:root{
  --bg:#f4f3ee;--card:#fff;--ink:#16182b;--muted:#626577;--line:#e3e1d8;--side:#14162a;--side-ink:#c9cbe0;
  --brand:#3d4ef0;--brand-d:#2c3acc;--brand-soft:#e9ebff;--ok:#0e7a4f;--ok-soft:#dff5ea;--bad:#b3261e;--bad-soft:#fde7e5;--warn:#9a5b00;
  --r:14px;--shadow:0 1px 2px rgba(20,22,42,.05),0 8px 24px -12px rgba(20,22,42,.12);
  --font:"Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:15px/1.55 var(--font);color:var(--ink);background:var(--bg)}
html.guarded body{-webkit-user-select:none;user-select:none}
html.guarded input,html.guarded textarea{-webkit-user-select:text;user-select:text}
a{color:var(--brand-d);text-decoration:none}a:hover{text-decoration:underline}
h1{font-size:26px;line-height:1.2;margin:0 0 4px;letter-spacing:-.02em;text-wrap:balance}
h2{font-size:17px;margin:0 0 14px;letter-spacing:-.01em}
h3{font-size:15px;margin:18px 0 8px}
p{margin:0 0 10px}small{font-size:12.5px;color:var(--muted)}
.muted{color:var(--muted)}.center{text-align:center}.grow{flex:1;min-width:0}.warn{color:var(--warn)}
.ic{width:18px;height:18px;flex:none;vertical-align:-3px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px 12px;border-radius:8px}

/* ---------- shell ---------- */
.side{position:fixed;inset:0 auto 0 0;width:250px;background:var(--side);color:var(--side-ink);display:flex;flex-direction:column;padding:20px 14px;z-index:30}
.brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:700;font-size:16px;padding:4px 8px 22px;text-decoration:none!important;line-height:1.2}
.brand small{display:block;color:#8d90ad;font-weight:500;font-size:12px}
.logo{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,#5b6bff,#8a5bff);display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;flex:none}
.side nav{display:flex;flex-direction:column;gap:3px;flex:1;overflow:auto}
.side nav a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;color:var(--side-ink);font-weight:500;text-decoration:none}
.side nav a:hover{background:#1f2240;color:#fff}
.side nav a.on{background:var(--brand);color:#fff}
.side-foot{border-top:1px solid #272a47;padding-top:14px;display:flex;flex-direction:column;gap:8px}
.me{display:flex;gap:10px;align-items:center;padding:0 6px;min-width:0}
.me b{display:block;color:#fff;font-size:13.5px}.me small{color:#8d90ad;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:160px}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--brand-soft);color:var(--brand-d);display:grid;place-items:center;font-weight:700;flex:none}
.linkbtn{all:unset;cursor:pointer;display:flex;gap:12px;align-items:center;padding:9px 12px;border-radius:10px;color:var(--side-ink);width:100%;box-sizing:border-box}
.linkbtn:hover{background:#1f2240;color:#fff}
.topbar{display:none}
main{margin-left:250px;padding:30px clamp(16px,3.2vw,44px) 60px;max-width:1500px}
main>section,main>.card{margin-bottom:20px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:6px}.crumbs i{opacity:.5;font-style:normal}
.pagehead{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.sechead{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:12px}.sechead h2{margin:0}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ---------- pieces ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow);margin-bottom:20px}
.card.narrow{max-width:720px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.grid2.wide-left{grid-template-columns:minmax(0,1.7fr) minmax(0,1fr)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:14px}.stats.three{grid-template-columns:repeat(3,1fr);margin-bottom:22px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;color:inherit;text-decoration:none!important;box-shadow:var(--shadow)}
a.stat:hover{border-color:var(--brand)}
.stat b{display:block;font-size:28px;letter-spacing:-.02em;line-height:1.15;font-variant-numeric:tabular-nums}.stat span{color:var(--muted);font-size:13px}
.stat.soft{background:transparent;box-shadow:none;border-style:dashed}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;font:600 14px var(--font);padding:9px 16px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;text-decoration:none!important;white-space:nowrap}
.btn:hover{border-color:#b9b7ad;background:#fafaf7}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{background:var(--brand-d)}
.btn.danger{color:var(--bad);border-color:#f1c9c6}.btn.danger:hover{background:var(--bad-soft)}
.btn.sm{padding:5px 11px;font-size:13px;border-radius:8px}.btn.block{width:100%;padding:11px}
.iconbtn{all:unset;cursor:pointer;width:30px;height:30px;display:grid;place-items:center;border-radius:8px;color:var(--muted)}.iconbtn:hover{background:#efeee8;color:var(--ink)}
.pill{display:inline-block;font-size:12px;font-weight:600;padding:2px 10px;border-radius:99px;background:#eceae2;color:#4b4d5c;white-space:nowrap}
.pill.ok{background:var(--ok-soft);color:var(--ok)}.pill.bad{background:var(--bad-soft);color:var(--bad)}
.bar{height:7px;background:#e9e7df;border-radius:99px;overflow:hidden;margin:7px 0 4px}.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),#7c6bff);border-radius:99px;transition:width .4s}
.flash{padding:11px 15px;border-radius:10px;margin-bottom:18px;font-weight:500;background:var(--ok-soft);color:var(--ok);border:1px solid #bfe8d2;transition:opacity .5s}
.flash.err{background:var(--bad-soft);color:var(--bad);border-color:#f3c5c1}.flash.gone{opacity:0}
.notice{display:flex;gap:8px;align-items:center;background:#fff7e6;border:1px solid #f0dcae;color:#6d4a00;padding:10px 14px;border-radius:10px}
.empty{text-align:center;padding:38px 20px;border:1.5px dashed var(--line);border-radius:var(--r);color:var(--muted)}.empty h3{color:var(--ink);margin:0 0 6px;font-size:16px}.empty .btn{margin-top:8px}

