/* ==========================================================================
   Pentarch Campus — design system
   Brand colours are injected as --brand, --brand-2, --accent, --rail from Settings.
   ========================================================================== */
:root{
  --brand:#73263B; --brand-2:#A1334C; --accent:#D9AE2B; --rail:#2B0F18;
  --ink:#231A1E; --ink-2:#4A3E43; --muted:#7D6F74; --line:#ECE3DF; --line-2:#F3ECE8;
  --bg:#FAF6F3; --surface:#FFFFFF; --soft:#F7F0EC; --tint:color-mix(in srgb,var(--brand) 7%,#fff);
  --green:#1F8A5B; --green-bg:#E7F5EE; --amber:#B7791F; --amber-bg:#FDF3E1; --red:#C2410C; --red-bg:#FDECE6;
  --blue:#2563A8; --blue-bg:#E8F0FA; --violet:#6D3FB3; --violet-bg:#F1EBFA; --grey-bg:#F1EEEC;
  --r:12px; --r-sm:8px; --r-lg:18px;
  --sh-1:0 1px 2px rgba(35,26,30,.05),0 1px 3px rgba(35,26,30,.06);
  --sh-2:0 6px 24px -8px rgba(35,26,30,.18);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --display:'Fraunces',Georgia,'Times New Roman',serif;
  --side-w:252px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:15px/1.55 var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;color:var(--ink)}
h1{font:600 28px/1.15 var(--display);letter-spacing:-.01em}
h2{font:600 21px/1.25 var(--display)}
h3{font-size:16px;font-weight:650}
h4{font-size:14px;font-weight:650}
p{margin:0 0 1em}
hr{border:0;border-top:1px solid var(--line);margin:20px 0}
small,.small{font-size:13px}
.muted{color:var(--muted)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}
.nowrap{white-space:nowrap}
.right{text-align:right}.center{text-align:center}
.m0{margin:0}.mt{margin-top:16px}.mt2{margin-top:28px}.mb{margin-bottom:16px}
.i{width:18px;height:18px;flex:none;vertical-align:middle}
.hide{display:none!important}
.inline{display:inline}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.row.between{justify-content:space-between}
.grow{flex:1}
.stack>*+*{margin-top:16px}

/* ---------- app shell ---------- */
.app{min-height:100vh}
.side{position:fixed;inset:0 auto 0 0;width:var(--side-w);background:linear-gradient(180deg,var(--rail),color-mix(in srgb,var(--rail) 82%,var(--brand)));color:#F4E9EC;display:flex;flex-direction:column;z-index:40;transition:transform .25s}
.side-brand{display:block;padding:18px 20px 14px;border-bottom:1px solid rgba(255,255,255,.08)}
.side-brand img{height:52px;width:auto}
.side-nav{flex:1;overflow:auto;padding:10px 10px 20px;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent}
.side-g{font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:rgba(244,233,236,.45);padding:16px 12px 6px;font-weight:600}
.side-nav a{display:flex;align-items:center;gap:11px;padding:9px 12px;border-radius:9px;color:rgba(244,233,236,.82);font-weight:500;font-size:14.5px;position:relative}
.side-nav a:hover{background:rgba(255,255,255,.07);color:#fff;text-decoration:none}
.side-nav a.on{background:rgba(255,255,255,.12);color:#fff}
.side-nav a.on::before{content:"";position:absolute;left:-10px;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;background:var(--accent)}
.side-nav .i{width:19px;height:19px;opacity:.9}
.cnt{margin-left:auto;background:var(--accent);color:#2a1b00;font-size:11px;font-weight:700;padding:1px 7px;border-radius:20px}
.side-foot{border-top:1px solid rgba(255,255,255,.08);padding:12px}
.side-me{display:flex;align-items:center;gap:10px;color:#fff;padding:6px;border-radius:10px}
.side-me:hover{background:rgba(255,255,255,.07);text-decoration:none}
.side-me span{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.side-me b{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-me small{color:rgba(244,233,236,.55);font-size:12px}
.shell{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.top{position:sticky;top:0;z-index:30;height:60px;display:flex;align-items:center;gap:14px;padding:0 28px;background:rgba(250,246,243,.86);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.crumbs{display:flex;align-items:center;gap:6px;font-size:13.5px;color:var(--muted);min-width:0;overflow:hidden;white-space:nowrap}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--brand)}
