:root{
  --bg:#f6f8fc;--bg2:#eef3fb;--card:#ffffff;--card2:#f9fbff;--text:#172033;--muted:#6b768a;--soft:#8b96a8;--line:#dde5f0;--line2:#edf1f7;--btn:#315cf6;--btn2:#2447c7;--danger:#b42318;--ok:#078447;--shadow:0 24px 70px rgba(23,32,51,.09);--shadow2:0 10px 30px rgba(23,32,51,.08);--radius:24px;--radius-sm:16px;--max:1080px
}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial;background:radial-gradient(900px 460px at 16% -8%,rgba(49,92,246,.14),transparent 58%),radial-gradient(720px 420px at 90% 0%,rgba(101,137,255,.1),transparent 55%),linear-gradient(180deg,var(--bg) 0%,var(--bg2) 100%);color:var(--text);min-height:100vh;display:flex;flex-direction:column;line-height:1.5}
a{color:inherit}.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 22px;border-bottom:1px solid rgba(221,229,240,.82);background:rgba(246,248,252,.82);backdrop-filter:blur(18px)}.brand{display:flex;gap:12px;align-items:center;min-width:0}.brandmark{width:38px;height:38px;border-radius:0;display:grid;place-items:center;background:transparent;box-shadow:none;color:white;text-decoration:none;font-weight:950;letter-spacing:-.04em;overflow:visible;line-height:0}
.brandmark img{width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.brandlink{display:flex;flex-direction:column;text-decoration:none;line-height:1.06;min-width:0}.brandname{font-weight:950;letter-spacing:-.03em;font-size:17px}.brandtag{font-size:12px;color:var(--muted);font-weight:700;margin-top:3px;white-space:nowrap}.release{display:none}.nav{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.navlink{color:var(--muted);text-decoration:none;padding:9px 11px;border-radius:999px;border:1px solid transparent;font-weight:800;font-size:14px}.navlink:hover{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.55)}.navlink-primary{background:var(--text);color:#fff;border-color:var(--text);box-shadow:var(--shadow2)}.navlink-primary:hover{background:#0f172a;color:#fff}.pill{padding:7px 9px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.78);color:var(--text);font-size:13px;font-weight:850}.pill-btn{cursor:pointer;display:inline-flex;align-items:center;gap:8px}.acct-avatar{width:24px;height:24px;border-radius:999px;display:grid;place-items:center;background:#edf2ff;color:var(--btn);font-weight:950}.pill-btn .chev{opacity:.65}.acct{position:relative;display:inline-flex;align-items:center}.dropdown{position:absolute;right:0;top:calc(100% + 10px);min-width:230px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);box-shadow:var(--shadow);padding:8px;display:none;z-index:50}.dropdown.open{display:block}.dropdown-item{width:100%;text-align:left;border:0;border-radius:13px;padding:11px 12px;background:transparent;color:var(--text);cursor:pointer;font-weight:850}.dropdown-item:hover{background:var(--card2)}.dropdown-item.danger{color:var(--danger)}.dropdown-item.danger:hover{background:rgba(180,35,24,.08)}.container{max-width:var(--max);margin:0 auto;padding:26px 18px 32px;flex:1;width:100%}.grid{display:grid;grid-template-columns:1.14fr .86fr;gap:18px}@media(max-width:860px){.grid{grid-template-columns:1fr}.brandtag{display:none}.topbar{padding:12px 14px}.nav{gap:6px}.navlink{padding:8px 9px;font-size:13px}}.card{border:1px solid rgba(221,229,240,.95);background:rgba(255,255,255,.86);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);position:relative;overflow:hidden}.card:before{content:"";position:absolute;inset:0 0 auto 0;height:1px;background:linear-gradient(90deg,transparent,rgba(49,92,246,.28),transparent)}.h1{font-size:28px;margin:0 0 8px;font-weight:950;letter-spacing:-.04em}.h2{font-size:19px;margin:0 0 6px;font-weight:950;letter-spacing:-.02em}.label{font-size:12px;color:var(--muted);margin:12px 0 6px;font-weight:900;letter-spacing:.02em;text-transform:uppercase}.sep{height:1px;background:var(--line2);margin:16px 0}.small{font-size:13px;color:var(--muted)}.muted{color:var(--muted)}.row{display:flex;gap:12px;flex-wrap:wrap}.row.wrap{flex-wrap:wrap}.btn{border:0;border-radius:15px;padding:11px 15px;background:linear-gradient(180deg,var(--btn),var(--btn2));color:white;font-weight:900;font-size:16px;line-height:1.2;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;touch-action:manipulation;box-shadow:0 12px 28px rgba(49,92,246,.2)}.btn:hover{transform:translateY(-1px)}.