@scope (.quiz-root[data-exam-id^="ds-practice-"]){:scope{--bg:#f4f6f7;--bg-warm:#fafaf8;--card:#ffffff;--text:#293338;--text-secondary:#4c595f;--text-muted:#626e73;--accent:#3f6373;--border:#e2e7e9;--border-visible:#c6cfd2;--shadow-sm:0 1px 2px rgba(41,51,56,0.05),0 4px 12px rgba(41,51,56,0.07),inset 0 1px 0 rgba(255,255,255,0.5);--shadow:0 2px 4px rgba(41,51,56,0.06),0 8px 24px rgba(41,51,56,0.1),inset 0 1px 0 rgba(255,255,255,0.6);--shadow-lg:0 4px 8px rgba(41,51,56,0.06),0 16px 48px rgba(41,51,56,0.13),inset 0 2px 0 rgba(255,255,255,0.7);--radius:20px;--radius-sm:12px;--fs-qtext:clamp(17px,1.3vw,19px);--fs-base:clamp(15px,1.1vw,17px);--cat-basic:#406b7c;--cat-basic-light:#e4edf0;--cat-comm:#4f7a5c;--cat-comm-light:#e7f0e8;--cat-advanced:#4c6190;--cat-advanced-light:#e7ebf4;--c-primary:#406b7c;--c-primary-light:#e4edf0;--c-aux:#3e7c86;--c-aux-light:#e1eff0;--c-answer:#4c6190;--c-answer-light:#e7ebf4;--c-mark:#4f7a5c;--c-mark-light:#e7f0e8;--prog-start:#3f6373;--prog-end:#3e7c86}.qnum{display:inline-block;font-weight:700;font-size:12px;color:var(--c-primary);background:var(--c-primary-light);padding:4px 12px;border-radius:100px;margin-bottom:12px;border:1px solid rgba(64,107,124,.22)}.toggle-btn.vocab{background:var(--c-primary);color:#fff}.toggle-btn.hint{background:var(--c-aux);color:#fff}.toggle-btn.answer{background:var(--c-answer);color:#fff}.toggle-btn.vocab:hover{background:#355c6b}.toggle-btn.hint:hover{background:#356b74}.toggle-btn.answer:hover{background:#41547e}.vocab-box{border-left:3px solid var(--c-primary)}.hint-box,.vocab-box{background:var(--card)}.hint-box{border-left:3px solid var(--c-aux)}.hint-item{padding:8px 0;border-bottom:1px solid rgba(62,124,134,.16)}.ans-box{background:var(--card)}.ans-box,.choices{border-left:3px solid var(--c-answer)}.choices{background:var(--c-answer-light)}.scramble{background:var(--c-aux-light);border-left:3px solid var(--c-aux);font-family:JetBrains Mono,SF Mono,Monaco,monospace}.choice-exp{padding:8px 0;font-size:16px;line-height:1.6;border-bottom:1px solid rgba(113,126,132,.14)}.choice-exp.correct{color:var(--c-mark);font-weight:600}.vocab-word{font-weight:700;color:var(--c-primary);margin-right:8px}.jp-text{color:var(--text-secondary);margin-top:12px;padding-bottom:12px;font-size:16px;border-bottom:1px solid rgba(113,126,132,.16)}.grammar-ref{background:var(--c-mark-light);border-left:3px solid var(--c-mark);padding:12px 14px;border-radius:var(--radius-sm);font-size:15px;margin-top:12px}.sub-nav-cat[data-cat=basic]{color:var(--cat-basic)}.sub-nav-cat[data-cat=basic].active{background:var(--cat-basic);color:#fff}.sub-nav-cat[data-cat=comm]{color:var(--cat-comm)}.sub-nav-cat[data-cat=comm].active{background:var(--cat-comm);color:#fff}.sub-nav-cat[data-cat=advanced]{color:var(--cat-advanced)}.sub-nav-cat[data-cat=advanced].active{background:var(--cat-advanced);color:#fff}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--prog-start),var(--prog-end));border-radius:100px;width:0}.home-hero-title em,.home-title em{font-style:normal;color:var(--accent)}.iq-choice{border:1px solid var(--border-visible)}.iq-choice.selected,.iq-choice:hover{border-color:var(--c-answer);background:var(--c-answer-light)}.iq-choice.selected{color:var(--c-answer);font-weight:600}.iq-choice-letter{color:var(--c-answer);font-weight:700}.iq-chip{border:1px solid var(--border-visible)}.iq-chip.placed,.iq-chip:hover{border-color:var(--c-aux);background:var(--c-aux-light);color:var(--c-aux)}.iq-answer-zone{border:2px dashed var(--border-visible)}.iq-answer-zone.has-items{border-color:var(--c-aux)}.iq-fillin,input.iq-fillin,input.iq-input{border-bottom:2px solid var(--border-visible)}.iq-fillin:focus,input.iq-fillin:focus,input.iq-input:focus{border-bottom-color:var(--c-primary);outline:none}.iq-compose-textarea,textarea.iq-compose{border:1px solid var(--border-visible)}.iq-compose-textarea:focus,textarea.iq-compose:focus{border-color:var(--c-mark);outline:none}}html.dark .quiz-root[data-exam-id^=ds-practice-],html[data-theme=dark] .quiz-root[data-exam-id^=ds-practice-]{--bg:#161b1e;--bg-warm:#1b1f1f;--card:#222a2e;--text:#e8edef;--text-secondary:#afbabf;--text-muted:#7e8a8f;--accent:#86aab8;--border:#323c40;--border-visible:#465257;--cat-basic:#83abba;--cat-basic-light:#23333a;--cat-comm:#84b891;--cat-comm-light:#233329;--cat-advanced:#93a8d2;--cat-advanced-light:#272f40;--c-primary:#83abba;--c-primary-light:#23333a;--c-aux:#73b6be;--c-aux-light:#1f3739;--c-answer:#93a8d2;--c-answer-light:#272f40;--c-mark:#84b891;--c-mark-light:#233329;--prog-start:#86aab8;--prog-end:#73b6be}html.dark .quiz-root[data-exam-id^=ds-practice-] .toggle-btn.vocab:hover,html[data-theme=dark] .quiz-root[data-exam-id^=ds-practice-] .toggle-btn.vocab:hover{background:#97bac8}html.dark .quiz-root[data-exam-id^=ds-practice-] .toggle-btn.hint:hover,html[data-theme=dark] .quiz-root[data-exam-id^=ds-practice-] .toggle-btn.hint:hover{background:#86c4cc}html.dark .quiz-root[data-exam-id^=ds-practice-] .toggle-btn.answer:hover,html[data-theme=dark] .quiz-root[data-exam-id^=ds-practice-] .toggle-btn.answer:hover{background:#a6b8de}