/*
  Bitcoin Canon — Reader
  The primary reading experience: layout, sidebar, passage list,
  chapter headings, passage cards, verse text, reader flow.
  This is the most important surface in the Canon.
*/

/* — Layout grid ———————————————————————————————— */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
  padding-bottom: 5rem;
}

/* — Sidebar ———————————————————————————————————— */
.sidebar {
  position: sticky;
  top: 1rem;
  display: grid;
  gap: 1.5rem;
}

.sidebar-card {
  padding: 0;
  border: 0;
  background: transparent;
}

/* Hide the concept nav card and canon law note from the sidebar */
.note-card { display: none; }
.sidebar-card:has(#conceptNav) { display: none; }

#bookNavTitle,
.sidebar-kicker {
  display: block;
  margin: 0 0 .65rem;
  padding-bottom: .45rem;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-muted);
  font-family: var(--f-sans);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}

/* Testament nav — book-to-book breadcrumb */
#testamentNav { display: none; }

/* — Chapter / section navigation —————————————— */
.section-nav {
  display: grid;
  gap: 0;
}

.section-nav a {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: .35rem;
  padding: .42rem 0;
  border-radius: 0;
  border-left: 2px solid transparent;
  color: var(--c-dim);
  font-family: var(--f-serif);
  font-size: .98rem;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.section-nav a[data-section="all"] { display: none; }

/* Roman numeral prefix */
.section-nav a::before {
  content: attr(data-roman);
  color: var(--c-dim);
  font-family: var(--f-sans);
  font-size: .6rem;
  font-weight: 600;
  padding-top: .22rem;
  letter-spacing: .04em;
}

.section-nav a:hover {
  color: var(--c-muted);
}

.section-nav a.active,
.section-nav a.reading-now {
  color: var(--c-ink);
  border-left-color: var(--c-seal);
  padding-left: .55rem;
}

.section-nav a.active::before,
.section-nav a.reading-now::before {
  color: var(--c-muted);
}

/* Hide the verse count from section nav */
.section-nav a span:last-child { display: none; }

/* — Canon preface (book intro) ——————————————— */
/*
  Hidden during focused chapter reading — it's front matter,
  not something you need on every chapter load.
  The sidebar shows book/chapter context.
*/
.canon-preface { display: none; }

.authority-seal { display: none; }
.book-status-row { display: none; }

/* — Canon bridge (section intro) ———————————— */
/*
  Also hidden during reading — it's a "reading path" prompt
  that belongs on the front door, not between you and the text.
*/
.canon-bridge { display: none; }

/* — Reading controls (book turner + chapter strip) — */
.reading-controls {
  margin-bottom: 1rem;
}

.book-turner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.25rem;
  align-items: center;
  margin-bottom: 1.35rem;
  padding: .7rem 0;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.book-turner button {
  display: flex;
  flex-direction: column;
  position: relative;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--c-muted);
  padding: .25rem 1.15rem .25rem 0;
  text-align: left;
  font-size: .78rem;
  transition: color var(--fast) var(--ease);
}

.book-turner button:last-child {
  padding: .25rem 0 .25rem 1.15rem;
  text-align: right;
}

.book-turner button::after {
  content: "←";
  position: absolute;
  top: 50%;
  right: 0;
  color: var(--c-dim);
  transform: translateY(-50%);
}

.book-turner button:last-child::after {
  content: "→";
  right: auto;
  left: 0;
}

.book-turner button span {
  color: var(--c-dim);
  font-size: .65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: .1rem;
}

.book-turner button strong {
  color: var(--c-ink);
  font-family: var(--f-serif);
  font-size: 1.08rem;
  font-weight: 500;
}

.book-turner button:hover {
  color: var(--c-ink);
}

.current-book-seal {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .2rem;
  text-align: center;
  color: var(--c-dim);
  font-size: .65rem;
}

.current-book-seal span {
  font-family: var(--f-sans);
  font-size: .6rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.current-book-seal strong {
  color: var(--c-muted);
  font-family: var(--f-serif);
  font-size: .92rem;
  font-weight: 500;
}

.current-book-seal small {
  color: var(--c-dim);
  font-size: .68rem;
}

.current-book-seal button {
  display: none;
  margin-top: .2rem;
  border: 0;
  background: transparent;
  color: var(--c-dim);
  font-size: .65rem;
  padding: 0;
  text-decoration: underline;
  text-decoration-color: var(--c-line);
}

