/* The Meaning Motive — design system v1 · engineering inspection, not startup gloss */
:root{
  --paper:#FAFAF8; --ink:#1B1B19; --mid:#67675F;
  --line:#D9D9D2; --accent:#7C9E96; --rose:#C9A9A4;
}
*{box-sizing:border-box}
img{max-width:100%;height:auto}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);
  font:17px/1.68 Georgia,'Times New Roman',serif;}
a{color:var(--ink)}
.wrap{max-width:680px;margin:0 auto;padding:0 22px}
/* header */
header.site{border-bottom:1px solid var(--line);}
header.site .bar{max-width:980px;margin:0 auto;padding:14px 22px;
  display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:8px}
.wordmark{font-size:17px;letter-spacing:.14em;text-decoration:none;font-variant:small-caps}
nav.doors a{font:14px Georgia,serif;color:var(--mid);text-decoration:none;margin-left:18px}
nav.doors a:hover,nav.doors a:focus{color:var(--ink);border-bottom:1px solid var(--accent)}
/* masthead humility line */
.masthead{font-size:13px;letter-spacing:.05em;color:var(--mid);
  text-align:center;padding:10px 22px;border-bottom:1px solid var(--line);background:#fff}
/* hero */
.hero{padding:9vh 0 5vh}
.hero h1{font-size:clamp(30px,5.4vw,44px);font-weight:normal;line-height:1.22;margin:0 0 18px;letter-spacing:.005em}
.hero .lede{font-size:19px;color:var(--mid)}
/* doors */
.doorgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin:44px 0}
.door{border:1px solid var(--line);background:#fff;padding:18px 18px 16px;text-decoration:none;display:block;
  transition:border-color .12s}
.door:hover,.door:focus{border-color:var(--accent);outline:none}
.door b{display:block;font-size:17px;margin-bottom:6px;font-variant:small-caps;letter-spacing:.06em}
.door span{font-size:14.5px;color:var(--mid);font-style:italic}
/* prose */
.prose p{margin:0 0 1.25em}
.prose h2{font-size:22px;font-weight:normal;font-variant:small-caps;letter-spacing:.07em;margin:2.2em 0 .7em;
  border-bottom:1px solid var(--line);padding-bottom:6px}
.prose blockquote{margin:1.4em 0;padding:2px 0 2px 18px;border-left:3px solid var(--accent);font-style:italic;color:var(--mid)}
.kicker{font:13px ui-monospace,Menlo,Consolas,monospace;letter-spacing:.16em;color:var(--accent);margin-bottom:12px}
.heart{font-size:20px;font-style:italic;text-align:center;margin:64px auto 56px;max-width:520px;line-height:1.5}
.heart:before,.heart:after{content:"";display:block;width:64px;height:1px;background:var(--accent);margin:18px auto}
/* plate + footer */
.plate-inline{font:13px/1.7 ui-monospace,Menlo,Consolas,monospace;color:var(--mid)}
.plate-inline a{color:var(--mid)}
footer.site{border-top:1px solid var(--line);margin-top:40px;padding:26px 22px 32px;
  text-align:center;font-size:13px;color:var(--mid)}
footer.site .step{font-style:italic;margin-bottom:8px}
footer.site nav{margin-top:10px}
footer.site nav a{color:var(--mid);margin:0 8px}
.btn{display:inline-block;border:1px solid var(--ink);background:#fff;padding:12px 22px;
  font:16px Georgia,serif;text-decoration:none;margin:6px 8px 6px 0}
.btn:hover,.btn:focus{background:var(--accent);border-color:var(--accent);color:#fff;outline:none}
.btn.primary{background:var(--ink);color:#fff}
.btn.primary:hover,.btn.primary:focus{background:var(--accent);border-color:var(--accent)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* front-page crest */
.crest{display:block;margin:0 auto 30px;width:min(64%,340px);height:auto}

/* ============================================================
   v2 extensions · six-door rebuild · 19 August 2026
   Same designer, same day: tokens above are untouched.
   Additions: two-family status tags, six-door navigation,
   footer sitemap, hub cards, skip link, bridge log.
   ============================================================ */

/* --- skip link (keyboard first) --- */
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;
  padding:10px 16px;font:14px Georgia,serif;z-index:99}
.skip:focus{left:0}

/* --- status tags: two families plus one instrument badge.
   The family is carried by SHAPE, never colour alone:
   research status = square-cornered, solid left bar (what we are doing);
   evidence status = rounded pill, dashed border (what we know);
   instrument badge = hatched plate (site machinery).
   Usage: <span class="tag research">RUNNING</span>
          <span class="tag evidence">CONJECTURE</span>
          <span class="tag badge">UNDER CONSTRUCTION</span>          --- */
.tag{display:inline-block;font:11px ui-monospace,Menlo,Consolas,monospace;
  letter-spacing:.14em;padding:2px 9px;vertical-align:middle;white-space:nowrap;
  color:var(--ink);background:#fff}
.tag.research{border:1px solid var(--ink);border-left:5px solid var(--ink)}
.tag.evidence{border:1px dashed var(--mid);border-radius:999px;color:var(--mid)}
.tag.badge{border:1px solid var(--line);
  background:repeating-linear-gradient(45deg,#fff,#fff 4px,#EFEFE9 4px,#EFEFE9 6px)}
/* optional accent, decoration only: the word and the shape carry the meaning */
.tag.good{border-color:var(--accent)}
.tag.open{border-color:var(--rose)}

