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tbody,.admin-table tr,.admin-table th,.admin-table td{width:100%;display:block}.admin-table thead{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.admin-table tbody{gap:0;display:grid}.admin-table tbody tr{border-top:1px solid var(--color-border-strong);background:0 0;border-radius:0;overflow:visible}.admin-table tbody tr:last-child{border-bottom:1px solid var(--color-border-strong)}.admin-table tbody th{border-bottom:1px solid var(--color-border);background:0 0;min-width:0;padding:16px}.admin-table tbody td{border-bottom:1px solid var(--color-border);grid-template-columns:5rem minmax(0,1fr);gap:12px;padding:12px 16px;display:grid}.admin-table tbody td:last-child{border-bottom:0}.admin-table tbody td:before{color:var(--color-text-muted);content:attr(data-label);letter-spacing:.06em;text-transform:uppercase;font-size:.75rem;font-weight:700}.admin-table tbody td[data-label=Review]{display:block}.admin-table tbody td[data-label=Review]:before{margin-bottom:8px;display:block}.admin-review-cell{min-width:0}.admin-review-evidence__body dl>div{grid-template-columns:minmax(0,1fr)}}.visually-hidden{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.lesson-reader{max-width:var(--layout-article);margin:0 auto;padding:48px 24px 96px}.lesson-reader__header{border-bottom:1px solid var(--color-border-strong);margin-bottom:32px;padding-bottom:32px}.lesson-reader__body a,.lesson-route-state a:not(.primary-link){color:var(--color-blue-text);text-underline-offset:.16em;text-decoration-thickness:1px}.lesson-document__concept-link{-webkit-text-decoration-color:var(--color-blue-text);-webkit-text-decoration-color:var(--color-blue-text);-webkit-text-decoration-color:var(--color-blue-text);text-decoration-color:var(--color-blue-text)}@supports (color:color-mix(in lab, red, red)){.lesson-document__concept-link{-webkit-text-decoration-color:color-mix(in srgb, var(--color-blue-text) 45%, transparent);-webkit-text-decoration-color:color-mix(in srgb, var(--color-blue-text) 45%, transparent);-webkit-text-decoration-color:color-mix(in srgb, var(--color-blue-text) 45%, transparent);text-decoration-color:color-mix(in srgb, var(--color-blue-text) 45%, transparent)}}.lesson-document__concept-link:hover{text-decoration-color:currentColor}.lesson-reader__meta{color:var(--color-text-muted);font-variant-numeric:tabular-nums;letter-spacing:.02em;flex-wrap:wrap;align-items:center;gap:8px 16px;margin:18px 0 0;font-size:.75rem;font-weight:600;display:flex}.lesson-reader__meta span+span:before{color:var(--color-border-strong);content:"·";margin-right:16px}.lesson-reader__meta time{letter-spacing:.02em;font-weight:600}.lesson-reader h1{font-family:var(--font-body), var(--font-japanese), system-ui, sans-serif;letter-spacing:-.02em;overflow-wrap:anywhere;margin:0;font-size:clamp(1.5rem,3.2vw,2.125rem);font-weight:650;line-height:1.2}.lesson-reader__description{color:var(--color-text-muted);margin:16px 0 0;font-size:clamp(1rem,1.8vw,1.125rem);line-height:1.6}.lesson-reader__body,.lesson-document{min-width:0}.lesson-document__paragraph,.lesson-section p,.lesson-correction p{overflow-wrap:anywhere;font-size:1.0625rem;line-height:1.92}.lesson-document__paragraph{margin:0 0 24px}.lesson-document__lede{color:var(--color-ink);margin-bottom:28px;font-size:clamp(1.0625rem,2vw,1.25rem);font-weight:450;line-height:1.82}.lesson-document__heading,.lesson-section h2,.lesson-correction h2,.lesson-relations h2{font-family:var(--font-body), var(--font-japanese), system-ui, sans-serif;overflow-wrap:anywhere;margin:36px 