/* Chapter strip — hidden; sidebar handles chapter nav */
.chapter-strip { display: none; }

.chapter-picker {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  font-size: .72rem;
  color: var(--c-dim);
}

.chapter-picker select {
  border: 1px solid var(--c-line);
  border-radius: .5rem;
  background: transparent;
  color: var(--c-muted);
  padding: .3rem .5rem;
  font-size: .72rem;
}

.chapter-chip {
  display: flex;
  flex-direction: column;
  gap: .1rem;
  border: 1px solid var(--c-line);
  border-radius: .65rem;
  background: transparent;
  color: var(--c-muted);
  padding: .45rem .7rem;
  text-align: left;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}

.chapter-chip span {
  font-size: .58rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--c-dim);
}

.chapter-chip strong {
  font-family: var(--f-serif);
  font-size: .92rem;
  font-weight: 500;
  color: var(--c-muted);
  line-height: 1.1;
}

.chapter-chip small {
  font-size: .62rem;
  color: var(--c-dim);
}

.chapter-chip:hover {
  color: var(--c-ink);
  border-color: var(--c-line-strong);
  background: rgba(220, 226, 236, .05);
}

.chapter-chip.active {
  border-color: var(--c-seal-line);
  background: var(--c-seal-bg);
}

.chapter-chip.active strong,
.chapter-chip.active span {
  color: var(--c-ink);
}

/* — Hide front door when reading — on all viewports — */
body[data-mode="reader"] #top { display: none; }

/* The reading room is a paper leaf inside the Midnight binding. */
body[data-mode="reader"] {
  --reader-paper: #f4eddc;
  --reader-paper-edge: #e2d3b3;
  --reader-ink: #2b2118;
  --reader-muted: #675944;
  --reader-rule: rgba(93, 69, 34, .24);
  --reader-seal: #9a6d16;
}

body[data-mode="reader"] .layout {
  width: min(1180px, calc(100% - 2rem));
  grid-template-columns: 210px minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
}

body[data-mode="reader"] .reader {
  color: var(--reader-ink);
}

body[data-mode="reader"] .reader-study-grid {
  display: block;
  max-width: 860px;
  position: relative;
}

body[data-mode="reader"] .passage-list {
  width: 100%;
  max-width: none;
  min-height: 70vh;
  padding: clamp(2rem, 6vw, 5rem) clamp(1.4rem, 8vw, 6.5rem) clamp(3rem, 7vw, 6rem);
  border: 1px solid var(--reader-paper-edge);
  background:
    linear-gradient(90deg, rgba(114, 84, 39, .035), transparent 10%, transparent 90%, rgba(114, 84, 39, .035)),
    var(--reader-paper);
  color: var(--reader-ink);
  box-shadow: 0 1.2rem 3.5rem rgba(0, 0, 0, .24), inset 0 0 4rem rgba(117, 83, 29, .045);
}

body[data-mode="reader"] .study-rail {
  display: block;
  position: absolute;
  top: 1.1rem;
  right: 1rem;
  z-index: 4;
}

body[data-mode="reader"] .study-rail .study-card { display: none; }
body[data-mode="reader"] .study-rail .study-card-chain { display: block; border: 0; padding: 0; }
body[data-mode="reader"] .study-card-chain p,
body[data-mode="reader"] .study-card-chain span { display: none; }
body[data-mode="reader"] .study-card-chain strong {
  background: var(--c-seal-ground);
  color: var(--c-seal);
}

@media (max-width: 1100px) {
  body[data-mode="reader"] .study-rail { display: none; }
}

/* — Sticky reading crumb — shows current book + chapter while scrolling — */
.reading-crumb {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .45rem 0;
  margin: 0 0 .5rem;
  border-bottom: 1px solid var(--c-line);
  background: var(--c-bg);
  font-family: var(--f-sans);
  font-size: .68rem;
  color: var(--c-dim);
}

.reading-crumb-book {
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.reading-crumb-sep {
  color: var(--c-line-strong);
}

.reading-crumb-chapter {
  color: var(--c-muted);
  font-style: italic;
  font-family: var(--f-serif);
  font-size: .82rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* — Reader head ———————————————————————————— */
.reader-head { display: none; }

