/* git-diffs-lie -- shared style (extracted). AI-Assisted. */
:root{
    --bg:#f3f2ee; --card:#fbfbf9; --ink:#17181b; --muted:#6b6f76; --line:#e4e2da;
    --accent:#c21a74; --safe:#1a7a49;
    --tbg:#14161b; --tfg:#cfd3da; --tdim:#727a8a; --twarn:#e0af68;
    --terr:#f7768e; --tnote:#7dcfff; --tadd:#9ece6a; --tdel:#f7768e; --tneut:#c0caf5;
    --mono:ui-monospace,"SF Mono","Cascadia Code",Menlo,Consolas,monospace;
    --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth;scroll-padding-top:76px}
  body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);
    line-height:1.55;-webkit-font-smoothing:antialiased}
  a{color:inherit}
  .wrap{max-width:1080px;margin:0 auto;padding:0 20px}

  header.nav{position:sticky;top:0;z-index:10;background:rgba(243,242,238,.93);
    backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
  .nav > .wrap{display:flex;align-items:center;gap:12px;min-height:56px;position:relative}
  .brand{font-family:var(--mono);font-weight:700;letter-spacing:-.02em;text-decoration:none;display:inline-flex;align-items:center;gap:9px}
  .brand b{color:var(--accent)}
  .brand .brandmark{height:26px;width:auto;display:block}
  footer .ftag .brandmark{height:24px;width:auto;display:block}
  .nav .status{margin-left:12px;display:inline-block;text-decoration:none;font-family:var(--mono);font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:var(--accent);border-radius:5px;padding:3px 8px;white-space:nowrap;box-shadow:0 1px 2px rgba(0,0,0,.18);transition:filter .15s,box-shadow .15s,transform .15s}
  .nav .status:hover{filter:brightness(1.1);box-shadow:0 2px 7px rgba(0,0,0,.3);transform:translateY(-1px)}
  .notice{background:#fbf3f2;border-bottom:1px solid #eccecb;color:#4a3c3b}
  .notice .wrap{padding:11px 20px;font-size:.92rem}
  .notice b{color:var(--accent)}
  /* menu toggle: CSS-only hidden checkbox + label; nav inline on desktop */
  .nav .navtoggle{position:absolute;opacity:0;width:0;height:0;pointer-events:none}
  .nav .menubtn{margin-left:auto;display:inline-block;cursor:pointer;user-select:none;
    font:600 .82rem/1 var(--mono);color:var(--ink);border:1px solid var(--line);
    border-radius:8px;padding:8px 12px}
  .nav .menubtn::before{content:"";display:inline-block;width:15px;height:11px;
    margin-right:8px;vertical-align:-1px;background:linear-gradient(currentColor 0 2px,
    transparent 2px 4.5px,currentColor 4.5px 6.5px,transparent 6.5px 9px,currentColor 9px 11px)}
  .nav .navtoggle:focus-visible + .menubtn{outline:2px solid var(--accent);outline-offset:2px}
  .nav nav a{font-size:.9rem;color:var(--muted);text-decoration:none;white-space:nowrap}
  .nav nav a:hover{color:var(--ink)}
  .nav nav{display:none}
  .nav .navtoggle:checked ~ nav{position:absolute;left:0;right:0;top:100%;display:flex;
    flex-direction:column;align-items:stretch;gap:0;background:var(--bg);z-index:2;
    border-bottom:1px solid var(--line);padding:2px 20px 10px;box-shadow:0 12px 26px rgba(0,0,0,.10)}
  .nav .navtoggle:checked ~ nav a{padding:11px 2px;border-top:1px solid var(--line);
    font-size:1rem;white-space:normal;color:var(--ink)}
  /* click-outside-to-close: invisible full-viewport label under the panel (no JS) */
  .nav .navscrim{display:none}
  .nav .navtoggle:checked ~ .navscrim{display:block;position:fixed;inset:0;z-index:1}
  @media(min-width:821px){
    .nav .menubtn{display:none}
    .nav nav{display:flex;gap:16px;align-items:center;position:static}
  }

