.mechanics-root{--ink:#1d1d1f;--muted:#6e6e73;--canvas:#f5f5f7;--paper:#fff;--line:#e5e5ea;--line-strong:#d2d2d7;--accent:#0071e3;--accent-hover:#0077ed;--accent-soft:#f0f7ff;--red:#b83a32;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-synthesis:none}.mechanics-root *{box-sizing:border-box}.mechanics-root{background:var(--canvas);color:var(--ink);letter-spacing:-.022em;-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Helvetica Neue,Segoe UI,sans-serif;font-size:17px;line-height:1.47}.mechanics-root button,.mechanics-root input,.mechanics-root select,.mechanics-root textarea{font:inherit;letter-spacing:inherit}.mechanics-root button,.mechanics-root select,.mechanics-root input[type=radio]{cursor:pointer}.mechanics-root button{color:inherit}.mechanics-root button:disabled{cursor:not-allowed;opacity:.38}.mechanics-root button,.mechanics-root a,.mechanics-root input,.mechanics-root select,.mechanics-root label{-webkit-tap-highlight-color:transparent}.mechanics-root button:focus-visible,.mechanics-root a:focus-visible,.mechanics-root input:focus-visible,.mechanics-root select:focus-visible{outline-offset:4px;outline:3px solid #0071e380}.mechanics-root label:has(input:focus-visible){outline-offset:4px;outline:3px solid #0071e380}.mechanics-root a{color:var(--accent)}.mechanics-root button svg,.mechanics-root a svg{flex-shrink:0}.mechanics-root button,.mechanics-root a{touch-action:manipulation}.mechanics-root fieldset{border:0;min-width:0;margin:0;padding:0}.mechanics-root h1,.mechanics-root h2,.mechanics-root h3,.mechanics-root p,.mechanics-root figure{margin:0}.mechanics-root .visually-hidden{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.mechanics-root .muted{color:var(--muted)}.mechanics-root .first-move-app{min-height:100dvh}.mechanics-root .eyebrow,.mechanics-root .step-number{display:none}.mechanics-root .app-header{background:#fafafc;border-bottom:1px solid #dedee3;height:68px}.mechanics-root .header-inner{align-items:center;gap:28px;width:min(1440px,100%);height:100%;margin:auto;padding:0 40px;display:flex}.mechanics-root .brand{letter-spacing:-.6px;text-align:left;background:0 0;border:0;flex-shrink:0;align-items:center;gap:10px;padding:0;font-size:20px;font-weight:600;display:flex}.mechanics-root .brand-mark{width:28px;height:32px;color:var(--ink);place-items:center;display:grid}.mechanics-root .brand-mark svg{width:26px;height:26px}.mechanics-root .brand-subject{border-left:1px solid var(--line-strong);color:var(--muted);letter-spacing:-.2px;margin-left:14px;padding-left:14px;font-size:15px;font-weight:400;display:inline}.mechanics-root .course-label{color:var(--muted);margin-left:auto;font-size:14px}.mechanics-root .header-session{color:var(--muted);align-items:center;gap:15px;margin-left:auto;font-size:15px;display:flex}.mechanics-root .session-level{color:var(--muted);font-weight:400}.mechanics-root .header-divider{background:var(--line-strong);width:1px;height:16px;display:block}.mechanics-root .header-finish{margin-left:5px}.mechanics-root .button{white-space:nowrap;border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;gap:9px;min-height:44px;padding:10px 19px;font-size:16px;font-weight:500;line-height:1.4;text-decoration:none;transition:background .15s,opacity .15s;display:inline-flex}.mechanics-root .button-primary{color:#fff;background:var(--accent)}.mechanics-root .button-primary:not(:disabled):hover{background:var(--accent-hover)}.mechanics-root .button-primary:not(:disabled):active{background:#0068d1}.mechanics-root .button-secondary{color:var(--ink);background:#ededf0}.mechanics-root .button-secondary:not(:disabled):hover{background:#e4e4e8}.mechanics-root .button-quiet{color:var(--accent);background:0 0;padding-left:9px;padding-right:9px}.mechanics-root .button-quiet:hover{background:#0071e307}.mechanics-root .icon-button{width:40px;height:40px;color:var(--muted);background:0 0;border:0;border-radius:50%;place-items:center;transition:background .15s;display:grid}.mechanics-root .icon-button:hover{color:var(--ink);background:#ededf0}.mechanics-root .setup-page{max-width:744px;margin:0 auto;padding:64px 24px 44px}.mechanics-root .setup-intro{text-align:left;margin:0 4px 30px}.mechanics-root .setup-intro h1{letter-spacing:-.9px;font-size:34px;font-weight:600;line-height:1.17}.mechanics-root .setup-intro>p:last-child{color:var(--muted);margin-top:10px;font-size:17px;line-height:1.53}.mechanics-root .setup-card{box-shadow:none;background:#fff;border:0;border-radius:18px}.mechanics-root .setup-section{padding:29px 32px}.mechanics-root .section-heading{align-items:center;gap:12px;margin-bottom:18px;display:flex}.mechanics-root .section-heading h2{letter-spacing:-.3px;font-size:17px;font-weight:600}.mechanics-root .level-options{background:#f0f0f3;border-radius:11px;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;padding:4px;display:grid}.mechanics-root .level-option{cursor:pointer;text-align:center;background:0 0;border:0;border-radius:8px;flex-direction:column;min-width:0;padding:17px 13px;transition:background .15s;display:flex;position:relative}.mechanics-root .level-option:hover{background:#ffffff75}.mechanics-root .level-option.is-selected{background:#fff;box-shadow:0 1px 4px #00000012}.mechanics-root .level-option input,.mechanics-root .answer-option input{opacity:0;width:1px;height:1px;position:absolute}.mechanics-root .level-option-top{color:var(--ink);justify-content:center;align-items:center;gap:8px;margin-bottom:5px;font-size:17px;font-weight:500;display:flex}.mechanics-root .level-option.is-selected .level-option-top{color:var(--accent)}.mechanics-root .selection-dot{display:none}.mechanics-root .level-option strong{color:var(--muted);letter-spacing:-.2px;font-size:15px;font-weight:400;line-height:1.4}.mechanics-root .level-description{color:var(--muted);margin-top:7px;font-size:15px;line-height:1.5}.mechanics-root .field-hint{color:var(--muted);margin-top:16px;font-size:15px;line-height:1.5}.mechanics-root .count-section{border-top:1px solid var(--line);padding-top:25px}.mechanics-root .session-fields{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;display:grid}.mechanics-root .count-fieldset legend,.mechanics-root .topic-field>label{color:var(--ink);margin-bottom:12px;font-size:16px;font-weight:500;display:block}.mechanics-root .count-options{background:#f0f0f3;border:0;border-radius:8px;grid-template-columns:repeat(3,1fr) 1.4fr;gap:3px;padding:3px;display:grid}.mechanics-root .count-options button{height:38px;color:var(--ink);background:0 0;border:0;border-radius:6px;font-size:16px;transition:background .15s}.mechanics-root .count-options button:not(:disabled):hover{background:#ffffff80}.mechanics-root .count-options button.is-selected{color:var(--ink);background:#fff;font-weight:500;box-shadow:0 1px 3px #0000001a}.mechanics-root .custom-count-field{align-items:center;gap:16px;margin-top:16px;display:flex}.mechanics-root .custom-count-field label{color:var(--muted);font-size:16px}.mechanics-root .custom-count-field input{border:1px solid var(--line-strong);width:100px;height:42px;color:var(--ink);background:#fff;border-radius:7px;padding:8px 12px;font-size:16px}.mechanics-root .select-wrap{position:relative}.mechanics-root .select-wrap select{appearance:none;border:1px solid