/* ==========================================================
   SIMPLEBLOB · "Marginalia"
   A scholarly-library reading experience.
   Colours follow the system setting; js/theme.js lets the
   reader override it with data-theme="light|dark" on <html>.
   Text: Source Serif 4 (optical sizes, small caps, old-style figures)
   Display: EB Garamond
   ========================================================== */

:root {
  color-scheme: light dark;

  /* Paper & ink (light: warm laid paper, iron-gall ink, oxblood rubric) */
  --paper:        #f7f2e7;
  --paper-2:      #fcf9f2;
  --paper-3:      #eee6d5;
  --ink:          #26211c;
  --ink-2:        #463e36;
  --muted:        #675c50;
  --accent:       #7b1e22;
  --accent-soft:  rgba(123, 30, 34, 0.065);
  --accent-line:  rgba(123, 30, 34, 0.38);
  --rule:         #d6cab4;
  --rule-faint:   #e6ddcb;
  --ruled-line:   #cfd8df;          /* the faint blue lines of an index card */
  --brass:        #9a7334;
  --plate:        #fffdf8;           /* light card under diagrams & plates */
  --shadow:       0 1px 0 rgba(60, 40, 20, .05), 0 6px 18px -10px rgba(60, 40, 20, .28);

  /* Measure & margin column */
  --main: 38rem;
  --gap:  3rem;
  --mw:   15rem;
  --total: calc(var(--main) + var(--gap) + var(--mw));

  --serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --display: "EB Garamond", "Garamond", "Source Serif 4", Georgia, serif;
  --orn: "Segoe UI Symbol", "Apple Symbols", "Noto Sans Symbols 2", "DejaVu Sans", serif;
}

/* Dark: a reading room at night — umber shadows, lamplit ink, rose madder rubric.
   The same tokens appear twice: once for the system setting, once for the toggle. */
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper:        #17140f;
  --paper-2:      #1f1b16;
  --paper-3:      #110f0b;
  --ink:          #ece4d6;
  --ink-2:        #d3c9b8;
  --muted:        #a99b8a;
  --accent:       #e39a8d;
  --accent-soft:  rgba(227, 154, 141, 0.08);
  --accent-line:  rgba(227, 154, 141, 0.45);
  --rule:         #3d352c;
  --rule-faint:   #2b261f;
  --ruled-line:   #2c333a;
  --brass:        #c9a368;
  --plate:        #f2ece0;
  --shadow:       0 1px 0 rgba(0,0,0,.4), 0 8px 22px -12px rgba(0,0,0,.8);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:        #17140f;
    --paper-2:      #1f1b16;
    --paper-3:      #110f0b;
    --ink:          #ece4d6;
    --ink-2:        #d3c9b8;
    --muted:        #a99b8a;
    --accent:       #e39a8d;
    --accent-soft:  rgba(227, 154, 141, 0.08);
    --accent-line:  rgba(227, 154, 141, 0.45);
    --rule:         #3d352c;
    --rule-faint:   #2b261f;
    --ruled-line:   #2c333a;
    --brass:        #c9a368;
    --plate:        #f2ece0;
    --shadow:       0 1px 0 rgba(0,0,0,.4), 0 8px 22px -12px rgba(0,0,0,.8);
  }
}

@media (min-width: 80em) {
  :root { --main: 40rem; --gap: 4rem; --mw: 16.5rem; }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-optical-sizing: auto;
  font-size: 1.0625rem;
  line-height: 1.62;
  font-variant-numeric: oldstyle-nums proportional-nums;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}
@media (min-width: 64em) { body { font-size: 1.125rem; } }

img { max-width: 100%; height: auto; display: block; }

a {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-color: var(--accent-line);
  text-decoration-thickness: 1px;
  text-underline-offset: .2em;
  transition: color .15s, text-decoration-color .15s;
}
a:hover { color: var(--accent); text-decoration-color: currentColor; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection { background: var(--accent); color: var(--paper); }

