.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.text-ok{color:var(--ok)}.text-ng{color:var(--ng)}.link-btn{min-width:44px;min-height:44px;color:var(--brand);text-underline-offset:3px;cursor:pointer;white-space:nowrap;background:0 0;border:0;justify-content:center;align-items:center;padding:0 4px;font-weight:700;text-decoration:underline;display:inline-flex}.study-wrap{max-width:640px}.study-hero{padding:28px 0 16px}.study-hero h1{margin-bottom:4px}.study-hero p{margin:0;font-size:.92rem}.run-hero{padding:20px 0 12px}.run-hero h1{margin-bottom:4px;font-size:1.4rem}.run-hero p:last-child{margin-bottom:0}.run-hero .small:first-child{margin-bottom:8px}.run-hero .small:first-child a{align-items:center;min-height:44px;font-weight:700;text-decoration:none;display:inline-flex}.q-tools{flex-wrap:wrap;gap:8px;margin:-4px 0 12px;display:flex}.q-tool{border:1px solid var(--line);background:var(--surface);min-height:44px;color:var(--text);cursor:pointer;border-radius:999px;align-items:center;gap:6px;padding:0 14px;font-size:.875rem;font-weight:700;display:inline-flex}.q-tool svg{color:var(--brand);flex:none}.q-tool:hover{border-color:var(--brand)}.q-tool.is-on{background:var(--brand-soft);border-color:var(--brand)}.native-q{border-left:3px solid var(--brand);margin:0 0 16px}.native-q-text{margin:0;font-size:1rem;line-height:1.75}.native-choices{margin-top:8px}.native-choices summary{cursor:pointer;min-height:44px;color:var(--brand);align-items:center;font-size:.875rem;font-weight:700;list-style:none;display:inline-flex}.native-choices summary::-webkit-details-marker{display:none}.native-choices summary:before{content:"+";background:var(--brand-soft);border-radius:50%;place-items:center;width:20px;height:20px;margin-right:6px;font-size:.9rem;line-height:1;display:inline-grid}.native-choices[open] summary:before{content:"−"}.native-choices ol{margin:0 0 4px;padding-left:1.4em}.verdict-feedback{background:var(--surface);border-radius:999px;margin-top:6px;padding:2px 10px;font-size:.85rem;font-weight:700;display:inline-block}.explain-native{font-size:1rem;line-height:1.8}.run-progress{background:var(--surface-2);border-radius:99px;height:6px;overflow:hidden}.run-progress>span{background:var(--brand);border-radius:99px;height:100%;transition:width .25s;display:block}.run-progress.big{height:10px;margin:8px 0 12px}.run-head{justify-content:space-between;align-items:center;gap:8px;min-height:44px;display:flex}.resume-note{background:var(--brand-soft);border-radius:12px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:4px 12px;margin:0;padding:4px 4px 4px 14px;font-size:.875rem;display:flex}.done-card,.empty-card{text-align:center}.done-title{margin-bottom:4px;font-size:1.15rem;font-weight:700}.done-score{margin:0;font-size:2rem;font-weight:700;line-height:1.3}.done-card .stack,.empty-card .stack{text-align:left;margin-top:16px}.empty-icon{background:var(--ok-soft);width:48px;height:48px;color:var(--ok);border-radius:50%;place-items:center;margin:0 auto 12px;display:grid}.skeleton .skeleton-line,.skeleton .skeleton-choice{background:var(--surface-2);border-radius:8px;margin-top:12px}.skeleton-line{height:18px}.skeleton-line.short{width:60%}.skeleton-choice{height:56px;border-radius:12px!important}.free-note{background:var(--warn-soft);border-radius:12px;margin:0;padding:12px 14px;font-size:.875rem;line-height:1.7}.free-note a{white-space:nowrap;font-weight:700}.lock-card{text-align:left}.lock-icon{background:var(--brand-soft);width:44px;height:44px;color:var(--brand);border-radius:12px;place-items:center;margin-bottom:12px;display:grid}.lock-sub{margin:12px 0 8px;font-size:.92rem;font-weight:700}.check-list{gap:8px;margin:0 0 16px;padding:0;list-style:none;display:grid}.check-list li{align-items:flex-start;gap:8px;font-size:.95rem;display:flex}.check-list svg{color:var(--ok);flex:none;margin-top:4px}.lock-price{margin:0 0 4px;font-size:1.5rem;font-weight:700}.study-home>*+*{margin-top:12px}.home-h2{font-size:1.05rem;margin:28px 0 8px!important}.mode-icon{background:var(--brand-soft);width:40px;height:40px;color:var(--brand);border-radius:12px;flex:none;place-items:center;display:grid}.mode-text{flex:1;gap:2px;min-width:0;display:grid}.mode-text b{font-size:.98rem;line-height:1.45}.mode-text span{color:var(--muted);font-size:.82rem;line-height:1.5}.next-card{background:var(--strong);border-color:var(--strong);color:var(--strong-ink);padding:16px}.next-card.is-pending{visibility:hidden}.next-label{letter-spacing:.04em;color:var(--strong-muted);margin:0 0 8px;font-size:.8rem;font-weight:700}.next-btn{background:var(--surface);min-height:64px;color:var(--text);box-shadow:var(--shadow);border-radius:12px;align-items:center;gap:12px;padding:14px 14px 14px 16px;text-decoration:none;display:flex}.next-text{flex:1;gap:2px;min-width:0;display:grid}.next-text b{font-size:1.05rem;line-height:1.45}.next-text