/* ABOUTME: Shared design system for "Transformers and Memory Systems Evolution".
   ABOUTME: Highbury Mk II — cool cobalt engineering ground, self-hosted Zilla/Piazzolla/Fragment. */

@import url('fonts.css');

:root{
  /* Highbury Mk II tokens (light) — variable names kept stable so components & widget JS are untouched */
  --paper:#eaeef4; --panel:#ffffff; --panel2:#e5eaf1; --line:#d1d8e3;
  --ink:#141821; --head:#080c14; --muted:#5c6675; --muted2:#333c4b;
  --brand:#1b52c9; --gold:#c67a12; --steel:#42506b;
  --red:#c8102e; --red-soft:#fbdfe3; --soft:#e4ecfd;
  --shadow:0 1px 2px rgba(16,28,56,.05),0 10px 34px rgba(16,28,56,.10);
  /* the four recurring roles — cobalt / amber / steel / red, consistent in every chapter */
  --q:#1b52c9;  --q-soft:#e4ecfd;   /* query  — cobalt */
  --k:#c67a12;  --k-soft:#f6ead6;   /* key    — amber  */
  --v:#42506b;  --v-soft:#e3e7ef;   /* value  — steel  */
  --s:#c8102e;  --s-soft:#fbdfe3;   /* state / write / evict — cannon red */
  /* blueprint plates keep fixed cool ink in BOTH themes */
  --bp:#0e1a2b; --bp-line:#9fc3e8; --bp-text:#d3e2f6; --bp-dim:#7089a8;
  --bp-q:#7fb3ea; --bp-k:#e0a54a; --bp-v:#a6b4cf; --bp-s:#ef8a80;
  --disp:"Zilla Slab","Rockwell",Georgia,serif;
  --body:"Piazzolla",Georgia,"Iowan Old Style",serif;
  --mono:"Fragment Mono",ui-monospace,"SF Mono",Menlo,monospace;
  /* two-measure layout: comfortable prose column + a wider band for figures/interactive/tables */
  --measure-prose:50rem;
  --measure-wide:min(94vw,1160px);
}
html[data-dark]{
  --paper:#0a0d13; --panel:#12161f; --panel2:#191e29; --line:#28303f;
  --ink:#e5e8ef; --head:#f4f6fb; --muted:#8a93a3; --muted2:#c0c6d2;
  --brand:#6f9bff; --gold:#e0a54a; --steel:#8b97ad;
  --red:#ef4b60; --red-soft:#39161c; --soft:#16213a; --shadow:none;
  --q:#6f9bff; --q-soft:#16213a; --k:#e0a54a; --k-soft:#2e2718;
  --v:#8b97ad; --v-soft:#1c2331; --s:#ef4b60; --s-soft:#39161c;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important} }
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.68;font-optical-sizing:auto;-webkit-font-smoothing:antialiased}
a{color:var(--brand)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:3px}

/* ---------- content card (the panel lifting off the cool grey ground) ----------
   Wider than Highbury's 672px prose measure on purpose: this explainer is exhibit-heavy
   (interactive canvases, wide SVG plates, comparison tables) and needs the room.
   Running prose is held to a comfortable measure below so lines stay readable. */
.wrap{max-width:var(--measure-wide);margin:22px auto 60px;background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:46px 56px 42px;position:relative;overflow:hidden}
/* prose stays in a readable column, left-anchored beside the spec-rail… */
.wrap>*{max-width:var(--measure-prose)}
/* …while visual & interactive exhibits break out to the full wide measure */
.wrap>#spine,.wrap>.plate,.wrap>.widget,.wrap>.tblwrap,.wrap>.videocard,.wrap>.eq,.wrap>.chapgrid,.wrap>.prevnext{max-width:none}
/* interior signature: dashed spec-rail down the inner-left gutter */
.wrap::before{content:"";position:absolute;left:24px;top:44px;bottom:40px;width:1px;background:repeating-linear-gradient(var(--line) 0 6px,transparent 6px 12px);pointer-events:none}
/* cover signature: red kit-stripe on the landing page only (index = data-chap 0) — never both */
body[data-chap="0"] .wrap::before{left:0;top:0;bottom:auto;height:100%;width:6px;background:var(--red);pointer-events:none}
/* prose links underline in content, structural links stay clean */
.wrap p a,.wrap li a,.lede a,.sd a,.mb a,.gloss dd a,.pfoot a{text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:3px}
.wrap p a:hover,.wrap li a:hover,.lede a:hover,.sd a:hover,.mb a:hover,.gloss dd a:hover{text-decoration-thickness:2.5px}

