* { box-sizing: border-box; }
html { background: var(--lx-canvas, #fff); color: var(--lx-text, #1c1d1b); scroll-padding-top: 90px; }
body { margin: 0; font-family: var(--lx-font-body, sans-serif); font-size: var(--lx-font-size, 16px); line-height: var(--lx-line-height, 1.8); -webkit-font-smoothing: antialiased; font-synthesis: none; }
[hidden] { display: none !important; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; touch-action: manipulation; }
button:disabled { cursor: default; }
::selection { background: var(--lx-accent); color: var(--lx-on-accent); }
input, textarea { caret-color: var(--lx-accent); }
html { scrollbar-color: var(--lx-rule) var(--lx-canvas); }
a { color: var(--lx-accent); text-underline-offset: 4px; }
:focus-visible { outline: 2px solid var(--lx-text); outline-offset: 4px; }
h1,h2,h3 { font-family: var(--lx-font-heading); font-weight: 500; line-height: 1.45; text-wrap: balance; }
h1 { font-size: clamp(32px, 5vw, var(--lx-heading-size)); margin: 0 0 22px; letter-spacing: -.025em; }
h2 { font-size: 25px; margin: 0 0 16px; }
h3 { font-size: 20px; margin: 0 0 10px; }
p { margin: 0 0 18px; }
.page, .site-footer { width: min(var(--lx-content-width), calc(100% - 72px)); margin: auto; }
.preview-skip { position: fixed; top: 10px; left: 16px; z-index: 20; padding: 10px 14px; background: var(--lx-surface); transform: translateY(-160%); }
.preview-skip:focus { transform: none; }
.site-header { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 12px max(36px, calc((100% - var(--lx-content-width)) / 2)); border-bottom: var(--lx-rule-width) solid var(--lx-rule); position: sticky; top: 0; z-index: 5; background: var(--lx-canvas); }
.brand { display: inline-flex; align-items: center; gap: 7px; border: 0; background: transparent; padding: 0; min-height: 44px; min-width: 56px; text-align: left; color: var(--lx-muted); font-family: "Iowan Old Style", Georgia, serif; font-size: 14px; letter-spacing: .02em; }
.site-header nav { display: flex; gap: 20px; align-items: center; }
.site-header nav button { display: inline-flex; align-items: center; gap: 6px; background: transparent; border: 0; padding: 8px 0; font-family: var(--lx-font-ui); font-size: 13px; color: var(--lx-muted); min-height: 44px; }
.site-header .action-icon { width: 18px; height: 18px; flex-basis: 18px; }
.site-header nav button:hover, .site-header nav button[aria-current] { color: var(--lx-accent); }
.secondary { color: var(--lx-muted); }
.small { font-family: var(--lx-font-ui); font-size: 12px; }
.primary, .secondary-button, .text-link { display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-family: var(--lx-font-ui); font-size: 14px; font-weight: 400; min-height: 44px; line-height: 1.4; }
.primary { padding: 12px 18px; background: var(--lx-accent); color: var(--lx-on-accent); border: 1px solid var(--lx-accent); border-radius: var(--lx-radius); }
.secondary-button { border: var(--lx-control-line-width) solid var(--lx-control-line); background: var(--lx-surface); padding: 11px 15px; color: var(--lx-text); border-radius: var(--lx-radius); }
.text-link { background: transparent; border: 0; color: var(--lx-accent); padding: 10px 0; text-decoration: underline; text-underline-offset: 6px; }
.action-icon { width: 19px; height: 19px; flex: 0 0 19px; overflow: visible; }
.icon-glyph, .icon-glyph path { transform-box: fill-box; transform-origin: center; }
.bookmark-fill { fill: currentColor; stroke: none; opacity: 0; }
[aria-pressed="true"] .bookmark-fill { opacity: 1; }
.completion-check { stroke-dasharray: 1; stroke-dashoffset: 0; }
[data-button-motion="subtle"] .action-icon, [data-button-motion="subtle"] .action-icon * { transition: transform 180ms cubic-bezier(.16,1,.3,1), opacity 180ms ease; }
[data-button-motion="subtle"] button:active .action-icon { transform: scale(.94); }
[data-button-motion="subtle"] .completed .completion-check { animation: draw-check 280ms ease both; }
@keyframes draw-check { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
