:root{
  --bg:#f6f4ef; --card:#fff; --ink:#1c1b19; --muted:#6b675f; --line:#e3dfd6;
  --accent:#b93d0b; --accent-ink:#fff; --control:#8f897d; --soft:#fbe9df; --mark:#ffe3cf; --ok:#237a34; --ok-ink:#fff; --focus:#1c7ed6;
  --radius:16px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#141311; --card:#1e1d1a; --ink:#f1efe9; --muted:#a39e93; --line:#34322d;
    --accent:#ff7a3d; --accent-ink:#1c1b19; --soft:#3a2418; --mark:#4a2a14; --ok:#69db7c; --ok-ink:#0b2e14; --focus:#74c0fc; --control:#757066;
  }
}
:root[data-theme="dark"]{
  --bg:#141311; --card:#1e1d1a; --ink:#f1efe9; --muted:#a39e93; --line:#34322d;
  --accent:#ff7a3d; --accent-ink:#1c1b19; --soft:#3a2418; --mark:#4a2a14; --ok:#69db7c; --ok-ink:#0b2e14; --focus:#74c0fc; --control:#757066;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--accent)}
button{font:inherit;color:inherit}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
header.top{display:flex;align-items:center;justify-content:space-between;padding:10px 0}
.logo{font-weight:800;font-size:20px;letter-spacing:-.02em;text-decoration:none;color:var(--ink)}
.logo b{color:var(--accent)}
.lang{font-size:14px;color:var(--muted)}
h1{font-size:clamp(24px,6vw,34px);line-height:1.15;margin:4px 0 12px;letter-spacing:-.02em}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
.io{padding:12px}
textarea{width:100%;min-height:88px;resize:vertical;border:0;outline:none;background:transparent;color:var(--ink);font:500 20px/1.4 system-ui,sans-serif;padding:4px}
.io-foot{display:flex;justify-content:space-between;align-items:center;gap:8px;border-top:1px solid var(--line);padding-top:8px;font-size:13px;color:var(--muted)}
.io-foot .left{display:flex;align-items:center;gap:8px;min-width:0;flex:1}
.io-foot .left span{white-space:nowrap}
select{font:inherit;font-size:13px;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:999px;padding:4px 8px;max-width:210px;min-width:0;flex:0 1 auto}
.io-foot select{width:100%}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:4px 10px;background:transparent;color:var(--muted);cursor:pointer;font-size:14px}
.out{margin-top:12px;padding:14px 12px;min-height:110px}
.out-label{font-size:13px;color:var(--muted);margin-bottom:8px;display:flex;justify-content:space-between}
.words{display:flex;flex-wrap:wrap;gap:10px 20px}
.ch{display:flex;flex-direction:column;align-items:center;gap:4px;padding:5px 4px;border-radius:10px;transition:background .08s}
.ch .sig{display:flex;align-items:center;gap:3px;height:12px}
.ch .el{display:block;background:var(--ink)}
.ch .dot{width:8px;height:8px;border-radius:50%}
.ch .dash{width:22px;height:8px;border-radius:4px}
.ch .adash{width:15px}
.ch .ldash{width:32px}
.ch .zdash{width:40px}
.ch .agap{display:block;width:6px}
.word{display:flex;flex-direction:column;align-items:flex-start}
.wrow{display:flex;flex-wrap:nowrap;gap:4px}.word{max-width:100%}.word.long .wrow{flex-wrap:wrap}
.wcap{font:600 18px/1.2 system-ui,sans-serif;padding:0 4px 2px}
.ch .lt{font-size:13px;color:var(--muted);font-weight:600;min-height:16px;line-height:16px;white-space:nowrap}
.ch.k-ext .lt,.ch.k-common .lt,.ch.k-plain .lt{color:var(--accent)}
.ch.bad .lt{color:var(--accent)}
.ch.bad .sig{font-size:12px;color:var(--accent);font-family:ui-monospace,Menlo,monospace}
.ch.pro{background:var(--soft)}
.ch.on{background:var(--mark)}
.ch .el.on{background:var(--accent)}
.plain{font:600 22px/1.4 system-ui,sans-serif;word-break:break-word;margin-bottom:10px}
.raw{font:14px/1.5 ui-monospace,Menlo,Consolas,monospace;color:var(--muted);word-break:break-all;margin-top:12px}
.empty{color:var(--muted)}
.note{font-size:13px;color:var(--muted);margin:6px 0 0}
.controls{display:flex;gap:8px;margin-top:12px;align-items:stretch;position:sticky;bottom:0;z-index:5;background:var(--bg);padding:10px 0 calc(10px + env(safe-area-inset-bottom))}
.play{flex:1;display:flex;align-items:center;justify-content:center;gap:10px;border:0;border-radius:14px;background:var(--accent);color:var(--accent-ink);font:700 18px system-ui,sans-serif;padding:12px;cursor:pointer;min-height:54px}