/* forms */
.stack{display:flex;flex-direction:column;gap:14px}
label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:13.5px}
label small{font-weight:400}
input,select,textarea{font:15px var(--font);color:var(--ink);padding:9px 12px;border:1px solid #cfcdc3;border-radius:10px;background:#fff;width:100%;min-width:0}
textarea{resize:vertical;line-height:1.5}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:0;border-color:var(--brand)}
input:disabled{background:#f1f0ea;color:var(--muted)}
label.check{flex-direction:row;align-items:flex-start;gap:10px;font-weight:600;flex-wrap:wrap}label.check input{width:18px;height:18px;margin-top:2px;flex:none;accent-color:var(--brand)}
label.check small{flex-basis:100%;margin-left:28px;margin-top:-4px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form.inline{display:inline-flex;gap:8px;align-items:center;margin:0}form.inline.grow{display:flex}
form.inline input,form.inline select{width:auto;flex:1;min-width:120px}
.addrow{display:flex!important;margin-top:14px!important;padding-top:14px;border-top:1px solid var(--line)}

/* tables & lists */
.scroll{overflow-x:auto}
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600;padding:0 10px 8px}
.table td{padding:11px 10px;border-top:1px solid var(--line);vertical-align:middle}
.list{list-style:none;margin:0;padding:0}
.list li{display:flex;gap:12px;align-items:center;padding:11px 0;border-top:1px solid var(--line)}.list li:first-child{border-top:0;padding-top:0}
.list li small{display:block}.list.tall li{align-items:flex-start}.list.tall p{margin:6px 0 0;white-space:pre-line}
.section{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:14px;background:#fbfaf7}
.section-h{display:flex;gap:6px;align-items:center;margin-bottom:8px}.section-h input{font-weight:600}
.lessons{list-style:none;margin:0 0 12px;padding:0}
.lessons li{display:flex;gap:6px;align-items:center;padding:9px 10px;background:#fff;border:1px solid var(--line);border-radius:10px;margin-top:6px}
.lessons small{display:block}
.qlist{padding-left:22px;margin:0}.qlist>li{padding:12px 0;border-top:1px solid var(--line)}.qlist>li:first-child{border:0}
.qlist>li{display:list-item}.qlist>li>.grow{display:inline-block;width:calc(100% - 90px);vertical-align:top}
.qlist ul{list-style:none;padding:0;margin:6px 0 0;color:var(--muted)}.qlist .right{color:var(--ok);font-weight:600}

