.liverow .btn + .btn{margin-left:0}

/* ---- switch ---- */
.switch{position:relative;flex:none;width:58px;height:32px;border-radius:999px;border:0;background:var(--line);cursor:pointer;transition:background .25s}
.switch i{position:absolute;top:4px;left:4px;width:24px;height:24px;border-radius:50%;background:#fff;box-shadow:0 2px 6px rgba(0,0,0,.25);transition:transform .3s var(--ease)}
.switch.on{background:var(--good)}
.switch.on i{transform:translateX(26px)}
.switch.busy{opacity:.6}
/* same Wi-Fi check card */
.wifisw{display:flex;align-items:center;gap:16px}
.wifisw b{font-size:16px}.wifisw p{margin:4px 0 0}
.wifisw-i{width:46px;height:46px;flex:none;border-radius:14px;display:grid;place-items:center;background:color-mix(in srgb,var(--good) 14%,transparent);color:var(--good)}
.wifisw.off .wifisw-i{background:color-mix(in srgb,var(--amber) 22%,transparent);color:#a86400}
.wifisw.off{border-color:color-mix(in srgb,var(--amber) 55%,var(--line))}
.wifisw .switch{margin-left:auto}
/* assessments editor */
.aslist{display:grid;gap:8px}
.asrow{display:grid;grid-template-columns:minmax(140px,1fr) auto auto auto 40px;gap:10px;align-items:center;padding:8px 10px;border-radius:14px;background:var(--surface2);border:1px solid var(--line);transition:opacity .2s}
.asrow.hid{opacity:.65;border-style:dashed}
.asrow input{padding:8px 10px;border-radius:10px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);font:600 15px var(--body);min-width:0}
.asname{width:100%}
.asmax{display:flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--muted)}.asmax input{width:78px}
.asbonus{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:600}
.asvis{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font:700 13px var(--body);cursor:pointer;transition:all .2s}
.asvis .ico,.asvis svg{width:16px;height:16px}
.asvis.on{color:var(--good);border-color:color-mix(in srgb,var(--good) 45%,var(--line))}
.asvis.off{color:var(--muted);border-style:dashed}
.asrow .iconbtn{width:36px;height:36px}
.asfoot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:10px}
.asfoot p{margin:0}
th.hidcol,td.hidcol{opacity:.5}
@media (max-width:700px){.asrow{grid-template-columns:1fr auto;}.asrow .asname{grid-column:1/-1}}
/* quiz hide / release */
.qzl-side .asvis{height:32px}

/* ---- banners ---- */
.bnhost:empty{display:none}
.bnhost{display:grid;gap:10px;margin-bottom:16px}
.bn{--t:var(--brand);position:relative;display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border-radius:18px;background:color-mix(in srgb,var(--t) 9%,var(--surface));border:1px solid color-mix(in srgb,var(--t) 35%,var(--line));box-shadow:var(--shadow);animation:bnIn .5s var(--ease) both;overflow:hidden}
.bn::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--t)}
.bn.warn{--t:#e8590c}.bn.good{--t:var(--good)}
.bn.out{animation:bnOut .3s ease forwards}
@keyframes bnIn{from{opacity:0;transform:translateY(-10px)}}
@keyframes bnOut{to{opacity:0;transform:translateX(30px)}}
.bn-i{flex:none;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--t);color:#fff}
.bn.warn .bn-i{animation:bnRing 2.4s ease-in-out infinite}
@keyframes bnRing{0%,70%,100%{transform:none}75%{transform:rotate(-14deg)}80%{transform:rotate(12deg)}85%{transform:rotate(-8deg)}90%{transform:rotate(4deg)}}
.bn-i .ico,.bn-i svg{width:20px;height:20px}
.bn-t{min-width:0}.bn-t b{display:block;font-size:16px}.bn-t p{margin:3px 0 0;font-size:14.5px;color:var(--ink2)}.bn-t small{display:inline-block;margin-top:4px;font:700 11.5px var(--mono);color:var(--muted);text-transform:uppercase}
.bn-x{margin-left:auto;flex:none;width:32px;height:32px;border-radius:10px;border:0;background:transparent;color:var(--muted);cursor:pointer;display:grid;place-items:center}
.bn-x:hover{background:color-mix(in srgb,var(--t) 15%,transparent)}
.bn-x .ico,.bn-x svg{width:16px;height:16px}
.bnlist{display:grid;gap:14px;margin-top:14px}
