/* Layout and components from the "AI Web Developer" LMS design artifact
   (Plus Jakarta Sans / Hind / JetBrains Mono, 14px cards, 20px pills),
   re-skinned in Noshtek brand colours taken from noshtek.com:
   #ff8e01 primary, #ff5200 deep, #ffb347 light, pure black surfaces. */

:root{
  --bg:#f6f7f9; --surface:#ffffff; --surface-2:#f1f3f7; --surface-3:#e9edf3;
  --border:#e3e7ee; --border-strong:#d2d8e3;
  --text:#101623; --text-2:#5a6478; --text-3:#98a0b0;
  --primary:#e07800; --primary-hover:#c46800; --primary-soft:#fff2e0; --primary-line:#ffd9a8;
  --brand:#ff8e01; --brand-deep:#ff5200; --brand-light:#ffb347;
  --success:#15803d; --success-soft:#e9f8ef; --warn:#b45309; --warn-soft:#fdf5e4;
  --error:#be123c; --error-soft:#fdeef1;
  --ai:#ff5200; --ai-soft:#fff0e8; --ai-line:#ffcdb5;
  --code-bg:#0d1220; --code-line:#1d2436; --code-text:#dfe6f5;
  --shadow-sm:0 1px 2px rgba(16,22,35,.06); --shadow:0 6px 24px -12px rgba(16,22,35,.18);
  --ui:'Plus Jakarta Sans','Hind',system-ui,sans-serif; --mono:'JetBrains Mono',ui-monospace,monospace;
  --r-card:14px; --r-pill:20px; --maxw:1120px;
}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]){
  --bg:#000000; --surface:#0c0c0f; --surface-2:#141418; --surface-3:#1e1e24;
  --border:#26262d; --border-strong:#3a3a44;
  --text:#f5f5f7; --text-2:#a0a0ab; --text-3:#6e6e7a;
  --primary:#ff8e01; --primary-hover:#ffa733; --primary-soft:#2a1a06; --primary-line:#4a2f0a;
    --brand:#ff8e01; --brand-deep:#ff5200; --brand-light:#ffb347;
  --success:#4ade80; --success-soft:#11251b; --warn:#fbbf24; --warn-soft:#241c0d;
  --error:#fb7185; --error-soft:#2a1119;
  --ai:#ff7a29; --ai-soft:#2b1408; --ai-line:#4d2410;
  --code-bg:#000000; --code-line:#1e1e24;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4); --shadow:0 10px 30px -14px rgba(0,0,0,.7);
}}
:root[data-theme="dark"]{
  --bg:#000000; --surface:#0c0c0f; --surface-2:#141418; --surface-3:#1e1e24;
  --border:#26262d; --border-strong:#3a3a44;
  --text:#f5f5f7; --text-2:#a0a0ab; --text-3:#6e6e7a;
  --primary:#ff8e01; --primary-hover:#ffa733; --primary-soft:#2a1a06; --primary-line:#4a2f0a;
    --brand:#ff8e01; --brand-deep:#ff5200; --brand-light:#ffb347;
  --success:#4ade80; --success-soft:#11251b; --warn:#fbbf24; --warn-soft:#241c0d;
  --error:#fb7185; --error-soft:#2a1119;
  --ai:#ff7a29; --ai-soft:#2b1408; --ai-line:#4d2410;
  --code-bg:#000000; --code-line:#1e1e24;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4); --shadow:0 10px 30px -14px rgba(0,0,0,.7);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:var(--ui);-webkit-font-smoothing:antialiased;text-wrap:pretty;line-height:1.5;min-height:100vh;display:flex;flex-direction:column}
main{flex:1 0 auto}
input,button,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-hover)}
code,.mono{font-family:var(--mono);font-size:.88em}
:is(h1,h2,h3,h4){margin:0;letter-spacing:-.02em;line-height:1.2}
h1{font-size:clamp(1.5rem,3.4vw,1.85rem);font-weight:800;letter-spacing:-.6px}
h2{font-size:1.15rem;font-weight:700}
h3{font-size:1rem;font-weight:700}
[hidden]{display:none !important}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 18px}
.eyebrow{font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--primary)}
.muted{color:var(--text-2)}