.play svg{width:22px;height:22px}
.stopbtn{display:none;width:54px;border:1px solid var(--line);background:var(--card);border-radius:14px;cursor:pointer;align-items:center;justify-content:center}
.stopbtn.show{display:flex}
.stopbtn svg{width:20px;height:20px}
.modes{display:flex;gap:6px}
.mode{width:52px;border:1px solid var(--line);background:var(--card);color:var(--muted);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;gap:2px;cursor:pointer;padding:4px}
.mode svg{width:20px;height:20px}
.mode[aria-pressed="true"]{border-color:var(--accent);color:var(--accent);background:var(--soft)}
.tools{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.btn{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:9px 4px;font:600 13px system-ui,sans-serif;display:flex;flex-direction:column;align-items:center;gap:4px;cursor:pointer}
.btn svg{width:20px;height:20px}
.btn[aria-expanded="true"]{border-color:var(--accent);color:var(--accent);background:var(--soft)}
.panel{margin-top:8px;padding:12px;display:none}
.panel.open{display:block}
.panel h3{margin:0 0 8px;font-size:15px}
.setrow{display:flex;align-items:center;gap:12px;margin:8px 0}
.setrow label{width:96px;font-size:14px;color:var(--muted);flex:none}
.setrow input[type=range]{flex:1;accent-color:var(--accent);min-width:0}
.setrow output{width:78px;text-align:right;font-variant-numeric:tabular-nums;font-size:14px;flex:none}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.seg button{border:0;background:transparent;padding:5px 12px;font-size:14px;cursor:pointer;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}
.tapkey{width:100%;height:120px;border-radius:16px;border:2px solid var(--line);background:var(--soft);font:700 18px system-ui,sans-serif;touch-action:none;user-select:none;-webkit-user-select:none;cursor:pointer}
.tapkey.down{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.tapline{font:600 18px ui-monospace,Menlo,monospace;min-height:28px;margin:8px 0;word-break:break-all}
.bigbtn{border:0;border-radius:12px;background:var(--ink);color:var(--bg);padding:12px 16px;font:700 15px system-ui,sans-serif;cursor:pointer}
.bigbtn.rec{background:var(--accent);color:var(--accent-ink)}
.meter{height:10px;border-radius:5px;background:var(--line);overflow:hidden;margin:10px 0 6px}
.meter i{display:block;height:100%;width:0;background:var(--ok);transition:width .04s}
.meter.on i{background:var(--accent)}
.stats{display:flex;gap:14px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.linkrow{display:flex;flex-wrap:wrap;gap:8px}
.linkrow a,.linkrow button{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;padding:7px 12px;text-decoration:none;color:var(--ink);background:var(--card);font-size:14px;cursor:pointer}
.saverow{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.saverow button{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:12px;text-align:left;cursor:pointer}
.saverow b{display:block;font-size:15px}
.saverow span{font-size:13px;color:var(--muted)}
.flash{position:fixed;inset:0;background:#000;opacity:0;pointer-events:none;z-index:50;display:flex;align-items:center;justify-content:center}
.flash.active{opacity:1;pointer-events:auto}
.flash.on{background:#fff}
.flash .stop{position:absolute;bottom:calc(24px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);border:0;border-radius:999px;padding:12px 22px;font:700 16px system-ui;background:#444;color:#fff}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:999px;font-size:14px;opacity:0;transition:opacity .2s;z-index:60;pointer-events:none;max-width:90vw;text-align:center}
.toast.show{opacity:1}
.examples{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
section.info{margin:34px 0}
section.info h2{font-size:21px;margin:0 0 8px;letter-spacing:-.01em}
section.info h3{font-size:16px;margin:18px 0 6px}
section.info p,section.info li{color:var(--ink)}
section.info ul{padding-left:20px}
.charthead{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-bottom:6px}
.chart{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:6px;margin-bottom:12px}