/* --- six-door header --- */
header.site .bar{align-items:center}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;
  font:14px Georgia,serif;padding:7px 14px;cursor:pointer}
.nav-toggle[aria-expanded="true"]{border-color:var(--accent)}
nav.doors6{display:flex;gap:2px;flex-wrap:wrap}
nav.doors6 ul{list-style:none;margin:0;padding:0;display:flex;gap:2px;flex-wrap:wrap}
nav.doors6 li{position:relative}
nav.doors6 .doorlink{display:inline-block;font:14px Georgia,serif;color:var(--mid);
  text-decoration:none;padding:8px 11px;font-variant:small-caps;letter-spacing:.05em}
nav.doors6 .doorlink:hover,nav.doors6 .doorlink:focus{color:var(--ink);
  box-shadow:inset 0 -2px 0 var(--accent);outline:none}
nav.doors6 li.active>.doorlink{color:var(--ink);box-shadow:inset 0 -2px 0 var(--accent)}
nav.doors6 .disclose{display:none}
nav.doors6 .panel{position:absolute;left:0;top:100%;min-width:220px;z-index:50;
  background:#fff;border:1px solid var(--line);border-top:2px solid var(--accent);
  padding:10px 0;margin:0;display:none;box-shadow:0 6px 18px rgba(27,27,25,.07)}
nav.doors6 li:hover>.panel,nav.doors6 li:focus-within>.panel{display:block}
nav.doors6 .panel a{display:block;font:14.5px Georgia,serif;color:var(--ink);
  text-decoration:none;padding:6px 16px}
nav.doors6 .panel a:hover,nav.doors6 .panel a:focus{background:var(--paper);
  color:var(--ink);box-shadow:inset 3px 0 0 var(--accent);outline:none}
nav.doors6 .panel .rel{display:block;font:12px ui-monospace,Menlo,Consolas,monospace;
  letter-spacing:.1em;color:var(--accent);padding:2px 16px 8px}

/* mobile: doors become an accordion */
@media (max-width:760px){
  .nav-toggle{display:inline-block}
  nav.doors6{display:none;width:100%}
  nav.doors6.open{display:block;border-top:1px solid var(--line);margin-top:8px;padding-top:6px}
  nav.doors6 ul{display:block}
  nav.doors6 li{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between}
  nav.doors6 .doorlink{font-size:16px;padding:10px 4px}
  nav.doors6 .disclose{display:inline-block;border:1px solid var(--line);background:#fff;
    font:13px ui-monospace,monospace;width:32px;height:28px;cursor:pointer;color:var(--mid)}
  nav.doors6 .disclose[aria-expanded="true"]{border-color:var(--accent);color:var(--ink)}
  nav.doors6 .panel{position:static;display:none;width:100%;border:none;
    border-left:2px solid var(--line);box-shadow:none;margin:0 0 8px 6px;padding:2px 0}
  nav.doors6 li.openpanel>.panel{display:block}
  nav.doors6 li:hover>.panel{display:none}
  nav.doors6 li.openpanel:hover>.panel{display:block}
}

/* --- footer sitemap: six columns mirroring the doors --- */
footer.site{text-align:left}
.footmap{max-width:980px;margin:0 auto 26px;display:grid;gap:22px 18px;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
.footmap h3{font:14px Georgia,serif;font-variant:small-caps;letter-spacing:.07em;
  margin:0 0 2px;font-weight:normal}
.footmap h3 a{color:var(--ink);text-decoration:none}
.footmap h3 a:hover{border-bottom:1px solid var(--accent)}
.footmap .rel{font-style:italic;color:var(--mid);font-size:12.5px;margin:0 0 8px}
.footmap ul{list-style:none;margin:0;padding:0}
.footmap li{margin:0 0 4px}
.footmap a{color:var(--mid);text-decoration:none;font-size:13px;margin:0}
.footmap a:hover,.footmap a:focus{color:var(--ink);border-bottom:1px solid var(--accent)}
.footmeta{max-width:980px;margin:0 auto;text-align:center;
  border-top:1px solid var(--line);padding-top:20px}

/* --- hub pages: relationship line and cards --- */
.relline{font:13px ui-monospace,Menlo,Consolas,monospace;letter-spacing:.16em;
  color:var(--accent);margin:0 0 10px}
.hubgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  gap:14px;margin:34px 0}
.hubgrid .door b{font-size:16px}
.hubgrid .door .tagline{display:block;margin-top:8px}

/* --- bridge log (homepage) --- */
.bridgelog{border:1px solid var(--line);background:#fff;margin:34px 0;padding:16px 20px}
.bridgelog dt{font:12px ui-monospace,Menlo,Consolas,monospace;letter-spacing:.14em;
  color:var(--accent);margin-top:10px}
.bridgelog dt:first-child{margin-top:0}
.bridgelog dd{margin:2px 0 0;font-size:15.5px}
.bridgelog dd .date{color:var(--mid);font-size:13px}

/* --- header block card (research tree branches) --- */
.branchcard{border:1px solid var(--line);border-left:4px solid var(--ink);
  background:#fff;padding:14px 18px;margin:18px 0;font-size:14.5px}
.branchcard dt{font:11px ui-monospace,Menlo,Consolas,monospace;letter-spacing:.14em;
  color:var(--mid);float:left;clear:left;width:9.5em;padding-top:2px}
.branchcard dd{margin:0 0 6px 10em}

/* --- motion and print discipline --- */
@media (prefers-reduced-motion:reduce){
  nav.doors6 .panel{transition:none}
}
@media print{
  header.site,footer.site .footmap,.nav-toggle{display:none}
  body{font-size:12pt}
}