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--text);box-shadow:none}.btn.danger{background:var(--danger)}.input,select,textarea{width:100%;padding:12px 13px;border-radius:15px;border:1px solid var(--line);background:#fff;color:var(--text);font:inherit;font-size:16px;line-height:1.35;outline:none;box-shadow:0 1px 0 rgba(23,32,51,.02)}.input:focus,select:focus,textarea:focus{border-color:rgba(49,92,246,.55);box-shadow:0 0 0 4px rgba(49,92,246,.1)}.center{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 180px)}.authbox{width:460px;max-width:94vw}.auth-kicker{display:inline-flex;gap:7px;align-items:center;border:1px solid var(--line);border-radius:999px;padding:6px 10px;background:#fff;color:var(--muted);font-size:12px;font-weight:900;margin-bottom:12px}.auth-note{margin-top:14px;padding:12px 13px;border-radius:16px;background:#f5f8ff;border:1px solid #e3eaff;color:var(--muted);font-size:13px}.kpi{flex:1;min-width:160px;border:1px solid var(--line);border-radius:18px;padding:15px;background:linear-gradient(180deg,#fff,var(--card2))}.kpi .n{font-size:25px;font-weight:950;letter-spacing:-.04em}.kpi .l{font-size:12px;color:var(--muted);font-weight:800}.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 11px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:12px;font-weight:900}.quizprompt{font-size:30px;font-weight:950;margin:18px 0 8px;letter-spacing:-.045em}.result{padding:12px 14px;border-radius:16px;border:1px solid var(--line);background:#fff;font-weight:800}.result.good{border-color:rgba(7,132,71,.35);background:rgba(7,132,71,.06);color:#075e35}.result.bad{border-color:rgba(180,35,24,.32);background:rgba(180,35,24,.06);color:#8f1d14}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}@media(max-width:860px){.stats-grid{grid-template-columns:1fr}}.stats-filters{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:12px;align-items:end}@media(max-width:860px){.stats-filters{grid-template-columns:1fr}}.tablewrap{overflow:auto;border:1px solid var(--line);border-radius:18px;background:#fff}.table{width:100%;border-collapse:collapse;min-width:760px}.table th,.table td{padding:11px 12px;border-bottom:1px solid var(--line2);text-align:left;vertical-align:middle}.table th{font-size:12px;color:var(--muted);font-weight:950;letter-spacing:.02em;position:sticky;top:0;background:rgba(249,251,255,.92);backdrop-filter:blur(10px)}.table td{font-size:13px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace}.tag{display:inline-flex;align-items:center;padding:4px 8px;border-radius:999px;border:1px solid var(--line);background:#f7f9fd;color:var(--muted);font-size:12px;font-weight:900}.footer{border-top:1px solid var(--line);margin-top:auto;padding:18px}.footer-inner{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}.footer-links{display:flex;gap:12px;align-items:center}.footerlink{color:var(--muted);text-decoration:none;padding:6px 8px;border-radius:10px;border:1px solid transparent;font-weight:800}.footerlink:hover{border-color:var(--line);color:var(--text)}.list{margin:10px 0 0 18px;padding:0}.hero{max-width:var(--max);margin:18px auto 0}.hero-card .lead{color:var(--text);opacity:.92;line-height:1.5}.dash{display:block}.dash-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.dash-split{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:start}@media(max-width:860px){.dash-head{flex-direction:column;align-items:flex-start}.dash-split{grid-template-columns:1fr}}.chart-empty{margin-top:10px;padding:10px 12px;border:1px dashed var(--line);border-radius:12px;color:var(--muted);font-size:12px;background:#fff}.trust-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.trust-pill{font-size:12px;font-weight:900;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 10px}

