/* turingcop - styles.
   Layout: a phone app shell. Fixed header on top (wordmark, long-press target, alarm dot),
   scrolling content in the middle, four tabs fixed at the bottom. One column, max 520px.
   All colours are tokens on :root; components never use literal colours.
   No inline styles anywhere: the Content-Security-Policy forbids them. */

@font-face{font-family:"Bricolage Grotesque";src:url("/fonts/BricolageGrotesque-var.woff") format("woff");font-weight:600 800;font-display:swap}
@font-face{font-family:"Figtree";src:url("/fonts/Figtree-var.woff") format("woff");font-weight:400 700;font-display:swap}

:root{
  color-scheme:light;
  --bg:#E9EEF2; --surface:#FFFFFF; --ink:#12212E; --muted:#56687A; --line:#C9D4DD;
  --brass:#99640A; --brass-soft:#F5E6C4; --ok:#1B7248; --ok-soft:#DBF0E4; --bad:#B3261E; --bad-soft:#F9DEDB;
  --signal:#1FA34A; --bezel:#1B2A38; --paper:#FFFFFF; --paper-ink:#1A1D21; --scrim:rgba(10,18,26,.55);
  --display:"Bricolage Grotesque","Avenir Next","Segoe UI",system-ui,sans-serif;
  --body:"Figtree","Segoe UI",system-ui,-apple-system,sans-serif;
  --bar-h:52px; --tabs-h:62px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --bg:#0E1820; --surface:#17242F; --ink:#E6EDF2; --muted:#93A4B2; --line:#2C3D4B;
    --brass:#E2AE4A; --brass-soft:#3A2E14; --ok:#5CC792; --ok-soft:#143524; --bad:#F2817A; --bad-soft:#3E1C1A;
    --signal:#3FCF6B; --bezel:#04080B; --paper:#ECEEF0; --paper-ink:#1A1D21; --scrim:rgba(0,0,0,.65);
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --bg:#0E1820; --surface:#17242F; --ink:#E6EDF2; --muted:#93A4B2; --line:#2C3D4B;
  --brass:#E2AE4A; --brass-soft:#3A2E14; --ok:#5CC792; --ok-soft:#143524; --bad:#F2817A; --bad-soft:#3E1C1A;
  --signal:#3FCF6B; --bezel:#04080B; --paper:#ECEEF0; --paper-ink:#1A1D21; --scrim:rgba(0,0,0,.65);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;height:100%}
body{margin:0;height:100%;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.5;
  overscroll-behavior-y:none;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
h1,h2,h3,p,ul{margin:0}
ul{padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brass);outline-offset:2px}

/* ---------- shell ---------- */
.bar{position:fixed;inset:0 0 auto 0;z-index:5;height:calc(var(--bar-h) + env(safe-area-inset-top,0px));
  padding:env(safe-area-inset-top,0px) 16px 0;display:flex;align-items:center;justify-content:center;
  background:var(--bg);border-bottom:1px solid var(--line);
  user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:none}
.word{font-family:var(--display);font-weight:800;font-size:1.4rem;letter-spacing:-0.02em;line-height:1}
.word span{color:var(--brass)}
/* The alarm dot: small, green, upper right corner. Looks like an ordinary status light. */
.dot{position:absolute;right:calc(14px + env(safe-area-inset-right,0px));top:calc(env(safe-area-inset-top,0px) + 12px);
  width:9px;height:9px;border-radius:50%;background:var(--signal)}

main{max-width:520px;margin:0 auto;
  padding:calc(var(--bar-h) + env(safe-area-inset-top,0px) + 14px) 16px calc(var(--tabs-h) + env(safe-area-inset-bottom,0px) + 24px)}
.view,.pane,.stack{display:flex;flex-direction:column;gap:16px}

.tabs{position:fixed;inset:auto 0 0 0;z-index:5;display:flex;justify-content:center;
  background:var(--surface);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px)}
.tabs button{flex:1 1 0;max-width:130px;height:var(--tabs-h);border:0;background:none;cursor:pointer;color:var(--muted);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:.74rem;font-weight:600}
.tabs svg{width:24px;height:24px}
.tabs button[aria-current="page"]{color:var(--ink)}
.tabs button[aria-current="page"] svg{color:var(--brass)}

.subtabs{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--surface)}
.subtabs button{flex:1 1 0;border:0;background:transparent;color:var(--muted);font-weight:600;font-size:.95rem;
  padding:8px 10px;border-radius:999px;cursor:pointer}
.subtabs button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}

/* ---------- common pieces ---------- */
.block{display:flex;flex-direction:column;gap:8px}
.step{font-size:.78rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.row{display:flex;justify-content:space-between;align-items:center;gap:8px}
.btnrow{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.hint{font-size:.88rem;color:var(--muted)}
.note{background:var(--surface);border:1px dashed var(--line);border-radius:12px;padding:12px;font-size:.92rem;color:var(--muted)}
.empty{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px 16px;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.empty h2{font-family:var(--display);font-weight:600;font-size:1.2rem;line-height:1.2}

