/* gentleface.com. Tokens and the tile geometry follow the gallery (tools/review/site.html): every glyph lands on whole
   pixels (Y8.2), so boxes have even integer sizes and the layout is left-anchored. */
:root{
  --bg:#F3F4F6; --panel:#FFFFFF; --ink:#15171B; --ink2:#5A6170; --ink3:#8A90A0; --rule:#E1E4EA; --hover:#ECEFF4;
  --acc:#2E59E6; --acc-soft:#E6ECFD; --chip-l:#FFFFFF; --chip-l-ink:#15171B; --chip-d:#15171B; --chip-d-ink:#ECEEF2;
  --sans:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif; --mono:'IBM Plex Mono',ui-monospace,'SF Mono',Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#111317; --panel:#1A1D23; --ink:#ECEEF2; --ink2:#A4AAB8; --ink3:#727889; --rule:#2B3039; --hover:#22262E;
  --acc:#7D9BFF; --acc-soft:#232C47; color-scheme:dark }}
:root[data-theme="dark"]{
  --bg:#111317; --panel:#1A1D23; --ink:#ECEEF2; --ink2:#A4AAB8; --ink3:#727889; --rule:#2B3039; --hover:#22262E;
  --acc:#7D9BFF; --acc-soft:#232C47; color-scheme:dark }
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:400 14px/1.5 var(--sans)}
a{color:inherit;text-underline-offset:3px}
code,pre{font-family:var(--mono)}

/* top bar */
.top{position:sticky;top:0;z-index:6;background:var(--bg);border-bottom:1px solid var(--rule);padding:12px 24px 10px;display:flex;flex-direction:column;gap:10px}
.top .row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px}
.brand{font:600 18px/1 var(--sans);letter-spacing:-.01em;text-decoration:none;margin-right:6px}
.top form{margin:0}
#q{font:400 14px/1 var(--sans);color:var(--ink);background:var(--panel);border:1px solid var(--rule);border-radius:8px;padding:9px 12px;width:300px;max-width:100%}
.ctl{display:flex;align-items:center;gap:8px}
.lbl{font:500 11px/1 var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--ink3)}
.seg{display:inline-flex;border:1px solid var(--rule);border-radius:7px;overflow:hidden;background:var(--panel)}
.seg button{border:0;background:none;color:var(--ink2);font:500 12.5px/1 var(--sans);padding:7px 10px;cursor:pointer}
.seg button+button{border-left:1px solid var(--rule)}
.seg button[aria-pressed="true"]{background:var(--acc-soft);color:var(--acc)}
.toplinks{margin-left:auto;display:flex;gap:16px;font-size:13px}
.toplinks a{color:var(--ink2)}

/* layout */
.layout{display:grid;grid-template-columns:224px minmax(0,1fr);gap:24px;padding:20px 24px 48px;align-items:start}
.cats{position:sticky;top:calc(var(--top-h, 112px) + 16px);display:flex;flex-direction:column;gap:1px;max-height:calc(100vh - var(--top-h, 112px) - 32px);overflow:auto}
.cats a{display:flex;justify-content:space-between;gap:8px;color:var(--ink2);font:400 13.5px/1.25 var(--sans);text-decoration:none;padding:6px 10px;border-radius:6px}
.cats a span:last-child{font:400 12px/1.25 var(--mono);color:var(--ink3);font-variant-numeric:tabular-nums}
.cats a:hover{background:var(--hover)}
.cats a[aria-current="page"]{background:var(--acc-soft);color:var(--acc);font-weight:500}
.cats hr{border:0;border-top:1px solid var(--rule);margin:6px 10px}
main{min-width:0}

/* intro and headings */
.intro{margin:0 0 28px}
.intro h1{font:600 28px/1.15 var(--sans);letter-spacing:-.015em;margin:0 0 10px}
.intro p{margin:0 0 6px;color:var(--ink2);font-size:15px}
.intro .by{font-size:13px;color:var(--ink3)}
.crumbs{font-size:12.5px;color:var(--ink3);margin:0 0 10px}
.crumbs a{color:var(--ink2)}
h2{font:600 16px/1.3 var(--sans);margin:28px 0 12px;display:flex;align-items:baseline;gap:10px}
h2 a{text-decoration:none}
h2 a:hover{text-decoration:underline}
h2 small{font:400 12.5px/1 var(--mono);color:var(--ink3)}
section:first-of-type > h2{margin-top:0}

