.qc-art{background:var(--subject-preview-surface,var(--subject-surface,var(--mint)));min-width:0;color:var(--subject-ink,var(--ink));border-radius:12px;justify-content:center;align-items:center;padding:10px;display:flex}.qc-art>svg{flex:none;width:100%;height:auto;max-height:100%;display:block}.qc-art--spatial>svg{border-radius:9px;max-width:15rem}.qc-art .depth-matrix{aspect-ratio:1;flex:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:3px;width:auto;max-width:100%;height:100%;margin:0;display:grid}.qc-art .depth-cell{aspect-ratio:1;border:1px solid var(--control-border);background:var(--card);min-width:0;color:var(--ink);border-radius:4px;place-items:center;font-size:.75rem;font-weight:600;line-height:1;display:grid}.qc-art .depth-cell svg{width:100%;max-width:none;color:var(--ink)}.qc-art .depth-pattern-guides{fill:none;stroke:var(--line);stroke-width:.8px}.qc-mini-grid{aspect-ratio:1;background:var(--card);border-radius:8px;flex:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px;width:auto;max-width:100%;height:100%;padding:6px;display:grid}.qc-mini-grid>span{border:1px solid var(--tile-memory-line);background:var(--tile-memory);border-radius:4px}.qc-mini-grid>span.is-lit{border-color:var(--accent);background:var(--accent)}@media (forced-colors:active){.qc-art{border:1px solid canvastext}.qc-art svg{forced-color-adjust:none}.qc-mini-grid>span.is-lit{forced-color-adjust:none;background:canvastext}}.qc-shell{flex-direction:column;min-height:100dvh;display:flex}.qc-shell>:is(.site-header,.qc-page,.site-footer){flex-shrink:0;width:100%}.qc-page{width:100%;max-width:none;color:var(--ink);outline:none;flex:1;margin:0;padding:0}.qc-page [hidden]{display:none!important}.qc-page :where(h1,h2,h3,h4,p,ul,ol,dl,dd,figure){margin:0}.qc-page :is(h1,h2,h3,h4){letter-spacing:-.02em;text-wrap:balance;overflow-wrap:anywhere;font-weight:600}.qc-page :is(h1,h2,h3,h4)[tabindex="-1"]:focus{outline:none}.qc-page p{overflow-wrap:anywhere;line-height:1.6}.qc-page a{color:var(--accent);text-underline-offset:var(--underline-offset)}.qc-page :is(a,button,summary,label):focus-visible{outline:3px solid var(--accent);outline-offset:4px}.qc-page :focus{scroll-margin-top:96px}.qc-rail{width:min(calc(100% - 2 * var(--page-gutter)), 54rem);padding-block:32px var(--page-end,32px);margin-inline:auto}.qc-sr-only{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.qc-header{margin-bottom:24px}.qc-header h1{font-size:var(--text-title);letter-spacing:-.03em;line-height:1.12}.qc-page .qc-lead{max-width:46ch;color:var(--muted);text-wrap:pretty;margin-top:12px;font-size:1.125rem;line-height:1.6}.qc-page[data-qc-phase=run] .qc-header,.qc-page[data-qc-phase=result] .qc-header{margin-bottom:16px}.qc-page[data-qc-phase=run] .qc-header h1,.qc-page[data-qc-phase=result] .qc-header h1{font-size:var(--text-section);color:var(--muted);letter-spacing:-.01em;line-height:1.3}.qc-facts{color:var(--muted);flex-wrap:wrap;gap:8px;padding:0;font-size:.875rem;line-height:1.4;list-style:none;display:flex}.qc-facts li{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:5px 12px}.qc-parts{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-block:24px 28px;padding:0;list-style:none;display:grid}.qc-part{border:1px solid var(--line);border-radius:var(--radius,16px);background:var(--card);grid-template-rows:auto 1fr;min-width:0;display:grid;overflow:clip}.qc-part .qc-part-art{border-radius:0;height:9.5rem;padding:14px}.qc-part-words{align-content:start;gap:4px;min-width:0;padding:14px 16px 16px;display:grid}.qc-part-meta{color:var(--muted);font-size:.8125rem;line-height:1.45}.qc-part-name{font-size:1.0625rem;font-weight:600;line-height:1.35}.qc-part-task{color:var(--muted);font-size:.9375rem;line-height:1.5}.qc-start-row{flex-wrap:wrap;align-items:center;gap:12px 