0 14px;font-size:clamp(1.25rem,2.2vw,1.5rem);font-weight:650;line-height:1.3}.lesson-document h3,.lesson-document h4,.lesson-document h5,.lesson-document h6,.lesson-section h3,.lesson-relations h3{font-family:var(--font-body), var(--font-japanese), system-ui, sans-serif;overflow-wrap:anywhere;margin:28px 0 12px;font-size:1.125rem;font-weight:650;line-height:1.4}.lesson-document ruby,.lesson-reference ruby,.lesson-meaning-map ruby{font-family:var(--font-japanese), system-ui, sans-serif;ruby-align:center;ruby-position:over}.lesson-document rt,.lesson-reference rt,.lesson-meaning-map rt{font-size:.5em;line-height:1}:root[data-reading-mode=romaji] .lesson-document rt,:root[data-reading-mode=romaji] .lesson-reference rt,:root[data-reading-mode=romaji] .lesson-meaning-map rt,:root[data-reading-mode=romaji] .lesson-example rt{font-family:var(--font-body), system-ui, sans-serif;letter-spacing:.01em;font-size:.65em}:root[data-reading-mode=romaji] .lesson-document__paragraph,:root[data-reading-mode=romaji] .lesson-document__lede,:root[data-reading-mode=romaji] .lesson-section p,:root[data-reading-mode=romaji] .lesson-reference__list dt,:root[data-reading-mode=romaji] .lesson-reference__list dd,:root[data-reading-mode=romaji] .lesson-meaning-map__term,:root[data-reading-mode=romaji] .lesson-meaning-map__japanese,:root[data-reading-mode=romaji] .lesson-self-check__prompt,:root[data-reading-mode=romaji] .lesson-self-check__choices,:root[data-reading-mode=romaji] .lesson-comparison dd,:root[data-reading-mode=romaji] .lesson-comparison__summary,:root[data-reading-mode=romaji] .lesson-callout p,:root[data-reading-mode=romaji] .lesson-table th,:root[data-reading-mode=romaji] .lesson-table td{line-height:2.55}:root[data-reading-mode=romaji] .lesson-example__japanese{font-size:clamp(1.3rem,2.8vw,1.55rem);line-height:2.7}:root[data-reading-mode=romaji] .lesson-meaning-map__term{font-size:1.45rem!important;line-height:2.55!important}:root[data-reading-mode=romaji] .lesson-meaning-map__japanese{font-size:1.25rem!important;line-height:2.55!important}:root[data-reading-mode=romaji] .lesson-document__paragraph,:root[data-reading-mode=romaji] .lesson-document__lede,:root[data-reading-mode=romaji] .lesson-section p,:root[data-reading-mode=romaji] .lesson-reference__list dt,:root[data-reading-mode=romaji] .lesson-self-check__prompt,:root[data-reading-mode=romaji] .lesson-self-check__choices,:root[data-reading-mode=romaji] .lesson-comparison__summary,:root[data-reading-mode=romaji] .lesson-callout p,:root[data-reading-mode=romaji] .lesson-table th,:root[data-reading-mode=romaji] .lesson-table td{font-size:1.125rem}:root[data-reading-mode=romaji] .lesson-comparison dd{font-size:1.35rem;line-height:2.7}:root[data-reading-mode=romaji] .lesson-comparison__items{gap:20px;margin-bottom:32px}:root[data-reading-mode=romaji] .lesson-comparison__items>div{padding:22px 16px 20px}:root[data-reading-mode=romaji] .lesson-document__lede{font-size:clamp(1.1rem,2.3vw,1.3rem)}.romaji-line{display:inline}.romaji-word{text-align:center;white-space:nowrap;padding-top:.35em;display:inline-block}:root[data-reading-mode=romaji] .romaji-word{padding-inline:.06em}.romaji-gap{white-space:pre;display:inline}.lesson-example{border-left:3px solid var(--color-blue-strong);margin:32px 0;padding:4px 0 4px 20px}.lesson-example__japanese{font-family:var(--font-japanese), system-ui, sans-serif;overflow-wrap:anywhere;margin:0;font-size:clamp(1.1875rem,2.4vw,1.375rem);font-weight:500;line-height:2.05}.lesson-example__reading,.lesson-example__translation{overflow-wrap:anywhere;margin:8px 