/* course cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;margin-bottom:22px}
.ccard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;color:inherit;text-decoration:none!important;box-shadow:var(--shadow);transition:transform .15s,border-color .15s;display:flex;flex-direction:column}
.ccard:hover{transform:translateY(-3px);border-color:var(--brand)}
.ccard-b{padding:14px 16px 16px}.ccard-b h3{margin:0 0 4px;font-size:16px;line-height:1.3}.ccard-b p{margin:0 0 8px;font-size:13.5px}
.cover{aspect-ratio:16/8;background:linear-gradient(135deg,hsl(var(--h) 62% 42%),hsl(calc(var(--h) + 45) 68% 30%));position:relative;display:grid;place-items:center;color:#fff;overflow:hidden}
.cover span{font-size:54px;font-weight:800;opacity:.9;letter-spacing:-.04em}
.cover::after{content:"";position:absolute;width:160%;aspect-ratio:1;border-radius:50%;border:44px solid rgba(255,255,255,.07);right:-70%;top:-90%}
.cover em{position:absolute;left:12px;bottom:10px;font-style:normal;font-size:12px;font-weight:600;background:rgba(0,0,0,.28);padding:2px 9px;border-radius:99px}
.cover.big{border-radius:var(--r);width:300px;flex:none;aspect-ratio:4/3}
.hero{display:flex;gap:26px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;margin-bottom:20px;box-shadow:var(--shadow)}
.hero-b{flex:1;min-width:0}.hero h1{font-size:30px;margin:8px 0 6px}.tags{display:flex;gap:6px;flex-wrap:wrap}.hero-prog{max-width:420px;margin:10px 0 14px}
.resume{display:flex;gap:16px;align-items:center;background:var(--side);color:#fff;border-radius:16px;padding:18px 20px;margin-bottom:18px;text-decoration:none!important}
.resume small{color:#a4a7c6;display:block}.resume b{font-size:18px;display:block}.resume .bar{background:#2b2e52;max-width:360px}
.resume-play{width:46px;height:46px;border-radius:50%;background:var(--brand);display:grid;place-items:center;flex:none}

/* curriculum */
.sec-t{font-size:12px!important;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:18px 0 6px!important;font-weight:700;list-style:none}
.curr{list-style:none;margin:0;padding:0}
.curr li>a,.curr li>div{display:flex;gap:12px;align-items:center;padding:10px;border-radius:10px;color:inherit;text-decoration:none}
.curr li>a:hover{background:#f3f2ec}.curr li.locked{color:var(--muted)}
.curr li.cur>a{background:var(--brand-soft);font-weight:600}
.tick{width:26px;height:26px;border-radius:50%;border:1.5px solid #cfcdc3;display:grid;place-items:center;flex:none;color:var(--muted)}
.tick .ic{width:13px;height:13px}.tick.done{background:var(--ok);border-color:var(--ok);color:#fff}
.curr.compact{max-height:62vh;overflow:auto;margin-top:10px}.curr.compact li>a,.curr.compact li>div{padding:8px;font-size:14px}
.reslist{list-style:none;padding:0;margin:0}.reslist li{padding:6px 0}

