:root{--paper:#fbfaf6;--ink:#252c2b;--muted:#626b67;--line:#dcded6;--green:#234f43;--wash:#eef2eb;--body:1.2rem}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-reading)}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--green)}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #b36a28;outline-offset:5px}.skip{position:absolute;top:-60px}.skip:focus{top:10px;z-index:99;background:white;padding:10px}header{height:88px;padding:0 5%;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:var(--paper)}.brand{text-decoration:none;font-family:var(--font-reading);font-size:1.3rem;font-weight:600;display:flex;gap:14px;align-items:center}.mark{font-family:var(--font-reading);background:var(--green);color:white;width:34px;height:38px;display:grid;place-items:center;font-size:26px;border-radius:2px}.toplinks{display:flex;gap:30px;font-size:.9rem}.toplinks a{text-decoration:none}.layout{max-width:1400px;margin:auto;display:grid;grid-template-columns:240px minmax(0,750px) 180px;gap:55px;padding:50px 4% 0}.rail{font-size:.875rem;position:sticky;top:35px;align-self:start}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:.75rem;font-weight:600;color:var(--muted)}.rail h2{font-family:var(--font-reading);font-size:1.5rem;font-weight:500;margin:12px 0 28px}.lessons{list-style:none;padding:0;margin:0 0 40px}.lessons a{display:flex;gap:13px;padding:15px 10px;text-decoration:none;line-height:1.6;border-left:2px solid transparent}.lessons a.active{border-color:var(--green);background:var(--wash);color:var(--green)}.num{font-size:.8rem;opacity:.65}.railnote{border-top:1px solid var(--line);padding-top:24px;color:var(--muted);line-height:1.7;font-size:.85rem}.crumb{font-size:.8rem;color:var(--muted);margin-bottom:30px}.crumb span{padding:0 10px;color:#93998f}.meta{display:flex;align-items:center;gap:13px;font-size:.8rem;color:var(--muted);margin:20px 0 34px}.pill{background:var(--wash);color:var(--green);padding:5px 10px;border-radius:3px}h1{font-family:var(--font-reading);font-size:clamp(2.8rem,4.5vw,4.2rem);line-height:1.15;letter-spacing:-.02em;font-weight:500;margin:17px 0 20px}.dek{font-family:var(--font-reading);font-size:1.3rem;color:var(--muted);line-height:1.65;margin:0}.intro{border-top:1px solid var(--line);padding-top:30px}.prose{font-family:var(--font-reading);font-size:var(--body);line-height:1.85}.prose p{margin:0 0 23px}.prose h2{font-size:1.75rem;line-height:1.35;font-weight:500;letter-spacing:-.02em;margin:48px 0 20px}.prose strong{font-weight:600}.idea{margin:34px 0;padding:27px 30px;background:var(--wash);border-left:3px solid var(--green)}.idea p{font-size:1.45rem;line-height:1.55;margin:9px 0 0}.prose .eyebrow{font-family:var(--font-reading)}.aside{font-size:.8rem;position:sticky;top:35px;align-self:start;padding-top:2px}.aside nav{display:grid;gap:16px;border-left:1px solid var(--line);padding-left:18px;margin:21px 0 35px}.aside a{text-decoration:none;color:var(--muted);line-height:1.5}.typecontrols{display:flex;gap:6px;margin-top:14px}.typecontrols button{border:1px solid var(--line);background:transparent;border-radius:3px;padding:7px 12px;color:var(--ink)}.typecontrols button[aria-pressed=true]{background:var(--green);color:white}.pause{border:1px solid #b9c6b5;padding:28px 30px;margin:40px 0;background:#f4f6ef}.pause h2{margin:10px 0 15px}.pause p:last-child{margin-bottom:0}.pause .eyebrow{color:var(--green)}details{font-family:var(--font-reading);font-size:.95rem;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:19px 0;margin:35px 0;line-height:1.75}summary{cursor:pointer;font-weight:600}details p{margin:18px 0!important}details li{margin:12px 0}.resources{margin-top:55px}.resources h2{margin-bottom:10px}.resources>p{font-size:1rem;color:var(--muted)}.resource{display:grid;grid-template-columns:46px 1fr;gap:17px;border-top:1px solid var(--line);padding:24px 0;font-family:var(--font-reading)}.resource-icon{width:42px;height:48px;border:1px solid var(--line);display:grid;place-items:center;font-family:var(--font-reading);font-size:1.5rem;color:var(--green)}.resource h3{font-family:var(--font-reading);font-size:1.2rem;margin:6px 0 10px;font-weight:500;line-height:1.5}.resource p{font-size:.95rem;line-height:1.7;margin:0 0 12px}.resource .notice{color:var(--muted);font-size:.85rem}.next{display:block;text-decoration:none;background:var(--green);color:white!important;padding:30px 34px;margin:50px 0}.next strong{display:block;font-family:var(--font-reading);font-size:1.65rem;font-weight:400;margin-top:10px;line-height:1.4}.next .eyebrow{color:#d6e3d8}footer{max-width:1220px;margin:50px auto 0;border-top:1px solid var(--line);padding:25px 30px 40px;display:flex;justify-content:space-between;font-size:.8rem;color:var(--muted)}.progress{position:fixed;top:0;left:0;height:3px;background:var(--green);width:0;z-index:50}.mobilecontents{display:none}body.large{--body:1.4rem}@media(min-width:1500px){.layout{gap:65px}}@media(max-width:1150px){.layout{grid-template-columns:200px minmax(0,700px);gap:40px;max-width:1100px}.aside{display:none}}@media(max-width:760px){header{height:74px;padding:0 22px}.brand{font-size:1.05rem;gap:10px}.toplinks{gap:15px;font-size:.8rem}.toplinks a:last-child{display:none}.layout{display:block;padding:25px 24px 0}.rail{display:none}.mobilecontents{display:block;margin:0 0 25px}.mobilecontents a{display:block;padding:10px 0}.crumb{display:none}h1{font-size:2.8rem}.dek{font-size:1.15rem}.meta{margin-bottom:25px}.prose{font-size:var(--body);line-height:1.8}.idea,.pause{padding:22px}.idea p{font-size:1.3rem}.prose h2{font-size:1.55rem}.next{padding:26px}footer{gap:20px;line-height:1.7;flex-wrap:wrap}.resource{grid-template-columns:36px 1fr;gap:15px}.resource-icon{width:34px}.toplinks{max-width:80px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{header,.rail,.aside,.mobilecontents,.progress,.next{display:none}.layout{display:block;padding:0}.prose{font-size:12pt}body{background:white}details{display:block}a{color:black}}

