@import"https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@600;700;800&family=JetBrains+Mono:wght@500;700&display=swap";._thumb_hmcb6_3{--thumb-ground: oklch(95% .035 235);--thumb-blob: oklch(88% .07 235);--thumb-accent: oklch(62% .15 240);--thumb-accent-edge: oklch(48% .14 245);--thumb-accent-ink: oklch(99% .005 240);--thumb-ink: oklch(27% .035 285);--thumb-ink-edge: oklch(14% .02 285);--thumb-paper: oklch(100% 0 0);--thumb-paper-edge: oklch(84% .03 240);--thumb-muted: oklch(45% .03 260);--thumb-pear: oklch(88% .15 95);--thumb-pear-edge: oklch(70% .14 85);--thumb-coral: oklch(66% .2 25);display:block;width:100%;height:auto;aspect-ratio:16 / 9;font-family:var(--font-display, "Be Vietnam Pro", "Inter", sans-serif)}._thumb_hmcb6_3[data-group=verbs]{--thumb-ground: oklch(95.5% .035 55);--thumb-blob: oklch(88% .08 50);--thumb-accent: oklch(66% .17 40);--thumb-accent-edge: oklch(52% .16 35);--thumb-paper-edge: oklch(84% .04 50)}._thumb_hmcb6_3[data-group=clauses]{--thumb-ground: oklch(95% .035 170);--thumb-blob: oklch(87% .07 170);--thumb-accent: oklch(60% .12 170);--thumb-accent-edge: oklch(46% .1 175);--thumb-paper-edge: oklch(83% .04 170)}.chakra-ui-dark ._thumb_hmcb6_3,[data-theme=dark] ._thumb_hmcb6_3{--thumb-ground: oklch(30% .04 240);--thumb-blob: oklch(36% .06 240);--thumb-paper: oklch(24% .02 260);--thumb-paper-edge: oklch(17% .02 260);--thumb-ink: oklch(92% .02 280);--thumb-ink-edge: oklch(70% .03 280);--thumb-muted: oklch(80% .03 260)}.chakra-ui-dark ._thumb_hmcb6_3[data-group=verbs],[data-theme=dark] ._thumb_hmcb6_3[data-group=verbs]{--thumb-ground: oklch(30% .045 45);--thumb-blob: oklch(37% .07 45)}.chakra-ui-dark ._thumb_hmcb6_3[data-group=clauses],[data-theme=dark] ._thumb_hmcb6_3[data-group=clauses]{--thumb-ground: oklch(29% .04 175);--thumb-blob: oklch(35% .06 175)}._ground_hmcb6_58{fill:var(--thumb-ground)}._blob_hmcb6_59{fill:var(--thumb-blob)}._blobSoft_hmcb6_60{fill:var(--thumb-blob);opacity:.55}._number_hmcb6_61{fill:var(--thumb-accent-edge);font-family:JetBrains Mono,ui-monospace,monospace;font-size:15px;font-weight:700;opacity:.55}._chipText_hmcb6_63{font-weight:800;letter-spacing:-.01em}._chipEdge_hmcb6_64{stroke:none}._soft_hmcb6_66 ._chipFace_hmcb6_66{fill:var(--thumb-paper);stroke:var(--thumb-paper-edge);stroke-width:2}._soft_hmcb6_66 ._chipEdge_hmcb6_64{fill:var(--thumb-paper-edge)}._soft_hmcb6_66 ._chipText_hmcb6_63{fill:var(--thumb-ink)}._solid_hmcb6_70 ._chipFace_hmcb6_66{fill:var(--thumb-accent)}._solid_hmcb6_70 ._chipEdge_hmcb6_64{fill:var(--thumb-accent-edge)}._solid_hmcb6_70 ._chipText_hmcb6_63{fill:var(--thumb-accent-ink)}._ink_hmcb6_74 ._chipFace_hmcb6_66{fill:var(--thumb-ink)}._ink_hmcb6_74 ._chipEdge_hmcb6_64{fill:var(--thumb-ink-edge)}._ink_hmcb6_74 ._chipText_hmcb6_63{fill:var(--thumb-paper)}._ghost_hmcb6_78 ._chipFace_hmcb6_66{fill:none;stroke:var(--thumb-muted);stroke-width:2;stroke-dasharray:5 5}._ghost_hmcb6_78 ._chipEdge_hmcb6_64{fill:none}._ghost_hmcb6_78 ._chipText_hmcb6_63{fill:var(--thumb-muted)}._arrow_hmcb6_82 path{fill:none;stroke:var(--thumb-ink);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}._axis_hmcb6_83{fill:none;stroke:var(--thumb-ink);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}._nowLine_hmcb6_84{stroke:var(--thumb-coral);stroke-width:3;stroke-linecap:round}._span_hmcb6_85{fill:var(--thumb-accent);opacity:.45}._mark_hmcb6_86{fill:var(--thumb-accent);stroke:var(--thumb-paper);stroke-width:3}._markAlt_hmcb6_87{fill:var(--thumb-pear);stroke:var(--thumb-pear-edge);stroke-width:2}._markInk_hmcb6_88{fill:var(--thumb-ink)}._dotEmpty_hmcb6_89{fill:var(--thumb-paper);stroke:var(--thumb-paper-edge);stroke-width:2}._dotText_hmcb6_90{fill:var(--thumb-ink);font-size:14px;font-weight:800}._dotTextLight_hmcb6_91{fill:var(--thumb-paper);font-size:14px;font-weight:800}._pulse_hmcb6_92{fill:none;stroke:var(--thumb-coral);stroke-width:2.5}._label_hmcb6_93{fill:var(--thumb-muted);font-size:13px;font-weight:700}._mono_hmcb6_94{fill:var(--thumb-ink);font-family:JetBrains Mono,ui-monospace,monospace;font-size:17px;font-weight:700}._big_hmcb6_95{fill:var(--thumb-ink);font-size:30px;font-weight:800}._bar_hmcb6_96{fill:var(--thumb-accent)}._bar_hmcb6_96:nth-of-type(1){opacity:.45}._box_hmcb6_98{fill:var(--thumb-paper);stroke:var(--thumb-paper-edge);stroke-width:2;stroke-dasharray:6 5}._block_hmcb6_99{fill:var(--thumb-paper);stroke:var(--thumb-paper-edge);stroke-width:2}._blockStrong_hmcb6_100{fill:var(--thumb-accent);opacity:.5}._bracket_hmcb6_101{fill:none;stroke:var(--thumb-accent);stroke-width:4;stroke-linecap:round}._divider_hmcb6_102{stroke:var(--thumb-paper-edge);stroke-width:2;stroke-dasharray:4 6}._cross_hmcb6_103{stroke:var(--thumb-coral);stroke-width:4;stroke-linecap:round}._star_hmcb6_104{fill:var(--thumb-pear);stroke:var(--thumb-pear-edge);stroke-width:2;stroke-linejoin:round}._bubble_hmcb6_105{fill:var(--thumb-paper);stroke:var(--thumb-paper-edge);stroke-width:2}._swap_hmcb6_106{fill:none;stroke:var(--thumb-coral);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}._thumb_hmcb6_3[data-size=hero] ._arrow_hmcb6_82 path{stroke-width:2}._practice_nisvb_5{--sheet-correct: oklch(62% .16 150);--sheet-correct-edge: oklch(48% .14 152);--sheet-wrong: oklch(60% .19 22);--sheet-wrong-edge: oklch(47% .17 22);--sheet-ink: oklch(99% .005 