.crumbs span{color:var(--ink);font-weight:550;overflow:hidden;text-overflow:ellipsis}
.crumbs .i{width:14px;height:14px;opacity:.5}
.top-r{margin-left:auto;display:flex;align-items:center;gap:8px}
.icon-btn{position:relative;display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px;border:0;background:transparent;color:var(--ink-2);cursor:pointer}
.icon-btn:hover{background:var(--soft);text-decoration:none}
.icon-btn .dot{position:absolute;top:4px;right:3px;min-width:17px;height:17px;padding:0 4px;border-radius:9px;background:var(--brand);color:#fff;font-size:10px;font-weight:700;display:grid;place-items:center;border:2px solid var(--bg)}
.chip-link{display:inline-flex;align-items:center;gap:7px;padding:7px 12px;border-radius:30px;background:var(--surface);border:1px solid var(--line);color:var(--ink-2);font-weight:550;font-size:13.5px}
.chip-link:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}
.me-menu{position:relative}
.me-menu summary{list-style:none;cursor:pointer;border-radius:50%}
.me-menu summary::-webkit-details-marker{display:none}
.menu{position:absolute;right:0;top:46px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh-2);min-width:230px;padding:6px;z-index:50}
.menu-h{padding:10px 12px;border-bottom:1px solid var(--line);margin-bottom:6px;display:flex;flex-direction:column}
.menu-h small{color:var(--muted)}
.menu a,.menu button{display:flex;gap:10px;align-items:center;width:100%;padding:9px 12px;border:0;background:none;font:inherit;color:var(--ink);border-radius:8px;cursor:pointer;text-align:left}
.menu a:hover,.menu button:hover{background:var(--soft);text-decoration:none}
.page{flex:1;padding:28px 32px 48px;max-width:1360px;width:100%}
.page.wide{max-width:none}
.page.narrow{max-width:880px}
.page-h{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.page-h h1{margin:0}
.page-h .sub{margin:6px 0 0;color:var(--muted)}
.eyebrow{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);font-weight:650;margin-bottom:6px}
.page-actions{display:flex;gap:8px;flex-wrap:wrap}
.foot{padding:18px 32px;color:var(--muted);font-size:12.5px;border-top:1px solid var(--line)}
.scrim{display:none}
.only-m{display:none}

/* ---------- flash ---------- */
.flash{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:10px;margin-bottom:16px;border:1px solid;font-size:14.5px}
.flash>div{flex:1}
.flash.success{background:var(--green-bg);border-color:#bfe5d1;color:#145c3d}
.flash.error{background:var(--red-bg);border-color:#f6c9b8;color:#8a2d06}
.flash.info{background:var(--blue-bg);border-color:#c9daf0;color:#1c4b80}
.flash.warning{background:var(--amber-bg);border-color:#f2d9a8;color:#7a4f0f}
.flash-x{border:0;background:none;color:inherit;opacity:.6;cursor:pointer;padding:0}

/* ---------- cards ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh-1);margin-bottom:20px;min-width:0}
.card-h{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line-2)}
.card-h h3{margin:0;display:flex;align-items:center;gap:8px;font-size:15px}
.card-h h3 .i{color:var(--brand)}
.card-b{padding:18px}
.card-b.flush{padding:0}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;align-items:start}
.split-l{display:grid;grid-template-columns:260px minmax(0,1fr);gap:24px;align-items:start}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:22px}
.stat{display:flex;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:var(--sh-1);color:var(--ink)}
a.stat:hover{border-color:color-mix(in srgb,var(--brand) 40%,var(--line));text-decoration:none}
.stat-ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--tint);color:var(--brand)}
.stat-ic.green{background:var(--green-bg);color:var(--green)}.stat-ic.amber{background:var(--amber-bg);color:var(--amber)}.stat-ic.blue{background:var(--blue-bg);color:var(--blue)}.stat-ic.red{background:var(--red-bg);color:var(--red)}.stat-ic.violet{background:var(--violet-bg);color:var(--violet)}
.stat-ic .i{width:22px;height:22px}
.stat-v{font:650 24px/1.1 var(--font);letter-spacing:-.01em}