[data-button-motion="subtle"] button:focus-visible .icon-home .icon-glyph { transform: translateY(-1px); }
[data-button-motion="subtle"] button:focus-visible .icon-practice .practice-tube { transform: translate(1px,-1px); }
[data-button-motion="subtle"] button:focus-visible .icon-search .icon-glyph { transform: rotate(-10deg); }
[data-button-motion="subtle"] button:focus-visible .icon-read .book-page { transform: translateX(1px); }
[data-button-motion="subtle"] button:focus-visible .icon-entry .entry-cell { transform: translate(1px,-1px); }
[data-button-motion="subtle"] button:focus-visible .icon-info .info-dot { transform: translateY(-1px); }
[data-button-motion="subtle"] button:focus-visible .icon-zoom .icon-glyph { transform: scale(1.12); }
[data-button-motion="subtle"] button:focus-visible .icon-reveal .eye-pupil { transform: scaleY(.7); }
[data-button-motion="subtle"] button:focus-visible .icon-translate .translation-part { transform: translateX(1px); }
[data-button-motion="subtle"] button:focus-visible .icon-close .icon-glyph { transform: rotate(90deg); }
[data-button-motion="subtle"] button[aria-pressed="false"]:focus-visible .bookmark-fill { opacity: .25; }
@media (hover: hover) {
  [data-button-motion="subtle"] button:hover .icon-home .icon-glyph { transform: translateY(-1px); }
  [data-button-motion="subtle"] button:hover .icon-practice .practice-tube { transform: translate(1px,-1px); }
  [data-button-motion="subtle"] button:hover .icon-search .icon-glyph { transform: rotate(-10deg); }
  [data-button-motion="subtle"] button:hover .icon-read .book-page { transform: translateX(1px); }
  [data-button-motion="subtle"] button:hover .icon-entry .entry-cell { transform: translate(1px,-1px); }
  [data-button-motion="subtle"] button:hover .icon-info .info-dot { transform: translateY(-1px); }
  [data-button-motion="subtle"] button:hover .icon-zoom .icon-glyph { transform: scale(1.12); }
  [data-button-motion="subtle"] button:hover .icon-reveal .eye-pupil { transform: scaleY(.7); }
  [data-button-motion="subtle"] button:hover .icon-translate .translation-part { transform: translateX(1px); }
  [data-button-motion="subtle"] button:hover .icon-close .icon-glyph { transform: rotate(90deg); }
  [data-button-motion="subtle"] button[aria-pressed="false"]:hover .bookmark-fill { opacity: .25; }
}
.hero { display: grid; grid-template-columns: .8fr 1.2fr; gap: var(--lx-space-3); align-items: center; padding: 24px 0 0; }
.hero h1 { font-size: clamp(28px, 3vw, calc(var(--lx-heading-size) * .72)); line-height: 1.5; margin-bottom: 20px; }
.hero-art { min-width: 0; text-align: center; }
.hero-figure { position: relative; width: 100%; max-width: 590px; aspect-ratio: 5 / 3; overflow: clip; margin-left: auto; }
#line-figure { position: absolute; top: -45%; width: 100%; aspect-ratio: 5 / 4; opacity: 1; transform: scale(1.3); transform-origin: 50% 55%; }
.hairline-play { font-size: 12px; color: var(--lx-muted); margin-top: -4px; }
.hairline-play:disabled { opacity: .6; }
.tools-section { padding: var(--lx-space-2) 0 var(--lx-space-5); scroll-margin-top: 90px; }
.tool-list { display: grid; grid-template-columns: repeat(var(--lx-listing-columns), minmax(0,1fr)); }
.tool { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; padding: var(--lx-space-3) 0; text-align: left; gap: var(--lx-space-2); border: 0; border-top: var(--lx-rule-width) solid var(--lx-rule); background: transparent; color: var(--lx-text); }
.tool:last-child { border-bottom: var(--lx-rule-width) solid var(--lx-rule); }
.tool h2 { font-size: 22px; margin-bottom: 10px; }
.tool p { font-family: var(--lx-font-ui); font-size: 13px; color: var(--lx-muted); margin: 0; }
.tool-action { display: inline-flex; align-items: center; gap: 10px; font-family: var(--lx-font-ui); font-size: 13px; color: var(--lx-accent); text-decoration: underline; text-underline-offset: 6px; white-space: nowrap; }
.tool:hover h2 { color: var(--lx-accent); }
