/* Canada College Group — design system
   Fast by design: no frameworks, no web fonts, one stylesheet. */
:root{
  --navy:#0f2742; --navy-700:#173a63; --navy-900:#0a1b30;
  --gold:#b8934a; --gold-600:#9c7a37; --gold-soft:#f4ecd9;
  --paper:#faf8f3; --white:#fff; --ink:#1b2430; --muted:#5d6b7c; --line:#e4e0d5; --line-2:#eceff4;
  --ok:#1c7c3f; --warn:#9a5b00; --bad:#a4262c; --info:#1f5fa8;
  --radius:12px; --shadow:0 1px 2px rgba(15,39,66,.06),0 8px 24px rgba(15,39,66,.07);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.6;font-size:16px}
img,svg{max-width:100%;height:auto}
a{color:var(--navy-700);text-underline-offset:2px} a:hover{color:var(--gold-600)}
h1,h2,h3,h4{font-family:var(--serif);color:var(--navy);line-height:1.2;margin:0 0 .6rem;font-weight:700}
h1{font-size:clamp(2rem,4.2vw,3.2rem)} h2{font-size:clamp(1.5rem,2.6vw,2.1rem)} h3{font-size:1.25rem} h4{font-size:1.05rem}
p{margin:0 0 1rem} .lead{font-size:1.15rem;color:var(--muted)} .muted{color:var(--muted)} .small{font-size:.875rem}
.container{width:min(1160px,100% - 2rem);margin-inline:auto}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:.5rem 1rem;z-index:100} .skip:focus{left:.5rem;top:.5rem}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:4px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.7rem 1.25rem;border-radius:999px;border:1.5px solid transparent;
  font:600 .95rem/1.2 var(--sans);cursor:pointer;text-decoration:none;transition:background .15s,color .15s,border-color .15s,transform .05s;background:var(--navy);color:#fff}
.btn:hover{background:var(--navy-700);color:#fff} .btn:active{transform:translateY(1px)}
.btn-gold{background:var(--gold);color:#1b1405} .btn-gold:hover{background:#c9a35a;color:#1b1405}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--navy)} .btn-ghost:hover{background:var(--navy);color:#fff}
.btn-light{background:#fff;color:var(--navy)} .btn-light:hover{background:var(--gold-soft);color:var(--navy)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)} .btn-outline-light:hover{background:#fff;color:var(--navy)}
.btn-danger{background:var(--bad)} .btn-danger:hover{background:#861e23}
.btn-sm{padding:.4rem .85rem;font-size:.85rem} .btn-block{width:100%}
.link-btn{background:none;border:0;padding:0;color:var(--navy-700);text-decoration:underline;cursor:pointer;font:inherit}

/* Top bar & header */
.topbar{background:var(--navy-900);color:#cfd8e6;font-size:.85rem}
.topbar .container{display:flex;justify-content:space-between;gap:1rem;padding:.4rem 0;flex-wrap:wrap}
.topbar a{color:#e8d9b4;text-decoration:none}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:72px}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--navy)}
.brand svg{width:40px;height:40px;flex:none}
.brand b{font-family:var(--serif);font-size:1.2rem;line-height:1.1;display:block} .brand small{display:block;color:var(--muted);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:.3rem}
.nav a:not(.btn){padding:.5rem .8rem;text-decoration:none;color:var(--ink);font-weight:600;font-size:.95rem;border-radius:8px}
.nav a:not(.btn):hover,.nav a[aria-current=page]{color:var(--navy);background:var(--gold-soft)}
.nav form{display:inline;margin:0}
.nav-toggle{display:none;background:none;border:1.5px solid var(--navy);color:var(--navy);border-radius:8px;padding:.4rem .7rem;font-weight:700;cursor:pointer}
@media(max-width:880px){
  .nav-toggle{display:inline-block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:.8rem 1rem 1rem;box-shadow:var(--shadow)}
  .nav.open{display:flex}
}

/* Hero */
.hero{position:relative;color:#fff;background:
  radial-gradient(1200px 500px at 85% -10%,rgba(184,147,74,.28),transparent 60%),
  linear-gradient(135deg,var(--navy-900),var(--navy) 55%,var(--navy-700));overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to bottom,#000,transparent 85%);pointer-events:none}
.hero .container{position:relative;z-index:1;padding:clamp(3rem,8vw,6.5rem) 0}
.hero h1{color:#fff;max-width:18ch} .hero .lead{color:#d6deea;max-width:56ch;margin-bottom:1.6rem}
.hero .actions{display:flex;gap:.8rem;flex-wrap:wrap}
.eyebrow{font:700 .78rem/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:.9rem;display:block}
.hero .eyebrow{color:#e8d3a0}
.stats{background:var(--navy-900);color:#fff}
.stats .container{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;padding:1.4rem 0}
.stat b{display:block;font:700 2rem/1 var(--serif);color:#fff} .stat span{color:#b9c6d9;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase}

/* Sections & cards */
.section{padding:clamp(2.5rem,6vw,4.5rem) 0} .section.alt{background:#fff;border-block:1px solid var(--line)}
.section-head{max-width:46rem;margin-bottom:2rem} .section-head.center{text-align:center;margin-inline:auto}
.grid{display:grid;gap:1.25rem} .grid-3{grid-template-columns:repeat(auto-fill,minmax(285px,1fr))} .grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.4rem}
.card.flat{box-shadow:none}
.card h3 a{text-decoration:none;color:inherit} .card h3 a:hover{color:var(--gold-600)}
.course-card{display:flex;flex-direction:column;gap:.5rem;height:100%;transition:transform .15s,box-shadow .15s}
.course-card:hover{transform:translateY(-3px);box-shadow:0 2px 4px rgba(15,39,66,.08),0 16px 32px rgba(15,39,66,.12)}
.course-card .meta{margin-top:auto;padding-top:.8rem;display:flex;flex-wrap:wrap;gap:.4rem;border-top:1px solid var(--line-2)}
.course-card .code{font:700 .75rem/1 var(--sans);letter-spacing:.12em;color:var(--gold-600)}
.mode-tile{text-align:left} .mode-tile .ico{width:46px;height:46px;border-radius:12px;background:var(--gold-soft);display:grid;place-items:center;color:var(--navy);margin-bottom:.8rem}
.mode-tile .ico svg{width:24px;height:24px}
.split{display:grid;grid-template-columns:2fr 1fr;gap:2rem;align-items:start} @media(max-width:900px){.split{grid-template-columns:1fr}}
.prose p{max-width:68ch} .prose h2{margin-top:1.6rem}
.cta-band{background:linear-gradient(135deg,var(--navy),var(--navy-700));color:#fff;border-radius:18px;padding:clamp(1.6rem,4vw,3rem);display:flex;gap:1.5rem;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0}.cta-band p{margin:.3rem 0 0;color:#cfd9e8}

