@font-face { font-family: "Klee"; src: url(/assets/fonts/klee-600.woff2) format("woff2"); font-weight: 600; font-display: swap; }
:root {
  --u: 8px; --r: 14px; --r2: 22px; --wrap: 1160px; --cell: min(86vw, 380px);
  --bg: #f3f5f2; --paper: #ffffff; --card: #ffffff; --ink: #16181d; --ink2: #3b414b; --mute: #5c6470; --line: #d6ddd8; --soft: #e8ede9;
  --fox: #c2410c; --fox-ink: #ffffff; --fox-soft: #fde8dc; --fox-hi: #e8590c; --pine: #0f6b5c; --pine-soft: #dcefe9;
  --grid: #e5a598; --grid2: #f1cbc2; --ghost: #dfe3e0; --guide: #868e96; --done: #7b848c; --cur: #c2410c; --num: #b4380a; --focus: #0f6b5c;
  --shadow: 0 1px 2px rgba(22, 24, 29, .06), 0 8px 24px rgba(22, 24, 29, .07);
  --display: "Klee", "Hiragino Maru Gothic ProN", "Yu Gothic UI", ui-rounded, system-ui, sans-serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ja: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", "Noto Sans CJK JP", "Noto Sans JP", sans-serif;
  --zh: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", sans-serif;
  --zht: "PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", "Noto Sans TC", sans-serif;
  --ko: "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans CJK KR", "Noto Sans KR", sans-serif;
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #121417; --paper: #1b1f24; --card: #1b1f24; --ink: #eef1f3; --ink2: #c9d0d6; --mute: #9aa4ad; --line: #2e363d; --soft: #232a30;
  --fox: #ff8a4c; --fox-ink: #1b0e06; --fox-soft: #3a2418; --fox-hi: #ff9d66; --pine: #4cc9ae; --pine-soft: #183a33;
  --grid: #7a3b33; --grid2: #4d2a25; --ghost: #2f373e; --guide: #6b757e; --done: #8a949c; --cur: #ff8a4c; --num: #ff9d66; --focus: #4cc9ae;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25); color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121417; --paper: #1b1f24; --card: #1b1f24; --ink: #eef1f3; --ink2: #c9d0d6; --mute: #9aa4ad; --line: #2e363d; --soft: #232a30;
    --fox: #ff8a4c; --fox-ink: #1b0e06; --fox-soft: #3a2418; --fox-hi: #ff9d66; --pine: #4cc9ae; --pine-soft: #183a33;
    --grid: #7a3b33; --grid2: #4d2a25; --ghost: #2f373e; --guide: #6b757e; --done: #8a949c; --cur: #ff8a4c; --num: #ff9d66; --focus: #4cc9ae;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25); color-scheme: dark;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.6 var(--sans); }
:lang(ja) { font-family: var(--ja); } :lang(zh-Hans) { font-family: var(--zh); } :lang(zh-Hant) { font-family: var(--zht); } :lang(ko) { font-family: var(--ko); }
a { color: var(--pine); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--fox); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; line-height: 1.25; letter-spacing: -.005em; margin: 0 0 calc(var(--u) * 1.5); }
h1 { font-size: clamp(28px, 6vw, 44px); } h2 { font-size: clamp(22px, 4vw, 28px); } h3 { font-size: 19px; }
p { margin: 0 0 calc(var(--u) * 2); }
img, svg { max-width: 100%; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--paper); padding: 8px 12px; border-radius: 8px; z-index: 9; }
.skip:focus { left: 8px; }
.ic { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
[hidden] { display: none !important; }


.top { background: var(--paper); border-bottom: 1px solid var(--line); position: relative; z-index: 5; }
@media (min-width: 900px) { .top { position: sticky; top: 0; } html { scroll-padding-top: 76px; } }
.top .wrap { display: flex; align-items: center; gap: calc(var(--u) * 1.5); min-height: 60px; }
.brand { display: flex; align-items: center; gap: 8px; color: var(--ink); text-decoration: none; margin-right: auto; }
.brand .logo { width: 36px; height: 36px; }