0 0;line-height:1.65}.lesson-example__reading{color:var(--color-text-muted);font-size:.875rem}.lesson-example__translation{font-size:1.0625rem}.lesson-callout{background:var(--color-surface-muted);border-left:3px solid var(--color-blue-strong);border-radius:4px 8px 8px 4px;margin:32px 0;padding:16px 20px}.lesson-callout--common-mistake{background:var(--color-orange-soft);border-left-color:var(--color-orange-strong)}.lesson-callout p{margin:0;line-height:1.65}.lesson-callout__label{color:var(--color-text-muted);letter-spacing:.04em;font-weight:700;margin-bottom:6px!important;font-size:.75rem!important}.lesson-comparison{border-block:1px solid var(--color-border-strong);margin-block:40px;padding-block:28px}.lesson-comparison__items{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:0 0 28px;display:grid}.lesson-comparison__items>div{background:var(--color-surface-muted);border-radius:8px;min-width:0;padding:18px 16px 20px}.lesson-comparison dt{color:var(--color-text-muted);letter-spacing:.04em;font-size:.75rem;font-weight:700}.lesson-comparison dd{font-family:var(--font-japanese), system-ui, sans-serif;overflow-wrap:break-word;margin:12px 0 0;font-size:1.25rem;line-height:1.95}.lesson-comparison__summary{overflow-wrap:break-word;margin:0;font-size:1.0625rem;line-height:1.8}.lesson-table-wrap{overscroll-behavior-inline:contain;width:100%;max-width:100%;margin-block:40px;overflow-x:auto}.lesson-table-wrap:focus-visible,.lesson-self-check summary:focus-visible,.primary-button:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}.lesson-table{border-collapse:collapse;width:100%;font-size:1rem}.lesson-table caption{color:var(--color-text-muted);text-align:left;padding-bottom:10px;font-size:.875rem;font-weight:650}.lesson-table th,.lesson-table td{border:1px solid var(--color-border-strong);overflow-wrap:anywhere;text-align:left;vertical-align:top;min-width:9rem;padding:12px 14px}.lesson-table th{background:var(--color-surface-muted)}.lesson-section,.lesson-correction,.lesson-relations{border-top:1px solid var(--color-border-strong);margin-top:48px;padding-top:8px}.lesson-reference__group{margin-top:32px}.lesson-reference__list{margin:0}.lesson-reference__list>div{border-bottom:1px solid var(--color-border);grid-template-columns:minmax(7rem,.8fr) minmax(0,2fr);gap:20px;padding:20px 0;display:grid}.lesson-reference__list>div:last-child{border-bottom:0}.lesson-reference__list dt{overflow-wrap:anywhere;font-size:1.125rem;font-weight:650}.lesson-reference__list dd{overflow-wrap:anywhere;min-width:0;margin:0;line-height:1.65}.lesson-reference__list dd p{margin:0 0 6px;font-size:1rem}.lesson-reference__label{color:var(--color-text-muted);font-size:.875rem;font-weight:650}.lesson-reference__detail{color:var(--color-text-muted);margin-top:4px;font-size:.875rem;display:block}.lesson-meaning-map__core{background:var(--color-blue-soft);border:2px solid var(--color-blue-strong);text-align:center;border-radius:12px;width:100%;margin:24px 0;padding:20px}.lesson-meaning-map__core p{margin:8px 0 0}.lesson-meaning-map__term{font-weight:650;font-size:1.3125rem!important;line-height:1.9!important}.lesson-meaning-map__caveat{color:var(--color-text-muted);text-align:center;max-width:36rem;margin:0 auto 24px}.lesson-meaning-map__branches{counter-reset:meaning-branch;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:0;padding:0;list-style:none;display:grid}.lesson-meaning-map__branches>li{background:var(--color-surface);border:1px solid