/* — Featured quote ———————————————————————— */
.featured-quote { display: none; }

/* — Reader dock (mobile only — hidden desktop) ——— */
.reader-dock { display: none; }

/* — Passage list ———————————————————————————— */
.passage-list {
  max-width: var(--reading-width);
  display: grid;
  gap: 0;
}

/* — Chapter headings ———————————————————————— */
.chapter-heading {
  scroll-margin-top: 5.5rem;
  position: relative;
  padding: 1.35rem 0 1.2rem;
  text-align: left;
  border-top: 1px solid var(--c-line-strong);
  border-bottom: 1px solid var(--c-line-strong);
  margin-bottom: 0;
}

body[data-mode="reader"] .chapter-heading {
  padding: 2.1rem 0 1.45rem;
  border-top: 0;
  border-bottom-color: var(--reader-rule);
  text-align: center;
}

body[data-mode="reader"] .chapter-heading::before {
  content: attr(data-running-head);
  display: block;
  margin: 0 0 2.6rem;
  color: var(--reader-muted);
  font: 600 .58rem/1 var(--f-sans);
  letter-spacing: .22em;
}

body[data-mode="reader"] .chapter-heading p {
  color: var(--reader-muted);
  font-family: var(--f-sans);
}

body[data-mode="reader"] .chapter-heading h3 {
  max-width: 18ch;
  margin-inline: auto;
  color: var(--reader-ink);
  font-size: clamp(2.55rem, 6vw, 4.5rem);
  line-height: .92;
}

body[data-mode="reader"] .chapter-heading small,
body[data-mode="reader"] .chapter-heading .chapter-summary { color: var(--reader-muted); }

body[data-mode="reader"] .chapter-heading::after {
  left: 50%;
  width: 3.5rem;
  border-color: var(--reader-seal);
  transform: translateX(-50%);
}

/* First chapter heading in the list needs less top padding */
.passage-list > .chapter-heading:first-child {
  padding-top: 1.35rem;
}

.chapter-heading p {
  display: block;
  margin: 0 0 .65rem;
  color: var(--c-muted);
  font-family: var(--f-mono);
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.chapter-heading h3 {
  color: var(--c-ink);
  font-family: var(--f-serif);
  font-size: clamp(2.3rem, 5vw, 3.65rem);
  line-height: .94;
  letter-spacing: -.035em;
  max-width: 15ch;
}

.chapter-heading span { display: none; }

.chapter-summary {
  display: block;
  max-width: 64ch;
  margin: 1rem 0 0;
  padding: .65rem 0 .1rem;
  border-top: 1px solid var(--c-line);
  color: var(--c-dim);
  font-family: var(--f-serif);
  font-size: .88rem;
  font-style: normal;
  font-weight: 400;
  line-height: 1.48;
}

/* Override .chapter-heading p specificity so summary uses muted, not amber */
.chapter-heading .chapter-summary {
  display: block;
  max-width: 64ch;
  margin: 1rem 0 0;
  padding: .65rem 0 .1rem;
  border-top: 1px solid var(--c-line);
  color: var(--c-dim);
  font-family: var(--f-serif);
  font-size: .88rem;
  font-style: normal;
  font-weight: 400;
  line-height: 1.48;
  text-transform: none;
  letter-spacing: normal;
}

.chapter-heading .chapter-summary b {
  display: block;
  margin-bottom: .3rem;
  color: var(--c-muted);
  font-family: var(--f-mono);
  font-size: .58rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}

/* ── Book editorial introduction ─────────────────────── */
.book-editorial-intro {
  max-width: 62ch;
  margin: 0 auto 2.5rem;
  padding: 1.6rem 0 1.8rem;
  border-bottom: 1px solid var(--c-line);
}
.book-editorial-intro-head {
  font-family: var(--f-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-amber);
  margin-bottom: 1rem;
}
.book-editorial-intro p {
  font-family: var(--f-serif);
  font-size: 1.04rem;
  font-style: italic;
  line-height: 1.68;
  color: var(--c-muted);
  margin-bottom: .9em;
}
.book-editorial-intro p:last-child { margin-bottom: 0; }

/* Chapter attribution line — author + source, scripture colophon style */
.chapter-byline,
.chapter-source-line {
  display: inline;
  font-family: var(--f-serif);
  font-size: .88rem;
  font-style: italic;
  color: var(--c-muted);
  line-height: 1.4;
}