/* v0.3.51: dark default restored */
:root{
  --bg:#0b0f14;--bg2:#0f172a;--card:#111827;--card2:#0b1220;--text:#e5e7eb;--muted:#9ca3af;--soft:#94a3b8;--line:#1f2937;--line2:#263244;--btn:#2563eb;--btn2:#1d4ed8;--danger:#f87171;--ok:#22c55e;--shadow:0 24px 70px rgba(0,0,0,.35);--shadow2:0 10px 30px rgba(0,0,0,.28)
}
body{background:radial-gradient(1200px 600px at 20% 10%,#14213d 0%,var(--bg) 60%),linear-gradient(180deg,var(--bg),#070a0f);color:var(--text)}
.topbar{border-bottom:1px solid var(--line);background:rgba(11,15,20,.78);backdrop-filter:blur(14px)}
.brandmark{background:transparent;box-shadow:none;color:#fff;border:0}.brandtag{color:var(--muted)}
.navlink{color:var(--muted)}.navlink:hover{border-color:var(--line);color:var(--text);background:rgba(17,24,39,.65)}.navlink-primary{background:var(--btn);border-color:var(--btn);color:#fff}.navlink-primary:hover{background:var(--btn2);color:#fff}
.pill{border-color:var(--line);background:rgba(17,24,39,.72);color:var(--muted)}.acct-avatar{background:#172554;color:#bfdbfe}.dropdown{border-color:var(--line);background:rgba(11,15,20,.94);box-shadow:var(--shadow)}.dropdown-item{color:var(--text)}.dropdown-item:hover{background:rgba(17,24,39,.78)}.dropdown-item.danger{color:#fca5a5}.dropdown-item.danger:hover{background:rgba(248,113,113,.14)}
.card{border-color:var(--line);background:rgba(17,24,39,.78);box-shadow:var(--shadow)}.card:before{background:linear-gradient(90deg,transparent,rgba(37,99,235,.35),transparent)}.sep{background:var(--line)}.small,.muted,.label{color:var(--muted)}
.input,select,textarea{border-color:var(--line);background:rgba(11,15,20,.58);color:var(--text)}.input:focus,select:focus,textarea:focus{border-color:rgba(96,165,250,.65);box-shadow:0 0 0 4px rgba(37,99,235,.14)}
.btn{background:linear-gradient(180deg,var(--btn),var(--btn2));box-shadow:0 12px 28px rgba(37,99,235,.24)}.btn.ghost{background:transparent;border-color:var(--line);color:var(--text);box-shadow:none}.btn.danger{background:#b91c1c;color:#fff}
.kpi{border-color:var(--line);background:rgba(11,15,20,.36)}.badge,.tag,.trust-pill{border-color:var(--line);background:rgba(11,15,20,.35);color:var(--muted)}.auth-kicker{border-color:var(--line);background:rgba(11,15,20,.35);color:var(--muted)}.auth-note{background:rgba(37,99,235,.09);border-color:rgba(96,165,250,.18);color:var(--muted)}
.result{border-color:var(--line);background:rgba(11,15,20,.35)}.result.good{border-color:rgba(34,197,94,.45);background:rgba(34,197,94,.09);color:#bbf7d0}.result.bad{border-color:rgba(248,113,113,.45);background:rgba(248,113,113,.09);color:#fecaca}
.tablewrap{border-color:var(--line);background:rgba(11,15,20,.25)}.table th,.table td{border-bottom-color:rgba(31,41,55,.9)}.table th{background:rgba(11,15,20,.72);color:var(--muted)}.chart-empty{border-color:var(--line);background:rgba(11,15,20,.2);color:var(--muted)}.footer{border-top-color:var(--line)}.footerlink{color:var(--muted)}.footerlink:hover{border-color:var(--line);color:var(--text)}