var(--line-strong);width:100%;min-height:45px;color:var(--ink);text-overflow:ellipsis;background:#fff;border-radius:8px;padding:9px 40px 9px 13px;font-size:16px}.mechanics-root .select-wrap svg{pointer-events:none;color:var(--muted);position:absolute;top:15px;right:14px}.mechanics-root .inline-warning{color:var(--red);margin-top:13px;font-size:15px;line-height:1.5}.mechanics-root .setup-start{justify-content:space-between;align-items:center;gap:22px;padding:0 32px 30px;display:flex}.mechanics-root .setup-start p{color:var(--muted);font-size:15px;line-height:1.5}.mechanics-root .setup-start strong{color:var(--ink);margin-bottom:5px;font-size:16px;font-weight:400;display:block}.mechanics-root .button-start{min-width:148px;min-height:46px;margin-left:auto}.mechanics-root .setup-footnote{color:var(--muted);text-align:center;margin-top:24px;font-size:14px}.mechanics-root .quiz-page{max-width:1420px;margin:0 auto;padding:30px 40px 56px;scroll-margin-top:20px}.mechanics-root .quiz-toolbar{justify-content:space-between;align-items:center;gap:24px;margin-bottom:28px;display:flex}.mechanics-root .question-list-button{background:0 0;border:0;align-items:center;gap:10px;padding:5px 0;font-size:17px;font-weight:500;display:flex}.mechanics-root .question-list-button>svg{color:var(--muted)}.mechanics-root .question-list-button>svg:last-child{margin-left:2px}.mechanics-root .question-list-button .muted{font-weight:400}.mechanics-root .question-list-button:hover{color:var(--accent)}.mechanics-root .answer-progress{color:var(--muted);align-items:center;gap:18px;font-size:15px;display:flex}.mechanics-root .answer-progress progress{appearance:none;background:#dedee3;border:0;border-radius:3px;width:120px;height:4px;display:block;overflow:hidden}.mechanics-root .answer-progress progress::-webkit-progress-bar{background:#dedee3;border-radius:3px}.mechanics-root .answer-progress progress::-webkit-progress-value{background:var(--accent);border-radius:3px;transition:width .2s}.mechanics-root .answer-progress progress::-moz-progress-bar{background:var(--accent);border-radius:3px}.mechanics-root .question-workspace{grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);align-items:start;gap:48px;display:grid}.mechanics-root .source-panel{background:#fff;border:0;border-radius:14px;overflow:hidden}.mechanics-root .source-panel-heading{justify-content:space-between;align-items:center;gap:16px;padding:23px 26px 0;display:flex}.mechanics-root .source-panel-heading h1{letter-spacing:-.4px;font-size:22px;font-weight:600;line-height:1.3}.mechanics-root .source-byline{color:var(--muted);padding:4px 26px 20px;font-size:15px;line-height:1.5}.mechanics-root .source-scan-scroll{min-height:0;max-height:none;overflow:visible}.mechanics-root .source-scan{margin:0;padding:5px 16px 24px}.mechanics-root .source-scan+.source-scan{border-top:1px solid var(--line);padding-top:22px}.mechanics-root .source-scan img{width:100%;height:auto;display:block}.mechanics-root .source-scan figcaption{color:var(--muted);text-align:center;margin-top:17px;font-size:14px}.mechanics-root .source-panel-footer{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;align-items:center;gap:18px;padding:16px 25px;font-size:14px;line-height:1.5;display:flex}.mechanics-root .source-panel-footer>span{max-width:80%}.mechanics-root .source-panel-footer a{white-space:nowrap;align-items:center;gap:3px;text-decoration:none;display:flex}.mechanics-root .source-panel-footer a:hover{text-decoration:underline}.mechanics-root .answer-panel{min-width:0;padding:0;position:sticky;top:28px}.mechanics-root .part-navigation{background:#e9e9ee;border:0;border-radius:9px;flex-wrap:wrap;align-items:center;gap:3px;width:fit-content;max-width:100%;margin-bottom:29px;padding:4px;display:flex}.mechanics-root .part-tab{color:var(--muted);background:0 0;border:0;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:8px 14px;font-size:15px;font-weight:400;display:inline-flex}.mechanics-root .part-tab:hover{color:var(--ink)}.mechanics-root .part-tab.is-active{color:var(--ink);background:#fff;font-weight:500;box-shadow:0 1px 3px #00000012}.mechanics-root .part-status{color:var(--accent);place-items:center;display:grid}.mechanics-root .part-status.is-wrong{color:var(--red)}.mechanics-root .part-status.is-less-direct{color:#945900}.mechanics-root .active-part-content{animation:.12s ease-out mechanics-content-in}.mechanics-root .answer-heading{margin-bottom:26px;padding-top:0}.mechanics-root .answer-heading h2{letter-spacing:-.6px;font-size:28px;font-weight:600;line-height:1.2}.mechanics-root .answer-heading>p:last-child{color:var(--muted);margin-top:12px;font-size:16px;line-height:1.5}.mechanics-root .answer-heading strong{color:var(--ink);font-weight:500}.mechanics-root .answer-options{background:#fff;border:1px solid #dedee3;border-radius:13px;gap:0;display:grid;overflow:hidden}.mechanics-root .answer-option{cursor:pointer;background:#fff;border:0;align-items:center;gap:15px;min-height:90px;padding:22px 20px;transition:background .15s;display:flex;position:relative}.mechanics-root .answer-option+.answer-option{border-top:1px solid var(--line)}.mechanics-root .answer-option:not(.is-review):hover{background:#fafafc}.mechanics-root .answer-option:has(input:focus-visible){outline-offset:-4px}.mechanics-root .option-letter{width:23px;color:var(--muted);flex-shrink:0;place-items:center;font-size:15px;font-weight:500;display:grid}.mechanics-root .option-content{min-width:0;color:var(--ink);overflow-wrap:break-word;flex-direction:column;gap:8px;font-size:18px;line-height:1.5;display:flex}.mechanics-root .inline-math{vertical-align:middle;max-width:100%;padding:3px 0;display:inline-block;overflow:auto hidden}.mechanics-root .inline-math .katex{white-space:nowrap;font-size:1.08em}.mechanics-root .route-feedback strong{color:var(--ink);margin-bottom:5px;font-size:15px;font-weight:500;display:block}.mechanics-root .answer-option.is-selected{background:var(--accent-soft);box-shadow:inset 3px 0 var(--accent)}.mechanics-root .answer-option.is-selected:not(.is-review):hover{background:#eaf4ff}.mechanics-root .is-selected .option-letter{color:var(--accent)}.mechanics-root .option-selected-check{color:var(--accent);flex-shrink:0;margin-left:auto}.mechanics-root .answer-option.is-review{cursor:default}.mechanics-root .answer-option.is-correct{background:var(--accent-soft);box-shadow:inset 3px 0 var(--accent)}.mechanics-root .is-correct .option-letter,.mechanics-root .is-correct .option-feedback-label{color:var(--accent)}.mechanics-root .answer-option.is-incorrect{box-shadow:inset 3px 0 var(--red);background:#fff3f2}.mechanics-root .is-incorrect .option-letter,.mechanics-root .is-incorrect .option-feedback-label{color:var(--red)}.mechanics-root .option-feedback-label{font-size:14px;font-weight:400}.mechanics-root .answer-help{color:var(--muted);margin-top:19px;font-size:15px}.mechanics-root .part-footer{justify-content:space-between;align-items:center;gap:14px;margin-top:2px;padding-top:25px;display:flex}.mechanics-root .part-position{color:var(--muted);font-size:15px}.mechanics-root .part-footer .button-secondary{color:var(--accent);background:0 0;padding-left:0}.mechanics-root .part-footer .button-secondary:hover{color:#004fa1;background:0 0}.mechanics-root .answer-explanation{border:0;margin-top:8px;padding:25px 0 0}.mechanics-root .explanation-label{color:var(--ink);align-items:center;gap:9px;font-size:17px;font-weight:600;line-height:1.4;display:flex}.mechanics-root .explanation-label svg{color:var(--accent)}.mechanics-root .answer-explanation p{color:var(--muted);white-space:pre-line;margin-top:12px;font-size:17px;line-height:1.6}.mechanics-root .answer-explanation a{align-items:center;gap:4px;margin-top:14px;font-size:15px;text-decoration:none;display:inline-flex}.mechanics-root .answer-explanation a:hover{text-decoration:underline}.mechanics-root .results-page{max-width:900px;margin:0 auto;padding:54px 28px 48px}.mechanics-root .results-intro{text-align:left}.mechanics-root .completion-mark{display:none}.mechanics-root .results-intro h1{letter-spacing:-.7px;font-size:32px;font-weight:600;line-height:1.2}.mechanics-root .results-intro>p:last-child{color:var(--muted);margin-top:12px;font-size:17px;line-height:1.5}.mechanics-root .score-summary{background:#fff;border:0;border-radius:15px;grid-template-columns:1fr 1fr auto;align-items:center;gap:32px;margin-top:30px;padding:30px;display:grid}.mechanics-root .score-main{flex-direction:column;gap:8px;display:flex}.mechanics-root .score-number{color:var(--ink);letter-spacing:-1.5px;font-size:48px;font-weight:600;line-height:1.1}.mechanics-root .score-number span{color:#86868b;letter-spacing:-.7px;font-size:28px;font-weight:400}.mechanics-root .score-main>span:last-child{color:var(--muted);font-size:15px}.mechanics-root .score-breakdown{color:var(--muted);flex-direction:column;gap:12px;font-size:15px;display:flex}.mechanics-root .score-breakdown>span{align-items:center;gap:9px;display:flex}.mechanics-root .result-dot{border-radius:50%;width:6px;height:6px}.mechanics-root .result-dot.correct{background:var(--accent)}.mechanics-root .result-dot.incorrect{background:var(--red)}.mechanics-root .result-dot.skipped{background:#a1a1a6}.mechanics-root .answer-option.is-less-direct{background:#fff8ec;box-shadow:inset 3px 0 #a86500}.mechanics-root .is-less-direct .option-feedback-label,.mechanics-root .result-part.less-direct{color:#945900}.mechanics-root .result-dot.less-direct{background:#a86500}.mechanics-root .score-actions{flex-direction:column;gap:10px;display:flex}.mechanics-root .score-actions .button{font-size:15px}.mechanics-root .results-list-section{margin-top:38px}.mechanics-root .results-list-heading{justify-content:space-between;align-items:center;gap:18px;margin-bottom:18px;display:flex}.mechanics-root .results-list-heading h2{letter-spacing:-.3px;font-size:20px;font-weight:600}.mechanics-root .result-filter{background:#e9e9ee;border-radius:8px;gap:3px;padding:3px;display:flex}.mechanics-root .result-filter button{color:var(--muted);background:0 0;border:0;border-radius:5px;padding:7px 13px;font-size:15px}.mechanics-root .result-filter button.is-active{color:var(--ink);background:#fff;box-shadow:0 1px 3px #00000012}.mechanics-root .results-list{background:#fff;border:0;border-radius:13px;overflow:hidden}.mechanics-root .result-question{justify-content:space-between;align-items:center;gap:22px;padding:23px 25px;display:flex}.mechanics-root .result-question+.result-question{border-top:1px solid var(--line)}.mechanics-root .result-question-top{align-items:center;gap:15px;min-width:0;display:flex}.mechanics-root .result-question-number{color:var(--muted);flex-shrink:0;width:21px;font-size:15px}.mechanics-root .result-question h3{align-items:center;gap:13px;font-size:17px;font-weight:500;display:flex}.mechanics-root .result-question h3>span{color:var(--muted);font-size:15px;font-weight:400}.mechanics-root .result-question p{color:var(--muted);margin-top:5px;font-size:15px;line-height:1.45}.mechanics-root .result-part-links{flex-wrap:wrap;flex-shrink:0;justify-content:flex-end;align-items:center;gap:7px;max-width:47%;display:flex}.mechanics-root .result-part{color:var(--muted);background:#f5f5f7;border:0;border-radius:6px;align-items:center;gap:5px;padding:7px 9px;font-size:14px;display:inline-flex}.mechanics-root .result-part:hover{background:#ededf0}.mechanics-root .result-part.correct{color:var(--accent)}.mechanics-root .result-part.incorrect{color:var(--red)}.mechanics-root .result-part.skipped{color:var(--muted)}.mechanics-root .result-part>svg:last-child{opacity:.65}.mechanics-root .skipped-line{background:currentColor;width:9px;height:1px;margin-right:3px}.mechanics-root .all-correct-note{color:var(--muted);text-align:center;padding:30px;font-size:16px}.mechanics-root .results-footnote{color:var(--muted);margin-top:26px;font-size:15px}.mechanics-root .quiz-dialog{width:min(560px,100vw - 32px);max-height:calc(100dvh - 64px);color:var(--ink);border:0;border-radius:18px;padding:28px;overflow:auto;box-shadow:0 24px 80px #00000029}.mechanics-root .quiz-dialog[open]{animation:.14s ease-out mechanics-dialog-in}.mechanics-root .quiz-dialog::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0003}.mechanics-root .dialog-heading{justify-content:space-between;align-items:center;gap:18px;display:flex}.mechanics-root .dialog-heading h2{letter-spacing:-.4px;font-size:21px;font-weight:600;line-height:1.3}.mechanics-root .dialog-heading .icon-button{flex-shrink:0;margin:-7px -8px -7px 0}.mechanics-root .dialog-description{color:var(--muted);margin-top:15px;font-size:17px;line-height:1.5}.mechanics-root .dialog-actions{justify-content:flex-end;gap:11px;margin-top:28px;display:flex}.mechanics-root .question-jump-list{flex-direction:column;gap:2px;margin-top:21px;display:flex}.mechanics-root .question-jump{text-align:left;background:#fff;border:0;border-radius:8px;align-items:center;gap:15px;width:100%;padding:15px 12px;display:flex}.mechanics-root .question-jump:hover{background:#f5f5f7}.mechanics-root .question-jump.is-active{background:var(--accent-soft)}.mechanics-root .jump-number{color:var(--muted);text-align:center;flex-shrink:0;width:22px;font-size:16px}.mechanics-root .jump-copy{flex-direction:column;gap:4px;display:flex}.mechanics-root .jump-copy strong{font-size:17px;font-weight:500}.mechanics-root .jump-copy>span{color:var(--muted);font-size:15px;line-height:1.4}.mechanics-root .jump-progress{color:var(--accent);flex-shrink:0;margin-left:auto;font-size:15px}.mechanics-root .scan-dialog{width:min(1100px,100vw - 32px);padding:24px 28px}.mechanics-root .scan-dialog .dialog-heading{background:#fff;margin-bottom:18px;padding:0 0 20px;position:sticky;top:-24px}.mechanics-root .scan-dialog .dialog-heading h2{font-size:17px;font-weight:500}.mechanics-root .enlarged-scans img{width:100%;height:auto;display:block}.mechanics-root .enlarged-scans img+img{border-top:1px solid var(--line);margin-top:26px;padding-top:26px}.mechanics-root .loading-page{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:16px;min-height:70dvh;padding:30px;display:flex}.mechanics-root .loading-page h1{letter-spacing:-.5px;font-size:27px;font-weight:600}.mechanics-root .loading-page p{color:var(--muted);margin-bottom:10px;font-size:17px}.mechanics-root .spinner{color:var(--muted);margin-bottom:8px;animation:1s linear infinite mechanics-spin}@keyframes mechanics-spin{to{transform:rotate(360deg)}}@keyframes mechanics-content-in{0%{opacity:.5}to{opacity:1}}@keyframes