/* ------------------------------------------------------------------- topbar */
.topbar{position:sticky;top:0;z-index:30;background:var(--surface);border-bottom:1px solid var(--border)}
.topbar .wrap{display:flex;align-items:center;gap:12px;padding-top:11px;padding-bottom:11px}
.logo{width:38px;height:38px;border-radius:11px;background:#000;border:1px solid var(--border);
  display:grid;place-items:center;flex:none;overflow:hidden}
.logo img,.logo svg{width:26px;height:26px;display:block}
.wordmark{font-weight:800;letter-spacing:-.02em;font-size:.98rem;margin-right:auto;line-height:1.15}
.wordmark span{display:block;font-weight:500;font-size:.72rem;color:var(--text-2);letter-spacing:0}
.icon-btn{width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:var(--surface);
  display:grid;place-items:center;font-size:.95rem;flex:none}
.icon-btn:hover{background:var(--surface-2)}
.btn{font-size:.85rem;font-weight:600;padding:8px 14px;border-radius:10px;border:1px solid var(--border);
  background:var(--surface);color:var(--text);display:inline-flex;align-items:center;gap:7px}
.btn:hover{background:var(--surface-2)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#000;font-weight:700}
.btn.primary:hover{background:var(--primary-hover)}
.sync{font-size:.72rem;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);background:var(--surface-2);
  color:var(--text-2);border:1px solid var(--border);white-space:nowrap}
.sync[data-kind="saved"]{background:var(--success-soft);color:var(--success);border-color:transparent}
.sync[data-kind="error"]{background:var(--error-soft);color:var(--error);border-color:transparent}
.sync[data-kind="local"]{background:var(--warn-soft);color:var(--warn);border-color:transparent}
.sync:empty{display:none}
.account{display:inline-flex;align-items:center;gap:8px;font-size:.84rem}
.avatar{width:30px;height:30px;border-radius:50%;border:1px solid var(--border);object-fit:cover}
.avatar.lg{width:42px;height:42px}
.avatar.ph{display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);font-weight:800;font-size:.9rem}
.who{color:var(--text-2);max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}

/* --------------------------------------------------------------------- nav */
.nav{position:sticky;bottom:0;z-index:30;background:var(--surface);border-top:1px solid var(--border);
  padding-bottom:env(safe-area-inset-bottom)}
.nav .wrap{display:flex;gap:4px;padding-top:7px;padding-bottom:7px}
.nav button{flex:1;background:none;border:0;padding:7px 4px;border-radius:10px;color:var(--text-3);
  font-size:.7rem;font-weight:600;display:grid;gap:3px;justify-items:center;line-height:1.3}
.nav button i{font-style:normal;font-size:1.05rem;line-height:1}
.nav button[aria-current="true"]{color:var(--primary);background:var(--primary-soft)}

/* ------------------------------------------------------------------- views */
main{padding:26px 0 34px;animation:fadeUp .3s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.view[hidden]{display:none}
.lead{color:var(--text-2);max-width:64ch;margin:8px 0 0}
.head{margin:0 0 22px}

/* ------------------------------------------------------------------- cards */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:16px 18px;box-shadow:var(--shadow-sm)}
.grid{display:grid;gap:13px}
.grid.s2{grid-template-columns:repeat(auto-fit,minmax(215px,1fr))}
.stat b{display:block;font-size:2rem;font-weight:800;letter-spacing:-.04em;line-height:1.1;font-variant-numeric:tabular-nums}
.stat .k{display:flex;align-items:center;justify-content:space-between;font-size:.82rem;font-weight:700;margin-bottom:6px}
.stat .k i{width:8px;height:8px;border-radius:50%;background:var(--primary);font-style:normal}
.stat small{color:var(--text-2);font-size:.76rem;font-weight:500}
.stat .of{font-size:.95rem;color:var(--text-3);font-weight:600}