/* Badges, alerts */
.badge{display:inline-flex;align-items:center;gap:.3rem;padding:.2rem .6rem;border-radius:999px;font:600 .75rem/1.3 var(--sans);background:#eef1f6;color:var(--navy-700);white-space:nowrap}
.badge-ok{background:#e3f4ea;color:var(--ok)} .badge-warn{background:#fdf0d8;color:var(--warn)} .badge-bad{background:#fbe4e4;color:var(--bad)}
.badge-info{background:#e2edf9;color:var(--info)} .badge-gold{background:var(--gold-soft);color:#7d5f1f} .badge-muted{background:#eceef2;color:#5d6b7c}
.alert{padding:.8rem 1rem;border-radius:10px;border:1px solid;margin-bottom:1rem;font-size:.95rem;word-break:break-word}
.alert-success{background:#e8f6ee;border-color:#b6e0c6;color:#14532d} .alert-error{background:#fdecea;border-color:#f3b6b0;color:#7a1f1f}
.alert-info{background:#e8f1fb;border-color:#b9d3f0;color:#173b66}
.flashes{margin-bottom:1rem}

/* Forms */
.field{margin-bottom:1rem} .field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:.3rem;color:var(--navy)}
.field .req{color:var(--bad)}
input[type=text],input[type=email],input[type=password],input[type=url],input[type=number],input[type=search],input[type=date],input[type=file],select,textarea{
  width:100%;padding:.65rem .8rem;border:1.5px solid #c9ced8;border-radius:9px;background:#fff;font:inherit;color:var(--ink)}
textarea{resize:vertical;min-height:6rem}
input:focus,select:focus,textarea:focus{border-color:var(--navy-700);outline:3px solid rgba(184,147,74,.35)}
.has-error input,.has-error select,.has-error textarea{border-color:var(--bad)}
.hint{display:block;color:var(--muted);font-size:.82rem;margin-top:.25rem} .error{display:block;color:var(--bad);font-size:.85rem;margin-top:.25rem;font-weight:600}
.field-check .check{display:flex;gap:.6rem;align-items:flex-start;font-weight:400;cursor:pointer} .field-check input{margin-top:.28rem;width:1.05rem;height:1.05rem;accent-color:var(--navy)}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0 1.2rem}
.form-actions{display:flex;gap:.7rem;flex-wrap:wrap;align-items:center;margin-top:.6rem}
.hp{position:absolute!important;left:-9999px;height:0;overflow:hidden}
.radio-cards{display:grid;gap:.7rem;grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.radio-cards label{border:1.5px solid #c9ced8;border-radius:10px;padding:.8rem 1rem;display:flex;gap:.7rem;align-items:flex-start;cursor:pointer;font-weight:600;background:#fff}
.radio-cards label:has(input:checked){border-color:var(--navy);background:var(--gold-soft)}
.radio-cards input{margin-top:.25rem;accent-color:var(--navy)}

/* Tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table.table{width:100%;border-collapse:collapse;font-size:.92rem}
.table th{text-align:left;font:700 .74rem/1.2 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:.75rem .9rem;background:#f6f7fa;border-bottom:1px solid var(--line)}
.table td{padding:.7rem .9rem;border-bottom:1px solid var(--line-2);vertical-align:middle} .table tr:last-child td{border-bottom:0}
.table tr:hover td{background:#fcfbf8} .table .num{text-align:right;font-variant-numeric:tabular-nums}
.table form.inline{display:flex;gap:.4rem;align-items:center;flex-wrap:wrap;margin:0}
.table select,.table input[type=text]{padding:.35rem .5rem;font-size:.85rem;width:auto;min-width:0}
.table input.grade{width:5.5rem}
.empty{padding:2rem;text-align:center;color:var(--muted)}
.toolbar{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center;margin-bottom:1rem}
.toolbar form{display:flex;gap:.5rem;flex-wrap:wrap;margin:0;flex:1}
.toolbar input[type=search],.toolbar select{width:auto;min-width:11rem}
.pager{display:flex;gap:.4rem;align-items:center;justify-content:center;margin-top:1.2rem;flex-wrap:wrap}
.pager a,.pager span{padding:.4rem .8rem;border:1px solid var(--line);border-radius:8px;background:#fff;text-decoration:none;font-size:.9rem}
.pager .cur{background:var(--navy);color:#fff;border-color:var(--navy)}

/* Progress */
.progress{height:8px;border-radius:99px;background:#e8ebf1;overflow:hidden} .progress>i{display:block;height:100%;background:linear-gradient(90deg,var(--gold),#d3b36d);border-radius:99px}

/* Footer */
.site-footer{background:var(--navy-900);color:#b9c6d9;margin-top:0;padding:3rem 0 1.5rem}
.site-footer h4{color:#fff;font-family:var(--sans);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase}
.site-footer a{color:#dbe4f1;text-decoration:none} .site-footer a:hover{color:var(--gold)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem} @media(max-width:760px){.foot-grid{grid-template-columns:1fr}}
.site-footer ul{list-style:none;padding:0;margin:0} .site-footer li{margin:.35rem 0}
.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:2rem;padding-top:1rem;font-size:.82rem}