/* A quiet, single-column reading edition. */
body{font-family:var(--font-reading)}.layout{display:block;max-width:760px;padding:36px 28px 0;margin:auto}.brand,.prose,.dek,h1,.prose h2,.resource h3,.next strong{font-family:inherit}.brand{font-size:1.1rem;font-weight:600}.mark{display:none}header{height:76px;padding:0 max(28px,calc((100vw - 1120px)/2))}.toplinks{font-size:.875rem}.mobilecontents{display:block;margin:0 0 36px;padding:13px 0;border-top:0;font-size:.9rem}.mobilecontents summary{font-weight:400;color:var(--muted)}.mobilecontents .lessons{margin:14px 0 0}.eyebrow{text-transform:none;letter-spacing:0;font-size:.875rem;font-weight:400}h1{font-size:2.75rem;font-weight:600;letter-spacing:-.02em;line-height:1.2;margin:16px 0}.dek{font-size:1.125rem;line-height:1.6;max-width:590px}.prose{font-size:var(--body);line-height:1.8}.prose h2{font-size:1.6rem;line-height:1.35;letter-spacing:-.02em;font-weight:600;margin:44px 0 18px}.prose p{margin-bottom:23px}.meta{margin:22px 0 26px;gap:14px;font-size:.875rem}.pill{padding:0;background:none;color:var(--muted)}.typecontrols{margin:0 0 0 auto;gap:5px}.typecontrols button{font-size:.875rem;padding:5px 10px}.intro{padding-top:28px}.idea{padding:22px 24px;margin:32px 0}.idea p{font-size:1.25rem;line-height:1.6}.idea .eyebrow,.pause .eyebrow{font-family:inherit}.pause h2{margin-top:10px}.resources>p{font-size:1rem}.resource h3{font-size:1.15rem;font-weight:600}.resource-icon{font-family:inherit}.next strong{font-size:1.35rem}.next{padding:25px 28px}.next .eyebrow{font-size:.875rem}footer{max-width:1120px}.rail,.aside{display:none}@media(max-width:760px){.layout{padding:24px 23px 0}header{padding:0 23px;height:68px}.brand{font-size:1rem}.mobilecontents{margin-bottom:28px}h1{font-size:2.15rem;line-height:1.2}.prose h2{font-size:1.45rem}.prose{font-size:var(--body)}.meta{gap:12px;font-size:.8rem}.typecontrols button{padding:5px 8px}.dek{font-size:1.05rem}.idea p{font-size:1.2rem}.toplinks{max-width:none}}