.wm { font: 600 23px/1 var(--display); letter-spacing: -.01em; }
.wm b { color: var(--fox); font-weight: 600; }
.nav { display: flex; flex-wrap: wrap; gap: 2px; order: 3; width: 100%; margin: 0 -16px; padding: 0 12px 8px; }
.nav::-webkit-scrollbar { display: none; }
.nav a { color: var(--ink2); text-decoration: none; padding: 7px 10px; border-radius: 999px; font-size: 14.5px; white-space: nowrap; min-height: 36px; display: flex; align-items: center; }
.nav a:hover { background: var(--soft); color: var(--ink); }
.nav a[aria-current] { background: var(--ink); color: var(--paper); }
.top .wrap { flex-wrap: wrap; }
.hbtn { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 12px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); cursor: pointer; }
.hbtn:hover { border-color: var(--ink2); }
.themebtn .sun { display: none; } [data-theme="dark"] .themebtn .sun { display: block; } [data-theme="dark"] .themebtn .moon { display: none; }
@media (min-width: 900px) { .nav { order: 0; width: auto; margin: 0; padding: 0; } .top .wrap { flex-wrap: nowrap; } }


.b { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 18px; border-radius: 999px; border: 1.5px solid var(--ink); background: var(--paper);
     color: var(--ink); font: 600 15px/1 var(--sans); cursor: pointer; text-decoration: none; }
.b:hover { background: var(--soft); color: var(--ink); }
.b.primary { background: var(--fox); border-color: var(--fox); color: var(--fox-ink); }
.b.primary:hover { background: var(--fox-hi); border-color: var(--fox-hi); color: var(--fox-ink); }
.b.quiet { border-color: var(--line); }
.b.sm { min-height: 36px; padding: 0 14px; font-size: 14px; }
.b[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.b[disabled] { opacity: .55; cursor: progress; }
select, input[type="text"], input[type="search"], textarea { font: 16px/1.4 var(--sans); color: var(--ink); background: var(--paper); border: 1.5px solid var(--line);
  border-radius: 12px; padding: 9px 12px; min-height: 44px; }
textarea { width: 100%; min-height: 96px; }
label { font-size: 15px; color: var(--ink2); }
.ib { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: var(--paper); color: var(--ink); display: grid; place-items: center; cursor: pointer; }
.ib:hover { border-color: var(--ink); }
.ib.main { background: var(--ink); color: var(--paper); border-color: var(--ink); width: 52px; height: 52px; }
.ib .pause { display: none; } .ib.on .pause { display: block; } .ib.on .play { display: none; }


.crumbs { font-size: 14px; color: var(--mute); padding: calc(var(--u) * 1.5) 0; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { color: var(--mute); } .crumbs i { font-style: normal; opacity: .5; }


.charhead { background: linear-gradient(var(--paper), var(--bg)); border-bottom: 1px solid var(--line); padding-bottom: calc(var(--u) * 3); }
.ch-grid { display: grid; gap: calc(var(--u) * 3); }
@media (min-width: 900px) { .ch-grid { grid-template-columns: 420px 1fr; align-items: start; } }
.stage { display: flex; flex-direction: column; align-items: center; gap: calc(var(--u) * 1.5); }
.player { margin: 0; width: var(--cell); aspect-ratio: 1; }
.glyph { display: block; width: 100%; height: 100%; background: var(--paper); border-radius: var(--r2); box-shadow: var(--shadow); touch-action: none; }
.grid rect { fill: none; stroke: var(--grid); stroke-width: .9; }
.grid path { fill: none; stroke: var(--grid); stroke-width: .6; stroke-dasharray: 2.2 2.2; }
.k-fill .grid rect { stroke-width: 8; } .k-fill .grid path { stroke-width: 5.5; stroke-dasharray: 20 20; }