.bnrow{display:grid;gap:8px;padding:12px;border-radius:20px;background:var(--surface2);border:1px solid var(--line)}
.bnrow .bn{box-shadow:none;animation:none}
.bnmeta{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.bnform{display:grid;gap:12px}
.bntones{display:flex;gap:8px;flex-wrap:wrap}
.bntone{position:relative;cursor:pointer}.bntone input{position:absolute;opacity:0}
.bntone span{display:inline-flex;height:36px;align-items:center;padding:0 14px;border-radius:999px;border:1.5px solid var(--line);font-weight:700;font-size:14px;transition:all .2s}
.bntone.info span{color:var(--brand)}.bntone.warn span{color:#e8590c}.bntone.good span{color:var(--good)}
.bntone input:checked+span{background:currentColor;border-color:currentColor}
.bntone input:checked+span{color:#fff}.bntone.info input:checked+span{background:var(--brand);border-color:var(--brand)}.bntone.warn input:checked+span{background:#e8590c;border-color:#e8590c}.bntone.good input:checked+span{background:var(--good);border-color:var(--good)}
.bnsecs{display:flex;flex-wrap:wrap;gap:14px;min-height:40px;align-items:center}
.bndates{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:600px){.bndates{grid-template-columns:1fr}}

/* ---- issue reports ---- */
.isgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:20px;align-items:start}
@media (max-width:900px){.isgrid{grid-template-columns:minmax(0,1fr)}}
.isform{display:grid;gap:12px}
.isform select,.isform input,.isform textarea{width:100%}
.islist{display:grid;gap:12px}
.iscard{position:relative;display:grid;gap:8px;padding:16px 18px;border-radius:20px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.iscard>b{font-size:16.5px}.iscard p{margin:0;font-size:14.5px}
.iscard h4{margin:2px 0 0;font-size:17px}
.islist.t .iscard{border-left:5px solid var(--line)}
.islist.t .iscard.open{border-left-color:#e8590c}.islist.t .iscard.progress{border-left-color:var(--brand)}.islist.t .iscard.resolved{border-left-color:var(--good)}
.ishd{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.ishd small{margin-left:auto}
.ishd>div{display:grid;line-height:1.25}
.isav{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:color-mix(in srgb,var(--brand) 14%,transparent);color:var(--brand);font:800 13px var(--mono)}
.isst{display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 10px;border-radius:999px;font:700 11.5px var(--mono);text-transform:uppercase;letter-spacing:.03em}
.isst::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.isst.open{background:color-mix(in srgb,#e8590c 14%,transparent);color:#c2410c}.isst.open::before{animation:qzBlink 1.4s infinite}
.isst.progress{background:color-mix(in srgb,var(--brand) 14%,transparent);color:var(--brand)}
.isst.resolved{background:color-mix(in srgb,var(--good) 15%,transparent);color:var(--good)}
.isst.closed{background:var(--surface2);color:var(--muted)}
.issteps{display:grid;grid-template-columns:repeat(3,1fr);margin-top:4px}
.issteps span{position:relative;display:grid;justify-items:center;gap:4px;font-size:12px;font-weight:600;color:var(--muted)}
.issteps span::before{content:"";position:absolute;top:6px;left:-50%;right:50%;height:3px;background:var(--line)}
.issteps span:first-child::before{display:none}
.issteps i{position:relative;z-index:1;width:15px;height:15px;border-radius:50%;background:var(--surface);border:3px solid var(--line)}
.issteps span.on{color:var(--ink)}.issteps span.on i{border-color:var(--good);background:var(--good)}.issteps span.on::before{background:var(--good)}
.isnote{padding:10px 12px;border-radius:14px;background:color-mix(in srgb,var(--good) 9%,var(--surface2));font-size:14.5px}
.isnote span{display:flex;align-items:center;gap:6px;font:700 12px var(--mono);text-transform:uppercase;color:var(--good);margin-bottom:3px}
.isnote span .ico,.isnote span svg{width:15px;height:15px}