/* tiles: the glyph box is 48×48 at (31,16) in a 112×104 tile, so a 16 or 32 px glyph centres on whole pixels */
.grid{display:grid;grid-template-columns:repeat(auto-fill,112px);gap:8px}
.tile{position:relative;width:112px;height:104px;border:1px solid transparent;border-radius:8px;background:var(--panel);color:var(--ink);text-decoration:none;display:block}
.tile:hover{border-color:var(--rule);background:var(--hover)}
.tile .gx{position:absolute;left:31px;top:16px;width:48px;height:48px}
.tile svg{position:absolute;display:block}
.tile .nm{position:absolute;left:6px;right:6px;bottom:10px;font:400 11px/1.2 var(--mono);color:var(--ink2);text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.empty{padding:24px 0;color:var(--ink2)}

/* icon page */
.icon-head h1{font:500 26px/1.2 var(--mono);margin:0;word-break:break-all}
.icon-head h1 span{font:400 16px/1 var(--sans);color:var(--ink3);margin-left:8px}
.icon-head p{margin:8px 0 0;color:var(--ink2)}
.styles{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:12px;margin:20px 0 8px}
.style{background:var(--panel);border:1px solid var(--rule);border-radius:10px;padding:12px}
.style h3{margin:0 0 10px}
.style h3 button{border:0;background:none;padding:0;font:500 12px/1 var(--mono);color:var(--ink2);cursor:pointer}
.style.on{border-color:var(--acc)}
.style.on h3 button{color:var(--acc)}
.chips{display:flex;gap:8px}
/* true-size chips keep their own ground in both themes */
.chip{width:72px;height:72px;border-radius:8px;position:relative;border:1px solid var(--rule)}
.chip.l{background:var(--chip-l);color:var(--chip-l-ink)}
.chip.d{background:var(--chip-d);color:var(--chip-d-ink)}
.chip svg{position:absolute;display:block}
.style details{margin-top:10px}
.style summary{cursor:pointer;font-size:12.5px;color:var(--ink2)}
.style pre{margin:8px 0;padding:8px;background:var(--bg);border:1px solid var(--rule);border-radius:6px;font-size:10.5px;line-height:1.4;white-space:pre-wrap;word-break:break-all;max-height:120px;overflow:auto}
.acts{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.acts a,.acts button{border:1px solid var(--rule);background:var(--panel);color:var(--ink);font:500 12.5px/1 var(--sans);padding:8px 10px;border-radius:7px;cursor:pointer;text-decoration:none}
.style .acts{gap:4px}
.style .acts a{font-size:11.5px;padding:6px 7px}
.more{margin:8px 0 0;font-size:13px}
.links{display:flex;flex-wrap:wrap;gap:6px 14px;font:400 12.5px/1.4 var(--mono)}
.copyname{vertical-align:middle;margin-left:8px;border:1px solid var(--rule);background:var(--panel);color:var(--ink2);font:500 12px/1 var(--sans);padding:6px 9px;border-radius:7px;cursor:pointer}
.acts button.pri{background:var(--acc);border-color:var(--acc);color:var(--panel)}
.note{font-size:12.5px;color:var(--ink3);margin:6px 0 0}
dl.meaning{display:grid;grid-template-columns:160px minmax(0,1fr);gap:8px 16px;margin:0;max-width:60em}
dl.meaning dt{color:var(--ink3)}
dl.meaning dd{margin:0}
dl.meaning ul{margin:0;padding:0;list-style:none}
dl.meaning li+li{margin-top:4px}
dl.meaning code{font-size:12.5px}
dl.meaning ul.history time{font:400 12px/1.4 var(--mono);color:var(--ink3);margin-right:8px}
.machine{font-size:13px;color:var(--ink2)}
.machine code{font-size:12px}