/* ---------- chapter nav (injected by primer.js) ---------- */
.chapnav{position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.chapnav .cnin{max-width:var(--measure-wide);margin:0 auto;padding:9px 56px;display:flex;align-items:center;gap:14px}
.chapnav .home{font-family:var(--disp);font-weight:600;font-size:14.5px;letter-spacing:-.01em;color:var(--head);text-decoration:none;white-space:nowrap;min-width:0;overflow:hidden;text-overflow:ellipsis;flex-shrink:1}
.chapnav .pos{flex-shrink:0}
.chapnav .home:hover{color:var(--brand)}
.chapnav .pos{font-family:var(--mono);font-size:11px;color:var(--muted);margin-left:auto;white-space:nowrap}
.chapnav .cnav{display:flex;gap:6px}
.chapnav .cnav a,.chapnav button{font-family:var(--mono);font-size:11px;color:var(--muted2);background:var(--panel);border:1px solid var(--line);border-radius:7px;padding:4px 10px;text-decoration:none;cursor:pointer;white-space:nowrap}
.chapnav .cnav a:hover,.chapnav button:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- section ToC (Notion-style: its own right column, never overlaps content) ----------
   Below the wide breakpoint the grid collapses and the rail is hidden; the top nav carries navigation. */
.pagegrid{display:block}
.tocrail{display:none}
h1,h2,h3{scroll-margin-top:66px}
/* Rail shows from ~1200px up (covers most laptops); columns flex so it adapts rather than snapping. */
@media(min-width:1200px){
  .pagegrid{display:grid;grid-template-columns:minmax(16px,1fr) minmax(0,1080px) clamp(28px,3vw,44px) minmax(184px,212px) minmax(16px,1fr);align-items:start}
  .pagegrid>.wrap{grid-column:2;margin:22px 0 60px;max-width:none}
  .tocrail{grid-column:4;display:block;position:sticky;top:78px;margin-top:34px;padding-bottom:24px}
  .chapnav .cnin{max-width:1344px}
}
.tocrail .rail-h{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 10px 13px}
.toctick{display:block;padding:5px 0 5px 13px;border-left:2px solid var(--line);color:var(--muted);font-size:12.5px;line-height:1.32;text-decoration:none;transition:color .15s,border-color .15s}
.toctick:hover{color:var(--brand)}
.toctick.active{color:var(--brand);border-left-color:var(--brand);font-weight:600}

/* ---------- journey spine ---------- */
.spine{display:flex;margin:4px 0 6px;overflow-x:auto;padding:2px 0 6px}
.spine a{flex:1;min-width:56px;position:relative;padding-top:16px;text-align:center;font-family:var(--mono);font-size:9.5px;letter-spacing:.06em;color:var(--muted);text-decoration:none}
.spine a::before{content:'';position:absolute;top:5px;left:0;right:0;height:2px;background:var(--line)}
.spine a:first-child::before{left:50%} .spine a:last-child::before{right:50%}
.spine a::after{content:'';position:absolute;top:1px;left:50%;transform:translateX(-50%);width:9px;height:9px;border-radius:50%;background:var(--panel);border:2px solid var(--muted)}
.spine a.done::after{background:var(--brand);border-color:var(--brand)}
.spine a.done::before{background:var(--brand)}
.spine a.now{color:var(--head);font-weight:600}
.spine a.now::after{background:var(--brand);border-color:var(--brand);width:11px;height:11px;top:0;box-shadow:0 0 0 3px var(--soft)}
.spine a:hover{color:var(--brand)}