.glyph .ghost use, .glyph .ghost path.line { fill: none; stroke: var(--ghost); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.k-fill .glyph .ghost use, .k-fill.glyph .ghost path, .glyph .ghost path.fill { fill: var(--ghost); stroke: none; }
.k-fill .glyph .ghost use { fill: var(--ghost); stroke: none; }
.ink path { fill: none; stroke: var(--ink); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1 2; }
.k-fill .ink path { stroke-width: 128; }
.nums text { font: 600 7.5px var(--sans); fill: var(--num); paint-order: stroke; stroke: var(--paper); stroke-width: 2.4px; }
.k-fill .nums text, .diag.k-fill .nums text { font-size: 70px; stroke-width: 22px; }
@media (prefers-reduced-motion: reduce) { .ink path { stroke-dashoffset: 0 !important; } }     
.ctl { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: center; }
.ctl .sel, .ctl .chk { display: flex; align-items: center; gap: 6px; }
.ctl select { min-height: 40px; padding: 4px 8px; }
.ctl .count { font: 600 14px var(--sans); color: var(--mute); min-width: 4.5em; text-align: center; }
.ch-info h1 .big { font-size: 1.15em; font-weight: 400; color: var(--ink); }
.h1t { font-size: .72em; color: var(--ink2); }
.ch-info > div > p:first-child, .ch-info p { font-size: 18px; }
.facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line);
  border-radius: var(--r); overflow: hidden; margin: 0 0 calc(var(--u) * 2); }
.facts div { background: var(--card); padding: 10px 14px; }
.facts dt { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--mute); }
.facts dd { margin: 2px 0 0; font-weight: 600; }
.acts { display: flex; flex-wrap: wrap; gap: 10px; }


.cols { padding-top: calc(var(--u) * 3); padding-bottom: calc(var(--u) * 4); }
.main-col { max-width: 820px; }
.blk { background: var(--card); border: 1px solid var(--line); border-radius: var(--r2); padding: calc(var(--u) * 3) calc(var(--u) * 2.5); margin-bottom: calc(var(--u) * 2.5); }
.blk > h2 { display: flex; align-items: baseline; gap: 10px; }
.common { color: var(--ink2); font-size: 15.5px; }
.data { }
.src { border-left: 3px solid var(--pine); padding-left: 12px; color: var(--ink2); font-style: italic; }
.strip { list-style: none; padding: 0; margin: 0 0 calc(var(--u) * 2); display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: 8px; }
.strip li { position: relative; }
.strip svg { display: block; width: 100%; aspect-ratio: 1; background: var(--paper); border: 1px solid var(--line); border-radius: 10px; }
.strip span { position: absolute; top: 3px; left: 6px; font: 600 11px var(--sans); color: var(--mute); }
.fr use { fill: none; stroke: var(--done); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.fr use.cur { stroke: var(--cur); }
.k-fill .fr use, .diag.k-fill .fr use { fill: var(--done); stroke: none; }
.k-fill .fr use.cur, .diag.k-fill .fr use.cur { fill: var(--cur); }
.diag .fr use { stroke: var(--ink); } .diag .fr use.cur { stroke: var(--cur); }
.diag.k-fill .fr use { fill: var(--ink); } .diag.k-fill .fr use.cur { fill: var(--cur); }
.diag .nums text.hi { fill: var(--cur); }
.walk { margin: 0; padding-left: 26px; display: grid; gap: 4px; font-size: 15.5px; }
.walk li::marker { color: var(--num); font-weight: 700; }
.walk b { font-weight: 600; } .walk .sym { color: var(--mute); margin: 0 4px; }
.walk .wh::before { content: " · "; color: var(--mute); } .walk .mv::before { content: " · "; color: var(--mute); } .walk .mv { color: var(--ink2); }
.kv { display: grid; gap: 0; margin: 0 0 calc(var(--u) * 2); border-top: 1px solid var(--line); }