[data-listing="tiles"] .tool-list { gap: var(--lx-space-2); }
[data-listing="tiles"] .tool { grid-template-columns: 1fr; border: var(--lx-rule-width) solid var(--lx-rule); border-radius: var(--lx-radius); background: var(--lx-surface); padding: var(--lx-space-3); gap: 24px; align-content: space-between; }
.home-chapters { overflow-x: clip; overflow-y: visible; }
[data-home-layout="chapters"] .tools-section { display: none; }
[data-home-layout="compact"] .home-chapters { display: none; }
.feature-section { min-height: 78svh; padding: var(--lx-space-5) 0; border-top: var(--lx-rule-width) solid var(--lx-rule); display: flex; align-items: center; }
.feature-inner { width: 100%; display: grid; grid-template-columns: .9fr 1.1fr; gap: var(--lx-space-5); align-items: center; }
.feature-copy h2 { font-size: clamp(27px, 3.2vw, 38px); }
.feature-copy p { font-size: 16px; color: var(--lx-muted); margin: 18px 0 28px; }
.feature-panel { min-width: 0; padding: 0; background: transparent; transform-origin: center; }
.histology-feature .feature-inner { grid-template-columns: .65fr 1.35fr; }
.japanese-feature .feature-inner { grid-template-columns: 1.3fr .7fr; }
.japanese-feature .feature-copy { grid-column: 2; grid-row: 1; }
.japanese-feature .feature-panel { grid-column: 1; grid-row: 1; }
.reader-feature .feature-inner { grid-template-columns: 1fr; gap: 32px; }
.reader-feature .feature-copy { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.reader-feature .feature-copy p { margin-bottom: 0; }
.feature-reading { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
@supports (animation-timeline: view()) {
  [data-home-motion="scroll"] .feature-panel { animation: panel-in linear both; animation-timeline: view(block); animation-range: entry 0% exit 100%; }
  [data-home-motion="scroll"] [data-scale="out"] { animation-name: panel-out; }
}
@keyframes panel-in { from { transform: scale(var(--lx-home-scale-min, .965)); } to { transform: scale(var(--lx-home-scale-max, 1.035)); } }
@keyframes panel-out { from { transform: scale(var(--lx-home-scale-max, 1.035)); } to { transform: scale(var(--lx-home-scale-min, .965)); } }
.sample-label, .sample-source { font-family: var(--lx-font-ui); color: var(--lx-muted); font-size: 12px; margin-bottom: 14px; }
.feature-quiz { font-family: var(--lx-font-histology); line-height: var(--lx-histology-line-height); }
.feature-quiz img { width: 100%; height: auto; max-height: 360px; object-fit: contain; display: block; background: transparent; }
.sample-question h3 { font-family: var(--lx-font-histology-heading); font-size: 19px; margin: 20px 0 8px; }
.sample-question p { font-size: 13px; color: var(--lx-muted); }
.sample-answer { border-top: var(--lx-rule-width) solid var(--lx-rule); padding-top: 14px; font-size: 17px; }
.sample-answer span { display: block; font-size: 14px; color: var(--lx-muted); }
.sample-source { margin: 18px 0 0; font-size: 11px; }
.feature-verb > h3 { font-size: 64px; text-align: center; margin: 30px 0 4px; }
.verb-meaning { text-align: center; font-size: 14px; color: var(--lx-muted); }
.sample-forms { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--lx-space-3); margin-top: 30px; }
.sample-forms div { border-top: var(--lx-rule-width) solid var(--lx-rule); padding: 16px 0; }
.sample-forms span { display: block; font-family: var(--lx-font-ui); color: var(--lx-muted); font-size: 12px; }
.sample-forms strong { font-weight: 400; font-size: 23px; }
.feature-reading { padding: 32px 0; border-top: var(--lx-rule-width) solid var(--lx-rule); }
.feature-reading > div + div { border-left: var(--lx-rule-width) solid var(--lx-rule); padding-left: 36px; }
.feature-reading h3 { font-family: inherit; font-size: 25px; }
.feature-reading p { font-size: 18px; margin-bottom: 0; }
[data-motion-ready="true"] [data-reveal] { transition: opacity 500ms cubic-bezier(.16,1,.3,1), transform 500ms cubic-bezier(.16,1,.3,1); }
[data-motion-ready="true"] [data-reveal]:not(.revealed) { opacity: 0; transform: translateY(10px); }