/* ---------- lesson page & player ---------- */
.learn{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:20px;align-items:start}
.learn-side{position:sticky;top:20px}
.learn-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap;margin:18px 0}
.vp{position:relative;aspect-ratio:16/9;background:#000;border-radius:16px;overflow:hidden;color:#fff;-webkit-user-select:none;user-select:none;box-shadow:0 20px 50px -24px rgba(10,12,30,.6)}
.vp.novideo{display:grid;place-items:center;color:#aab;background:#191b30}
.vp:fullscreen{border-radius:0;aspect-ratio:auto;width:100vw;height:100vh}
/* The frame is three times the visible height: YouTube's title strip, logo and "more videos" shelf sit in the cropped-off areas. */
.vp-frame{position:absolute;left:0;top:-100%;width:100%;height:300%;pointer-events:none}
.vp-frame iframe{width:100%;height:100%;border:0;pointer-events:none}
.vp-shield{position:absolute;inset:0;z-index:2;cursor:pointer}
.vp.playing:not(.ui) .vp-shield{cursor:none}
.vp.blurred .vp-frame{filter:blur(30px)}
.vp-wm{position:absolute;z-index:3;font-size:13px;font-weight:600;color:rgba(255,255,255,.34);text-shadow:0 0 3px rgba(0,0,0,.5);pointer-events:none;white-space:nowrap;transition:top 2s,left 2s}
.vp-cover{position:absolute;inset:0;z-index:4;background:radial-gradient(120% 120% at 20% 10%,#2a2f66,#11132a 60%);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:20px}
.vp-big{all:unset;cursor:pointer;width:84px;height:84px;border-radius:50%;background:var(--brand);display:grid;place-items:center;box-shadow:0 10px 30px rgba(61,78,240,.5);transition:transform .15s;opacity:.5}
.vp.ready .vp-big{opacity:1}.vp-big:hover{transform:scale(1.07)}.vp-big .ic{width:34px;height:34px;margin-left:4px}
.vp-title{font-size:clamp(16px,2.2vw,22px);font-weight:700;max-width:80%;text-wrap:balance}
.vp-msg{color:#b6b9d6;font-size:14px;min-height:20px}
.vp-end{display:flex;gap:10px}
.vp-unmute{position:absolute;z-index:6;top:14px;left:14px;font:600 13px var(--font);background:#fff;color:#111;border:0;border-radius:99px;padding:8px 14px;cursor:pointer;display:flex;gap:6px;align-items:center}
.vp-bar{position:absolute;left:0;right:0;bottom:0;z-index:5;padding:28px 14px 10px;background:linear-gradient(transparent,rgba(0,0,0,.82));transition:opacity .25s;opacity:0;pointer-events:none}
.vp.started .vp-bar{opacity:1;pointer-events:auto}
.vp.started.playing:not(.ui) .vp-bar{opacity:0;pointer-events:none}
.vp-row{display:flex;align-items:center;gap:6px;margin-top:4px}
.vp-row button{all:unset;cursor:pointer;min-width:36px;height:36px;padding:0 6px;box-sizing:border-box;display:grid;place-items:center;border-radius:8px;font:600 12.5px var(--font);color:#fff}
.vp-row button:hover,.vp-row button:focus-visible{background:rgba(255,255,255,.16)}
.vp-row .ic{width:20px;height:20px}
.i-pause,.vp.playing .i-play,.i-mute,.vp.muted .i-vol{display:none}.vp.playing .i-pause,.vp.muted .i-mute{display:block}
.vp-time{font-size:13px;font-variant-numeric:tabular-nums;margin-left:6px;white-space:nowrap}
.vp input[type=range]{-webkit-appearance:none;appearance:none;background:transparent;border:0;padding:0;height:16px;cursor:pointer;width:100%}
.vp input[type=range]::-webkit-slider-runnable-track{height:5px;border-radius:9px;background:linear-gradient(90deg,#7d8bff var(--p,0%),rgba(255,255,255,.3) var(--p,0%))}
.vp input[type=range]::-moz-range-track{height:5px;border-radius:9px;background:rgba(255,255,255,.3)}
.vp input[type=range]::-moz-range-progress{height:5px;border-radius:9px;background:#7d8bff}
.vp input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:#fff;margin-top:-4.5px}
.vp input[type=range]::-moz-range-thumb{width:14px;height:14px;border:0;border-radius:50%;background:#fff}
.vp .vp-vol{width:80px;--p:100%}
.vp-speed{width:auto;min-width:68px;background:rgba(255,255,255,.14);color:#fff;border:0;border-radius:8px;padding:6px 8px;font:600 13px var(--font)}.vp-speed option{color:#111}
.lockdown{position:fixed;inset:0;z-index:999;background:#0d0f22;color:#fff;display:grid;place-items:center;padding:24px;text-align:center}
.lockdown div{max-width:440px}.lockdown h2{font-size:22px}.lockdown p{color:#b6b9d6;margin-bottom:18px}

/* quiz */
.quiz fieldset{border:1px solid var(--line);margin:0 0 16px}.quiz legend{font-size:12.5px;color:var(--muted);font-weight:600;padding:0 6px}
.q-text{font-size:16.5px;font-weight:600;margin-bottom:12px}
.opt{flex-direction:row;align-items:center;gap:12px;padding:11px 14px;border:1px solid var(--line);border-radius:10px;margin-top:8px;font-weight:500;font-size:15px;cursor:pointer;display:flex}
.opt input{width:18px;height:18px;flex:none;accent-color:var(--brand)}.opt:has(input:checked){border-color:var(--brand);background:var(--brand-soft)}
.opt.review{cursor:default;justify-content:space-between}.opt em{font-style:normal;font-size:12.5px;font-weight:700}
.opt.right{border-color:var(--ok);background:var(--ok-soft);color:var(--ok)}.opt.wrong{border-color:var(--bad);background:var(--bad-soft);color:var(--bad)}
.explain{margin-top:12px;background:#f6f5ef;padding:10px 14px;border-radius:10px}
.result{display:flex;gap:24px;align-items:center;border-radius:18px;padding:24px;margin-bottom:20px;color:#fff;background:var(--bad)}
.result.pass{background:var(--ok)}.result>b{font-size:54px;letter-spacing:-.03em;line-height:1}.result h1{color:#fff}.result .btn{border-color:transparent}

