@import "https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,700&family=Source+Sans+3:wght@400;500;600;700&display=swap";._header_yxz4z_1{padding:16px var(--gutter);border-bottom:1px solid var(--color-border);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:10;background:#0f1419d9;justify-content:space-between;align-items:center;gap:16px;display:flex;position:sticky;top:0}._brand_yxz4z_15{font-family:var(--font-display);color:var(--color-text);letter-spacing:-.02em;font-size:1.35rem;font-weight:700}._brand_yxz4z_15:hover{color:var(--color-accent-hover)}._nav_yxz4z_27{flex-wrap:wrap;align-items:center;gap:8px 18px;display:flex}._nav_yxz4z_27 a,._accountBtn_yxz4z_35{color:var(--color-text-muted);background:0 0;border:none;padding:0;font-weight:500}._nav_yxz4z_27 a:hover,._accountBtn_yxz4z_35:hover{color:var(--color-text)}._nav_yxz4z_27 a._active_yxz4z_48{color:var(--color-accent)}@media (width<=560px){._header_yxz4z_1{flex-direction:column;align-items:flex-start}}._stats_1xcrf_1{flex-wrap:wrap;gap:8px 24px;margin:20px 0 32px;display:flex}._modes_1xcrf_8{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;display:grid}._mode_1xcrf_8{background:var(--color-surface);border:1px solid var(--color-border);border-left:3px solid var(--color-accent);border-radius:var(--radius-md);color:inherit;padding:22px;transition:border-color .15s,transform .15s;display:block}._mode_1xcrf_8:hover{border-color:var(--color-accent);color:inherit;transform:translateY(-1px)}._mode_1xcrf_8 h2{margin-bottom:.35em;font-size:1.35rem}._jump_1xcrf_36{margin-top:28px}._reset_1xcrf_40{margin-top:36px}._reset_1xcrf_40 button{color:var(--color-text-muted);background:0 0;border:none;padding:0;font-weight:500;text-decoration:underline}._reset_1xcrf_40 button:hover{color:var(--color-incorrect)}._hero_au1q9_1{min-height:calc(100vh - 73px);padding:48px var(--gutter) 72px;align-items:center;width:min(1100px,100%);margin:0 auto;display:flex}._copy_au1q9_10{max-width:34rem}._brand_au1q9_14{font-family:var(--font-display);letter-spacing:-.03em;color:var(--color-text);margin:0 0 20px;font-size:clamp(2.8rem,8vw,4.6rem);font-weight:700;line-height:1.05}._headline_au1q9_24{font-family:var(--font-body);color:var(--color-text);margin:0 0 12px;font-size:clamp(1.25rem,2.4vw,1.55rem);font-weight:500;line-height:1.35}._support_au1q9_33{color:var(--color-text-muted);max-width:32ch;margin:0 0 28px;font-size:1.08rem}._ctas_au1q9_40{flex-wrap:wrap;gap:12px;display:flex}._primary_au1q9_46,._secondary_au1q9_47{border-radius:var(--radius-sm);justify-content:center;align-items:center;padding:12px 18px;font-weight:600;display:inline-flex}._primary_au1q9_46{background:var(--color-accent);color:#0b1218}._primary_au1q9_46:hover{background:var(--color-accent-hover);color:#0b1218}._secondary_au1q9_47{border:1px solid var(--color-border);color:var(--color-text)}._secondary_au1q9_47:hover{border-color:var(--color-accent);color:var(--color-accent)}._stack_1my4x_1{flex-direction:column;gap:16px;margin:0 0 1.1em;display:flex}._figure_1my4x_8{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-sm);margin:0;padding:12px}._svg_1my4x_16{width:100%;max-width:520px;height:auto;display:block}._axis_1my4x_23{stroke:var(--color-text-muted);stroke-width:2px;fill:none}._arrow_1my4x_29{fill:var(--color-text-muted)}._tick_1my4x_33{stroke:var(--color-text-muted);stroke-width:2px}._grid_1my4x_38{stroke:var(--color-border);stroke-width:1px}._dot_1my4x_43{fill:var(--color-accent)}._line_1my4x_47{fill:none;stroke:var(--color-accent);stroke-width:2.5px}._label_1my4x_53,._smallLabel_1my4x_54,._axisLabel_1my4x_55,._pointLabel_1my4x_56{fill:var(--color-text-muted);font-family:var(--font-body);font-size:12px}._axisLabel_1my4x_55,._pointLabel_1my4x_56{fill:var(--color-text);font-size:13px;font-weight:600}._caption_1my4x_69{color:var(--color-text-muted);margin:8px 0 0;font-size:.92rem}._shapeFill_1my4x_75{fill:var(--color-accent-dim)}._shapeStroke_1my4x_79{fill:none;stroke:var(--color-accent);stroke-width:2.5px}._shapeStrokeFill_1my4x_85{fill:var(--color-accent-dim);stroke:var(--color-accent);stroke-width:2px}._arc_1my4x_91{fill:none;stroke:var(--color-incorrect);stroke-width:2px}._areaFill_1my4x_97{fill:var(--color-accent-dim);stroke:none}._guide_1my4x_102{stroke:var(--color-text-muted);stroke-width:1.5px;stroke-dasharray:4 3;fill:none}._session_1e12l_1 h1{margin-bottom:.25em}._crumb_1e12l_5{margin-bottom:.35em;font-size:.95rem}._phases_1e12l_10{flex-wrap:wrap;gap:8px;margin:24px 0 16px;display:flex}._phase_1e12l_10,._phaseActive_1e12l_18{border:1px solid var(--color-border);color:var(--color-text-muted);border-radius:var(--radius-sm);text-transform:capitalize;background:0 0;padding:8px 14px}._phaseActive_1e12l_18{background:var(--color-accent-dim);border-color:var(--color-accent);color:var(--color-accent)}._panel_1e12l_33{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);max-width:var(--max-read);padding:24px}._callout_1e12l_41,._keyIdeas_1e12l_42,._mistakes_1e12l_43{border-left:3px