/* ---------- headings & text ---------- */
.eyebrow{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin:6px 0 14px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--brand);flex:none}
h1{font-family:var(--disp);font-weight:600;font-size:clamp(29px,7vw,40px);line-height:1.06;letter-spacing:-.01em;color:var(--head);margin:0 0 12px;text-wrap:balance}
h2{font-family:var(--disp);font-weight:600;font-size:clamp(20px,5vw,25px);line-height:1.14;letter-spacing:-.01em;color:var(--head);margin:42px 0 8px;text-wrap:balance}
h2 .secno{font-family:var(--mono);font-weight:400;font-size:.62em;letter-spacing:0;color:var(--brand);margin-right:8px}
h2 .secno::before{content:"§"}
h3{font-family:var(--disp);font-weight:600;font-size:18px;color:var(--head);margin:28px 0 6px}
p{margin:12px 0}
.lede{font-size:19px;line-height:1.5;color:var(--muted2)}
code{font-family:var(--mono);font-size:.8em;background:var(--panel2);border-radius:3px;padding:1px 5px}
pre.code{background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:15px 16px;font-family:var(--mono);font-size:12.5px;line-height:1.6;overflow-x:auto;-webkit-overflow-scrolling:touch}
pre.code code{background:none;border:none;padding:0;font-size:inherit}
ul,ol{margin:12px 0;padding-left:24px} li{margin:6px 0}
/* Highbury list markers: cobalt bars on prose ul */
.wrap>ul,.recap ul,.deeper ul,.manifesto ul,p+ul{list-style:none;padding-left:22px}
.wrap>ul>li,.recap ul li,.deeper ul li,.manifesto ul li,p+ul>li{position:relative;padding-left:22px}
.wrap>ul>li::before,.recap ul li::before,.deeper ul li::before,.manifesto ul li::before,p+ul>li::before{content:"";position:absolute;left:0;top:.62em;width:2px;height:11px;background:var(--brand)}
hr{border:none;border-top:1px solid var(--line);margin:36px 0}
strong{color:var(--head)}
::selection{background:var(--soft)}

/* role color-coding in prose & equations */
.cq{color:var(--q);font-weight:600} .ck{color:var(--k);font-weight:600}
.cv{color:var(--v);font-weight:600} .cs{color:var(--s);font-weight:600}
.rolekey{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0;font-family:var(--mono);font-size:11px;padding-left:0;list-style:none}
.rolekey span{border:1px solid var(--line);border-radius:99px;padding:3px 11px;background:var(--panel2)}
.rolekey i{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px;vertical-align:baseline}
.rolekey .rq i{background:var(--q)} .rolekey .rk i{background:var(--k)} .rolekey .rv i{background:var(--v)} .rolekey .rs i{background:var(--s)}

/* ---------- equations (hand-set HTML math) ---------- */
.eq{text-align:center;margin:20px 0;overflow-x:auto}
.eq .eqi{display:inline-block;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:13px 24px;font-size:17px;line-height:1.9;white-space:nowrap;font-variant-numeric:tabular-nums}
.eq var, .mi{font-style:italic;font-family:var(--body)}
.frac{display:inline-flex;flex-direction:column;vertical-align:middle;text-align:center;line-height:1.35;margin:0 3px;font-size:.94em}
.frac>span{padding:0 5px} .frac>span:first-child{border-bottom:1.4px solid currentColor}
.eqnote{font-size:13px;color:var(--muted);text-align:center;margin-top:-10px}
sub,sup{line-height:0}

/* ---------- memory contract ledger ---------- */
.ledger{border:1px solid var(--line);border-radius:8px;overflow:hidden;margin:24px 0;background:var(--panel)}
.ledger .lh{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--panel2);border-bottom:1px solid var(--line);padding:8px 16px;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.ledger .lh b{color:var(--brand);letter-spacing:.12em}
.ledger .lrow{display:grid;grid-template-columns:150px 1fr;border-bottom:1px solid var(--line)}
.ledger .lrow:last-child{border-bottom:none}
.ledger .lk{font-family:var(--mono);font-size:11px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);padding:9px 16px;background:color-mix(in srgb,var(--panel2) 50%,transparent)}
.ledger .lv{padding:9px 16px 9px 0;font-size:14.5px}
@media(max-width:560px){.ledger .lrow{grid-template-columns:1fr}.ledger .lv{padding-left:16px}}