[data-motion-ready="true"] .feature-section:focus-within [data-reveal] { opacity: 1; transform: none; }
@media (min-width: 900px) and (min-height: 700px) {
  [data-home-motion="scroll"][data-home-sticky="on"] .histology-feature[data-sticky-fit="true"] { display: block; min-height: 140svh; }
  [data-home-motion="scroll"][data-home-sticky="on"] .histology-feature[data-sticky-fit="true"] .feature-inner { position: sticky; top: 100px; }
}
.site-footer { border-top: var(--lx-rule-width) solid var(--lx-rule); padding: var(--lx-space-2) 0; display: flex; justify-content: space-between; align-items: center; gap: 20px; color: var(--lx-muted); font-family: var(--lx-font-ui); font-size: 12px; }
.site-footer .text-link { font-size: 12px; }
.tool-page { padding: var(--lx-space-4) 0 var(--lx-space-5); }
.page-heading h1 { font-size: clamp(27px, 4vw, calc(var(--lx-heading-size) * .75)); }
.page-heading .secondary { font-size: 14px; }
[data-lumus-page="histology"] .tool-page { font-family: var(--lx-font-histology); line-height: var(--lx-histology-line-height); }
[data-lumus-page="histology"] :is(h1,h2,h3) { font-family: var(--lx-font-histology-heading); }
.topic-tabs { display: flex; gap: 22px; border-bottom: var(--lx-rule-width) solid var(--lx-rule); margin: var(--lx-space-3) 0; }
.topic-tabs button { font-family: var(--lx-font-ui); font-size: 14px; background: transparent; border: 0; border-bottom: 2px solid transparent; min-height: 44px; padding: 8px 0; color: var(--lx-muted); }
.topic-tabs .active { color: var(--lx-accent); border-color: var(--lx-accent); }
.quiz { display: grid; grid-template-columns: 1.1fr 1fr; gap: var(--lx-space-3); align-items: start; }
.quiz-visual, .quiz-answer { min-width: 0; }
#zoom-image { width: 100%; padding: 8px; background: #fff; color: #2d2b25; border: 1px solid #696252; border-radius: var(--lx-radius); display: block; cursor: zoom-in; }
#zoom-image img { width: 100%; height: auto; display: block; filter: none; }
.image-zoom-hint { display: flex; justify-content: flex-end; gap: 8px; font-family: var(--lx-font-ui); font-size: 12px; padding: 10px 3px 3px; align-items: center; }
.image-source { font-family: var(--lx-font-ui); font-size: 11px; color: var(--lx-muted); line-height: 1.65; margin-top: 12px; }
.quiz-answer h2 { font-size: 24px; margin-top: 5px; }
.question-number { font-size: 13px; color: var(--lx-muted); margin-bottom: 8px; }
form label { display: block; font-family: var(--lx-font-ui); font-size: 14px; margin-bottom: 8px; }
input { width: 100%; font-family: var(--lx-font-ui); border: var(--lx-control-line-width) solid var(--lx-control-line); background: var(--lx-surface); border-radius: var(--lx-radius); padding: 11px 12px; min-height: 44px; font-size: 16px; }
input::placeholder { color: var(--lx-muted); opacity: 1; }
.quiz-actions { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.feedback { margin: var(--lx-space-2) 0; font-size: 15px; padding: 12px 14px; background: var(--lx-surface); border-left: 3px solid var(--lx-accent); color: var(--lx-text); }
.feedback.success { background: var(--lx-success-surface); color: var(--lx-success); border-color: var(--lx-success); }
.feedback.error { background: var(--lx-error-surface); color: var(--lx-error); border-color: var(--lx-error); }
.state-demo { border-top: var(--lx-rule-width) solid var(--lx-rule); padding-top: 14px; margin: 24px 0 12px; }
.state-demo p { font-family: var(--lx-font-ui); font-size: 12px; color: var(--lx-muted); margin-bottom: 8px; }
.state-demo button { font-family: var(--lx-font-ui); border: 1px solid var(--lx-control-line); background: var(--lx-surface); border-radius: var(--lx-radius); padding: 8px 13px; min-height: 44px; font-size: 13px; }
.search-form { margin: var(--lx-space-4) 0; }
.search-row { display: flex; gap: 10px; }
.search-row input { flex: 1; min-width: 0; }
.search-form .small { margin-top: 10px; }