/* Auth pages */
.auth-wrap{min-height:60vh;display:grid;place-items:center;padding:3rem 1rem}
.auth-card{width:min(440px,100%)} .auth-card h1{font-size:1.8rem}
.page-head{background:linear-gradient(135deg,var(--navy-900),var(--navy));color:#fff;padding:2.4rem 0}
.page-head h1{color:#fff;font-size:clamp(1.7rem,3.2vw,2.5rem);margin:0} .page-head p{color:#cfd9e8;margin:.5rem 0 0}
.crumbs{font-size:.85rem;color:#b9c6d9;margin-bottom:.6rem} .crumbs a{color:#e8d9b4}

/* App (portal/admin) */
.app{display:grid;grid-template-columns:250px 1fr;min-height:100vh}
.app-top{grid-column:1/-1;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:.65rem 1.2rem;gap:1rem}
.app-top .brand{color:#fff} .app-top .brand small{color:#9fb3cf} .app-top .brand b{font-size:1.05rem}
.app-top .who{display:flex;align-items:center;gap:.8rem;font-size:.9rem}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--gold);color:#1b1405;display:grid;place-items:center;font-weight:700;font-size:.85rem}
.app-top .btn-outline-light{padding:.35rem .9rem;font-size:.82rem}
.app-top form{margin:0}
.side{background:#fff;border-right:1px solid var(--line);padding:1rem .8rem}
.side h5{margin:1.1rem .6rem .4rem;font:700 .7rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.side a{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.55rem .7rem;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:600;font-size:.92rem}
.side a:hover{background:#f4f1e8} .side a[aria-current=page]{background:var(--gold-soft);color:var(--navy)}
.side .count{background:var(--bad);color:#fff;border-radius:99px;font-size:.72rem;padding:.05rem .45rem}
.app-main{padding:1.6rem clamp(1rem,3vw,2.2rem) 3rem;background:#f4f5f8;min-width:0}
.app-main .page-title{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1.2rem}
.app-main .page-title h1{font-size:1.7rem;margin:0}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1rem;margin-bottom:1.4rem}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.1rem}
.kpi b{display:block;font:700 1.9rem/1.1 var(--serif);color:var(--navy)} .kpi span{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.07em}
.kpi a{text-decoration:none;color:inherit;display:block}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:1.2rem;overflow:hidden}
.panel>header{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.9rem 1.1rem;border-bottom:1px solid var(--line-2);flex-wrap:wrap}
.panel>header h2,.panel>header h3{margin:0;font-size:1.05rem;font-family:var(--sans)}
.panel .body{padding:1.1rem}
.list{list-style:none;margin:0;padding:0} .list li{padding:.8rem 1.1rem;border-bottom:1px solid var(--line-2);display:flex;gap:.8rem;align-items:center;justify-content:space-between;flex-wrap:wrap} .list li:last-child{border-bottom:0}
.list .t{font-weight:600} .list .s{font-size:.85rem;color:var(--muted)}
.tabs{display:flex;gap:.3rem;margin-bottom:1rem;flex-wrap:wrap} .tabs a{padding:.45rem .9rem;border-radius:99px;text-decoration:none;background:#fff;border:1px solid var(--line);font-weight:600;font-size:.88rem;color:var(--ink)} .tabs a[aria-current=page]{background:var(--navy);color:#fff;border-color:var(--navy)}
@media(max-width:860px){
  .app{grid-template-columns:1fr} .side{border-right:0;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:.2rem;padding:.6rem}
  .side h5{display:none} .app-top .who .name{display:none}
}

/* Lesson / exam */
.lesson-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.1rem,3vw,2rem)} .lesson-body p{max-width:70ch}
.video{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#000;margin-bottom:1.2rem} .video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.timer{position:sticky;top:.6rem;z-index:5;background:var(--navy);color:#fff;border-radius:12px;padding:.7rem 1rem;display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;box-shadow:var(--shadow)}
.timer b{font:700 1.4rem/1 var(--serif);font-variant-numeric:tabular-nums} .timer.low{background:var(--bad)}
.question{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem;margin-bottom:1rem}
.question .q-num{font:700 .78rem/1 var(--sans);letter-spacing:.1em;color:var(--gold-600);text-transform:uppercase;margin-bottom:.4rem;display:block}
.question label.opt{display:flex;gap:.7rem;padding:.6rem .8rem;border:1.5px solid var(--line);border-radius:10px;margin-top:.5rem;cursor:pointer;align-items:flex-start}
.question label.opt:has(input:checked){border-color:var(--navy);background:var(--gold-soft)}
.question label.opt.right{border-color:var(--ok);background:#e8f6ee} .question label.opt.wrong{border-color:var(--bad);background:#fdecea}
.score-ring{display:grid;place-items:center;width:140px;height:140px;border-radius:50%;margin:0 auto 1rem;background:conic-gradient(var(--c,var(--ok)) calc(var(--p)*1%),#e8ebf1 0)}
.score-ring>div{width:110px;height:110px;border-radius:50%;background:#fff;display:grid;place-items:center;font:700 1.7rem/1 var(--serif);color:var(--navy)}
.messages-body{white-space:pre-wrap;word-break:break-word}

/* Certificate (print friendly) */
.cert-page{background:#e9e6dc;min-height:100vh;padding:2rem 1rem}
.cert{width:min(1000px,100%);margin:0 auto;background:#fff;border:14px double var(--navy);padding:clamp(1.5rem,5vw,4rem);text-align:center;box-shadow:var(--shadow);position:relative}
.cert::before{content:"";position:absolute;inset:10px;border:2px solid var(--gold);pointer-events:none}
.cert h1{font-size:clamp(1.8rem,5vw,3.2rem);letter-spacing:.04em} .cert .name{font:italic 700 clamp(1.8rem,5vw,3rem)/1.2 var(--serif);color:var(--navy);margin:.6rem 0;border-bottom:2px solid var(--gold);display:inline-block;padding:0 1.5rem .3rem}
.cert .meta{display:flex;justify-content:space-around;gap:1rem;margin-top:2.5rem;flex-wrap:wrap;font-size:.9rem;color:var(--muted)}
.cert-actions{text-align:center;margin-bottom:1rem}
@media print{.cert-actions,.no-print{display:none!important} .cert-page{background:#fff;padding:0} .cert{box-shadow:none;border-width:10px;break-inside:avoid} @page{size:landscape;margin:12mm}}