.kv div { display: grid; grid-template-columns: minmax(120px, 34%) 1fr; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.kv dt { color: var(--mute); font-size: 15px; } .kv dd { margin: 0; }
.scroll { overflow-x: auto; margin: 0 0 calc(var(--u) * 2); }
.tbl { border-collapse: collapse; width: 100%; font-size: 15.5px; }
.tbl th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--mute); border-bottom: 2px solid var(--line); padding: 8px 10px; }
.tbl td { border-bottom: 1px solid var(--line); padding: 9px 10px; vertical-align: top; }
.tbl .w { font-size: 20px; white-space: nowrap; } .rm { color: var(--mute); font-size: 14px; } .tr { color: var(--mute); font-size: 15px; }
.tag { display: inline-block; font: 600 11px var(--sans); padding: 1px 7px; border-radius: 999px; background: var(--pine-soft); color: var(--pine); margin-left: 4px; }
.plain { padding-left: 20px; margin: 0 0 calc(var(--u) * 2); } .plain li { margin: 3px 0; }
.chips { list-style: none; padding: 0; margin: 0 0 calc(var(--u) * 2); display: flex; flex-wrap: wrap; gap: 8px; }
.chips a { display: grid; place-items: center; min-width: 48px; height: 48px; padding: 0 10px; border-radius: 12px; border: 1px solid var(--line); background: var(--paper);
  font-size: 24px; color: var(--ink); text-decoration: none; }
.chips a:hover { border-color: var(--fox); color: var(--fox); }
.pager { display: flex; justify-content: space-between; gap: 12px; margin: 0 0 calc(var(--u) * 2); }
.pn { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; color: var(--ink);
  background: var(--paper); font-size: 20px; min-height: 44px; }
.pn:hover { border-color: var(--fox); }
.pn[rel="next"] { margin-left: auto; }
.vsfig { margin: 0 0 calc(var(--u) * 2); max-width: 240px; } .vsfig figcaption { font-size: 14px; color: var(--mute); margin-top: 6px; }
.diag { display: block; width: 100%; aspect-ratio: 1; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); }
.diag .fr use { stroke-width: 5; }
svg.defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.dakrow { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; margin-bottom: calc(var(--u) * 2); }
.dak { margin: 0; } .dak figcaption { text-align: center; font-size: 18px; margin-top: 4px; }
.yoon { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; margin: 0 0 calc(var(--u) * 2); }
.yoon li { border: 1px solid var(--line); border-radius: 12px; padding: 8px 10px; background: var(--paper); } .yoon span { font-size: 22px; margin-right: 6px; }
.more { background: transparent; border-style: dashed; }


.trace { display: grid; gap: 12px; justify-items: center; margin-bottom: calc(var(--u) * 2); }
.tracer-host { width: var(--cell); aspect-ratio: 1; }
.tracer { cursor: crosshair; }
.tracer .gridl { fill: none; stroke: var(--grid); stroke-width: .6; stroke-dasharray: 2.2 2.2; } .tracer .gridb { fill: none; stroke: var(--grid); stroke-width: .9; }
.tracer.k-fill .gridl { stroke-width: 5.5; stroke-dasharray: 20 20; } .tracer.k-fill .gridb { stroke-width: 8; }
.tracer .ghost .line { fill: none; stroke: var(--guide); stroke-width: 6; stroke-linecap: round; stroke-linejoin: round; }
.tracer .ghost .fill { fill: var(--guide); }
.tracer.m-memory .ghost { visibility: hidden; }
.tracer .done .line { fill: none; stroke: var(--ink); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.tracer .done .brush { fill: none; stroke: var(--ink); stroke-width: 128; stroke-linecap: round; stroke-linejoin: round; }
.tracer .live { fill: none; stroke: var(--fox); stroke-width: 4.5; stroke-linecap: round; stroke-linejoin: round; opacity: .85; }