24px;display:flex}.qc-page .qc-button{width:auto;min-width:15rem;max-width:100%;padding-inline:24px;line-height:1.3}.qc-page .qc-note{color:var(--muted);flex:18rem;font-size:.875rem;line-height:1.5}.qc-page .qc-last{border-radius:var(--control-radius,12px);background:var(--accent-soft);color:var(--ink);margin-top:20px;padding:12px 16px;font-size:.9375rem}.qc-link-button{min-height:0;color:var(--accent);font:inherit;text-underline-offset:var(--underline-offset);cursor:pointer;background:0 0;border:0;padding:0;font-weight:600;text-decoration:underline;display:inline}.qc-fallback{margin-top:24px}.qc-fallback ul{flex-wrap:wrap;gap:4px 24px;margin-top:8px;padding:0;list-style:none;display:flex}.qc-fallback a{align-items:center;min-height:44px;display:inline-flex}.qc-progress{color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 16px;margin-bottom:12px;font-size:.875rem;line-height:1.5;display:flex}.qc-page .qc-progress p{line-height:1.5}.qc-progress-question{font-variant-numeric:tabular-nums}.qc-workspace{border:1px solid var(--line);border-radius:var(--radius,16px);background:var(--card);min-width:0;padding:24px 28px 28px}.qc-stage-heading{font-size:var(--text-section);line-height:1.3}.qc-page .qc-instruction{color:var(--muted);text-wrap:pretty;margin-top:8px;font-size:1rem}.qc-example-card{background:var(--subject-preview-surface,var(--subject-surface,var(--mint)));color:var(--ink);border-radius:12px;gap:14px;margin-top:20px;padding:18px;display:grid}.qc-example-label{color:var(--subject-ink,var(--ink));letter-spacing:.02em;text-transform:uppercase;font-size:.8125rem;font-weight:650}:root:lang(ja) .qc-example-label,:root:lang(ko) .qc-example-label{letter-spacing:0;text-transform:none}.qc-page .qc-example-answer{font-size:.9375rem;line-height:1.6}.qc-example-answer strong{font-weight:650}.qc-example-steps{margin:0;font-size:.9375rem;line-height:1.55}.qc-figure{width:100%;max-width:40rem;margin-inline:auto;line-height:0}.qc-figure svg{width:100%;height:auto;display:block}.qc-question>.qc-figure{margin-top:20px}.qc-choices{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:20px;display:grid}.qc-choice{border:1px solid var(--control-border);border-radius:var(--control-radius,12px);background:var(--card);min-width:0;min-height:60px;color:var(--ink);font:inherit;text-align:start;cursor:pointer;touch-action:manipulation;align-items:center;gap:12px;padding:12px 16px;font-weight:600;line-height:1.4;display:flex}.qc-choice kbd{border:1px solid var(--line);width:26px;height:26px;color:var(--muted);font:inherit;border-radius:6px;flex:none;justify-content:center;align-items:center;font-size:.8125rem;font-weight:500;display:inline-flex}.qc-choice:hover:not([data-answer-state]){border-color:var(--accent)}.qc-choice[data-answer-state]{padding:11px 15px}.qc-board{margin-top:20px}.qc-board .depth-matrix{width:min(100%,18.5rem)}.qc-board--example .depth-matrix{width:min(100%,14rem)}.qc-board--example .depth-cell:last-child,.qc-explanation .depth-cell:last-child{border:2px solid var(--accent)}.qc-options-field{border:0;min-width:0;margin:20px 0 0;padding:0}.qc-pattern-options .depth-option{gap:4px;padding:10px 8px 8px}.qc-pattern-options .depth-option[data-answer-state]{padding:9px 7px 7px}.qc-pattern-options .depth-option-svg{max-width:6.5rem}.qc-page .vm-grid{gap:6px;width:100%;max-width:22.5rem;margin:20px auto 0;display:grid}.qc-page .vm-row{grid-template-columns:repeat(var(--vm-size), minmax(0, 1fr));gap:6px;display:grid}.qc-page .vm-cell{min-width:0}.qc-page .vm-tile{aspect-ratio:1;border:1px solid var(--tile-memory-line);background:var(--tile-memory);width:100%;min-height:48px;color:var(--ink);font:600 1.4rem/1 