/* v0.3.53: compact statistics charts */
.chartbox{position:relative;height:220px;max-height:220px;width:100%;}
.chartbox-small{height:170px;max-height:170px;}
.chartbox canvas{display:block;width:100% !important;height:100% !important;}
@media(max-width:860px){.chartbox{height:190px}.chartbox-small{height:160px}}

/* v0.3.54: learning tab puts test start first, especially mobile */
.learn-grid{grid-template-columns:.86fr 1.14fr;align-items:start}
.start-card{order:1}
.progress-card{order:2}
.btn-start-main{min-width:180px}
@media(max-width:860px){
  .learn-grid{grid-template-columns:1fr;gap:14px}
  .start-card{order:1}
  .progress-card{order:2}
  .start-card{padding:18px}
  .start-card .h1{font-size:24px;margin-bottom:6px}
  .btn-start-main{width:100%;padding:14px 16px;font-size:17px;border-radius:16px}
}


/* v0.3.56: statistics UI readability polish */
.stats-page{max-width:1280px;margin:0 auto;width:100%}
.stats-hero{margin-bottom:14px;padding:20px 22px}
.stats-hero .h1{font-size:26px;margin-bottom:4px}
.stats-quickranges{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.rangebtn{border:1px solid var(--line);background:rgba(11,15,20,.35);color:var(--muted);border-radius:999px;padding:8px 11px;font:inherit;font-size:13px;font-weight:900;cursor:pointer}
.rangebtn:hover,.rangebtn.active{border-color:rgba(96,165,250,.6);background:rgba(37,99,235,.18);color:var(--text)}
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:14px}
.kpi{min-width:0;padding:14px 16px}.kpi .n{font-size:24px}.kpi .l{font-size:12px;line-height:1.25}
.stats-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px}.stats-card{padding:18px}.stats-card .h2{font-size:18px}.stats-card .small{font-size:12px;line-height:1.45}
.trend-card{grid-column:auto}.support-card{min-height:0}.stats-summary,.stats-method{margin-top:14px;padding:18px}
.chartbox{height:180px;max-height:180px}.chartbox-small{height:140px;max-height:140px}.chartbox-tiny{height:122px;max-height:122px}.score-card .chartbox{height:170px;max-height:170px}
.tablewrap{max-height:360px}.table{min-width:720px}.table th,.table td{padding:9px 10px}.table td{font-size:12px}.table th{font-size:11px}
@media(max-width:980px){.kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats-grid{grid-template-columns:1fr}.stats-page{max-width:100%}}
@media(max-width:560px){.stats-hero{padding:16px}.stats-filters{gap:8px}.kpi-grid{grid-template-columns:1fr 1fr}.kpi{padding:12px}.kpi .n{font-size:21px}.chartbox{height:165px}.chartbox-tiny{height:116px}.stats-card{padding:15px}.table{min-width:650px}.rangebtn{flex:1;min-width:72px}}


/* v0.3.67: iOS PWA safe-area + dark overscroll fix */
html{
  background:#0b0f14 !important;
  min-height:100%;
  min-height:-webkit-fill-available;
  overscroll-behavior-y:none;
}
body{
  background-color:#0b0f14 !important;
  min-height:100vh;
  min-height:100dvh;
  min-height:-webkit-fill-available;
  overscroll-behavior-y:none;
}
@supports(padding:max(0px)){
  body{
    padding-top:env(safe-area-inset-top);
    padding-left:env(safe-area-inset-left);
    padding-right:env(safe-area-inset-right);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .topbar{
    top:0;
  }
}
body::before{
  content:"";
  position:fixed;
  left:0;
  right:0;
  top:0;
  height:max(env(safe-area-inset-top), 0px);
  background:#0b0f14;
  z-index:1000;
  pointer-events:none;
}
@media(display-mode:standalone){
  html,body{background:#0b0f14 !important;}
}