  .hero{padding:48px 0 40px}
  .kicker{font-family:var(--mono);font-size:.8rem;letter-spacing:.14em;
    text-transform:uppercase;color:var(--accent);margin:0 0 14px}
  .hero h1{font-size:clamp(2.3rem,7vw,4.4rem);line-height:1.02;letter-spacing:-.03em;text-wrap:balance;
    margin:0 0 18px;font-weight:800}
  .hero h1 .u{text-decoration:underline;text-decoration-color:var(--accent);
    text-underline-offset:6px}
  .hero p.sub{font-size:clamp(1.05rem,2.4vw,1.4rem);color:#2c2e33;max-width:44ch;margin:0 0 26px}
  .cta{display:flex;gap:12px;flex-wrap:wrap}
  .btn{display:inline-block;padding:11px 18px;border-radius:9px;font-weight:650;
    text-decoration:none;font-size:.95rem;border:1px solid var(--ink)}
  .btn.primary{background:var(--ink);color:var(--bg)}
  .btn.ghost{background:transparent;color:var(--ink)}
  .btn:hover{transform:translateY(-1px)}
  .safebar{margin-top:26px;display:inline-flex;align-items:center;gap:10px;
    font-size:.85rem;color:var(--muted);border:1px dashed var(--line);
    padding:8px 13px;border-radius:999px;background:var(--card)}
  .dot{width:8px;height:8px;border-radius:50%;background:var(--safe);display:inline-block}

  .thesis{border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    padding:40px 0;margin-top:24px}
  .thesis .grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
  .thesis h2{font-size:1.15rem;margin:0 0 6px}
  .thesis .see h2{color:var(--muted)} .thesis .real h2{color:var(--accent)}
  .thesis p{margin:0;color:#33353a}
  .legend{margin-top:26px;font-family:var(--mono);font-size:.78rem;color:var(--muted);
    display:flex;gap:16px;flex-wrap:wrap}
  .legend span::before{content:"";display:inline-block;width:9px;height:9px;
    border-radius:2px;margin-right:6px;vertical-align:middle}
  .lg-w::before{background:var(--twarn)} .lg-e::before{background:var(--terr)}
  .lg-n::before{background:var(--tnote)} .lg-neut::before{background:var(--tneut)}

  section.cat{padding:52px 0 8px}
  .cat > .wrap > h2.catname{font-size:.82rem;font-family:var(--mono);letter-spacing:.12em;
    text-transform:uppercase;color:var(--accent);margin:0 0 4px}
  .cat > .wrap > p.catdesc{margin:0 0 18px;color:var(--muted);max-width:60ch}

  .issue{background:var(--card);border:1px solid var(--line);border-radius:14px;
    padding:22px;margin:18px 0;scroll-margin-top:0}
  .issue h3{margin:0 0 4px;font-size:1.3rem;letter-spacing:-.01em}
  .issue .lead{margin:0 0 16px;color:#3a3c41;max-width:66ch}
  .tag{display:inline-block;font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;
    text-transform:uppercase;color:var(--muted);border:1px solid var(--line);
    border-radius:5px;padding:2px 7px;margin-bottom:10px}

  .panes{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .pane{border-radius:11px;overflow:hidden;border:1px solid #23262e}
  .tbar{display:flex;align-items:center;gap:8px;background:#1c1f26;color:#aab0bd;
    font:600 .72rem/1 var(--mono);padding:9px 12px;letter-spacing:.03em}
  .tbar .dots{display:inline-flex;gap:5px}
  .tbar .dots i{width:9px;height:9px;border-radius:50%;background:#3a3f4b;display:inline-block}
  .pane.real .tbar{color:#ffb3ae}
  .pane.real .tbar .dots i:first-child{background:var(--accent)}
  .term{margin:0;background:var(--tbg);color:var(--tfg);font:.8rem/1.6 var(--mono);
    padding:14px 14px;overflow-x:auto;white-space:pre;min-height:150px}
  .term .p{color:#5f6b7e}          /* prompt / comment */
  .term .add{color:var(--tadd)}
  .term .del{color:var(--tdel)}
  .term .dim{color:var(--tdim)}
  .term .w{color:var(--twarn)}
  .term .e{color:var(--terr);font-weight:600}
  .term .n{color:var(--tnote)}
  .term .cp{color:#9aa4bf}
  .term .neut{color:var(--tneut);background:#2a2f45;border-radius:3px;padding:0 2px}
  .term .big{color:#e6b3b0}
  /* contain bidi controls so they can never reorder surrounding page text */
  code,.term{unicode-bidi:isolate}