.tracer.k-fill .live { stroke-width: 42; }
.tracer .hint .dot { fill: var(--fox); animation: blink 1.1s ease-in-out infinite; } .tracer .hint .arrow { stroke: var(--fox); stroke-width: 2.5; fill: none; stroke-linecap: round; }
.tracer.k-fill .hint .arrow { stroke-width: 24; }
@keyframes blink { 50% { opacity: .25; } }
@media (prefers-reduced-motion: reduce) { .tracer .hint .dot { animation: none; } }
.tbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: center; }
.seg { display: inline-flex; gap: 6px; }
.tstat { margin: 0; width: 100%; text-align: center; font-weight: 600; min-height: 1.6em; }
.tstat.ok { color: var(--pine); } .tstat.miss { color: var(--fox); }


.sheet { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; margin-bottom: calc(var(--u) * 2); }
.opts { display: flex; flex-wrap: wrap; gap: 12px; } .opts label { display: grid; gap: 4px; }


.phead { background: linear-gradient(var(--paper), var(--bg)); border-bottom: 1px solid var(--line); padding-bottom: calc(var(--u) * 3); }
.phead .lede { font-size: 19px; color: var(--ink2); max-width: 760px; }
.prose { max-width: 760px; }
.prose h2 { margin-top: calc(var(--u) * 4); }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin: 0 0 calc(var(--u) * 3); }
.card { display: grid; gap: 6px; align-content: start; background: var(--card); border: 1px solid var(--line); border-radius: var(--r2); padding: 18px; text-decoration: none; color: var(--ink);
  box-shadow: var(--shadow); min-height: 120px; }
.card:hover { border-color: var(--fox); color: var(--ink); }
.card b { font: 600 19px var(--display); } .card span { color: var(--ink2); font-size: 15px; }
.card .glyphs { font-size: 30px; letter-spacing: .08em; color: var(--fox); }
.grid-chars { display: grid; grid-template-columns: repeat(auto-fill, minmax(58px, 1fr)); gap: 8px; list-style: none; padding: 0; margin: 0 0 calc(var(--u) * 3); }
.grid-chars a, .grid-chars span.nopage { display: grid; place-items: center; aspect-ratio: 1; border: 1px solid var(--line); border-radius: 12px; background: var(--paper);
  font-size: 26px; color: var(--ink); text-decoration: none; position: relative; }
.grid-chars a:hover { border-color: var(--fox); color: var(--fox); }
.grid-chars a.v { border-style: dashed; color: var(--ink2); }
.grid-chars small { position: absolute; bottom: 2px; font: 600 10px var(--sans); color: var(--mute); }
.legend { font-size: 14px; color: var(--mute); }
.search { display: flex; gap: 8px; margin: 0 0 calc(var(--u) * 2); max-width: 640px; }
.search input { flex: 1; font-size: 18px; min-height: 52px; border-radius: 14px; }
.results { list-style: none; padding: 0; margin: 0 0 calc(var(--u) * 3); display: grid; gap: 8px; }
.results a { display: grid; grid-template-columns: 56px 1fr; gap: 12px; align-items: center; padding: 8px 12px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper);
  color: var(--ink); text-decoration: none; }
.results a:hover { border-color: var(--fox); }
.results .rc { font-size: 32px; text-align: center; } .results .rt { font-size: 15px; color: var(--ink2); } .results .rt b { color: var(--ink); }
.chart { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; margin: 0 0 calc(var(--u) * 3); max-width: 620px; }
.chart a, .chart span { display: grid; place-items: center; aspect-ratio: 1; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); text-decoration: none; color: var(--ink); }
.chart a b { font-size: clamp(26px, 7vw, 40px); font-weight: 400; line-height: 1.1; } .chart a i { font-style: normal; font-size: 13px; color: var(--mute); }