@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* course builder & study */
.module>header h3{margin:0}.pop{display:flex;gap:.4rem;flex-wrap:wrap;padding:.6rem;margin-top:.4rem;background:#fff;border:1px solid var(--line);border-radius:8px;position:absolute;z-index:5;box-shadow:0 8px 24px rgba(15,39,66,.12)}
.inline-edit{position:relative}.inline-edit summary{list-style:none;cursor:pointer}.inline-edit summary::-webkit-details-marker{display:none}
.mod-study details{border:1px solid var(--line);border-radius:var(--radius);background:#fff;margin-bottom:.7rem}.mod-study summary{cursor:pointer;padding:.9rem 1rem;font-weight:700;display:flex;justify-content:space-between;gap:.6rem;align-items:center}
.mod-study .list{border-top:1px solid var(--line-2)}.sess{border-left:4px solid var(--gold,#c8a24a);padding:.5rem .8rem;margin:.5rem 0;background:#fbf8f1;border-radius:0 8px 8px 0}
.note-box{background:#f6f7fa;border-radius:8px;padding:.7rem .9rem}.faq details{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:600;padding:1rem 0}.faq details>div{padding:0 0 1rem}

/* ---- v1.4: search everything, sortable lists ---- */
.topsearch{position:relative;flex:1;max-width:34rem;margin:0} .topsearch input{width:100%;padding:.5rem 2.2rem .5rem .9rem;border-radius:99px;border:1px solid #3a5a86;background:#173a63;color:#fff;font-size:.92rem}
.topsearch input::placeholder{color:#b9c9e0} .topsearch input:focus{outline:2px solid var(--gold);background:#1c4575}
.topsearch kbd{position:absolute;right:.7rem;top:50%;transform:translateY(-50%);font:600 .72rem var(--sans);color:#b9c9e0;border:1px solid #4d6e9b;border-radius:5px;padding:0 .35rem;pointer-events:none}
.cmd{position:fixed;inset:0;background:rgba(10,27,48,.55);z-index:100;display:flex;justify-content:center;align-items:flex-start;padding:8vh 1rem 1rem}
.cmd[hidden]{display:none} body.cmd-open{overflow:hidden}
.cmd-box{background:#fff;width:min(42rem,100%);border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.35);overflow:hidden;display:flex;flex-direction:column;max-height:78vh}
.cmd-box>input{border:0;border-bottom:1px solid var(--line);padding:1rem 1.2rem;font-size:1.1rem;width:100%;border-radius:0;outline:0}
.cmd-list{overflow-y:auto;padding:.3rem 0;min-height:4rem}
.cmd-h{font:700 .7rem var(--sans);letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding:.7rem 1.2rem .25rem}
.cmd-row{display:flex;justify-content:space-between;gap:1rem;align-items:baseline;padding:.55rem 1.2rem;text-decoration:none;color:var(--ink)}
.cmd-row .cmd-t{font-weight:600} .cmd-row .cmd-s{font-size:.8rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:45%}
.cmd-row.on,.cmd-row:hover{background:var(--gold-soft)}
.cmd-none{padding:1rem 1.2rem;color:var(--muted)}
.cmd-foot{display:flex;gap:1rem;align-items:center;padding:.55rem 1.2rem;border-top:1px solid var(--line-2);font-size:.78rem;color:var(--muted);background:#faf9f6;flex-wrap:wrap}
.cmd-foot a{margin-left:auto} .cmd-foot a+a{margin-left:0}
.cmd kbd{font:600 .72rem var(--sans);border:1px solid var(--line);border-radius:5px;padding:0 .35rem;background:#fff;margin-right:.2rem}
.bigsearch{display:flex;gap:.6rem;margin-bottom:1.2rem} .bigsearch input{flex:1;font-size:1.1rem;padding:.8rem 1rem}
.chips{display:flex;gap:.5rem;flex-wrap:wrap} .chip{padding:.35rem .85rem;border-radius:99px;background:#fff;border:1px solid var(--line);text-decoration:none;font-weight:600;font-size:.88rem}
.chip:hover{background:var(--gold-soft)} .found .t{text-decoration:none} .found .t:hover{text-decoration:underline}
.alpha{display:flex;gap:.25rem;flex-wrap:wrap;margin-bottom:1rem;position:sticky;top:0;background:var(--paper);padding:.4rem 0;z-index:5}
.alpha a{min-width:2rem;text-align:center;padding:.25rem .5rem;border:1px solid var(--line);border-radius:8px;background:#fff;text-decoration:none;font-weight:700}
.alpha a:hover{background:var(--gold-soft)} .az-group[hidden],.az-item[hidden]{display:none}
.table th.sortable a{color:inherit;text-decoration:none;white-space:nowrap} .table th.sortable a:hover{color:var(--navy)}
.table th .arr{font-size:.7rem;opacity:.4;margin-left:.15rem} .table th.sorted{color:var(--navy)} .table th.sorted .arr{opacity:1;color:var(--gold-600)}
.list-meta{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;margin:.2rem 0 1rem;font-size:.88rem;color:var(--muted)}
.list-meta form{display:flex;gap:.4rem;align-items:center;margin:0} .list-meta select{width:auto;padding:.25rem .4rem;font-size:.85rem}
.toolbar .clear{font-size:.88rem;align-self:center}
.toolbar label.inl{display:flex;align-items:center;gap:.35rem;font-size:.85rem;color:var(--muted);white-space:nowrap}
.toolbar input[type=date]{width:auto}
@media (max-width:760px){.topsearch kbd{display:none}.app-top{flex-wrap:wrap}.topsearch{order:3;max-width:none;flex-basis:100%}}