.stat-l{color:var(--muted);font-size:13px;margin-top:2px}
.stat-s{font-size:12px;color:var(--muted);margin-top:4px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 16px;border-radius:10px;border:1px solid transparent;font:600 14px/1.2 var(--font);cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,box-shadow .15s;text-decoration:none!important}
.btn .i{width:17px;height:17px}
.btn.primary{background:var(--brand);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.15) inset,0 2px 6px -2px color-mix(in srgb,var(--brand) 60%,transparent)}
.btn.primary:hover{background:color-mix(in srgb,var(--brand) 88%,#000)}
.btn.accent{background:var(--accent);color:#2a1b00}
.btn.accent:hover{background:color-mix(in srgb,var(--accent) 88%,#000)}
.btn.ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{border-color:color-mix(in srgb,var(--brand) 45%,var(--line));color:var(--brand)}
.btn.soft{background:var(--tint);color:var(--brand)}
.btn.soft:hover{background:color-mix(in srgb,var(--brand) 13%,#fff)}
.btn.danger{background:var(--red-bg);color:var(--red);border-color:#f6c9b8}
.btn.danger:hover{background:#fbd9cc}
.btn.success{background:var(--green);color:#fff}
.btn.link{background:none;color:var(--brand);padding:4px 6px}
.btn.sm{padding:6px 11px;font-size:13px;border-radius:8px}
.btn.lg{padding:13px 22px;font-size:15.5px;border-radius:12px}
.btn.block{width:100%}
.btn[disabled]{opacity:.5;pointer-events:none}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ---------- forms ---------- */
.form{display:grid;gap:16px}
.form-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px}
.form-grid>.field{grid-column:span 6}
.form-grid>.field.full,.form-grid>.full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field>label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.field.req>label::after{content:" *";color:var(--brand-2)}
input[type=text],input[type=email],input[type=tel],input[type=number],input[type=date],input[type=datetime-local],input[type=time],input[type=password],input[type=search],input[type=url],input[type=month],select,textarea{width:100%;padding:10px 12px;border:1px solid #DDD2CD;border-radius:9px;background:#fff;font:inherit;color:var(--ink);transition:border-color .15s,box-shadow .15s}
textarea{resize:vertical;min-height:90px}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 16%,transparent)}
input[type=file]{font-size:14px;padding:8px;border:1px dashed #D4C6C0;border-radius:9px;background:var(--soft);width:100%}
select[multiple]{min-height:120px}
.help{font-size:12.5px;color:var(--muted)}
.field-err{font-size:12.5px;color:var(--red);font-weight:550}
.check{display:flex;align-items:flex-start;gap:9px;cursor:pointer;font-size:14.5px}
.check input{width:17px;height:17px;margin-top:2px;accent-color:var(--brand)}
.radios{display:flex;gap:16px;flex-wrap:wrap}
.input-pre{display:flex;align-items:stretch}
.input-pre span{display:grid;place-items:center;padding:0 10px;background:var(--soft);border:1px solid #DDD2CD;border-right:0;border-radius:9px 0 0 9px;font-size:13px;color:var(--muted);font-weight:600}
.input-pre input{border-radius:0 9px 9px 0}
fieldset{border:1px solid var(--line);border-radius:var(--r);padding:16px 18px 18px;margin:0}
legend{font-weight:650;padding:0 6px;color:var(--brand);font-size:14px}
.form-actions{display:flex;gap:10px;justify-content:flex-end;padding-top:6px;flex-wrap:wrap}
.search{position:relative;display:flex;align-items:center}
.search .i{position:absolute;left:11px;color:var(--muted);width:16px}
.search input{padding-left:34px;min-width:240px}
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.filters select,.filters input{width:auto;min-width:150px}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.t{width:100%;border-collapse:collapse;font-size:14px}
.t th{text-align:left;font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);font-weight:650;padding:11px 14px;border-bottom:1px solid var(--line);background:#FCFAF8;white-space:nowrap}
.t td{padding:12px 14px;border-bottom:1px solid var(--line-2);vertical-align:middle}