.backlink{display:inline-block;font-size:.875rem;color:var(--muted);text-decoration:none;margin:0 0 26px}.related{margin:48px 0;border-top:1px solid var(--line)}.related>a{display:block;text-decoration:none}.related strong{display:block;font-size:1.15rem;margin:12px 0}.related span{display:block;font-size:1rem;color:var(--muted);line-height:1.65}.related .all-age{font-size:.95rem;margin-top:22px;color:var(--green);text-decoration:underline}.directory{padding-top:20px}.directory h1{font-size:2.5rem}.directory form{margin:35px 0 25px}.directory label{display:block;font-size:.875rem;margin-bottom:9px}.directory input,.directory select{font:inherit;font-size:1rem;border:1px solid #a9b3ac;background:var(--paper);color:var(--ink);padding:13px 14px;border-radius:3px;width:100%}.filters{display:grid;grid-template-columns:1fr 1fr auto;gap:17px;align-items:end;margin-top:20px}.directory button{font-size:.875rem;padding:14px 10px;background:none;border:1px solid var(--line);border-radius:3px;color:var(--green)}#result-count{font-size:.875rem;color:var(--muted)}.article-result{display:block;text-decoration:none;padding:28px 0;border-top:1px solid var(--line)}.article-result h2{font-size:1.4rem;font-weight:600;line-height:1.4;letter-spacing:-.02em;margin:10px 0}.article-result p{font-size:1.05rem;line-height:1.7;margin:0 0 14px;color:var(--muted)}.readlink{font-size:.9rem;color:var(--green)}.directory-note{font-size:.875rem;line-height:1.7;border-top:1px solid var(--line);padding-top:25px;margin-top:12px;color:var(--muted)}[hidden]{display:none!important}input:focus-visible,select:focus-visible{outline:3px solid #b36a28;outline-offset:3px}@media(max-width:760px){.directory h1{font-size:2rem}.filters{grid-template-columns:1fr 1fr}.filters button{grid-column:1/-1;justify-self:start;padding:9px 14px}.backlink{margin-bottom:20px}}

:root{--font-reading:"Newsreader",Georgia,serif}body{font-family:var(--font-reading)}.prose .eyebrow,.resource,details{font-family:var(--font-reading)}h1{letter-spacing:-.02em}.prose h2{letter-spacing:-.015em}.prose{line-height:1.75}.brand{letter-spacing:-.015em}

/* Minimal, consistent typography. */
h1,.prose h2,.resource h3,.article-result h2,.brand{font-weight:500}.prose h2{font-size:1.5rem}.resource h3,.article-result h2{font-size:1.25rem}.idea p{font-size:var(--body);margin:0}.resource-meta,.article-meta{font-size:.875rem!important;color:var(--muted);line-height:1.6}.article-meta{display:block;margin:0 0 14px}.resource h3{margin-top:0}.pause h2{margin-top:0}.prose strong{font-weight:600}

@media(max-width:760px){.toplinks a:last-child{display:inline}}

.toplinks{align-items:center}.search-trigger{border:0;background:transparent;color:inherit;font:inherit;padding:0}.search-open{overflow:hidden}#search-dialog{width:min(640px,calc(100% - 32px));max-height:80svh;overflow-y:auto;margin:12svh auto auto;padding:30px;border:1px solid var(--line);border-radius:6px;background:var(--paper);color:var(--ink);font-family:var(--font-reading)}#search-dialog::backdrop{background:rgba(25,35,31,.4)}.search-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.search-heading h2{font-size:1.4rem;font-weight:500;letter-spacing:-.015em;margin:0}#search-close{border:0;background:none;color:var(--muted);padding:8px 0;font-size:.95rem}#search-dialog label{display:block;font-size:1rem;margin-bottom:10px}#site-search{width:100%;font:inherit;font-size:1.1rem;padding:13px;border:1px solid #9ca9a0;border-radius:3px;background:var(--paper);color:var(--ink)}#search-status{font-size:.875rem;color:var(--muted);line-height:1.6;margin:18px 0}.search-result{display:grid;gap:7px;text-decoration:none;border-top:1px solid var(--line);padding:20px 0}.search-result strong{font-weight:500;font-size:1.15rem;line-height:1.4}.search-result span{font-size:1rem;line-height:1.6;color:var(--muted)}.search-result .search-age{font-size:.875rem}#search-dialog a:hover strong{text-decoration:underline}@media(max-width:760px){.toplinks{gap:16px;max-width:none}#search-dialog{padding:22px;margin-top:8svh;max-height:84svh}.search-heading h2{font-size:1.25rem}}
.source-notes{margin-top:56px;border-top:1px solid var(--line);padding-top:12px}.source-notes ol{padding-left:24px}.source-notes li{padding:12px 0 18px;scroll-margin-top:30px;font-size:1rem;line-height:1.65}.source-notes li p,.source-notes .review-date{font-size:.875rem;line-height:1.7;color:var(--muted);margin:9px 0 0}.source-notes a{overflow-wrap:anywhere}.source-notes li:target{background:var(--wash);outline:8px solid var(--wash)}.prose a[href^="#source-"]{font-family:inherit;font-size:.875rem;white-space:nowrap;color:var(--green);text-decoration:none}.related-age{font-size:.875rem!important}.filters{grid-template-columns:1fr 1fr}.filters>button{justify-self:start;align-self:end}.related>a{padding-bottom:12px}.review-date{margin-bottom:20px!important}@media(max-width:480px){.filters{grid-template-columns:1fr}.source-notes ol{padding-left:20px}}@media print{.source-notes{break-before:page}dialog{display:none}}