/* v1.5 — pictures, library, news, faculty */
.grid-4{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.course-card .thumb{display:block;width:calc(100% + 2.8rem);margin:-1.4rem -1.4rem 1rem;max-width:none;height:150px;object-fit:cover;border-radius:10px 10px 0 0}
.book{display:block;text-decoration:none;color:inherit;transition:transform .15s}.book:hover{transform:translateY(-3px)}
.book img,.book .ph{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:6px;margin-bottom:.7rem;background:var(--line,#e5e7eb)}
.book h3{font-size:1rem;margin:0 0 .3rem}
.ph{display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.6rem;color:var(--navy,#0b2545);background:#e8edf5}
.post-card{display:block;text-decoration:none;color:inherit}.post-card img{width:calc(100% + 2.8rem);max-width:none;height:170px;object-fit:cover;margin:-1.4rem -1.4rem .8rem;border-radius:10px 10px 0 0}
.person{text-align:center;text-decoration:none;color:inherit}.avatar-lg{width:112px;height:112px;border-radius:50%;object-fit:cover;margin:0 auto .8rem;display:block}
.avatar-lg.ph{font-size:2rem}
.side-card ul.plain{list-style:none;padding:0;margin:0}.side-card ul.plain li{padding:.5rem 0;border-bottom:1px solid var(--line,#e5e7eb)}

/* v1.6 help centre + tickets */
.suggest{background:#f3f7fc;border:1px solid #d5e1f0;border-radius:8px;padding:.8rem 1rem;margin:.4rem 0 1rem}
.suggest ul{list-style:none;margin:.4rem 0 0;padding:0}.suggest li{padding:.25rem 0}.suggest summary{cursor:pointer;font-weight:600}
.msg-staff{border-left:4px solid var(--gold,#b8933f)}

/* v1.7 articles, writer editor, communities */
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.2rem}
.chip{display:inline-block;padding:.35rem .8rem;border:1px solid var(--line,#d9dee7);border-radius:999px;color:inherit;text-decoration:none;font-size:.9rem;background:#fff}
.chip.on,.chip:hover{background:var(--navy,#0f2742);color:#fff;border-color:var(--navy,#0f2742)}
.chip small{opacity:.7}
.article{max-width:760px}
.article .lead{font-size:1.15rem;color:#445}
.art-cover{width:100%;border-radius:8px;margin-bottom:1.2rem}
.art-fig{margin:1.4rem 0}.art-fig img,.art-fig video{width:100%;border-radius:8px;display:block}
.art-fig figcaption{font-size:.85rem;color:#667;margin-top:.4rem}
.art-video{position:relative}.art-video iframe{width:100%;aspect-ratio:16/9;border:0;border-radius:8px;display:block}
.article blockquote{border-left:4px solid var(--gold,#b8933f);margin:1.4rem 0;padding:.4rem 1.2rem;background:#faf7ef;border-radius:0 8px 8px 0}
.article blockquote cite{display:block;font-size:.85rem;color:#667;margin-top:.3rem}
.art-file,.art-link{margin:1rem 0}
.block{border:1px solid var(--line,#d9dee7);border-radius:8px;padding:.8rem;margin-bottom:.8rem;background:#fbfcfe}
.block-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}
.block input[type=text],.block input[type=url],.block textarea{width:100%;margin-top:.4rem}
.block-tools .btn{padding:.1rem .5rem}
.add-blocks{display:flex;flex-wrap:wrap;gap:.4rem;align-items:center;margin-top:.5rem}
.checks{display:grid;grid-template-columns:repeat(auto-fill,minmax(14rem,1fr));gap:.4rem;margin:.5rem 0 1rem}

/* ---- helper C: logo size, share buttons, curriculum accordion, article reactions/comments, library reader ---- */
.site-header .container{min-height:84px}
.brand{gap:.85rem}
.brand svg{width:56px;height:56px}
.brand b{font-size:1.35rem}
.app-top{padding:.55rem 1.2rem}
.app-top .brand svg{width:54px;height:54px;background:#fff;border-radius:12px;padding:4px;box-shadow:0 1px 4px rgba(0,0,0,.25)}
.app-top .brand b{font-size:1.2rem}
@media(max-width:880px){
  .site-header .container{min-height:68px}
  .brand svg{width:46px;height:46px}
  .brand b{font-size:1.1rem}
  .app-top .brand svg{width:44px;height:44px}
  .app-top .brand b{font-size:1.05rem}
}
@media(max-width:420px){.brand small{letter-spacing:.08em;font-size:.65rem}}

.share{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center;margin:0}
.side-share{margin-top:1.4rem;padding-top:1.1rem;border-top:1px solid var(--line)}
.side-share .share .btn{flex:0 1 auto}
.btn-block + .side-share,.alert + .btn-block + .side-share{margin-top:1.4rem}

.curriculum{display:grid;gap:.55rem}
.curr-module{border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden}
.curr-module summary{cursor:pointer;padding:.8rem 1rem;font-weight:700;display:flex;justify-content:space-between;gap:1rem;align-items:center;list-style:none}
.curr-module summary::-webkit-details-marker{display:none}
.curr-module summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--navy-700)}
.curr-module[open] summary::after{content:"\2212"}
.curr-module[open] summary{background:var(--gold-soft)}
.curr-title{flex:1}
.curr-body{padding:.7rem 1.2rem 1rem}
.curr-body ol{margin:.2rem 0 0;padding-left:1.3rem}

.reactions{margin-top:2rem;padding-top:1.2rem;border-top:1px solid var(--line)}
.react-row{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center;margin:0}
.react-row .count-n{display:inline-block;min-width:1.2em;font-weight:700}
.comments{margin-top:1.5rem}
.comment{padding:.8rem 0;border-bottom:1px solid var(--line)}
.comment p{margin:.3rem 0 .4rem}
.comment.is-hidden{opacity:.65}
.comment-form{margin-top:1rem}
.related-articles h2{margin-bottom:1rem}

.contact-form{max-width:640px}
.reader-bar{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:.8rem}
.reader-frame{width:100%;height:78vh;min-height:460px;border:1px solid var(--line);border-radius:8px;background:#fff}

/* helper E: roomy note / reason boxes with a character counter */
textarea.big-note{width:100%;min-height:9rem;resize:vertical;line-height:1.5}
.char-count{text-align:right;margin-top:.2rem}
.char-count.near{color:var(--warn,#8a5a00);font-weight:700}