.t tr:last-child td{border-bottom:0}
.t tbody tr:hover td{background:#FDFBFA}
.t .num{text-align:right;font-variant-numeric:tabular-nums}
.t tfoot td{font-weight:650;background:#FCFAF8;border-top:1px solid var(--line)}
.t .who{display:flex;align-items:center;gap:10px}
.t .who b{display:block;font-weight:600}
.t .who small{color:var(--muted)}
.t input[type=number]{width:96px;padding:7px 9px}
.t.compact td{padding:8px 12px}

/* ---------- pills, avatars ---------- */
.pill{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:30px;font-size:12px;font-weight:600;white-space:nowrap;background:var(--grey-bg);color:var(--ink-2)}
.pill.green{background:var(--green-bg);color:var(--green)}
.pill.amber{background:var(--amber-bg);color:var(--amber)}
.pill.red{background:var(--red-bg);color:var(--red)}
.pill.violet{background:var(--violet-bg);color:var(--violet)}
.pill.blue{background:var(--blue-bg);color:var(--blue)}
.pill.brand{background:var(--tint);color:var(--brand)}
.av{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;font-weight:650;font-size:13.5px;color:#fff;flex:none;overflow:hidden;background:var(--brand)}
.av img{width:100%;height:100%;object-fit:cover}
.av.sm{width:32px;height:32px;font-size:12px}
.av.lg{width:72px;height:72px;font-size:24px}
.av.xl{width:108px;height:108px;font-size:34px}
.av.c0{background:#8B3A52}.av.c1{background:#A1601F}.av.c2{background:#2F7A63}.av.c3{background:#4E5BA6}.av.c4{background:#7A4AA3}.av.c5{background:#B2455A}

/* ---------- misc components ---------- */
.empty{text-align:center;padding:44px 20px;color:var(--muted)}
.empty .i{width:42px;height:42px;color:color-mix(in srgb,var(--brand) 55%,#fff);margin-bottom:8px}
.empty h3{color:var(--ink);margin:4px 0 6px}
.empty p{max-width:460px;margin:0 auto 16px}
.prog{height:8px;background:var(--line-2);border-radius:8px;overflow:hidden}
.prog i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:8px}
.prog-l{font-size:12px;color:var(--muted);margin-top:5px}
.pager{display:flex;gap:6px;align-items:center;justify-content:flex-end;padding:14px;font-size:13px;color:var(--muted)}
.pager span{margin-right:auto}
.pager a{min-width:32px;height:32px;display:grid;place-items:center;border-radius:8px;border:1px solid var(--line);color:var(--ink);padding:0 6px}
.pager a.on{background:var(--brand);border-color:var(--brand);color:#fff}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:18px;overflow-x:auto;scrollbar-width:none}
.tabs a{padding:10px 14px;color:var(--muted);font-weight:600;font-size:14px;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tabs a:hover{color:var(--ink);text-decoration:none}
.tabs a.on{color:var(--brand);border-bottom-color:var(--brand)}
.tabs a .pill{margin-left:4px}
.dl{display:grid;grid-template-columns:minmax(120px,190px) 1fr;gap:10px 16px;margin:0}
.dl dt{color:var(--muted);font-size:13.5px}
.dl dd{margin:0;font-weight:500;min-width:0;overflow-wrap:anywhere}
.list{list-style:none;margin:0;padding:0}
.list>li{display:flex;gap:12px;align-items:center;padding:12px 18px;border-bottom:1px solid var(--line-2)}
.list>li:last-child{border-bottom:0}
.list .grow{min-width:0}
.list .t1{font-weight:600}
.list .t2{font-size:13px;color:var(--muted)}
.note{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14px}
.note.warn{background:var(--amber-bg);border-color:#f2d9a8}
.note.ok{background:var(--green-bg);border-color:#bfe5d1}
.note.bad{background:var(--red-bg);border-color:#f6c9b8}
.kbd{font:600 12px var(--font);padding:2px 6px;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;background:#fff}
.steps{display:flex;gap:0;counter-reset:s;margin-bottom:22px;overflow-x:auto}
.steps li{list-style:none;flex:1;min-width:120px;position:relative;padding-top:40px;text-align:center;font-size:13px;color:var(--muted);font-weight:550}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;top:0;left:50%;transform:translateX(-50%);width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#fff;border:2px solid var(--line);font-weight:700;color:var(--muted);z-index:1}
