/* IMDTouch Knowledge Base: "field manual" editorial look. Self-hosted only: no web fonts, no external hosts, no scripts. */
:root{--paper:#f6f3ec;--ink:#1d2320;--muted:#555d58;--accent:#0f6b62;--accent-ink:#0b524b;--amber:#b8640a;--amber-ink:#7c4304;--rule:#d9d3c5;--tint:#ebe7dc;--code:#ece8dd;--serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;--sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
@media (prefers-color-scheme:dark){:root{--paper:#121614;--ink:#e7e4dc;--muted:#a3aba6;--accent:#4fc3b5;--accent-ink:#7fd6cb;--amber:#d98a2b;--amber-ink:#e6b36a;--rule:#2d3632;--tint:#1a201d;--code:#1c2320}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:1rem}
body{margin:0;background:var(--paper);color:var(--ink);font:1rem/1.6 var(--sans);-webkit-font-smoothing:antialiased}
.wrap{max-width:68rem;margin:0 auto;padding:0 1.25rem}
a{color:var(--accent-ink);text-underline-offset:.18em;text-decoration-thickness:.07em}
a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--paper);padding:.6rem 1rem;z-index:10}
.skip:focus{left:.5rem;top:.5rem}
img{max-width:100%;height:auto}

/* header and footer */
.top{border-bottom:3px double var(--rule);padding:1rem 0 .4rem}
.bar{display:flex;align-items:center;gap:.9rem;flex-wrap:wrap}
.brand{display:inline-flex;line-height:0}
.tag{font:600 .72rem/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);border-left:1px solid var(--rule);padding-left:.9rem}
.topics ul{list-style:none;margin:.7rem 0 0;padding:0;display:flex;flex-wrap:wrap;gap:.2rem 1.2rem}
.topics a{display:inline-block;padding:.3rem 0;font:600 .78rem/1.2 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent}
.topics a:hover,.topics a[aria-current]{color:var(--accent-ink);border-bottom-color:var(--accent)}
main,main.wrap{padding-top:2.2rem;padding-bottom:3.5rem;min-height:60vh}
.foot{border-top:3px double var(--rule);padding:1.4rem 0 2.2rem;color:var(--muted);font-size:.88rem}
.foot .wrap{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;align-items:baseline}
.foot p{margin:0}
.totop{font:600 .75rem/1 var(--sans);letter-spacing:.12em;text-transform:uppercase}

/* headings, labels */
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.2;margin:0 0 .6rem;letter-spacing:-.005em}
h1{font-size:clamp(1.9rem,4.5vw,2.7rem)}
h2{font-size:1.5rem;margin-top:2.2rem}
h3{font-size:1.2rem}
.kind{margin:0 0 .35rem;font:700 .7rem/1.2 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--accent-ink)}
.meta{margin:0;color:var(--muted);font:.84rem/1.5 var(--sans)}
.lede{font:1.15rem/1.6 var(--serif);color:var(--muted);max-width:42rem;margin:0 0 1.6rem}
.col{max-width:48rem}
.empty{border:1px dashed var(--rule);padding:1.4rem;color:var(--muted);background:var(--tint)}
.btn{display:inline-block;background:var(--accent);color:var(--paper);padding:.65rem 1.1rem;border-radius:2px;text-decoration:none;font:700 .8rem/1 var(--sans);letter-spacing:.1em;text-transform:uppercase}
.btn:hover{background:var(--accent-ink);color:var(--paper)}
.crumbs{font:600 .74rem/1.4 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 1.2rem}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--accent-ink);text-decoration:underline}

/* browse by topic */
.bytopic h2{font:700 .72rem/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 .6rem}
.chips{list-style:none;margin:0 0 1.8rem;padding:0;display:flex;flex-wrap:wrap;gap:.5rem}
.chips a{display:inline-block;padding:.35rem .8rem;border:1px solid var(--rule);border-radius:99px;text-decoration:none;font:600 .82rem/1.3 var(--sans);color:var(--ink);background:var(--tint)}
.chips a:hover{border-color:var(--accent);color:var(--accent-ink)}

