:root{color-scheme:light;--navy:#13263e;--ink:#172c46;--muted:#5a6a7c;--gold:#ffd84d;--line:#dbe3ec;--wash:#f3f6fa;--success:#166343;--error:#a72b36;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--wash)}
*{box-sizing:border-box}body{margin:0;min-width:280px}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button,a,summary{touch-action:manipulation}button,summary{cursor:pointer}button{min-height:44px;border:0;border-radius:12px;font-weight:700}button:disabled{cursor:default}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #c28c00;outline-offset:4px}h1:focus,h2:focus,main:focus{outline:none}[hidden]{display:none!important}.sr-only,.skip-link:not(:focus){position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link:focus{position:fixed;top:8px;left:8px;padding:12px;background:white;color:var(--navy);z-index:5}.site-header{background:var(--navy);color:white}.header-inner{max-width:980px;margin:auto;min-height:64px;padding:8px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:inline-flex;align-items:baseline;text-decoration:none;color:white;font-size:23px;font-weight:800;letter-spacing:-1px;min-height:44px;padding-block:9px}.brand span{color:var(--gold)}.brand small{font-size:14px;letter-spacing:0}.header-link{color:white;text-decoration:none;min-height:44px;display:flex;align-items:center;font-size:14px;font-weight:700;padding:9px 12px;border:1px solid #ffffff45;border-radius:9px}
main{max-width:740px;margin:0 auto;padding:30px 24px 36px}.intro{margin-bottom:23px}.eyebrow{text-transform:uppercase;letter-spacing:.09em;font-weight:700;font-size:11px;color:var(--muted)}.intro h1{font-size:clamp(38px,7vw,56px);letter-spacing:-2px;line-height:1.05;margin:10px 0}.intro h1>span{color:#b18100}.intro p{margin:0;font-size:17px;color:var(--muted)}.setup-card,.scores-card,.question-card,.result-card,.review-card{border:1px solid var(--line);border-radius:20px;background:white;box-shadow:0 8px 24px #13263e07}.setup-card{padding:24px}fieldset{border:0;margin:0;padding:0;min-width:0}legend{padding:0;font-size:17px;font-weight:700;margin:0 0 14px}.paper-fieldset{position:relative}.selection-tools{position:absolute;right:0;top:-10px;display:flex;gap:2px}.selection-tools button{padding:8px 10px;background:transparent;color:#365779;font-size:13px;border-radius:8px}.selection-tools button:hover{background:var(--wash)}.paper-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.paper-choice{position:relative;min-width:0}.paper-choice input,.duration-choices input{position:absolute;opacity:0;width:1px;height:1px}.paper-choice>span{display:flex;align-items:center;gap:10px;min-height:55px;padding:12px 14px;border:1px solid #ccd6e1;border-radius:11px;font-weight:700;font-size:15px;cursor:pointer;background:white;color:var(--ink)}.paper-choice>span::before{content:"";flex:0 0 19px;height:19px;border:1.5px solid #8f9eaf;border-radius:5px;background:white}.paper-choice input:checked+span{background:var(--navy);border-color:var(--navy);color:white}.paper-choice input:checked+span::before{content:"✓";display:grid;place-items:center;background:var(--gold);color:var(--navy);border-color:var(--gold);font-size:15px;font-weight:800}.paper-choice input:focus-visible+span,.duration-choices input:focus-visible+span{outline:3px solid #c28c00;outline-offset:3px}.selection-summary{min-height:18px;font-size:13px;color:var(--muted);margin:12px 0 24px}.duration-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.duration-choices label{position:relative}.duration-choices span{display:flex;align-items:baseline;justify-content:center;gap:6px;min-height:61px;border:1px solid #ccd6e1;border-radius:11px;padding:12px;background:white;color:var(--muted);font-size:14px;cursor:pointer}.duration-choices strong{font-size:27px;line-height:1}.duration-choices input:checked+span{background:#fff8d6;border-color:#b38a12;color:var(--navy);box-shadow:inset 0 0 0 1px #b38a12}.start-row{margin-top:22px}.primary{display:block;width:100%;padding:15px 22px;min-height:54px;font-size:17px;background:var(--navy);color:white;box-shadow:0 4px 8px #13263e14}.primary:hover:not(:disabled){background:#234464}.primary:disabled{background:#d9e0e8;color:#667282;box-shadow:none}.start-row p{margin:12px 0 0;text-align:center;font-size:12px;color:var(--muted)}.secondary{background:transparent;color:var(--ink);padding:12px 18px;border:1px solid var(--line);font-size:14px}.error-message{color:var(--error);font-size:14px;line-height:1.5}