.vh {
  position: absolute !important;
  width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: 1rem; top: -4rem; z-index: 10;
  background: var(--ink); color: var(--paper);
  padding: .5rem .9rem; text-decoration: none;
  font-variant-caps: all-small-caps; letter-spacing: .08em;
}
.skip:focus { top: 1rem; }

.sc   { font-variant-caps: small-caps; letter-spacing: .04em; }
.asc  { font-variant-caps: all-small-caps; letter-spacing: .07em; }
.lnum { font-variant-numeric: lining-nums tabular-nums; }

/* ---------- Page frame ---------- */
.wrap {
  width: 100%;
  max-width: calc(var(--total) + 4rem);
  margin-inline: auto;
  padding-inline: 1rem;
}
@media (min-width: 40em) { .wrap { padding-inline: 2rem; } }

/* The two-column folio: main text + right margin.
   Below 64em the margin collapses inline. */
.folio { max-width: var(--main); margin-inline: auto; }
.full  { max-width: var(--total); margin-inline: auto; }

@media (min-width: 64em) {
  .folio {
    max-width: var(--total);
    display: grid;
    grid-template-columns: minmax(0, var(--main)) var(--mw);
    column-gap: var(--gap);
    align-items: start;
  }
  .folio > * { grid-column: 1; }
  .folio > .margin { grid-column: 2; }
}

/* ---------- Masthead ---------- */
.masthead {
  text-align: center;
  padding-top: clamp(2rem, 6vw, 3.75rem);
}
.wordmark {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.55rem, 0.95rem + 4vw, 3.1rem);
  letter-spacing: .22em;
  line-height: 1;
  /* compensate trailing tracking so the word sits optically centred */
  margin-right: -.22em;
}
.wordmark a { text-decoration: none; color: var(--ink); }
.wordmark a:hover { color: var(--accent); }

.tagline {
  margin: .7rem 0 0;
  font-family: var(--display);
  font-style: italic;
  color: var(--muted);
  font-size: 1rem;
}

.primary-nav {
  margin-top: 1.4rem;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  box-shadow: 0 -3px 0 -2px var(--ink); /* the thin-thick double rule of a title page */
}
.primary-nav ul {
  list-style: none; margin: 0; padding: .55rem 0;
  display: flex; justify-content: center; flex-wrap: wrap; gap: .1rem 0;
}
.primary-nav li + li::before {
  content: "·"; color: var(--muted); padding-inline: .9rem;
}
.primary-nav a {
  font-variant-caps: all-small-caps;
  letter-spacing: .14em;
  font-size: 1.12rem;
  text-decoration: none;
  color: var(--ink-2);
  padding: .2rem .1rem;
}
.primary-nav a:hover { color: var(--accent); }
.primary-nav a[aria-current] {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .3em;
}
.theme-item:has(> [hidden]) { display: none; }
@media (max-width: 30em) {
  .primary-nav li + li::before { padding-inline: .4rem; }
  .primary-nav a, .theme-toggle { letter-spacing: .08em; }
}
.theme-toggle {
  font: inherit;
  font-variant-caps: all-small-caps;
  letter-spacing: .14em;
  font-size: 1.12rem;
  line-height: inherit;
  color: var(--muted);
  background: none;
  border: 0;
  padding: .2rem .1rem;
  cursor: pointer;
}
.theme-toggle::before { content: "☾ "; font-family: var(--orn); font-variant-caps: normal; }
.theme-toggle:hover, .theme-toggle[aria-pressed="true"] { color: var(--accent); }

/* ---------- Ornaments & labels ---------- */
.fleuron, .prose hr {
  border: 0; margin: 2.75rem auto; height: auto;
  text-align: center; color: var(--accent);
  overflow: visible;
}
.fleuron::after, .prose hr::after {
  content: "❦";
  font-family: var(--orn);
  font-size: 1.35rem; line-height: 1;
  display: inline-block;
}

.section-label {
  font-family: var(--serif);
  font-weight: 600;
  font-size: .95rem;
  font-variant-caps: all-small-caps;
  letter-spacing: .16em;
  color: var(--accent);
  margin: 0 0 1rem;
}