span{color:var(--muted);font-size:.82rem;line-height:1.5}.next-arrow{background:var(--brand);width:36px;height:36px;color:var(--brand-ink);border-radius:50%;flex:none;place-items:center;display:grid}.progress-card{align-items:center;gap:16px;padding:16px;display:flex}.ring{flex:none}.ring-bg{fill:none;stroke:var(--surface-2);stroke-width:8px}.ring-fg{fill:none;stroke:var(--brand);stroke-width:8px;stroke-linecap:round;transform-origin:38px 38px;transition:stroke-dashoffset .4s;transform:rotate(-90deg)}.ring-text{fill:var(--text);font-size:15px;font-weight:700;font-family:var(--font)}.progress-text{min-width:0}.progress-text p{margin:0}.progress-title{color:var(--muted);font-size:.8rem;font-weight:700}.progress-main{font-size:1.2rem;font-weight:700;line-height:1.4}.progress-sub{color:var(--muted);flex-wrap:wrap;gap:2px 12px;font-size:.82rem;display:flex;margin-top:2px!important}.streak{color:#c2620a;align-items:center;gap:2px;font-weight:700;display:inline-flex}.tile-grid{grid-template-columns:1fr 1fr;gap:12px;display:grid}.tile{color:var(--text);flex-direction:column;gap:4px;min-width:0;padding:14px;text-decoration:none;display:flex}.tile:hover{border-color:var(--brand)}.tile-label{color:var(--muted);align-items:center;gap:6px;font-size:.8rem;font-weight:700;display:flex}.tile-label svg{color:var(--brand);flex:none;width:18px;height:18px}.tile-value{font-size:1.35rem;line-height:1.3}.tile-value.is-warn{color:var(--ng)}.tile-value.is-ok{color:var(--ok)}.tile-value.is-muted{color:var(--muted);font-size:.95rem;font-weight:700;line-height:1.5}.tile-sub{color:var(--muted);font-size:.75rem;line-height:1.5}.tile-link{min-height:32px;color:var(--brand);align-items:center;gap:2px;margin-top:auto;padding-top:8px;font-size:.85rem;font-weight:700;display:inline-flex}.mode-list,.topic-stats,.weak-list,.history{gap:8px;margin:0;padding:0;list-style:none;display:grid}.mode-row,.words-link{background:var(--surface);border:1px solid var(--line);min-height:64px;color:var(--text);border-radius:12px;align-items:center;gap:12px;padding:12px 14px;text-decoration:none;display:flex}.mode-row>svg:last-child,.words-link>svg:last-child{color:var(--muted);flex:none}.mode-row:hover,.words-link:hover,.topic-row:hover{border-color:var(--brand)}.words-link{padding:14px;margin-top:20px!important}.topic-block .domain-title{margin:12px 0 8px;font-size:.9rem}.topic-row{background:var(--surface);border:1px solid var(--line);min-height:44px;color:var(--text);border-radius:12px;gap:6px;padding:12px 14px;text-decoration:none;display:grid}.topic-row-head{justify-content:space-between;align-items:baseline;gap:12px;display:flex}.topic-row-name{font-size:.95rem;font-weight:700;line-height:1.5}.topic-row-acc{color:var(--muted);white-space:nowrap;flex:none;font-size:.8rem;font-weight:700}.topic-row-bar{background:var(--surface-2);border-radius:99px;height:6px;display:block;overflow:hidden}.topic-row-bar .fill{background:var(--ng);opacity:.9;border-radius:99px;height:100%;display:block;overflow:hidden}.topic-row-bar .fill-ok{background:var(--brand);height:100%;display:block}.topic-row-foot{color:var(--muted);font-size:.75rem}.exam-ask{border-color:var(--brand)}.exam-ask-head{align-items:center;gap:12px;margin-bottom:8px;display:flex}.exam-ask-head b{font-size:1.02rem;line-height:1.5}.exam-ask p{margin:0 0 12px}.exam-form{gap:8px;display:flex}.exam-form input{border:1px solid var(--line);background:var(--surface);min-width:0;min-height:48px;color:var(--text);font:inherit;border-radius:10px;flex:1;padding:8px 12px}.exam-strip{border-radius:var(--radius);background:var(--brand-soft);width:100%;color:var(--text);text-align:left;font:inherit;border:0;align-items:center;gap:12px;padding:8px 8px 8px 14px;display:flex}.exam-strip>svg{color:var(--brand);flex:none}.exam-strip.is-empty{cursor:pointer;min-height:48px;color:var(--brand);font-weight:700}.exam-strip-text{flex:1;min-width:0;display:grid}.exam-strip-text b{font-size:1rem;line-height:1.5}.exam-strip-text span{color:var(--muted);font-size:.8rem;line-height:1.5}.install-hint{align-items:flex-start;gap:12px;display:flex}.install-text{flex:1;gap:4px;min-width:0;display:grid}.install-text>span{color:var(--muted);font-size:.85rem}.install-text .btn-row{margin-top:8px}.transfer summary{cursor:pointer;align-items:center;min-height:44px;font-weight:700;list-style:none;display:flex}.transfer summary::-webkit-details-marker{display:none}.transfer summary:after{content:"+";color:var(--muted);margin-left:auto;font-size:1.2rem}.transfer[open] summary:after{content:"−"}.transfer{padding:8px 16px}.transfer[open]{padding-bottom:16px}.code-row{align-items:stretch;gap:8px;display:flex}.code-row textarea{border:1px solid var(--line);background:var(--surface);min-width:0;color:var(--text);resize:vertical;word-break:break-all;border-radius:10px;flex:1;padding:8px 10px;font:.8rem/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}.resume-card{border-color:var(--brand);background:var(--brand-soft)}.resume-head{color:var(--brand);align-items:center;gap:8px;display:flex}.resume-head