@font-face{font-family:"Instrument Serif";font-weight:400;font-style:normal;font-display:swap;src:url(/fonts/instrument-serif-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:400;font-style:normal;font-display:swap;src:url(/fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Sans";font-weight:600;font-style:normal;font-display:swap;src:url(/fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"IBM Plex Mono";font-weight:400;font-style:normal;font-display:swap;src:url(/fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2")}

/* Layout: single-column specimen plate — rule-separated bands, nine glyphs to a row */
:root{
  color-scheme:light;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
  --paper:#EBEDEF; --panel:#F6F7F8; --ink:#141E27; --ink-soft:#5B6874;
  --rule:#CFD5DA; --accent:#A8442A; --accent-ink:#8E3722; --trace:#B9C1C8;
  --display:"Instrument Serif",Georgia,serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,monospace;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#0E151B; --panel:#161F27; --ink:#DEE5EB; --ink-soft:#8494A1;
  --rule:#243038; --accent:#E0876A; --accent-ink:#EDA188; --trace:#33434E;
  color-scheme:dark;
}}
html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 12px)}
img{max-width:100%}
[hidden]{display:none!important}

*{box-sizing:border-box}
body{
  background:var(--paper); color:var(--ink);
  font-family:var(--body); font-size:15.5px; line-height:1.6;
  margin:0; padding:0;
}
.wrap{
  max-width:880px; margin:0 auto;
  padding-left:max(16px,env(safe-area-inset-left,0px));
  padding-right:max(16px,env(safe-area-inset-right,0px));
  padding-block:20px 72px;
}
body.has-banner .wrap{padding-bottom:190px}
h1,h2,h3{text-wrap:balance;margin:0}
h1{font-family:var(--display);font-weight:400;font-size:clamp(2.6rem,9vw,4.2rem);line-height:0.98;letter-spacing:-0.01em}
h2{font-family:var(--display);font-weight:400;font-size:clamp(1.5rem,4vw,2rem);line-height:1.1}
h3{font-size:0.78rem;font-weight:600;letter-spacing:0.12em;text-transform:uppercase;color:var(--ink-soft)}
p{margin:0}
.lede{font-size:1.05rem;color:var(--ink-soft);max-width:60ch}
.eyebrow{font-family:var(--mono);font-size:0.72rem;letter-spacing:0.18em;text-transform:uppercase;color:var(--accent)}

/* ---- top bar: install link, language switch ---- */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:24px}
.toplink{font-size:0.88rem;color:var(--accent-ink);padding:10px 0}
.lang{display:inline-flex;margin-left:auto;background:var(--panel);border:1px solid var(--rule);border-radius:4px;padding:2px}
.lang button{
  font:600 0.84rem var(--body);color:var(--ink-soft);
  background:none;border:0;border-radius:3px;
  min-height:40px;padding:0 12px;cursor:pointer
}
.lang button[aria-pressed="true"]{background:var(--accent);color:var(--paper)}

header{display:flex;flex-direction:column;gap:14px}
.sig{display:flex;align-items:flex-end;gap:4px;margin-top:6px}
.sig svg{flex:0 1 52px;min-width:0;height:auto}

section{border-top:1px solid var(--rule);margin-top:44px;padding-top:28px;display:flex;flex-direction:column;gap:18px}

/* ---- live transliterator ---- */
.tool{background:var(--panel);border:1px solid var(--rule);border-radius:4px;padding:18px;display:flex;flex-direction:column;gap:14px;min-width:0}
.tool label{display:flex;flex-direction:column;gap:7px;font-size:0.78rem;font-weight:600;letter-spacing:0.1em;text-transform:uppercase;color:var(--ink-soft)}
.tool input[type=text]{
  font-family:var(--body);font-size:1.05rem;color:var(--ink);
  background:var(--paper);border:1px solid var(--rule);border-radius:3px;
  padding:10px 12px;width:100%
}
.tool input[type=text]:focus-visible,button:focus-visible,a:focus-visible,input[type=checkbox]:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.tool label.opt{flex-direction:row;align-items:center;gap:8px;font-size:0.88rem;color:var(--ink-soft);text-transform:none;letter-spacing:0;font-weight:400}
.opt input{accent-color:var(--accent);width:16px;height:16px;flex:none}
.out{
  background:var(--paper);border:1px solid var(--rule);border-radius:3px;
  padding:16px 14px;overflow-x:auto;min-height:92px;min-width:0
}
.line{display:flex;align-items:center;gap:0;flex-wrap:wrap;row-gap:10px}
.out.line{column-gap:22px}
.word{display:flex;align-items:center;flex-wrap:wrap;row-gap:10px;max-width:100%}
.line svg{width:40px;height:40px;flex:none}
.lit{font-family:var(--mono);font-size:1.05rem;color:var(--ink-soft);padding:0 3px;align-self:center}
.wordtag{
  display:inline-flex;align-items:center;gap:5px;
  border-bottom:2px solid var(--accent);padding-bottom:2px;margin-bottom:-2px
}

