.quizrx{--bg-4:color-mix(in oklab, var(--bg-3) 90%, var(--ink) 7%);--good:#1cc27f;--bad:#fa6863;--info:#249ff3;--warn:#efa831;--accent:#249ff3;--accent-tint:color-mix(in oklch, var(--accent) 13%, var(--bg-2));--accent-tint-2:color-mix(in oklch, var(--accent) 20%, var(--bg-2));--accent-line:color-mix(in oklch, var(--accent) 42%, var(--line));--accent-line-2:color-mix(in oklch, var(--accent) 70%, var(--line-2));--accent-ink:color-mix(in oklch, var(--accent) 32%, var(--ink));--accent-shadow:color-mix(in oklch, var(--accent) 35%, transparent);--on-accent:color-mix(in oklch, var(--accent) 18%, #05060a);--good-tint:color-mix(in oklch, var(--good) 13%, var(--bg-2));--good-line:color-mix(in oklch, var(--good) 50%, var(--line));--bad-tint:color-mix(in oklch, var(--bad) 13%, var(--bg-2));--bad-line:color-mix(in oklch, var(--bad) 50%, var(--line));--warn-tint:color-mix(in oklch, var(--warn) 14%, var(--bg-2));--rx-r-sm:8px;--rx-r:12px;--rx-r-lg:16px;--rx-mono:var(--font-geist-mono), ui-monospace, "SF Mono", monospace;--rx-ease:cubic-bezier(.22, .61, .36, 1);--rx-dur:.32s;color:var(--ink)}@supports (color:lab(0% 0 0)){.quizrx{--accent:lab(62.3805% -10.5172 -52.0037)}}.quizrx.rx-fill{height:100%}@media (prefers-reduced-motion:reduce){.quizrx *{transition-duration:.001ms!important;animation-duration:.001ms!important}}.quizrx .rx-runner{flex-direction:column;height:100%;min-height:0;display:flex}.quizrx .rx-col{width:100%;max-width:760px;margin:0 auto}.quizrx .phead{padding:16px 0}.quizrx .phead .kicker{color:var(--accent-ink);align-items:center;gap:8px;font-size:13px;font-weight:500;display:inline-flex}.quizrx .phead .kicker .ic{color:var(--accent)}.quizrx .phead h1{letter-spacing:-.02em;color:var(--ink);margin-top:12px;font-size:30px;font-weight:600;line-height:1.12}.quizrx .phead p{color:var(--ink-3);max-width:56ch;margin-top:8px;font-size:15px}.quizrx .btn{appearance:none;cursor:pointer;font:inherit;border-radius:var(--rx-r);border:1px solid var(--line-2);background:var(--bg-3);color:var(--ink-2);justify-content:center;align-items:center;gap:9px;padding:11px 18px;font-weight:500;transition:background .18s,border-color .18s,color .18s,transform .12s,box-shadow .18s;display:inline-flex}.quizrx .btn:hover{background:var(--bg-4);color:var(--ink);border-color:var(--ink-5)}.quizrx .btn:active{transform:translateY(1px)}.quizrx .btn:disabled{opacity:.4;cursor:not-allowed}.quizrx .btn.ghost{border-color:var(--line);background:0 0}.quizrx .btn.ghost:hover{background:var(--bg-3)}.quizrx .btn.primary{background:var(--accent);color:var(--on-accent);box-shadow:0 6px 22px -8px var(--accent-shadow);border-color:#0000;font-weight:600}.quizrx .btn.primary:hover{background:color-mix(in oklch, var(--accent) 88%, white);color:var(--on-accent)}.quizrx .btn.danger{color:var(--bad);border-color:color-mix(in oklch, var(--bad) 40%, var(--line));background:0 0}.quizrx .btn.danger:hover{background:var(--bad-tint);color:var(--bad)}.quizrx .btn.lg{border-radius:var(--rx-r-lg);padding:14px 22px;font-size:16px}.quizrx .kbd{font-family:var(--rx-mono);color:var(--ink-3);background:var(--bg);border:1px solid var(--line-2);border-bottom-width:2px;border-radius:6px;padding:3px 6px 4px;font-size:11px;line-height:1}.quizrx .chip{background:var(--bg-3);border:1px