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5);box-shadow:var(--shadow-book);display:grid}.mock-test-mode-panel h2{margin-top:calc(var(--spacing) * 1);margin-bottom:calc(var(--spacing) * 2);font-size:26px}.mock-test-mode-panel p{margin:calc(var(--spacing) * 0);--tw-leading:var(--leading-relaxed);line-height:var(--leading-relaxed);color:var(--color-muted)}.mock-test-mode-label{border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-brand-soft);padding-inline:calc(var(--spacing) * 3);padding-block:calc(var(--spacing) * 1);font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height));--tw-font-weight:var(--font-weight-extrabold);font-weight:var(--font-weight-extrabold);color:var(--color-brand);border-radius:3.40282e38px;display:inline-flex}.mock-test-mode-card{gap:calc(var(--spacing) * 3);border-radius:var(--radius-lg);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-panel);padding:calc(var(--spacing) * 4);display:grid}.mock-test-timer{--tw-leading:1;--tw-font-weight:var(--font-weight-extrabold);font-size:42px;line-height:1;font-weight:var(--font-weight-extrabold);color:var(--color-brand)}.mock-test-progress{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height));--tw-font-weight:var(--font-weight-extrabold);font-weight:var(--font-weight-extrabold);color:var(--color-muted)}.mock-test-mode-actions{gap:calc(var(--spacing) * 2);flex-wrap:wrap;display:flex}.mock-test-mode-actions button{min-height:calc(var(--spacing) * 11);cursor:pointer;border-radius:var(--radius-lg);padding-inline:calc(var(--spacing) * 4);padding-block:calc(var(--spacing) * 2.5);font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height));--tw-font-weight:var(--font-weight-extrabold);font-weight:var(--font-weight-extrabold);justify-content:center;align-items:center;font-family:inherit;transition:border-color .15s,background-color .15s,color .15s,opacity .15s;display:inline-flex}.mock-test-start,.mock-test-submit{background-color:var(--color-brand);color:var(--color-white)}.mock-test-reset{border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-panel-strong);color:var(--color-muted)}.mock-test-mode-actions button:disabled{cursor:not-allowed;opacity:.55}.mock-test-mode-note{border-radius:var(--radius-lg);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-brand-soft);padding-inline:calc(var(--spacing) * 3);padding-block:calc(var(--spacing) * 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.quiz-actions{display:none!important}.mock-test-active .quiz-mode-head span:not(.quiz-score){display:none}.mock-test-active .quiz-score{color:var(--color-muted)}.mock-test-finished .answer-box{display:block}.vocab-table-wrap{margin-block:calc(var(--spacing) * 5);border-radius:var(--radius-lg);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);overflow-x:auto}.vocab-table{border-collapse:collapse;width:100%;font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.vocab-table th,.vocab-table td{border-bottom-style:var(--tw-border-style);border-bottom-width:1px;border-color:var(--color-line);padding-inline:calc(var(--spacing) * 3);padding-block:calc(var(--spacing) * 3);text-align:left;vertical-align:top}.vocab-table th{background-color:var(--color-brand-soft);--tw-font-weight:var(--font-weight-extrabold);font-weight:var(--font-weight-extrabold);color:var(--color-ink)}.vocab-table tr:last-child td{border-bottom-style:var(--tw-border-style);border-bottom-width:0}.vocab-table td:first-child{color:var(--color-brand)}.code-block-wrapper{position:relative}.copy-btn{top:calc(var(--spacing) * 2.5);right:calc(var(--spacing) * 2.5);z-index:2;cursor:pointer;align-items:center;gap:calc(var(--spacing) * 1.5);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-panel);padding-inline:calc(var(--spacing) * 2.5);padding-block:calc(var(--spacing) * 1);font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height));--tw-font-weight:var(--font-weight-bold);font-weight:var(--font-weight-bold);color:var(--color-muted);opacity:0;border-radius:.25rem;font-family:inherit;transition:opacity .15s,color .15s,background .15s,border-color .15s;display:flex;position:absolute}.article-content pre:hover .copy-btn,.copy-btn:focus{opacity:1}.copy-btn.copied{opacity:1;color:var(--color-green);border-color:var(--color-green);background:var(--color-green-soft)}.sidebar-search{margin-top:calc(var(--spacing) * 3.5);margin-bottom:calc(var(--spacing) * 1.5)}.search-input-wrap{align-items:center;gap:calc(var(--spacing) * 2);border-radius:var(--radius-lg);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-panel-strong);padding-inline:calc(var(--spacing) * 3);padding-block:calc(var(--spacing) * 2);transition:border-color .15s,box-shadow .15s;display:flex}.search-input-wrap:focus-within{border-color:var(--color-brand);box-shadow:0 