.pill{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.3px;padding:3.5px 9px;
  border-radius:var(--r-pill);border:1px solid var(--border-strong);color:var(--text-2);background:var(--surface-2)}
.pill.done{background:var(--success-soft);color:var(--success);border-color:var(--success)}
.pill.now{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.pill.next{background:var(--warn-soft);color:var(--warn);border-color:var(--warn)}
.pill.el{background:var(--ai-soft);color:var(--ai);border-color:var(--ai-line)}
.tagm{font-family:var(--mono);font-size:10.5px;font-weight:500;padding:3px 8px;border-radius:7px;
  background:var(--surface-2);border:1px solid var(--border);color:var(--text-2)}

.track{height:6px;border-radius:99px;background:var(--surface-3);overflow:hidden}
.track i{display:block;height:100%;background:var(--primary);border-radius:99px;transition:width .4s ease}
.track.ok i{background:var(--success)}

/* ------------------------------------------------------------- learning path */
.path{position:relative;padding-left:52px}
.path::before{content:"";position:absolute;left:19px;top:8px;bottom:8px;width:2px;background:var(--border)}
.node{position:relative;margin:0 0 13px}
.node .dot{position:absolute;left:-52px;top:14px;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-weight:800;font-size:.85rem;background:var(--surface);border:1px solid var(--border-strong);color:var(--text-2)}
.node.done .dot{background:var(--success);border-color:var(--success);color:#fff}
.node.now .dot{background:var(--primary);border-color:var(--primary);color:#fff}
.node .card{cursor:pointer}
.node .card:hover{border-color:var(--border-strong)}
.m-top{display:flex;align-items:flex-start;gap:10px;flex-wrap:wrap}
.m-top h3{flex:1;min-width:180px}
.m-pct{text-align:right;font-weight:800;font-size:1rem;letter-spacing:-.02em;line-height:1.2}
.m-pct small{display:block;font-weight:500;font-size:.72rem;color:var(--text-3)}
.m-goal{color:var(--text-2);font-size:.88rem;margin:5px 0 11px}
.tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:11px}

.detail{border-top:1px solid var(--border);margin-top:14px;padding-top:14px;display:none}
.node.open .detail{display:block}
.detail h4{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);margin:18px 0 9px}
.detail h4:first-child{margin-top:0}
.detail ul{margin:0;padding-left:19px}
.detail li{margin:5px 0;font-size:.89rem;color:var(--text-2)}
.detail li strong,.detail li b{color:var(--text)}
.callout{border-radius:10px;padding:11px 13px;font-size:.86rem;border:1px solid transparent}
.callout.warn{background:var(--warn-soft);color:var(--text);border-color:var(--warn)}
.callout.ok{background:var(--success-soft);color:var(--text);border-color:var(--success)}
.callout.ai{background:var(--ai-soft);border-color:var(--ai-line)}
.docs{list-style:none;padding:0;display:grid;gap:7px}
.docs li{display:flex;align-items:center;gap:9px;background:var(--surface-2);border:1px solid var(--border);
  border-radius:10px;padding:9px 12px;font-size:.87rem;margin:0}
.lang{font-size:10px;font-weight:800;letter-spacing:.06em;padding:2.5px 6px;border-radius:6px;flex:none}
.lang.hi{background:var(--ai-soft);color:var(--ai)}
.lang.en{background:var(--primary-soft);color:var(--primary)}
.docs .ext{margin-left:auto;color:var(--text-3);font-size:.75rem;flex:none}

/* ------------------------------------------------------------------ videos */
.vids{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.vid{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.vid.watched{border-color:var(--success)}
.vid-frame{position:relative;aspect-ratio:16/9;background:#000;cursor:pointer}
.vid-frame iframe{width:100%;height:100%;border:0;display:block}
.thumb{width:100%;height:100%;object-fit:cover;display:block}
.thumb-list{display:grid;place-items:end center;padding-bottom:12px;
  background:linear-gradient(135deg,var(--brand-deep),var(--brand));color:#fff}
.thumb-list span{font-family:var(--mono);font-size:.64rem;letter-spacing:.16em;text-transform:uppercase;
  opacity:.85;background:rgba(0,0,0,.28);padding:3px 9px;border-radius:99px}
.play{position:absolute;inset:0;margin:auto;width:54px;height:38px;border-radius:10px;border:0;
  background:#ff0000;color:#fff;display:grid;place-items:center;font-size:1rem;transition:transform .15s}
.vid-frame:hover .play{transform:scale(1.09)}
.vid-meta{display:flex;align-items:center;gap:8px;padding:10px 12px;font-size:.84rem}
.vid-meta b{flex:1;min-width:0;font-weight:600;line-height:1.35}
.seen{font-size:.7rem;font-weight:700;padding:4px 10px;border-radius:var(--r-pill);border:1px solid var(--border);
  background:var(--surface);color:var(--text-2);flex:none;white-space:nowrap}
.seen[aria-pressed="true"]{background:var(--success-soft);color:var(--success);border-color:var(--success)}