.verb-heading { display: flex; justify-content: space-between; align-items: start; padding: var(--lx-space-2) 0; gap: 15px; }
:lang(ja), .japanese { font-family: var(--lx-font-japanese); }
:lang(es) { font-family: var(--lx-font-latin); line-height: var(--lx-latin-line-height); }
.verb-heading h2 { font-size: 40px; margin-bottom: 6px; }
.verb-heading h2 span { color: var(--lx-muted); font-size: 16px; margin-left: 20px; }
.verb-heading p { font-family: var(--lx-font-ui); font-size: 14px; margin-bottom: 5px; }
.table-wrap { overflow-x: auto; border-top: var(--lx-rule-width) solid var(--lx-rule); border-bottom: var(--lx-rule-width) solid var(--lx-rule); border-radius: var(--lx-radius); background: var(--lx-surface); }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 18px; }
th,td { padding: var(--lx-space-2); border-bottom: var(--lx-rule-width) solid var(--lx-rule); }
tr:last-child td, tr:last-child th { border-bottom: 0; }
thead th { font-family: var(--lx-font-ui); font-size: 13px; font-weight: 400; color: var(--lx-muted); }
tbody th { font-size: 15px; font-weight: 400; color: var(--lx-muted); width: 23%; }
td:last-child { color: var(--lx-muted); font-family: var(--lx-font-ui); font-size: 14px; }
.empty-state { text-align: center; padding: 10px 0 30px; }
#empty-figure { width: 180px; margin: auto; }
.empty-state h2 { font-size: 23px; }
.empty-state p { color: var(--lx-muted); font-size: 15px; }
.reader-page { padding: var(--lx-space-3) 0 var(--lx-space-5); font-family: var(--lx-font-reader); }
.reader-top { display: flex; justify-content: space-between; align-items: center; gap: 15px; margin-bottom: var(--lx-space-4); }
.reader-top h2 { font-family: var(--lx-font-ui); font-size: 16px; margin: 0; font-weight: 400; }
.reader-languages { display: flex; gap: 8px; }
.reader-languages button { background: transparent; font-family: var(--lx-font-ui); font-size: 13px; border: 0; border-bottom: 1px solid transparent; padding: 8px 9px; min-height: 44px; color: var(--lx-muted); }
.reader-languages button[aria-pressed="true"] { color: var(--lx-accent); border-color: var(--lx-accent); }
.reading { max-width: var(--lx-reading-width); margin: auto; }
.reading h1 { font-size: clamp(29px, 4vw, calc(var(--lx-heading-size) * .75)); }
.article-subtitle { font-family: var(--lx-font-ui); color: var(--lx-muted); font-size: 13px; }
.reader-divider { height: var(--lx-rule-width); background: var(--lx-rule); margin: var(--lx-space-3) 0; }
.passage { margin-bottom: var(--lx-space-3); font-size: 1.1em; }
.passage:has(ruby) { line-height: max(var(--lx-line-height), 2); }
ruby rt { color: var(--lx-muted); font-size: .5em; }
.vocab { font: inherit; color: var(--lx-accent); background: transparent; border: 0; border-bottom: 1px solid var(--lx-accent); padding: 0 2px; }
.word-detail { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: var(--lx-space-3); border: var(--lx-rule-width) solid var(--lx-rule); background: var(--lx-surface); border-radius: var(--lx-radius); margin: var(--lx-space-3) 0; }
.word-detail h2 { margin-bottom: 6px; }
.word-detail p { margin-bottom: 0; font-size: 15px; }
.translation { padding: var(--lx-space-3) 0; color: var(--lx-muted); font-size: 1em; }
.reading-footer { display: flex; justify-content: space-between; align-items: center; gap: 20px; border-top: var(--lx-rule-width) solid var(--lx-rule); margin-top: var(--lx-space-4); padding: var(--lx-space-3) 0 16px; }
.reading-footer > span, .glyph-sample { color: var(--lx-muted); font-family: var(--lx-font-ui); font-size: 12px; }
.glyph-sample { border-top: var(--lx-rule-width) solid var(--lx-rule); padding-top: 16px; }
dialog { width: min(620px, calc(100% - 36px)); border: 1px solid var(--lx-control-line); border-radius: var(--lx-radius); padding: var(--lx-space-3); background: var(--lx-surface); color: var(--lx-text); max-height: 90dvh; overflow-y: auto; }
dialog::backdrop { background: #141a1ae0; }
#image-dialog { background: #fff; max-width: 96vw; width: 960px; }
#image-dialog img { display: block; width: 100%; height: auto; margin-bottom: 18px; }