.chart a:hover { border-color: var(--fox); } .chart .gap { border: 0; background: transparent; }
.chart.wide { grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); max-width: none; }
.tool { background: var(--card); border: 1px solid var(--line); border-radius: var(--r2); padding: 18px; margin: 0 0 calc(var(--u) * 3); box-shadow: var(--shadow); }
.tool .row { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; margin-bottom: 12px; }
.tool .row label { display: grid; gap: 4px; }
.tool .out { font-weight: 600; min-height: 1.6em; }
.quiz { display: grid; gap: 14px; justify-items: center; text-align: center; }
.quiz .q { font-size: clamp(64px, 18vw, 120px); line-height: 1.1; }
.quiz .opts2 { display: grid; grid-template-columns: repeat(2, minmax(120px, 1fr)); gap: 10px; width: min(100%, 420px); }
.quiz .opts2 button { min-height: 56px; font-size: 20px; border-radius: 14px; }
.quiz .opts2 button.right { background: var(--pine); color: #fff; border-color: var(--pine); }
.quiz .opts2 button.wrong { background: var(--fox-soft); border-color: var(--fox); }
.stats { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; color: var(--mute); font-size: 15px; }
.stats b { color: var(--ink); }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 0 0 calc(var(--u) * 2); }
.panel { margin-bottom: calc(var(--u) * 2); }
.note { background: var(--fox-soft); border-radius: var(--r); padding: 12px 16px; color: var(--ink); font-size: 15.5px; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0 0 calc(var(--u) * 3); }
.toc a { display: inline-block; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; color: var(--ink2); background: var(--paper); font-size: 15px; }
.hero { padding: calc(var(--u) * 4) 0 calc(var(--u) * 3); }
.hero h1 { font-size: clamp(32px, 7vw, 56px); max-width: 16em; }
.hero .lede { font-size: clamp(18px, 2.4vw, 21px); color: var(--ink2); max-width: 40em; }
.try { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; color: var(--mute); }
.try a { font-size: 26px; text-decoration: none; padding: 2px 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); }
.hero-grid { display: grid; gap: 24px; } @media (min-width: 900px) { .hero-grid { grid-template-columns: 1.2fr 1fr; align-items: center; } }
.fox-art { width: min(100%, 360px); justify-self: center; }
.ad { margin: calc(var(--u) * 3) 0; min-height: 280px; } .ad-l { font-size: 12px; color: var(--mute); }


.credit { border-top: 1px solid var(--line); padding: calc(var(--u) * 2) 0 calc(var(--u) * 4); font-size: 14px; color: var(--mute); }
.credit .ch { font: 600 14px var(--sans); text-transform: uppercase; letter-spacing: .06em; color: var(--mute); margin-bottom: 8px; }
.credit ul { margin: 0 0 8px; padding-left: 18px; } .credit a { color: var(--mute); }
footer { background: var(--paper); border-top: 1px solid var(--line); padding: calc(var(--u) * 4) 0 calc(var(--u) * 3); font-size: 15px; }
.fgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 20px; }
.fgrid .fh { font: 600 13px var(--sans); text-transform: uppercase; letter-spacing: .07em; color: var(--mute); margin: 0 0 8px; }
.fgrid a { display: block; color: var(--ink2); text-decoration: none; padding: 5px 0; } .fgrid a:hover { color: var(--fox); }
.fnote { margin-top: 24px; font-size: 13.5px; color: var(--mute); max-width: 860px; }
.fbase { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; border-top: 1px solid var(--line); margin-top: 16px; padding-top: 12px; font-size: 13.5px; color: var(--mute); }
@media print { .top, footer, .ctl, .acts, .tracebox, .sheetbox, .credit { display: none; } body { background: #fff; } }


