.quiz-reaction{--fx-color:#16b78b;--fx-rgb:22,183,139;--fx-veil:rgba(249,250,251,.9);--fx-ink:#191f28;--fx-muted:#6b7684;--fx-gain:#16a67d;position:fixed;inset:0;z-index:1000;display:grid;place-items:center;overflow:hidden;pointer-events:none;background:var(--fx-veil);backdrop-filter:blur(9px);-webkit-backdrop-filter:blur(9px);color:var(--fx-ink);animation:quiz-fx-veil 2.6s ease both}:root[data-theme=dark] .quiz-reaction{--fx-veil:rgba(16,19,25,.94);--fx-ink:#f2f4f6;--fx-muted:#adb5c2;--fx-gain:#6bdfbd}.quiz-fx-stage{position:relative;z-index:1;width:min(360px,calc(100% - 40px));text-align:center;transform:translateY(-18px)}.quiz-fx-celebration{position:absolute;left:50%;top:50%;width:min(560px,100%);height:440px;transform:translate(-50%,-50%);pointer-events:none}.quiz-fx-celebration i{position:absolute;left:var(--paper-start);top:42%;width:6px;height:11px;border-radius:1.5px;background:var(--paper-color);opacity:0;animation:quiz-fx-confetti 1.85s cubic-bezier(.12,.55,.25,1) var(--paper-delay) both}.quiz-fx-celebration i:nth-child(3n){width:5px;height:5px;border-radius:50%}.quiz-fx-celebration i:nth-child(7n){width:10px;height:10px;clip-path:polygon(50% 0,62% 36%,100% 50%,62% 64%,50% 100%,38% 64%,0 50%,38% 36%)}.quiz-fx-art{position:relative;display:grid;place-items:center;width:210px;height:210px;margin:0 auto 10px}.quiz-fx-aura{position:absolute;inset:-15px;border-radius:50%;background:radial-gradient(circle,rgba(var(--fx-rgb),.14),rgba(var(--fx-rgb),.04) 45%,transparent 70%);animation:quiz-fx-aura 1.7s ease both}.quiz-fx-core{position:relative;display:grid;place-items:center;width:116px;height:116px;color:white;animation:quiz-fx-core 2.4s cubic-bezier(.2,.8,.25,1) both}.quiz-fx-mark{width:116px;height:116px;overflow:visible}.quiz-fx-orbit{position:absolute;width:128px;height:128px;border-left:1px solid rgba(var(--fx-rgb),.1);border-bottom:1px solid rgba(var(--fx-rgb),.1);border-right-color:rgba(var(--fx-rgb),.1);border-top:2px solid rgba(var(--fx-rgb),.7);border-right:1px solid rgba(var(--fx-rgb),.4);border-radius:50%;animation:quiz-fx-charge .65s cubic-bezier(.5,0,.2,1) both}.quiz-fx-wave{position:absolute;width:90px;height:90px;border:1px solid rgba(var(--fx-rgb),.5);border-radius:50%;opacity:0;animation:quiz-fx-wave 1s cubic-bezier(.1,.5,.2,1) .43s both}.quiz-fx-wave-two{border-width:2px;animation-delay:.52s;animation-duration:1.15s}.quiz-fx-sparks{position:absolute;inset:0}.quiz-fx-sparks i{position:absolute;left:50%;top:50%;width:4px;height:4px;margin:-2px;border-radius:50%;background:var(--fx-color);opacity:0;animation:quiz-fx-spark 1.2s cubic-bezier(.15,.6,.2,1) calc(.43s + var(--spark-delay)) both}.quiz-fx-sparks i:nth-child(4n){width:3px;height:9px;border-radius:2px}.quiz-fx-sparks i:nth-child(3n){background:#b0d8d2}.quiz-fx-glint{position:absolute;top:49px;right:43px;width:17px;height:17px;background:#3ecba5;clip-path:polygon(50% 0,62% 36%,100% 50%,62% 64%,50% 100%,38% 64%,0 50%,38% 36%);animation:quiz-fx-glint 1.2s ease .52s both}.quiz-fx-copy{animation:quiz-fx-copy 2.4s ease both}.quiz-fx-label{display:block;color:var(--fx-muted);font-size:17px;font-weight:600;letter-spacing:-.5px}.quiz-fx-amount{display:block;margin-top:9px;color:var(--fx-ink);font-size:52px;line-height:1.2;font-weight:780;letter-spacing:-2px;font-variant-numeric:tabular-nums;animation:quiz-fx-amount .65s cubic-bezier(.2,.8,.2,1) .45s both}.quiz-fx-amount>span{color:var(--fx-gain);font-size:40px;vertical-align:3px;margin-right:3px}.quiz-fx-copy p{margin:15px 0 0;color:var(--fx-muted);font-size:14px;line-height:1.6;letter-spacing:-.3px}.quiz-reaction-miss{--fx-color:#ef6676;--fx-rgb:239,102,118}.quiz-reaction-miss .quiz-fx-core{animation-name:quiz-fx-core-miss}.quiz-reaction-miss .quiz-fx-wave{animation-name:quiz-fx-wave-miss;animation-duration:.75s}.quiz-reaction-miss .quiz-fx-sparks i{width:3px;height:3px;background:#cbd1d9;animation-name:quiz-fx-spark-miss;animation-duration:1s}.quiz-reaction-miss .quiz-fx-sparks i:nth-child(2n){display:none}.quiz-reaction-miss .quiz-fx-aura{opacity:.5}.quiz-fx-miss-title{display:block;margin-top:11px;font-size:28px;font-weight:720;letter-spacing:-1px}@keyframes quiz-fx-veil{0%{opacity:0;visibility:visible}10%,81%{opacity:1;visibility:visible}99%{opacity:0;visibility:visible}to{opacity:0;visibility:hidden}}@keyframes quiz-fx-charge{0%{opacity:0;transform:rotate(-160deg) scale(1.35)}35%{opacity:1}70%{opacity:1;transform:rotate(80deg) scale(.83)}to{opacity:0;transform:rotate(180deg) scale(.6)}}@keyframes quiz-fx-core{0%{opacity:0;transform:scale(.62)}13%{opacity:1;transform:scale(.76)}23%{transform:scale(1.1)}31%,86%{opacity:1;transform:scale(1)}to{opacity:0;transform:translateY(-10px) scale(.98)}}@keyframes quiz-fx-aura{0%{opacity:0;transform:scale(.5)}30%{opacity:1;transform:scale(1.15)}75%,to{opacity:.7;transform:scale(1)}}@keyframes quiz-fx-wave{0%{opacity:.8;transform:scale(.85)}to{opacity:0;transform:scale(2.35)}}@keyframes quiz-fx-spark{0%{opacity:0;transform:rotate(var(--spark-angle)) translateY(-32px) scale(.4)}20%{opacity:.85}65%{opacity:.5}to{opacity:0;transform:rotate(var(--spark-angle)) translateY(calc(0px - var(--spark-distance))) scale(.45)}}@keyframes quiz-fx-glint{0%{opacity:0;transform:scale(.2) rotate(-30deg)}25%{opacity:1;transform:scale(1.15) rotate(0)}to{opacity:0;transform:scale(.5) rotate(30deg)}}@keyframes quiz-fx-copy{0%,17%{opacity:0;transform:translateY(16px)}33%,86%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-8px)}}@keyframes quiz-fx-amount{0%{opacity:0;transform:translateY(16px);filter:blur(3px)}to{opacity:1;transform:translateY(0);filter:blur(0)}}@keyframes quiz-fx-core-miss{0%{opacity:0;transform:scale(.76)}17%{opacity:1;transform:scale(1.03)}23%{transform:translateX(-6px)}27%{transform:translateX(5px)}31%{transform:translateX(-3px)}36%,86%{opacity:1;transform:translateX(0) scale(1)}to{opacity:0;transform:translateY(9px) scale(.96)}}@keyframes quiz-fx-wave-miss{0%{opacity:.4;transform:scale(1.35)}to{opacity:0;transform:scale(.7)}}@keyframes quiz-fx-spark-miss{0%{opacity:0;transform:rotate(var(--spark-angle)) translateY(-48px)}25%{opacity:.5}to{opacity:0;transform:translateY(35px) rotate(var(--spark-angle)) translateY(-65px) scale(.5)}}@keyframes quiz-fx-confetti{0%{opacity:0;transform:translate(0) rotate(0) scale(.5)}10%{opacity:.95}40%{opacity:.9;transform:translate(var(--paper-x),var(--paper-y)) rotate(var(--paper-rotation)) scale(1)}78%{opacity:.7}to{opacity:0;transform:translate(var(--paper-fall-x),var(--paper-fall-y)) rotate(calc(var(--paper-rotation) * 2)) scale(.7)}}@media(prefers-reduced-motion:reduce){.quiz-reaction{display:none}.quiz-reaction *{animation:none!important}}.quiz-page{--quiz-choice:#f5f5f7;--quiz-choice-hover:#eeeef1;--quiz-choice-press:#e6e7eb;--quiz-rule:#e8e8ed;--quiz-success-bg:#edf8f3;--quiz-success-line:#cce8da;--quiz-success-ink:#286c53;--quiz-wrong-bg:#fff1f3;--quiz-wrong-line:#f0d5dc;--quiz-wrong-ink:#9d4056;width:100%;min-width:0;margin:0;color:var(--text);padding:0 0 48px}:root[data-theme=dark] .quiz-page{--quiz-choice:#25272c;--quiz-choice-hover:#2d3036;--quiz-choice-press:#373b43;--quiz-rule:#35383f;--quiz-success-bg:#233d33;--quiz-success-line:#365c4b;--quiz-success-ink:#c1ead4;--quiz-wrong-bg:#402b33;--quiz-wrong-line:#67424e;--quiz-wrong-ink:#f4c6d0}.quiz-performance{justify-content:space-between;gap:22px}.quiz-metal-icon{display:inline-block;vertical-align:middle;flex-shrink:0;overflow:visible}.quiz-accuracy-mark{display:flex;align-items:center;justify-content:center;flex:0 