.chart button{border:1px solid var(--line);background:var(--card);border-radius:10px;padding:8px;display:flex;justify-content:space-between;align-items:center;gap:6px;font:600 16px system-ui;cursor:pointer}
.chart button span{font:14px ui-monospace,Menlo,monospace;color:var(--muted);letter-spacing:.05em}
.chart-title{font-size:13px;color:var(--muted);margin:10px 0 6px;font-weight:600;line-height:1.4}
table{border-collapse:collapse;width:100%;font-size:14px}
th,td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600}
td code{font:14px ui-monospace,Menlo,monospace}
footer{color:var(--muted);font-size:13px;padding:24px 0 40px;border-top:1px solid var(--line);margin-top:30px}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media (max-width:380px){ .mode{width:46px} .tools .btn{font-size:12px} }
.nav{display:flex;gap:14px;align-items:center;font-size:14px}
.nav a{color:var(--ink);text-decoration:none;font-weight:600}
.ch .src{font-size:13px;color:var(--ink);opacity:.75;line-height:1}
.ch.k-roman .lt{color:var(--muted);font-style:italic}
.nav{flex-wrap:wrap;justify-content:flex-end;row-gap:4px}
.langs{position:relative}
.langs summary{list-style:none;cursor:pointer;color:var(--muted);font-size:14px;padding:2px 6px;border:1px solid var(--line);border-radius:999px}
.langs summary::-webkit-details-marker{display:none}
.langs[open] div{position:absolute;right:0;top:28px;z-index:20;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:8px;display:grid;grid-template-columns:repeat(2,minmax(120px,1fr));gap:2px;max-height:60vh;overflow:auto;box-shadow:0 8px 24px rgba(0,0,0,.18)}
.langs a{display:block;padding:6px 8px;border-radius:8px;font-weight:500;color:var(--ink);text-decoration:none}
.langs a[aria-current]{background:var(--soft)}
footer a{color:var(--muted)}
@media print{header.top,.controls,.tools,.panel,.examples,.chip,footer,.flash,.toast{display:none!important}body{background:#fff;color:#000}.chart button{border-color:#999}}
.lead{font-size:17px;color:var(--muted);margin:-4px 0 12px}
.h2s{font-size:19px;margin:22px 0 6px}
.cta{margin:18px 0}
.cta a{display:inline-block;text-decoration:none}
.sosbox{padding:22px 12px;text-align:center}
.sosbig{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap}
.sosbig .el{display:block;background:var(--ink);height:22px;border-radius:11px;transition:background .05s}
.sosbig .dot{width:22px}.sosbig .dash{width:62px}.sosbig .gap{width:18px}
.sosbig .el.on{background:var(--accent)}
.soscode{font:700 28px ui-monospace,Menlo,monospace;letter-spacing:.08em;margin-top:12px}
@media (max-width:420px){.sosbig{gap:6px}.sosbig .el{height:16px}.sosbig .dot{width:16px}.sosbig .dash{width:40px}.sosbig .gap{width:10px}}
.related{list-style:none;padding:0;margin:0 0 12px;display:flex;flex-wrap:wrap;gap:6px 14px}
.related a{color:var(--ink);text-decoration:none;font-size:14px}
.related a:hover{text-decoration:underline}
.tablewrap{overflow-x:auto}
td code{font:14px ui-monospace,Menlo,monospace;word-break:break-all}
section.info table .chip{padding:2px 10px}
.relhead{font-weight:700;color:var(--ink);margin:14px 0 6px;font-size:14px}
.tapout{font:700 22px/1.6 ui-monospace,Menlo,monospace;word-break:break-word}
.tapout .g{display:inline-block;margin-right:14px}
.sheet{margin-top:12px;padding:20px;background:#fff;color:#111}
.sheet h2{margin:0 0 4px;font-size:20px}.sheet .meta{color:#555;font-size:13px;margin-bottom:14px}
.sheet ol{padding-left:22px}.sheet li{margin:14px 0;font-size:17px}
.sheet .line{display:inline-block;border-bottom:1px solid #999;min-width:160px;height:1.2em;vertical-align:bottom}
.sheet .code{font:700 18px ui-monospace,Menlo,monospace;letter-spacing:.06em}
.sheet .mini{display:grid;grid-template-columns:repeat(6,1fr);gap:2px 10px;font:13px ui-monospace,Menlo,monospace;margin-top:14px;border-top:1px solid #ddd;padding-top:10px}
.sheet .key{page-break-before:always;margin-top:24px;border-top:2px dashed #bbb;padding-top:12px}
@media print{.noprint,header.top,footer,.lead,h1{display:none!important}.sheet{border:0;margin:0;padding:0}.wrap{max-width:none}}
.lettersgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:6px}
.lettersgrid a{display:flex;justify-content:space-between;border:1px solid var(--line);border-radius:10px;padding:6px 8px;font:14px ui-monospace,Menlo,monospace}
.bigcode{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:6px 0 14px}
.bigcode .sym{font:800 64px/1 system-ui,sans-serif}
.bigcode .code{font:700 40px ui-monospace,Menlo,monospace;letter-spacing:.1em}
.consent{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:70;max-width:620px;margin:0 auto;background:var(--card);color:var(--ink);border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.consent p{margin:0 0 10px;font-size:14px}
.consent-btns{display:flex;gap:8px}
.consent-btns button{flex:1;border:1px solid var(--ink);background:var(--card);color:var(--ink);border-radius:10px;padding:10px;font:700 15px system-ui,sans-serif;cursor:pointer}
body.has-consent{padding-bottom:170px}

/* accessibility pass (research/audits/accessibility-ux.md) */
.card.io:focus-within{outline:3px solid var(--focus);outline-offset:2px}
select,.chip,.mode,.btn,.chart button,.tapkey,.seg,.linkrow a,.linkrow button,.saverow button,.card.io,.keys button,.opts button{border-color:var(--control)}
.flash:not(.active){display:none}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:10px;font-weight:700}
.skip:focus{left:12px}
.setrow .lbl{width:96px;font-size:14px;color:var(--muted);flex:none}
.opts button.right{color:#0b2e14}
@media (max-width:360px){
  .controls{flex-wrap:wrap}.play{flex:1 0 100%}.modes{flex:1}.mode{flex:1;width:auto;min-height:48px}
  .io-foot{flex-wrap:wrap}.io-foot .left{flex:1 0 100%}.io-foot select{max-width:none}
}
.warn{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:80;max-width:560px;margin:0 auto;padding:16px;box-shadow:0 10px 30px rgba(0,0,0,.3)}
.warn .actions{display:flex;gap:8px;margin-top:10px}
.revealbtn{margin:0 0 10px}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;padding:0;margin:2px 0 4px;font-size:13px;color:var(--muted)}
.crumbs li+li::before{content:"›";margin-right:4px}
.crumbs a{color:var(--muted)}

.recent{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:8px}
.recent-list{display:flex;gap:6px;flex-wrap:wrap}
#voice[aria-pressed="true"]{border-color:var(--accent);color:var(--accent)}
.gcode{font:800 56px/1.2 ui-monospace,Menlo,monospace;letter-spacing:.08em;min-height:72px;margin:10px 0}
.gin{display:block;margin:8px auto;width:90px;text-align:center;font:700 28px system-ui,sans-serif;border:2px solid var(--control);border-radius:12px;background:var(--card);color:var(--ink);padding:6px}
.stage .rowstats{display:flex;justify-content:space-between;font-size:14px;color:var(--muted)}
#game.stage{padding:16px;text-align:center}
#game .fb{min-height:24px;font-weight:600;margin:6px 0}
#game .fb.ok{color:var(--ok)}#game .fb.no{color:var(--accent)}
#game .keys{display:grid;grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px;margin-top:12px}
#game .keys button{border:1px solid var(--control);background:var(--card);color:var(--ink);border-radius:10px;padding:12px 0;font:700 18px system-ui,sans-serif;cursor:pointer}
.natoline{font:600 20px/1.5 system-ui,sans-serif;word-break:break-word}
.natocards{display:grid;grid-template-columns:repeat(auto-fill,minmax(112px,1fr));gap:8px;margin-top:12px}
.natocard{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;border:1px solid var(--control);background:var(--card);color:var(--ink);border-radius:12px;padding:8px 10px;cursor:pointer}
.natocard b{font-size:20px}.natocard span{font-weight:600}.natocard small{color:var(--muted);font-size:12px}.natocard code{color:var(--accent);font-size:15px}
.natogap{grid-column:1/-1;height:0}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace}
.raw.big{font-size:18px;color:var(--ink)}
.paddles{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0;user-select:none;-webkit-user-select:none;touch-action:none}
.paddle{min-height:120px;border:2px solid var(--control);background:var(--card);color:var(--ink);border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;cursor:pointer;-webkit-touch-callout:none}
