:root{
  --ink:#14161C;
  --ink-2:#1C1F27;
  --ink-soft:#41454F;
  --stone:#E8E7E2;
  --paper:#FAFAF8;
  --seam:#7C6FF7;
  --seam-dim:#9E94F9;
  --moss:#5F6B62;
  --rule:#D6D5CE;
  --rule-dark:#2A2E38;
  --w:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--paper);color:var(--ink);
  font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--w);margin:0 auto;padding:0 28px}
.narrow{max-width:720px}

/* ---------- utility type ---------- */
.mono{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.16em;text-transform:uppercase}
.eyebrow{color:var(--moss);margin-bottom:22px;display:block}
.eyebrow.on-dark{color:var(--seam-dim)}
h1,h2,h3,h4{font-family:'Archivo',sans-serif;font-weight:800;line-height:1.25;letter-spacing:0}
h2{font-size:clamp(30px,5vw,46px);margin-bottom:20px;line-height:1.2}
h3{font-size:clamp(21px,3vw,26px);font-weight:700;margin-bottom:12px}
p+p{margin-top:17px}
a{color:inherit}

/* ---------- masthead ---------- */
.mast{border-bottom:1px solid var(--rule);position:sticky;top:0;background:rgba(250,250,248,.92);
  backdrop-filter:blur(10px);z-index:50}
.mast .wrap{display:flex;align-items:center;justify-content:space-between;height:62px;gap:20px}
.brand{font-family:'Archivo';font-weight:800;font-size:15.5px;letter-spacing:0;text-decoration:none;white-space:nowrap}
.brand em{font-style:normal;color:var(--seam)}
.mast nav{display:flex;gap:22px}
.mast nav a{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--moss);text-decoration:none}
.mast nav a:hover{color:var(--ink)}
@media(max-width:760px){.mast nav{display:none}}

/* ---------- thesis ---------- */
.thesis{padding:clamp(64px,11vw,124px) 0 clamp(52px,8vw,88px)}
.thesis h1{font-size:clamp(40px,8.4vw,88px);max-width:14ch;margin-bottom:26px;line-height:1.15;letter-spacing:-.005em}
.thesis h1 .b{display:block;color:var(--seam)}
.thesis .lede{font-size:clamp(18px,2.3vw,21px);max-width:56ch;color:var(--ink-soft)}
.byline{margin-top:44px;padding-top:22px;border-top:1px solid var(--rule);
  display:flex;flex-wrap:wrap;gap:8px 26px;align-items:baseline}
.byline .n{font-family:'Archivo';font-weight:700;font-size:16px}
.byline .r{color:var(--moss);font-size:14.5px}

/* ---------- generic section ---------- */
section{border-top:1px solid var(--rule)}
.pad{padding:clamp(58px,8vw,96px) 0}
.lead-in{font-size:clamp(19px,2.4vw,23px);line-height:1.5;font-weight:500;max-width:34ch;margin-bottom:26px}
.body-col{max-width:62ch;color:var(--ink-soft)}
.body-col strong{color:var(--ink);font-weight:600}

/* two-column section head */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:clamp(28px,6vw,80px);align-items:start}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:26px}}

/* ---------- the origin ---------- */
.origin{background:var(--stone);border-top:1px solid var(--rule)}
.pull{font-family:'Archivo';font-weight:700;font-size:clamp(22px,3.4vw,32px);line-height:1.4;
  letter-spacing:0;padding-left:22px;border-left:3px solid var(--seam);margin:34px 0}

/* ---------- the gate ---------- */
.gate-state{font-family:'Archivo';font-weight:800;font-size:clamp(26px,4.6vw,42px);line-height:1.35;
  letter-spacing:0;margin-bottom:22px}
.gate-state span{color:var(--seam)}

/* ---------- the spine (dark, glass card grid) ---------- */
.spine{background:var(--ink);color:var(--stone);border-top:0;position:relative;overflow:hidden}
.spine::before,.spine::after{content:"";position:absolute;border-radius:50%;filter:blur(110px);
  pointer-events:none;z-index:0}
.spine::before{width:640px;height:640px;background:var(--seam);opacity:.16;top:-180px;left:-160px}
.spine::after{width:520px;height:520px;background:var(--seam-dim);opacity:.12;bottom:-140px;right:-120px}
.spine .wrap{position:relative;z-index:1}
.spine .eyebrow{color:var(--seam-dim)}
.spine h2{color:#fff}
.spine .intro{max-width:60ch;color:#A9ADB8;margin-bottom:clamp(40px,6vw,64px)}

.cards{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start;border-top:0}
@media(max-width:820px){.cards{grid-template-columns:1fr}}