150);max-width:760px;margin:0 auto;padding-bottom:260px}._head_nisvb_18{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-lg)}._close_nisvb_20{display:inline-grid;flex:none;place-items:center;width:44px;height:44px;border-radius:50%;color:var(--color-ink-3);font-size:22px;text-decoration:none;transition:background-color var(--dur-short) var(--ease-out),color var(--dur-short) var(--ease-out)}._close_nisvb_20:hover{background:var(--color-paper-2);color:var(--color-ink)}._progress_nisvb_35{flex:1;height:16px;overflow:hidden;border-radius:var(--radius-pill);background:var(--color-rule)}._progress_nisvb_35 span{display:block;height:100%;border-radius:inherit;background:var(--color-group);box-shadow:inset 0 -4px color-mix(in oklch,var(--color-group) 70%,black),inset 0 4px color-mix(in oklch,var(--color-group) 70%,white);transition:width var(--dur-med) var(--ease-out)}._tally_nisvb_38{display:inline-flex;flex:none;align-items:center;gap:4px;min-width:52px;color:var(--color-success);font-family:var(--font-display);font-size:18px;font-weight:800;font-variant-numeric:tabular-nums}._kicker_nisvb_41{margin:0 0 var(--space-xs);color:var(--color-ink-3);font-size:14px;font-weight:600}._card_nisvb_43{padding:var(--space-lg);border-radius:var(--radius-lg);background:var(--color-card);box-shadow:var(--shadow-card)}._sentence_nisvb_45{margin:0 0 var(--space-lg);color:var(--color-ink);font-family:var(--font-display);font-size:clamp(19px,1.2vw + 14px,23px);font-weight:700;line-height:1.6}._blank_nisvb_47{display:inline-block;min-width:110px;margin:0 6px;padding:0 10px;border-bottom:3px solid var(--color-rule-strong);text-align:center}._blank_nisvb_47[data-state=correct]{border-bottom-color:var(--color-success);color:var(--color-success)}._blank_nisvb_47[data-state=wrong]{border-bottom-color:var(--color-danger);color:var(--color-danger);text-decoration:line-through;text-decoration-thickness:2px}._options_nisvb_51{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-xs)}._option_nisvb_51{display:flex;align-items:center;gap:var(--space-xs);min-height:60px;padding:var(--space-2xs) var(--space-sm) var(--space-2xs) var(--space-2xs);border:0;border-radius:var(--radius-md);background:var(--color-card);box-shadow:0 0 0 2px var(--color-rule) inset,0 4px 0 0 var(--color-rule);color:var(--color-ink);font:inherit;font-size:17px;font-weight:600;text-align:left;cursor:pointer;transform:translateY(0);transition:transform .12s var(--ease-press),box-shadow .12s var(--ease-press),background-color var(--dur-short) var(--ease-out),opacity var(--dur-short) var(--ease-out)}._option_nisvb_51 b{display:inline-grid;flex:none;place-items:center;width:36px;height:36px;border-radius:11px;background:var(--color-paper-2);color:var(--color-ink-2);font-family:var(--font-display);font-size:15px;font-weight:800}._option_nisvb_51:hover:not(:disabled){box-shadow:0 0 0 2px var(--color-brand) inset,0 4px 0 0 var(--color-brand-soft)}._option_nisvb_51:active:not(:disabled){transform:translateY(3px);box-shadow:0 0 0 2px var(--color-brand) inset,0 1px 0 0 var(--color-brand-soft)}._option_nisvb_51:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}._option_nisvb_51:disabled{cursor:default}._option_nisvb_51[data-mark=correct]{background:var(--color-success-soft);box-shadow:0 0 0 2px var(--color-success) inset,0 4px 0 0 var(--color-success)}._option_nisvb_51[data-mark=correct] b{background:var(--color-success);color:var(--color-card)}._option_nisvb_51[data-mark=wrong]{background:var(--color-danger-soft);box-shadow:0 0 0 2px var(--color-danger) inset,0 4px 0 0 var(--color-danger)}._option_nisvb_51[data-mark=wrong] b{background:var(--color-danger);color:var(--color-card)}._option_nisvb_51[data-mark=dim]{opacity:.5}._sheet_nisvb_85{position:fixed;right:0;bottom:0;left:0;z-index:1400;padding:var(--space-md) var(--space-md) calc(var(--space-md) + env(safe-area-inset-bottom));border-radius:var(--radius-lg) var(--radius-lg) 0 0;background:var(--sheet-correct);box-shadow:0 -18px 40px -12px #14122b59;color:var(--sheet-ink);animation:_sheetUp_nisvb_1 .24s var(--ease-out)}._sheet_nisvb_85[data-result=wrong]{background:var(--sheet-wrong)}@keyframes _sheetUp_nisvb_1{0%{transform:translateY(100%)}to{transform:translateY(0)}}._sheetInner_nisvb_106{display:grid;gap:var(--space-sm);max-width:920px;margin:0 auto}._sheetHead_nisvb_107{display:flex;align-items:center;justify-content:space-between;gap:var(--space-sm) var(--space-md);min-width:0}._sheetBody_nisvb_108{display:grid;justify-items:start;gap:var(--space-xs);min-width:0}._sheetTitle_nisvb_109{display:flex;align-items:center;gap:var(--space-xs);min-width:0;margin:0;font-family:var(--font-display);font-size:24px;font-weight:800;line-height:1.2}._sheetIcon_nisvb_110{display:inline-grid;flex:none;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--sheet-ink);color:var(--sheet-correct-edge);font-size:22px}._sheet_nisvb_85[data-result=wrong] ._sheetIcon_nisvb_110{color:var(--sheet-wrong-edge)}._sheetAnswer_nisvb_112{margin:0;font-size:16px;font-weight:700}._sheet_nisvb_85[data-collapsed]{padding-block:var(--space-sm) calc(var(--space-sm) + env(safe-area-inset-bottom))}._sheetToggle_nisvb_116{position:absolute;top:0;right:max(var(--space-md),calc((100% - 920px)/2));display:grid;place-items:center;width:44px;height:44px;border:3px