solid var(--line);color:var(--ink-3);border-radius:99px;align-items:center;gap:7px;padding:5px 11px;font-size:12.5px;font-weight:500;display:inline-flex}.quizrx .chip.accent{background:var(--accent-tint);border-color:var(--accent-line);color:var(--accent-ink)}.quizrx .ic{vertical-align:middle;flex:none;display:inline-block}.quizrx .muted{color:var(--ink-4)}.quizrx .composer{padding-bottom:28px}.quizrx .cgroup{margin-top:22px}.quizrx .cgroup>.label{color:var(--ink-2);margin-bottom:4px;font-size:14px;font-weight:600;display:block}.quizrx .cgroup>.hint{color:var(--ink-4);margin-bottom:14px;font-size:13px;display:block}.quizrx .group-head{justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:14px;display:flex}.quizrx .group-head .label{color:var(--ink-2);margin-bottom:2px;font-size:14px;font-weight:600;display:block}.quizrx .group-head .hint{color:var(--ink-4);margin-bottom:0;font-size:13px;display:block}.quizrx .link-btn{appearance:none;color:var(--accent-ink);font:inherit;cursor:pointer;white-space:nowrap;background:0 0;border:0;padding:4px 2px;font-size:13px;font-weight:500}.quizrx .link-btn:hover{text-decoration:underline}.quizrx .count-big{letter-spacing:-.02em;color:var(--accent-ink);font-variant-numeric:tabular-nums;font-size:30px;font-weight:600;line-height:1}.quizrx .cbox{border:1.5px solid var(--line-2);width:19px;height:19px;color:var(--on-accent);background:var(--bg);border-radius:6px;flex:none;place-items:center;transition:all .15s;display:grid}.quizrx .ch-num{width:20px;height:20px;color:var(--ink-3);background:var(--bg-4);border:1px solid var(--line-2);font-variant-numeric:tabular-nums;border-radius:6px;flex:none;place-items:center;font-size:11px;font-weight:600;display:grid}.quizrx .ch-chips{flex-wrap:wrap;gap:8px;display:flex}.quizrx .ch-chip{cursor:pointer;appearance:none;font:inherit;background:var(--bg-2);border:1px solid var(--line);color:var(--ink-2);border-radius:10px;align-items:center;gap:9px;padding:8px 13px 8px 9px;font-size:13.5px;font-weight:500;transition:border-color .15s,background .15s;display:inline-flex}.quizrx .ch-chip:hover:not(:disabled){border-color:var(--ink-5);background:var(--bg-3)}.quizrx .ch-chip:disabled{opacity:.4;cursor:not-allowed}.quizrx .ch-chip[aria-pressed=true]{border-color:var(--accent-line-2);background:var(--accent-tint)}.quizrx .ch-chip[aria-pressed=true] .cbox{background:var(--accent);border-color:#0000}.quizrx .ch-chip[aria-pressed=true] .ch-num{color:var(--accent-ink);border-color:var(--accent-line)}.quizrx .ch-chip-title{color:var(--ink);white-space:nowrap}.quizrx .ch-chip[aria-pressed=true] .ch-chip-title{color:var(--accent-ink)}.quizrx .ch-chip-n{color:var(--ink-5);font-variant-numeric:tabular-nums;font-size:11px}.quizrx .type-chips{flex-wrap:wrap;gap:9px;display:flex}.quizrx .type-chip{cursor:pointer;appearance:none;font:inherit;background:var(--bg-2);border:1px solid var(--line);color:var(--ink-3);border-radius:99px;align-items:center;gap:9px;padding:9px 15px 9px 11px;font-size:14px;font-weight:500;transition:all .15s;display:inline-flex}.quizrx .type-chip:hover{border-color:var(--ink-5);color:var(--ink)}.quizrx .type-chip .ic{color:var(--ink-4);transition:color .15s}.quizrx .type-chip[aria-pressed=true]{border-color:var(--accent-line-2);background:var(--accent-tint);color:var(--accent-ink)}.quizrx .type-chip[aria-pressed=true] .ic{color:var(--accent)}.quizrx .type-chip[aria-pressed=true] .cbox{background:var(--accent);border-color:#0000}.quizrx .slider{appearance:none;background:var(--bg-4);cursor:pointer;border-radius:99px;outline:none;width:100%;height:6px;margin:8px 0 0}.quizrx .slider::-webkit-slider-runnable-track{background:linear-gradient(to right, var(--accent) 0%, var(--accent) var(--fill,50%), var(--bg-4) var(--fill,50%));border-radius:99px;height:6px}.quizrx .slider::-webkit-slider-thumb{appearance:none;background:var(--accent);border:3px solid var(--bg);cursor:pointer;border-radius:50%;width:22px;height:22px;margin-top:-8px;box-shadow:0 2px 8px #00000080}.quizrx .slider::-moz-range-track{background:var(--bg-4);border-radius:99px;height:6px}.quizrx .slider::-moz-range-progress{background:var(--accent);border-radius:99px;height:6px}.quizrx .slider::-moz-range-thumb{background:var(--accent);border:3px solid var(--bg);cursor:pointer;border-radius:50%;width:22px;height:22px}.quizrx .slider:disabled{opacity:.4}.quizrx .slider-ends{color:var(--ink-5);font-variant-numeric:tabular-nums;justify-content:space-between;margin-top:8px;font-size:11.5px;display:flex}.quizrx .toggle-row{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--rx-r);justify-content:space-between;align-items:center;gap:16px;padding:16px 18px;display:flex}.quizrx .toggle-row .tx h4{color:var(--ink);font-size:14px;font-weight:600}.quizrx .toggle-row .tx p{color:var(--ink-4);max-width:52ch;margin-top:3px;font-size:12.5px}.quizrx .switch{appearance:none;cursor:pointer;background:var(--line-2);border:0;border-radius:99px;flex:none;width:50px;height:29px;transition:background .2s;position:relative}.quizrx .switch:after{content:"";background:var(--ink-2);width:23px;height:23px;transition:transform .2s var(--rx-ease), background .2s;border-radius:50%;position:absolute;top:3px;left:3px}.quizrx .switch[aria-checked=true]{background:var(--accent)}.quizrx .switch[aria-checked=true]:after{background:var(--on-accent);transform:translate(21px)}.quizrx .summary{background:linear-gradient(to top, var(--bg) 60%, transparent);z-index:20;padding:22px 0 8px;position:sticky;bottom:0;left:0;right:0}.quizrx .summary-inner{background:var(--bg-3);border:1px solid var(--line-2);border-radius:var(--rx-r-lg);align-items:center;gap:18px;padding:14px 16px 14px 20px;display:flex;box-shadow:0 18px 50px -22px #000000e6}.quizrx .summary-inner .sumtext{flex:1;min-width:0}.quizrx .summary-inner .sumtext .l1{color:var(--ink-4);text-transform:uppercase;letter-spacing:.07em;font-size:12px}.quizrx .summary-inner .sumtext .l2{color:var(--ink);margin-top:3px;font-size:15px;font-weight:500}.quizrx .summary-inner .sumtext .l2 b{color:var(--accent-ink);font-weight:600}.quizrx .topbar{flex:none;padding:16px 0 0}.quizrx .topbar-inner{max-width:760px;margin:0 auto}.quizrx .rail{border-radius:99px;gap:3px;height:6px;display:flex}.quizrx .rail button{background:var(--bg-4);cursor:pointer;border:0;border-radius:99px;flex:1;height:100%;padding:0;transition:background .3s,filter .15s}.quizrx .rail button:hover{filter:brightness(1.4)}.quizrx .rail button.done{background:var(--accent)}.quizrx .rail