.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.qm { font-size: 26px; font-weight: 600; margin: 0; }
.qbar { display: grid; gap: 10px; justify-items: center; width: 100%; }
.qgroups { justify-content: center; } .qgroups label { gap: 6px; } .qgroups input { width: 18px; height: 18px; accent-color: var(--fox); }
.qstage { display: grid; gap: 12px; justify-items: center; width: 100%; }
.qstage .search { max-width: 320px; } .qstage .tracer-host { width: min(78vw, 320px); }
.exrow { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 12px; margin: 0 0 calc(var(--u) * 2); }
.ex { margin: 0; } .ex a { display: block; text-decoration: none; } .ex figcaption { text-align: center; font-size: 20px; margin-top: 4px; }
.pairs { display: grid; gap: 14px; margin-bottom: calc(var(--u) * 2); }
.pair { display: grid; grid-template-columns: 40px 1fr 1fr; gap: 10px; align-items: center; } .pair > p { font-size: 30px; margin: 0; text-align: center; }
.pair .ex figcaption { font-size: 14px; color: var(--mute); }
.jgrid { display: grid; gap: 14px; } @media (min-width: 640px) { .jgrid { grid-template-columns: 160px 1fr; } }
.jfig { margin: 0; max-width: 160px; }
.jamo h3 { font-size: 22px; } .jamo h3 span { font-size: 34px; margin-right: 4px; }
.grouph { margin: calc(var(--u) * 4) 0 calc(var(--u) * 2); }
.jpick { margin: 12px 0; } .jpick .b { font-size: 22px; min-width: 52px; justify-content: center; }
.jplayer { display: flex; justify-content: center; }
.big2 { font-size: 64px; margin: 0; }
.acts2 { display: flex; flex-wrap: wrap; gap: 10px; }
details.lic { border: 1px solid var(--line); border-radius: var(--r); padding: 10px 14px; margin: 0 0 10px; background: var(--card); }
details.lic summary { cursor: pointer; font-weight: 600; }
pre.lic { white-space: pre-wrap; word-break: break-word; font: 13px/1.5 ui-monospace, "Cascadia Mono", Consolas, monospace; max-height: 420px; overflow: auto; background: var(--soft); padding: 12px; border-radius: 10px; }
.fox-art.sm { width: 140px; display: block; margin: 0 0 16px; }
.tool h2 { font-size: 22px; } .tool textarea { font-size: 22px; }
.corr li { margin-bottom: 8px; }
.viewer .ch-grid { margin-bottom: 16px; } .vplayer .player { width: min(80vw, 340px); }
.mylist .row { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0; }
.stats { margin: 0; }
.hero-art { display: grid; justify-items: center; gap: 10px; }
.hero-player { width: min(64vw, 360px); }
.hero-cap { font-size: 15px; color: var(--mute); margin: 0; }
.main-col.wide { max-width: none; }
.jamogrid { display: grid; gap: 0 20px; } @media (min-width: 1000px) { .jamogrid { grid-template-columns: 1fr 1fr; } }
.tip { font-size: 15px; color: var(--mute); margin: calc(var(--u) * 1.5) 0 0; }
.vs2 { display: flex; flex-wrap: wrap; gap: calc(var(--u) * 2); margin: calc(var(--u) * 1.5) 0; } .vs2 .vsfig { flex: 1 1 160px; max-width: 220px; margin: 0; }
.vsay { margin: 0 0 var(--u); } .rare { color: var(--mute); font-size: 14px; }
.more-rows { margin: var(--u) 0 0; } .tbl.rd td:first-child { white-space: nowrap; }

html.js .ctl[hidden], html.js .acts[hidden], html.js .sheet[hidden], html.js .tabs[hidden], html.js .tool[data-levelsheet][hidden], html.js .quizapp[data-key][hidden], html.js .tool[data-gen][hidden], html.js .tool[data-paper][hidden], html.js [data-more][hidden] { display: block; visibility: hidden; }
html.js .acts[hidden], html.js .tabs[hidden] { display: flex; } html.js .ctl[hidden] { display: flex; }
html:not(.js) .themebtn { display: none; }