.card{
  position:relative;border-radius:20px;overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(124,111,247,.05) 55%,rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);
  box-shadow:0 22px 44px -22px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(124,111,247,.4);
  box-shadow:0 28px 52px -18px rgba(0,0,0,.6),0 0 0 1px rgba(124,111,247,.18),0 0 44px -6px rgba(124,111,247,.28)}
.card[open]{border-color:rgba(124,111,247,.45)}

summary.card-front{cursor:pointer;list-style:none;display:flex;flex-direction:column;
  align-items:flex-start;padding:32px 30px 26px;gap:0}
summary.card-front::-webkit-details-marker{display:none}
summary.card-front::marker{content:""}
summary.card-front:focus-visible{outline:2px solid var(--seam);outline-offset:-2px;border-radius:14px}

.card .num{font-family:'IBM Plex Mono';font-size:12px;letter-spacing:.08em;color:var(--seam-dim);
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;
  background:rgba(124,111,247,.16);border:1px solid rgba(124,111,247,.32);margin-bottom:22px}

.statement{display:flex;flex-direction:column;align-items:flex-start;gap:8px;width:100%;
  font-family:'Archivo';font-weight:800;font-size:clamp(21px,2.4vw,28px);letter-spacing:0;
  line-height:1.25;margin-bottom:16px}
.statement .a{color:#fff;text-align:left}
.statement .b{color:#8E93A2;text-align:left}
.statement .hinge{display:inline-flex;align-items:center;font-family:'IBM Plex Mono';font-size:10.5px;
  letter-spacing:.1em;text-transform:uppercase;font-weight:600;color:var(--ink);background:var(--seam);
  padding:3px 11px;border-radius:999px;margin:1px 0;white-space:nowrap}
.statement.solo{color:#fff;text-align:left}

.gloss{color:#9AA0AE;font-size:14.5px;line-height:1.6;text-align:left;max-width:none;margin:0;padding:0}

.toggle{display:flex;justify-content:flex-start;margin-top:20px;width:100%}
@media(max-width:640px){
  .cards{gap:18px}
  summary.card-front{padding:26px 22px 22px}
  .statement{font-size:22px}
}


/* ---------- reserved words ---------- */
.words{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--rule);
  border:1px solid var(--rule);margin-top:34px}
@media(max-width:700px){.words{grid-template-columns:1fr}}
.word{background:var(--paper);padding:clamp(24px,4vw,36px)}
.word .tag{font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--moss);display:block;margin-bottom:14px}
.word h3{margin-bottom:10px}
.word.terminal{background:var(--ink);color:var(--stone)}
.word.terminal h3{color:#fff}
.word.terminal .tag{color:var(--seam-dim)}
.word.terminal p{color:#A9ADB8}

/* ---------- book ---------- */
.book{background:var(--stone)}

/* ---------- version block ---------- */
.version{background:var(--ink-2);color:#A9ADB8;font-size:14.5px}
.version h2{color:#fff;font-size:clamp(22px,3vw,28px)}
.version dl{margin-top:26px;border-top:1px solid var(--rule-dark)}
.version .row{display:grid;grid-template-columns:200px minmax(0,1fr);gap:20px;
  padding:14px 0;border-bottom:1px solid var(--rule-dark)}
.version dt{font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:#6C7180;padding-top:3px}
.version dd{color:#BFC3CC}
@media(max-width:640px){.version .row{grid-template-columns:1fr;gap:5px}}
.notice{border-left:3px solid var(--seam);padding:16px 0 16px 20px;margin-top:30px;color:#BFC3CC;max-width:64ch}

/* ---------- expandable card backs ---------- */
.toggle .lbl{font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--seam-dim);display:flex;align-items:center;gap:6px}
.toggle .lbl::before{content:"+";font-size:14px;line-height:1}
details[open] .toggle .lbl-closed{display:none}
details:not([open]) .toggle .lbl-open{display:none}
details[open] .toggle .lbl-open::before{content:"–"}
.back{padding:0 30px 30px;animation:cardin .3s ease}
@keyframes cardin{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.back-grid{display:grid;grid-template-columns:1fr;gap:20px;max-width:none;margin:0;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08)}
.back-block .k{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:#6C7180;display:block;margin-bottom:8px}
.back-block p{font-size:14.5px;line-height:1.6;color:#B9BDC7}
.draftflag{max-width:840px;margin:0 auto 34px;padding:14px 18px;border:1px solid #3A3F4B;border-radius:2px;
  font-size:13.5px;color:#8E93A2;background:rgba(124,111,247,.06)}
.draftflag strong{color:#D8DAE0}

/* ---------- foot ---------- */
footer{background:var(--ink);color:#8E93A2;padding:52px 0 62px;font-size:14.5px}
footer .cols{display:flex;flex-wrap:wrap;gap:34px;justify-content:space-between;align-items:flex-end}
footer a{color:var(--stone);text-decoration:none;border-bottom:1px solid var(--rule-dark);padding-bottom:2px}
footer a:hover{border-color:var(--seam)}
.overline{color:#6C7180;margin-bottom:8px}