/* helper P: certificate prints on exactly one landscape page */
@media print{
  @page{size:A4 landscape;margin:0}
  html,body.cert-page{margin:0;padding:0;background:#fff;width:297mm;height:210mm;overflow:hidden}
  body.cert-page{display:block;min-height:0;padding:0}
  .cert-page .cert{box-sizing:border-box;width:281mm;height:194mm;margin:8mm 8mm;padding:5mm 16mm;border-width:9px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;overflow:hidden;break-inside:avoid;page-break-inside:avoid;page-break-after:avoid}
  .cert-page .cert::before{inset:6px}
  .cert-page .cert>div[style*="width:70px"]{width:46px!important;margin:0 auto .3rem!important}
  .cert-page .cert h1{font-size:2.2rem;margin:.1rem 0}
  .cert-page .cert h2{font-size:1.45rem!important;margin:.2rem 0}
  .cert-page .cert p{margin:.25rem 0}
  .cert-page .cert .name{font-size:2.1rem;margin:.2rem 0;padding:0 1.5rem .15rem}
  .cert-page .cert .meta{margin-top:.9rem;flex-wrap:nowrap}
  .cert-page .cert #cert-verify{margin-top:.7rem!important;flex-wrap:nowrap!important;break-inside:avoid;page-break-inside:avoid}
  .cert-page .cert #cert-verify svg{width:24mm;height:24mm}
  .cert-page .cert #cert-verify p{font-size:.72rem}
  .cert-actions,.no-print{display:none!important}
}

/* helper P: compact dashboard panels, notification senders, bell dropdown */
.dash-cols{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:1.2rem;align-items:start}
.dash-cols .dash-courses{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.dash-side{display:flex;flex-direction:column;gap:1rem;min-width:0}
@media(max-width:1000px){.dash-cols{grid-template-columns:minmax(0,1fr)}}
.dash-panel{padding:0;overflow:hidden}
.dash-panel>summary{display:flex;justify-content:space-between;align-items:center;gap:.6rem;padding:.7rem 1rem;cursor:pointer;font-weight:700;list-style:none;color:var(--navy)}
.dash-panel>summary::-webkit-details-marker{display:none}
.dash-panel>summary::after{content:"\25BE";margin-left:auto;font-size:.8rem;color:var(--muted)}
.dash-panel:not([open])>summary::after{content:"\25B8"}
.dash-panel .count{background:#c0392b;color:#fff;border-radius:999px;padding:0 .5rem;font-size:.75rem;font-weight:700;margin-left:.2rem}
.dp-row{display:flex;flex-direction:column;gap:.1rem;padding:.5rem 1rem;border-top:1px solid var(--line-2,#e6e9ee);min-width:0}
.dp-t{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;text-decoration:none}
.dp-t.is-new{font-weight:800}
.dp-s,.notif-from{font-size:.78rem;color:var(--muted)}
.dp-b{font-size:.82rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}
.dp-empty{padding:.6rem 1rem;color:var(--muted);font-size:.88rem;border-top:1px solid var(--line-2,#e6e9ee)}
.dp-more{padding:.5rem 1rem;border-top:1px solid var(--line-2,#e6e9ee);font-size:.88rem;font-weight:600}
.notif-from{font-weight:600}
.bell-wrap{position:relative;display:inline-flex}
.bell-pop{position:absolute;right:0;top:calc(100% + .5rem);width:min(360px,92vw);background:#fff;color:#1b2430;border:1px solid var(--line,#d8dde5);border-radius:10px;box-shadow:0 12px 32px rgba(15,39,66,.22);z-index:60;overflow:hidden}
.bell-pop[hidden]{display:none}
.bell-pop h3{margin:0;padding:.6rem .9rem;font-size:.95rem;border-bottom:1px solid var(--line-2,#e6e9ee)}
.bell-pop a.bp-i{display:block;padding:.5rem .9rem;border-bottom:1px solid var(--line-2,#e6e9ee);text-decoration:none;color:inherit;min-width:0}
.bell-pop a.bp-i:hover,.bell-pop a.bp-i:focus-visible{background:#f3f5f8}
.bell-pop .bp-t{display:block;font-weight:600;font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bell-pop .bp-t.is-new{font-weight:800}
.bell-pop .bp-s{display:block;font-size:.75rem;color:#5b6675}
.bell-pop .bp-all{display:block;padding:.6rem .9rem;font-weight:700;font-size:.88rem}
.bell-pop .bp-empty{padding:.8rem .9rem;color:#5b6675;font-size:.88rem}

/* helper Q: gradebook */
.gb-table th,.gb-table td{vertical-align:top}
.gb-table .gb-h{min-width:9rem}
.gb-tag{display:block;font-size:.7rem;font-weight:700;letter-spacing:.02em;text-transform:uppercase;color:var(--muted)}
.gb-exam .gb-tag{color:#8a3b12}.gb-assignment .gb-tag{color:#1d5c8f}.gb-other .gb-tag{color:#5b3a8a}
.gb-draft{opacity:.55;background:repeating-linear-gradient(135deg,transparent 0 6px,rgba(0,0,0,.03) 6px 12px)}
.gb-state.gb-none{color:var(--muted)}.gb-state.gb-submitted{color:#8a5a00;font-weight:600}.gb-state.gb-graded{color:var(--ok,#1a7f4b)}
.gb-cell input.grade{min-width:4.5rem}