solid var(--color-accent);background:var(--color-accent-dim);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:0 0 1.1em;padding:12px 14px}._mistakes_1e12l_43{border-left-color:var(--color-incorrect);background:#e07a5f1a}._calloutLabel_1e12l_56{letter-spacing:.04em;text-transform:uppercase;color:var(--color-accent);margin:0 0 .35em;font-size:.8rem;font-weight:700}._mistakes_1e12l_43 ._calloutLabel_1e12l_56{color:var(--color-incorrect)}._callout_1e12l_41 p:last-child,._keyIdeas_1e12l_42 ul,._mistakes_1e12l_43 ul{margin-bottom:0}._keyIdeas_1e12l_42 ul,._mistakes_1e12l_43 ul{margin-top:.35em;padding-left:1.15rem}._keyIdeas_1e12l_42 li,._mistakes_1e12l_43 li{margin-bottom:.45rem}._prereq_1e12l_86{margin-bottom:1em;font-size:.95rem}._takeaway_1e12l_91{border-top:1px solid var(--color-border);color:var(--color-text-muted);margin-top:.75em;padding-top:.75em}._steps_1e12l_98{padding-left:1.25rem}._steps_1e12l_98 li{margin-bottom:.5rem}._row_1e12l_106{flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;display:flex}._primary_1e12l_114,._secondary_1e12l_115,._primaryLink_1e12l_116,._secondaryLink_1e12l_117{border-radius:var(--radius-sm);border:1px solid #0000;justify-content:center;align-items:center;padding:10px 16px;font-weight:600;display:inline-flex}._primary_1e12l_114,._primaryLink_1e12l_116{background:var(--color-accent);color:#0b1218}._primary_1e12l_114:hover,._primaryLink_1e12l_116:hover{background:var(--color-accent-hover);color:#0b1218}._secondary_1e12l_115,._secondaryLink_1e12l_117{border-color:var(--color-border);color:var(--color-text);background:0 0}._secondary_1e12l_115:hover:not(:disabled),._secondaryLink_1e12l_117:hover{border-color:var(--color-accent);color:var(--color-accent)}._secondary_1e12l_115:disabled{opacity:.45;cursor:not-allowed}._progressMeta_1e12l_157{color:var(--color-text-muted);justify-content:space-between;gap:12px;margin-bottom:8px;font-size:.95rem;display:flex}._progressTrack_1e12l_166{background:var(--color-bg-elevated);border-radius:var(--radius-sm);height:6px;margin-bottom:20px;overflow:hidden}._progressFill_1e12l_174{background:var(--color-accent);height:100%;transition:width .25s}._prompt_1e12l_180{margin-bottom:16px;font-size:1.15rem}._form_1e12l_185{flex-direction:column;gap:12px;display:flex}._input_1e12l_191{border-radius:var(--radius-sm);border:1px solid var(--color-border);background:var(--color-bg-elevated);width:100%;max-width:320px;color:var(--color-text);padding:10px 12px}._hints_1e12l_201{color:var(--color-text-muted);margin:12px 0 0}._ok_1e12l_206{color:var(--color-correct);margin-top:12px;font-weight:600}._bad_1e12l_212{color:var(--color-incorrect);margin-top:12px;font-weight:600}._practiceLayout_1e12l_218{max-width:calc(var(--max-read) + 280px);align-items:start;gap:16px;display:grid}@media (width>=960px){._practiceLayout_1e12l_218{grid-template-columns:minmax(0, var(--max-read)) minmax(220px, 280px)}}._reference_1e12l_231{flex-direction:column;gap:12px;display:flex}._refCard_1e12l_237{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:12px 14px}._refCard_1e12l_237 ul{margin:8px 0 0;padding-left:1.15rem}._refCard_1e12l_237 li{margin-bottom:.4rem;font-size:.95rem}._refToggle_1e12l_254{text-align:left;width:100%;color:var(--color-accent);letter-spacing:.04em;text-transform:uppercase;background:0 0;border:none;padding:0;font-size:.8rem;font-weight:700}._examplePeek_1e12l_267{margin-top:10px;font-size:.95rem}._peekTitle_1e12l_272{margin-bottom:.4em;font-weight:700}._reveal_1e12l_277{border-left:3px solid var(--color-incorrect);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:#e07a5f1a;margin-top:14px;padding:12px 14px}._reveal_1e12l_277 p{margin-bottom:.55em}._reveal_1e12l_277 p:last-child{margin-bottom:0}._why_1e12l_293{color:var(--color-text-muted)}._form_vk4vj_1{flex-direction:column;gap:14px;max-width:360px;margin:24px 0 16px;display:flex}._form_vk4vj_1 label{flex-direction:column;gap:6px;font-weight:600;display:flex}._form_vk4vj_1 input{border-radius:var(--radius-sm);border:1px solid var(--color-border);background:var(--color-bg-elevated);color:var(--color-text);padding:10px 12px;font-weight:400}._primary_vk4vj_25{border-radius:var(--radius-sm);background:var(--color-accent);color:#0b1218;border:none;align-self:flex-start;padding:10px 16px;font-weight:600}._primary_vk4vj_25:disabled{opacity:.5;cursor:not-allowed}._primary_vk4vj_25:hover:not(:disabled){background:var(--color-accent-hover)}._error_vk4vj_44{color:var(--color-incorrect);margin:0}._message_vk4vj_49{color:var(--color-correct);margin:0}._notice_vk4vj_54{background:var(--color-accent-dim);border-radius:var(--radius-sm);border:1px solid var(--color-border);padding:12px 14px}._switch_vk4vj_61 button{color:var(--color-accent);background:0 0;border:none;padding:0;font-weight:600}._switch_vk4vj_61 