.inline-link{color:var(--ink);font-weight:500;text-decoration:none;
  border-bottom:2px solid var(--seam);padding-bottom:1px;white-space:nowrap}
.inline-link:hover{background:rgba(124,111,247,.12)}

/* keyboard focus — visible everywhere, not just where it was convenient */
a:focus-visible,button:focus-visible{outline:2px solid var(--seam);outline-offset:3px;border-radius:2px}

.printcue{margin-top:30px;padding-top:22px;border-top:1px solid var(--rule-dark);color:#8E93A2;font-size:14.5px}
.printcue kbd{font-family:'IBM Plex Mono';font-size:12px;background:#2A2E38;color:#D8DAE0;
  padding:2px 7px;border-radius:4px;border:1px solid #3A3F4B}

/* ---------- print edition ----------
   Card 01 says visible isn't usable. A doctrine you cannot take
   off the screen and put in front of a team is only visible. */
@media print{
  @page{margin:16mm}
  *{background:transparent!important;color:#000!important;box-shadow:none!important}
  .spine::before,.spine::after{display:none!important}
  body{font-size:10.5pt;line-height:1.45}
  .mast,footer,.printcue,#boundary,.book,.thesis .byline{display:none}
  .wrap{max-width:none;padding:0}
  section{border-top:0;page-break-inside:avoid}
  .pad{padding:0 0 14mm}
  .thesis{padding:0 0 10mm}
  .thesis h1{font-size:26pt;max-width:none}
  .thesis h1 .b{color:#000!important}
  .thesis .lede{font-size:11pt}
  h2{font-size:16pt;margin-bottom:8px}
  .spine .intro,.body-col{font-size:10.5pt}
  .cards{border-top:1px solid #000;display:block}
  .card{border-bottom:1px solid #BBB;border-radius:0;background:none!important;box-shadow:none!important;
    backdrop-filter:none!important}
  summary.card-front{padding:7pt 0;align-items:flex-start}
  .card .num{font-size:8pt;width:16pt;height:16pt;border:1px solid #000!important;background:none!important}
  .statement{font-size:14pt;gap:8pt}
  .statement .a,.statement .b,.statement .hinge{color:#000!important}
  .statement .hinge{font-size:9pt;background:none!important;border:1px solid #000!important;padding:2pt 6pt}
  .gloss{font-size:9pt;margin-top:4pt;text-align:left;max-width:none}
  .back,.toggle,.draftflag{display:none!important}
  .words{border:1px solid #000;grid-template-columns:1fr 1fr}
  .word{padding:8pt;border:0}
  .version{page-break-before:always}
  .version .row{grid-template-columns:120pt 1fr;padding:5pt 0;border-bottom:1px solid #CCC}
  .notice{border-left:2px solid #000}
  .origin .pull{border-left:2px solid #000}
  a[href^="http"]::after{content:" (" attr(href) ")";font-size:8pt;color:#555!important}
}

/* ============================================================
   Added for multi-page restructure — card permalinks, history,
   about. Same token system as the rest of the site.
   ============================================================ */

/* breadcrumb, used on every non-home page */
.crumb{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.08em;color:var(--moss);
  margin-bottom:26px;display:flex;gap:8px;flex-wrap:wrap}
.crumb a{color:var(--moss);text-decoration:none}
.crumb a:hover{color:var(--ink)}
.crumb .sep{color:var(--rule)}
.crumb.on-dark{color:#8E93A2}
.crumb.on-dark a{color:#8E93A2}
.crumb.on-dark a:hover{color:#fff}
.crumb.on-dark .sep{color:#3A3F4B}