/* helper R: content-type design tokens (colour + icon per type), curriculum layout */
:root{
  --ct-module-fg:#3a3fa8; --ct-module-bg:#e8e9fb; --ct-module-bar:#4a50c8; --ct-module-btn:#3a3fa8; --ct-module-btnfg:#fff;
  --ct-lesson-fg:#0b6b5c; --ct-lesson-bg:#def4ee; --ct-lesson-bar:#12937e; --ct-lesson-btn:#0b6b5c; --ct-lesson-btnfg:#fff;
  --ct-assignment-fg:#8a4b00; --ct-assignment-bg:#fdecd0; --ct-assignment-bar:#e08a00; --ct-assignment-btn:#f0a020; --ct-assignment-btnfg:#1f1300;
  --ct-exam-fg:#a3153f; --ct-exam-bg:#fde6ec; --ct-exam-bar:#c8204f; --ct-exam-btn:#a3153f; --ct-exam-btnfg:#fff;
  --ct-live-fg:#1550a8; --ct-live-bg:#e1ecfb; --ct-live-bar:#2f74d0; --ct-live-btn:#1550a8; --ct-live-btnfg:#fff;
  --ct-resource-fg:#4a5565; --ct-resource-bg:#eceef2; --ct-resource-bar:#8a94a3; --ct-resource-btn:#4a5565; --ct-resource-btnfg:#fff;
  --ct-new-fg:#0d5e2c; --ct-new-bg:#d7f3e1;
}
.ct-module{--fg:var(--ct-module-fg);--bg:var(--ct-module-bg);--bar:var(--ct-module-bar);--btn:var(--ct-module-btn);--btnfg:var(--ct-module-btnfg)}
.ct-lesson{--fg:var(--ct-lesson-fg);--bg:var(--ct-lesson-bg);--bar:var(--ct-lesson-bar);--btn:var(--ct-lesson-btn);--btnfg:var(--ct-lesson-btnfg)}
.ct-assignment{--fg:var(--ct-assignment-fg);--bg:var(--ct-assignment-bg);--bar:var(--ct-assignment-bar);--btn:var(--ct-assignment-btn);--btnfg:var(--ct-assignment-btnfg)}
.ct-exam{--fg:var(--ct-exam-fg);--bg:var(--ct-exam-bg);--bar:var(--ct-exam-bar);--btn:var(--ct-exam-btn);--btnfg:var(--ct-exam-btnfg)}
.ct-live{--fg:var(--ct-live-fg);--bg:var(--ct-live-bg);--bar:var(--ct-live-bar);--btn:var(--ct-live-btn);--btnfg:var(--ct-live-btnfg)}
.ct-resource{--fg:var(--ct-resource-fg);--bg:var(--ct-resource-bg);--bar:var(--ct-resource-bar);--btn:var(--ct-resource-btn);--btnfg:var(--ct-resource-btnfg)}
.ct-chip{display:inline-grid;place-items:center;width:2rem;height:2rem;flex:0 0 2rem;border-radius:8px;background:var(--bg);color:var(--fg)}
.ct-svg{display:block}
.ct-pill{display:inline-flex;align-items:center;padding:.1rem .5rem;border-radius:999px;font:700 .7rem/1.4 var(--sans);letter-spacing:.03em;text-transform:uppercase;background:var(--bg);color:var(--fg);white-space:nowrap}
.ct-new{display:inline-flex;align-items:center;padding:.1rem .5rem;border-radius:999px;font:700 .7rem/1.4 var(--sans);background:var(--ct-new-bg);color:var(--ct-new-fg);white-space:nowrap}
.ct-row{border-left:4px solid var(--bar)}
.ct-title-line{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}
.ct-t{font-weight:700;color:var(--ink)}
a.ct-t{text-decoration:none} a.ct-t:hover{text-decoration:underline;color:var(--fg)}
.ct-inline-chip{display:inline-flex;vertical-align:middle;margin-right:.45rem}
.ct-inline-chip .ct-chip{width:1.7rem;height:1.7rem;flex-basis:1.7rem;border-radius:7px}
.ct-legend{display:flex;gap:.4rem 1rem;flex-wrap:wrap;list-style:none;margin:0 0 .9rem;padding:0;font-size:.82rem;color:var(--muted)}
.ct-legend li{display:inline-flex;align-items:center;gap:.4rem}
.ct-legend .ct-chip{width:1.4rem;height:1.4rem;flex-basis:1.4rem;border-radius:6px}
.ct-legend .ct-svg{width:.9rem;height:.9rem}
/* four same-size action buttons */
.ct-actions{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.6rem}
.ct-btn{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;box-sizing:border-box;width:100%;min-height:2.7rem;padding:.55rem .9rem;border:0;border-radius:8px;background:var(--btn);color:var(--btnfg);font:700 .95rem/1.2 var(--sans);text-decoration:none;cursor:pointer;list-style:none}
.ct-btn::-webkit-details-marker{display:none}
.ct-btn:hover{filter:brightness(.92);color:var(--btnfg)}
.ct-btn:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.ct-btn-sm{width:auto;min-height:2.4rem;padding:.45rem .9rem;font-size:.9rem}
.ct-add{position:relative}
.ct-add>summary{width:100%}
.ct-add[open]>summary{filter:brightness(.92)}
.ct-add .pop{width:min(22rem,86vw);flex-direction:column;left:0;margin-top:.4rem}
.ct-add .pop label{font-weight:600;font-size:.85rem}
.ct-add .pop input{width:100%}
.ct-panel{overflow:visible}
.ct-panel>header:first-child{border-radius:var(--radius) var(--radius) 0 0}
.ct-list{list-style:none;margin:0;padding:0}
.ct-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.6rem 1rem;align-items:center;padding:.65rem 1rem;border-bottom:1px solid var(--line-2);border-left:4px solid var(--bar);background:#fff}
.ct-item:last-child{border-bottom:0}
.ct-main{display:flex;gap:.75rem;align-items:center;min-width:0}
.ct-main>div{min-width:0}
.ct-meta{font-size:.82rem;color:var(--muted);margin-top:.1rem}
.ct-tools{display:flex;gap:.4rem;align-items:center;justify-content:flex-end;flex-wrap:wrap}
.ct-move{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.ct-move form{display:flex;margin:0}
.ct-move button{border:0;background:#fff;width:2.1rem;height:2.2rem;cursor:pointer;font-size:1rem;color:var(--navy)}
.ct-move form+form button{border-left:1px solid var(--line)}
.ct-move button:hover{background:var(--gold-soft)}
.ct-edit{display:inline-flex;align-items:center;min-height:2.2rem;padding:.3rem .85rem;border:1px solid var(--navy);border-radius:8px;background:#fff;color:var(--navy);font:600 .88rem/1 var(--sans);text-decoration:none}
.ct-edit:hover{background:var(--navy);color:#fff}
.ct-menu{position:relative}
.ct-menu>summary{list-style:none;cursor:pointer;display:inline-grid;place-items:center;width:2.2rem;height:2.2rem;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:1.2rem;line-height:1;color:var(--navy);user-select:none}
.ct-menu>summary::-webkit-details-marker{display:none}
.ct-menu>summary:hover,.ct-menu[open]>summary{background:var(--gold-soft)}
.ct-menu-panel{position:absolute;right:0;top:calc(100% + .25rem);z-index:30;min-width:13rem;padding:.3rem;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(15,39,66,.16)}
.ct-menu-panel form{margin:0}
.ct-mi{display:block;width:100%;box-sizing:border-box;padding:.5rem .7rem;border:0;border-radius:6px;background:none;text-align:left;font:600 .9rem/1.3 var(--sans);color:var(--ink);text-decoration:none;cursor:pointer}
.ct-mi:hover{background:var(--gold-soft);color:var(--ink)}
.ct-mi.danger{color:var(--bad)}
.ct-sub>summary{list-style:none}.ct-sub>summary::-webkit-details-marker{display:none}
.ct-sub form{display:flex;flex-direction:column;gap:.4rem;padding:.3rem .4rem .5rem}
.ct-sub input{width:100%}
.ct-mod{position:relative;margin-bottom:.9rem;border:1px solid var(--line);border-radius:var(--radius);background:#fff;border-top:4px solid var(--bar)}
.ct-mod>details>summary{cursor:pointer;display:flex;gap:.75rem;align-items:center;padding:.8rem 12.5rem .8rem 1rem;background:var(--bg);border-radius:var(--radius) var(--radius) 0 0;list-style:none}
.ct-mod>details>summary::-webkit-details-marker{display:none}
.ct-mod>details>summary::before{content:"\25B8";color:var(--fg);font-size:1rem;transition:transform .12s}
.ct-mod>details[open]>summary::before{transform:rotate(90deg)}
.ct-mod h3{margin:0;font-size:1.05rem;color:var(--fg);font-family:var(--sans)}
.ct-mod-tools{position:absolute;top:.6rem;right:.8rem;display:flex;gap:.4rem;align-items:center;z-index:2}
.ct-mod-sub{font-size:.82rem;color:var(--muted)}
.ct-mod .empty{padding:.9rem 1rem}
.ct-group-head{display:flex;gap:.75rem;align-items:center;padding:.8rem 1rem;background:var(--bg);border-radius:var(--radius) var(--radius) 0 0}
.ct-bar-panel .body{display:grid;gap:.8rem}
.ct-bar-panel .ct-legend{margin:0}
.ct-help{margin:0;font-size:.85rem;color:var(--muted)}
.ct-exam-note{padding:.6rem 1rem;font-size:.85rem;color:var(--muted);border-bottom:1px solid var(--line-2)}
.ct-stat{font-size:.82rem;color:var(--muted)}
@media (max-width:720px){
  .ct-actions{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ct-item{grid-template-columns:minmax(0,1fr)}
  .ct-tools{justify-content:flex-start}
  .ct-mod>details>summary{padding-right:1rem}
  .ct-mod-tools{position:static;padding:.5rem 1rem;border-bottom:1px solid var(--line-2);background:#fff;border-radius:var(--radius) var(--radius) 0 0}
  .ct-menu-panel{right:auto;left:0}
}
@media (max-width:380px){.ct-actions{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){.ct-mod>details>summary::before{transition:none}}
.mod-study details.ct-module{border-top:4px solid var(--bar)}
.mod-study details.ct-module>summary{background:var(--bg);border-radius:8px 8px 0 0;color:var(--fg)}
.mod-study details.ct-module:not([open])>summary{border-radius:8px}
.mod-study .ct-row .ct-main>div{flex:1}
.ct-row .ct-pill{margin-left:.3rem;vertical-align:middle}
.ct-row .ct-new{margin-left:.3rem;vertical-align:middle}
.live-panel>header h3{margin:0}
ul.ct-plain{list-style:none;margin:.5rem 0 0;padding:0;display:grid;gap:.35rem}
ul.ct-plain li{display:flex;gap:.6rem;align-items:center;padding:.3rem .6rem;background:#fff;border-radius:0 6px 6px 0}
ul.ct-plain .ct-chip{width:1.6rem;height:1.6rem;flex-basis:1.6rem;border-radius:6px}
ul.ct-plain .ct-svg{width:.95rem;height:.95rem}
.curr-module.ct-exam{border-top:4px solid var(--bar)}
.curr-module.ct-exam .curr-body{padding-top:.8rem}
.curr-title.ct-title-line{flex-wrap:nowrap}