.field{width:100%;font-weight:500;font-size:1rem;line-height:1.45;background:var(--surface);border:1px solid var(--line);
  border-radius:12px;padding:10px;display:block}
textarea.field{resize:vertical}
textarea.field[readonly]{background:var(--brass-soft);border-color:var(--brass)}
select.field{appearance:auto;font-weight:600}

.btn{font-weight:600;font-size:.95rem;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 16px;cursor:pointer}
.btn:disabled{opacity:.45;cursor:default}
.btn.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn.danger{color:var(--bad);border-color:var(--bad)}
.btn.small{padding:6px 12px;font-size:.85rem}
.link{border:0;background:none;color:var(--brass);font-weight:600;font-size:.9rem;cursor:pointer;padding:4px 0}
.link:disabled{color:var(--muted);opacity:.5;cursor:default}

.tiles{display:flex;gap:8px}
.tile{flex:1 1 0;min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:10px 4px 8px;
  display:flex;flex-direction:column;align-items:center;gap:2px}
.tile .emo{font-size:2.4rem;line-height:1.15}
.tile .nm{font-size:.8rem;font-weight:600;color:var(--muted);overflow-wrap:anywhere;text-align:center}
.tiles.say .tile{border-color:var(--brass);background:var(--brass-soft)}
.tiles.say .tile .nm{color:var(--ink)}
.tile.empty-slot{border-style:dashed;justify-content:center;min-height:84px;color:var(--muted);font-weight:700}
.tile.ghost{visibility:hidden}
.tiles.small{gap:5px}
.tiles.small .tile{padding:8px 2px 6px;border-radius:11px}
.tiles.small .tile .emo{font-size:1.6rem}
.tiles.small .tile .nm{font-size:.64rem}

.chips{display:flex;gap:6px;flex-wrap:wrap}
.chips button{border:1px solid var(--line);background:var(--surface);color:var(--muted);font-weight:600;font-size:.88rem;
  padding:6px 14px;border-radius:999px;cursor:pointer}
.chips button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}

.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.pic{position:relative;aspect-ratio:1;background:var(--surface);border:1px solid var(--line);border-radius:14px;cursor:pointer;
  font-size:2rem;line-height:1;padding:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}
.pic small{font-size:.66rem;font-weight:600;color:var(--muted)}
.pic[aria-pressed="true"]{border-color:var(--brass);background:var(--brass-soft)}
.pic .ord{position:absolute;top:4px;right:7px;font-size:.75rem;font-weight:700;color:var(--brass)}

.verdict{border-radius:16px;padding:16px 14px;display:flex;flex-direction:column;gap:12px}
.verdict h3{font-family:var(--display);font-weight:600;font-size:1.25rem;line-height:1.2}
.verdict.ok{background:var(--ok-soft);border:1px solid var(--ok)}
.verdict.ok h3{color:var(--ok)}
.verdict.bad{background:var(--bad-soft);border:1px solid var(--bad)}
.verdict.bad h3{color:var(--bad)}
.verdict .when{font-size:.88rem;border-top:1px solid currentColor;padding-top:10px}
.verdict .btn{align-self:flex-start}
.verdict blockquote{margin:0;padding-left:10px;border-left:3px solid currentColor;font-weight:600;overflow-wrap:anywhere;white-space:pre-wrap}

/* The white sheet behind QR codes stays light in both themes: scanners need dark on light. */
.paper{background:var(--paper);color:var(--paper-ink);border:1px solid var(--line);border-radius:8px;padding:14px;
  display:flex;flex-direction:column;gap:8px;align-items:center}
.paper canvas{width:100%;max-width:240px;height:auto;image-rendering:pixelated}
.paper small{font-size:.74rem;font-weight:600;letter-spacing:.04em}

.finder{background:var(--bezel);border-radius:14px;overflow:hidden;aspect-ratio:1}
.finder video{width:100%;height:100%;object-fit:cover;display:block}

/* ---------- pair tab ---------- */
.contacts{display:flex;flex-direction:column;gap:10px}
.contact{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px;display:flex;flex-direction:column;gap:10px}
.contact .name{font-weight:700;font-size:1.05rem;overflow-wrap:anywhere}
.contact .meta{font-size:.82rem;color:var(--muted)}
h2.section{font-family:var(--display);font-weight:600;font-size:1.15rem}
.about{font-size:.82rem;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}

/* ---------- confirmation dialog ---------- */
dialog{border:1px solid var(--line);border-radius:18px;padding:20px;width:min(360px,calc(100vw - 32px));
  background:var(--surface);color:var(--ink)}
dialog::backdrop{background:var(--scrim)}
dialog h2{font-family:var(--display);font-weight:600;font-size:1.2rem;line-height:1.2;margin-bottom:8px;overflow-wrap:anywhere}
dialog p{color:var(--muted);font-size:.95rem;margin-bottom:18px}
dialog .btnrow{justify-content:flex-end}

@media (prefers-reduced-motion:no-preference){
  .btn,.pic,.subtabs button,.chips button{transition:background-color .12s,border-color .12s}
}