.steps li::after{content:"";position:absolute;top:14px;left:-50%;width:100%;height:2px;background:var(--line)}
.steps li:first-child::after{display:none}
.steps li.done::before{content:"✓";background:var(--green);border-color:var(--green);color:#fff}
.steps li.done::after,.steps li.on::after{background:var(--green)}
.steps li.on{color:var(--ink)}
.steps li.on::before{border-color:var(--brand);color:var(--brand);box-shadow:0 0 0 4px var(--tint)}
.timeline{list-style:none;margin:0;padding:0 0 0 18px;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 16px 14px;font-size:14px}
.timeline li::before{content:"";position:absolute;left:-25px;top:5px;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--brand)}
.timeline small{display:block;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:30px;background:var(--soft);border:1px solid var(--line);font-size:13px;font-weight:550;color:var(--ink-2)}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}
dialog.modal{border:0;border-radius:16px;padding:0;max-width:560px;width:calc(100% - 32px);box-shadow:0 30px 80px -20px rgba(0,0,0,.4)}
dialog.modal::backdrop{background:rgba(35,20,26,.45);backdrop-filter:blur(2px)}
.modal-h{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal-h h3{margin:0}
.modal-b{padding:20px}

/* ---------- dashboard / course cards (Canvas-like) ---------- */
.hello{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;border-radius:var(--r-lg);padding:26px 28px;margin-bottom:24px;position:relative;overflow:hidden}
.hello::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--accent) 55%,transparent),transparent 70%);opacity:.55}
.hello h1{color:#fff;margin:0 0 4px;font-size:28px}
.hello p{margin:0;color:rgba(255,255,255,.82)}
.hello .btn.ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.25);color:#fff}
.hello>*{position:relative;z-index:1}
.ccards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.ccard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;color:var(--ink);transition:transform .15s,box-shadow .15s}
.ccard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);text-decoration:none}
.ccard-top{height:112px;position:relative;background:var(--brand);background-size:cover;background-position:center}
.ccard-top::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(0,0,0,.35))}
.ccard-top .code{position:absolute;left:14px;bottom:10px;color:#fff;font-weight:650;font-size:12px;letter-spacing:.05em;z-index:1}
.ccard-b{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.ccard-b h3{margin:0;font-size:15.5px}
.ccard-b .meta{font-size:12.5px;color:var(--muted)}
.ccard-b .prog{margin-top:auto}
.cc-0{background:linear-gradient(135deg,#73263B,#B2455A)}.cc-1{background:linear-gradient(135deg,#8C5A12,#D9AE2B)}.cc-2{background:linear-gradient(135deg,#2F5D50,#5FA38A)}.cc-3{background:linear-gradient(135deg,#3E2A5C,#7E5BB0)}.cc-4{background:linear-gradient(135deg,#5A1F2E,#A1334C)}.cc-5{background:linear-gradient(135deg,#1F4A66,#4E8DB7)}
.todo{list-style:none;margin:0;padding:0}
.todo li{display:flex;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line-2)}
.todo li:last-child{border-bottom:0}
.todo .ic{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:var(--tint);color:var(--brand);flex:none}
.todo a{font-weight:600;color:var(--ink)}
.todo small{display:block;color:var(--muted)}

/* course (unit) shell */
.course{display:grid;grid-template-columns:210px minmax(0,1fr);gap:28px;align-items:start}
.cnav{position:sticky;top:80px;display:flex;flex-direction:column;gap:2px}
.cnav a{padding:8px 12px;border-radius:8px;color:var(--ink-2);font-weight:550;font-size:14px;border-left:3px solid transparent}
.cnav a:hover{background:var(--soft);text-decoration:none}
.cnav a.on{color:var(--brand);border-left-color:var(--brand);background:var(--tint);border-radius:0 8px 8px 0}
.mod{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);margin-bottom:14px;overflow:hidden}
.mod>summary{list-style:none;display:flex;align-items:center;gap:12px;padding:14px 18px;cursor:pointer;background:#FCFAF8;border-bottom:1px solid var(--line-2);font-weight:650}