solid var(--sheet-correct);border-radius:50%;background:var(--sheet-ink);color:var(--sheet-correct-edge);font-size:22px;cursor:pointer;transform:translateY(-50%);box-shadow:0 6px 16px -6px #14122b73}._sheet_nisvb_85[data-result=wrong] ._sheetToggle_nisvb_116{border-color:var(--sheet-wrong);color:var(--sheet-wrong-edge)}._sheetToggle_nisvb_116:hover{transform:translateY(calc(-50% - 2px))}._sheetToggle_nisvb_116:focus-visible{outline:3px solid var(--sheet-ink);outline-offset:3px}._explainToggle_nisvb_138{display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 var(--space-sm);border:0;border-radius:var(--radius-pill);background:#fff3;color:var(--sheet-ink);font:inherit;font-size:15px;font-weight:700;cursor:pointer;transition:background-color var(--dur-short) var(--ease-out)}._explainToggle_nisvb_138:hover{background:#ffffff4d}._explainToggle_nisvb_138:focus-visible{outline:3px solid var(--sheet-ink);outline-offset:2px}._sheetExplanation_nisvb_158{display:grid;gap:var(--space-2xs);justify-self:stretch;max-height:32vh;margin:0;padding:var(--space-xs) var(--space-sm);overflow-y:auto;border-radius:var(--radius-sm);background:#ffffff29;font-size:15px;line-height:1.6}._sheetExplanation_nisvb_158 p{margin:0}._sheetExplanation_nisvb_158 strong{font-weight:800}._meaning_nisvb_174{padding-bottom:var(--space-2xs);border-bottom:1px solid oklch(100% 0 0 / .25)}._meaning_nisvb_174 b{font-weight:800}._sheetExplanation_nisvb_158 code{padding:1px 6px;border-radius:6px;background:#ffffff38;font-family:var(--font-mono);font-size:.9em}._continue_nisvb_178{flex:none;min-width:160px;min-height:52px;padding:0 var(--space-lg);border:0;border-radius:var(--radius-pill);background:var(--sheet-ink);box-shadow:0 4px 0 0 var(--sheet-correct-edge);color:var(--sheet-correct-edge);font:inherit;font-family:var(--font-display);font-size:16px;font-weight:800;white-space:nowrap;cursor:pointer;transition:transform .14s var(--ease-press),box-shadow .14s var(--ease-press)}._sheet_nisvb_85[data-result=wrong] ._continue_nisvb_178{box-shadow:0 4px 0 0 var(--sheet-wrong-edge);color:var(--sheet-wrong-edge)}._continue_nisvb_178:hover{transform:translateY(-2px)}._continue_nisvb_178:active{transform:translateY(3px);box-shadow:0 1px 0 0 var(--sheet-correct-edge)}._sheet_nisvb_85 ._continue_nisvb_178:focus-visible,._sheet_nisvb_85 ._sheetToggle_nisvb_116:focus-visible,._sheet_nisvb_85 ._explainToggle_nisvb_138:focus-visible{outline:3px solid var(--sheet-ink);outline-offset:3px}._result_nisvb_203{display:grid;gap:var(--space-lg)}._resultHead_nisvb_204{display:flex;align-items:center;gap:var(--space-lg);padding:var(--space-lg);border-radius:var(--radius-lg);background:var(--color-group-band)}._resultHead_nisvb_204 h1{margin:0 0 var(--space-2xs);color:var(--color-ink);font-size:clamp(24px,1.6vw + 16px,32px);font-weight:800}._resultHead_nisvb_204 p{margin:0;color:var(--color-ink-2);font-size:16.5px;line-height:1.6}._ring_nisvb_208{display:inline-grid;flex:none;place-items:center;width:120px;height:120px;border-radius:50%;background:conic-gradient(var(--color-success) calc(var(--ratio) * 1turn),var(--color-rule) 0)}._ring_nisvb_208 b{display:grid;place-items:center;width:92px;height:92px;border-radius:50%;background:var(--color-card);color:var(--color-ink);font-family:var(--font-display);font-size:26px;font-weight:800;font-variant-numeric:tabular-nums}._resultActions_nisvb_220{display:flex;flex-wrap:wrap;gap:var(--space-xs)}._push_nisvb_222{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2xs);min-height:48px;padding:0 var(--space-md);border:0;border-radius:var(--radius-pill);background:var(--color-brand);box-shadow:0 4px 0 0 var(--color-brand-edge);color:var(--color-brand-ink);font:inherit;font-family:var(--font-display);font-size:15px;font-weight:700;text-decoration:none;white-space:nowrap;cursor:pointer;transition:transform .14s var(--ease-press),box-shadow .14s var(--ease-press)}._push_nisvb_222:hover{transform:translateY(-2px);box-shadow:0 6px 0 0 var(--color-brand-edge)}._push_nisvb_222:active{transform:translateY(3px);box-shadow:0 1px 0 0 var(--color-brand-edge);transition-duration:70ms}._pushSoft_nisvb_246{background:var(--color-card);box-shadow:0 0 0 2px var(--color-rule-strong) inset,0 4px 0 0 var(--color-rule-strong);color:var(--color-brand)}._pushSoft_nisvb_246:hover{box-shadow:0 0 0 2px var(--color-brand) inset,0 6px 0 0 var(--color-rule-strong)}._pushSoft_nisvb_246:active{box-shadow:0 0 0 2px var(--color-brand) inset,0 1px 0 0 var(--color-rule-strong)}._review_nisvb_250{padding:var(--space-lg);border-radius:var(--radius-lg);background:var(--color-card);box-shadow:var(--shadow-card)}._review_nisvb_250 h2{margin:0 0 var(--space-sm);color:var(--color-ink);font-size:20px;font-weight:800}._review_nisvb_250 ol{display:grid;gap:var(--space-sm);margin:0;padding:0;list-style:none}._review_nisvb_250 li{padding:var(--space-sm);border-radius:var(--radius-md);background:var(--color-paper-2)}._review_nisvb_250 ._sentence_nisvb_45{margin:0 0 var(--space-2xs);font-size:17px}._reviewChosen_nisvb_255{display:flex;align-items:center;gap:6px;margin:0 0 var(--space-2xs);color:var(--color-danger);font-weight:700;text-decoration:line-through}._reviewNote_nisvb_256{margin:0;color:var(--color-ink-2);font-size:15px;line-height:1.6}._reviewNote_nisvb_256 