.isfilters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.isfilters button{height:36px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-weight:700;font-size:14px;cursor:pointer}
.isfilters button b{margin-left:4px;padding:1px 7px;border-radius:99px;background:var(--surface2);font-size:12px}
.isfilters button.on{background:var(--btn,var(--brand));color:#fff;border-color:transparent}.isfilters button.on b{background:rgba(255,255,255,.2)}
.isctl{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.isseg{display:inline-flex;padding:4px;gap:4px;border-radius:999px;background:var(--surface2);border:1px solid var(--line)}
.isseg button{height:32px;padding:0 13px;border-radius:999px;border:0;background:none;font-weight:700;font-size:13px;color:var(--muted);cursor:pointer;transition:all .2s}
.isseg button.on.open{background:#e8590c;color:#fff}.isseg button.on.progress{background:var(--brand);color:#fff}.isseg button.on.resolved{background:var(--good);color:#fff}.isseg button.on.closed{background:var(--ink2);color:#fff}
.isreply{display:grid;grid-template-columns:1fr auto auto;gap:8px;align-items:start}
.isreply textarea{width:100%;padding:9px 11px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);font:14.5px var(--body);resize:vertical}
@media (max-width:600px){.isreply{grid-template-columns:1fr auto}.isreply textarea{grid-column:1/-1}}

/* ---- Python scratchpad ---- */
.sp{display:grid;grid-template-columns:230px minmax(0,1fr);gap:18px;align-items:start}
.sp-files{position:sticky;top:96px;display:grid;gap:10px;padding:14px;border-radius:20px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.sp-fhd{display:flex;align-items:center;justify-content:space-between}
.sp-fhd b{display:flex;align-items:center;gap:6px}.sp-fhd .ico,.sp-fhd svg{width:17px;height:17px}
.sp-fhd .iconbtn{width:34px;height:34px}
#spList{display:grid;gap:4px;max-height:300px;overflow:auto}
.sp-f{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;border-radius:10px;border:0;background:none;text-align:left;font:600 14px var(--mono);color:var(--ink2);cursor:pointer}
.sp-f .ico,.sp-f svg{width:15px;height:15px;flex:none;opacity:.6}
.sp-f span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sp-f:hover{background:var(--surface2)}.sp-f.on{background:color-mix(in srgb,var(--brand) 12%,transparent);color:var(--brand)}
.sp-snips{display:flex;flex-wrap:wrap;gap:6px;padding-top:10px;border-top:1px solid var(--line)}
.sp-snips small{width:100%;font:700 11.5px var(--mono);text-transform:uppercase;color:var(--muted)}
.sp-snips button{height:30px;padding:0 11px;border-radius:999px;border:1px solid var(--line);background:var(--surface2);font:600 12.5px var(--body);cursor:pointer}
.sp-snips button:hover{border-color:var(--brand);color:var(--brand)}
.sp-files .pmuted{margin:0}.sp-files .pmuted .ico{width:13px;height:13px;vertical-align:-2px}
.sp-main{display:grid;gap:10px;min-width:0}
.sp-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.sp-bar .iconbtn{width:40px;height:40px;flex:none;cursor:pointer}
.sp-name{flex:1;min-width:140px;height:42px;padding:0 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);font:700 15px var(--mono)}
.sp-st{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--muted);max-width:330px}
.sp-st span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sp-st i{width:9px;height:9px;border-radius:50%;background:var(--line);flex:none}
.sp-st[data-s=busy] i{background:var(--amber);animation:qzBlink 1s infinite}.sp-st[data-s=ok] i{background:var(--good)}.sp-st[data-s=err] i{background:var(--bad)}
.sp-ed{border-radius:18px;overflow:hidden;border:1px solid #232a52;background:#141a35;box-shadow:var(--shadow)}
.sp-ed textarea{display:block;width:100%;min-height:340px;padding:14px;border:0;background:#141a35;color:#e6e9f7;font:14.5px/1.6 var(--mono);resize:vertical;outline:none}
.sp-ed .CodeMirror{height:auto;min-height:340px;background:#141a35;color:#e6e9f7;font:14.5px/1.6 var(--mono);padding:8px 0}