button.correct{background:var(--good)}.quizrx .rail button.incorrect{background:var(--bad)}.quizrx .rail button.current{background:var(--accent-line-2);box-shadow:0 0 0 1px var(--accent) inset}.quizrx .topmeta{justify-content:space-between;align-items:center;gap:10px;margin-top:13px;display:flex}.quizrx .topmeta .left{align-items:center;gap:10px;min-width:0;display:flex}.quizrx .topmeta .pos{color:var(--ink-3);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:14px}.quizrx .topmeta .pos b{color:var(--ink);font-weight:600}.quizrx .qstage{flex:auto;min-height:0;padding:22px 0 0;overflow-y:auto}.quizrx .qwrap{max-width:760px;margin:0 auto}.quizrx .qcard{animation:rx-qin var(--rx-dur) var(--rx-ease)}@keyframes rx-qin{0%{transform:translateY(8px)}to{transform:none}}.quizrx .q-type{color:var(--ink-4);text-transform:uppercase;letter-spacing:.06em;align-items:center;gap:7px;font-size:12px;font-weight:500;display:inline-flex}.quizrx .q-text{letter-spacing:-.012em;color:var(--ink);text-wrap:pretty;margin-top:14px;font-size:23px;font-weight:500;line-height:1.34}.quizrx .q-source{color:var(--ink-5);margin-top:10px;font-size:12.5px}.quizrx .options{flex-direction:column;gap:10px;margin-top:22px;display:flex}.quizrx .option{cursor:pointer;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--rx-r);text-align:left;font:inherit;color:var(--ink-2);appearance:none;align-items:center;gap:14px;padding:15px 16px;transition:border-color .15s,background .15s,transform .1s;display:flex;position:relative}.quizrx .option:hover:not(.locked){border-color:var(--ink-5);background:var(--bg-3)}.quizrx .option .key{background:var(--bg-4);border:1px solid var(--line-2);width:28px;height:28px;font-family:var(--rx-mono);color:var(--ink-3);border-radius:8px;flex:none;place-items:center;font-size:13px;transition:all .15s;display:grid}.quizrx .option .otext{flex:1;min-width:0;font-size:15.5px;line-height:1.4}.quizrx .option .mark{opacity:0;flex:none;transition:opacity .15s;display:inline-flex}.quizrx .option[aria-pressed=true]{border-color:var(--accent-line-2);background:var(--accent-tint)}.quizrx .option[aria-pressed=true] .key{background:var(--accent);color:var(--on-accent);border-color:#0000;font-weight:600}.quizrx .option[aria-pressed=true] .otext{color:var(--accent-ink)}.quizrx .option.locked{cursor:default}.quizrx .option.correct{border-color:var(--good-line);background:var(--good-tint)}.quizrx .option.correct .key{background:var(--good);color:#04130c;border-color:#0000}.quizrx .option.correct .otext{color:color-mix(in oklch, var(--good) 32%, var(--ink))}.quizrx .option.correct .mark{opacity:1;color:var(--good)}.quizrx .option.incorrect{border-color:var(--bad-line);background:var(--bad-tint)}.quizrx .option.incorrect .key{background:var(--bad);color:#1a0606;border-color:#0000}.quizrx .option.incorrect .otext{color:color-mix(in oklch, var(--bad) 30%, var(--ink))}.quizrx .option.incorrect .mark{opacity:1;color:var(--bad)}.quizrx .option.missed{border-color:var(--good-line);border-style:dashed}.quizrx .option.missed .mark{opacity:1;color:var(--good)}.quizrx .feedback{min-height:88px;margin-top:18px}.quizrx .feedback-inner{border-radius:var(--rx-r);border:1px solid var(--line);background:var(--bg-2);animation:rx-fin .3s