/* demosaas.com — its own sheet (site.py "own_css"), not a theme of assets/site.css.
 *
 * DIRECTION (2026-10-09): a MARKED-UP TEST WORKSHEET. The site is about trying software instead of
 * reading about it, so the page behaves like the sheet you would have beside you while doing that:
 * numbered sections in the margin like a procedure, boxes you can actually tick, tables that
 * separate what was SEEN from what was SAID, and a highlighter pulled across the one phrase per
 * section that matters. Two pens only — ballpoint blue for anything written in (links, ticks,
 * margin notes) and a yellow highlighter for emphasis. A strip of ruler ticks under the masthead,
 * because the subject is measurement.
 *
 * Deliberately unlike its siblings: the shared sheet is cards on a tinted ground; wiremanufacturers
 * is a serif supplier register with a copper rule. This one is a heavy grotesque on graph paper.
 * No cards, no shadows, no gradient hero, no icons in circles, no rounded pills.
 *
 * Nothing is fetched: system faces only. The checklist prints (see @media print).
 */
:root{
  --paper:#f5f6f2;--sheet:#ffffff;--ink:#111418;--mute:#575d66;--rule:#c9cdc6;--faint:#e3e6df;--grid:#e6e9e2;
  --pen:#1b3fd6;--pen-ink:#1532b0;--hl:#ffe24a;--hl-ink:#111418;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","Cascadia Mono","Roboto Mono","DejaVu Sans Mono",Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#101214;--sheet:#16191c;--ink:#ecebe6;--mute:#9a9fa6;--rule:#363b40;--faint:#22262a;--grid:#1b1f22;
  --pen:#8ea6ff;--pen-ink:#a9bbff;--hl:#6b5a00;--hl-ink:#fff3b0;color-scheme:dark}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 var(--sans);text-rendering:optimizeLegibility}
a{color:var(--pen-ink);text-decoration-thickness:1.5px;text-underline-offset:.2em}
a:hover{color:var(--ink);text-decoration-color:var(--pen)}
:focus-visible{outline:2px solid var(--pen);outline-offset:3px}
.wrap{max-width:1080px;margin:0 auto;padding:0 28px}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:var(--ink);color:var(--paper);padding:8px 12px;z-index:9}
mark{color:inherit;background:linear-gradient(transparent 52%,var(--hl) 52% 94%,transparent 94%);padding:0 .12em;margin:0 -.12em}
@media (prefers-color-scheme:dark){mark{color:var(--hl-ink)}}

/* ── masthead, then a ruler ─────────────────────────────────── */
.top{background:var(--paper)}
.top::after{content:"";display:block;height:9px;border-top:1.5px solid var(--ink);
  background:
    repeating-linear-gradient(90deg,var(--ink) 0 1.5px,transparent 1.5px 60px) 0 0/100% 9px no-repeat,
    repeating-linear-gradient(90deg,var(--mute) 0 1px,transparent 1px 12px) 0 0/100% 5px no-repeat}
.bar{display:flex;align-items:center;gap:24px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;flex:none}
.brand svg{width:30px;height:30px;flex:none}
.brand span{font:800 19px/1 var(--sans);letter-spacing:-.02em}
.brand span b{font-weight:400;color:var(--mute)}
.nav{margin-left:auto;display:flex;flex-wrap:wrap;gap:2px 20px;justify-content:flex-end}
.nav a{font:500 14.5px/1 var(--sans);color:var(--ink);text-decoration:none;padding:8px 2px}
.nav a:hover{background:linear-gradient(transparent 58%,var(--hl) 58% 92%,transparent 92%)}
.nav a[aria-current]{background:linear-gradient(transparent 58%,var(--hl) 58% 92%,transparent 92%);font-weight:700}
@media (prefers-color-scheme:dark){.nav a:hover,.nav a[aria-current]{color:var(--hl-ink)}}
.navtoggle{display:none;margin-left:auto;background:none;border:1.5px solid var(--ink);width:44px;height:40px;padding:0 10px;cursor:pointer}
.navtoggle span{display:block;height:1.5px;background:var(--ink);margin:6px 0}
svg .bx{fill:none;stroke:var(--ink);stroke-width:2}svg .tk{fill:none;stroke:var(--pen);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
svg .hl{fill:var(--hl)}svg .ln{stroke:var(--rule);stroke-width:1.5}svg .tx{font:600 12px var(--mono);fill:var(--ink)}svg .tm{font:500 11px var(--mono);fill:var(--mute)}