/* ---------- blueprint plates (fixed cool ink, both themes) ---------- */
.plate{background:var(--bp);border-radius:10px;margin:24px 0;overflow:hidden;border:1px solid color-mix(in srgb,var(--bp-line) 22%,var(--bp))}
.plate .pcap{display:flex;gap:12px;align-items:baseline;padding:10px 16px;border-bottom:1px solid color-mix(in srgb,var(--bp-line) 26%,var(--bp))}
.plate .pcap .pno{font-family:var(--mono);font-size:10px;letter-spacing:.2em;color:var(--bp-k);text-transform:uppercase;white-space:nowrap}
.plate .pcap .pt{font-family:var(--disp);font-weight:600;font-size:13.5px;color:var(--bp-text)}
.plate .pbody{padding:14px 16px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.plate svg{display:block;min-width:540px;max-width:100%;height:auto;margin:0 auto}
.plate .pfoot{padding:8px 16px 12px;font-size:12px;color:var(--bp-dim);border-top:1px dashed color-mix(in srgb,var(--bp-line) 22%,var(--bp))}
.plate .pfoot a{color:var(--bp-line)}
/* svg helper classes used inside plates */
.plate .ln{stroke:var(--bp-line);stroke-width:1.4;fill:none}
.plate .lnd{stroke:var(--bp-dim);stroke-width:1.2;fill:none;stroke-dasharray:4 4}
.plate .bx{fill:none;stroke:var(--bp-line);stroke-width:1.4;rx:6}
.plate .bxf{fill:color-mix(in srgb,var(--bp-line) 13%,var(--bp));stroke:var(--bp-line);stroke-width:1.2}
.plate text{font-family:var(--mono);font-size:11px;fill:var(--bp-text)}
.plate .td{fill:var(--bp-dim)} .plate .tb{font-size:12.5px;font-weight:600}
.plate .aq{stroke:var(--bp-q)} .plate .ak{stroke:var(--bp-k)} .plate .av{stroke:var(--bp-v)} .plate .as{stroke:var(--bp-s)}
.plate .fq{fill:var(--bp-q)} .plate .fk{fill:var(--bp-k)} .plate .fv{fill:var(--bp-v)} .plate .fs{fill:var(--bp-s)}

/* ---------- context popups (hover/tap tooltips) — cobalt, informational ---------- */
.pop{position:relative;display:inline;border-bottom:1.5px dashed var(--brand);cursor:help}
.pop:focus{outline:none}
.pop .popup{position:absolute;bottom:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(4px);
  width:min(340px,84vw);background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:8px;padding:10px 14px;font-size:13px;line-height:1.55;color:var(--ink);
  box-shadow:var(--shadow);opacity:0;visibility:hidden;
  transition:opacity .15s ease,transform .15s ease;z-index:40;pointer-events:none;
  font-style:normal;font-weight:400;text-align:left;font-family:var(--body)}
.pop:hover .popup,.pop:focus .popup,.pop.open .popup{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.pop .popup .pl{display:block;font-family:var(--mono);font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:4px}
.pop .popup::after{content:'';position:absolute;top:100%;left:50%;transform:translateX(-50%);border:7px solid transparent;border-top-color:var(--line)}

/* ---------- attribution components ---------- */
.spotlight{border:1px solid var(--line);border-left:2px solid var(--brand);background:var(--soft);border-radius:0 8px 8px 0;padding:14px 18px;margin:22px 0}
.spotlight .sh{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:6px}
.spotlight .st1{font-family:var(--disp);font-weight:600;font-size:16px;color:var(--head)}
.spotlight .sd{font-size:14px;color:var(--text,var(--ink));margin-top:4px}
.spotlight .sd a{font-weight:600}
.borrowed{background:var(--panel2);border-left:2px solid var(--steel);border-radius:0 8px 8px 0;padding:4px 18px 12px;margin:22px 0}
.borrowed .bh{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin:12px 0 2px}
.borrowed blockquote{margin:8px 0;font-style:italic;font-size:16px;color:var(--muted2)}
.borrowed .bs{font-size:12px;font-style:normal;color:var(--muted)}
.adapted{font-family:var(--mono);font-size:11px;color:var(--muted);margin:-14px 0 18px;text-align:right}