code{padding:1px 6px;border-radius:6px;background:var(--color-brand-soft);color:var(--color-brand);font-family:var(--font-mono);font-size:.9em}@media (max-width: 640px){._practice_nisvb_5{padding-bottom:300px}._head_nisvb_18{margin-bottom:var(--space-md)}._card_nisvb_43{padding:var(--space-md) var(--space-sm)}._options_nisvb_51{grid-template-columns:1fr}._sheet_nisvb_85{padding:var(--space-sm) var(--space-sm) calc(var(--space-sm) + env(safe-area-inset-bottom))}._sheetTitle_nisvb_109{font-size:20px}._sheetIcon_nisvb_110{width:32px;height:32px;font-size:18px}._continue_nisvb_178{min-width:0;min-height:46px;padding:0 var(--space-md)}._sheetToggle_nisvb_116{right:var(--space-sm);width:40px;height:40px}._resultHead_nisvb_204{flex-direction:column;align-items:flex-start;padding:var(--space-md)}._resultActions_nisvb_220>*{flex:1 1 100%}._review_nisvb_250{padding:var(--space-md) var(--space-sm)}}@media (prefers-reduced-motion: reduce){._sheet_nisvb_85{animation:_sheetFade_nisvb_1 .15s linear}._option_nisvb_51,._push_nisvb_222,._continue_nisvb_178,._progress_nisvb_35 span{transition:none}}@keyframes _sheetFade_nisvb_1{0%{opacity:0}to{opacity:1}}._backLink_nisvb_285{display:inline-flex;align-items:center;gap:6px;min-height:44px;color:var(--color-ink-2);font-size:14px;font-weight:700;text-decoration:none}._backLink_nisvb_285:hover{color:var(--color-brand)}._setsHead_nisvb_287{margin:var(--space-2xs) 0 var(--space-md);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-lg);background:var(--color-group-band)}._setsHead_nisvb_287 h1{margin:0 0 var(--space-2xs);color:var(--color-ink);font-size:clamp(24px,1.6vw + 16px,32px);font-weight:800}._setsHead_nisvb_287 p{margin:0;color:var(--color-ink-2);font-size:16px;line-height:1.6}._sets_nisvb_287{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-xs);margin:0;padding:0;list-style:none}._setCard_nisvb_292{display:flex;align-items:center;gap:var(--space-sm);min-height:76px;padding:var(--space-sm);border-radius:var(--radius-md);background:var(--color-card);box-shadow:0 0 0 2px var(--color-rule) inset,0 4px 0 0 var(--color-rule);color:var(--color-ink);text-decoration:none;transform:translateY(0);transition:transform .12s var(--ease-press),box-shadow .12s var(--ease-press)}._setCard_nisvb_292:hover{box-shadow:0 0 0 2px var(--color-group) inset,0 4px 0 0 var(--color-group)}._setCard_nisvb_292:active{transform:translateY(3px);box-shadow:0 0 0 2px var(--color-group) inset,0 1px 0 0 var(--color-group)}._setCard_nisvb_292:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}._setNumber_nisvb_310{display:inline-grid;flex:none;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--color-group-soft);color:var(--color-group);font-family:var(--font-display);font-size:20px;font-weight:800}._setCard_nisvb_292[data-done] ._setNumber_nisvb_310{background:var(--color-group);color:var(--color-card)}._setText_nisvb_312{display:grid;flex:1;gap:2px;min-width:0}._setText_nisvb_312 b{font-family:var(--font-display);font-size:17px;font-weight:800}._setText_nisvb_312 small{color:var(--color-ink-3);font-size:13.5px;font-weight:600}._setScore_nisvb_315{display:inline-flex;flex:none;align-items:center;gap:4px;color:var(--color-brand);font-size:14px;font-weight:800;white-space:nowrap}._setCard_nisvb_292[data-done] ._setScore_nisvb_315{color:var(--color-success)}@media (max-width: 640px){._sets_nisvb_287{grid-template-columns:1fr}._setsHead_nisvb_287{padding:var(--space-md) var(--space-sm)}}@media (prefers-reduced-motion: reduce){._setCard_nisvb_292{transition:none}}._page_4il4z_9{--color-paper: oklch(98.4% .008 85);--color-paper-2: oklch(96% .014 85);--color-card: oklch(100% 0 0);--color-ink: oklch(25% .03 285);--color-ink-2: oklch(45% .025 285);--color-ink-3: oklch(58% .02 285);--color-rule: oklch(91% .012 85);--color-rule-strong: oklch(84% .016 85);--color-brand: oklch(55% .21 300);--color-brand-edge: oklch(43% .19 298);--color-brand-soft: oklch(95% .035 305);--color-brand-ink: oklch(99% .005 300);--color-focus: oklch(62% .2 300);--color-group: oklch(56% .15 245);--color-group-soft: oklch(95.5% .03 240);--color-group-band: oklch(97% .02 240);--color-pear: oklch(92% .12 95);--color-pear-soft: oklch(97.5% .04 95);--color-pear-ink: oklch(40% .08 75);--color-success: oklch(52% .13 160);--color-success-soft: oklch(96% .04 160);--color-danger: oklch(55% .19 15);--color-danger-soft: oklch(96.5% .03 15);--color-warning: oklch(58% .13 70);--font-display: "Be Vietnam Pro", "Inter", system-ui, sans-serif;--font-body: "Inter", -apple-system, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;--space-3xs: 4px;--space-2xs: 8px;--space-xs: 12px;--space-sm: 16px;--space-md: 24px;--space-lg: 32px;--space-xl: 48px;--space-2xl: 64px;--radius-sm: 10px;--radius-md: 16px;--radius-lg: 24px;--radius-pill: 999px;--shadow-card: 0 1px 0 var(--color-rule), 0 14px 30px -20px oklch(30% .05 285 / .35);--shadow-lift: 0 1px 0 var(--color-rule), 0 22px 40px -22px oklch(30% .08 285 / .45);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-press: cubic-bezier(.2, .7, .3, 1);--dur-short: .16s;--dur-med: .26s;min-height:calc(100vh - 90px);padding:var(--space-md) var(--space-2xs) var(--space-2xl);color:var(--color-ink);font-family:var(--font-body);overflow-wrap:anywhere}._page_4il4z_9 [data-group=verbs],._page_4il4z_9[data-group=verbs]{--color-group: oklch(58% .16 40);--color-group-soft: oklch(95.5% .035 55);--color-group-band: oklch(97.4% .022 60)}._page_4il4z_9 [data-group=clauses],._page_4il4z_9[data-group=clauses]{--color-group: oklch(52% .11 172);--color-group-soft: oklch(95% .035 170);--color-group-band: oklch(97.2% .02 170)}.chakra-ui-dark ._page_4il4z_9,[data-theme=dark] ._page_4il4z_9{--color-paper: oklch(19% .012 285);--color-paper-2: oklch(23% .015 285);--color-card: oklch(23.5% .016 285);--color-ink: oklch(94% .012 285);--color-ink-2: oklch(80% .018 285);--color-ink-3: oklch(68% .018 285);--color-rule: oklch(31% .018 285);--color-rule-strong: oklch(38% .02 285);--color-brand: oklch(70% .17 305);--color-brand-edge: oklch(55% .18 300);--color-brand-soft: oklch(30% .06 300);--color-brand-ink: oklch(18% .03 300);--color-focus: oklch(76% .15 305);--color-pear-soft: oklch(28% .04 90);--color-pear-ink: oklch(88% .1 95);--color-success: oklch(76% .13 160);--color-success-soft: oklch(28% .045 160);--color-danger: oklch(74% .15 15);--color-danger-soft: oklch(28% .05 15);--color-warning: oklch(80% .12 75);--shadow-card: 0 1px 0 var(--color-rule);--shadow-lift: 0 18px 36px -22px oklch(0% 0 0 / .7)}.chakra-ui-dark ._page_4il4z_9 [data-group],.chakra-ui-dark ._page_4il4z_9[data-group],[data-theme=dark] ._page_4il4z_9 [data-group],[data-theme=dark] ._page_4il4z_9[data-group]{--color-group: oklch(76% .12 235);--color-group-soft: oklch(29% .045 240);--color-group-band: oklch(22% .025 240)}.chakra-ui-dark ._page_4il4z_9 [data-group=verbs],.chakra-ui-dark ._page_4il4z_9[data-group=verbs],[data-theme=dark] ._page_4il4z_9 [data-group=verbs],[data-theme=dark] ._page_4il4z_9[data-group=verbs]{--color-group: oklch(78% .13 50);--color-group-soft: oklch(30% .05 45);--color-group-band: oklch(22% .025 45)}.chakra-ui-dark ._page_4il4z_9 [data-group=clauses],.chakra-ui-dark ._page_4il4z_9[data-group=clauses],[data-theme=dark] ._page_4il4z_9 [data-group=clauses],[data-theme=dark] ._page_4il4z_9[data-group=clauses]{--color-group: oklch(78% .11 172);--color-group-soft: oklch(28% .045 172);--color-group-band: oklch(21% .022 172)}._page_4il4z_9 h1,._page_4il4z_9 h2,._page_4il4z_9 h3{font-family:var(--font-display);font-style:normal;letter-spacing:-.02em}._page_4il4z_9 :focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}._visuallyHidden_4il4z_141{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}._level_4il4z_144{display:inline-flex;align-items:center;gap:6px;color:var(--color-ink-2);font-size:13px;font-weight:700;white-space:nowrap}._levelDots_4il4z_145{display:inline-flex;gap:3px}._levelDots_4il4z_145 i{width:7px;height:7px;border-radius:50%;background:var(--color-rule-strong)}._levelDots_4il4z_145 i[data-on]{background:var(--color-group)}._notice_4il4z_149{margin:0 0 var(--space-md);padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-md);background:var(--color-pear-soft);color:var(--color-pear-ink);font-weight:600}._push_4il4z_159{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2xs);min-height:48px;padding:0 var(--space-md);border:0;border-radius:var(--radius-pill);background:var(--color-brand);color:var(--color-brand-ink);box-shadow:0 4px 0 0 var(--color-brand-edge);font:inherit;font-family:var(--font-display);font-size:15px;font-weight:700;text-decoration:none;white-space:nowrap;cursor:pointer;transform:translateY(0);transition:transform .14s var(--ease-press),box-shadow .14s var(--ease-press)}._push_4il4z_159:hover{transform:translateY(-2px);box-shadow:0 6px 0 0 var(--color-brand-edge)}._push_4il4z_159:active{transform:translateY(3px);box-shadow:0 1px 0 0 var(--color-brand-edge);transition-duration:70ms}._push_4il4z_159:disabled{background:var(--color-rule);color:var(--color-ink-3);box-shadow:0 4px 0 0 var(--color-rule-strong);cursor:not-allowed;transform:none}._pushSoft_4il4z_185{background:var(--color-card);color:var(--color-brand);box-shadow:0 0 0 2px var(--color-rule-strong) inset,0 4px 0 0 var(--color-rule-strong)}._pushSoft_4il4z_185:hover{box-shadow:0 0 0 2px var(--color-brand) inset,0 6px 0 0 var(--color-rule-strong)}._pushSoft_4il4z_185:active{box-shadow:0 0 0 2px var(--color-brand) inset,0 1px 0 0 var(--color-rule-strong)}._toolbar_4il4z_194{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-xs);margin:0 0 var(--space-lg)}._search_4il4z_202{display:flex;flex:1 1 280px;align-items:center;gap:var(--space-xs);max-width:440px;min-height:48px;padding:0 var(--space-sm);border-radius:var(--radius-pill);background:var(--color-card);box-shadow:0 0 0 2px var(--color-rule) inset;color:var(--color-ink-3);transition:box-shadow var(--dur-short) var(--ease-out)}._search_4il4z_202:focus-within{box-shadow:0 0 0 2px var(--color-brand) inset,0 0 0 5px var(--color-brand-soft);color:var(--color-brand)}._search_4il4z_202 input{width:100%;min-width:0;border:0;outline:0;background:transparent;color:var(--color-ink);font:inherit;font-size:16px;font-weight:500}._search_4il4z_202 input::placeholder{color:var(--color-ink-3)}._segment_4il4z_221{display:inline-flex;flex-wrap:wrap;gap:4px;padding:4px;border-radius:var(--radius-pill);background:var(--color-paper-2);box-shadow:0 0 0 1px var(--color-rule) inset}._segment_4il4z_221 button{min-height:40px;padding:0 