.scores-card{margin-top:16px;padding:20px 24px}.scores-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px}.scores-heading h2{margin:0;font-size:17px}.scores-heading>span{font-size:12px;color:var(--muted);text-align:right;max-width:70%}.best-grid{display:grid;grid-template-columns:1fr 1fr;margin-top:16px;gap:10px}.best-grid>div{display:flex;align-items:center;justify-content:space-between;background:var(--wash);padding:12px 14px;border-radius:10px;gap:10px}.best-grid span{font-size:13px;color:var(--muted)}.best-grid strong{font-size:25px}.scores-card summary{display:flex;align-items:center;gap:7px;min-height:48px;font-size:13px;font-weight:700;list-style:none;margin-top:10px}.scores-card summary::before{content:"+";font-size:20px}.scores-card details[open] summary::before{content:"−"}.scores-card #no-history{font-size:13px;color:var(--muted)}.history-list{list-style:none;margin:0;padding:0}.history-list li{display:flex;align-items:center;justify-content:space-between;padding:13px 0;border-top:1px solid var(--line);gap:14px}.history-list .history-paper{display:block;font-size:13px;font-weight:700;line-height:1.4}.history-list small{display:block;font-size:12px;color:var(--muted);margin-top:4px}.history-list .history-score{font-size:23px;font-weight:700;white-space:nowrap}.history-list .history-score small{font-weight:400;font-size:11px;text-align:right}.storage-note{font-size:12px;line-height:1.45;color:var(--muted);margin:10px 0 0}.scope-note{font-size:12px;color:var(--muted);text-align:center;line-height:1.5;margin:16px 0 0}
.game-topline{display:flex;align-items:center;justify-content:space-between;margin:-5px 0 12px}.exit-button{background:transparent;font-size:13px;padding:8px 0 8px 14px;color:var(--muted)}.round-status{--timer-color:#9c7500;position:relative;display:flex;align-items:center;justify-content:space-between;background:white;border:1px solid var(--line);border-radius:18px;padding:11px 24px 16px;gap:24px;overflow:hidden;margin-bottom:16px}.timer-block{display:flex;align-items:center;gap:14px}.hourglass{width:54px;height:72px;flex-shrink:0;color:var(--timer-color)}.glass{fill:none;stroke:var(--navy);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.sand{fill:currentColor}.sand-stream{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}.seconds{color:var(--timer-color);line-height:1;font-size:50px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-2px}.seconds-unit{font-size:22px;letter-spacing:0;margin-left:4px}.timer-caption{font-size:12px;color:var(--muted)}.live-score{display:flex;align-items:center;gap:13px;border-left:1px solid var(--line);padding-left:24px}.live-score>span{font-size:14px;color:var(--muted)}.live-score strong{font-size:39px;font-variant-numeric:tabular-nums}.time-track{position:absolute;bottom:0;left:0;right:0;height:5px;background:#e8edf3}.time-track>div{height:100%;background:var(--timer-color);transform-origin:left;width:100%;will-change:transform}.round-status.warning{--timer-color:#b8660a}.round-status.urgent{--timer-color:#b32b3d}.round-status.urgent .timer-caption{color:#b32b3d;font-weight:700}.question-card{padding:24px}.question-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px}.question-meta span:first-child{font-weight:700;color:var(--navy)}.question-card h2{font-size:clamp(23px,4.5vw,30px);letter-spacing:-.6px;line-height:1.25;margin:21px 0 24px;min-height:2.5em;overflow-wrap:anywhere}.answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.answer-button{display:flex;align-items:center;gap:11px;text-align:left;padding:14px;min-height:82px;background:#f7f9fc;border:1px solid #cbd6e3;color:var(--ink);line-height:1.3;font-size:17px;overflow-wrap:anywhere;position:relative}.answer-letter{flex:0 0 28px;height:28px;border-radius:7px;border:1px solid #c5d0dd;display:grid;place-items:center;font-size:12px;color:var(--muted);background:white}.answer-button:hover:not(:disabled){border-color:#6685a7;background:#edf3f9}.answer-button:disabled{color:var(--ink);opacity:1}.answer-button.correct{background:#e9f6ef;border:2px solid var(--success);padding:13px;color:#125336}.answer-button.incorrect{background:#fff0f1;border:2px solid var(--error);padding:13px;color:#8e2530}.answer-button.correct .answer-letter{background:var(--success);border-color:var(--success);color:white}.answer-button.incorrect .answer-letter{background:var(--error);border-color:var(--error);color:white}.feedback{min-height:21px;margin:16px 0 0;font-size:14px;font-weight:700;line-height:1.4;color:var(--muted)}.feedback.correct{color:var(--success)}.feedback.incorrect{color:var(--error)}.keyboard-hint{font-size:12px;text-align:center;color:var(--muted);margin:14px 0}