/* ---------------------------------------------------------------- terminal */
.term{background:var(--code-bg);border:1px solid var(--code-line);border-radius:12px;padding:14px 16px;
  font-family:var(--mono);font-size:.8rem;color:var(--code-text);line-height:1.85;overflow-x:auto}
.term .u{color:#4ade80}
.term .c{color:#8b93ff}

/* -------------------------------------------------------------------- gate */
#gate{position:fixed;inset:0;z-index:100;background:var(--bg);display:grid;place-items:center;padding:20px;overflow:auto}
#gate[hidden]{display:none}
.gate-card{max-width:430px;width:100%}
.gate-brand{display:flex;align-items:center;gap:11px;margin-bottom:22px}
.gate-card h1{margin-bottom:4px}
.gate-sub{color:var(--primary);font-weight:700;font-size:1rem;margin:0 0 10px}
.gate-card > p{color:var(--text-2);font-size:.92rem;margin:0 0 20px}
.gbtn{display:flex;align-items:center;justify-content:center;gap:10px;font-size:.95rem;font-weight:700;
  background:var(--brand);color:#000;border:0;border-radius:12px;padding:14px 20px;width:100%}
.gbtn:hover{background:var(--brand-light)}
.gbtn .gwrap{width:20px;height:20px;border-radius:50%;background:#fff;display:grid;place-items:center;flex:none}
.gate-err{color:var(--error);font-size:.85rem;margin:14px 0 0;min-height:1em;font-weight:600}
.gate-fine{font-size:.78rem;color:var(--text-3);margin:16px 0 0}
body.locked{overflow:hidden}

/* ----------------------------------------------------------------- trainer */
.learner{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:15px 18px;box-shadow:var(--shadow-sm);margin:0 0 11px}
.l-head{display:flex;align-items:center;gap:13px;flex-wrap:wrap}
.l-id{flex:1;min-width:150px;line-height:1.35}
.l-id b{display:block;font-size:.95rem}
.l-id span{font-size:.79rem;color:var(--text-3)}
.l-num{text-align:right;min-width:60px}
.l-num b{display:block;font-size:1.05rem;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.l-num small{font-size:.68rem;color:var(--text-3);font-weight:600;text-transform:uppercase;letter-spacing:.05em}
.l-when{font-size:.75rem;color:var(--text-3);min-width:78px;text-align:right}
.l-bar{height:6px;border-radius:99px;background:var(--surface-3);overflow:hidden;margin:12px 0 10px}
.l-bar i{display:block;height:100%;background:var(--primary);border-radius:99px}
.pips{display:flex;gap:4px;flex-wrap:wrap}
.pip{width:22px;height:22px;border-radius:7px;display:grid;place-items:center;font-size:.64rem;font-weight:700;
  background:var(--surface-2);border:1px solid var(--border);color:var(--text-3);font-family:var(--mono)}
.pip.on{background:var(--success);border-color:var(--success);color:#fff}
.pip.el{border-style:dashed}
.pip.el.on{background:var(--ai);border-color:var(--ai)}

@media (max-width:620px){
  .wordmark span{display:none}
  .who{display:none}
  .path{padding-left:42px}
  .path::before{left:15px}
  .node .dot{left:-42px;width:31px;height:31px;border-radius:9px;font-size:.78rem}
  .l-when{display:none}
}

/* -------------------------------------------------------------- icons */
.ic{display:block;flex:none}
.nav button span[data-icon]{display:grid;place-items:center}
.icon-btn span[data-icon]{display:grid;place-items:center}