.section-title {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.7rem, 1.3rem + 1.6vw, 2.25rem);
  line-height: 1.15;
  margin: 0;
}

/* Drop cap — native initial-letter where supported, float fallback otherwise */
.opening { display: flow-root; }
.opening::first-letter {
  float: left;
  font-family: var(--display);
  font-weight: 500;
  color: var(--accent);
  font-size: 3.55em;
  line-height: .8;
  padding: .07em .09em 0 0;
}
@supports (initial-letter: 2) or (-webkit-initial-letter: 2) {
  .opening::first-letter {
    float: none; font-size: inherit; line-height: inherit; padding: 0;
    -webkit-initial-letter: 2;
    initial-letter: 2;
    margin-right: .12em;
  }
}
.lead-in { font-variant-caps: small-caps; letter-spacing: .035em; }

/* ---------- Home: preface spread ---------- */
.spread {
  margin-top: clamp(2.25rem, 6vw, 4rem);
  display: grid;
  gap: 2.25rem;
}
@media (min-width: 50em) {
  .spread { grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); gap: clamp(2.5rem, 5vw, 4.5rem); align-items: center; }
}
.preface p { margin: 0 0 1rem; hyphens: auto; }
.preface .opening { font-size: 1.12em; }
.signature {
  margin-top: 1.4rem !important;
  font-family: var(--display); font-style: italic; color: var(--muted);
}

.plate { margin: 0; }
.plate-frame {
  background: var(--plate);
  padding: .55rem;
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
  transform: rotate(-.35deg);
}
.plate-frame img {
  width: 100%;
  /* crop the right ~8% and a sliver of the bottom: removes the generator watermark */
  aspect-ratio: 940 / 540;
  object-fit: cover;
  object-position: 0% 0%;
  outline: 1px solid rgba(0,0,0,.12);
  outline-offset: -1px;
}
.plate figcaption {
  margin-top: .9rem;
  text-align: center;
  font-size: .92rem;
  color: var(--muted);
  font-style: italic;
  line-height: 1.45;
}
.plate-no {
  font-style: normal;
  font-variant-caps: all-small-caps;
  letter-spacing: .12em;
  color: var(--accent);
  margin-right: .3em;
}

/* ---------- Home: reading desk (call slips) ---------- */
.desk { margin-top: clamp(3rem, 7vw, 4.5rem); }
.desk-head { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: .25rem 1rem; margin-bottom: 1.25rem; }
.desk-head p { margin: 0; color: var(--muted); font-style: italic; font-size: .95rem; }

.slips { display: grid; gap: 1.25rem; }
@media (min-width: 48em) { .slips { grid-template-columns: 1fr 1fr; gap: 1.75rem; } }

.slip {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: 1.15rem 1.2rem 1.2rem;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
}
/* perforated top edge of a library call slip */
.slip::before {
  content: ""; position: absolute; left: .6rem; right: .6rem; top: .38rem;
  border-top: 1.5px dotted var(--rule);
}
.slip-top {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  padding-top: .35rem; margin-bottom: .55rem;
  font-size: .82rem;
}
.slip-kind { color: var(--accent); font-variant-caps: all-small-caps; letter-spacing: .14em; font-weight: 600; font-size: .95rem; }
.callno {
  font-variant-caps: all-small-caps; letter-spacing: .12em;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--muted);
  white-space: nowrap;
}
.slip h3 {
  font-family: var(--display); font-weight: 500;
  font-size: 1.5rem; line-height: 1.18;
  margin: 0 0 .8rem;
  overflow-wrap: anywhere;
}
.slip h3 a { text-decoration: none; }
.slip h3 a:hover { text-decoration: underline; text-decoration-color: var(--accent-line); }
.slip h3 .form { display: block; font-family: var(--serif); font-size: .78rem; font-variant-caps: all-small-caps; letter-spacing: .12em; color: var(--muted); margin-bottom: .2rem; }