b{color:var(--text)}.resume-card p{margin:4px 0 12px}.mock-nav{grid-template-columns:1fr 1fr;gap:10px;margin-top:12px;display:grid}.mock-grid{grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px;margin:16px 0;display:grid}.mock-cell{border:1px solid var(--line);background:var(--surface);min-height:44px;color:var(--text);cursor:pointer;font-variant-numeric:tabular-nums;border-radius:8px;padding:0;font-size:.85rem;font-weight:700}.result-hero{text-align:center;padding:20px 16px}.result-hero.is-pass{background:var(--ok-soft);border-color:var(--ok)}.result-label{color:var(--muted);margin:0;font-size:.85rem;font-weight:700}.result-hero .score-big{margin:4px 0}.result-hero .result-pass,.result-hero .result-fail{margin-bottom:12px;font-size:1.1rem}.gauge{background:var(--surface-2);border-radius:99px;height:14px;margin:0 4px;position:relative}.result-hero.is-pass .gauge{background:var(--surface)}.gauge-fill{background:var(--ng);border-radius:99px;position:absolute;inset:0 auto 0 0}.result-hero.is-pass .gauge-fill{background:var(--ok)}.gauge-line{background:var(--text);border-radius:2px;width:3px;margin-left:-1.5px;position:absolute;top:-5px;bottom:-5px}.gauge-labels{color:var(--muted);justify-content:space-between;height:1.6em;margin:6px 4px 8px;font-size:.75rem;display:flex;position:relative}.gauge-pass{color:var(--text);white-space:nowrap;font-weight:700;position:absolute;transform:translate(-50%)}.review-added p{margin:0 0 12px;font-weight:700;line-height:1.6}.weak-row{background:var(--surface-2);min-height:44px;color:var(--text);border-radius:10px;grid-template-columns:1fr auto;align-items:center;gap:2px 12px;padding:10px 12px;text-decoration:none;display:grid}.weak-name{font-size:.92rem;font-weight:700;line-height:1.5}.weak-score{font-variant-numeric:tabular-nums;color:var(--ng);font-weight:700}.weak-go{color:var(--brand);grid-column:1/-1;align-items:center;gap:2px;font-size:.82rem;font-weight:700;display:inline-flex}.result-actions .btn{flex:140px}.history li{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:4px 12px;font-size:.88rem;display:grid}.history-name{line-height:1.5}.history-bar{background:var(--surface-2);border-radius:99px;grid-area:2/1/auto/-1;height:8px;display:block;position:relative}.history-bar>span{background:var(--ng);opacity:.85;border-radius:99px;position:absolute;inset:0 auto 0 0}.history-bar>span.ok{background:var(--ok);opacity:1}.history-bar>i{background:var(--text);width:2px;position:absolute;top:-3px;bottom:-3px}.history b{font-variant-numeric:tabular-nums}.share-box{gap:10px;display:grid}.share-title{margin:0;font-weight:700;line-height:1.5}.share-apps{flex-wrap:wrap;gap:8px;display:flex}.share-app{border:1px solid var(--line);background:var(--surface);min-width:44px;min-height:44px;color:var(--text);cursor:pointer;border-radius:999px;justify-content:center;align-items:center;gap:6px;padding:0 14px;font-size:.875rem;font-weight:700;text-decoration:none;display:inline-flex}.share-app:before{content:"";opacity:.9;background:currentColor;border-radius:50%;width:10px;height:10px}.share-app:has(svg):before{display:none}.share-zalo:before{background:#0068ff}.share-messenger:before{background:#a033ff}.share-facebook:before{background:#1877f2}.share-viber:before{background:#7360f2}.share-whatsapp:before{background:#25d366}.share-line:before{background:#06c755}.share-x:before{background:#000}.share-toast{min-height:1.4em;color:var(--ok);margin:0;font-size:.85rem;font-weight:700}.words-start p{margin:0 0 8px}.words-meter{background:var(--surface-2);border-radius:99px;height:8px;margin:12px 0 6px;overflow:hidden}.words-meter>span{background:var(--ok);height:100%;display:block}.words-run{gap:12px;display:grid}.word-card{border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);min-height:240px;box-shadow:var(--shadow);color:var(--text);cursor:pointer;text-align:center;font:inherit;align-content:center;place-items:center;gap:8px;padding:24px 16px;display:grid}.word-card.is-flipped{cursor:default;border-color:var(--brand)}.word-ja{font-size:2rem;font-weight:700;line-height:1.4}.word-reading{color:var(--brand);font-size:1.1rem;font-weight:700}.word-meaning{font-size:1.15rem;line-height:1.6}.word-flip{color:var(--muted);font-size:.85rem}.word-actions{grid-template-columns:1fr 1fr;gap:10px;display:grid}.words-list-wrap{margin-top:8px}.words-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);gap:0;margin:0 0 12px;padding:0;list-style:none;display:grid;overflow:hidden}.words-list li{border-top:1px solid var(--line);grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 12px;padding:10px 14px;display:grid}.words-list li:first-child{border-top:0}.wl-ja{font-weight:700;line-height:1.5}.wl-reading{color:var(--muted);grid-column:1;font-size:.78rem;line-height:1.5}.wl-meaning{grid-area:1/2/span 