/* code panel: every format is in the HTML; with JS they become tabs */
#code figure{margin:0 0 16px}
#code figcaption{font:500 12.5px/1.2 var(--sans);color:var(--ink2);margin:0 0 6px}
#code.tabbed figcaption{display:none}
#code pre,.prose pre{margin:0;padding:12px;background:var(--panel);border:1px solid var(--rule);border-radius:8px;font-size:11.5px;line-height:1.5;white-space:pre;max-height:360px;overflow:auto;tab-size:2}
/* one-line formats wrap; code keeps its lines and scrolls */
#code pre[data-lang="svg"],#code pre[data-lang="text"],.prose pre[data-lang="svg"]{white-space:pre-wrap;word-break:break-all}
[role="tablist"]{display:flex;flex-wrap:wrap;gap:4px;margin:0 0 10px}
[role="tab"]{border:1px solid var(--rule);background:var(--panel);color:var(--ink2);font:500 12.5px/1 var(--sans);padding:7px 10px;border-radius:7px;cursor:pointer}
[role="tab"][aria-selected="true"]{background:var(--acc-soft);border-color:var(--acc);color:var(--acc)}
.intro .dl{font-size:13.5px}
.prose{max-width:46em}
.prose h2{margin:28px 0 8px}
.prose p,.prose li{color:var(--ink2);font-size:14.5px}
.prose ul{padding-left:18px}
.prose li+li{margin-top:8px}
.prose pre{margin:8px 0 0}
.prose h3{font:600 14px/1.3 var(--sans);margin:18px 0 4px}

/* footer */
footer{border-top:1px solid var(--rule);padding:20px 24px 32px;display:flex;flex-wrap:wrap;gap:8px 24px;font-size:13px;color:var(--ink2)}

button:focus-visible,input:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--acc);outline-offset:1px}
/* View "Icons only": a dense grid, names on hover. The glyph box stays 48×48 at whole-pixel offsets. */
html[data-view="icons"] .grid{grid-template-columns:repeat(auto-fill,64px);gap:6px}
html[data-view="icons"] .tile{width:64px;height:64px}
html[data-view="icons"] .tile .gx{left:7px;top:7px}
html[data-view="icons"] .tile .nm{display:none}

/* quick drawer (app.js): a side panel, a bottom sheet on phones */
.drawer{position:fixed;top:0;right:0;bottom:0;width:380px;max-width:100%;background:var(--panel);border-left:1px solid var(--rule);z-index:8;
  padding:20px 24px 24px;overflow:auto;box-shadow:-12px 0 32px rgba(0,0,0,.12)}
.dr-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.dr-head h2{font:500 20px/1.2 var(--mono);margin:0;word-break:break-all}
.dr-head h2 a{text-decoration:none}
.drawer .x{border:0;background:none;color:var(--ink2);width:32px;height:32px;border-radius:6px;cursor:pointer;font:400 22px/1 var(--sans);flex:none}
.drawer .x:hover{background:var(--hover)}
.dr-use{color:var(--ink2);font-size:13.5px;margin:8px 0 0;min-height:1.5em}
.drawer .chips{margin:16px 0 6px;flex-wrap:wrap}
.drawer .cap{font:400 11.5px/1.3 var(--mono);color:var(--ink3);margin:0 0 14px}
.drawer .acts{margin-top:10px}
.drawer .files a{font-size:12px;padding:7px 8px}
.dr-more{display:inline-block;margin-top:18px;font-size:13.5px}

/* Feedback */
#fb{width:min(520px,calc(100vw - 32px));border:1px solid var(--rule);border-radius:12px;background:var(--panel);color:var(--ink);padding:20px 24px}
#fb::backdrop{background:rgba(10,12,16,.45)}
#fb h2{margin:0 0 10px}
.fb-form label{display:block;color:var(--ink2);font-size:13.5px;margin:0 0 8px}
.fb-form textarea{width:100%;font:400 14px/1.5 var(--sans);color:var(--ink);background:var(--bg);border:1px solid var(--rule);border-radius:8px;padding:10px 12px;resize:vertical}
.fb-form .trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.fb-status{min-height:1.4em;margin:10px 0 0;font-size:13px;color:var(--ink2)}
.fb-page{max-width:560px}

@media (max-width:820px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .cats{position:static;flex-direction:row;overflow-x:auto;max-height:none}
  .cats a{flex:0 0 auto}
  .cats hr{display:none}
  .toplinks{margin-left:0}
  .drawer{top:auto;width:100%;height:70vh;border-left:0;border-top:1px solid var(--rule);border-radius:14px 14px 0 0;box-shadow:0 -12px 32px rgba(0,0,0,.14)}
  dl.meaning{grid-template-columns:minmax(0,1fr)}
  dl.meaning dd{margin-bottom:8px}
}
@media (max-width:520px){ .top,.layout,footer{padding-left:16px;padding-right:16px} .top form,#q{width:100%} .grid{grid-template-columns:repeat(auto-fill,104px)} .tile{width:104px} .tile .gx{left:27px} }