.chapter-heading small {
  display: block;
  margin-top: .45rem;
}

.chapter-heading small + small {
  display: inline;
  margin-top: 0;
}

/* Decorative ornament between chapter heading and first verse */
.chapter-heading::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 4.25rem;
  border-bottom: 2px solid var(--c-seal);
}

/* Visual break before non-first chapters in All Chapters view */
.passage-list .chapter-heading:not(:first-child) {
  margin-top: 2rem;
  padding-top: 1.35rem;
}

/* Verse reference — e.g. "Satoshi 1:3" — in amber, monospace */
.ref {
  color: var(--c-seal);
  font-family: var(--f-mono);
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1;
}

/* Section pill — hidden (section shown in chapter heading) */
.section-pill { display: none; }

/* Inline source mark — small button to open the source drawer */
.source-mark {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: transparent;
  color: var(--c-dim);
  padding: .1rem .35rem;
  font-family: var(--f-sans);
  font-size: .58rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.source-mark:hover {
  color: var(--c-muted);
  border-color: var(--c-line-strong);
}

/* — Passage context note — editorial bridge for reply passages — */
.passage-context {
  margin: 0 0 .5rem;
  font-family: var(--f-serif);
  font-size: .88rem;
  font-style: italic;
  color: var(--c-dim);
  line-height: 1.5;
}

.passage-context::before {
  content: "— ";
  font-style: normal;
  font-size: .75rem;
  letter-spacing: .04em;
}

/* — Verse text ———————————————————————————— */
.passage-text {
  margin: 0;
  font-family: var(--f-serif);
  font-size: calc(clamp(1.22rem, 1.55vw, 1.46rem) * var(--reader-scale, 1));
  line-height: 1.84;
  color: var(--c-ink);
  max-width: var(--reading-width);
  word-break: break-word;
}

/* Inline verse superscripts */
.passage-text sup {
  color: var(--c-seal);
  font-family: var(--f-mono);
  font-size: .65em;
  margin-right: .2rem;
  vertical-align: super;
  line-height: 0;
}

/* — Verse number — amber inline superscript, NOT a button box — */
.verse-number {
  display: inline;
  border: 0;
  background: transparent;
  color: var(--c-seal);
  font-family: var(--f-mono);
  font-size: .58em;
  font-weight: 700;
  padding: 0 .3em 0 0;
  vertical-align: super;
  line-height: 0;
  cursor: pointer;
  transition: color var(--fast) var(--ease);
}
.verse-number:hover { color: var(--c-seal-2); }

/* — Mobile chapter nav pills — hidden on desktop ———————— */
.mobile-chapter-nav { display: none; }

@media (max-width: 600px) {
  .mobile-chapter-nav {
    display: flex;
    overflow-x: auto;
    gap: .3rem;
    padding: .45rem 1.25rem;
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-line);
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    position: sticky;
    top: 0;
    z-index: 35;
  }

  .mobile-chapter-nav::-webkit-scrollbar { display: none; }

  .mob-chip {
    flex: 0 0 auto;
    padding: .25rem .55rem;
    border: 1px solid var(--c-line);
    border-radius: 999px;
    background: transparent;
    color: var(--c-dim);
    font-family: var(--f-mono);
    font-size: .65rem;
    font-weight: 700;
    white-space: nowrap;
    transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
  }

  .mob-chip.active {
    border-color: var(--c-seal-line);
    background: var(--c-seal-bg);
    color: var(--c-ink);
  }
}

/* — Drop cap — chapter-opening verse first letter ———————— */
.section-opening .passage-text {
  display: flow-root;
}

.drop-letter {
  float: left;
  font-family: var(--f-serif);
  font-size: 5.5em;
  line-height: 0.72;
  margin: 0.05em 0.1em 0 0;
  color: var(--c-amber);
  font-weight: 500;
  user-select: none;
}

@media (max-width: 600px) {
  .drop-letter { font-size: 4.5em; line-height: 0.76; }
}

/* — Passage dateline — the date of this specific writing ———— */
.passage-dateline {
  display: block;
  margin-top: .6rem;
  font-family: var(--f-mono);
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--c-dim);
  font-style: normal;
}