/* ── main ───────────────────────────────────────────────────── */
main{padding:26px 28px 72px}
.crumb{font:500 12px/1.4 var(--mono);color:var(--mute);margin:0 0 6px}
.crumb a{color:var(--mute);text-decoration:none}.crumb a:hover{color:var(--ink);text-decoration:underline}
.kicker{font:600 12.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--pen-ink);margin:0 0 14px}
.kicker::before{content:"\25A0";margin-right:.7em;font-size:.8em;position:relative;top:-1px}

/* hero: graph paper, fading out */
.hero{position:relative;isolation:isolate;margin:0 -28px 8px;padding:44px 28px 40px}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(var(--grid) 1px,transparent 1px) 0 0/24px 24px,linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0/24px 24px;
  -webkit-mask-image:linear-gradient(#000 55%,transparent);mask-image:linear-gradient(#000 55%,transparent)}
.hero h1{font:800 clamp(34px,5.4vw,60px)/1.02 var(--sans);letter-spacing:-.035em;margin:0 0 20px;max-width:17ch;text-wrap:balance}
.hero .lede{font-size:clamp(18px,1.9vw,21px);line-height:1.5;max-width:60ch;margin:0;color:var(--ink)}
.is-home .hero{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.9fr);gap:36px;align-items:center;padding-top:56px;padding-bottom:64px}
.hero figure{margin:0}.hero figure svg{display:block;width:100%;height:auto;background:var(--sheet);border:1.5px solid var(--ink)}
.hero figcaption{font:500 11.5px/1.4 var(--mono);color:var(--mute);margin-top:9px}

/* the document: numbered like a procedure */
.doc{max-width:74ch;margin:0 0 0 clamp(0px,9vw,112px);counter-reset:sec}
.doc h2{position:relative;font:800 clamp(23px,2.5vw,29px)/1.15 var(--sans);letter-spacing:-.022em;margin:58px 0 14px;padding-top:16px;border-top:1.5px solid var(--ink);counter-increment:sec}
.doc h2::before{content:counter(sec,decimal-leading-zero);position:absolute;right:calc(100% + 22px);top:15px;font:500 14px/1.9 var(--mono);color:var(--mute)}
.doc h3{font:700 18.5px/1.3 var(--sans);letter-spacing:-.01em;margin:30px 0 8px}
.doc p,.doc li{max-width:68ch}
.doc p{margin:0 0 16px}
.doc ul,.doc ol{padding-left:1.25em;margin:0 0 18px}
.doc li{margin:0 0 8px}
.doc li::marker{color:var(--mute)}
.doc strong{font-weight:700}

/* margin note: something written beside the sheet in pen */
.note{border-left:3px solid var(--pen);padding:2px 0 2px 18px;margin:24px 0;color:var(--ink)}
.note b:first-child{display:block;font:600 12px/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--pen-ink);margin-bottom:4px}
.note p:last-child{margin-bottom:0}

/* the observation log: seen / said / not shown */
.scroll{overflow-x:auto;margin:22px 0 26px}
table.log{border-collapse:collapse;width:100%;min-width:560px;background:var(--sheet);border:1.5px solid var(--ink);font-size:15.5px;line-height:1.45}
.log th,.log td{text-align:left;vertical-align:top;padding:11px 14px;border-bottom:1px solid var(--rule);border-right:1px solid var(--faint)}
.log tr:last-child td{border-bottom:0}.log th:last-child,.log td:last-child{border-right:0}
.log thead th{font:600 11.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mute);border-bottom:1.5px solid var(--ink);background:var(--paper)}
.log tbody th{font-weight:700;width:24%}