var(--color-border-strong);counter-increment:meaning-branch;border-radius:12px;min-width:0;padding:20px}.lesson-meaning-map__branches h3{margin:0 0 12px}.lesson-meaning-map__branches h3:before{background:var(--color-orange-soft);color:var(--color-orange-strong);content:counter(meaning-branch);vertical-align:.15em;border-radius:999px;place-items:center;width:28px;height:28px;margin-right:10px;font-size:.875rem;display:inline-grid}.lesson-meaning-map__branches p{margin:8px 0 0;font-size:1rem}.lesson-meaning-map__japanese{font-family:var(--font-japanese), system-ui, sans-serif;font-weight:550;font-size:1.25rem!important;line-height:1.9!important}.lesson-meaning-map__english{color:var(--color-orange-strong);font-weight:650}.lesson-meaning-map__compact{margin:24px 0}.lesson-meaning-map__compact>div{border-bottom:1px solid var(--color-border);grid-template-columns:minmax(7rem,.5fr) minmax(0,2fr);gap:16px;padding:12px 0;display:grid}.lesson-meaning-map__compact dd{overflow-wrap:anywhere;margin:0}.lesson-self-check__questions{margin:0;padding:0;list-style:none}.lesson-self-check__questions>li+li{border-top:1px solid var(--color-border);margin-top:32px;padding-top:32px}.lesson-self-check__prompt{font-weight:650}.lesson-self-check__choices{margin-block:16px;padding-inline-start:1.5rem;line-height:1.65;list-style:upper-alpha}.lesson-self-check__choices>li::marker{color:var(--color-blue-text);font-weight:700}.lesson-self-check details{background:var(--color-surface-muted);border-radius:8px;margin-top:20px;padding:12px 16px}.lesson-self-check summary{color:var(--color-blue-text);cursor:pointer;min-height:44px;padding-block:10px;font-weight:650}.lesson-self-check__answer{flex-wrap:wrap;align-items:baseline;gap:.5rem .75rem;display:flex}.lesson-self-check__answer-letter{background:var(--color-blue-strong);color:var(--color-on-primary);letter-spacing:0;border-radius:6px;justify-content:center;align-items:center;min-width:2rem;min-height:2rem;padding:.35rem .55rem;font-size:1.125rem;font-weight:700;line-height:1;display:inline-flex}.lesson-self-check details p{margin:12px 0;font-size:1rem}.lesson-correction{border-left:3px solid var(--color-orange-strong);border-top:0;padding:2px 0 2px 20px}.lesson-correction h2{margin-top:0;font-size:1.375rem}.lesson-relations__group{margin-top:32px}.lesson-relations ul{margin:0;padding:0;list-style:none}.lesson-relations li{border-bottom:1px solid 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var(--color-blue-strong);color:#fff;cursor:pointer;font:inherit;border-radius:8px;min-height:44px;padding:10px 18px;font-weight:650}.lesson-loading{max-width:var(--layout-article);min-height:55vh;margin:0 auto;padding:72px 24px}.lesson-loading>span{color:var(--color-text-muted);margin-bottom:32px;font-size:.875rem;display:block}.lesson-loading__title,.lesson-loading__line{background:var(--color-surface-muted);border-radius:4px}.lesson-loading__title{max-width:30rem;height:48px;margin-bottom:40px}.lesson-loading__line{height:18px;margin-bottom:14px}.lesson-loading__line--short{width:68%}@media (max-width:40rem){.lesson-reader{padding:32px 16px 64px}.lesson-reader__header{margin-bottom:24px;padding-bottom:24px}.lesson-reader__meta{gap:6px 10px}.lesson-reader__meta span+span:before{margin-right:10px}.lesson-comparison__items,.lesson-meaning-map__branches{grid-template-columns:minmax(0,1fr)}.lesson-reference__list>div,.lesson-meaning-map__compact>div{grid-template-columns:minmax(0,1fr);gap:8px}.lesson-route-state{padding:64px 16px}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}