/* certificate */
.cert{background:#fff;border:10px double #c9b26b;border-radius:6px;max-width:860px;margin:0 auto;padding:56px 40px;text-align:center}
.cert small{letter-spacing:.2em;text-transform:uppercase;font-weight:700}.cert h2{font:400 38px Georgia,"Times New Roman",serif;margin:14px 0 26px}
.cert b{display:block;font:italic 34px Georgia,serif;margin:10px 0 18px;border-bottom:1px solid #c9b26b;padding-bottom:12px}
.cert strong{display:block;font-size:22px;margin:8px 0 34px}.cert-foot{display:flex;justify-content:space-between;color:var(--muted);font-size:13px}

/* auth */
body.auth{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(90% 70% at 10% 0%,#dfe2ff,transparent 60%),var(--bg)}
.auth-card{margin:0;width:100%;max-width:420px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:0 30px 60px -30px rgba(20,22,42,.3)}
.auth-card .brand{color:var(--ink);padding:0 0 22px}.auth-card .brand small{color:var(--muted)}
.auth-card h1{margin-bottom:18px}.auth-card .center{margin:18px 0 0}

/* ---------- responsive ---------- */
@media (max-width:1100px){.learn{grid-template-columns:1fr}.learn-side{position:static}.grid2,.grid2.wide-left{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){
  .topbar{display:flex;align-items:center;gap:10px;position:sticky;top:0;z-index:20;background:var(--side);color:#fff;padding:8px 12px}.topbar .iconbtn{color:#fff;width:40px;height:40px}
  .side{transform:translateX(-100%);transition:transform .2s}.side.open{transform:none;box-shadow:0 0 0 100vmax rgba(0,0,0,.45)}
  main{margin-left:0;padding:20px 16px 50px}
  .hero{flex-direction:column;align-items:stretch}.cover.big{width:100%;aspect-ratio:16/8}
  .stats.three{grid-template-columns:1fr}.row2{grid-template-columns:1fr}
  .vp{border-radius:10px}.vp .vp-vol,.vp-row [data-act=back],.vp-row [data-act=fwd]{display:none}
  .resume{flex-wrap:wrap}.result{flex-direction:column;text-align:center}.section-h{flex-wrap:wrap}.lessons li{flex-wrap:wrap}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
@media print{.side,.topbar,.noprint,.crumbs,.flash{display:none!important}main{margin:0;padding:0}body{background:#fff}}