/* the ledger: hairline-separated rows */
.ledger{list-style:none;margin:0;padding:0;border-top:2px solid var(--ink)}
.row{display:grid;grid-template-columns:9.75rem 1fr;gap:1rem;padding:1.05rem 0;border-bottom:1px solid var(--rule)}
.row .kind{margin:.35rem 0 0}
.row h3{font-size:1.25rem;margin:0 0 .3rem}
.row h3 a{color:var(--ink);text-decoration:none}
.row h3 a:hover{color:var(--accent-ink);text-decoration:underline;text-decoration-thickness:.07em}
.row .sum{margin:0 0 .4rem;color:var(--ink);opacity:.86;max-width:44rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-clamp:2}
.row.lead{padding:1.5rem 0 1.7rem;border-bottom:2px solid var(--ink)}
.row.lead h3{font-size:clamp(1.55rem,3.4vw,2.1rem);line-height:1.15}
.row.lead .sum{font:1.1rem/1.55 var(--serif);-webkit-line-clamp:3;line-clamp:3}
@media (max-width:640px){.row{grid-template-columns:1fr;gap:0}.row .kind{margin:0 0 .3rem}}
@media (max-width:640px){.topics ul{flex-wrap:nowrap;overflow-x:auto;white-space:nowrap;gap:0 1.1rem;scrollbar-width:none;padding-bottom:.2rem}.topics ul::-webkit-scrollbar{display:none}}

/* pagination: Newer / Older and at most three numbers */
.pager{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin:1.6rem 0 0;font:600 .86rem/1 var(--sans)}
.pager .step{min-width:6rem;text-decoration:none;padding:.6rem .2rem}
.pager .step:last-child{text-align:right}
.pager .step.off{visibility:hidden}
.pages{list-style:none;margin:0;padding:0;display:flex;gap:.35rem}
.num{display:inline-block;min-width:2.3rem;text-align:center;padding:.55rem .5rem;border:1px solid var(--rule);text-decoration:none;color:var(--ink);border-radius:2px}
a.num:hover{border-color:var(--accent);color:var(--accent-ink)}
span.num{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* article page */
.ahead{max-width:48rem;margin:0 0 1.4rem}
.ahead h1{margin-bottom:.8rem}
.ahead .meta span+span::before{content:"\00b7";margin:0 .55rem;color:var(--rule)}
.short{max-width:44rem;border-left:4px solid var(--accent);background:var(--tint);padding:1rem 1.2rem;margin:0 0 2rem}
.short h2{font:700 .7rem/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--accent-ink);margin:0 0 .5rem}
.short p{margin:0;font:1.12rem/1.6 var(--serif)}
.cols{display:block}
.mainc{min-width:0;max-width:68ch}
.toc-m{border:1px solid var(--rule);margin:0 0 1.6rem;background:var(--tint)}
.toc-m summary,.toc h2{font:700 .72rem/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.toc-m summary{cursor:pointer;padding:.9rem 1rem}
.toc-m ol{margin:0;padding:0 1rem 1rem 2.4rem}
.rail{display:none}
@media (min-width:1000px){
  .cols{display:grid;grid-template-columns:minmax(0,68ch) 16rem;gap:3.5rem;align-items:start}
  .toc-m{display:none}
  .rail{display:block;position:sticky;top:1.5rem;max-height:calc(100vh - 3rem);overflow:auto;border-top:2px solid var(--ink);padding-top:.9rem}
  .toc h2{margin:0 0 .7rem}
  .toc ol{list-style:none;margin:0;padding:0}
  .toc li{margin:0 0 .5rem;font:.88rem/1.4 var(--sans)}
  .toc a{color:var(--muted);text-decoration:none}
  .toc a:hover{color:var(--accent-ink);text-decoration:underline}
}