.paddle b{font-size:44px;line-height:1}.paddle small{color:var(--muted);font-size:12px}
.paddle.wide{grid-column:1/-1}.paddle[hidden]{display:none}
.paddles.on .paddle:active,.paddle:active{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 14%,var(--card))}
#keyer .big,#gText{font:700 24px/1.4 ui-monospace,Menlo,monospace;min-height:34px;word-break:break-word}
#gText .ok{color:var(--ok)}#gText .no{color:var(--accent);text-decoration:underline}
#gen input:not([type]),#gen select{flex:1;min-width:0}
#quiz.stage{padding:16px;text-align:center}
#quiz .fb{min-height:24px;font-weight:600;margin:6px 0}#quiz .fb.ok{color:var(--ok)}#quiz .fb.no{color:var(--accent)}
#quiz .opts{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:12px}
#quiz .opts button{border:1px solid var(--control);background:var(--card);color:var(--ink);border-radius:12px;padding:14px;font:700 22px system-ui,sans-serif;cursor:pointer}
#quiz .opts button.mono{font-family:ui-monospace,Menlo,monospace;letter-spacing:.08em}
#quiz .opts button.right{background:var(--ok);color:#fff;border-color:var(--ok)}
#quiz .opts button.wrong{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.qzq{font-weight:600;margin:6px 0}
.cs{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:4px 14px;font:15px/1.5 ui-monospace,Menlo,monospace}
.cs div{display:flex;justify-content:space-between;border-bottom:1px dotted var(--line)}
.cs b{font-family:system-ui,sans-serif}
.cstable td{padding:3px 8px;font-size:14px}
@media print{.cs{grid-template-columns:repeat(4,1fr);font-size:11pt}.cheat .info{break-inside:avoid;margin:6px 0}.cheat h2{font-size:13pt;margin:6px 0 2px}.cstable td{font-size:9pt;padding:1px 6px}.related,.relhead,.crumbs,.consent{display:none!important}}
[hidden]{display:none!important}

.related a{display:inline-block;padding:4px 0}
.panel h2.h3{margin:0 0 8px;font-size:15px}
.card.out,.panel{scroll-margin-bottom:90px}
@media (max-width:420px){.ch{padding:5px 2px}.wrow{gap:2px}}
/* ---------- Navigation ---------- */
.ico{width:20px;height:20px;flex:none;vertical-align:-4px}
.nav .navq{padding:8px 2px}
.nav a[aria-current="page"]{color:var(--accent);text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:2px}
.navtools{display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 14px;border:1px solid var(--control);border-radius:999px;background:var(--card);color:var(--ink)!important;text-decoration:none!important;font-weight:700}
.navtools:hover{border-color:var(--accent)}
@media (max-width:639px){.nav .navq{display:none}}
html.navlock{overflow:hidden}
.navdlg{border:0;padding:0;background:var(--bg);color:var(--ink);width:100%;height:100%;max-width:none;max-height:none;margin:0;display:none;flex-direction:column}
.navdlg[open]{display:flex}
.navdlg::backdrop{background:rgba(0,0,0,.55)}
@media (min-width:700px){.navdlg{width:min(980px,94vw);height:auto;max-height:88vh;margin:5vh auto auto;border-radius:18px;border:1px solid var(--line);box-shadow:0 20px 60px rgba(0,0,0,.35)}}
.navtop{display:flex;gap:8px;align-items:center;padding:12px 16px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg)}
.navsearch{flex:1;display:flex;align-items:center;gap:8px;border:1px solid var(--control);border-radius:12px;padding:0 12px;background:var(--card);min-height:48px}
.navsearch:focus-within{border-color:var(--focus);box-shadow:0 0 0 2px var(--focus)}
.navsearch input{flex:1;min-width:0;border:0;background:transparent;color:var(--ink);font:16px system-ui,sans-serif;padding:12px 0}
.navsearch input:focus-visible{outline:0}
.navclose{min-height:48px;padding:0 14px;border:1px solid var(--control);border-radius:12px;background:var(--card);color:var(--ink);font:600 15px system-ui,sans-serif;cursor:pointer}
.navbody{overflow:auto;padding:8px 16px 16px;flex:1;overscroll-behavior:contain}
.navall{padding:10px 16px;margin:0;border-top:1px solid var(--line)}
.navall a{font-weight:700}
.navcats{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:4px 24px}
.navcat.wide{grid-column:1/-1}