button:hover{color:var(--color-accent-hover)}._nextCard_1jqud_1{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);max-width:28rem;margin:24px 0 36px;padding:22px}._label_1jqud_10{color:var(--color-accent);margin-bottom:4px;font-weight:600}._primary_1jqud_16{border-radius:var(--radius-sm);background:var(--color-accent);color:#0b1218;margin-top:14px;padding:10px 16px;font-weight:600;display:inline-flex}._primary_1jqud_16:hover{background:var(--color-accent-hover);color:#0b1218}._done_1jqud_31{color:var(--color-correct);font-weight:600}._list_1jqud_36{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}._item_1jqud_45{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:16px;padding:14px 0;display:flex}._badge_1jqud_54,._doneBadge_1jqud_55{color:var(--color-text-muted);flex-shrink:0;font-size:.85rem;font-weight:600}._doneBadge_1jqud_55{color:var(--color-correct)}@media (width<=560px){._item_1jqud_45{flex-direction:column;align-items:flex-start}}._panel_nzvm9_1{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);max-width:var(--max-read);padding:24px}._meta_nzvm9_9,._label_nzvm9_10{color:var(--color-text-muted);letter-spacing:.04em;text-transform:uppercase;margin-bottom:.75em;font-size:.9rem;font-weight:700}._prompt_nzvm9_19{margin-bottom:16px;font-size:1.15rem}._form_nzvm9_24{flex-direction:column;gap:12px;display:flex}._input_nzvm9_30{border-radius:var(--radius-sm);border:1px solid var(--color-border);background:var(--color-bg-elevated);width:100%;max-width:320px;color:var(--color-text);padding:10px 12px}._row_nzvm9_40{flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;display:flex}._primary_nzvm9_48,._secondary_nzvm9_49,._primaryLink_nzvm9_50,._secondaryLink_nzvm9_51{border-radius:var(--radius-sm);border:1px solid #0000;justify-content:center;align-items:center;padding:10px 16px;font-weight:600;display:inline-flex}._primary_nzvm9_48,._primaryLink_nzvm9_50{background:var(--color-accent);color:#0b1218}._primary_nzvm9_48:hover,._primaryLink_nzvm9_50:hover{background:var(--color-accent-hover);color:#0b1218}._secondary_nzvm9_49,._secondaryLink_nzvm9_51{border-color:var(--color-border);color:var(--color-text);background:0 0}._secondary_nzvm9_49:hover,._secondaryLink_nzvm9_51:hover{border-color:var(--color-accent);color:var(--color-accent)}._ok_nzvm9_86{color:var(--color-correct);margin-top:12px;font-weight:600}._page_1ejc9_1 h1{margin-bottom:.25em}._overview_1ejc9_9{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:28px 0 16px;display:grid}._stat_1ejc9_23{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:16px 18px}._statValue_1ejc9_37{font-family:var(--font-display);margin:0;font-size:1.85rem;font-weight:700;line-height:1.1}._statLabel_1ejc9_53{color:var(--color-text-muted);margin:.35em 0 0;font-size:.92rem}._overallTrack_1ejc9_65{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-sm);max-width:42rem;height:8px;overflow:hidden}._overallFill_1ejc9_83{background:var(--color-accent);height:100%;transition:width .3s}._overallMeta_1ejc9_95{margin-top:8px;margin-bottom:0}._section_1ejc9_105{max-width:52rem;margin-top:40px}._section_1ejc9_105 h2{margin-bottom:.25em}._standGrid_1ejc9_123{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:14px;display:grid}._panel_1ejc9_137{background:var(--color-surface);border:1px solid var(--color-border);border-left:3px solid var(--color-accent);border-radius:var(--radius-md);padding:18px}._panelLabel_1ejc9_153{letter-spacing:.04em;text-transform:uppercase;color:var(--color-accent);margin:0 0 .45em;font-size:.78rem;font-weight:700}._panelTitle_1ejc9_171{font-family:var(--font-display);margin:0 0 .4em;font-size:1.25rem;font-weight:700}._primaryLink_1ejc9_185,._textLink_1ejc9_187{margin-top:10px;font-weight:600;display:inline-flex}._primaryLink_1ejc9_185{border-radius:var(--radius-sm);background:var(--color-accent);color:#0b1218;padding:10px 16px}._primaryLink_1ejc9_185:hover{background:var(--color-accent-hover);color:#0b1218}._trackList_1ejc9_223,._topicList_1ejc9_225,._recentList_1ejc9_227,._attemptList_1ejc9_229{flex-direction:column;gap:12px;margin:14px 0 0;padding:0;list-style:none;display:flex}._trackRow_1ejc9_247{border-bottom:1px solid var(--color-border);padding:12px 0}._trackHead_1ejc9_257{justify-content:space-between;gap:12px;margin-bottom:8px;font-weight:600;display:flex}._trackMeta_1ejc9_273{color:var(--color-text-muted);font-size:.95rem;font-weight:500}._barTrack_1ejc9_285{background:var(--color-bg-elevated);border-radius:var(--radius-sm);height:6px;overflow:hidden}._barFill_1ejc9_299{background:var(--color-accent);height:100%}._topicRow_1ejc9_309,._recentRow_1ejc9_311{background:var(--color-bg-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);justify-content:space-between;align-items:flex-start;gap:16px;padding:14px 16px;display:flex}._topicTitle_1ejc9_333{font-weight:600}._topicActions_1ejc9_341{flex-wrap:wrap;flex-shrink:0;gap:10px 