0 60px;width:60px;height:66px}.quiz-accuracy{gap:14px}.quiz-accuracy .paper-studio-identity p{margin:0 0 6px;font-size:12px;line-height:1.5}.quiz-accuracy .paper-studio-identity strong{font-size:28px;font-weight:650;line-height:1.2;letter-spacing:-.7px;font-variant-numeric:tabular-nums}.quiz-accuracy .paper-studio-identity>small{font-size:11px;line-height:1.6}.quiz-daily-summary{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:0}.quiz-daily-summary>div{min-width:0}.quiz-daily-summary>div+div{padding-left:20px;border-left:1px solid var(--studio-rule)}.quiz-daily-summary dt{font-size:12px;line-height:1.5;color:var(--studio-secondary);margin-bottom:8px}.quiz-daily-summary dd{margin:0;font-size:26px;line-height:1.25;font-weight:600;letter-spacing:-.6px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.quiz-daily-summary dd small{font-size:11px;font-weight:400;color:var(--studio-secondary);letter-spacing:0;white-space:nowrap}.quiz-daily-summary div>span{display:block;margin-top:6px;font-size:11px;line-height:1.5;color:var(--studio-secondary)}.quiz-reset-note{justify-content:space-between;gap:6px}.quiz-overview{margin-bottom:20px}.quiz-layout-shell{width:100%;min-width:0;container:quiz-area/inline-size}.quiz-content-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:20px;max-width:800px;margin-inline:auto;align-items:start}.quiz-guide-column,.quiz-main-column{min-width:0}.quiz-main-column>.quiz-card,.quiz-main-column>.quiz-error{width:100%;max-width:none}.quiz-guide-column>.quiz-rules{width:100%;max-width:none;margin:0}.quiz-muted{color:var(--muted);font-size:14px;line-height:1.65}.quiz-card{border:1px solid var(--quiz-rule);background:var(--surface);border-radius:28px;padding:40px;max-width:800px;margin:0 auto;box-shadow:0 2px 5px #18253602,0 16px 40px #18253604}.quiz-card-top{display:flex;justify-content:space-between;align-items:center;gap:15px;font-size:13px;color:var(--muted)}.quiz-card-top h3{margin:0;color:var(--text)}.quiz-page .quiz-back{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;gap:6px;min-height:44px;margin-left:auto;padding:10px 14px;border:1px solid var(--quiz-rule);border-radius:12px;background:var(--quiz-choice);color:var(--text);font:inherit;font-size:13px;font-weight:600;line-height:1.4;text-decoration:none;white-space:nowrap;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent;transition:background-color .12s ease,border-color .12s ease}.quiz-back svg{flex-shrink:0;color:var(--muted)}@media(hover:hover){.quiz-page .quiz-back:hover{background:var(--quiz-choice-hover);border-color:color-mix(in srgb,var(--muted) 28%,var(--quiz-rule))}}.quiz-page .quiz-back:active{background:var(--quiz-choice-press)}.quiz-round-header{display:flex;align-items:center;justify-content:space-between;gap:20px}.quiz-round-header h2{margin:0;font-size:19px;line-height:1.4;font-weight:650;letter-spacing:-.5px}.quiz-page .quiz-round-header p{margin:5px 0 0;font-size:12px;line-height:1.5;color:var(--muted)}.quiz-round-reward{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0}.quiz-round-reward>span{font-size:11px;line-height:1.5;color:var(--muted)}.quiz-round-reward strong{font-size:24px;line-height:1.2;font-weight:600;letter-spacing:-.6px;font-variant-numeric:tabular-nums}.quiz-progress-row{display:flex;align-items:center;gap:16px;margin-top:28px}.quiz-question-index{flex-shrink:0;font-size:11px;font-variant-numeric:tabular-nums;color:var(--muted)}.quiz-question-index