/* helper S: report cards */
.rc-actions{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.rc-grid{margin-left:.4rem;font-size:.78rem}
#rc-list td form.inline{display:inline}
@media (max-width:640px){.rc-actions .btn{flex:1 1 100%;text-align:center}}

/* helper U: hide/show, preview, course chat */
.ct-vis{display:inline-block;margin:0}
.ct-vis-btn{display:inline-flex;align-items:center;gap:.35rem;border:1px solid var(--line,#d9dee6);border-radius:999px;padding:.12rem .65rem;font:700 .72rem/1.5 var(--sans);cursor:pointer;background:#fff;min-height:1.7rem}
.ct-vis-btn .dot{width:.55rem;height:.55rem;border-radius:50%;background:currentColor}
.ct-vis-btn.is-on{color:var(--ok);border-color:#b9e0c9;background:#e3f4ea}
.ct-vis-btn.is-off{color:#5d6b7c;border-color:#c9d0da;background:#eceef2}
.ct-vis-btn:hover,.ct-vis-btn:focus-visible{box-shadow:0 0 0 2px rgba(15,39,66,.25)}
.ct-vis-note{font-size:.72rem;color:var(--muted,#667);margin-left:.3rem}
.ct-item.is-hidden,.ct-row.is-hidden,.ct-mod.is-hidden>details,details.ct-module.is-hidden{opacity:.62}
.ct-item.is-hidden .ct-t,.ct-row.is-hidden .t{color:var(--muted,#667)}
.ct-mod-tools .ct-vis{margin-right:.4rem}
.pv-banner{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;background:#fff7e0;border:1px solid #e8cf86;color:#5a4410;border-radius:10px;padding:.7rem 1rem;margin-bottom:1rem}
.pv-hidden{margin-left:.3rem}
.pv-edit{margin-left:.3rem}
.chat-more{text-align:center;padding:.2rem 0 .6rem;font-size:.85rem}
.chat-msg .who .badge{font-size:.68rem}