  .catch{margin:16px 0 0;padding-top:14px;border-top:1px solid var(--line);
    font-size:.95rem;color:#33353a}
  .catch b{color:var(--accent)}

  .outro{padding:60px 0}
  .outro h2{font-size:1.6rem;letter-spacing:-.02em;margin:0 0 10px}
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
  .step{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
  .step h4{margin:0 0 6px;font-size:1rem}
  .step p{margin:0;color:#3a3c41;font-size:.92rem}
  .step .num{font-family:var(--mono);color:var(--accent);font-weight:700}

  .coverage{margin-top:22px;font-family:var(--mono);font-size:.82rem;color:var(--muted)}
  .toolnote{margin:22px 0 0;color:#3a3c41;font-size:.95rem}
  .toolnote a{color:var(--accent)}

  .try .term{min-height:0}
  .try .lead{margin:0 0 16px;color:#3a3c41;max-width:66ch}

  .qa{border-top:1px solid var(--line);padding:18px 2px}
  .qa:last-of-type{border-bottom:1px solid var(--line)}
  .qa h4{margin:0 0 6px;font-size:1.06rem}
  .qa p{margin:0;color:#3a3c41;max-width:72ch}
  .qa a{color:var(--accent)}

footer{border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;margin-top:36px}
footer .ftop{display:flex;gap:40px 56px;flex-wrap:wrap;justify-content:space-between;padding:38px 0 30px}
footer .fbrand .ftag{font-family:var(--mono);font-weight:700;font-size:1.05rem;color:var(--ink);letter-spacing:-.02em}
footer .fbrand .ftag b{color:var(--accent)}
footer .fbrand p{margin:8px 0 0;max-width:26ch;color:var(--muted)}
footer .fcols{display:flex;gap:52px;flex-wrap:wrap}
footer .fcol{display:flex;flex-direction:column;gap:9px}
footer .fcol h4{margin:0 0 3px;font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}
footer .fcol a{color:var(--ink);text-decoration:none;font-size:.88rem}
footer .fcol a:hover{color:var(--accent)}
footer .fbot{display:flex;gap:20px;flex-wrap:wrap;padding:16px 0 44px;border-top:1px solid var(--line);align-items:center}
footer .fbot .sp{margin-left:auto}
footer .fcopy{color:var(--muted);font-size:.84rem}

  @media(max-width:820px){
    .thesis .grid{grid-template-columns:1fr}
    .panes{grid-template-columns:1fr}
    .steps{grid-template-columns:1fr}
    .brand .brandmark{height:22px}
  }

/* "more cases" strips linking folded branches to the full-detail page */
.strip{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 14px;margin:8px 0 0;
  padding:14px 16px;background:var(--card);border:1px dashed var(--line);border-radius:12px;font-size:.92rem}
.strip .lbl{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.strip a{color:#33353a;text-decoration:none;border-bottom:1px solid var(--line)}
.strip a:hover{color:var(--ink)}
.strip .all{margin-left:auto;color:var(--accent);border:0;font-weight:650;white-space:nowrap}
@media(max-width:820px){ .strip .all{margin-left:0} }

.nav nav a.cross{color:var(--ink)}

/* real-world / backdoor annotations on each example card */
.backdoor{margin:12px 0 0;font-size:.93rem;color:#42322f}
.backdoor b{color:var(--accent)}
.wild{margin:7px 0 0;font-size:.87rem;color:var(--muted)}
.wild b{color:var(--accent)} .wild a{color:var(--accent)}
.onrecord{margin:7px 0 0;font-size:.87rem;color:var(--muted)}
.onrecord b{color:var(--muted)} .onrecord a{color:var(--accent)}

/* evidence badges (wild = red, on-record = grey) */
.tag.evi-wild{color:#fff;background:var(--accent);border-color:var(--accent)}
.tag.evi-rec{color:var(--ink);background:var(--line);border-color:var(--line)}
.issue .tag + .tag{margin-left:6px}