/* boxes you can tick */
.check{list-style:none;padding:0!important;margin:14px 0 26px!important;border-top:1px solid var(--rule)}
.check li{margin:0;max-width:none;border-bottom:1px solid var(--rule)}
.check label{display:grid;grid-template-columns:22px 1fr;gap:14px;align-items:start;padding:11px 4px;cursor:pointer}
.check label:hover{background:var(--sheet)}
.check input{appearance:none;-webkit-appearance:none;width:20px;height:20px;margin:3px 0 0;border:1.75px solid var(--ink);background:var(--sheet);border-radius:0;cursor:pointer;display:grid;place-content:center}
.check input::after{content:"";width:11px;height:6px;border-left:3px solid var(--pen);border-bottom:3px solid var(--pen);transform:translateY(-2px) rotate(-47deg) scale(0);transition:transform .08s}
.check input:checked::after{transform:translateY(-2px) rotate(-47deg) scale(1)}
.check input:checked+span{color:var(--mute)}
.check small{display:block;color:var(--mute);font-size:14.5px;line-height:1.45;margin-top:2px}
.printbar{font:500 12.5px/1.5 var(--mono);color:var(--mute);margin:0 0 6px}

/* numbered steps with weight */
.steps{list-style:none;padding:0!important;counter-reset:st;margin:18px 0 26px!important}
.steps>li{counter-increment:st;position:relative;padding:0 0 4px 52px;margin:0 0 18px;max-width:68ch}
.steps>li::before{content:counter(st);position:absolute;left:0;top:-3px;font:800 30px/1 var(--sans);letter-spacing:-.04em;color:var(--pen-ink)}
.steps>li>b:first-child{display:block;font-size:17.5px;margin-bottom:3px}

/* glossary */
.gloss{margin:10px 0 0}
.gloss dt{font:700 17.5px/1.3 var(--sans);margin:24px 0 4px;padding-top:14px;border-top:1px solid var(--rule)}
.gloss dd{margin:0;max-width:68ch}

/* home: the run sheet (an index, not a grid of cards) */
.run{list-style:none;padding:0;margin:8px 0 0;counter-reset:run;border-top:1.5px solid var(--ink)}
.run li{counter-increment:run;border-bottom:1px solid var(--rule)}
.run a{display:grid;grid-template-columns:54px minmax(0,19ch) minmax(0,1fr) 24px;gap:6px 22px;align-items:baseline;padding:17px 4px;color:var(--ink);text-decoration:none}
.run a::before{content:counter(run,decimal-leading-zero);font:500 13.5px/1.7 var(--mono);color:var(--mute)}
.run a::after{content:"\2192";font:500 18px/1.2 var(--sans);color:var(--pen);transition:transform .12s}
.run a:hover{background:var(--sheet)}.run a:hover::after{transform:translateX(4px)}
.run b{font:800 19px/1.25 var(--sans);letter-spacing:-.018em}
.run span{color:var(--mute);font-size:15.5px;line-height:1.45}
.home-h{font:600 12.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin:44px 0 12px}
.rules{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin:8px 0 0;border:1.5px solid var(--ink);background:var(--sheet)}
.rules div{padding:20px 22px;border-right:1px solid var(--rule)}.rules div:last-child{border-right:0}
.rules h3{font:800 17.5px/1.25 var(--sans);letter-spacing:-.012em;margin:0 0 7px}
.rules p{margin:0;font-size:15.5px;line-height:1.5;color:var(--mute)}
.rules p b{color:var(--ink)}

.updated{font:500 12px/1.5 var(--mono);color:var(--mute);margin:44px 0 0 clamp(0px,9vw,112px)}