.mod>summary::-webkit-details-marker{display:none}
.mod>summary .i.chev{transition:transform .2s;color:var(--muted)}
.mod[open]>summary .i.chev{transform:rotate(90deg)}
.mod>summary .grow{min-width:0}
.mod>summary small{font-weight:500;color:var(--muted);margin-left:auto;white-space:nowrap}
.mod-items{list-style:none;margin:0;padding:0}
.mod-items li{display:flex;align-items:center;gap:12px;padding:11px 18px 11px 22px;border-bottom:1px solid var(--line-2)}
.mod-items li:last-child{border-bottom:0}
.mod-items .ty{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:var(--soft);color:var(--ink-2);flex:none}
.mod-items .ty.quiz{background:var(--amber-bg);color:var(--amber)}
.mod-items .ty.done{background:var(--green-bg);color:var(--green)}
.mod-items a{color:var(--ink);font-weight:550}
.mod-items .meta{margin-left:auto;font-size:12.5px;color:var(--muted);white-space:nowrap}
.mod-items li.locked{opacity:.55}
.lesson{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:34px 40px;box-shadow:var(--sh-1)}
.prose{font-size:16px;line-height:1.72;color:#2E2428;max-width:760px}
.prose h2{font-size:22px;margin:1.6em 0 .5em}
.prose h3{font-size:18px;margin:1.4em 0 .4em;font-family:var(--display);font-weight:600}
.prose h4{font-size:15.5px;margin:1.2em 0 .3em}
.prose ul,.prose ol{padding-left:1.4em}
.prose li{margin:.3em 0}
.prose table{border-collapse:collapse;width:100%;margin:1em 0;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.prose th{background:var(--soft)}
.prose img{margin:1em auto;border-radius:10px;max-height:460px}
.prose figure{margin:1.2em 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--muted)}
.prose .callout{background:var(--tint);border-left:4px solid var(--brand);padding:12px 16px;border-radius:0 10px 10px 0;margin:1em 0}
.prose .key{background:var(--amber-bg);border-left:4px solid var(--accent);padding:12px 16px;border-radius:0 10px 10px 0;margin:1em 0}
.lesson-nav{display:flex;justify-content:space-between;gap:12px;margin-top:20px}

/* quiz taking */
.qpaper{max-width:820px}
.q{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;margin-bottom:14px}
.q-h{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted);margin-bottom:8px;font-weight:600}
.q-p{font-size:16px;font-weight:550;margin-bottom:14px}
.q-o{display:flex;flex-direction:column;gap:8px}
.q-o label{display:flex;gap:12px;align-items:flex-start;padding:11px 14px;border:1px solid var(--line);border-radius:10px;cursor:pointer;transition:border-color .15s,background .15s}
.q-o label:hover{border-color:color-mix(in srgb,var(--brand) 40%,var(--line))}
.q-o input{accent-color:var(--brand);margin-top:3px}
.q-o label:has(input:checked){border-color:var(--brand);background:var(--tint)}
.q-o label.correct{border-color:var(--green);background:var(--green-bg)}
.q-o label.wrong{border-color:var(--red);background:var(--red-bg)}
.q-x{margin-top:12px;font-size:14px;padding:10px 12px;border-radius:8px;background:var(--soft)}
.timer{position:sticky;top:70px;z-index:5;display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:30px;font-weight:650;font-variant-numeric:tabular-nums}
.timer.low{background:var(--red)}
.qnav{display:flex;flex-wrap:wrap;gap:6px}
.qnav a{width:34px;height:34px;display:grid;place-items:center;border-radius:8px;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink)}
.qnav a.ans{background:var(--tint);border-color:var(--brand);color:var(--brand)}

/* gradebook */
.gb{font-size:13.5px}
.gb th{text-transform:none;letter-spacing:0;font-size:12.5px;vertical-align:bottom}
.gb td.cell{text-align:center;min-width:70px}
.gb .sticky{position:sticky;left:0;background:#fff;z-index:1}
.score{font-weight:650;font-variant-numeric:tabular-nums}
.score.lo{color:var(--red)}.score.hi{color:var(--green)}

/* ---------- auth pages ---------- */
.authpage{background:var(--bg)}
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}
.auth-art{position:relative;background:var(--rail) var(--art) center/cover no-repeat;color:#fff}