/* inline "on this page" table of contents (replaces the old second sticky bar) */
.nav nav a.active{color:var(--ink);font-weight:650}
.toc{margin:0 0 6px;border:1px solid var(--line);border-radius:12px;background:var(--card);padding:13px 16px}
.toc .toch{margin:0 0 9px;font:600 .66rem/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.toc ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 22px}
.toc li{margin:0}
.toc a{font-family:var(--mono);font-size:.82rem;color:var(--ink);text-decoration:none;display:inline-flex;align-items:center;gap:7px}
.toc a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);display:inline-block;flex:0 0 auto;opacity:.55}
.toc a:hover{color:var(--accent)}
.toc a:hover::before{opacity:1}
section{scroll-margin-top:0}

/* plain-language "what is this?" intro box */
.whatis{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.whatis .wrap{padding:22px 20px}
.whatis p{margin:0;max-width:72ch;color:#33353a;font-size:1.02rem}
.whatis b{color:var(--accent)}

/* individually linkable FAQ questions */
.qa h4 a.qanchor{color:inherit;text-decoration:none}
.qa h4 a.qanchor:hover{color:var(--accent)}
.qa h4 a.qanchor::after{content:"#";margin-left:.4em;color:var(--muted);
  font-weight:400;opacity:0;transition:opacity .12s}
.qa h4:hover a.qanchor::after,.qa h4 a.qanchor:focus::after{opacity:.55}
.qa:target{scroll-margin-top:120px}
.qa:target h4 a.qanchor{color:var(--accent)}

/* copy-paste-able command boxes (Try it yourself) -- button is a JS enhancement */
.cmdlabel{font-family:var(--mono);font-size:.78rem;color:var(--muted);margin:16px 0 5px}
.copybox{display:flex;align-items:stretch;margin:7px 0;border:1px solid #23262e;
  border-radius:9px;overflow:hidden;background:var(--tbg)}
.copybox .cmd{flex:1 1 auto;font-family:var(--mono);font-size:.82rem;color:var(--tfg);
  padding:11px 13px;overflow-x:auto;white-space:pre;user-select:all;-webkit-user-select:all}
.copybox .copybtn{flex:0 0 auto;border:0;border-left:1px solid #23262e;background:#1c1f26;
  color:#aab0bd;font:600 .72rem/1 var(--mono);padding:0 15px;cursor:pointer;letter-spacing:.05em}
.copybox .copybtn:hover{background:#262b34;color:#fff}
.copybox .copybtn.ok{color:var(--tadd)}

.brand .logo{display:block;flex:0 0 auto}

/* clickable self-anchor on each example card heading */
.issue h3 a.cardanchor{color:inherit;text-decoration:none}
.issue h3 a.cardanchor:hover{color:var(--accent)}
.issue h3 a.cardanchor::after{content:"#";margin-left:.35em;color:var(--muted);font-weight:400;
  opacity:0;transition:opacity .12s;font-size:.82em}
.issue h3:hover a.cardanchor::after,.issue h3 a.cardanchor:focus::after{opacity:.5}
.issue:target{box-shadow:0 0 0 2px var(--accent);border-color:var(--accent)}
/* reproduce line -- header + a copybox with the git command that demonstrates a card */
.repro{margin:15px 0 0;padding-top:13px;border-top:1px dashed var(--line)}
.repro .reprohd{font-size:.9rem;color:#3a3c41;margin:0 0 7px}
.repro .reprohd b{color:var(--accent)}
.repro .reprohd a{color:var(--accent);white-space:nowrap}
.repro .reprohd .rnote{color:var(--muted)}

/* tidy the footer on small screens (no space-between gaps, tighter columns) */
@media(max-width:700px){
  footer .ftop{justify-content:flex-start;gap:22px 30px;padding:32px 0 22px}
  footer .fbrand{flex-basis:100%}
  footer .fcols{gap:26px 34px}
  footer .fbot{gap:6px 14px;padding:14px 0 32px}
  footer .fbot .sp{margin-left:0}
}

/* clickable self-anchor on section headings (catname + outro h2) */
.catname a.h-anchor,.outro h2 a.h-anchor{color:inherit;text-decoration:none}
.catname a.h-anchor:hover,.outro h2 a.h-anchor:hover{color:var(--accent)}
.catname a.h-anchor::after,.outro h2 a.h-anchor::after{content:"#";margin-left:.3em;
  color:var(--muted);font-weight:400;opacity:0;transition:opacity .12s}
.catname:hover a.h-anchor::after,.outro h2:hover a.h-anchor::after,a.h-anchor:focus::after{opacity:.5}