/* prose */
.prose{font-size:1.06rem;line-height:1.7}
.prose h2{margin-top:2.4rem;padding-top:.9rem;border-top:1px solid var(--rule)}
.prose h3{margin-top:1.8rem}
.prose p,.prose ul,.prose ol,.prose table,.prose pre,.prose blockquote{margin:0 0 1.1rem}
.prose a{color:var(--accent-ink);text-decoration:underline}
.prose a.anchor{margin-left:.4rem;text-decoration:none;color:var(--accent);opacity:0;font:600 .9em var(--sans)}
.prose h2:hover .anchor,.prose h3:hover .anchor,.prose a.anchor:focus{opacity:1}
.prose ul{padding-left:1.4rem}
.prose ol{list-style:none;counter-reset:step;padding-left:0}
.prose ol>li{counter-increment:step;position:relative;padding-left:2.6rem;margin:0 0 .8rem}
.prose ol>li::before{content:counter(step);position:absolute;left:0;top:.12em;width:1.8rem;height:1.8rem;border-radius:50%;background:var(--accent);color:var(--paper);font:700 .85rem/1.8rem var(--sans);text-align:center}
.prose li>ol,.prose li>ul{margin-top:.5rem}
.prose blockquote{border-left:4px solid var(--amber);background:var(--tint);padding:.8rem 1.1rem;color:var(--ink)}
.prose blockquote p:last-child{margin-bottom:0}
.prose blockquote strong:first-child{color:var(--amber-ink)}
.prose code{font:.88em ui-monospace,SFMono-Regular,Consolas,Menlo,monospace;background:var(--code);padding:.1em .35em;border-radius:3px}
.prose pre{background:var(--code);border:1px solid var(--rule);padding:1rem;overflow:auto;border-radius:3px;line-height:1.5}
.prose pre code{background:none;padding:0}
.tblwrap{overflow-x:auto;margin:0 0 1.3rem;border:1px solid var(--rule)}
.tblwrap:focus-visible{outline-offset:-3px}
.tbl{border-collapse:collapse;width:100%;font:.92rem/1.45 var(--sans);margin:0}
.tbl th,.tbl td{padding:.6rem .8rem;text-align:left;border-bottom:1px solid var(--rule);vertical-align:top}
.tbl thead th{background:var(--ink);color:var(--paper);font-weight:700;letter-spacing:.03em;white-space:nowrap}
.tbl tbody tr:nth-child(even){background:var(--tint)}

/* FAQ, corrections, keep reading */
.faq h2,.fixes h2,.keep h2{margin-top:2.4rem}
.q{border-bottom:1px solid var(--rule)}
.q:first-of-type{border-top:1px solid var(--rule)}
.q summary{cursor:pointer;padding:.85rem 0;font:700 1.05rem/1.4 var(--serif);list-style:none;display:flex;justify-content:space-between;gap:1rem}
.q summary::-webkit-details-marker{display:none}
.q summary::after{content:"+";color:var(--accent-ink);font:700 1.2rem/1 var(--sans)}
.q[open] summary::after{content:"\2212"}
.q p{margin:0 0 1rem}
.fixes{border-left:4px solid var(--amber);background:var(--tint);padding:.2rem 1.1rem 1rem}
.fixes h2{margin-top:1rem;font-size:1.1rem}
.fixes ul{margin:0;padding-left:1.1rem}
.keep{margin-top:3rem;max-width:68rem}
.keep h2{font:700 .72rem/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 .8rem}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
@media print{
  :root{--paper:#fff;--ink:#000;--muted:#333;--accent-ink:#000;--rule:#999;--tint:#fff;--code:#fff}
  .top .topics,.skip,.rail,.toc-m,.pager,.totop,.chips,.keep,.prose a.anchor{display:none}
  body{font-size:11pt}
  .wrap{max-width:none;padding:0}
  .cols{display:block}
  .prose a{color:#000;text-decoration:underline}
  .q:not([open])>p{display:block}
  .tbl thead th{background:#eee;color:#000}
  .short,.prose blockquote,.fixes{border-left:3px solid #000}
  h2,h3{break-after:avoid}
  pre,.tblwrap,.q{break-inside:avoid}
}