var(--space-sm);border:0;border-radius:var(--radius-pill);background:transparent;color:var(--color-ink-2);font:inherit;font-size:14px;font-weight:700;white-space:nowrap;cursor:pointer;transition:background-color var(--dur-short) var(--ease-out),color var(--dur-short) var(--ease-out)}._segment_4il4z_221 button:hover{color:var(--color-ink)}._segment_4il4z_221 button[aria-pressed=true]{background:var(--color-card);color:var(--color-brand);box-shadow:0 1px 0 var(--color-rule-strong),0 4px 12px -6px #2b265466}._shelf_4il4z_242{margin:0 0 var(--space-lg);padding:var(--space-md) var(--space-md) 0;border-radius:var(--radius-lg);background:var(--color-group-band)}._shelfHead_4il4z_249{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--space-sm);margin-bottom:var(--space-sm)}._shelfTitle_4il4z_250{display:grid;grid-template-columns:auto 1fr;align-items:baseline;gap:2px var(--space-xs);min-width:0}._shelfTitle_4il4z_250 h2{position:relative;margin:0;padding-left:18px;color:var(--color-ink);font-size:22px;font-weight:800;line-height:1.25}._shelfTitle_4il4z_250 h2:before{content:"";position:absolute;left:0;top:.32em;width:10px;height:10px;border-radius:3px;background:var(--color-group);transform:rotate(45deg)}._shelfCount_4il4z_253{color:var(--color-group);font-size:14px;font-weight:700;white-space:nowrap}._shelfTitle_4il4z_250 p{grid-column:1 / -1;max-width:72ch;margin:0;padding-left:18px;color:var(--color-ink-2);font-size:15px;line-height:1.55}._shelfNav_4il4z_256{display:flex;flex:none;gap:var(--space-2xs)}._shelfNav_4il4z_256 button{display:inline-grid;place-items:center;width:44px;height:44px;border:0;border-radius:50%;background:var(--color-card);box-shadow:0 0 0 2px var(--color-rule) inset,0 3px 0 0 var(--color-rule);color:var(--color-ink);font-size:20px;cursor:pointer;transition:transform .12s var(--ease-press),box-shadow .12s var(--ease-press)}._shelfNav_4il4z_256 button:hover:not(:disabled){box-shadow:0 0 0 2px var(--color-group) inset,0 3px 0 0 var(--color-group);color:var(--color-group)}._shelfNav_4il4z_256 button:active:not(:disabled){transform:translateY(2px);box-shadow:0 0 0 2px var(--color-group) inset,0 1px 0 0 var(--color-group)}._shelfNav_4il4z_256 button:disabled{color:var(--color-rule-strong);cursor:default}._row_4il4z_278{display:flex;gap:var(--space-sm);margin:0 calc(var(--space-md) * -1);padding:var(--space-3xs) var(--space-md) var(--space-md);overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x mandatory;scroll-padding-inline:var(--space-md);scrollbar-width:thin;scrollbar-color:var(--color-rule-strong) transparent}._row_4il4z_278>._card_4il4z_291{flex:0 0 264px;scroll-snap-align:start}._card_4il4z_291{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-md);background:var(--color-card);box-shadow:var(--shadow-card);color:inherit;text-decoration:none;transform:translateY(0);transition:transform var(--dur-med) var(--ease-out),box-shadow var(--dur-med) var(--ease-out)}._card_4il4z_291:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}._card_4il4z_291:active{transform:translateY(-1px)}._card_4il4z_291>svg{border-bottom:1px solid var(--color-rule)}._cardBody_4il4z_310{display:flex;flex:1;flex-direction:column;gap:2px;padding:var(--space-sm) var(--space-sm) var(--space-sm)}._card_4il4z_291 h3{margin:0;color:var(--color-ink);font-size:17px;font-weight:700;line-height:1.35}._card_4il4z_291 small{color:var(--color-ink-3);font-size:13.5px;font-weight:500}._cardMeta_4il4z_313{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-2xs);margin-top:auto;padding-top:var(--space-xs)}._cardCount_4il4z_314{display:inline-flex;align-items:center;gap:5px;color:var(--color-ink-3);font-size:13px;font-weight:600;white-space:nowrap}._empty_4il4z_316{padding:var(--space-md);border-radius:var(--radius-md);background:var(--color-card);color:var(--color-ink-2);text-align:center;font-weight:600}._lesson_4il4z_319{max-width:1180px}._back_4il4z_321{display:inline-flex;align-items:center;gap:6px;min-height:44px;margin-bottom:var(--space-2xs);color:var(--color-ink-2);font-size:14px;font-weight:700;text-decoration:none;white-space:nowrap}._back_4il4z_321:hover{color:var(--color-brand)}._lessonHero_4il4z_336{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:center;gap:var(--space-lg);margin-bottom:var(--space-lg);padding:var(--space-lg);border-radius:var(--radius-lg);background:var(--color-group-band)}._meta_4il4z_347{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-2xs) var(--space-xs)}._groupTag_4il4z_348{padding:4px 12px;border-radius:var(--radius-pill);background:var(--color-group-soft);color:var(--color-group);font-size:13px;font-weight:700}._lessonIntro_4il4z_349 h1{margin:var(--space-sm) 0 4px;color:var(--color-ink);font-size:clamp(28px,2.6vw + 14px,42px);font-weight:800;line-height:1.15}._titleEn_4il4z_350{margin:0 0 var(--space-sm);color:var(--color-group);font-family:var(--font-display);font-size:18px;font-weight:700}._summary_4il4z_351{max-width:62ch;margin:0 0 var(--space-md);color:var(--color-ink-2);font-size:17px;line-height:1.65}._lessonArt_4il4z_352{overflow:hidden;border-radius:var(--radius-md);box-shadow:var(--shadow-lift)}._lessonBody_4il4z_355{display:grid;grid-template-columns:240px minmax(0,1fr);align-items:start;gap:var(--space-xl)}._toc_4il4z_357{position:sticky;top:84px}._toc_4il4z_357 b{display:block;margin:0 