2;align-self:center;font-size:.9rem;line-height:1.6}@media (min-width:640px){.words-list{grid-template-columns:1fr 1fr}.words-list li:nth-child(2){border-top:0}.words-list li:nth-child(odd){border-right:1px solid var(--line)}}.study-eyebrow{color:var(--brand);font-weight:700;line-height:1.6;margin:0 0 6px!important;font-size:.8rem!important}.choice.is-correct .choice-num{background:var(--ok);color:#fff}.choice.is-wrong .choice-num{background:var(--ng);color:#fff}.choice-body{min-width:0;display:block}.choice-tag{border-radius:999px;margin-top:4px;padding:0 8px;font-size:.72rem;font-weight:700;line-height:1.6;display:table}.choice-tag.ok{background:var(--ok);color:#fff}.choice-tag.ng{background:var(--ng);color:#fff}.question .choice.is-selected{background:var(--surface-2);border-color:var(--text);border-width:2px}.question .choice.is-selected .choice-num{background:var(--text);color:var(--bg)}.answer-bar{z-index:20;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:var(--surface);border-top:3px solid var(--ng);position:fixed;bottom:0;left:0;right:0;box-shadow:0 -6px 24px #1018281f}.answer-bar.ok{border-top-color:var(--ok)}.answer-bar-inner{align-items:center;gap:12px;max-width:608px;margin:0 auto;display:flex}.answer-bar-mark{color:#fff;background:var(--ng);border-radius:50%;flex:none;place-items:center;width:36px;height:36px;font-weight:700;display:grid}.answer-bar.ok .answer-bar-mark{background:var(--ok)}.answer-bar-text{flex:1;min-width:0;line-height:1.4;display:grid}.answer-bar-text b{color:var(--ng);font-size:1.05rem}.answer-bar.ok .answer-bar-text b{color:var(--ok)}.answer-bar-text span{font-size:.85rem}.answer-bar .btn{flex:none;padding:10px 18px}.lock-saved{background:var(--ok-soft);border-radius:10px;align-items:flex-start;gap:8px;margin:0 0 12px;padding:10px 12px;font-size:.85rem;line-height:1.6;display:flex}.lock-saved svg{color:var(--ok);flex:none;margin-top:2px}.lock-links{flex-wrap:wrap;justify-content:space-between;gap:4px 16px;display:flex}.lock-links a{align-items:center;min-height:44px;font-size:.9rem;font-weight:700;display:inline-flex}.mode-row.is-disabled{opacity:.6;background:var(--surface-2)}.weak-badge{background:var(--ng);color:#fff;border-radius:999px;flex:none;padding:0 8px;font-size:.7rem;font-weight:700;line-height:1.8}.topic-row.is-weak{border-color:var(--ng)}.topic-row-head{flex-wrap:nowrap}.topic-row-name{flex:1;min-width:0}.mock-chips{flex-wrap:wrap;gap:4px 0;margin:0 0 4px;padding:0;list-style:none;display:flex}.mock-chips li{color:var(--muted);font-size:.85rem;line-height:1.6}.mock-chips li+li:before{content:"·";margin:0 8px}.resume-card{margin-bottom:4px}.set-last{flex-wrap:wrap;align-items:center;gap:4px 8px;margin-top:2px;display:flex}.pf-badge{white-space:nowrap;border-radius:999px;padding:0 8px;font-size:.72rem;font-weight:700;line-height:1.8;display:inline-block}.pf-badge.ok{background:var(--ok-soft);color:var(--ok)}.pf-badge.ng{background:var(--ng-soft);color:var(--ng)}.mock-cell{min-height:48px}.mock-cell.done{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}.mock-cell.current{outline:3px solid var(--text);outline-offset:2px}.mock-cell.flagged{position:relative}.mock-cell.flagged:after{content:"";background:#e08a00;border-radius:50%;width:8px;height:8px;position:absolute;top:4px;right:4px}.mock-legend{color:var(--muted);flex-wrap:wrap;gap:4px 16px;margin:-4px 0 16px;padding:0;font-size:.8rem;list-style:none;display:flex}.mock-legend li{align-items:center;gap:6px;display:inline-flex}.mock-legend .lg{border:1px solid var(--line);background:var(--surface);border-radius:4px;width:14px;height:14px;display:inline-block;position:relative}.mock-legend .lg.done{background:var(--brand);border-color:var(--brand)}.mock-legend .lg.current{outline:2px solid var(--text);outline-offset:1px}.mock-legend .lg.flagged:after{content:"";background:#e08a00;border-radius:50%;width:6px;height:6px;position:absolute;top:2px;right:2px}.flag-btn{margin-top:12px}.flag-btn.is-on{background:#fff4dc;border-color:#e08a00}.flag-btn svg{color:#e08a00}.review-added .result-actions{flex-wrap:wrap;gap:10px;display:flex}.review-added .result-actions .btn{flex:150px}.unlock-card{border-color:var(--brand);background:var(--brand-soft);gap:8px;display:grid}.unlock-card b{font-size:1.05rem;line-height:1.5}.unlock-card p{margin:0}.unlock-card>a.small{justify-self:center;align-items:center;min-height:44px;font-weight:700;display:inline-flex}.history-legend{align-items:center;gap:6px;margin:-4px 0 10px;display:flex}.history-legend i{background:var(--text);width:2px;height:14px;display:inline-block}.share-box.is-quiet .share-title{font-size:.92rem}.words-details summary{cursor:pointer;justify-content:space-between;align-items:center;min-height:48px;margin:20px 0 8px;list-style:none;display:flex}.words-details summary::-webkit-details-marker{display:none}.words-details summary h2{margin:0;font-size:1.05rem}.words-details