/* ---------- asides (cobalt standard; amber scoped-claim; steel hardware) — red stays for alarms only ---------- */
.aside{border:1px solid var(--line);border-radius:0 8px 8px 0;padding:12px 18px;margin:22px 0;font-size:14.5px;background:var(--panel2)}
.aside .ah{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:5px}
.aside.context{border-left:2px solid var(--brand);background:var(--soft)} .aside.context .ah{color:var(--brand)}
.aside.scope{border-left:2px solid var(--gold)} .aside.scope .ah{color:var(--gold)}
.aside.hw{border-left:2px solid var(--steel)} .aside.hw .ah{color:var(--steel)}
.aside.alert{border-left:2px solid var(--red);background:var(--red-soft)} .aside.alert .ah{color:var(--red)}
details.mathbox{border:1px solid var(--line);border-radius:8px;background:var(--panel2);margin:20px 0}
details.mathbox summary{cursor:pointer;padding:11px 16px;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--muted2)}
details.mathbox summary::marker{color:var(--brand)}
details.mathbox .mb{padding:2px 18px 14px;border-top:1px solid var(--line)}

/* ---------- video embeds ---------- */
.videocard{background:var(--panel);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin:24px 0}
.videocard .vh{padding:11px 16px;border-bottom:1px solid var(--line);font-size:13.5px}
.videocard .vh b{font-family:var(--disp);font-weight:600}
.videocard .vh .vc{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.videocard .vwrap{position:relative;padding-top:56.25%;background:#000}
.videocard iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.videocard .vplay{position:absolute;inset:0;width:100%;height:100%;display:block;border:0;padding:0;margin:0;background:#000;cursor:pointer}
.videocard .vplay img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.88}
.videocard .vplay .vbtn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:70px;height:48px;border-radius:12px;background:rgba(10,13,19,.82);border:1px solid rgba(255,255,255,.32);color:#fff;font-size:19px;display:flex;align-items:center;justify-content:center}
.videocard .vplay:hover .vbtn,.videocard .vplay:focus-visible .vbtn{background:var(--red)}
.videocard .vplay .vhint{position:absolute;left:0;right:0;bottom:0;padding:8px 12px;font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:#eee;background:linear-gradient(transparent,rgba(0,0,0,.75));text-align:left}

/* ---------- interactive widgets ---------- */
.widget{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px 18px;margin:26px 0}
.widget .wh{display:flex;justify-content:space-between;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.widget .wt{font-family:var(--disp);font-weight:600;font-size:16px;color:var(--head)}
.widget .wtag{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--brand);border:1px solid var(--brand);border-radius:99px;padding:2px 10px}
.widget .ctrl{display:flex;gap:14px;flex-wrap:wrap;align-items:center;font-size:13px;font-family:var(--body);margin:10px 0}
.widget .ctrl label{display:flex;gap:7px;align-items:center;color:var(--muted2)}
.widget button{font-family:var(--body);font-weight:600;font-size:13px;border:1px solid var(--line);background:var(--panel2);color:var(--ink);border-radius:7px;padding:7px 14px;cursor:pointer;min-height:38px}
.widget button.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.widget button:hover{border-color:var(--brand)}
.widget input[type=range]{accent-color:var(--brand);min-height:24px}
.widget select{font-family:var(--body);font-size:13px;background:var(--panel2);color:var(--ink);border:1px solid var(--line);border-radius:7px;padding:6px 8px;min-height:38px}
.widget canvas{width:100%;height:auto;display:block;background:var(--panel2);border:1px solid var(--line);border-radius:8px}
.widget .wnote{font-size:12.5px;color:var(--muted);margin:10px 0 0}
.widget .readout{font-family:var(--mono);font-size:12.5px;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:9px 13px;margin-top:10px;line-height:1.7}

/* ---------- tables ---------- */
.tblwrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:20px 0;border:1px solid var(--line);border-radius:8px}
table.cmp{width:100%;border-collapse:collapse;font-size:14px;font-variant-numeric:tabular-nums;min-width:380px}
table.cmp th{font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted2);background:var(--panel2);text-align:left;padding:10px 14px;border-bottom:1px solid var(--line)}
table.cmp td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
table.cmp tr:last-child td{border-bottom:none}
table.cmp td:first-child{font-weight:600;color:var(--head)}