.auth-art::before{content:"";position:absolute;inset:0;background:linear-gradient(160deg,color-mix(in srgb,var(--rail) 88%,transparent) 0%,color-mix(in srgb,var(--brand) 55%,transparent) 55%,rgba(20,8,12,.85) 100%)}
.auth-art-in{position:relative;height:100%;display:flex;flex-direction:column;justify-content:space-between;padding:44px 52px}
.auth-logo{height:70px;width:auto}
.auth-tag{font:600 34px/1.15 var(--display);max-width:460px;margin-bottom:22px;color:#fff}
.auth-points{list-style:none;padding:0;margin:0;display:grid;gap:10px;color:rgba(255,255,255,.88)}
.auth-points li{display:flex;gap:10px;align-items:center}
.auth-points .i{color:var(--accent)}
.auth-main{display:flex;flex-direction:column;justify-content:center;align-items:center;padding:40px 24px}
.auth-card{width:100%;max-width:440px}
.auth-card.wide{max-width:760px}
.auth-card h1{font-size:30px;margin-bottom:6px}
.auth-card .lead{color:var(--muted);margin-bottom:24px}
.auth-logo-m{display:none;margin-bottom:22px}
.auth-logo-m img{height:56px;width:auto}
.auth-foot{font-size:13px;color:var(--muted);margin-top:28px;text-align:center}
.auth-foot a{color:var(--muted)}
.auth-alt{text-align:center;margin-top:20px;color:var(--muted);font-size:14.5px}
.divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12.5px;margin:18px 0}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}
.err-page{text-align:center;padding:40px 0}
.err-code{font:700 80px/1 var(--display);color:color-mix(in srgb,var(--brand) 30%,#fff)}

/* ---------- print (A4 documents) ---------- */
.printpage{background:#e9e4e1}
.print-bar{position:sticky;top:0;display:flex;justify-content:center;gap:10px;padding:12px;background:rgba(255,255,255,.9);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);z-index:5}
.sheet{width:210mm;min-height:297mm;margin:20px auto;background:#fff;padding:18mm 18mm 16mm;box-shadow:0 10px 40px -10px rgba(0,0,0,.25);position:relative;font-size:13.5px;color:#222}
.sheet.land{width:297mm;min-height:210mm}
.doc-h{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:3px solid var(--brand);padding-bottom:12px;margin-bottom:18px}
.doc-h img{height:60px;width:auto}
.doc-h .addr{text-align:right;font-size:12px;color:#555;line-height:1.5}
.doc-title{font:700 20px var(--display);color:var(--brand);margin:6px 0 14px;text-transform:uppercase;letter-spacing:.04em}
@media print{
  @page{size:A4;margin:0}
  body{background:#fff!important}
  .no-print,.print-bar{display:none!important}
  .sheet{margin:0;box-shadow:none;width:auto;min-height:auto;page-break-after:always}
  a{color:inherit}
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:980px){
  .side{transform:translateX(-102%);box-shadow:none}
  .side.open{transform:none;box-shadow:20px 0 60px rgba(0,0,0,.3)}
  .scrim.open{display:block;position:fixed;inset:0;background:rgba(20,8,12,.45);z-index:35}
  .shell{margin-left:0}
  .only-m{display:inline-grid}
  .top{padding:0 16px}
  .page{padding:20px 16px 40px}
  .g3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .course,.split-l{grid-template-columns:minmax(0,1fr)}
  .cnav{position:static;flex-direction:row;overflow-x:auto;gap:4px;border-bottom:1px solid var(--line);padding-bottom:6px}
  .cnav a{white-space:nowrap;border-left:0;border-radius:8px}
  .cnav a.on{border-radius:8px}
  .auth-wrap{grid-template-columns:1fr}
  .auth-art{display:none}
  .auth-logo-m{display:block}
  .lesson{padding:22px 18px}
  .foot{padding:16px}
}
@media (max-width:640px){
  h1,.page-h h1{font-size:24px}
  .g2,.g3,.g4{grid-template-columns:minmax(0,1fr)}
  .form-grid>.field{grid-column:1/-1!important}
  .dl{grid-template-columns:1fr;gap:2px 0}
  .dl dd{margin-bottom:10px}
  .hide-s{display:none!important}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .stat{padding:12px;gap:10px}
  .stat-ic{width:36px;height:36px}
  .stat-v{font-size:19px}
  .search input{min-width:0;width:100%}
  .filters>*{flex:1 1 140px}
  .hello{padding:20px}
  .t th,.t td{padding:10px}
  .sheet{width:100%;min-height:0;padding:16px;margin:0}
}