/* ------------------------------------------------------- level & badges */
.level{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:16px 18px;box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:15px;flex-wrap:wrap}
.level-ring{width:56px;height:56px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:conic-gradient(var(--brand) var(--p,0%),var(--surface-3) 0);position:relative}
.level-ring::after{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--surface)}
.level-ring b{position:relative;z-index:1;font-size:1.05rem;font-weight:800;letter-spacing:-.02em}
.level-txt{flex:1;min-width:160px}
.level-txt b{display:block;font-size:1.02rem;font-weight:800;letter-spacing:-.02em}
.level-txt span{display:block;font-size:.8rem;color:var(--text-2);margin-top:2px}
.level-xp{text-align:right}
.level-xp b{display:block;font-size:1.25rem;font-weight:800;letter-spacing:-.03em;color:var(--brand);
  font-variant-numeric:tabular-nums}
.level-xp span{font-size:.68rem;color:var(--text-3);text-transform:uppercase;letter-spacing:.09em;font-weight:700}

.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:11px}
.badge{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px 9px;
  text-align:center;display:grid;gap:7px;justify-items:center}
.badge .bi{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--surface-3);color:var(--text-3);border:1px solid var(--border)}
.badge b{font-size:.76rem;font-weight:700;line-height:1.25}
.badge small{font-size:.66rem;color:var(--text-3);line-height:1.3}
.badge.earned{border-color:var(--brand)}
.badge.earned .bi{background:var(--brand);color:#000;border-color:var(--brand)}
.badge.earned b{color:var(--text)}
.badge.locked{opacity:.62}

/* ------------------------------------------------------------- certificate */
/* The original card design, kept as-is, plus corner marks and a verification
   seal. The print block forces A4 landscape and prints only the certificate. */

.cert{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:8px;box-shadow:var(--shadow)}
.cert-inner{position:relative;border:2px solid var(--brand);border-radius:10px;padding:34px 30px;
  text-align:center;background:linear-gradient(160deg,var(--primary-soft) 0%,transparent 42%)}
.cert-inner::before{content:"";position:absolute;inset:7px;border:1px solid rgba(255,142,1,.38);
  border-radius:6px;pointer-events:none}

.crn{position:absolute;width:16px;height:16px;border:2px solid var(--brand);pointer-events:none}
.crn.tl{top:13px;left:13px;border-right:0;border-bottom:0}
.crn.tr{top:13px;right:13px;border-left:0;border-bottom:0}
.crn.bl{bottom:13px;left:13px;border-right:0;border-top:0}
.crn.br{bottom:13px;right:13px;border-left:0;border-top:0}

.cert-brand{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:26px;text-align:left}
.cert-brand b{display:block;font-size:1.05rem;font-weight:800;letter-spacing:-.02em}
.cert-brand span{display:block;font-size:.72rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--primary)}
.cert-pre{color:var(--text-2);font-size:.85rem;margin:0 0 8px;letter-spacing:.04em}
.cert-name{font-size:clamp(1.6rem,5vw,2.3rem);font-weight:800;letter-spacing:-.03em;margin:0 0 18px;
  padding-bottom:14px;border-bottom:1px solid var(--border);line-height:1.15}
.cert-body{color:var(--text-2);font-size:.92rem;max-width:56ch;margin:0 auto 22px;line-height:1.7}
.cert-body b{color:var(--text)}

.cert-seal{display:grid;justify-items:center;gap:5px;margin:0 0 20px}
.seal-ring{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;
  border:2px solid var(--brand);outline:1px solid rgba(255,142,1,.42);outline-offset:3px;
  background:radial-gradient(circle,var(--surface) 55%,rgba(255,142,1,.14))}
.cert-seal small{font-size:.56rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--primary);font-weight:800}

.cert-foot{display:flex;gap:18px;flex-wrap:wrap;justify-content:center;text-align:center;
  border-top:1px solid var(--border);padding-top:18px}
.cert-foot > div{min-width:130px}
.cert-foot b{display:block;font-size:.88rem;font-weight:700}
.cert-foot span{display:block;font-size:.68rem;color:var(--text-3);text-transform:uppercase;
  letter-spacing:.08em;margin-top:3px}
.cert-foot #cert-id{font-family:var(--mono);font-size:.8rem}