.preview-message { position: fixed; bottom: 16px; left: 16px; right: 16px; max-width: 700px; margin: auto; background: var(--lx-surface); color: var(--lx-text); border: 1px solid var(--lx-control-line); border-radius: var(--lx-radius); padding: 12px 16px; font-family: var(--lx-font-ui); font-size: 13px; z-index: 6; }
@media (max-width: 759px) {
  .page, .site-footer { width: calc(100% - 36px); }
  .site-header { padding: 8px 18px; gap: 18px; }
  .site-header nav { gap: 12px; }
  .site-header nav button { font-size: 12px; }
  .brand { font-size: 13px; }
  .hero { grid-template-columns: 1fr; gap: 10px; padding-top: 16px; }
  .hero h1 { font-size: 28px; margin-bottom: 4px; }
  .hero-art { grid-row: 1; }
  .hero-figure { width: 100%; max-width: 340px; margin: auto; }
  .hairline-play { margin: 0; }
  .hero-copy { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
  .hero-copy .text-link { font-size: 12px; }
  .tools-section { padding-bottom: var(--lx-space-4); }
  [data-listing="tiles"] .tool-list { grid-template-columns: 1fr; }
  [data-listing="tiles"] .tool { grid-template-columns: minmax(0,1fr) auto; gap: 8px 12px; padding: 20px 17px; }
  .tool { grid-template-columns: 1fr; }
  .tool h2 { font-size: 21px; }
  .tool p { font-size: 13px; }
  .tool-action { font-size: 12px; gap: 7px; }
  .feature-section { min-height: auto; padding: 44px 0; }
  .feature-inner, .histology-feature .feature-inner, .japanese-feature .feature-inner { grid-template-columns: 1fr; gap: 28px; }
  .japanese-feature .feature-copy, .japanese-feature .feature-panel { grid-column: auto; grid-row: auto; }
  .reader-feature .feature-copy { display: block; }
  .reader-feature .feature-copy .primary { margin-top: 20px; }
  .feature-reading { grid-template-columns: 1fr; gap: 24px; }
  .feature-reading > div + div { border-left: 0; border-top: var(--lx-rule-width) solid var(--lx-rule); padding: 24px 0 0; }
  .feature-copy h2 { font-size: 29px; }
  .feature-copy p { font-size: 16px; margin-bottom: 18px; }
  [data-home-motion="scroll"] .feature-panel { animation: none; transform: none; }
  .feature-reading { padding: 24px 0; }
  .feature-reading h3 { font-size: 24px; }
  .quiz { grid-template-columns: 1fr; gap: 24px; }
  .quiz-answer h2 { font-size: 24px; }
  .page-heading h1 { font-size: 30px; }
  .word-detail { flex-direction: column; align-items: start; }
  .reading-footer { align-items: start; flex-direction: column; gap: 12px; }
  th,td { padding: 12px 9px; }
  .site-footer { font-size: 12px; }
}
@media (max-width: 379px) {
  .site-header { flex-wrap: wrap; gap: 0; }
  .site-header nav { width: 100%; justify-content: space-between; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .feature-panel, .action-icon, .action-icon * { transform: none !important; }
  .histology-feature { min-height: auto !important; }
  .histology-feature .feature-inner { position: static !important; }
}
@media print {
  .site-header, .site-footer, .preview-skip { display: none; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .feature-panel { animation: none !important; transform: none !important; }
  .feature-section { min-height: auto !important; break-inside: avoid; }
  .feature-inner { position: static !important; }
}

.glyph-sample:lang(es) { font-family: var(--lx-font-latin); }

:lang(ja) { line-break: strict; ruby-position: over; }
.passage:lang(es), .feature-reading :lang(es) { hyphens: auto; font-variant-numeric: lining-nums; }
#collect-word { min-width: 125px; }
#complete-reading { min-width: 132px; }

:is([data-home-visual="wall"], [data-home-visual="rail-wall"]) .hero { grid-template-columns: 1fr; gap: 10px; padding: 22px 0 8px; }
:is([data-home-visual="wall"], [data-home-visual="rail-wall"]) .hero-copy { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
:is([data-home-visual="wall"], [data-home-visual="rail-wall"]) .hero h1 { margin: 0; }
.display-wall { width: 100%; max-width: 1060px; margin: 0 auto; }