14px;font-size:.95rem;display:flex}._recentMeta_1ejc9_357{text-align:right;flex-direction:column;flex-shrink:0;align-items:flex-end;gap:6px;display:flex}._badgeDone_1ejc9_375,._badgeProgress_1ejc9_377{font-size:.8rem;font-weight:700}._badgeDone_1ejc9_375{color:var(--color-correct)}._badgeProgress_1ejc9_377{color:var(--color-accent)}._attemptRow_1ejc9_403{border-bottom:1px solid var(--color-border);align-items:flex-start;gap:12px;padding:10px 0;display:flex}._okDot_1ejc9_419,._badDot_1ejc9_421{border-radius:50%;flex-shrink:0;width:10px;height:10px;margin-top:7px}._okDot_1ejc9_419{background:var(--color-correct)}._badDot_1ejc9_421{background:var(--color-incorrect)}@media (width<=640px){._topicRow_1ejc9_309,._recentRow_1ejc9_311{flex-direction:column}._recentMeta_1ejc9_357{text-align:left;align-items:flex-start}}._tracks_66ex4_1{flex-direction:column;gap:40px;margin-top:28px;display:flex}._trackHead_66ex4_8{flex-wrap:wrap;align-items:baseline;gap:12px;display:flex}._trackHead_66ex4_8 h2{margin-bottom:0}._locked_66ex4_19{color:var(--color-locked);font-size:.9rem;font-weight:600}._topics_66ex4_25{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-top:16px;display:grid}._tile_66ex4_32{background:var(--color-surface);border:1px solid var(--color-border);border-left:3px solid var(--color-accent);border-radius:var(--radius-md);color:inherit;padding:18px;scroll-margin-top:72px;display:block}._tile_66ex4_32 h3{margin-bottom:.35em;font-size:1.15rem}._meta_66ex4_48{color:var(--color-accent);margin:12px 0 0;font-size:.9rem}._lessonList_66ex4_54{flex-direction:column;gap:8px;margin:14px 0 0;padding:0;list-style:none;display:flex}._lessonList_66ex4_54 li{justify-content:space-between;align-items:baseline;gap:10px;display:flex}._done_66ex4_70{color:var(--color-correct);font-size:.8rem;font-weight:600}._wrapUp_66ex4_76{border-top:1px solid var(--color-border);margin:14px 0 0;padding-top:12px;font-size:.95rem}._extraLinks_66ex4_83{border-top:1px solid var(--color-border);flex-wrap:wrap;gap:12px 18px;margin:14px 0 0;padding-top:12px;font-size:.95rem;display:flex}._placeholder_66ex4_93{color:var(--color-locked);margin-top:8px}._crumb_108do_1{margin-bottom:.35em;font-size:.95rem}._panel_108do_6{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);max-width:var(--max-read);margin-bottom:16px;padding:24px}._formulas_108do_15{margin:0;padding-left:1.15rem}._formulas_108do_15 li{margin-bottom:.55rem}._meta_108do_24{color:var(--color-text-muted);margin-bottom:8px;font-size:.95rem}._prompt_108do_30{margin-bottom:16px;font-size:1.15rem}._form_108do_15{flex-direction:column;gap:12px;display:flex}._input_108do_41{border-radius:var(--radius-sm);border:1px solid var(--color-border);background:var(--color-bg-elevated);width:100%;max-width:320px;color:var(--color-text);padding:10px 12px}._row_108do_51{flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;display:flex}._primary_108do_59,._secondaryLink_108do_60{border-radius:var(--radius-sm);border:1px solid #0000;justify-content:center;align-items:center;padding:10px 16px;font-weight:600;display:inline-flex}._primary_108do_59{background:var(--color-accent);color:#0b1218}._primary_108do_59:hover{background:var(--color-accent-hover);color:#0b1218}._secondaryLink_108do_60{border-color:var(--color-border);color:var(--color-text);background:0 0}._secondaryLink_108do_60:hover{border-color:var(--color-accent);color:var(--color-accent)}._ok_108do_91{color:var(--color-correct);margin-top:12px;font-weight:600}._bad_108do_97{color:var(--color-incorrect);margin-top:12px;font-weight:600}._crumb_k09zn_1{margin-bottom:.35em;font-size:.95rem}._panel_k09zn_11{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);max-width:var(--max-read);margin-bottom:16px;padding:24px}._progressMeta_k09zn_29{color:var(--color-text-muted);justify-content:space-between;gap:12px;margin-bottom:8px;font-size:.95rem;display:flex}._progressTrack_k09zn_47{background:var(--color-bg-elevated);border-radius:var(--radius-sm);height:6px;margin-bottom:20px;overflow:hidden}._progressFill_k09zn_63{background:var(--color-accent);height:100%;transition:width .25s}._prompt_k09zn_75{margin-bottom:16px;font-size:1.15rem}._form_k09zn_85{flex-direction:column;gap:12px;display:flex}._input_k09zn_97{border-radius:var(--radius-sm);border:1px solid var(--color-border);background:var(--color-bg-elevated);width:100%;max-width:320px;color:var(--color-text);padding:10px 12px}._row_k09zn_117{flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;display:flex}._primary_k09zn_133,._secondary_k09zn_135,._secondaryLink_k09zn_137{border-radius:var(--radius-sm);border:1px solid #0000;justify-content:center;align-items:center;padding:10px 16px;font-weight:600;display:inline-flex}._primary_k09zn_133{background:var(--color-accent);color:#0b1218}._primary_k09zn_133:hover{background:var(--color-accent-hover);color:#0b1218}._secondary_k09zn_135,._secondaryLink_k09zn_137{border-color:var(--color-border);color:var(--color-text);background:0 