/* ---- glyph chart ---- */
.chart{display:flex;flex-direction:column;gap:26px}
.band{display:flex;flex-direction:column;gap:12px}
.bandhead{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.bandhead .spn{width:30px;height:30px;flex:none}
.bandhead strong{font-size:0.95rem;font-weight:600}
.bandhead span{font-size:0.86rem;color:var(--ink-soft)}
.row{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:6px}
@media (max-width:620px){.row{grid-template-columns:repeat(5,minmax(0,1fr))}}
@media (max-width:380px){.row{grid-template-columns:repeat(3,minmax(0,1fr))}}
.cell{display:flex;flex-direction:column;align-items:center;gap:2px;padding:9px 2px 7px;background:var(--panel);border:1px solid var(--rule);border-radius:3px;min-width:0}
.cell svg{width:100%;height:auto;max-width:48px}
.cell b{font-family:var(--display);font-size:1.3rem;font-weight:400;line-height:1}
.cell code{font-family:var(--mono);font-size:0.66rem;color:var(--ink-soft);letter-spacing:0.06em}

/* ---- rule panels ---- */
.rules{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
@media (max-width:620px){.rules{grid-template-columns:1fr}}
.rule{background:var(--panel);border:1px solid var(--rule);border-radius:3px;padding:14px;display:flex;flex-direction:column;gap:10px;min-width:0}
.rule .set{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.rule .set figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:3px}
.rule .set svg{width:40px;height:40px}
.rule .set figcaption{font-family:var(--mono);font-size:0.68rem;color:var(--ink-soft)}
.rule p{font-size:0.9rem;color:var(--ink-soft)}
.num{font-family:var(--mono);color:var(--accent);font-size:0.72rem;letter-spacing:0.12em}

/* ---- shorthand ---- */
.words{display:grid;grid-template-columns:repeat(auto-fit,minmax(104px,1fr));gap:8px}
.words .cell b{font-family:var(--body);font-size:0.95rem;font-weight:600}
.words .cell svg{stroke:var(--accent)}

/* ---- trace strip ---- */
.trace{background:var(--panel);border:1px solid var(--rule);border-radius:3px;padding:14px;overflow-x:auto}
.trace .line svg{stroke:var(--trace);width:46px;height:46px}

/* ---- install ---- */
.install{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media (max-width:620px){.install{grid-template-columns:1fr}}
html[data-platform="ios"] .p-ios{order:-1}
.install h4{margin:0;font-family:var(--display);font-weight:400;font-size:1.35rem;line-height:1.1}
.steps{margin:0;padding-left:1.3em;display:flex;flex-direction:column;gap:7px}
.steps li{font-size:0.92rem}
.ico{width:1.15em;height:1.15em;vertical-align:-0.2em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.ico circle{fill:currentColor;stroke:none}
html.standalone .install-only{display:none}

.btn{
  font:600 0.9rem var(--body);color:var(--ink);
  background:none;border:1px solid var(--rule);border-radius:3px;
  min-height:44px;padding:0 14px;cursor:pointer
}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--paper)}

.banner{
  position:fixed;z-index:10;
  left:max(10px,env(safe-area-inset-left,0px));
  right:max(10px,env(safe-area-inset-right,0px));
  bottom:calc(env(safe-area-inset-bottom,0px) + 10px);
  max-width:520px;margin:0 auto;
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:10px 12px;align-items:center;
  background:var(--panel);border:1px solid var(--rule);border-radius:6px;padding:12px;
  box-shadow:0 6px 24px rgba(20,30,39,.22)
}
.banner img{display:block;border-radius:9px}
.banner strong{display:block;font-weight:600;line-height:1.3}
.banner span{display:block;font-size:0.86rem;line-height:1.35;color:var(--ink-soft)}
.banner .actions{grid-column:1/-1;display:flex;justify-content:flex-end;gap:8px}

ul{margin:0;padding-left:1.1em;display:flex;flex-direction:column;gap:7px}
li{font-size:0.95rem}
li strong{font-weight:600}
code.k{font-family:var(--mono);font-size:0.86em;background:var(--panel);border:1px solid var(--rule);border-radius:3px;padding:1px 5px}
footer{border-top:1px solid var(--rule);margin-top:44px;padding-top:20px;font-size:0.84rem;color:var(--ink-soft)}
svg.g{stroke:var(--ink);stroke-width:3.2;stroke-linecap:round;fill:none;display:block}
svg.g .dot{fill:var(--ink);stroke:none}
.words svg.g .dot{fill:var(--accent)}
.trace svg.g .dot{fill:var(--trace)}
@media (prefers-reduced-motion:no-preference){.cell{transition:border-color .15s}html{scroll-behavior:smooth}}
.cell:hover{border-color:var(--accent)}