0 0 3px var(--color-brand-soft)}.search-input-wrap svg{color:var(--color-muted);flex-shrink:0}.search-input-wrap input{min-width:calc(var(--spacing) * 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1.5);font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height));--tw-font-weight:var(--font-weight-extrabold);font-weight:var(--font-weight-extrabold);color:var(--color-muted);display:grid}.chapter-filter-search input,.chapter-filter-select select{min-height:calc(var(--spacing) * 11);border-radius:var(--radius-lg);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-panel);width:100%;padding-inline:calc(var(--spacing) * 3);font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height));color:var(--color-ink);--tw-outline-style:none;outline-style:none;font-family:inherit;transition:border-color .15s,box-shadow .15s}.chapter-filter-search input:focus,.chapter-filter-select select:focus{border-color:var(--color-brand);box-shadow:0 0 0 3px var(--color-brand-soft)}.chapter-filter-search input::placeholder{color:var(--color-muted)}.chapter-filter-count{min-height:calc(var(--spacing) * 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* 0);border-top-width:0}.chapter-group-head{margin-bottom:calc(var(--spacing) * 4);max-width:720px}.sidebar-chapter-group{margin-bottom:calc(var(--spacing) * 4)}.sidebar-chapter-group:last-child{margin-bottom:calc(var(--spacing) * 0)}.sidebar-group-label{margin-inline:calc(var(--spacing) * 2.5);margin-bottom:calc(var(--spacing) * 2);--tw-font-weight:var(--font-weight-extrabold);font-size:11px;font-weight:var(--font-weight-extrabold);--tw-tracking:var(--tracking-wide);letter-spacing:var(--tracking-wide);color:var(--color-muted);text-transform:uppercase}.sidebar-group-links{gap:calc(var(--spacing) * 1);display:grid}.progress-panel,.progress-score-card,.progress-recommendation-card{border-radius:var(--radius-lg);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-panel-strong);padding:calc(var(--spacing) * 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div{border-radius:var(--radius-lg);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-panel);padding-inline:calc(var(--spacing) * 3);padding-block:calc(var(--spacing) * 2)}.progress-stat-grid span{font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height));--tw-font-weight:var(--font-weight-extrabold);font-weight:var(--font-weight-extrabold);display:block}.progress-stat-grid small{font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height));--tw-leading:var(--leading-tight);line-height:var(--leading-tight);color:var(--color-muted);display:block}.progress-actions{margin-top:calc(var(--spacing) * 6);gap:calc(var(--spacing) * 3);flex-wrap:wrap;display:flex}.progress-primary-link,.progress-secondary-link{border-radius:var(--radius-lg);padding-inline:calc(var(--spacing) * 4);padding-block:calc(var(--spacing) * 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minmax(260px,.85fr);display:grid}.progress-section-head{grid-column:1/-1}.progress-score-card h3{margin-top:calc(var(--spacing) * 0);margin-bottom:calc(var(--spacing) * 4);font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height));--tw-font-weight:var(--font-weight-bold);font-weight:var(--font-weight-bold)}.progress-input-label,.progress-input-grid label{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height));--tw-font-weight:var(--font-weight-bold);font-weight:var(--font-weight-bold);color:var(--color-muted)}.progress-input-label{align-items:center;gap:calc(var(--spacing) * 3);border-radius:var(--radius-lg);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-panel);padding-inline:calc(var(--spacing) * 3);padding-block:calc(var(--spacing) * 3);display:flex}.progress-input-label span,.progress-input-grid span{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height));color:var(--color-muted)}.progress-score-input,.progress-input-grid input{border-radius:var(--radius-lg);border-style:var(--tw-border-style);border-width:1px;border-color:var(--color-line);background-color:var(--color-panel-strong);padding-inline:calc(var(--spacing) * 3);padding-block:calc(var(--spacing) * 2);font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height));--tw-font-weight:var(--font-weight-extrabold);font-weight:var(--font-weight-extrabold);color:var(--color-ink);--tw-outline-style:none;outline-style:none;font-family:inherit}.progress-score-input{width:90px;margin-left:auto}.progress-score-input:focus,.progress-input-grid input:focus{border-color:var(--color-brand);box-shadow:0 0 0 3px var(--color-brand-soft)}.progress-input-grid{margin-top:calc(var(--spacing) * 3);gap:calc(var(--spacing) * 2.5);display:grid}.progress-input-grid 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