var(--rx-ease);align-items:flex-start;gap:13px;padding:15px 17px;display:flex}@keyframes rx-fin{0%{transform:translateY(5px)}to{transform:none}}.quizrx .feedback-inner.good{border-color:var(--good-line);background:var(--good-tint)}.quizrx .feedback-inner.bad{border-color:var(--bad-line);background:var(--bad-tint)}.quizrx .feedback-inner.info{border-color:color-mix(in oklch, var(--info) 50%, var(--line));background:color-mix(in oklch, var(--info) 13%, var(--bg-2))}.quizrx .feedback-inner .fic{flex:none;margin-top:1px}.quizrx .feedback-inner.good .fic{color:var(--good)}.quizrx .feedback-inner.bad .fic{color:var(--bad)}.quizrx .feedback-inner.info .fic{color:var(--info)}.quizrx .feedback-inner .ftext h5{color:var(--ink);font-size:14px;font-weight:600}.quizrx .feedback-inner .ftext p{color:var(--ink-2);margin-top:4px;font-size:13.5px;line-height:1.5}.quizrx .feedback-inner.good .ftext h5{color:color-mix(in oklch, var(--good) 35%, var(--ink))}.quizrx .feedback-inner.bad .ftext h5{color:color-mix(in oklch, var(--bad) 32%, var(--ink))}.quizrx .answer-field{background:var(--bg);border:1px solid var(--line-2);border-radius:var(--rx-r);width:100%;color:var(--ink);font:inherit;resize:vertical;margin-top:20px;padding:14px 16px;font-size:15.5px;transition:border-color .15s,box-shadow .15s}.quizrx .answer-field:focus{border-color:var(--accent-line-2);box-shadow:0 0 0 3px var(--accent-tint);outline:none}.quizrx .answer-field.mono{font-family:var(--rx-mono);resize:none;font-size:14px;line-height:1.55}.quizrx .navbar{flex:none;padding:14px 0 0}.quizrx .navbar-inner{border-top:1px solid var(--line);align-items:center;gap:12px;max-width:760px;margin:0 auto;padding-top:16px;display:flex}.quizrx .navbar-inner .nspace{flex:1}.quizrx .navbar .hints{color:var(--ink-5);white-space:nowrap;align-items:center;gap:8px;font-size:12px;display:flex}.quizrx .navbar .hints.hide-sm{display:none}@media (min-width:640px){.quizrx .navbar .hints.hide-sm{display:flex}}.quizrx .ovwrap{position:relative}.quizrx .ovpop{z-index:50;background:var(--bg-3);border:1px solid var(--line-2);border-radius:var(--rx-r-lg);width:286px;animation:rx-fin .18s var(--rx-ease);padding:14px;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 20px 60px -20px #000000e6}.quizrx .ovpop-grid{grid-template-columns:repeat(6,1fr);gap:7px;display:grid}.quizrx .ovcell{aspect-ratio:1;border:1px solid var(--line-2);background:var(--bg-2);color:var(--ink-3);cursor:pointer;font-variant-numeric:tabular-nums;appearance:none;border-radius:9px;place-items:center;font-family:inherit;font-size:13px;font-weight:500;transition:all .14s;display:grid;position:relative}.quizrx .ovcell:hover{border-color:var(--ink-5);color:var(--ink)}.quizrx .ovcell.done{background:var(--accent-tint);border-color:var(--accent-line);color:var(--accent-ink)}.quizrx .ovcell.correct{background:var(--good-tint);border-color:var(--good-line);color:color-mix(in oklch, var(--good) 35%, var(--ink))}.quizrx .ovcell.incorrect{background:var(--bad-tint);border-color:var(--bad-line);color:color-mix(in oklch, var(--bad) 32%, var(--ink))}.quizrx .ovcell.current{box-shadow:0 0 0 2px var(--accent);border-color:#0000}.quizrx .ovpop-legend{border-top:1px solid var(--line);color:var(--ink-4);flex-wrap:wrap;gap:12px;margin-top:13px;padding-top:12px;font-size:11.5px;display:flex}.quizrx .ovpop-legend span{align-items:center;gap:6px;display:inline-flex}.quizrx .ovpop-legend i{border:1px solid var(--line-2);border-radius:4px;width:12px;height:12px;display:inline-block}.quizrx .lg-done{background:var(--accent-tint);border-color:var(--accent-line)!important}.quizrx .lg-correct{background:var(--good-tint);border-color:var(--good-line)!important}.quizrx .lg-incorrect{background:var(--bad-tint);border-color:var(--bad-line)!important}.quizrx .results{padding-top:8px;padding-bottom:60px}.quizrx .score-hero{flex-wrap:wrap;align-items:center;gap:32px;padding:12px 0 8px;display:flex}.quizrx .rx-ring{flex:none;width:168px;height:168px;position:relative}.quizrx .rx-ring svg{transform:rotate(-90deg)}.quizrx .rx-ring .rt{text-align:center;place-items:center;display:grid;position:absolute;inset:0}.quizrx .rx-ring .rt .pct{letter-spacing:-.02em;color:var(--accent-ink);font-size:40px;font-weight:600;line-height:1}.quizrx .rx-ring .rt .frac{color:var(--ink-4);font-variant-numeric:tabular-nums;margin-top:5px;font-size:13px}.quizrx .score-hero .stext{flex:1;min-width:240px}.quizrx .score-hero .stext .kicker{color:var(--accent-ink);align-items:center;gap:8px;font-size:13px;font-weight:500;display:inline-flex}.quizrx .score-hero .stext .kicker .ic{color:var(--accent)}.quizrx .score-hero .stext .verdict{letter-spacing:-.02em;color:var(--ink);margin-top:8px;font-size:26px;font-weight:600}.quizrx .score-hero .stext p{color:var(--ink-3);max-width:46ch;margin-top:8px}.quizrx .score-hero .stats{gap:22px;margin-top:20px;display:flex}.quizrx .score-hero .stat .n{font-variant-numeric:tabular-nums;color:var(--ink);font-size:22px;font-weight:600}.quizrx .score-hero .stat .l{color:var(--ink-4);margin-top:2px;font-size:12px}.quizrx .score-hero .stat.good .n{color:var(--good)}.quizrx .score-hero .stat.bad .n{color:var(--bad)}.quizrx .result-actions{flex-wrap:wrap;gap:12px;margin:26px 0 6px;display:flex}.quizrx .review-list{flex-direction:column;gap:14px;margin-top:30px;display:flex}.quizrx .review-list h3{text-transform:uppercase;letter-spacing:.07em;color:var(--ink-4);font-size:13px;font-weight:600}.quizrx .ritem{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--rx-r);padding:16px 18px}.quizrx .ritem .rq{align-items:flex-start;gap:12px;display:flex}.quizrx .ritem .rnum{font-variant-numeric:tabular-nums;border-radius:7px;flex:none;place-items:center;width:26px;height:26px;font-size:13px;font-weight:600;display:grid}.quizrx .ritem .rnum.good{background:var(--good-tint);color:var(--good);border:1px solid var(--good-line)}.quizrx .ritem .rnum.bad{background:var(--bad-tint);color:var(--bad);border:1px solid var(--bad-line)}.quizrx .ritem .rqt{color:var(--ink);font-size:15px;font-weight:500;line-height:1.4}.quizrx .ritem .ra{color:var(--ink-3);flex-direction:column;gap:4px;margin-top:10px;margin-left:38px;font-size:13.5px;display:flex}.quizrx .ritem .ra .lab{color:var(--ink-5)}.quizrx .ritem .ra .ans-good{color:color-mix(in oklch, var(--good) 35%, var(--ink))}.quizrx .ritem .ra .ans-bad{color:color-mix(in oklch, var(--bad) 32%, var(--ink))}.quizrx .ritem .rnum.neutral{background:var(--bg-4);color:var(--ink-3);border:1px solid var(--line)}.quizrx .ritem .ra .ans-neutral{color:var(--ink-2)}