var(--font-body);cursor:default;touch-action:manipulation;border-radius:10px;place-items:center;padding:0;display:grid}.qc-page button.vm-tile:not(:disabled){cursor:pointer}.qc-page button.vm-tile:disabled{opacity:1}.qc-page .vm-tile:focus-visible{outline:3px solid var(--accent);outline-offset:2px;z-index:1;position:relative}.qc-page button.vm-tile[data-state=empty]:not(:disabled):hover{border-color:var(--accent);background:var(--lavender)}.qc-page .vm-tile:is([data-state=lit],[data-state=selected]){border-color:var(--accent);background:var(--accent);color:var(--accent-ink)}.qc-page .vm-tile[data-state=correct]{border:2px solid var(--right-line);background:var(--right-bg);color:var(--right-ink)}.qc-page .vm-tile[data-state=missing]{border:2px dashed var(--accent);background:var(--card);color:var(--ink)}.qc-page .vm-tile[data-state=extra]{border:2px solid var(--wrong-line);background:var(--wrong-bg);color:var(--wrong-ink)}.qc-example-card .vm-grid{max-width:11rem;margin:0 auto}.qc-example-card .vm-tile{min-height:0;font-size:1rem}.qc-page .qc-selection{color:var(--muted);text-align:center;margin-top:14px;font-size:.875rem}.qc-page .qc-help{color:var(--muted);text-align:center;margin-top:4px;font-size:.8125rem}.qc-memory-legend{color:var(--muted);flex-wrap:wrap;justify-content:center;gap:6px 20px;margin-top:14px;padding:0;font-size:.875rem;list-style:none;display:flex}.qc-memory-legend b{margin-inline-end:2px;font-size:1.05rem}.vm-key-correct{color:var(--good)}.vm-key-missing{color:var(--ink)}.vm-key-extra{color:var(--bad)}.qc-dock{flex-wrap:wrap;justify-content:flex-end;gap:12px;padding:20px 0 16px;display:flex}.qc-page .qc-secondary{min-width:10rem}.qc-result-head{gap:6px;display:grid}.qc-result-head>.qc-stage-heading{color:var(--muted);letter-spacing:0;font-size:1rem;line-height:1.5}.qc-result-date{color:var(--muted);font-size:.9375rem}.qc-page .qc-total{letter-spacing:-.02em;color:var(--ink);font-variant-numeric:tabular-nums;margin-top:2px;font-size:clamp(1.5rem,1.25rem + .9vw,2rem);font-weight:600;line-height:1.3}.qc-page .qc-result-note{color:var(--muted);font-size:.9375rem}.qc-result-parts{gap:12px;margin-block:24px;padding:0;list-style:none;display:grid}.qc-result-part{border:1px solid var(--line);border-radius:var(--radius,16px);background:var(--card);grid-template-columns:6rem minmax(0,1fr) auto;align-items:center;gap:16px 20px;min-width:0;padding:12px 20px 12px 12px;display:grid}.qc-result-part .qc-part-art{border-radius:10px;height:5.5rem;padding:8px}.qc-result-part h3{font-size:1.0625rem;line-height:1.35}.qc-result-part-words{gap:2px;min-width:0;display:grid}.qc-page .qc-result-score{font-variant-numeric:tabular-nums;flex-wrap:wrap;align-items:center;gap:4px 12px;margin-top:2px;font-weight:600;display:flex}.qc-marks{gap:4px;display:inline-flex}.qc-mark{border-radius:50%;place-items:center;width:1.5rem;height:1.5rem;font-size:.8125rem;font-weight:700;line-height:1;display:inline-grid}.qc-mark[data-right=true]{background:var(--right-bg);color:var(--right-ink)}.qc-mark[data-right=false]{border:1.5px dashed var(--wrong-line);background:var(--wrong-bg);color:var(--wrong-ink)}.qc-result-link{text-align:end;justify-items:end;gap:2px;min-width:0;display:grid}.qc-result-link a{align-items:center;min-height:44px;font-weight:600;display:inline-flex}.qc-page .qc-result-link p{color:var(--muted);font-size:.875rem;line-height:1.4}.qc-result-actions{flex-wrap:wrap;align-items:center;gap:8px 20px;margin-bottom:32px;display:flex}.qc-page .qc-result-actions p{color:var(--muted);font-size:.9375rem}.qc-missed{gap:16px;margin-bottom:32px;display:grid}.qc-missed>h3,.qc-signin h3,.qc-next h3{font-size:var(--text-sub);line-height:1.35}.qc-missed-item{border:1px solid