.fields { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: .25rem .9rem; font-size: .9rem; border-top: 1px solid var(--rule-faint); padding-top: .7rem; }
.fields dt { font-variant-caps: all-small-caps; letter-spacing: .1em; color: var(--muted); }
.fields dd { margin: 0; color: var(--ink-2); }
.slip blockquote {
  margin: .9rem 0 0; padding-left: .85rem;
  border-left: 2px solid var(--accent-line);
  font-style: italic; font-size: .95rem; color: var(--ink-2);
}
.slip .topics { margin: .8rem 0 0; font-size: .88rem; color: var(--muted); }

/* ---------- Status marks ---------- */
.mark {
  display: inline-block; vertical-align: -.05em;
  width: .72em; height: .72em; border-radius: 50%;
  border: 1.5px solid var(--muted);
  flex: none;
}
.mark.draft    { background: transparent; }
.mark.ongoing  { border-color: var(--accent); background: linear-gradient(90deg, var(--accent) 50%, transparent 50%); }
.mark.finished { border-color: var(--ink); background: var(--ink); }

.status-word { font-variant-caps: all-small-caps; letter-spacing: .1em; font-size: .95em; }
.status-word.ongoing { color: var(--accent); }

.legend {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: .3rem 1.25rem;
  font-size: .88rem; color: var(--muted);
}
.legend li { display: inline-flex; align-items: center; gap: .45rem; }
.legend .mark { font-size: 1.05rem; }

/* ---------- Home: the catalogue ---------- */
.catalogue { margin-top: clamp(3.25rem, 8vw, 5rem); }
.catalogue-intro { margin: .6rem 0 1.4rem; color: var(--ink-2); max-width: 36rem; }

/* The cabinet: drawer fronts */
.cabinet {
  margin-top: 1.6rem;
  background: var(--paper-3);
  border: 1px solid var(--rule);
  padding: .55rem;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.35);
}
.cabinet ul {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem;
}
@media (min-width: 44em) { .cabinet ul { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.drawer-front {
  position: relative;
  display: flex; flex-direction: column; align-items: center;
  text-align: center; text-decoration: none;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: .8rem .6rem 1.6rem;
  min-height: 100%;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s;
}
.drawer-front:hover { transform: translateY(-1px); border-color: var(--brass); box-shadow: var(--shadow); color: var(--ink); }
/* label holder */
.drawer-front .holder {
  display: block; width: 100%; max-width: 11rem;
  border: 1.5px solid var(--brass);
  border-radius: 2px;
  padding: .35rem .4rem .4rem;
  background: var(--paper);
}
.drawer-front .holder .callno { display: block; color: var(--accent); font-size: 1.05rem; font-weight: 600; }
.drawer-front .holder .topic { display: block; font-family: var(--display); font-size: 1.08rem; line-height: 1.2; color: var(--ink); overflow-wrap: anywhere; }
.drawer-front .count { display: block; margin-top: .4rem; font-size: .8rem; color: var(--muted); font-style: italic; }
/* brass pull */
.drawer-front::after {
  content: ""; position: absolute; left: 50%; bottom: .55rem;
  width: 1.5rem; height: .5rem; margin-left: -.75rem;
  border: 1.5px solid var(--brass); border-top: 0;
  border-radius: 0 0 .75rem .75rem;
}

/* Opened drawers */
.drawer { margin-top: 2.75rem; scroll-margin-top: 1.5rem; }
.drawer-head {
  display: flex; align-items: baseline; gap: .8rem; flex-wrap: wrap;
  border-bottom: 3px double var(--accent-line);
  padding-bottom: .4rem;
}
.drawer-head :is(h2, h3) {
  margin: 0;
  font-family: var(--display); font-weight: 500;
  font-size: 1.55rem; line-height: 1.2;
}
.drawer-head .callno { color: var(--accent); font-size: 1.1rem; font-weight: 600; }