/* footer brand: logo + wordmark row */
footer .fbrand .ftag{display:inline-flex;align-items:center;gap:8px}
footer .ftag .logo{display:block;flex:0 0 auto}

/* ===================== polish pass ===================== */
/* harmonize the label lines under example cards (one size scale; drop brownish backdoor) */
.catch{font-size:.92rem;color:#3a3c41}
.backdoor{margin:10px 0 0;font-size:.92rem;color:#3a3c41}
.wild,.onrecord{margin:8px 0 0;font-size:.88rem}
/* reproduce line: tighter top space; "Reproduce" reads as a link */
.repro{margin:13px 0 0;padding-top:10px}
.repro .reprohd{margin:0 0 6px}
.repro .reprohd a.repro-try{font-weight:650}
.repro .reprohd .rnote{font-weight:400}
/* footer: same horizontal gutter as the body (was 0 -> content touched the edges) */
footer .ftop{padding-left:20px;padding-right:20px}
footer .fbot{padding-left:20px;padding-right:20px}
/* mobile: more side air; wrap the section sub-nav instead of scrolling it sideways */
@media(max-width:640px){
  .wrap{padding-left:22px;padding-right:22px}
  footer .ftop{padding-left:22px;padding-right:22px}
  footer .fbot{padding-left:22px;padding-right:22px}
  html{scroll-padding-top:76px}
  /* compact top bar so brand + status + toggle fit one row down to 320px */
  .nav .status{font-size:.56rem;padding:3px 7px}
  .nav .menubtn{font-size:0;padding:9px 10px}
  .nav .menubtn::before{margin-right:0}
  .brand .brandmark{height:19px}
}

/* ===================== polish pass 2 ===================== */
/* stack the numbered 1-2-3 steps on small screens (3-across cramps on a phone) */
@media(max-width:820px){ .steps{grid-template-columns:1fr} }
/* reproduce line: "Reproduce" is the primary action; the GitHub link is secondary */
.repro .reprohd a{color:var(--muted)}
.repro .reprohd a.repro-try{color:var(--accent)}
/* footer link columns: even 2-up grid on mobile instead of an uneven wrap */
@media(max-width:640px){ footer .fcols{display:grid;grid-template-columns:1fr 1fr;gap:20px 22px} }

.backdoor a{color:var(--accent)}

/* idiomatic inline code: a subtle chip (copybox .cmd + .term panes keep their own dark styling) */
code{font-family:var(--mono);font-size:.88em;background:rgba(23,24,27,.06);
  padding:.11em .4em;border-radius:5px}
.copybox .cmd{font-size:.82rem;padding:11px 13px;border-radius:0}

/* archive-link icon (Wayback Machine); CSS-masked inline SVG, no external asset */
:root{--archmask:url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%20fill='none'%20stroke='%23000'%20stroke-width='2'%20stroke-linecap='round'%20stroke-linejoin='round'%3E%3Cpath%20d='M3%207.8%2012%203.2%2021%207.8'/%3E%3Cpath%20d='M4%2020.4h16'/%3E%3Cpath%20d='M6.5%2010.6v8M10.5%2010.6v8M14.5%2010.6v8M18.5%2010.6v8'/%3E%3C/svg%3E")}
.arch{display:inline-block;width:.82em;height:.82em;margin-left:3px;vertical-align:-.06em;
  background-color:var(--muted);-webkit-mask:var(--archmask) center/contain no-repeat;
  mask:var(--archmask) center/contain no-repeat;opacity:.75}
.arch:hover{background-color:var(--accent);opacity:1}

footer .fshare{display:flex;align-items:center;gap:8px 12px;flex-wrap:wrap;max-width:1080px;margin:0 auto;padding:6px 20px 12px;font-size:.85rem;color:var(--muted)}
footer .fshare .fshare-l{color:var(--muted)}
footer .fshare .sh{color:var(--ink);text-decoration:none;border:1px solid var(--line);border-radius:7px;padding:4px 10px;background:transparent;cursor:pointer;font:inherit}
footer .fshare .sh:hover{border-color:var(--accent);color:var(--accent)}
footer .fshare .sh-msg{color:var(--safe);font-family:var(--mono);font-size:.8rem}