/* v0.3.72: mobile quiz controls - keep abort away from Next tap area */
.quiz-primary-actions{
  align-items:stretch;
}
.quiz-abort-row{
  align-items:center;
}
.quiz-abort-btn{
  min-height:40px;
}

@media(max-width:560px){
  .quiz-primary-actions{
    display:grid;
    grid-template-columns:1fr;
    gap:10px;
  }
  .quiz-primary-actions .btn{
    width:100%;
    min-height:52px;
    font-size:16px;
    border-radius:16px;
  }
  .quiz-abort-sep{
    margin-top:26px;
  }
  .quiz-abort-row{
    justify-content:center !important;
    padding-bottom:18px;
  }
  .quiz-abort-btn{
    width:100%;
    min-height:48px;
    opacity:.72;
    border-style:dashed;
  }
  #result{
    margin-top:2px;
  }
}


/* v0.3.73: Challenge button for disputed wrong answers */
.quiz-challenge-row{
  margin-top:10px;
  justify-content:flex-start;
}
.quiz-challenge-btn{
  min-height:42px;
  border-style:dashed;
}
@media(max-width:560px){
  .quiz-challenge-row{
    display:grid !important;
    grid-template-columns:1fr;
    gap:10px;
  }
  .quiz-challenge-row[style*="display:none"]{
    display:none !important;
  }
  .quiz-challenge-btn{
    width:100%;
    min-height:50px;
  }
}


/* v0.3.81: quiz UX polish - single primary action, more spacing after feedback */
#result{
  margin-bottom:18px;
}
.quiz-primary-actions .btn{
  min-width:150px;
}
.quiz-challenge-row{
  margin-top:18px;
  margin-bottom:18px;
}
@media(max-width:560px){
  #result{
    margin-top:4px;
    margin-bottom:20px;
  }
  .quiz-primary-actions .btn{
    width:100%;
  }
}

/* v0.3.82: mobile quiz top icons + tighter bottom spacing */
.quiz-card{
  padding-top:24px;
}
.quiz-top-icons{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin:-4px 0 10px;
  min-height:40px;
}
.quiz-icon-btn{
  width:40px;
  height:40px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(11,15,20,.35);
  color:var(--text);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font:inherit;
  font-size:22px;
  font-weight:950;
  line-height:1;
  cursor:pointer;
  touch-action:manipulation;
  box-shadow:none;
}
.quiz-icon-btn:hover{
  transform:translateY(-1px);
  border-color:rgba(96,165,250,.55);
}
.quiz-challenge-icon{
  color:#9ca3af;
  border-color:rgba(156,163,175,.28);
  background:rgba(148,163,184,.08);
}
.quiz-challenge-icon.challenge-available{
  color:#fde047;
  border-color:rgba(250,204,21,.48);
  background:rgba(250,204,21,.14);
  box-shadow:0 0 0 1px rgba(250,204,21,.08),0 8px 22px rgba(250,204,21,.12);
}
.quiz-challenge-icon.challenge-unavailable{
  color:#8b949e;
  border-color:rgba(148,163,184,.22);
  background:rgba(148,163,184,.06);
  opacity:.78;
}
.quiz-close-icon{
  margin-left:auto;
  color:#fecaca;
  border-color:rgba(248,113,113,.32);
  background:rgba(248,113,113,.08);
}
.quiz-meta-row{
  padding-right:0;
}
.quiz-abort-sep,
.quiz-abort-row,
.quiz-challenge-row{
  display:none !important;
}
#result{
  margin-bottom:10px;
}
.quiz-primary-actions{
  margin-top:4px;
}
@media(max-width:560px){
  .container{
    padding-bottom:16px;
  }
  .footer{
    padding-bottom:10px;
  }
  .quiz-card{
    padding:16px 16px 18px;
  }
  .quiz-top-icons{
    margin:-2px 0 8px;
    min-height:38px;
  }
  .quiz-icon-btn{
    width:38px;
    height:38px;
    font-size:21px;
  }
  .quiz-meta-row{
    gap:7px;
  }
  .quiz-meta-row .badge{
    padding:6px 8px;
    font-size:11px;
  }
  #result{
    margin-top:2px;
    margin-bottom:10px;
  }
  .quiz-primary-actions .btn{
    min-height:50px;
  }
}