.cards { list-style: none; margin: 0; padding: 0; background: var(--paper-2); border: 1px solid var(--rule-faint); border-top: 0; }
.card {
  position: relative;
  display: grid;
  grid-template-columns: 5.6rem minmax(0, 1fr) auto;
  column-gap: .9rem;
  align-items: baseline;
  padding: .6rem .8rem .55rem;
  border-bottom: 1px solid var(--ruled-line);
}
.card:last-child { border-bottom: 0; }
@media (max-width: 34.99em) {
  .card { grid-template-columns: minmax(0, 1fr) auto; row-gap: .05rem; }
  .card time { grid-column: 1 / -1; }
}
.card time {
  font-size: .82rem; color: var(--muted);
  font-variant-numeric: oldstyle-nums tabular-nums;
  white-space: nowrap;
}
.card .title { min-width: 0; line-height: 1.38; overflow-wrap: anywhere; }
.card .title a { text-decoration-color: transparent; }
.card .title a:hover, .card .title a:focus-visible { text-decoration-color: var(--accent-line); }
.card .sub { display: block; font-size: .85rem; color: var(--muted); font-style: italic; }
.card .sub .w { font-style: normal; }
.card .st { display: inline-flex; align-items: center; gap: .4rem; font-size: .9rem; white-space: nowrap; }

.card.hl { background: var(--accent-soft); }
.card.hl .title > a { font-weight: 600; }
.flag {
  font-variant-caps: all-small-caps; letter-spacing: .1em; font-weight: 600;
  color: var(--accent); font-size: .92rem; margin-left: .35rem;
  white-space: nowrap;
}
.manicule { font-family: var(--orn); color: var(--accent); font-style: normal; }
.card .manicule { margin-right: .3rem; }
@media (min-width: 64em) {
  .card .manicule { position: absolute; left: -2rem; top: .5rem; margin: 0; font-size: 1.2rem; }
}

/* margin annotation beside each drawer */
.drawer-note {
  font-size: .86rem; line-height: 1.5; color: var(--muted);
  margin: .7rem 0 0;
}
.drawer-note p { margin: 0 0 .5rem; }
.drawer-note strong { font-weight: 600; color: var(--ink-2); }
@media (max-width: 63.99em) {
  .drawer-note { padding-left: .8rem; border-left: 2px solid var(--rule); margin-bottom: .9rem; }
  .drawer-note p { margin-bottom: .2rem; }
}
@media (min-width: 64em) {
  .drawer .margin { grid-row: 1 / span 2; padding-top: .45rem; }
  .drawer-note { margin-top: 0; padding-top: .65rem; border-top: 1px solid var(--rule); }
}

/* ---------- Footer ---------- */
.site-foot {
  margin-top: clamp(3.5rem, 9vw, 6rem);
  padding-bottom: 3rem;
  font-size: .93rem;
  color: var(--ink-2);
}
.foot-grid { display: grid; gap: 1.75rem; border-top: 1px solid var(--rule); padding-top: 1.75rem; }
@media (min-width: 48em) { .foot-grid { grid-template-columns: 1.25fr 1fr 1fr; gap: 2.5rem; } }
.foot-grid h2 {
  font-size: .9rem; font-weight: 600; margin: 0 0 .5rem;
  font-variant-caps: all-small-caps; letter-spacing: .14em; color: var(--accent);
}
.foot-grid p { margin: 0 0 .5rem; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; }
.foot-grid li { margin-bottom: .3rem; }
.email { font-variant-caps: normal; overflow-wrap: anywhere; }
.copyright { margin-top: 2rem; text-align: center; color: var(--muted); font-size: .85rem; font-style: italic; }

/* ==========================================================
   Article
   ========================================================== */
.crumbs { margin-top: 1.5rem; font-size: .9rem; color: var(--muted); }
.crumbs a { text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.crumbs .callno { color: var(--accent); }