b{font-size:13px;font-weight:600;color:var(--text)}.quiz-progress{display:block;appearance:none;flex:1;min-width:0;border:0;height:3px;margin:0;background:var(--quiz-rule);border-radius:4px;overflow:hidden;color:#6a9fea}.quiz-progress::-webkit-progress-bar{background:var(--quiz-rule);border-radius:4px}.quiz-progress::-webkit-progress-value{background:#6a9fea;border-radius:4px}.quiz-progress::-moz-progress-bar{background:#6a9fea;border-radius:4px}.quiz-question-block{margin-top:36px}.quiz-topic{display:flex;align-items:center;flex-wrap:wrap;gap:7px;color:var(--muted);font-size:12px;line-height:1.5;font-weight:500;letter-spacing:-.15px}.quiz-question{font-size:28px;line-height:1.48;font-weight:600;letter-spacing:-.85px;word-break:keep-all;overflow-wrap:anywhere;text-wrap:pretty;margin:12px 0 0}.quiz-as-of{margin:12px 0 0;font-size:11px;color:var(--muted)}.quiz-play-zone{position:relative;isolation:isolate;margin-top:30px}.quiz-options{display:grid;gap:12px}.quiz-page .quiz-options button{display:flex;align-items:center;gap:16px;border:1px solid transparent;border-radius:16px;padding:20px;color:var(--text);background:var(--quiz-choice);box-shadow:none;text-align:left;font-size:16px;font-weight:500;line-height:1.6;cursor:pointer;min-height:78px;touch-action:manipulation;transition:background-color .12s ease,border-color .12s ease;-webkit-tap-highlight-color:transparent}.quiz-option-number{display:grid;place-items:center;flex-shrink:0;width:28px;height:28px;border:1px solid color-mix(in srgb,var(--muted) 18%,transparent);background:transparent;border-radius:50%;font-size:12px;font-weight:500;color:var(--muted)}.quiz-option-label{flex:1;min-width:0;word-break:keep-all;overflow-wrap:anywhere}.quiz-choice-status{display:flex;flex-direction:column;align-items:center;gap:2px;flex-shrink:0;font-size:10px;line-height:1.25;font-weight:500;white-space:nowrap}.quiz-options button svg{flex-shrink:0}@media(hover:hover){.quiz-options button:hover:not(:disabled){background:var(--quiz-choice-hover);border-color:var(--quiz-rule)}}.quiz-options button:active:not(:disabled){background:var(--quiz-choice-press);border-color:color-mix(in srgb,var(--muted) 30%,var(--quiz-rule))}.quiz-page .quiz-options button:disabled{cursor:default;opacity:1}.quiz-page .quiz-play-card[aria-busy=true] .quiz-options button{opacity:.75}.quiz-page .quiz-options button.correct{background:var(--quiz-success-bg);border-color:var(--quiz-success-line);color:var(--quiz-success-ink)}.quiz-page .quiz-options button.wrong{background:var(--quiz-wrong-bg);border-color:var(--quiz-wrong-line);color:var(--quiz-wrong-ink)}.quiz-options button.correct .quiz-option-number{border-color:var(--quiz-success-line);color:var(--quiz-success-ink)}.quiz-options button.wrong .quiz-option-number{border-color:var(--quiz-wrong-line);color:var(--quiz-wrong-ink)}.quiz-page .quiz-options button.unchosen{color:var(--muted)}.quiz-play-card[data-verdict=correct]{animation:quiz-card-win .7s ease both}.quiz-play-card[data-verdict=wrong]{animation:quiz-card-shake .4s ease both}.quiz-page a:focus-visible,.quiz-page button:focus-visible,.quiz-page summary:focus-visible{outline:2px solid var(--blue,#3182f6);outline-offset:4px}.quiz-page .quiz-primary,.quiz-page .quiz-secondary{display:inline-flex;justify-content:center;align-items:center;gap:10px;min-height:50px;border:0;border-radius:14px;padding:14px 24px;font-size:15px;font-weight:600;line-height:1.5;cursor:pointer}.quiz-primary{color:#fff;background:#3679dc;box-shadow:none;transition:background-color .12s ease;touch-action:manipulation}@media(hover:hover){.quiz-primary:hover:not(:disabled){background:#2c6dce}}.quiz-primary:active:not(:disabled){background:#205eae}.quiz-page .quiz-secondary{color:var(--text);background:var(--quiz-choice);border:1px