.sp-ed .CodeMirror-scroll{min-height:340px}
.sp-ed .CodeMirror-gutters{background:#10152d;border-right:1px solid #232a52}
.sp-ed .CodeMirror-linenumber{color:#5a628c}
.sp-ed .CodeMirror-cursor{border-left:2px solid #ffc27d}
.sp-ed .CodeMirror-selected,.sp-ed .CodeMirror-focused .CodeMirror-selected{background:rgba(128,149,245,.28)}
.sp-ed .CodeMirror-matchingbracket{color:#ffc27d!important;text-decoration:underline}
.sp-ed .CodeMirror .cm-keyword{color:#c792ea}.sp-ed .CodeMirror .cm-def,.sp-ed .CodeMirror .cm-variable-2{color:#82aaff}.sp-ed .CodeMirror .cm-string{color:#c3e88d}.sp-ed .CodeMirror .cm-number{color:#f78c6c}.sp-ed .CodeMirror .cm-comment{color:#6f7aa8;font-style:italic}.sp-ed .CodeMirror .cm-builtin{color:#ffcb6b}.sp-ed .CodeMirror .cm-operator{color:#89ddff}.sp-ed .CodeMirror .cm-variable{color:#e6e9f7}.sp-ed .CodeMirror .cm-property{color:#b2ccd6}
.sp-in{border-radius:14px;background:var(--surface);border:1px solid var(--line);padding:10px 14px}
.sp-in summary{cursor:pointer;font-weight:700;font-size:14px}
.sp-in textarea{width:100%;margin-top:8px;padding:8px 10px;border-radius:10px;border:1.5px solid var(--line);background:var(--surface2);color:var(--ink);font:14px var(--mono)}
.sp-ohd{display:flex;align-items:center;gap:10px}
.sp-ohd b{margin-right:auto}
.sp-out{min-height:150px;max-height:520px;overflow:auto;padding:12px 14px;border-radius:18px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);font:14px/1.55 var(--mono)}
.sp-out .sp-line{margin:0;white-space:pre-wrap;word-break:break-word;font:inherit}
.sp-out .sp-s-err{color:var(--bad);background:color-mix(in srgb,var(--bad) 7%,transparent);border-radius:10px;padding:8px 10px;margin:6px 0}
.sp-out .sp-s-val{color:var(--brand);font-weight:600}
.sp-out img{display:block;max-width:100%;margin:8px 0;border-radius:12px;border:1px solid var(--line);background:#fff;animation:pop .4s var(--ease)}
.sp-run{margin:10px 0 4px;font:700 11.5px var(--mono);color:var(--muted);text-transform:uppercase;letter-spacing:.05em;border-top:1px dashed var(--line);padding-top:8px}
.sp-run:first-child{margin-top:0;border-top:0;padding-top:0}
.sp-empty{color:var(--muted);font:15px/1.6 var(--body)}
.sp-empty kbd{font:700 12px var(--mono);padding:2px 6px;border-radius:6px;border:1px solid var(--line);background:var(--surface2)}
@media (max-width:860px){.sp{grid-template-columns:minmax(0,1fr)}.sp-files{position:static}#spList{grid-auto-flow:column;grid-auto-columns:max-content;overflow-x:auto}}
/* several sections in one attendance session */
.slsecs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;min-height:42px}
.slsec{position:relative;cursor:pointer}.slsec input{position:absolute;opacity:0}
.slsec span{display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:999px;border:1.5px solid var(--line);background:var(--surface);font-weight:700;transition:all .2s}
.slsec input:checked+span{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 8px 18px -10px var(--brand)}
.slsec input:focus-visible+span{outline:2px solid var(--brand);outline-offset:2px}
.lcgrid{display:grid;grid-template-columns:repeat(min(var(--n),3),minmax(0,1fr));gap:18px;width:min(1200px,94vw)}
.lccard{display:grid;justify-items:center;gap:8px;padding:22px 14px;border-radius:24px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16)}
.lcsec{font:700 15px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:#ffc27d}
.livecode.multi .lccode{font-size:clamp(40px,7vmin,96px)}
.lccard small{color:#aab4e8;font-size:14px}.lccard small b{color:#fff}
.lcbar{display:flex;align-items:center;gap:16px}
.lcring.sm{width:64px}.lcring.sm b{font:800 20px var(--mono)}
@media (max-width:700px){.lcgrid{grid-template-columns:1fr}}
/* groups: compact cards, details in a pop-up */
.gtop{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.gcount{display:inline-flex;align-items:baseline;gap:8px;padding:12px 20px;border-radius:18px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.gcount b{font:800 30px var(--display);color:var(--brand)}.gcount span{color:var(--muted);font-weight:600}