0 var(--space-2xs) var(--space-xs);color:var(--color-ink-3);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}._toc_4il4z_357 ol{margin:0;padding:0;list-style:none}._toc_4il4z_357 a{display:block;padding:8px var(--space-xs);border-left:3px solid var(--color-rule);color:var(--color-ink-2);font-size:14px;font-weight:600;line-height:1.4;text-decoration:none;transition:color var(--dur-short) var(--ease-out),border-color var(--dur-short) var(--ease-out)}._toc_4il4z_357 a:hover{color:var(--color-ink)}._toc_4il4z_357 a[aria-current=true]{border-left-color:var(--color-group);color:var(--color-ink);font-weight:700}._content_4il4z_376{display:flex;flex-direction:column;gap:var(--space-md);min-width:0;max-width:820px}._section_4il4z_378{padding:var(--space-lg);border-radius:var(--radius-lg);background:var(--color-card);box-shadow:var(--shadow-card);scroll-margin-top:84px}._section_4il4z_378 h2{display:flex;align-items:center;gap:var(--space-xs);margin:0 0 var(--space-sm);color:var(--color-ink);font-size:22px;font-weight:800;line-height:1.3}._sectionNumber_4il4z_389:before{content:attr(data-number)}._sectionNumber_4il4z_389{display:inline-grid;flex:none;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--color-group-soft);color:var(--color-group);font-size:16px;font-weight:800}._section_4il4z_378 p{margin:0 0 var(--space-sm);color:var(--color-ink-2);font-size:16.5px;line-height:1.75}._section_4il4z_378 p:last-child{margin-bottom:0}._section_4il4z_378 strong,._summary_4il4z_351 strong{color:var(--color-ink);font-weight:700}._section_4il4z_378 code,._summary_4il4z_351 code{padding:2px 7px;border-radius:7px;background:var(--color-brand-soft);color:var(--color-brand);font-family:var(--font-mono);font-size:.88em;font-weight:500}._formulas_4il4z_420{display:grid;gap:var(--space-2xs);margin:var(--space-2xs) 0 var(--space-sm)}._formulas_4il4z_420 code{display:block;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);background:var(--color-ink);color:var(--color-paper);box-shadow:0 4px color-mix(in oklch,var(--color-ink) 70%,black);font-size:15.5px;font-weight:700;line-height:1.55}._points_4il4z_434{margin:0 0 var(--space-sm);padding:0;list-style:none}._points_4il4z_434 li{position:relative;margin:0 0 var(--space-2xs);padding-left:22px;color:var(--color-ink-2);font-size:16.5px;line-height:1.7}._points_4il4z_434 li:before{content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:3px;background:var(--color-group);transform:rotate(45deg)}._tableWrap_4il4z_438{margin:var(--space-2xs) 0 var(--space-sm);overflow-x:auto;border-radius:var(--radius-md);box-shadow:0 0 0 1px var(--color-rule) inset}._tableWrap_4il4z_438 table{width:100%;border-collapse:collapse;font-size:15px}._tableWrap_4il4z_438 th,._tableWrap_4il4z_438 td{padding:var(--space-xs) var(--space-sm);border-bottom:1px solid var(--color-rule);text-align:left;vertical-align:top;line-height:1.55}._tableWrap_4il4z_438 th{background:var(--color-group-soft);color:var(--color-ink);font-family:var(--font-display);font-weight:700;white-space:nowrap}._tableWrap_4il4z_438 td{color:var(--color-ink-2)}._tableWrap_4il4z_438 tbody tr:nth-child(2n) td{background:var(--color-paper)}._tableWrap_4il4z_438 tr:last-child td{border-bottom:0}._examples_4il4z_446{margin-top:var(--space-xs)}._examples_4il4z_446>b{display:block;margin-bottom:var(--space-2xs);color:var(--color-ink-3);font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}._examples_4il4z_446 ul{display:grid;gap:var(--space-2xs);margin:0;padding:0;list-style:none}._examples_4il4z_446 li{display:flex;flex-direction:column;gap:3px;padding:var(--space-xs) var(--space-sm);border-left:4px solid var(--color-group);border-radius:4px var(--radius-sm) var(--radius-sm) 4px;background:var(--color-group-band)}._examples_4il4z_446 li span:first-child{color:var(--color-ink);font-size:16.5px;font-weight:600;line-height:1.55}._examples_4il4z_446 li span:last-child{color:var(--color-ink-3);font-size:15px;line-height:1.5}._tips_4il4z_453{background:var(--color-pear-soft);box-shadow:0 0 0 2px var(--color-pear) inset}._tipsIcon_4il4z_454{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--color-pear);color:#3f2903}._tips_4il4z_453 ol{margin:0;padding:0;list-style:none;counter-reset:tip}._tips_4il4z_453 li{position:relative;margin:0 0 var(--space-sm);padding-left:40px;color:var(--color-ink-2);font-size:16.5px;line-height:1.7;counter-increment:tip}._tips_4il4z_453 li:last-child{margin-bottom:0}._tips_4il4z_453 li:before{content:counter(tip);position:absolute;left:0;top:2px;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--color-card);color:var(--color-pear-ink);font-family:var(--font-display);font-size:13px;font-weight:800;box-shadow:0 0 0 2px var(--color-pear) inset}._mistakes_4il4z_460{display:grid;gap:var(--space-sm)}._mistake_4il4z_460{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--space-2xs)}._mistake_4il4z_460 p{display:flex;align-items:flex-start;gap:var(--space-2xs);margin:0;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);font-size:15.5px;line-height:1.55}._wrong_4il4z_463{background:var(--color-danger-soft);color:var(--color-ink-2)!important;text-decoration:line-through;text-decoration-color:color-mix(in oklch,var(--color-danger) 