.note { margin-top: clamp(1.75rem, 5vw, 3rem); }

.title-block { margin-bottom: 1.5rem; }
.title-block h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.2rem, 1.4rem + 3.6vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: -.005em;
  overflow-wrap: anywhere;
  text-wrap: balance;
}
.title-block h1 .form {
  display: block;
  font-family: var(--serif);
  font-size: .95rem; font-weight: 600;
  font-variant-caps: all-small-caps; letter-spacing: .18em;
  color: var(--accent);
  margin-bottom: .8rem;
}
.title-block h1 .by {
  display: block; margin-top: .55rem;
  font-style: italic; font-size: .42em; color: var(--ink-2);
}
.title-block .subtitle {
  margin: 1rem 0 0;
  font-family: var(--display); font-style: italic;
  font-size: 1.3rem; color: var(--muted);
}
.title-block .subtitle::before {
  content: ""; display: inline-block; width: 2rem; height: 1px;
  background: var(--accent); vertical-align: middle; margin-right: .7rem;
}

/* metadata, gwern-style */
.meta { font-size: .88rem; line-height: 1.45; margin: 0 0 1.75rem; }
.meta dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: .3rem 1rem; }
.meta dt { font-variant-caps: all-small-caps; letter-spacing: .1em; color: var(--muted); }
.meta dd { margin: 0; color: var(--ink-2); }
.meta dd time { font-variant-numeric: oldstyle-nums; }
.meta .tag {
  display: inline-block; text-decoration: none;
  font-variant-caps: all-small-caps; letter-spacing: .08em;
  border-bottom: 1px solid var(--accent-line);
}
@media (max-width: 63.99em) {
  .meta { border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: .8rem 0; }
  .meta dl { grid-template-columns: auto 1fr auto 1fr; }
}
@media (max-width: 30em) {
  .meta dl { grid-template-columns: auto 1fr; }
}
@media (min-width: 64em) {
  .note > .meta { grid-row: 1 / span 2; padding-top: 1.85rem; border-top: 1px solid var(--rule); }
}
.meta .note-on-status { margin: .9rem 0 0; font-style: italic; color: var(--muted); font-size: .84rem; }
@media (max-width: 63.99em) { .meta .note-on-status { display: none; } }

/* table of contents */
.toc {
  margin: 0 0 2.5rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: .35rem 0 .6rem;
  font-size: .9rem;
}
.toc summary {
  cursor: pointer; list-style: none;
  padding: .4rem 0;
  font-variant-caps: all-small-caps; letter-spacing: .16em; font-weight: 600;
  color: var(--accent);
  display: flex; align-items: center; gap: .5rem;
}
.toc summary::-webkit-details-marker { display: none; }
.toc summary::after { content: "▾"; font-size: .8em; transition: transform .2s; }
.toc details:not([open]) summary::after { transform: rotate(-90deg); }
.toc ol { list-style: none; margin: 0; padding: 0; counter-reset: toc; }
.toc > details > ol { columns: 1; }
@media (min-width: 40em) { .toc > details > ol { columns: 2; column-gap: 2.5rem; } }
.toc li { break-inside: avoid; }
.toc > details > ol > li { counter-increment: toc; margin: 0 0 .45rem; }
.toc > details > ol > li > a::before {
  content: counter(toc, upper-roman) ".";
  display: inline-block; min-width: 1.9rem;
  color: var(--accent); font-variant-caps: normal; font-size: .85em;
}
.toc ol ol { padding-left: 1.9rem; color: var(--ink-2); }
.toc ol ol li { margin: .1rem 0; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* prose */
.prose { counter-reset: sec sn fig; hyphens: auto; }
.prose > * { max-width: 100%; }
.prose p { margin: 0 0 1.05rem; }
.prose h2 {
  counter-increment: sec;
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.65rem, 1.35rem + 1.2vw, 2.1rem);
  line-height: 1.15;
  margin: 2.75rem 0 1.1rem;
  scroll-margin-top: 1.5rem;
  text-wrap: balance;
}
.prose > h2:first-child { margin-top: 0; }
.prose h2::before {
  content: counter(sec, upper-roman) ".";
  display: block;
  font-family: var(--serif);
  font-size: .9rem; font-weight: 600; letter-spacing: .14em;
  color: var(--accent);
  margin-bottom: .2rem;
}
.prose h3 {
  font-size: 1.05rem; font-weight: 600;
  font-variant-caps: small-caps; letter-spacing: .05em;
  margin: 2rem 0 .6rem;
  color: var(--ink);
  scroll-margin-top: 1.5rem;
}
.prose h4 {
  font-family: var(--display); font-style: italic; font-weight: 500;
  font-size: 1.25rem;
  margin: 1.6rem 0 .45rem;
  scroll-margin-top: 1.5rem;
}
.prose h5, .prose h6 { font-size: 1rem; font-weight: 600; font-style: italic; margin: 1.4rem 0 .4rem; }
.prose strong { font-weight: 650; color: var(--ink); }