0}._secondary_k09zn_135:hover,._secondaryLink_k09zn_137:hover{border-color:var(--color-accent);color:var(--color-accent)}._ok_k09zn_203{color:var(--color-correct);margin-top:12px;font-weight:600}._bad_k09zn_215{color:var(--color-incorrect);margin-top:12px;font-weight:600}._printBlock_k09zn_227{border-top:1px solid var(--color-border);margin-top:28px;padding-top:20px}._printBlock_k09zn_227 h3{font-size:1.15rem}._printList_k09zn_247{padding-left:1.25rem}._printList_k09zn_247 li{margin-bottom:.45rem}@media print{.app-shell header,._row_k09zn_117,._progressTrack_k09zn_47,._progressMeta_k09zn_29,._form_k09zn_85,._ok_k09zn_203,._bad_k09zn_215{display:none!important}._page_k09zn_285 h1{color:#000}._panel_k09zn_11{background:0 0;border:none;max-width:none;padding:0}._printBlock_k09zn_227{border:none;margin-top:0;padding-top:0}._printList_k09zn_247{color:#000}}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2)format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff)format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2)format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff)format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff)format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2)format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff)format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2)format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff)format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2)format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff)format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2)format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff)format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2)format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff)format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2)format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff)format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2)format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff)format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff)format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff)format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2)format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff)format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2)format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff)format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2)format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff)format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2)format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff)format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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)format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff)format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2)format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff)format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf)format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2)format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff)format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf)format("truetype")}.katex{text-indent:0;text-rendering:auto;font:1.21em/1.2 KaTeX_Main,Times New Roman,serif;position:relative}.katex *{border-color:currentColor;-ms-high-contrast-adjust:none!important}.katex .katex-version:after{content:"0.18.4"}.katex .katex-mathml{clip-path:inset(50%);border:0;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.katex .katex-html>.katex-newline{display:block}.katex .katex-base{white-space:nowrap;width:min-content;position:relative}.katex .katex-base,.katex .katex-strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;table-layout:fixed;display:inline-table}.katex .vlist-r{display:table-row}.katex .vlist{vertical-align:bottom;display:table-cell;position:relative}.katex .vlist>span{height:0;display:block;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{width:0;overflow:hidden}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{vertical-align:bottom;width:2px;min-width:2px;font-size:1px;display:table-cell}.katex .katex-vbox{flex-direction:column;align-items:baseline;display:inline-flex}.katex .katex-thinbox{flex-direction:row;width:0;max-width:0;display:inline-flex}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline,.