.result-heading{text-align:center;margin:10px 0 24px}.result-heading h1{margin:12px 0;font-size:40px;letter-spacing:-1.5px}.result-heading>p{color:var(--muted);font-size:15px;margin:0}.result-card{padding:27px;text-align:center}.result-score{display:flex;flex-direction:column;gap:3px}.result-score strong{font-size:86px;line-height:1.05;letter-spacing:-4px}.result-score>span{font-size:15px;color:var(--muted)}.result-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:23px 0;background:var(--wash);border-radius:12px;padding:17px 10px}.result-stats>div{display:flex;flex-direction:column;gap:5px}.result-stats strong{font-size:23px}.result-stats span{font-size:12px;color:var(--muted)}.result-card .primary{margin-top:22px}.result-card>.secondary{margin-top:10px;width:100%}.review-card{padding:0 22px;margin-top:16px}.review-card>summary{padding:18px 0;min-height:54px;font-size:14px;font-weight:700}.review-card ol{padding-left:23px;margin:0 0 18px}.review-card li{padding:14px 0;border-top:1px solid var(--line);font-size:14px;line-height:1.5}.review-card li p{margin:4px 0}.review-card .review-question{font-weight:700}.review-card .review-answer{color:var(--success)}.review-card small{font-size:12px;color:var(--muted)}footer{max-width:740px;margin:0 auto;padding:8px 24px 24px;font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:16px}footer a{color:var(--muted);min-height:44px;display:inline-flex;align-items:flex-start}
@media(max-width:520px){.header-inner{padding-inline:16px;min-height:58px}.brand{font-size:20px}.brand small{font-size:12px}.header-link{font-size:12px;padding:8px 10px}main{padding:24px 16px 24px}.intro{margin-bottom:18px}.intro h1{font-size:42px}.intro p{font-size:15px}.setup-card{padding:20px 17px}.scores-card{padding:18px 17px}.paper-grid{gap:8px}.paper-choice>span{font-size:14px;gap:8px;padding:11px;min-height:52px}.paper-choice>span::before{flex-basis:18px;height:18px}.selection-tools button{padding-inline:8px;font-size:12px}.selection-summary{margin-bottom:21px;font-size:12px}.best-grid>div{padding:11px;gap:8px}.best-grid span{font-size:12px}.best-grid strong{font-size:23px}.round-status{padding:10px 18px 15px;margin-bottom:12px}.timer-block{gap:9px}.hourglass{width:46px;height:61px}.seconds{font-size:44px}.live-score{padding-left:18px;gap:10px}.live-score strong{font-size:34px}.live-score>span{font-size:12px}.question-card{padding:20px 17px}.question-card h2{margin:18px 0 21px;font-size:25px}.answers{gap:8px}.answer-button{font-size:16px;padding:12px 10px;gap:8px;min-height:88px}.answer-button.correct,.answer-button.incorrect{padding:11px 9px}.answer-letter{flex-basis:23px;height:25px;font-size:11px}.keyboard-hint{display:none}.feedback{margin-top:14px;font-size:13px}.game-topline{margin-top:-9px;margin-bottom:6px}.result-card{padding:23px 18px}.result-heading h1{font-size:35px}.result-score strong{font-size:76px}.result-stats{gap:7px}.result-stats strong{font-size:21px}.result-stats span{font-size:11px}footer{padding-inline:16px}}
@media(max-width:340px){.header-link{font-size:11px;padding-inline:7px}.brand{font-size:18px}.brand small{font-size:10px}main{padding-inline:12px}.setup-card{padding-inline:13px}.paper-choice>span{font-size:13px;padding:10px 8px;gap:6px}.selection-tools{top:-9px}.selection-tools button{padding-inline:6px;font-size:11px}.question-card h2{font-size:23px}.answer-button{font-size:15px;gap:7px;min-height:91px}.answer-letter{flex-basis:21px}.scores-heading>span{max-width:62%}}
body.playing footer{display:none}
.quiz-switch{display:flex;align-items:center;min-height:44px;margin:-10px 0 16px;color:#365779;font-size:13px;font-weight:700;line-height:1.5;text-decoration:underline;text-underline-offset:3px}
@media(max-width:520px){body.playing main{padding-top:16px;padding-bottom:16px}.game .question-card{padding:18px 16px}.game .question-card h2{font-size:23px;margin:14px 0 17px}.game .answer-button{min-height:77px}.game .round-status{padding-top:8px;padding-bottom:13px}.game .hourglass{height:56px;width:42px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.time-track>div{will-change:auto}}