/* — Chapter date range — appears in the chapter heading byline — */
.chapter-date-range {
  font-style: normal;
  color: var(--c-dim);
  opacity: 1;
}

/* — Verse turner — prev/next verse navigation — */
.verse-turner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  gap: .5rem;
  padding-bottom: .45rem;
  margin-bottom: .25rem;
  border-bottom: 1px solid var(--c-line);
}

.verse-nav {
  border: 0;
  background: transparent;
  color: var(--c-dim);
  font-family: var(--f-sans);
  font-size: .68rem;
  padding: 0;
  max-width: 46%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color var(--fast) var(--ease);
}
.verse-nav:hover { color: var(--c-muted); }
.verse-nav[data-section] {
  color: var(--c-muted);
  font-size: .65rem;
}

/* — Doctrine links — hide in reader (internal graph metadata) — */
.doctrine-links { display: none; }

/* — Annotation slot ————————————————————— */
.annotation-slot {
  display: inline;
}

.concordance-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1rem;
  height: 1rem;
  margin: 0 0 0 .18rem;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--c-dim);
  padding: 0;
  font-family: var(--f-mono);
  font-size: .48rem;
  line-height: 1;
  vertical-align: super;
  transform: translateY(-.08em);
  transition: color var(--fast) var(--ease);
}

.concordance-mark:hover,
.concordance-mark:focus-visible { color: var(--c-seal); }

.passage-notes {
  display: grid;
  gap: .4rem;
}

.passage-notes section {
  border-left: 2px solid var(--c-line-strong);
  padding: .12rem 0 .12rem .7rem;
  color: var(--c-muted);
}

.passage-notes strong {
  color: var(--c-ink);
  font-size: .88rem;
}

.passage-notes p {
  margin: .18rem 0 0;
  line-height: 1.5;
  font-size: .9rem;
}

/* — Study grid — passage list + study rail —————— */
.reader-study-grid {
  display: grid;
  grid-template-columns: minmax(0, var(--reading-width)) minmax(180px, 220px);
  gap: 4rem;
  align-items: start;
}

body[data-mode="reader"] .reader-study-grid + .reading-controls {
  margin: 2.5rem 0 0;
}

/* — Study rail ———————————————————————————— */
.study-rail {
  position: sticky;
  top: 1rem;
  display: grid;
  gap: 1rem;
}

.study-card {
  border-top: 1px solid var(--c-line);
  padding-top: .65rem;
}

.study-card p {
  margin: 0 0 .3rem;
  color: var(--c-muted);
  font-family: var(--f-sans);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.study-card strong {
  display: block;
  color: var(--c-ink);
  font-family: var(--f-serif);
  font-size: 1.18rem;
  font-weight: 500;
  line-height: 1.08;
}

.study-card span {
  display: block;
  margin-top: .3rem;
  color: var(--c-muted);
  font-family: var(--f-serif);
  font-size: .95rem;
  font-style: italic;
  line-height: 1.35;
}

.study-concepts {
  display: grid;
  gap: .15rem;
  margin-top: .45rem;
}

.study-concepts button {
  border: 0;
  border-left: 1px solid var(--c-line-strong);
  border-radius: 0;
  background: transparent;
  color: var(--c-dim);
  padding: .2rem 0 .2rem .5rem;
  font-family: var(--f-mono);
  font-size: .6rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-align: left;
  text-transform: uppercase;
  transition: color var(--fast) var(--ease), border-left-color var(--fast) var(--ease);
}

.study-concepts button:hover {
  color: var(--c-muted);
  border-left-color: var(--c-seal);
}

.study-card-chain {
  order: -1;
  padding: .85rem 0 .9rem;
  border-top-color: var(--c-line-strong);
  border-bottom: 1px solid var(--c-line-strong);
}

.study-card-chain p { color: var(--c-muted); }

.study-card-chain strong {
  width: max-content;
  padding: 0 .28rem;
  border-radius: 0;
  background: var(--c-seal-ground);
  color: var(--c-seal);
  font-family: var(--f-mono);
  font-size: 1rem;
  letter-spacing: .035em;
}

.study-card-chain span {
  font-size: .82rem;
  font-style: normal;
}

/* Hide redundant study rail cards — info already visible in sidebar/heading */
.study-card-edition { display: none; }
.study-card-volume  { display: none; }
.study-card-book    { display: none; }