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-rule,.katex .katex-underline .underline-line,.katex .mfrac .frac-line{min-height:1px}.katex .mspace{display:inline-block}.katex .katex-smash{line-height:0;display:inline}.katex .clap,.katex .llap,.katex .rlap{width:0;position:relative}.katex .clap>.katex-inner,.katex .llap>.katex-inner,.katex .rlap>.katex-inner{position:absolute}.katex .clap>.katex-fix,.katex .llap>.katex-fix,.katex .rlap>.katex-fix{display:inline-block}.katex .llap>.katex-inner{right:0}.katex .clap>.katex-inner,.katex .rlap>.katex-inner{left:0}.katex .clap>.katex-inner>span{margin-left:-50%;margin-right:50%}.katex .katex-rule{border:0 solid;display:inline-block;position:relative}.katex .katex-hline,.katex .katex-overline .overline-line,.katex .katex-underline .underline-line{border-bottom-style:solid;width:100%;display:inline-block}.katex .katex-hdashline{border-bottom-style:dashed;width:100%;display:inline-block}.katex .sqrt>.katex-root{margin-left:.277778em;margin-right:-.555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .katex-sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .katex-sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .katex-sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .katex-sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .katex-sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .katex-sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .katex-sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .katex-sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .katex-sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .katex-sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .katex-sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .katex-sizing.reset-size2.size1{font-size:.833333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .katex-sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .katex-sizing.reset-size2.size3{font-size:1.16667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .katex-sizing.reset-size2.size4{font-size:1.33333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .katex-sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .katex-sizing.reset-size2.size6{font-size:1.66667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .katex-sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .katex-sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .katex-sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .katex-sizing.reset-size2.size10{font-size:3.45667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .katex-sizing.reset-size2.size11{font-size:4.14667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .katex-sizing.reset-size3.size1{font-size:.714286em}.katex .fontsize-ensurer.reset-size3.size2,.katex .katex-sizing.reset-size3.size2{font-size:.857143em}.katex .fontsize-ensurer.reset-size3.size3,.katex .katex-sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .katex-sizing.reset-size3.size4{font-size:1.14286em}.katex .fontsize-ensurer.reset-size3.size5,.katex .katex-sizing.reset-size3.size5{font-size:1.28571em}.katex .fontsize-ensurer.reset-size3.size6,.katex .katex-sizing.reset-size3.size6{font-size:1.42857em}.katex .fontsize-ensurer.reset-size3.size7,.katex .katex-sizing.reset-size3.size7{font-size:1.71429em}.katex .fontsize-ensurer.reset-size3.size8,.katex .katex-sizing.reset-size3.size8{font-size:2.05714em}.katex .fontsize-ensurer.reset-size3.size9,.katex .katex-sizing.reset-size3.size9{font-size:2.46857em}.katex .fontsize-ensurer.reset-size3.size10,.katex .katex-sizing.reset-size3.size10{font-size:2.96286em}.katex .fontsize-ensurer.reset-size3.size11,.katex .katex-sizing.reset-size3.size11{font-size:3.55429em}.katex .fontsize-ensurer.reset-size4.size1,.katex .katex-sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .katex-sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .katex-sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .katex-sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .katex-sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .katex-sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .katex-sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .katex-sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .katex-sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .katex-sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .katex-sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .katex-sizing.reset-size5.size1{font-size:.555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .katex-sizing.reset-size5.size2{font-size:.666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .katex-sizing.reset-size5.size3{font-size:.777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .katex-sizing.reset-size5.size4{font-size:.888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .katex-sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .katex-sizing.reset-size5.size6{font-size:1.11111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .katex-sizing.reset-size5.size7{font-size:1.33333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .katex-sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .katex-sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .katex-sizing.reset-size5.size10{font-size:2.30444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .katex-sizing.reset-size5.size11{font-size:2.76444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .katex-sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .katex-sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .katex-sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .katex-sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .katex-sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .katex-sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .katex-sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .katex-sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .katex-sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .katex-sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .katex-sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .katex-sizing.reset-size7.size1{font-size:.416667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .katex-sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .katex-sizing.reset-size7.size3{font-size:.583333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .katex-sizing.reset-size7.size4{font-size:.666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .katex-sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .katex-sizing.reset-size7.size6{font-size:.833333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .katex-sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .katex-sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .katex-sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .katex-sizing.reset-size7.size10{font-size:1.72833em}.katex .fontsize-ensurer.reset-size7.size11,.katex .katex-sizing.reset-size7.size11{font-size:2.07333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .katex-sizing.reset-size8.size1{font-size:.347222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .katex-sizing.reset-size8.size2{font-size:.416667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .katex-sizing.reset-size8.size3{font-size:.486111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .katex-sizing.reset-size8.size4{font-size:.555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .katex-sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .katex-sizing.reset-size8.size6{font-size:.694444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .katex-sizing.reset-size8.size7{font-size:.833333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .katex-sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .katex-sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .katex-sizing.reset-size8.size10{font-size:1.44028em}.katex .fontsize-ensurer.reset-size8.size11,.katex .katex-sizing.reset-size8.size11{font-size:1.72778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .katex-sizing.reset-size9.size1{font-size:.289352em}.katex .fontsize-ensurer.reset-size9.size2,.katex .katex-sizing.reset-size9.size2{font-size:.347222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .katex-sizing.reset-size9.size3{font-size:.405093em}.katex .fontsize-ensurer.reset-size9.size4,.katex .katex-sizing.reset-size9.size4{font-size:.462963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .katex-sizing.reset-size9.size5{font-size:.520833em}.katex .fontsize-ensurer.reset-size9.size6,.katex .katex-sizing.reset-size9.size6{font-size:.578704em}.katex .fontsize-ensurer.reset-size9.size7,.katex .katex-sizing.reset-size9.size7{font-size:.694444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .katex-sizing.reset-size9.size8{font-size:.833333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .katex-sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .katex-sizing.reset-size9.size10{font-size:1.20023em}.katex .fontsize-ensurer.reset-size9.size11,.katex .katex-sizing.reset-size9.size11{font-size:1.43981em}.katex .fontsize-ensurer.reset-size10.size1,.katex .katex-sizing.reset-size10.size1{font-size:.24108em}.katex .fontsize-ensurer.reset-size10.size2,.katex .katex-sizing.reset-size10.size2{font-size:.289296em}.katex .fontsize-ensurer.reset-size10.size3,.katex .katex-sizing.reset-size10.size3{font-size:.337512em}.katex .fontsize-ensurer.reset-size10.size4,.katex .katex-sizing.reset-size10.size4{font-size:.385728em}.katex .fontsize-ensurer.reset-size10.size5,.katex .katex-sizing.reset-size10.size5{font-size:.433944em}.katex .fontsize-ensurer.reset-size10.size6,.katex .katex-sizing.reset-size10.size6{font-size:.48216em}.katex .fontsize-ensurer.reset-size10.size7,.katex .katex-sizing.reset-size10.size7{font-size:.578592em}.katex .fontsize-ensurer.reset-size10.size8,.katex .katex-sizing.reset-size10.size8{font-size:.694311em}.katex .fontsize-ensurer.reset-size10.size9,.katex .katex-sizing.reset-size10.size9{font-size:.833173em}.katex .fontsize-ensurer.reset-size10.size10,.katex .katex-sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .katex-sizing.reset-size10.size11{font-size:1.19961em}.katex .fontsize-ensurer.reset-size11.size1,.katex .katex-sizing.reset-size11.size1{font-size:.200965em}.katex .fontsize-ensurer.reset-size11.size2,.katex .katex-sizing.reset-size11.size2{font-size:.241158em}.katex .fontsize-ensurer.reset-size11.size3,.katex .katex-sizing.reset-size11.size3{font-size:.281351em}.katex .fontsize-ensurer.reset-size11.size4,.katex .katex-sizing.reset-size11.size4{font-size:.321543em}.katex .fontsize-ensurer.reset-size11.size5,.katex .katex-sizing.reset-size11.size5{font-size:.361736em}.katex .fontsize-ensurer.reset-size11.size6,.katex .katex-sizing.reset-size11.size6{font-size:.401929em}.katex .fontsize-ensurer.reset-size11.size7,.katex .katex-sizing.reset-size11.size7{font-size:.482315em}.katex .fontsize-ensurer.reset-size11.size8,.katex .katex-sizing.reset-size11.size8{font-size:.578778em}.katex .fontsize-ensurer.reset-size11.size9,.katex .katex-sizing.reset-size11.size9{font-size:.694534em}.katex .fontsize-ensurer.reset-size11.size10,.katex .katex-sizing.reset-size11.size10{font-size:.833601em}.katex .fontsize-ensurer.reset-size11.size11,.katex .katex-sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{width:.12em;display:inline-block}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .katex-accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .katex-accent .accent-body{position:relative}.katex .katex-accent .accent-body:not(.accent-full){width:0}.katex .katex-overlay{display:block}.katex .mtable .vertical-separator{min-width:1px;display:inline-block}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;height:inherit;width:100%;display:block;position:absolute}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;min-width:0;max-width:none;min-height:0;max-height:none}.katex .katex-stretchy{width:100%;display:block;position:relative;overflow:hidden}.katex .katex-stretchy:after,.katex .katex-stretchy:before{content:""}.katex .hide-tail{width:100%;position:relative;overflow:hidden}.katex .halfarrow-left{width:50.2%;position:absolute;left:0;overflow:hidden}.katex .halfarrow-right{width:50.2%;position:absolute;right:0;overflow:hidden}.katex .brace-left{width:25.1%;position:absolute;left:0;overflow:hidden}.katex .brace-center{width:50%;position:absolute;left:25%;overflow:hidden}.katex .brace-right{width:25.1%;position:absolute;right:0;overflow:hidden}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{box-sizing:border-box;border:.04em solid}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .katex-sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{box-sizing:border-box;border-top:.049em solid;border-right:.049em solid;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{text-align:left;display:inline-block;position:absolute;right:calc(50% + .3em)}.katex .cd-label-right{text-align:right;display:inline-block;position:absolute;left:calc(50% + .3em)}.katex-display{text-align:center;margin:1em 0;display:block}.katex-display>.katex{text-align:center;white-space:nowrap;display:block}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.katex-tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.katex-tag{left:0;right:auto}.katex-display.fleqn>.katex{text-align:left;padding-left:2em}body{counter-reset:katexEqnNo mmlEqnNo}:root{--color-bg:#0f1419;--color-bg-elevated:#1a222c;--color-surface:#243040;--color-border:#2e3d4f;--color-text:#e8eef4;--color-text-muted:#8b9aab;--color-accent:#2ec4b6;--color-accent-hover:#3dd9ca;--color-accent-dim:#2ec4b624;--color-correct:#5dbe8a;--color-incorrect:#e07a5f;--color-locked:#4a5563;--font-display:"Fraunces", "Georgia", serif;--font-body:"Source Sans 3", "Segoe UI", sans-serif;--radius-sm:6px;--radius-md:10px;--space:4px;--gutter:24px;--max-read:78ch;--shadow-soft:0 8px 28px #00000047}@media (width>=768px){:root{--gutter:48px}}*,:before,:after{box-sizing:border-box}html,body,#root{min-height:100%}body{font-family:var(--font-body);color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;background-image:radial-gradient(80% 55% at 88% -10%,#2ec4b62e,#0000 55%),linear-gradient(#2ec4b609 1px,#0000 1px),linear-gradient(90deg,#2ec4b609 1px,#0000 1px);background-size:auto,24px 24px,24px 24px;background-attachment:fixed;margin:0;font-size:1.05rem;line-height:1.55}h1,h2,h3,h4{font-family:var(--font-display);margin:0 0 .5em;font-weight:700;line-height:1.2}p{margin:0 0 1em}a{color:var(--color-accent);text-decoration:none}a:hover{color:var(--color-accent-hover)}button,input{font:inherit}button{cursor:pointer}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}@keyframes fade-up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.fade-up{animation:.4s ease-out both fade-up}.app-shell{flex-direction:column;min-height:100vh;display:flex}.page{width:min(1100px,100%);padding:32px var(--gutter) 64px;flex:1;margin:0 auto}.page-narrow{width:min(720px,100%)}.muted{color:var(--color-text-muted)}.sr-only{clip:rect(0, 0, 0, 0);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}