/* v0.3.84: subtler mobile quiz icons + reduced lower spacing */
.quiz-page .container{
  padding-bottom:8px;
}
.quiz-page .footer{
  padding-top:8px;
  padding-bottom:8px;
}
.quiz-page .footer-inner{
  align-items:center;
}
.quiz-icon-btn{
  width:32px;
  height:32px;
  border:0 !important;
  border-radius:0 !important;
  background:transparent !important;
  box-shadow:none !important;
  padding:0;
  font-size:18px;
  font-weight:850;
  opacity:.72;
}
.quiz-icon-btn:hover{
  transform:none;
  border-color:transparent;
  opacity:.9;
}
.quiz-challenge-icon,
.quiz-challenge-icon.challenge-unavailable{
  color:#7b8490;
  opacity:.55;
}
.quiz-challenge-icon.challenge-available{
  color:#d6a800;
  opacity:.78;
  background:transparent !important;
  box-shadow:none !important;
}
.quiz-close-icon{
  color:#c96a6a;
  opacity:.72;
}
.quiz-top-icons{
  min-height:32px;
  margin:-6px 0 6px;
}
.quiz-primary-actions{
  margin-top:2px;
}
@media(max-width:560px){
  .quiz-page .container{
    padding-top:14px;
    padding-bottom:6px;
  }
  .quiz-page .footer{
    padding-top:6px;
    padding-bottom:6px;
  }
  .quiz-card{
    padding:14px 16px 10px;
  }
  .quiz-top-icons{
    min-height:30px;
    margin:-5px 0 4px;
  }
  .quiz-icon-btn{
    width:30px;
    height:30px;
    font-size:17px;
  }
  #result{
    margin-bottom:7px;
  }
  .quiz-primary-actions .btn{
    min-height:48px;
  }
}


/* v0.3.85: KI challenge back as quiet bottom button; top X only */
.quiz-top-icons{
  justify-content:flex-end;
}
.quiz-close-icon{
  color:#ffffff !important;
  opacity:.82;
}
.quiz-close-icon:hover{
  color:#ffffff !important;
  opacity:1;
}
.quiz-challenge-row{
  display:flex;
  justify-content:center;
  margin-top:14px;
  margin-bottom:0;
}
.quiz-challenge-row[style*="display:none"]{
  display:none !important;
}
.quiz-challenge-btn{
  width:auto;
  min-height:0;
  padding:9px 13px;
  font-size:14px;
  border-radius:13px;
  box-shadow:none;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(148,163,184,.32);
  color:var(--text);
}
.quiz-challenge-btn:hover{
  transform:none;
  background:rgba(255,255,255,.07);
}
#result{
  margin-bottom:0;
}
@media(max-width:560px){
  .quiz-top-icons{
    margin:-5px 0 2px;
  }
  .quiz-close-icon{
    color:#ffffff !important;
  }
  .quiz-challenge-row{
    margin-top:12px;
  }
  .quiz-challenge-btn{
    width:100%;
    min-height:42px;
    font-size:14px;
  }
}

/* v0.3.88: local CSS statistics charts, no external library/CDN */
.css-chart{display:block;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:rgba(11,15,20,.22);padding:12px}