/* One editorial family, tuned for continuous reading and quiet controls. */
body{font-optical-sizing:auto;font-kerning:normal}
.prose{line-height:var(--reader-line-height,1.82)}
.prose p{margin-bottom:30px}
.prose a{overflow-wrap:anywhere}
.prose h2{margin-top:54px;margin-bottom:24px}
.layout{max-width:calc(var(--reader-width,660px) + 56px)}
.brand{font-size:1.25rem;letter-spacing:0}
.toplinks{font-size:1rem}
@media(max-width:760px){.brand{font-size:1.125rem}.toplinks{gap:16px}}

.home-reading #introduction{width:min(100% - 48px,var(--reader-width,660px));margin:64px auto 140px}
.home-reading h1{margin:0 0 16px}
.reading-time{margin:0 0 42px;color:var(--muted);font-size:.875rem;line-height:1.5}
.home-reading .prose img{display:block;max-width:100%;height:auto;margin:28px auto 12px}
@media(max-width:760px){.home-reading #introduction{width:min(100% - 46px,var(--reader-width,660px));margin:40px auto 120px}}

body{--body:calc(1.2rem * var(--reader-scale,1))}
body[data-reader-theme="sepia"]{--paper:#f5efdf;--ink:#382f25;--muted:#655b4d;--line:#d4c8ae;--green:#665947;--wash:#e9decb}
body[data-reader-theme="night"]{--paper:#202725;--ink:#e8ede7;--muted:#a9b8af;--line:#47554d;--green:#acd1b6;--wash:#303c35}
.reader-trigger{border:0;background:transparent;color:inherit;font:inherit;padding:0;min-width:28px;text-align:right}
#reader-dialog{position:fixed;inset:78px 5% auto auto;width:min(420px,calc(100% - 32px));max-height:calc(100svh - 94px);overflow:auto;margin:0;padding:26px;border:1px solid var(--line);border-radius:7px;background:var(--paper);color:var(--ink);font-family:var(--font-reading);box-shadow:0 20px 60px rgba(20,30,24,.13)}
#reader-dialog::backdrop{background:rgba(20,30,24,.26)}
.reader-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:8px}
.reader-heading h2{font-size:1.45rem;font-weight:500;line-height:1.3;margin:0}
#reader-close{border:0;background:none;color:var(--muted);padding:8px 0;font-size:.95rem}
.reader-setting{border:0;border-top:1px solid var(--line);padding:19px 0 0;margin:18px 0 0;min-width:0}
.reader-setting>span,.reader-setting legend{font-size:1rem;padding:0;margin:0 0 12px}
.reader-setting legend{float:left;width:100%}.reader-setting legend+.reader-choices{clear:both}
.reader-size-controls{display:grid;grid-template-columns:52px 1fr 52px;gap:10px;align-items:center}
.reader-size-controls button,.reader-choices button{border:1px solid var(--line);border-radius:3px;background:transparent;color:var(--ink);font:inherit;min-height:42px;padding:8px 10px}
.reader-size-controls output{text-align:center;font-size:1rem}
.reader-choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}
.reader-choices button{font-size:.9rem;line-height:1.25}
.reader-choices button[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:var(--paper)}
.reader-reset{border:0;background:none;color:var(--muted);text-decoration:underline;text-underline-offset:4px;font:inherit;font-size:.9rem;padding:14px 0 0;margin-top:12px}
@media(max-width:760px){#reader-dialog{inset:68px 16px auto auto;width:calc(100% - 32px);padding:22px}.toplinks{gap:13px}}