/* the opening paragraph of a note gets the drop cap */
.prose > p:first-child, .prose > h2:first-child + p { display: flow-root; }
.prose > p:first-child::first-letter, .prose > h2:first-child + p::first-letter {
  float: left;
  font-family: var(--display); font-weight: 500;
  color: var(--accent);
  font-size: 3.55em; line-height: .8;
  padding: .07em .09em 0 0;
}
@supports (initial-letter: 2) or (-webkit-initial-letter: 2) {
  .prose > p:first-child::first-letter, .prose > h2:first-child + p::first-letter {
    float: none; font-size: inherit; line-height: inherit; padding: 0;
    -webkit-initial-letter: 2; initial-letter: 2;
    margin-right: .12em;
  }
}

.prose ul, .prose ol { margin: 0 0 1.2rem; padding-left: 1.4rem; }
.prose ul { list-style: none; }
.prose li { position: relative; margin: 0 0 .4rem; }
.prose ul > li::before {
  content: "–"; position: absolute; left: -1.25rem; top: 0;
  color: var(--accent);
}
.prose ol > li::marker { color: var(--accent); font-variant-numeric: lining-nums; }
.prose li > ul, .prose li > ol { margin: .35rem 0 .2rem; }
.prose li > p { margin: 0 0 .4rem; }
.prose a { overflow-wrap: anywhere; }

.prose blockquote {
  margin: 1.4rem 0; padding: .1rem 0 .1rem 1.1rem;
  border-left: 2px solid var(--accent-line);
  font-style: italic; color: var(--ink-2);
}
.prose code {
  font-family: ui-monospace, "Cascadia Mono", Menlo, Consolas, monospace;
  font-size: .86em;
  background: var(--paper-3);
  padding: .08em .3em;
  border-radius: 2px;
}
.prose pre {
  margin: 1.2rem 0 1.4rem;
  padding: .9rem 1rem;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  overflow-x: auto;
  line-height: 1.45;
  hyphens: none;
}
.prose pre code { background: none; padding: 0; font-size: .84rem; }
.table-wrap { overflow-x: auto; margin: 1.2rem 0 1.5rem; }
.prose table { border-collapse: collapse; font-size: .9rem; font-variant-numeric: lining-nums tabular-nums; }
.prose th, .prose td { padding: .35rem .7rem; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
.prose th { font-weight: 600; font-variant-caps: all-small-caps; letter-spacing: .08em; color: var(--muted); border-bottom-color: var(--ink); }

/* Pandoc figures: artwork on a light plate (diagrams have light-only artwork) */
.prose figure { margin: 2rem 0 2.25rem; position: relative; counter-increment: fig; }
.prose figure > img, .prose p > img {
  background: var(--plate);
  border: 1px solid var(--rule);
  padding: clamp(.75rem, 3vw, 1.5rem);
  box-shadow: var(--shadow);
  margin-inline: auto;
}
.prose figure > img { width: 100%; max-width: min(100%, 40rem); object-fit: contain; }
.prose figure figcaption {
  margin-top: .7rem;
  font-size: .86rem; line-height: 1.45;
  color: var(--muted); font-style: italic;
}
.prose figure figcaption::before {
  content: "Figure " counter(fig) ". ";
  font-style: normal; font-weight: 600;
  font-variant-caps: all-small-caps; letter-spacing: .1em;
  color: var(--accent);
}
@media (min-width: 64em) {
  .prose figure figcaption {
    position: absolute; top: .25rem;
    right: calc(-1 * (var(--mw) + var(--gap)));
    width: var(--mw);
    margin: 0;
    padding-top: .6rem;
    border-top: 1px solid var(--rule);
  }
  .prose figure figcaption::before { display: block; }
}
mjx-container { overflow-x: auto; overflow-y: hidden; max-width: 100%; }