.navcat h2{display:flex;align-items:center;gap:8px;font-size:14px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:14px 0 6px}
.navcat ul,.navres{list-style:none;margin:0;padding:0}
.navcat li a,.navres li a{display:flex;flex-direction:column;gap:1px;padding:8px 10px;margin:0 -10px;border-radius:10px;text-decoration:none;color:var(--ink);min-height:44px;justify-content:center}
.navcat li a:hover,.navres li a:hover,.navcat li a:focus-visible,.navres li a:focus-visible{background:var(--soft)}
.navcat li a b,.navres li a b{font-weight:650}
.navcat li a span,.navres li a span{font-size:13px;color:var(--muted)}
.navcat li a[aria-current]{color:var(--accent)}
.navmini{display:flex;flex-wrap:wrap;gap:6px}
.navcat .navmini li a{display:inline-flex;margin:0;min-height:36px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;font-size:14px}
.navact{display:flex!important;flex-direction:row!important;align-items:center;justify-content:flex-start!important;gap:8px;color:var(--accent)!important}
/* tools page and home task grid */
.toolsearch{padding:6px 12px}
.toolsearch input{width:100%;border:0;background:transparent;color:var(--ink);font:600 20px system-ui,sans-serif;padding:8px 0}
.toolsearch:focus-within{border-color:var(--focus);box-shadow:0 0 0 2px var(--focus)}.toolsearch input:focus-visible{outline:0}
.toolsjump{display:flex;flex-wrap:wrap;gap:4px 12px;font-size:14px}
.toolcat h2{display:flex;align-items:center;gap:8px}
.toolcards,.taskgrid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:8px}
.toolcards a,.taskgrid a{display:flex;flex-direction:column;gap:2px;height:100%;box-sizing:border-box;padding:12px 14px;border:1px solid var(--control);border-radius:14px;background:var(--card);color:var(--ink);text-decoration:none}
.toolcards a:hover,.taskgrid a:hover{border-color:var(--accent)}
.toolcards a span,.taskgrid a span{font-size:13px;color:var(--muted)}
.taskgrid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.taskgrid .ico{color:var(--accent);margin-bottom:4px}
.allnav b{color:var(--accent)}
@media print{.navtools,.navdlg{display:none!important}}
.rpout #rpDraw{overflow-x:auto;color:var(--ink)}
.rpout #rpDraw svg{max-width:100%;height:auto;display:block}
@media print{.rpout{border:0}.rpout #rpDraw{color:#000}}

/* Audit fixes (research/audits/final/accessibility-ux.md) */
.panel.warn,#gen.panel{display:block}
.opts button.right,#quiz .opts button.right{background:var(--ok)!important;color:var(--ok-ink)!important;border-color:var(--ok)!important}
.tools{grid-template-columns:repeat(5,minmax(0,1fr))}
.tools .btn{min-width:0;overflow-wrap:anywhere}
@media (max-width:400px){.mode{width:auto;flex:1;min-width:0;font-size:11px}.modes{flex:1.8;gap:4px;min-width:0}.play{min-width:0}}
@media (max-width:360px){.setrow:has(.seg){flex-wrap:wrap}.setrow .seg{flex:1 0 100%}}
/* semaphore and pigpen */
.smbody{fill:var(--ink)}.smstaff{stroke:var(--ink);stroke-width:3;stroke-linecap:round}.smflag{fill:#e03131;stroke:#f2c200;stroke-width:3}
.smbig{display:flex;flex-direction:column;align-items:center;min-height:190px}.smbig b{font:800 28px system-ui,sans-serif}
.smrow{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.smcell{display:flex;flex-direction:column;align-items:center;border:1px solid var(--control);background:var(--card);color:var(--ink);border-radius:12px;padding:4px 6px;cursor:pointer;font:600 14px system-ui,sans-serif}
.smcell.on{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.smcell.sign{border-style:dashed}
.smtable{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:6px}.smtable .smcell{cursor:default}
.ppout #ppDraw,.ppkey{color:var(--ink);overflow-x:auto}.ppout svg,.ppkey svg{max-width:100%;height:auto;display:block}
.ppdot{fill:currentColor;stroke:none}.pptext{fill:currentColor;stroke:none;font:700 16px system-ui,sans-serif;text-anchor:middle}
.ppkeys{display:grid;grid-template-columns:repeat(auto-fill,minmax(52px,1fr));gap:6px}
.ppkeys button{border:1px solid var(--control);background:var(--card);color:var(--ink);border-radius:10px;padding:4px;cursor:pointer}
.ppkeys svg{width:100%;height:auto;display:block}