summary:after{content:"+";color:var(--muted);font-size:1.3rem}.words-details[open] summary:after{content:"−"}.question .verdict{background:var(--surface-2);border-left:4px solid var(--ng)}.question .verdict.ok{border-left-color:var(--ok)}.lock-free{color:var(--ok);margin:0 0 8px;font-weight:700}.question .verdict{scroll-margin-top:160px}.mock-chips li+li:before{content:none}.mock-chips li{white-space:nowrap}.mock-chips li:not(:last-child):after{content:"·";margin:0 8px}.tile-value small{color:var(--muted);font-size:.8rem;font-weight:700}.tile-sub .pf-badge{margin-left:4px}.history-name{white-space:nowrap}.share-app:before{display:none}.share-app{color:#fff;background:var(--muted);border:0}.share-zalo{background:#0068ff}.share-messenger{background:#8a3ffc}.share-facebook{background:#1877f2}.share-viber{background:#7360f2}.share-whatsapp{background:#128c4a}.share-line{background:#06a54b}.share-x{background:#000}.share-app:has(svg){background:var(--surface);color:var(--text);border:1px solid var(--line)}.lock-card .check-list{margin-top:16px}.lock-card .lock-price{margin-top:4px}.verdict-feedback{color:var(--muted);background:0 0;border-radius:0;padding:0;font-size:.85rem;display:block}.verdict-feedback:before{content:"↻ "}.free-note a{align-items:center;min-height:0;display:inline}.weak-row{min-height:56px}.weak-go{min-height:28px}.question .verdict{padding-top:12px}.question .verdict .explain,.question .verdict .explain h3:first-child{margin-top:0}.transfer summary{gap:12px}.transfer summary:after{flex-shrink:0;margin-left:auto}.share-toast:empty{display:none}.verdict-feedback{margin:0 0 12px}.mock-legend .lg.current{background:var(--surface);outline:3px solid var(--text);outline-offset:1px}.mock-chips li:not(:last-child):after{content:none}.mock-chips li:not(:last-child){margin-right:14px}.mock-chips li+li{position:relative}.mock-chips li+li:before{content:"·";position:absolute;left:-10px}.mock-chips{padding-left:0}.mock-rules{color:var(--muted);margin:0;font-size:.85rem;line-height:1.8}.set-meta{margin-top:4px;line-height:1.6}.set-unlock-note{color:var(--muted);align-items:flex-start;gap:6px;margin:8px 0 0;font-size:.875rem;line-height:1.6;display:flex}.set-unlock-note svg{flex:none;margin-top:.3em}.q-index-foot{text-align:center;margin:24px 0 0;font-size:.875rem}.topic-row-lock{color:var(--muted);align-items:center;gap:4px;margin-left:10px;font-weight:700;display:inline-flex}.set-item .btn{white-space:nowrap;flex:none}:lang(ja) .study-wrap :is(.set-meta,.small,.muted,.free-note,.resume-card p,.history-name,.lock-saved){word-break:auto-phrase}.history-review{align-items:center;min-height:44px;margin-top:4px;font-weight:700;display:inline-flex}.set-item{flex-wrap:wrap;row-gap:10px}.set-item>div{flex:160px;min-width:0}.mock-nav{z-index:4;background:var(--bg);padding:10px 0 calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);position:sticky;bottom:0}.mock-bar .timer{white-space:nowrap;align-items:center;gap:4px;display:inline-flex}.mock-bar-count{white-space:nowrap}.lock-redo{min-height:44px;color:var(--brand);font:inherit;cursor:pointer;background:0 0;border:0;align-items:center;padding:0;font-size:.9rem;font-weight:700;display:inline-flex}.topic-row-arrow{color:var(--brand);flex:none;margin-left:4px;display:inline-flex}.topic-row-arrow svg{width:16px;height:16px}.free-count{background:var(--warn-soft);border-radius:999px;margin:0 0 8px;padding:2px 10px;font-size:.8125rem;font-weight:700;display:inline-block}@media (max-width:639px){.set-item{flex-direction:column;align-items:stretch}.set-item>div{flex:none}.set-item .btn{width:100%}.study-wrap:has(.mock-bar) .q-tool{padding:6px 10px;font-size:.8125rem}}.mock-nav .btn{white-space:nowrap;padding-left:12px;padding-right:12px;font-size:.9375rem}.next-card{position:relative}.next-head{justify-content:space-between;align-items:center;gap:12px;margin:-10px 0 -2px;display:flex}.next-head .next-label{margin:0 0 8px}.focus-header .wrap{flex-wrap:nowrap;gap:4px;max-width:640px;min-height:52px}.focus-back{min-width:0;min-height:44px;color:var(--text);border-radius:10px;align-items:center;gap:2px;margin-left:-6px;padding:0 8px 0 2px;font-size:.9375rem;font-weight:700;text-decoration:none;display:inline-flex}.focus-back:hover{background:var(--surface-2)}.focus-back svg{color:var(--brand);flex:none}.focus-back-label{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.focus-brand{flex:none;justify-content:center;align-items:center;min-width:44px;min-height:44px;margin-left:auto;display:inline-flex}.focus-header .lang-switch-btn{padding:4px 12px;font-size:.875rem}.focus-main .run-hero{padding:12px 0 8px}.focus-main .run-hero h1{margin:0;font-size:1.125rem;line-height:1.5}.focus-main .run-hero p{margin:2px 0 0}.focus-footer{padding:8px 0 calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--line);color:var(--muted);margin-top:32px;font-size:.75rem}.focus-footer .wrap{flex-wrap:wrap;align-items:center;gap:0 