/* v0.3.103: persistent bottom-right KI challenge bolt aligned with primary action */
.quiz-primary-actions{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  width:100%;
}
.quiz-primary-actions .btn{
  flex:0 0 auto;
}
.quiz-challenge-bolt{
  width:44px;
  height:44px;
  border-radius:999px;
  border:1px solid rgba(148,163,184,.35);
  background:rgba(11,15,20,.34);
  color:rgba(229,231,235,.34);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font:inherit;
  font-size:21px;
  line-height:1;
  cursor:default;
  box-shadow:none;
  touch-action:manipulation;
  transition:background .12s ease,border-color .12s ease,color .12s ease,opacity .12s ease,transform .12s ease;
}
.quiz-challenge-bolt.is-available{
  color:#ffffff;
  border-color:rgba(255,255,255,.58);
  background:rgba(255,255,255,.08);
  cursor:pointer;
}
.quiz-challenge-bolt.is-available:hover{
  transform:translateY(-1px);
  background:rgba(255,255,255,.13);
  border-color:rgba(255,255,255,.78);
}
.quiz-challenge-bolt.is-unavailable{
  color:rgba(156,163,175,.38);
  border-color:rgba(148,163,184,.22);
  background:rgba(11,15,20,.18);
  opacity:1;
}

.quiz-challenge-bolt .quiz-bolt-svg{
  width:22px;
  height:22px;
  display:block;
  color:currentColor;
  fill:currentColor;
  pointer-events:none;
}

@media(max-width:560px){
  .quiz-primary-actions{
    display:grid;
    grid-template-columns:1fr 48px;
    align-items:center;
  }
  .quiz-primary-actions .btn{
    width:100%;
  }
  .quiz-challenge-bolt{
    width:48px;
    height:48px;
    font-size:22px;
  }
}

/* v0.3.105: vocab QA pending state on challenge bolt */
.quiz-challenge-bolt.is-pending{
  color:rgba(229,231,235,.62);
  border-color:rgba(148,163,184,.42);
  background:rgba(148,163,184,.10);
  cursor:default;
}
.dropdown-meta{padding:7px 12px 9px;color:var(--muted);font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.03em}.dropdown a.dropdown-item{display:block;text-decoration:none;box-sizing:border-box}.dropdown a.dropdown-item:hover{text-decoration:none}

/* v0.3.114: pronunciation audio buttons */
.quizprompt-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.quizprompt-row .quizprompt {
  flex: 1;
}
.tts-btn,
.tts-inline-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 900;
  line-height: 1;
}
.tts-btn {
  width: 42px;
  height: 42px;
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.tts-inline-btn {
  margin-left: 8px;
  padding: 5px 8px;
  font-size: 14px;
  vertical-align: baseline;
}
.tts-btn:hover,
.tts-inline-btn:hover {
  border-color: rgba(49,92,246,.55);
  box-shadow: 0 0 0 4px rgba(49,92,246,.08);
}
.tts-btn.is-loading,
.tts-inline-btn.is-loading {
  border-color: rgba(49,92,246,.68);
  box-shadow: 0 0 0 1px rgba(49,92,246,.58);
  animation: ttsPulse .9s ease-in-out infinite;
}
.tts-btn.is-playing,
.tts-inline-btn.is-playing {
  border-color: rgba(49,92,246,.68);
  box-shadow: 0 0 0 1px rgba(49,92,246,.58);
  animation: none;
}
.tts-btn:disabled:not(.is-loading):not(.is-playing),
.tts-inline-btn:disabled:not(.is-loading):not(.is-playing) {
  opacity: .55;
  cursor: not-allowed;
}
.tts-btn.is-loading,
.tts-btn.is-playing,
.tts-inline-btn.is-loading,
.tts-inline-btn.is-playing {
  cursor: wait;
}
@keyframes ttsPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 1px rgba(49,92,246,.48);
  }
  50% {
    transform: scale(1.025);
    box-shadow: 0 0 0 1px rgba(49,92,246,.86);
  }
}
@media (prefers-color-scheme: dark) {
  .tts-btn,
  .tts-inline-btn {
    background: rgba(11,15,20,.35);
    color: var(--text);
    border-color: var(--line);
  }
}