solid var(--quiz-rule)}.quiz-primary:disabled,.quiz-secondary:disabled{opacity:.5;cursor:default;box-shadow:none}.quiz-card .quiz-primary{margin-top:26px}.quiz-play-card .quiz-next{display:flex;width:100%;min-height:50px;margin-top:26px}.quiz-hint{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px 20px;margin-top:28px;padding-top:20px;border-top:1px solid var(--quiz-rule)}.quiz-hint-reward{display:flex;align-items:baseline;gap:8px;white-space:nowrap;line-height:1.5}.quiz-hint-reward>span{font-size:12px;color:var(--muted)}.quiz-hint-reward>strong{font-size:16px;font-weight:600;letter-spacing:-.3px;font-variant-numeric:tabular-nums;color:var(--text)}.quiz-hint-reward>small{font-size:10px;color:var(--muted)}.quiz-hint .quiz-hint-note{margin:0;font-size:11px;line-height:1.6;color:var(--muted);word-break:keep-all}.quiz-explanation{margin-top:28px;border-top:1px solid var(--quiz-rule);padding:24px 0 0;background:none;font-size:14px;line-height:1.8}.quiz-verdict{display:flex;align-items:center;gap:8px;flex-wrap:wrap;min-height:28px}.quiz-verdict strong{font-size:14px;font-weight:600;letter-spacing:-.25px;color:var(--text)}.quiz-verdict>svg{flex-shrink:0}.quiz-verdict b{margin-left:auto;white-space:nowrap;font-size:11px;font-weight:500;color:var(--muted)}.is-correct .quiz-verdict b{color:var(--quiz-success-ink)}.quiz-explanation .quiz-answer{display:flex;align-items:baseline;gap:9px;margin:17px 0 7px;font-weight:600;line-height:1.6;color:var(--text)}.quiz-answer>span{flex-shrink:0;font-size:11px;font-weight:400;color:var(--muted)}.quiz-explanation-copy{margin:0;color:color-mix(in srgb,var(--text) 82%,var(--muted));font-size:14px;line-height:1.85;word-break:keep-all;overflow-wrap:anywhere}.quiz-sources{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;font-size:11px;line-height:1.6}.quiz-sources a{color:var(--muted);text-decoration:underline;text-decoration-color:color-mix(in srgb,var(--muted) 40%,transparent);text-underline-offset:3px}.quiz-sources a:hover{color:var(--blue,#3182f6)}.quiz-result,.quiz-welcome{text-align:center;padding:48px 32px}.quiz-welcome>.quiz-metal-icon{margin:0 auto 2px}.quiz-result h3,.quiz-welcome h3{font-size:24px;font-weight:600;letter-spacing:-.7px;line-height:1.4;margin:20px 0 12px;word-break:keep-all}.quiz-result p,.quiz-welcome p{color:var(--muted);line-height:1.8;font-size:14px}.quiz-result-icon{display:inline-flex}.quiz-earned{display:block;color:var(--blue,#3182f6);font-size:40px;font-weight:600;margin:22px 0 8px}.quiz-result-actions{display:flex;gap:10px;align-items:center;justify-content:center;margin-top:24px}.quiz-result-actions .quiz-primary{margin:0}.quiz-support-card{max-width:800px;margin:20px auto 0;padding:28px 32px;border:1px solid var(--quiz-rule);border-radius:28px;background:var(--surface);box-shadow:0 4px 20px #18253602}.quiz-support-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.quiz-support-heading h3{margin:0;font-size:17px;line-height:1.5;font-weight:600;letter-spacing:-.4px;color:var(--text)}.quiz-support-heading>span{font-size:11px;line-height:1.5;color:var(--muted);font-variant-numeric:tabular-nums}.quiz-history{display:grid;grid-template-columns:minmax(0,1fr);gap:14px;margin:26px 0 0;padding:0 0 26px;border-bottom:1px solid var(--quiz-rule);text-align:left}.quiz-history-heading{display:flex;align-items:center;gap:9px;min-width:0}.quiz-history-heading>div{display:flex;align-items:center;justify-content:space-between;gap:12px;flex:1;min-width:0}.quiz-history .quiz-history-heading h3{margin:0;font-size:13px;font-weight:650;line-height:1.5;letter-spacing:-.2px}.quiz-history-heading>div>span{padding:4px 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