/* Sidenotes: inline on narrow screens, floated into the right margin on wide ones */
.sn-ref {
  counter-increment: sn;
  font-size: .72em; line-height: 0; vertical-align: super;
  color: var(--accent); font-weight: 600;
  font-variant-numeric: lining-nums;
  margin-left: .05em;
}
.sn-ref::after { content: counter(sn); }
.sidenote {
  display: block;
  font-size: .86rem; line-height: 1.5;
  color: var(--ink-2);
  margin: .55rem 0 .9rem;
  padding: .55rem .8rem;
  border-left: 2px solid var(--accent-line);
  background: var(--accent-soft);
  overflow-wrap: anywhere;
  hyphens: manual;
}
.sidenote::before {
  content: counter(sn) ". ";
  color: var(--accent); font-weight: 600;
  font-variant-numeric: lining-nums;
}
.sidenote .url { font-size: .92em; color: var(--muted); }
@media (min-width: 64em) {
  .sidenote {
    float: right; clear: right;
    width: var(--mw);
    margin: .25rem calc(-1 * (var(--mw) + var(--gap))) 1rem 0;
    padding: 0;
    background: none;
    border-left: 0;
    font-size: .82rem;
    color: var(--muted);
  }
  .sidenote a { color: var(--ink-2); }
}

.pager { margin-top: 2.5rem; }
.pager .back {
  display: inline-block; margin-bottom: 1.1rem;
  font-variant-caps: all-small-caps; letter-spacing: .12em; font-weight: 600;
  text-decoration: none; color: var(--accent);
}
.pager .back:hover { text-decoration: underline; }
.pager ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .8rem; }
@media (min-width: 40em) { .pager ul { grid-template-columns: 1fr 1fr; } }
.pager li a {
  display: block; height: 100%;
  padding: .85rem 1rem;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  text-decoration: none;
  transition: border-color .15s;
}
.pager li a:hover { border-color: var(--accent-line); color: var(--ink); }
.pager .dir { display: block; font-size: .78rem; font-variant-caps: all-small-caps; letter-spacing: .14em; color: var(--accent); font-weight: 600; }
.pager .t { display: block; font-family: var(--display); font-size: 1.2rem; line-height: 1.25; margin: .15rem 0 .2rem; overflow-wrap: anywhere; }
.pager .d { display: block; font-size: .82rem; color: var(--muted); }
.pager li.next { text-align: right; }
@media (min-width: 40em) { .pager li.next { grid-column: 2; } }

/* ==========================================================
   Contact & archive
   ========================================================== */
.contact {
  margin-top: clamp(2.25rem, 6vw, 4rem);
  display: grid; gap: 2.25rem;
}
@media (min-width: 50em) {
  .contact { grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr); gap: clamp(2.5rem, 5vw, 4.5rem); align-items: center; }
}
.contact-text .section-title { margin-bottom: 1.2rem; }
.contact-text p { margin: 0 0 1rem; }
.contact-text .opening { font-size: 1.12em; }

.archive { margin-top: clamp(2.25rem, 6vw, 4rem); }
.archive .drawer-head .callno { font-size: .95rem; font-weight: 400; color: var(--muted); }
.card .sub .callno { font-style: normal; color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  html { scroll-behavior: auto; }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

@media print {
  .primary-nav, .pager, .skip, .toc summary::after { display: none; }
  body { background: #fff; color: #000; }
}