.wall-stage { width: min(100%, calc((100svh - 250px) * 1.7857)); min-width: min(100%, 420px); margin: 0 auto; }
.wall-surface { position: relative; display: block; width: 100%; aspect-ratio: 1000 / 560; padding: 0; border: 0; border-radius: 0; background: transparent; cursor: pointer; touch-action: pan-y; -webkit-tap-highlight-color: transparent; }
.wall-surface > svg, .wall-surface > canvas { display: block; position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.wall-surface > canvas { opacity: 0; }
.wall-surface[data-wall-state="sand"] { cursor: crosshair; }
.wall-surface:focus-visible { outline: 2px solid var(--lx-accent); outline-offset: 3px; border-radius: 3px; }
.wall-controls { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 3px 30px 0; }
.wall-help { color: var(--lx-muted); font-family: var(--lx-font-ui); font-size: 12px; line-height: 1.6; margin: 0; }
.wall-restore { flex-shrink: 0; font-size: 13px; }
.wall-restore:disabled { color: var(--lx-muted); cursor: default; text-decoration-color: transparent; opacity: .65; }
.wall-restore:not(:disabled):hover .icon-restore { transform: rotate(-25deg); }
@media (max-width: 759px) {
  :is([data-home-visual="wall"], [data-home-visual="rail-wall"]) .hero { gap: 8px; padding-top: 18px; }
  :is([data-home-visual="wall"], [data-home-visual="rail-wall"]) .hero-copy { gap: 12px; }
  :is([data-home-visual="wall"], [data-home-visual="rail-wall"]) .hero-copy .text-link { font-size: 12px; }
  .wall-stage { width: 100%; min-width: 0; }
  .wall-controls { gap: 12px; padding: 5px 0 0; }
  .wall-help { max-width: 57%; font-size: 11px; }
  .wall-restore { font-size: 12px; gap: 6px; }
}
@media (prefers-reduced-motion: reduce) {
  .wall-restore .action-icon { transform: none !important; }
}
@media print {
  .wall-controls, .wall-surface canvas { display: none !important; }
  .wall-surface > svg { opacity: 1 !important; }
}

/* Preserve the approved studio layout while giving navigation its native link semantics. */
a.tool, a.primary, a.secondary-button { text-decoration: none; }
.site-header nav a { display: inline-flex; align-items: center; gap: 6px; padding: 8px 0; font-family: var(--lx-font-ui); font-size: 13px; color: var(--lx-muted); min-height: 44px; text-decoration: none; }
.site-header nav a:hover { color: var(--lx-accent); }
.anatomy-feature { scroll-margin-top: 120px; }
.feature-anatomy { font-family: var(--lx-font-histology); line-height: var(--lx-histology-line-height); }
.anatomy-term { font-size: clamp(26px, 3vw, 34px); line-height: 1.4; margin-bottom: 12px; }
.anatomy-english { font-size: clamp(20px, 2.4vw, 28px); line-height: 1.5; overflow-wrap: anywhere; margin-bottom: 28px; }
.anatomy-identification { border-top: var(--lx-rule-width) solid var(--lx-rule); padding-top: 20px; }
.anatomy-identification h4 { font-size: 14px; margin: 0 0 10px; }
.anatomy-identification p { font-size: 15px; color: var(--lx-muted); margin: 0; }
.unavailable { color: var(--lx-muted); background: transparent; border-color: var(--lx-control-line); }
.site-footer a { color: inherit; }
.site-footer-links { display: flex; gap: 20px; align-items: center; }
.info-page { max-width: 720px; padding-block: var(--lx-space-4) var(--lx-space-5); min-height: 65svh; }
.info-page h2 { margin-top: 32px; }
.info-page p { overflow-wrap: anywhere; }
[data-button-motion="subtle"] a:active .action-icon { transform: scale(.94); }
[data-button-motion="subtle"] a:focus-visible .icon-glyph { transform: translateY(-1px); }
@media (hover: hover) {
  [data-button-motion="subtle"] a:hover .icon-glyph { transform: translateY(-1px); }
}
@media (max-width: 759px) {
  .site-header nav a { font-size: 12px; }
  .site-footer-links { gap: 14px; flex-wrap: wrap; }
}
@media (max-width: 520px) {
  .site-header { flex-wrap: wrap; gap: 0; }
  .site-header nav { width: 100%; justify-content: space-between; gap: 8px; }
  .site-header nav .action-icon { width: 16px; height: 16px; flex-basis: 16px; }
}