/* ================= version 2: uploads, tasks, attendance, reports, standing, vouchers ================= */
.logo-img{height:40px;width:auto;max-width:64px;object-fit:contain;flex:none;background:#fff;border-radius:9px;padding:3px}
.cover.img{background:#0f1126;display:block}.cover.img::after{display:none}.cover.img img{width:100%;height:100%;object-fit:cover;display:block}
.cover.big.img{aspect-ratio:16/9;width:340px}
.pill.warnp{background:#fff1d6;color:#8a5200}
.nowrap{white-space:nowrap}.mt{margin-top:14px}h3.flat{margin-top:0}
.thbox{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:0}.thbox legend{font-weight:700;font-size:13.5px;padding:0 6px}
.throw{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-bottom:12px}.throw label{font-size:13px;text-align:center}.throw input{padding:7px 4px;text-align:center}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;margin:0 0 12px}.facts div{min-width:0}
.facts dt{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.facts dd{margin:0;font-weight:600;overflow-wrap:anywhere}
.gradebox{display:flex;gap:16px;align-items:center}
.gradebig{width:96px;height:96px;border-radius:20px;background:linear-gradient(135deg,var(--brand),#7c6bff);color:#fff;display:grid;place-content:center;text-align:center;flex:none}
.gradebig b{font-size:38px;line-height:1;letter-spacing:-.03em}.gradebig span{font-size:13px;opacity:.9;font-variant-numeric:tabular-nums}
.gradebig.low{background:linear-gradient(135deg,#b3261e,#d9534f)}
.gradebox p{margin:0 0 4px}
.thstrip{display:flex;flex-wrap:wrap;gap:5px;margin:8px 0 4px}
.thstrip span{font-size:12px;border:1px solid var(--line);border-radius:8px;padding:3px 8px;background:#faf9f5;font-variant-numeric:tabular-nums}
.thstrip span b{margin-right:5px}.thstrip span.on{background:var(--brand);border-color:var(--brand);color:#fff}
.subrow{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-top:10px;background:#fbfaf7}
.subrow-h{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.subrow-h small{display:block}
.subrow-b{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:14px;margin-top:10px;align-items:end}
.subrow-b small{display:block;margin-top:5px}.subnote{font-style:italic;margin:6px 0 0}
.markform{display:flex;gap:8px;align-items:flex-end;flex-wrap:wrap}.markform label{font-size:12.5px}.markform input[type=number]{width:92px}.markform input[type=file]{max-width:210px;font-size:12.5px;padding:6px}
.reg{border-top:1px solid var(--line);padding:10px 0}.reg:first-of-type{border-top:0}.reg summary{display:flex;gap:10px;cursor:pointer;align-items:center}.reg .list{margin:10px 0 0 14px}
.qimg{display:block;max-width:100%;max-height:420px;border:1px solid var(--line);border-radius:10px;margin:0 0 12px;background:#fff}.qimg.sm{max-height:110px;margin:8px 0}
.timer{position:sticky;top:10px;z-index:15;display:flex;gap:12px;align-items:center;justify-content:center;background:var(--side);color:#fff;border-radius:12px;padding:10px 16px;margin-bottom:16px;box-shadow:var(--shadow)}
.timer b{font-size:22px;font-variant-numeric:tabular-nums}.timer.low{background:var(--bad)}
.notefile{margin-bottom:16px}.notefile-h{display:flex;gap:10px;align-items:center;margin-bottom:8px;flex-wrap:wrap}
.pdfview{width:100%;height:min(78vh,820px);border:1px solid var(--line);border-radius:10px;background:#f1f0ea}
.noteimg{max-width:100%;border:1px solid var(--line);border-radius:10px}
.voucher{background:#fff;border:1px solid var(--line);border-radius:14px;max-width:760px;padding:28px;margin-bottom:20px;box-shadow:var(--shadow)}
.voucher-h{display:flex;justify-content:space-between;align-items:center;gap:16px;border-bottom:2px solid var(--ink);padding-bottom:16px;margin-bottom:18px}
.voucher-h>div:first-child{display:grid;grid-template-columns:auto 1fr;column-gap:12px;align-items:center}.voucher-h b{font-size:19px}.voucher-h small{grid-column:2}
.voucher-logo{height:54px;grid-row:span 2}
.stamp{font-weight:800;letter-spacing:.12em;border:3px solid;border-radius:10px;padding:6px 16px;transform:rotate(-6deg);font-size:18px}
.stamp.paid{color:var(--ok)}.stamp.pending{color:#8a5200}.stamp.unpaid{color:var(--bad)}
.voucher-amt{display:flex;justify-content:space-between;align-items:center;background:#f6f5ef;border-radius:12px;padding:14px 18px;margin:8px 0 16px}.voucher-amt b{font-size:28px;letter-spacing:-.02em}
.voucher-pay{border:1px dashed #c9c6ba;border-radius:12px;padding:12px 16px;margin-bottom:14px}.voucher-pay h3{margin:0 0 6px}
.result>b small{font-size:22px;color:inherit;opacity:.85}
.vp-adjust{position:absolute;right:12px;bottom:74px;z-index:7;width:250px;max-width:calc(100% - 24px);background:rgba(18,20,40,.94);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:12px 14px;color:#fff;font-size:13px;display:flex;flex-direction:column;gap:7px;max-height:calc(100% - 86px);overflow-y:auto}
.vp-adjust label{color:#fff;font-weight:500;font-size:12.5px;display:grid;grid-template-columns:1fr auto;gap:2px 8px}.vp-adjust label input{grid-column:1/-1}
.vp-adjust output{color:#b6b9d6;font-variant-numeric:tabular-nums}.vp-adjust input[type=range]{--p:50%}
.vp-adjust input[type=range]::-webkit-slider-runnable-track{background:rgba(255,255,255,.3)}
.vp-adjust-f{display:flex;gap:8px;justify-content:flex-end}.vp-adjust-f button{all:unset;cursor:pointer;font-weight:600;padding:6px 12px;border-radius:8px;background:rgba(255,255,255,.14)}
.vp.adjusting .vp-bar{opacity:1!important;pointer-events:auto!important}
.vp-frame{transition:transform .2s}
@media (max-width:820px){.subrow-b{grid-template-columns:1fr}.throw{grid-template-columns:repeat(3,1fr)}.facts{grid-template-columns:1fr}.gradebox{flex-direction:column;align-items:flex-start}.cover.big.img{width:100%}.vp-adjust{bottom:60px;right:6px}}
@media print{.voucher,.card{box-shadow:none}.report-course{break-inside:avoid}a{color:inherit;text-decoration:none}.btn{display:none!important}}