/* next action: the one inverted block on the page */
.cta{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;margin:40px 0 0;padding:26px 28px;background:var(--ink);color:var(--paper)}
.cta-k{font:600 12px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;margin:0 0 6px;opacity:.72}
.cta-t{margin:0;max-width:56ch;font-size:16.5px;line-height:1.5}
.btn{display:inline-block;background:var(--hl);color:#111418;font:700 15.5px/1 var(--sans);text-decoration:none;padding:14px 20px;border:1.5px solid #111418;white-space:nowrap}
.btn:hover{background:#fff;color:#111418}
@media (prefers-color-scheme:dark){.btn{background:#ffe24a}}

/* ── the directory: one card of facts per listed demo ───────── */
.doc.wide{max-width:none;min-width:0}.doc.wide p,.doc.wide li{max-width:74ch}
.find{display:grid;grid-template-columns:minmax(0,2fr) repeat(3,minmax(0,1fr));gap:14px 16px;align-items:end;margin:0 0 6px;padding:16px 18px;background:var(--sheet);border:1.5px solid var(--ink)}
.find label{display:block;font:600 11.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.find input,.find select{display:block;width:100%;margin-top:6px;font:400 16px/1.2 var(--sans);color:var(--ink);background:var(--paper);border:1.5px solid var(--ink);border-radius:0;padding:10px 11px;height:44px}
.find .count{grid-column:1/-1;margin:0;font:500 12.5px/1.4 var(--mono);color:var(--mute)}
.none{border:1.5px dashed var(--rule);padding:18px 20px;margin:14px 0;color:var(--mute)}
.demos{display:grid;grid-template-columns:minmax(0,1fr);gap:22px;margin:14px 0 8px}
.demo{min-width:0;background:var(--sheet);border:1.5px solid var(--ink);padding:24px 26px 22px}
.demo[hidden]{display:none}
.demo header{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 20px;margin-bottom:6px}
.demo h3{font:800 25px/1.15 var(--sans);letter-spacing:-.025em;margin:0}
.tags{margin:0!important;display:flex;flex-wrap:wrap;gap:6px}
.tags span{font:600 11.5px/1 var(--mono);letter-spacing:.05em;text-transform:uppercase;color:var(--ink);border:1px solid var(--ink);padding:5px 7px}
.demo .sum{font-size:17.5px;margin:0 0 12px!important;max-width:70ch}
.own{font:500 12.5px/1.5 var(--mono);color:var(--pen-ink);margin:0 0 12px!important}
.kind{display:flex;flex-wrap:wrap;gap:0;margin:14px 0 0;border-top:1.5px solid var(--ink)}
.kind div{padding:11px 26px 12px 0;margin-right:26px;border-right:1px solid var(--rule)}.kind div:last-child{border-right:0;margin-right:0}
.kind dt{font:600 11.5px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mute)}
.kind dd{margin:3px 0 0;font-weight:700}
.demo .scroll{margin:6px 0 16px}
.facts{background:var(--paper)!important}
.facts tbody th{width:22%}.facts td:last-child{width:21%;font:600 12px/1.45 var(--mono);white-space:nowrap}
.b-checked{color:var(--pen-ink)}.b-checked::before{content:"";display:inline-block;width:9px;height:5px;border-left:2.5px solid var(--pen);border-bottom:2.5px solid var(--pen);transform:translateY(-3px) rotate(-47deg);margin-right:8px}
.b-stated{color:var(--mute)}.b-stated::before{content:"\201C";margin-right:6px;font:700 15px/0 var(--sans)}
.cannot{border-left:3px solid var(--hl);padding-left:16px;margin:0 0 18px!important;max-width:74ch}
@media (prefers-color-scheme:dark){.cannot{border-left-color:#ffe24a}}
.cannot b{display:block;font:600 12px/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin-bottom:2px}
.go{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;margin:0!important}
.open{display:inline-block;background:var(--ink);color:var(--paper);font:700 15.5px/1 var(--sans);text-decoration:none;padding:14px 20px;border:1.5px solid var(--ink)}
.open:hover{background:var(--hl);color:#111418;border-color:#111418}
.more{font-size:15px}
.run.solo{border-bottom:0}.run.solo u{text-decoration-color:var(--pen);text-underline-offset:.2em}
@media (max-width:860px){.find{grid-template-columns:1fr 1fr}.find label:first-child{grid-column:1/-1}.demo{padding:20px 18px}.kind div{padding-right:18px;margin-right:18px}.facts td:last-child{white-space:normal}}