mechanics-dialog-in{0%{opacity:0;transform:scale(.99)}to{opacity:1;transform:scale(1)}}@media (max-width:1100px){.mechanics-root .header-inner{padding:0 28px}.mechanics-root .quiz-page{padding:28px}.mechanics-root .question-workspace{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px}.mechanics-root .answer-option{gap:12px;padding:20px 16px}.mechanics-root .option-content{font-size:17px}.mechanics-root .part-footer{gap:9px}.mechanics-root .part-footer .button{gap:7px;padding-left:14px;padding-right:14px;font-size:15px}.mechanics-root .part-footer .button-secondary{padding-left:0}.mechanics-root .source-panel-heading,.mechanics-root .source-byline{padding-left:21px;padding-right:21px}}@media (max-width:850px){.mechanics-root .app-header{height:64px}.mechanics-root .header-inner{gap:18px;padding:0 24px}.mechanics-root .brand{gap:8px;font-size:19px}.mechanics-root .brand-subject{display:none}.mechanics-root .header-session{gap:12px;font-size:15px}.mechanics-root .header-finish{margin-left:0;padding:8px;font-size:15px}.mechanics-root .setup-page{padding-top:44px}.mechanics-root .question-workspace{grid-template-columns:1fr;gap:34px;max-width:680px;margin:auto}.mechanics-root .quiz-toolbar{max-width:680px;margin-left:auto;margin-right:auto}.mechanics-root .answer-panel{position:static}.mechanics-root .answer-progress progress{display:none}.mechanics-root .source-scan{padding:0 22px 23px}.mechanics-root .source-panel-heading{padding-top:20px}.mechanics-root .source-panel-footer{padding:15px 22px}.mechanics-root .answer-option{gap:15px;min-height:86px;padding:23px 20px}.mechanics-root .option-content{font-size:18px}.mechanics-root .part-footer .button{gap:8px;padding:11px 18px;font-size:16px}.mechanics-root .part-footer .button-secondary{padding-left:0}.mechanics-root .results-page{padding-top:40px}.mechanics-root .score-summary{gap:22px;padding:26px}}@media (max-width:600px){.mechanics-root .header-inner{gap:12px;padding:0 20px}.mechanics-root .brand{gap:5px;font-size:18px}.mechanics-root .brand-mark{width:23px}.mechanics-root .brand-mark svg{width:23px;height:23px}.mechanics-root .course-label{text-align:right;max-width:125px;font-size:13px;line-height:1.4}.mechanics-root .header-session{gap:0;margin-left:auto}.mechanics-root .header-session>span:not(.session-level){display:none}.mechanics-root .header-finish{margin-left:2px;padding-right:0;font-size:15px}.mechanics-root .header-finish svg{display:none}.mechanics-root .setup-page{padding:35px 20px 32px}.mechanics-root .setup-intro{margin:0 0 25px}.mechanics-root .setup-intro h1{letter-spacing:-.7px;font-size:30px}.mechanics-root .setup-intro>p:last-child{font-size:16px}.mechanics-root .desktop-break{display:none}.mechanics-root .setup-card{border-radius:15px}.mechanics-root .setup-section{padding:24px 21px}.mechanics-root .section-heading{margin-bottom:16px}.mechanics-root .section-heading h2{font-size:17px}.mechanics-root .level-options{gap:3px;padding:3px}.mechanics-root .level-option{padding:14px 6px}.mechanics-root .level-option-top{margin-bottom:4px;font-size:16px}.mechanics-root .level-option strong{font-size:14px;line-height:1.35}.mechanics-root .field-hint{margin-top:15px;font-size:15px}.mechanics-root .session-fields{grid-template-columns:1fr;gap:23px}.mechanics-root .count-options button{height:38px;font-size:16px}.mechanics-root .setup-start{flex-direction:column;align-items:stretch;gap:18px;padding:0 21px 24px}.mechanics-root .button-start{min-height:46px;margin:0}.mechanics-root .setup-footnote{font-size:14px}.mechanics-root .quiz-page{padding:22px 20px 34px}.mechanics-root .quiz-toolbar{align-items:flex-start;gap:14px;margin-bottom:21px}.mechanics-root .question-list-button{gap:7px;font-size:16px}.mechanics-root .question-list-button>svg:first-child{width:17px}.mechanics-root .question-list-button>svg:last-child{width:14px;margin-left:0}.mechanics-root .answer-progress{text-align:right;padding-top:6px;font-size:14px}.mechanics-root .source-panel-heading{padding:18px 18px 0}.mechanics-root .source-panel-heading h1{font-size:21px}.mechanics-root .source-byline{padding:4px 18px 18px;font-size:15px}.mechanics-root .source-scan{padding:0 8px 20px}.mechanics-root .source-panel-footer{padding:15px 18px;font-size:14px}.mechanics-root .question-workspace{gap:28px}.mechanics-root .part-navigation{max-width:100%;margin-bottom:25px}.mechanics-root .part-tab{padding:8px 12px;font-size:15px}.mechanics-root .answer-heading{margin-bottom:22px}.mechanics-root .answer-heading h2{font-size:27px}.mechanics-root .answer-heading>p:last-child{font-size:16px}.mechanics-root .answer-option{gap:12px;min-height:86px;padding:21px 16px}.mechanics-root .option-content{font-size:17px;line-height:1.55}.mechanics-root .option-letter{width:20px;font-size:15px}.mechanics-root .option-selected-check{width:18px;height:18px}.mechanics-root .answer-help{font-size:15px}.mechanics-root .part-footer{gap:10px}.mechanics-root .part-footer .button{padding:10px 14px;font-size:15px}.mechanics-root .part-footer .button-secondary{padding-left:0}.mechanics-root .part-position{font-size:14px}.mechanics-root .answer-explanation p{font-size:17px}.mechanics-root .results-page{padding:35px 20px}.mechanics-root .results-intro h1{letter-spacing:-.6px;font-size:29px}.mechanics-root .results-intro>p:last-child{font-size:16px}.mechanics-root .score-summary{grid-template-columns:1fr 1fr;gap:24px;margin-top:25px;padding:24px}.mechanics-root .score-number{font-size:42px}.mechanics-root .score-main>span:last-child,.mechanics-root .score-breakdown{font-size:14px}.mechanics-root .score-actions{flex-direction:row;grid-column:span 2}.mechanics-root .score-actions>button{flex:1;padding-left:12px;padding-right:12px;font-size:14px}.mechanics-root .results-list-section{margin-top:32px}.mechanics-root .results-list-heading h2{font-size:18px}.mechanics-root .result-filter button{padding:7px 10px;font-size:14px}.mechanics-root .result-question{flex-direction:column;align-items:flex-start;gap:17px;padding:21px}.mechanics-root .result-question-top{gap:12px}.mechanics-root .result-part-links{justify-content:flex-start;max-width:100%;padding-left:33px}.mechanics-root .result-question p{font-size:15px}.mechanics-root .quiz-dialog{max-height:calc(100dvh - 32px);padding:25px}.mechanics-root .dialog-heading h2{font-size:21px}.mechanics-root .dialog-description{font-size:17px}.mechanics-root .dialog-actions{gap:10px}.mechanics-root .dialog-actions .button{font-size:15px}.mechanics-root .scan-dialog{width:calc(100vw - 20px);padding:20px 14px}.mechanics-root .scan-dialog .dialog-heading{padding:0 3px 16px;top:-20px}.mechanics-root .scan-dialog .dialog-heading h2{font-size:15px}}@media (max-width:370px){.mechanics-root .setup-page,.mechanics-root .quiz-page,.mechanics-root .results-page{padding-left:14px;padding-right:14px}.mechanics-root .setup-section,.mechanics-root .setup-start{padding-left:16px;padding-right:16px}.mechanics-root .level-option strong{font-size:13px}.mechanics-root .question-list-button{font-size:15px}.mechanics-root .answer-progress{font-size:13px}.mechanics-root .part-footer .button{gap:5px;padding-right:10px;font-size:14px}}@media (prefers-reduced-motion:reduce){.mechanics-root *,.mechanics-root :before,.mechanics-root :after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important}}