@media print{
  @page{size:A4 landscape;margin:0}
  html,body{background:#fff !important;display:block;min-height:0}
  .topbar,.nav,.no-print,#gate{display:none !important}
  .view:not(#v-cert){display:none !important}
  main{padding:0;max-width:none}
  .wrap{padding:0;max-width:none}

  /* one landscape page, certificate only, brand colours preserved */
  *{-webkit-print-color-adjust:exact !important;print-color-adjust:exact !important}
  .cert{box-shadow:none;border:0;border-radius:0;padding:0;
    break-inside:avoid;page-break-inside:avoid}
  .cert-inner{margin:9mm;padding:10mm 14mm;border-radius:6px;
    min-height:calc(100vh - 18mm);display:flex;flex-direction:column;justify-content:center;
    background:linear-gradient(160deg,rgba(255,142,1,.10) 0%,transparent 42%),#fff}
  .cert-inner,.cert-name,.cert-brand b,.cert-body b,.cert-foot b{color:#101623}
  .cert-body,.cert-pre{color:#3f4654}
  .cert-name{border-bottom-color:rgba(16,22,35,.18)}
  .cert-foot{border-top-color:rgba(16,22,35,.18)}
  .cert-foot span{color:#6b7280}
  .seal-ring{background:radial-gradient(circle,#fff 55%,rgba(255,142,1,.16))}
}

/* --------------------------------------------------------------- quiz */
.quiz{max-width:660px;margin:0 auto}
.quiz-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.quiz-count{font-size:.76rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--text-3)}
.quiz-q{font-size:clamp(1.05rem,2.6vw,1.3rem);font-weight:700;letter-spacing:-.015em;margin:20px 0 18px;line-height:1.35}
.quiz-opts{display:grid;gap:9px}
.opt{display:flex;align-items:center;gap:12px;text-align:left;width:100%;background:var(--surface);
  border:1.5px solid var(--border);border-radius:12px;padding:13px 15px;font-size:.92rem;color:var(--text)}
.opt:hover:not(:disabled){border-color:var(--brand);background:var(--surface-2)}
.opt:disabled{cursor:default}
.opt-k{width:26px;height:26px;border-radius:7px;background:var(--surface-3);color:var(--text-2);
  display:grid;place-items:center;font-size:.76rem;font-weight:800;flex:none}
.opt-t{flex:1}
.opt.right{border-color:var(--success);background:var(--success-soft)}
.opt.right .opt-k{background:var(--success);color:#fff}
.opt.wrong{border-color:var(--error);background:var(--error-soft)}
.opt.wrong .opt-k{background:var(--error);color:#fff}

.quiz-feed{margin-top:16px;border-radius:12px;padding:13px 15px;border:1px solid transparent}
.quiz-feed.ok{background:var(--success-soft);border-color:var(--success)}
.quiz-feed.no{background:var(--error-soft);border-color:var(--error)}
.quiz-feed b{display:block;font-size:.88rem;margin-bottom:4px}
.quiz-feed.ok b{color:var(--success)}
.quiz-feed.no b{color:var(--error)}
.quiz-feed p{margin:0;font-size:.86rem;color:var(--text-2);line-height:1.6}
.quiz-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}

.quiz-result{text-align:center;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-card);padding:30px 22px;display:grid;justify-items:center;gap:5px}
.quiz-result.pass{border-color:var(--success)}
.quiz-result.fail{border-color:var(--warn)}
.res-ic{width:60px;height:60px;border-radius:50%;display:grid;place-items:center;margin-bottom:6px}
.quiz-result.pass .res-ic{background:var(--success-soft);color:var(--success)}
.quiz-result.fail .res-ic{background:var(--warn-soft);color:var(--warn)}
.quiz-result b{font-size:2.6rem;font-weight:800;letter-spacing:-.04em;line-height:1}
.res-sub{font-size:.82rem;color:var(--text-2)}
.res-msg{font-size:.9rem;color:var(--text-2);max-width:46ch;margin:10px 0 0}
.quiz-rev-h{margin:26px 0 11px;font-size:1rem}
.quiz-rev{display:grid;gap:9px}
.rev{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--warn);
  border-radius:0 12px 12px 0;padding:13px 15px}
.rev b{display:block;font-size:.88rem;margin-bottom:7px;line-height:1.4}
.rev-a{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:700;
  color:var(--success);background:var(--success-soft);padding:3px 9px;border-radius:99px}
.rev p{margin:8px 0 0;font-size:.84rem;color:var(--text-2);line-height:1.6}