/* ---------- card detail page (dark, single card) ---------- */
.card-detail{background:var(--ink);color:var(--stone);min-height:100vh}
.card-detail .wrap{padding-top:clamp(40px,7vw,64px);padding-bottom:clamp(60px,9vw,100px)}
.cd-num{font-family:'IBM Plex Mono';font-size:12px;color:var(--seam-dim);letter-spacing:.14em;
  display:block;margin-bottom:18px}
.cd-statement{font-family:'Archivo';font-weight:800;letter-spacing:-.005em;line-height:1.3;
  font-size:clamp(38px,7vw,74px);margin-bottom:8px}
.cd-statement .hinge{color:var(--seam);display:block;font-size:.42em;font-weight:600;
  font-family:'Inter';margin:10px 0;letter-spacing:.01em}
.cd-gloss{font-size:clamp(18px,2.2vw,22px);color:#A9ADB8;max-width:44ch;margin:26px 0 0;line-height:1.55}
.cd-back{margin-top:clamp(48px,7vw,72px);padding-top:clamp(36px,5vw,52px);
  border-top:1px solid var(--rule-dark);display:grid;grid-template-columns:1fr 1fr;gap:44px;max-width:900px}
@media(max-width:760px){.cd-back{grid-template-columns:1fr;gap:30px}}
.cd-back .k{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:#6C7180;display:block;margin-bottom:12px}
.cd-back p{color:#BFC3CC;font-size:16px;line-height:1.65}
.cd-cite{margin-top:44px;padding:18px 20px;border:1px solid #3A3F4B;border-radius:2px;
  font-size:13px;color:#8E93A2;max-width:900px}
.cd-cite code{font-family:'IBM Plex Mono';color:#D8DAE0;font-size:12px;word-break:break-all}
.cd-pager{margin-top:clamp(56px,8vw,84px);display:flex;justify-content:space-between;gap:20px;
  border-top:1px solid var(--rule-dark);padding-top:26px;flex-wrap:wrap}
.cd-pager a{text-decoration:none;color:#BFC3CC;max-width:280px}
.cd-pager a:hover .cd-pager-t{color:#fff}
.cd-pager .dir{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:#6C7180;display:block;margin-bottom:6px}
.cd-pager .next{text-align:right;margin-left:auto}
.cd-pager-t{font-family:'Archivo';font-weight:700;font-size:16px;letter-spacing:0}
.cd-back-all{text-align:center;margin-top:34px}
.cd-back-all a{color:var(--seam-dim);text-decoration:none;font-family:'IBM Plex Mono';
  font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.cd-back-all a:hover{color:#fff}

/* ---------- history / changelog page ---------- */
.timeline{border-top:1px solid var(--rule);max-width:760px}
.tl-entry{padding:30px 0;border-bottom:1px solid var(--rule);display:grid;
  grid-template-columns:120px 1fr;gap:24px}
@media(max-width:600px){.tl-entry{grid-template-columns:1fr;gap:10px}}
.tl-v{font-family:'Archivo';font-weight:800;font-size:20px;color:var(--seam)}
.tl-date{font-family:'IBM Plex Mono';font-size:11px;color:var(--moss);margin-top:6px;display:block}
.tl-body h4{font-family:'Archivo';font-weight:700;font-size:16.5px;margin-bottom:8px;line-height:1.3}
.tl-body p{color:var(--ink-soft);font-size:15px;line-height:1.6}
.tl-tag{display:inline-block;font-family:'IBM Plex Mono';font-size:9.5px;letter-spacing:.1em;
  text-transform:uppercase;padding:3px 8px;border-radius:999px;margin-bottom:10px}
.tl-tag.material{background:#FDEEEC;color:#B4342B}
.tl-tag.addition{background:#EFFBF4;color:#1B7A47}
.tl-tag.draft{background:#FDF7EC;color:#8A6320}

/* ---------- about page ---------- */
.about-hero{padding:clamp(56px,9vw,96px) 0 clamp(40px,6vw,64px)}
.about-hero h1{font-size:clamp(34px,6vw,58px);max-width:16ch;line-height:1.2}
.stat-row{display:flex;gap:clamp(24px,5vw,56px);flex-wrap:wrap;margin-top:40px;
  padding-top:30px;border-top:1px solid var(--rule)}
.stat{max-width:220px}
.stat .n{font-family:'Archivo';font-weight:800;font-size:28px;color:var(--seam);line-height:1.25}
.stat .l{font-size:13.5px;color:var(--moss);margin-top:4px;line-height:1.4}

/* ---------- home hub (index.html) ---------- */
.hub-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule);
  border:1px solid var(--rule);margin-top:0}
@media(max-width:820px){.hub-cards{grid-template-columns:1fr}}
.hub-card{background:var(--paper);padding:clamp(28px,4vw,40px);text-decoration:none;color:var(--ink);
  display:flex;flex-direction:column;min-height:230px}
.hub-card:hover{background:#F4F3EF}
.hub-card .tag{font-family:'IBM Plex Mono';font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--moss);margin-bottom:16px}
.hub-card h3{margin-bottom:12px;line-height:1.25}
.hub-card p{color:var(--ink-soft);font-size:14.5px;flex:1}
.hub-card .go{font-family:'IBM Plex Mono';font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--seam);margin-top:18px}

/* draft banner reused site-wide */
.sitewide-draft{background:#FDF7EC;border-bottom:1px solid #E9D9B4;color:#6B4F14;font-size:13.5px}
.sitewide-draft .wrap{padding:11px 28px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.sitewide-draft strong{font-weight:700}

.card-permalink{grid-column:1/-1;text-align:center;margin-top:6px}
.card-permalink a{font-family:'IBM Plex Mono';font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--seam-dim);text-decoration:none}
.card-permalink a:hover{color:#fff}