.video-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:2px 0 34px}
.video-pair iframe{display:block;width:100%;aspect-ratio:16/9;height:auto;border:0;background:var(--wash);border-radius:3px}
@media(max-width:600px){.video-pair{grid-template-columns:1fr;gap:16px}}

/* Reading progress remains one continuous object, outside the reading column. */
.layout:has(article.prose){padding-bottom:140px}
.reading-mosaic{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));width:116px;height:116px;z-index:20;pointer-events:none;contain:layout paint}
.reading-mosaic[hidden]{display:none}
.reading-mosaic svg{display:block;width:100%;height:100%;overflow:visible;filter:drop-shadow(0 3px 3px #182f2318)}
.mosaic-bed{fill:var(--wash);stroke:var(--line);stroke-width:1}
.mosaic-pieces path{stroke:var(--paper)}
@media(max-width:900px){.reading-mosaic{width:76px;height:76px;right:6px;bottom:6px;background:var(--paper);border-radius:50%}}
@media print{.reading-mosaic{display:none}}

.language-trigger{display:grid;place-items:center;border:0;background:none;color:inherit;padding:0;width:24px;height:28px}
.language-trigger svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.3}
#language-dialog{width:min(460px,calc(100% - 32px));max-height:80svh;overflow:auto;margin:12svh auto auto;padding:28px;border:1px solid var(--line);border-radius:6px;background:var(--paper);color:var(--ink)}
#language-dialog::backdrop{background:#19231f66}
#language-close{border:0;background:none;color:var(--muted);padding:8px 0;font-size:.95rem}
#language-dialog label{display:block;margin-bottom:10px}
#language-filter{width:100%;font:inherit;padding:12px;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:3px}
.language-list{display:grid;margin-top:18px}
.language-list a{padding:14px 4px;text-decoration:none;border-bottom:1px solid var(--line);font-size:1.1rem;text-align:start}
.language-list a[aria-current=page]{color:var(--green);font-weight:500}
.language-list a[aria-current=page]::after{content:'✓';float:inline-end}
.language-list .preferred-language{order:-1}
.translation-note{font-size:.875rem;color:var(--muted);line-height:1.6;margin:-18px 0 32px}
:lang(ja){line-break:strict;word-break:normal}
html[lang=ja]{--font-reading:'Noto Serif CJK JP','Yu Mincho','Hiragino Mincho ProN',serif}
html[dir=rtl] .prose,html[dir=rtl] h1,html[dir=rtl] .dek{text-align:start}
@media(max-width:480px){header{padding-inline:18px}.toplinks{gap:12px}.brand{font-size:1.05rem}.toplinks>a{font-size:.9rem}.search-trigger{font-size:.9rem}}

.nav-search-icon{display:none;width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.4}
.brand{white-space:nowrap}
@media(max-width:900px){
  body:has(.reading-mosaic:not([hidden]))::after{content:'';position:fixed;inset:auto 0 0;height:88px;background:linear-gradient(to bottom,transparent,var(--paper) 16px);z-index:19;pointer-events:none}
}
@media(max-width:480px){.nav-search-label{display:none}.nav-search-icon{display:block}.search-trigger{display:grid;place-items:center;width:24px;height:28px}}
@media print{body:has(.reading-mosaic)::after{display:none}}

/* Revision controls stay within the existing metadata hierarchy. */
.version-history{font-size:.875rem;line-height:1.6;border:0;padding:0;margin:-12px 0 34px;color:var(--muted)}
.version-history ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px}
.version-history li{margin:0}
.version-history a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:8px 16px;border:1px solid var(--line);border-radius:999px;color:var(--muted);text-decoration:none;line-height:1.2}
.version-history a:hover{background:var(--wash);color:var(--ink);border-color:var(--muted)}
.version-history a[aria-current=page]{background:var(--green);border-color:var(--green);color:var(--paper);font-weight:500}
.version-notice{font-size:.875rem;line-height:1.7;margin:-12px 0 28px;color:var(--muted)}
.version-notice+.version-history{margin-top:0}
.version-history+.translation-note{margin-top:-18px}
.article-video{margin:26px 0 38px}
.article-video iframe{display:block;border:0;width:100%;height:auto;aspect-ratio:16/9;background:var(--wash)}
@media print{.version-history{display:none}}
.quote-list{list-style:none;padding:0;margin:36px 0 0}.quote-list li{border-top:1px solid var(--line);padding:26px 0 8px}.quote-list blockquote{margin:0}.quote-list blockquote p{margin:0 0 10px;font-size:1.4rem;line-height:1.5}.quote-by{font-size:.875rem;color:var(--muted);margin:0 0 18px!important}.quote-by a{color:inherit}