/* ---------------------------------------------------------- scorecard */
.score-row{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--border);
  border-radius:12px;padding:11px 14px;margin:0 0 8px}
.score-row .sn{width:30px;height:30px;border-radius:9px;background:var(--surface-3);color:var(--text-3);
  display:grid;place-items:center;font-size:.76rem;font-weight:800;font-family:var(--mono);flex:none}
.score-row.passed .sn{background:var(--success);color:#fff}
.score-row .st{flex:1;min-width:0}
.score-row .st b{display:block;font-size:.88rem;font-weight:700;line-height:1.3}
.score-row .st span{font-size:.72rem;color:var(--text-3)}
.score-row .sv{font-size:1.05rem;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;flex:none}
.score-row.passed .sv{color:var(--success)}
.score-row.attempted .sv{color:var(--warn)}
.score-row.untaken .sv{color:var(--text-3);font-size:.8rem;font-weight:600}
.score-row .sgo{flex:none}

/* -------------------------------------------------------------- briefs */
.brief{border:1px solid var(--primary-line);background:var(--primary-soft);border-radius:12px;
  padding:15px 17px;margin:18px 0 4px}
.brief-head{display:flex;align-items:baseline;gap:9px;flex-wrap:wrap;margin-bottom:13px}
.brief-head b{font-size:.98rem;font-weight:800;letter-spacing:-.01em}
.brief-head > span:last-child{font-size:.78rem;color:var(--text-2)}
.mail{background:var(--surface);border:1px solid var(--border);border-radius:10px;
  padding:14px 16px;margin-bottom:6px}
.mail-h{border-bottom:1px solid var(--border);padding-bottom:9px;margin-bottom:11px;display:grid;gap:2px}
.mail-from{font-size:.84rem;font-weight:700}
.mail-sub{font-size:.76rem;color:var(--text-3)}
.mail p{margin:0 0 9px;font-size:.88rem;line-height:1.65;color:var(--text-2)}
.mail p:last-child{margin-bottom:0}
.brief h4{margin-top:15px}
.brief-note{display:block;margin-top:8px;font-size:.8rem;color:var(--text-2);font-style:italic}

/* trainer-only key */
.key{border:1px solid var(--warn);background:var(--warn-soft);border-radius:12px;padding:14px 16px;margin:0 0 10px}
.key h4{font-size:.72rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  color:var(--warn);margin:14px 0 8px}
.key h4:first-child{margin-top:0}
.key ul{margin:0;padding-left:19px}
.key li{font-size:.86rem;line-height:1.6;margin:6px 0;color:var(--text)}
.key dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:5px 12px;font-size:.84rem}
.key dt{font-weight:700;white-space:nowrap}
.key dd{margin:0;color:var(--text-2)}
.rub{display:grid;gap:6px}
.rub-row{display:flex;align-items:baseline;gap:10px;font-size:.85rem;background:var(--surface);
  border:1px solid var(--border);border-radius:9px;padding:9px 12px}
.rub-row b{flex:none;min-width:150px}
.rub-w{flex:none;font-weight:800;color:var(--warn);font-variant-numeric:tabular-nums}
.rub-row span{color:var(--text-2);line-height:1.5}

/* trainer quiz breakdown */
.qgrid{display:flex;gap:4px;flex-wrap:wrap;margin-top:9px}
.qchip{font-family:var(--mono);font-size:.62rem;font-weight:700;padding:3px 7px;border-radius:7px;
  border:1px solid var(--border);background:var(--surface-2);color:var(--text-3)}
.qchip.pass{background:var(--success-soft);border-color:var(--success);color:var(--success)}
.qchip.fail{background:var(--warn-soft);border-color:var(--warn);color:var(--warn)}

/* marking-key upload */
.keyup{display:flex;align-items:center;gap:11px;flex-wrap:wrap;margin-top:12px}
.keyup label.btn{cursor:pointer}
.keyup .muted{font-size:.82rem}