var(--line);border-radius:var(--radius,16px);background:var(--card);gap:14px;min-width:0;padding:20px 24px 24px;display:grid}.qc-missed-item h4{color:var(--muted);letter-spacing:0;font-size:.9375rem;font-weight:600}.qc-missed-item>.qc-figure{margin-top:0}.qc-page .qc-tip{color:var(--muted);font-size:.9375rem}.qc-answers{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.qc-answers>div{border-radius:var(--control-radius,12px);gap:2px;min-width:0;padding:10px 14px;display:grid}.qc-answers dt{font-size:.8125rem;font-weight:600}.qc-answers dd{overflow-wrap:anywhere;margin:0;font-weight:600}.qc-review-columns{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);align-items:start;gap:20px 36px;display:grid}.qc-explanation h3{margin-bottom:8px;font-size:1.0625rem;line-height:1.4}.qc-explanation .depth-explanation-steps{font-size:.9375rem;line-height:1.55}.qc-explanation .depth-matrix{width:min(100%,15rem);margin:16px 0 0}.qc-comparison .depth-pattern-comparison{margin-top:0}.qc-comparison .depth-pattern-comparison h3{font-size:1.0625rem;line-height:1.4}.qc-comparison .depth-pattern-comparison p{color:var(--muted);font-size:.9375rem}.qc-all-right{margin-bottom:32px;font-weight:600}.qc-signin{gap:8px;margin-bottom:32px;display:grid}.qc-signin-row{flex-wrap:wrap;align-items:center;gap:8px 20px;margin-top:8px;display:flex}.qc-page a.btn-primary{color:var(--accent-ink)}.qc-page .qc-signin-note{color:var(--muted);font-size:.9375rem}html[data-signed-in] .qc-signin{display:none!important}.qc-next{border-radius:var(--radius,16px);background:var(--accent-soft);gap:8px;padding:20px 24px;display:grid}.qc-page .qc-next p{color:var(--ink)}.qc-next-links{flex-wrap:wrap;gap:4px 28px;display:flex}.qc-next-links a{align-items:center;min-height:44px;font-weight:600;display:inline-flex}.qc-page .qc-deeper{max-width:62ch;color:var(--muted);text-wrap:pretty;margin-top:20px;font-size:.9375rem}.qc-deeper a{font-weight:600;display:inline-block}.qc-page .qc-kept{color:var(--muted);margin-top:16px;font-size:.875rem}@media (width<=47.5em){.qc-parts{grid-template-columns:minmax(0,1fr);gap:10px;margin-block:16px 20px}.qc-part{grid-template-rows:none;grid-template-columns:5.5rem minmax(0,1fr)}.qc-part .qc-part-art{height:auto;min-height:5.5rem;padding:8px}.qc-part .qc-art .depth-matrix,.qc-part .qc-mini-grid{width:100%;height:auto}.qc-part-words{gap:2px;padding:10px 14px}.qc-part-name{font-size:1rem}.qc-part-task{font-size:.875rem;line-height:1.45}.qc-review-columns{grid-template-columns:minmax(0,1fr)}.qc-result-part{grid-template-columns:4.5rem minmax(0,1fr);padding:12px}.qc-result-part .qc-part-art{height:4.5rem;padding:6px}.qc-result-link{text-align:start;grid-column:1/-1;justify-items:start;padding-inline-start:4px}}@media (width<=37.5em){.qc-rail{padding-top:20px}.qc-workspace{padding:18px 16px 20px}.qc-board .depth-matrix{width:min(100%,15.5rem)}.qc-choice[data-answer-state]{padding:9px 11px}.qc-example-card{padding:14px}.qc-choices{gap:8px}.qc-choice{min-height:56px;padding:10px 12px}.qc-dock{padding-top:16px}.qc-dock>.qc-button{flex:100%;min-width:0}.qc-start-row>.qc-button,.qc-result-actions>.qc-button,.qc-signin-row>.qc-button{width:100%;min-width:0}.qc-missed-item{padding:16px}.qc-answers{grid-template-columns:minmax(0,1fr)}}@media (hover:none) and (pointer:coarse){.qc-choice kbd{display:none}}@media (forced-colors:active){.qc-part,.qc-workspace,.qc-missed-item,.qc-result-part,.qc-choice{border-color:canvastext}.qc-page .vm-tile{border-color:buttontext}.qc-page .vm-tile:is([data-state=lit],[data-state=selected]){forced-color-adjust:none;color:highlighttext;background:highlight}.qc-mark[data-right=false]{border-color:canvastext}.qc-signin-row>.btn{border:1px solid buttontext}.qc-figure svg{forced-color-adjust:none}}