.gcards2{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(250px,100%),1fr));gap:12px}
.gcard{display:flex;align-items:center;gap:12px;width:100%;padding:14px 16px;border-radius:18px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);text-align:left;cursor:pointer;color:inherit;font:inherit;transition:transform .2s var(--ease),box-shadow .2s,border-color .2s}
.gcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:color-mix(in srgb,var(--brand) 40%,var(--line))}
.gicon{flex:none;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:color-mix(in srgb,var(--brand) 13%,transparent);color:var(--brand);font:800 14px var(--mono)}
.gtx{display:grid;min-width:0}.gtx b{font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.gtx small{color:var(--muted);font-size:13.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.gtx small::first-letter{color:#e8a200}
.gnum{margin-left:auto;font:800 22px var(--display);color:var(--ink)}.gnum small{font-size:13px;color:var(--muted)}
.gfoot{margin-top:22px;padding-top:16px;border-top:1px solid var(--line)}
.gmembers{display:grid;gap:8px;margin-bottom:10px}
.gm2{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;background:var(--surface2);border:1px solid var(--line)}
.gm2 .av{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:color-mix(in srgb,var(--brand) 14%,transparent);color:var(--brand);font:800 13px var(--mono)}
.gm2>span:last-child{display:grid}.gm2 small{color:var(--muted)}
.gstar{color:#e8a200}
.btn.danger{color:var(--bad)!important}
/* students page header */
.sthead{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.sthead h3{margin:0;display:flex;align-items:center;gap:8px}
.sthbtns{display:flex;gap:10px;flex-wrap:wrap}
/* timetable pop-up */
.ttmodal .pbox.wide{width:min(1100px,100%)}
.ttmodal .week{margin-bottom:14px}
.ttadd{margin:6px 0 14px;padding:12px 14px;border-radius:16px;background:var(--surface2);border:1px solid var(--line)}
.ttadd summary{cursor:pointer;font-weight:700;display:flex;align-items:center;gap:6px}.ttadd summary .ico{width:16px;height:16px}
.ttadd .ttform{margin-top:12px}
/* marks: two views */
.mkviews{display:inline-flex;gap:6px;padding:5px;margin-bottom:16px;border-radius:999px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow)}
.mkviews button{display:inline-flex;align-items:center;gap:7px;height:40px;padding:0 18px;border-radius:999px;border:0;background:none;font:700 14.5px var(--body);color:var(--ink2);cursor:pointer;transition:all .2s}
.mkviews button .ico,.mkviews button svg{width:17px;height:17px}
.mkviews button.on{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px var(--brand)}
/* import / export pop-ups */
.ioopts{display:grid;gap:12px}
.ioopt{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:14px;border-radius:16px;background:var(--surface2);border:1px solid var(--line)}
.ioopt>span{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:color-mix(in srgb,var(--brand) 13%,transparent);color:var(--brand)}
.ioopt p{margin:4px 0 10px}

/* ============ phones: tables scroll sideways instead of squeezing, compact cards ============ */
@media (max-width:640px){
  .ptable table{font-size:14px}
  .ptable td{padding:9px 10px;white-space:nowrap}
  .ptable td:has(textarea,p){white-space:normal}
  .qzl-card{gap:12px;padding:16px 16px 16px 18px}
  .qzl-ic{width:40px;height:40px;border-radius:12px;align-self:start}
  .qzl-ic .ico{width:20px;height:20px}
  .wifisw{flex-wrap:wrap;gap:12px}
  .wifisw>div:nth-child(2){flex:1 1 180px}
  .iscard>*,.isctl>*{min-width:0}
  .isseg{display:flex;overflow-x:auto;scrollbar-width:none;max-width:100%}
  .isseg button{flex:none;white-space:nowrap;padding:0 11px}
  .drow{grid-template-columns:1fr auto;gap:4px 12px}
  .drow .dtime{grid-column:1/-1}
}