60%,transparent)}._right_4il4z_464{background:var(--color-success-soft);color:var(--color-ink)!important;font-weight:600}._markIcon_4il4z_465{display:inline-grid;flex:none;place-items:center;width:22px;height:22px;margin-top:1px;border-radius:50%;color:var(--color-card);font-size:13px}._wrong_4il4z_463 ._markIcon_4il4z_465{background:var(--color-danger)}._right_4il4z_464 ._markIcon_4il4z_465{background:var(--color-success)}._section_4il4z_378 ._mistakeNote_4il4z_468{grid-column:1 / -1;padding:0 var(--space-2xs);background:none;color:var(--color-ink-3);font-size:14.5px}._byline_4il4z_471{display:flex;flex-wrap:wrap;gap:4px var(--space-2xs);margin:var(--space-2xs) 0 0;color:var(--color-ink-3);font-size:14px;font-weight:600}._samples_4il4z_474{display:grid;gap:var(--space-sm);margin:var(--space-sm) 0 0;padding:0;list-style:none}._sample_4il4z_474{padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);background:var(--color-paper);box-shadow:0 0 0 1px var(--color-rule) inset}._section_4il4z_378 ._sampleQuestion_4il4z_476{display:flex;gap:var(--space-2xs);margin:0 0 var(--space-2xs);color:var(--color-ink);font-size:16.5px;font-weight:600;line-height:1.6}._sampleNumber_4il4z_477{flex:none;color:var(--color-group);font-weight:800}._sampleBlank_4il4z_478{display:inline-block;min-width:4.5em;margin:0 4px;border-bottom:2px solid var(--color-ink-3);color:transparent;line-height:1.2;user-select:none}._sampleOptions_4il4z_479{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px var(--space-md);margin:0 0 var(--space-xs);padding:0 0 0 26px;list-style:none;color:var(--color-ink-2);font-size:15.5px;line-height:1.5}._sampleOptions_4il4z_479 b{color:var(--color-ink-3);font-weight:700}._sampleAnswer_4il4z_481{margin-left:26px}._sampleAnswer_4il4z_481 summary{width:fit-content;color:var(--color-brand);font-size:14.5px;font-weight:700;cursor:pointer}._sampleAnswer_4il4z_481[open] summary{margin-bottom:var(--space-2xs)}._section_4il4z_378 ._sampleAnswer_4il4z_481 p{margin:0 0 4px;font-size:15.5px;line-height:1.65}._faq_4il4z_487{display:grid;gap:var(--space-md)}._faq_4il4z_487 h3{margin:0 0 6px;color:var(--color-ink);font-size:17.5px;font-weight:800;line-height:1.4}._practiceCta_4il4z_491{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-sm) var(--space-md);background:var(--color-brand-soft);box-shadow:none}._practiceCta_4il4z_491 h2{margin-bottom:4px}._practiceCta_4il4z_491 h2 svg{color:var(--color-brand)}._pager_4il4z_496{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--space-sm)}._pager_4il4z_496 a{display:flex;align-items:center;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);background:var(--color-card);box-shadow:var(--shadow-card);color:var(--color-ink);font-family:var(--font-display);font-weight:700;line-height:1.35;text-decoration:none;transition:transform var(--dur-med) var(--ease-out),box-shadow var(--dur-med) var(--ease-out)}._pager_4il4z_496 a:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}._pager_4il4z_496 a>span{display:flex;flex-direction:column;gap:4px;min-width:0}._pager_4il4z_496 small{display:inline-flex;align-items:center;gap:4px;color:var(--color-ink-3);font-family:var(--font-body);font-size:12px;font-weight:700}._pagerNext_4il4z_516{justify-content:flex-end;text-align:right}._pagerNext_4il4z_516>span{align-items:flex-end}@media (max-width: 1024px){._lessonHero_4il4z_336{grid-template-columns:1fr;padding:var(--space-md)}._lessonArt_4il4z_352{order:-1;max-width:520px}._lessonBody_4il4z_355{grid-template-columns:1fr;gap:var(--space-md)}._toc_4il4z_357{position:static;overflow-x:auto;scrollbar-width:none}._toc_4il4z_357 b{display:none}._toc_4il4z_357 ol{display:flex;gap:var(--space-2xs);width:max-content}._toc_4il4z_357 a{padding:8px 14px;border:0;border-radius:var(--radius-pill);background:var(--color-card);box-shadow:0 0 0 1px var(--color-rule) inset;white-space:nowrap}._toc_4il4z_357 a[aria-current=true]{background:var(--color-group-soft);box-shadow:none;color:var(--color-group)}}@media (max-width: 640px){._page_4il4z_9{padding:var(--space-sm) 0 var(--space-xl)}._search_4il4z_202{max-width:none}._segment_4il4z_221{width:100%}._segment_4il4z_221 button{flex:1;padding:0 var(--space-2xs)}._shelf_4il4z_242{margin-inline:calc(var(--space-sm) * -1);padding:var(--space-md) var(--space-sm);border-radius:0}._shelfNav_4il4z_256{display:none}._shelfTitle_4il4z_250{grid-template-columns:1fr}._shelfTitle_4il4z_250 p{padding-left:0}._shelfCount_4il4z_253{padding-left:18px}._row_4il4z_278{margin-inline:calc(var(--space-sm) * -1);padding-inline:var(--space-sm);scroll-padding-inline:var(--space-sm);gap:var(--space-xs)}._row_4il4z_278>._card_4il4z_291{flex-basis:min(76vw,264px)}._lessonHero_4il4z_336{margin-inline:calc(var(--space-sm) * -1);padding:var(--space-sm);border-radius:0}._section_4il4z_378{padding:var(--space-md) var(--space-sm);border-radius:var(--radius-md)}._section_4il4z_378 h2{font-size:19px}._mistake_4il4z_460{grid-template-columns:1fr}._sample_4il4z_474{padding:var(--space-sm)}._sampleOptions_4il4z_479{grid-template-columns:1fr;padding-left:0}._sampleAnswer_4il4z_481{margin-left:0}._pager_4il4z_496{grid-template-columns:1fr}}@media (prefers-reduced-motion: reduce){._card_4il4z_291,._push_4il4z_159,._pager_4il4z_496 a{transition:none}._card_4il4z_291:hover,._pager_4il4z_496 a:hover,._push_4il4z_159:hover{transform:none}}