/* ── footer ─────────────────────────────────────────────────── */
.foot{border-top:1.5px solid var(--ink);padding:36px 0 44px;font-size:14.5px;color:var(--mute)}
.fgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:40px}
.fname{font:800 17px/1.2 var(--sans);letter-spacing:-.02em;color:var(--ink);margin:0 0 8px}
.fabout p{margin:0;max-width:44ch}
.flinks{columns:2;column-gap:32px}
.flinks a{display:block;color:var(--ink);text-decoration:none;padding:3px 0;break-inside:avoid}
.flinks a:hover{text-decoration:underline;text-decoration-color:var(--pen)}
.disclose{margin:28px 0 8px;padding-top:18px;border-top:1px solid var(--rule);max-width:92ch}
.legal{margin:0;font:500 12px/1.6 var(--mono)}.legal a{color:var(--mute)}

/* ── small screens ──────────────────────────────────────────── */
@media (max-width:860px){
  .is-home .hero{grid-template-columns:1fr;padding-top:36px;padding-bottom:44px}
  .doc,.updated{margin-left:0}
  .doc h2::before{position:static;display:block;line-height:1.2;margin-bottom:6px}
  .rules{grid-template-columns:1fr}.rules div{border-right:0;border-bottom:1px solid var(--rule)}.rules div:last-child{border-bottom:0}
  .run a{grid-template-columns:38px minmax(0,1fr) 20px}.run span{grid-column:2}
  .fgrid{grid-template-columns:1fr;gap:24px}
  .navtoggle{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:70px;background:var(--paper);border-bottom:1.5px solid var(--ink);padding:10px 28px 16px;flex-direction:column;z-index:5}
  .nav.open{display:flex}.nav a{padding:11px 0}
  .top{position:relative}
}
@media (max-width:520px){.wrap{padding:0 20px}main{padding:20px 20px 56px}.hero{margin:0 -20px 8px;padding-left:20px;padding-right:20px}.flinks{columns:1}}

/* ── print: the checklist is meant to leave the screen ──────── */
@media print{
  :root{--paper:#fff;--sheet:#fff;--ink:#000;--mute:#444;--rule:#999;--faint:#ccc;--grid:transparent;--pen:#000;--pen-ink:#000;--hl:transparent}
  .top::after,.nav,.navtoggle,.cta,.flinks,.fabout,.skip,.crumb,.printbar,.find{display:none!important}
  body{font-size:11.5pt}.hero{padding:0 28px 12px}.hero::before{display:none}.hero h1{font-size:24pt}
  .doc{margin-left:0;max-width:none}.doc h2{margin-top:22pt;break-after:avoid}.doc h2::before{position:static;margin-right:.6em}
  .check li{break-inside:avoid}.check input:checked+span{color:#000}
  a{color:#000;text-decoration:none}.foot{border-top:1px solid #000;padding:12pt 0}
}
@media (max-width:520px){.kind{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.kind div{border-right:0;margin-right:0;padding-right:0}}

/* ── the badge page ─────────────────────────────────────────── */
.badges{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin:26px 0 0}
.badges img{display:block}.badges span{display:block;background:#101214;padding:14px}
.snip{border:1.5px solid var(--ink);background:var(--sheet);padding:18px 20px 8px;margin:16px 0}
.snip h3{margin:0 0 6px!important}
.snip pre{margin:0 0 14px;padding:12px 14px;background:var(--paper);border:1px solid var(--rule);overflow-x:auto;font:500 13px/1.55 var(--mono);white-space:pre-wrap;word-break:break-all;user-select:all}