/* ---------- recap + go deeper ---------- */
.recap{border:1px solid var(--line);border-left:2px solid var(--brand);border-radius:0 8px 8px 0;background:var(--soft);padding:6px 20px 12px;margin:30px 0}
.recap .rh{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin:12px 0 2px}
.deeper{border-top:1px solid var(--line);margin-top:34px;padding-top:8px}
.deeper .dh{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:10px 0 4px}
.deeper ul{font-size:14px}

/* ---------- glossary term links (amber = reference affordance, distinct from cobalt action links) ---------- */
a.term{color:inherit;text-decoration:underline dotted var(--gold);text-underline-offset:3px;position:relative}
a.term:hover{color:var(--gold);text-decoration-color:var(--gold)}
a.term .popup{position:absolute;bottom:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(4px);
  width:min(340px,84vw);background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--gold);
  border-radius:8px;padding:10px 14px;font-size:13px;line-height:1.55;color:var(--ink);
  box-shadow:var(--shadow);opacity:0;visibility:hidden;
  transition:opacity .15s ease,transform .15s ease;z-index:45;pointer-events:none;
  font-style:normal;font-weight:400;text-align:left;font-family:var(--body);white-space:normal}
a.term:hover .popup,a.term:focus .popup,a.term.open .popup{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
a.term .popup .pl{display:block;font-family:var(--mono);font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:4px}
a.term .popup .pmore{display:block;font-family:var(--mono);font-size:10px;color:var(--muted);margin-top:6px}
a.term .popup::after{content:'';position:absolute;top:100%;left:50%;transform:translateX(-50%);border:7px solid transparent;border-top-color:var(--line)}
.gloss dt{font-weight:600;font-family:var(--mono);font-size:14px;color:var(--head);margin-top:20px}
.gloss dt .gtag{font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;color:var(--muted);font-weight:400;margin-left:8px}
.gloss dd{margin:4px 0 0;font-size:14.5px;color:var(--muted2)}
.gloss dd .where{display:block;font-family:var(--mono);font-size:11px;color:var(--muted);margin-top:4px}

/* ---------- prev/next footer (injected) ---------- */
.prevnext{display:flex;gap:12px;margin:40px 0 10px}
.pn{flex:1;background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:12px 16px;text-decoration:none;color:var(--ink)}
.pn:hover{border-color:var(--brand)}
.pn .pk{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.pn .pt{font-family:var(--disp);font-weight:600;font-size:15px;color:var(--head);margin-top:3px}
.pn.next{text-align:right}
.foot{margin:26px 0 0;font-family:var(--mono);font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;line-height:1.7}
.foot a{color:var(--muted2)}

/* ---------- index page ---------- */
.byline{font-family:var(--mono);font-size:11.5px;color:var(--muted);margin:0 0 22px}
.chapgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin:26px 0}
.chapcard{background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:14px 16px;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:6px}
.chapcard:hover{border-color:var(--brand)}
.chapcard .cno{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase}
.chapcard .ct{font-family:var(--disp);font-weight:600;font-size:16.5px;color:var(--head);line-height:1.2}
.chapcard .cd{font-size:13.5px;color:var(--muted2)}
.manifesto{background:var(--soft);border:1px solid var(--brand);border-radius:8px;padding:8px 22px 16px;margin:28px 0}
.manifesto .mh{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--brand);margin:14px 0 4px}

/* ---------- responsive ---------- */
@media(max-width:720px){
  .wrap{padding:34px 22px 34px}
  .wrap::before{left:11px}
  .chapnav .cnin{padding:9px 16px}
}
@media(max-width:640px){
  .prevnext{flex-direction:column}
  .chapnav .cnav a span.lbl{display:none}
}
@media(max-width:480px){
  body{background:var(--panel)}
  .wrap{max-width:none;margin:0;border:none;border-radius:0;box-shadow:none;padding:26px 18px 40px}
  body[data-chap="0"] .wrap::before{width:6px}
}