16px;max-width:640px;display:flex}.focus-footer a{min-height:44px;color:var(--muted);align-items:center;display:inline-flex}@media (max-width:639px){.study-wrap .question{padding:14px 14px 16px}.study-wrap .question .q-meta{margin-bottom:4px}.study-wrap .question .q-text{margin-bottom:10px}.study-wrap .question .q-tools{margin:0 0 10px}.study-wrap .question .choices{gap:8px}.study-wrap .question .choice{gap:10px;padding:8px 12px}}body:has(.mock-run) :is(.site-header,.site-footer,.run-hero){display:none}.mock-run .mock-bar{margin:0 0 12px;padding:8px 0}.mock-list-btn{border:1px solid var(--line);background:var(--surface);min-width:0;min-height:44px;color:var(--text);cursor:pointer;border-radius:999px;align-items:center;gap:8px;padding:0 14px 0 12px;font-size:.875rem;font-weight:700;display:inline-flex}.mock-list-btn:hover{border-color:var(--brand)}.mock-list-btn svg{color:var(--brand);flex:none}.mock-list-label{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.mock-list-count{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;flex:none}.mock-run .mock-nav{grid-template-columns:1fr 52px 1fr;gap:8px}.mock-flag{padding:0!important}.mock-flag svg{color:#e08a00}.mock-flag.is-on{background:#fff4dc;border-color:#e08a00}@media (prefers-color-scheme:dark){.mock-flag.is-on{background:#3a2a0c}}.mock-sheet{background:var(--surface);width:100%;max-width:100%;max-height:88dvh;color:var(--text);overscroll-behavior:contain;border:0;border-radius:20px 20px 0 0;margin:auto 0 0;padding:0;overflow:auto;box-shadow:0 -12px 32px #0000002e}.mock-sheet::backdrop{background:#080e1c73}.mock-sheet-body{max-width:640px;padding:12px 16px calc(16px + env(safe-area-inset-bottom));margin:0 auto}.mock-sheet-head{justify-content:space-between;align-items:center;gap:8px;margin-bottom:4px;display:flex}.mock-sheet-head h2{margin:0;font-size:1.05rem}.mock-sheet-close{background:var(--surface-2);width:44px;height:44px;color:var(--text);cursor:pointer;border:0;border-radius:50%;flex:none;place-items:center;display:grid}.mock-sheet-sum{margin:0 0 8px;font-size:.9rem}.mock-sheet .mock-legend{margin:0 0 12px}.mock-sheet .mock-grid{grid-template-columns:repeat(auto-fill,minmax(48px,1fr));margin:0 0 16px}.mock-sheet-actions{gap:8px;display:grid}.mock-sheet-note{margin:10px 0 0}html:has(.mock-sheet[open]){overflow:hidden}@media (min-width:640px){.mock-sheet{width:min(560px,100% - 32px);box-shadow:var(--shadow), 0 16px 40px #00000029;border-radius:16px;margin:auto}.mock-sheet-body{padding:16px 20px 20px}.mock-sheet-actions{grid-template-columns:1fr 1fr}}.run-top{align-items:center;gap:12px;display:flex}.run-top .run-progress{flex:1}.run-top .free-count{flex:none;margin:0}body:has(.answer-bar){padding-bottom:calc(var(--answer-bar-h,76px) + 8px)}@media (max-width:639px){.mock-sheet .mock-grid{grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:6px}.mock-sheet .mock-cell{min-height:44px}}@media (max-width:420px){html:not(:lang(ja)) .mock-run .q-speak{padding:0 12px}html:not(:lang(ja)) .mock-run .q-speak .q-tool-label{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}}.mock-run .mock-nav .btn{white-space:normal;text-align:center;min-width:0;padding-left:8px;padding-right:8px;line-height:1.3}@media (max-width:420px){.mock-run .q-tools{flex-wrap:nowrap}.mock-run .q-tool{min-width:0}.mock-run .q-tool .q-tool-label{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}}@media (hover:none){.q-tool:hover{border-color:var(--line)}.q-tool.is-on:hover{border-color:var(--brand)}}.question .verdict .verdict-feedback{margin:12px 0 0}.mock-run .mock-nav{grid-template-columns:minmax(0,1fr) 64px minmax(0,1fr)}.mock-flag{flex-direction:column;line-height:1.2;gap:0!important}.mock-flag-label{text-overflow:ellipsis;white-space:nowrap;max-width:100%;color:var(--muted);font-size:.6875rem;font-weight:700;display:block;overflow:hidden}.mock-flag.is-on .mock-flag-label{color:#9a5b00}@media (prefers-color-scheme:dark){.mock-flag.is-on .mock-flag-label{color:#f3b14f}}.mock-legend li{gap:8px}.mock-legend .lg.current{margin-right:2px}.mock-sheet .mock-grid{margin:0 -4px 12px;padding:4px}@media (max-width:639px){.mock-sheet-body{padding-top:10px}.mock-sheet .mock-cell{min-height:44px}.mock-sheet .mock-grid{gap:5px}}.focus-main .run-hero p.muted{font-size:.8125rem;line-height:1.6}.focus-main .free-note{padding:8px 12px;font-size:.8125rem;line-height:1.6}.focus-footer a{text-decoration:none}.focus-footer a:hover{text-decoration:underline}.mock-run .question{margin-bottom:12px}@media (max-width:639px){.mock-run{flex-direction:column;min-height:100dvh;display:flex}.mock-run .mock-nav{margin-top:auto}}.q-text{font-size:1.0625rem;font-weight:600;line-height:1.85}.q-of{color:var(--muted);font-weight:400}.choice{align-items:flex-start;padding:11px 14px;font-size:1rem;line-height:1.7}.choice-num{width:26px;height:26px;margin-top:0;font-size:.875rem}.choices-5{gap:8px}@media (max-width:639px){.study-wrap .question .choice{padding:9px 12px}.q-text{font-size:1rem}}.explain p{margin:0;line-height:1.85}.choice-notes{gap:6px;margin:4px 0 0;padding:0;list-style:none;display:grid}.choice-notes li{background:var(--surface);border-radius:10px;grid-template-columns:22px 22px 1fr;align-items:start;gap:6px;padding:8px 10px;font-size:.9375rem;line-height:1.7;display:grid}.choice-notes li.is-answer{box-shadow:inset 0 0 0 1.5px var(--ok)}.cn-num{color:var(--muted);text-align:center;font-weight:700}.cn-mark{text-align:center;font-weight:800}.cn-mark.is-true{color:var(--ok)}.cn-mark.is-false{color:var(--ng)}.src-loc{color:var(--muted)}.sources a{word-break:break-all}.license-switch{background:var(--surface-2);border:1px solid var(--line);border-radius:999px;gap:2px;padding:3px;display:inline-flex}.license-switch button{min-width:88px;min-height:44px;color:var(--muted);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:999px;padding:0 14px;font-size:.9375rem;font-weight:700}.license-switch button[aria-pressed=true]{background:var(--surface);color:var(--brand);box-shadow:0 1px 3px #1018281f}.license-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin:0 0 12px;display:flex}.license-note{color:var(--muted);margin:0;font-size:.8125rem}.subject-head{justify-content:space-between;align-items:baseline;gap:8px;display:flex}.subject-head small{color:var(--muted);font-size:.8125rem;font-weight:400}.mb-answers{grid-template-columns:1fr 1fr;gap:10px;margin-top:4px;display:grid}.mb-btn{border:1.5px solid var(--line);background:var(--surface);min-height:64px;color:var(--text);font:inherit;cursor:pointer;border-radius:14px;justify-content:center;align-items:center;gap:8px;font-size:1.75rem;font-weight:800;display:flex}.mb-btn small{color:var(--muted);font-size:.875rem;font-weight:700}.mb-btn:disabled{cursor:default}.mb-btn.is-correct{border-color:var(--ok);background:var(--ok-soft);color:var(--ok)}.mb-btn.is-wrong{border-color:var(--ng);background:var(--ng-soft);color:var(--ng)}.mb-trap{background:var(--warn-soft);border-radius:999px;margin:0 0 6px;padding:2px 10px;font-size:.8125rem;font-weight:700;display:inline-block}.mb-tip{background:var(--surface);border-radius:10px;margin-top:10px;padding:10px 12px;font-size:.9375rem;line-height:1.7}.mb-tip b{color:var(--brand)}.area-modes{grid-template-columns:1fr 1fr;gap:10px;margin:0 0 16px;display:grid}.area-mode{border:1.5px solid var(--line);background:var(--surface);color:var(--text);border-radius:12px;flex-direction:column;gap:2px;min-height:64px;padding:12px 14px;text-decoration:none;display:flex}.area-mode[aria-current=page]{border-color:var(--brand);box-shadow:inset 0 0 0 1px var(--brand)}.area-mode b{font-size:.9375rem}.area-mode span{color:var(--muted);font-size:.8125rem}.mock-cell-wrap{display:contents}.mock-grid-subject{color:var(--muted);grid-column:1/-1;margin:6px 0 -2px;font-size:.75rem;font-weight:700}.mock-grid-subject:first-child{margin-top:0}.score-big small{color:var(--muted);font-size:1rem;font-weight:600}.subject-rows li{padding-bottom:2px}.bar-line{height:10px;position:relative;overflow:visible}.bar-line>span{border-radius:99px}.bar-line>span.is-ng{background:var(--ng)}.bar-line>i{background:var(--text);opacity:.55;border-radius:1px;width:2px;position:absolute;top:-3px;bottom:-3px}.row-sub{color:var(--muted);margin:4px 0 0;font-size:.8125rem}.cut-badge{vertical-align:1px;margin-left:6px}.result-pass,.result-fail{line-height:1.6}.topic-row-mb{color:var(--muted);margin-left:10px}.notice.is-ng{background:var(--ng-soft)}:is(.q-text,.choice,.explain,.choice-notes,.lp-try-review-explain,.lp-demo-explain){word-break:auto-phrase;text-wrap:pretty;overflow-wrap:anywhere}@media (min-width:640px){.question .q-text{font-size:1.125rem}.question .choice{font-size:1.0625rem}}.subject-rows .row-head b{white-space:nowrap;flex:none}.result-hero .result-pass,.result-hero .result-fail{font-size:1rem}.mb-btn{flex-direction:column;gap:2px;min-height:76px}.mb-btn .mb-sym{font-size:1.75rem;line-height:1}.mb-btn.is-correct,.mb-btn.is-wrong{background:var(--surface);color:var(--text)}.mb-btn.is-correct{border-color:var(--ok);box-shadow:inset 0 0 0 1px var(--ok)}.mb-btn.is-wrong{border-color:var(--ng);box-shadow:inset 0 0 0 1px var(--ng)}.mb-btn .choice-tag{margin-top:4px}.cn-mark{white-space:nowrap;border-radius:999px;align-self:start;margin-top:3px;padding:1px 8px;font-size:.75rem}.cn-mark.is-true{background:var(--ok-soft)}.cn-mark.is-false{background:var(--ng-soft)}.cn-answer{color:var(--ok);font-size:.75rem;display:block}:is(.paywall,.pricing-compare,.pricing-info,.g-lead,.houjin,.study-hero p,.free-note,.exam-strip,.license-note,.about,.lp-feature-body,.g-section>p,.g-section li,.g-answer-body){word-break:auto-phrase;text-wrap:pretty}.paywall-anchor{text-wrap:pretty}.choice-notes li{grid-template-columns:18px 3.75em 1fr;gap:8px}.cn-mark{text-align:center}.stack>.mock-rules{margin-bottom:8px}.choice-notes li{grid-template-columns:18px 1fr}.cn-head{align-items:center;gap:8px;margin-bottom:2px;display:flex}.cn-mark{margin-top:0}.cn-answer{display:inline}.cut-badge{margin:0 6px 0 0}.site-footer nav a{white-space:nowrap}.study-wrap:has([data-testid=mock-result]) .run-hero p{display:none}.mock-sheet-body{padding-bottom:calc(24px + env(safe-area-inset-bottom))}.lock-saved.is-neutral{background:var(--surface-2)}.lock-saved.is-neutral svg{color:var(--muted)}.corp-mini{border:1px solid var(--line);color:inherit;border-radius:12px;flex-direction:column;gap:2px;margin-top:8px;padding:12px 14px;text-decoration:none;display:flex}.corp-mini b{font-size:.9375rem}.corp-mini span{color:var(--muted);font-size:.8125rem;line-height:1.5}.corp-mini:hover{border-color:var(--brand)}.license-pick h2{margin:0 0 4px;font-size:1.25rem}.license-pick-list{gap:12px;margin:16px 0;display:grid}.license-pick-item{text-align:left;border:1.5px solid var(--line);background:var(--card,#fff);color:inherit;font:inherit;cursor:pointer;border-radius:14px;flex-direction:column;gap:4px;padding:16px;display:flex}.license-pick-item:hover,.license-pick-item:focus-visible{border-color:var(--brand)}.license-pick-item b{font-size:1.0625rem}.license-pick-size{color:var(--brand);font-size:.9375rem;font-weight:700}.license-pick-who{color:var(--muted);font-size:.875rem;line-height:1.6}@media (min-width:640px){.license-pick-list{grid-template-columns:1fr 1fr}}.mock-to-drill{color:inherit;justify-content:space-between;align-items:center;gap:12px;text-decoration:none;display:flex}.mock-to-drill>span{flex-direction:column;gap:4px;display:flex}.mock-to-drill:hover{border-color:var(--brand)}.answer-review-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;display:flex}.answer-rows{margin:0;padding:0;list-style:none}.answer-rows li{border-top:1px solid var(--line)}.answer-rows summary{cursor:pointer;align-items:center;gap:8px;min-height:48px;padding:8px 0;list-style:none;display:flex}.answer-rows summary::-webkit-details-marker{display:none}.answer-rows summary:after{content:"";border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);flex:none;width:8px;height:8px;margin-left:auto;transition:transform .15s;transform:rotate(45deg)}.answer-rows details[open] summary:after{transform:rotate(-135deg)}.answer-row-no{flex:none;font-size:.875rem;font-weight:700}.answer-row-stem{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--muted);font-size:.875rem;overflow:hidden}.answer-rows details[open]{padding-bottom:12px}.topic-row-icon,.area-title-icon{background:var(--brand-soft);width:32px;height:32px;color:var(--brand);border-radius:10px;flex:none;place-items:center;display:inline-grid}.area-title{align-items:center;gap:10px;display:flex}.area-title-icon{border-radius:12px;width:40px;height:40px}.mascot{-webkit-user-select:none;user-select:none;pointer-events:none;display:block}.mascot-flip{transform:scaleX(-1)}.mascot-on-dark{filter:drop-shadow(0 0 1px #fff)drop-shadow(0 0 1px #fff)drop-shadow(0 6px 12px #0000004d)}.paywall-mascot{flex:none;margin-top:-4px}.result-mascot{margin:-4px auto 4px}.empty-mascot{margin:0 auto 8px}.next-head{justify-content:space-between;align-items:flex-end;gap:8px;margin-top:-24px;display:flex}.next-head .next-label{margin-bottom:8px}.next-mascot{flex:none}.license-pick-head{align-items:center;gap:12px;display:flex}.license-pick-head .mascot{flex:none}.next-area-btn{text-align:left;justify-content:space-between;gap:12px}.next-area-btn>span{flex-direction:column;gap:2px;display:flex}.next-area-btn small{opacity:.85;font-size:.8125rem;font-weight:500}:is(.explain,.choice-notes,.lp-try-review-explain){word-break:normal}.license-pick-spec{border-top:1px solid var(--line);color:var(--text,inherit);margin-top:4px;padding-top:8px;font-size:.8125rem;line-height:1.6}.license-pick-rule{margin:0 0 8px}.topic-row-foot{flex-wrap:wrap;align-items:center;gap:4px 10px;display:flex}@media (max-width:640px){.focus-main .run-hero{padding:4px 0 6px}.focus-main .run-hero>.small:first-child{display:none}.focus-main .run-hero h1.area-title{gap:8px;font-size:1rem}.focus-main .run-hero .area-title-icon{border-radius:8px;width:28px;height:28px}.focus-main .run-hero .area-title-icon svg{width:16px;height:16px}.study-wrap .question{padding:10px 12px 12px}.study-wrap .question .q-meta{margin-bottom:4px}.study-wrap .question .q-text{word-break:normal;margin-bottom:8px;font-size:1rem;line-height:1.6}.study-wrap .question .choices{gap:6px}.study-wrap .question .choice{word-break:normal;gap:8px;padding:7px 10px;font-size:.9375rem;line-height:1.5}.study-wrap .question .choice-num{width:22px;height:22px;font-size:.75rem}.study-wrap .question:not(.lp-try-card *){box-shadow:none;background:0 0;border:0;padding:4px 0 0}.study-wrap .question .q-meta{margin-bottom:2px;font-size:.75rem}.study-wrap .question .q-meta .badge{display:none}.focus-main .run-top{margin-bottom:2px}}