@media (max-width: 1100px) {
  .reader-study-grid { display: block; }
  .study-rail { display: none; }
}

/* — Reader flow — end of chapter/book navigation — */
.reader-flow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--c-line);
}

.reader-flow-start {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--c-line);
}

.reader-flow button {
  display: flex;
  flex-direction: column;
  gap: .18rem;
  border: 0;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  border-radius: 0;
  background: transparent;
  color: var(--c-muted);
  padding: .75rem 0 .8rem;
  text-align: left;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.reader-flow button:last-child { text-align: right; }

.reader-flow button span {
  font-size: .62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--c-dim);
}

.reader-flow button strong {
  font-family: var(--f-serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--c-ink);
  line-height: 1.1;
}

.reader-flow button:hover {
  border-color: var(--c-line-strong);
}

.reader-flow button.primary {
  border-top-color: var(--c-seal-line);
  background: transparent;
}

.reader-flow button.primary strong { color: var(--c-ink); }

/* Chapter ending card */
.chapter-ending {
  grid-column: 1 / -1;
  text-align: center;
  padding: .5rem 0 1.35rem;
  color: var(--c-dim);
  font-size: .75rem;
  font-family: var(--f-sans);
}

.chapter-ending-mark {
  display: grid;
  grid-template-columns: minmax(2rem, 5rem) auto minmax(2rem, 5rem);
  gap: .75rem;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.1rem;
}

.chapter-ending-mark i {
  width: 5rem;
  border-top: 1px solid var(--c-line-strong);
}

.chapter-ending-mark b {
  width: .48rem;
  height: .48rem;
  background: var(--c-seal);
  transform: rotate(45deg);
}

.chapter-ending p {
  margin: 0 0 .2rem;
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.chapter-ending h3 {
  color: var(--c-ink);
  font-family: var(--f-serif);
  font-size: 1.6rem;
  font-weight: 500;
}

.chapter-ending span {
  display: block;
  margin-top: .3rem;
  color: var(--c-muted);
  font-size: .88rem;
  font-style: italic;
  font-family: var(--f-serif);
}

.chapter-ending small {
  display: block;
  margin-top: .75rem;
  color: var(--c-dim);
  font-family: var(--f-mono);
  font-size: .58rem;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.chapter-ending small strong {
  display: inline-block;
  padding: 0 .24rem;
  border-radius: 0;
  background: var(--c-seal-ground);
  color: var(--c-seal);
  font-weight: 600;
}

/* Reader flow end */
.reader-flow-end {
  background: transparent;
  border: 0;
  box-shadow: none;
}

/* — Empty state ———————————————————————————— */
.empty-state {
  padding: 2.5rem;
  text-align: center;
  background: transparent;
  border: 1px solid var(--c-line);
  border-radius: 1rem;
}

.empty-state h3 {
  font-family: var(--f-serif);
  font-size: 2rem;
  font-weight: 500;
  margin-bottom: .5rem;
}

.empty-state p { color: var(--c-muted); line-height: 1.55; }

.empty-actions {
  display: flex;
  justify-content: center;
  gap: .5rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.empty-actions button {
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: transparent;
  color: var(--c-muted);
  padding: .45rem .85rem;
  font-size: .82rem;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.empty-actions button:hover {
  color: var(--c-ink);
  border-color: var(--c-line-strong);
}

/* — Responsive ——————————————————————————— */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .sidebar {
    position: static;
    border-bottom: 1px solid var(--c-line);
    padding-bottom: 1rem;
    margin-bottom: .5rem;
  }

  .section-nav {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }

  .book-turner { grid-template-columns: 1fr 1fr; }
  .current-book-seal { display: none; }

  .reader-study-grid { display: block; }
  .study-rail { display: none; }
}

/* — Phone (touch) —————————————————————— */
@media (max-width: 600px) {
  /* Slightly smaller chapter heading to leave room for text */
  .chapter-heading {
    padding: 2.5rem 0 1rem;
  }

  .chapter-heading h3 {
    font-size: clamp(1.9rem, 8vw, 2.8rem);
  }

  /* Slightly larger passage text on phones for readability */
  .passage-text {
    font-size: calc(clamp(1.18rem, 4.5vw, 1.35rem) * var(--reader-scale, 1));
    line-height: 1.9;
  }

  /* On phone, collapse sidebar to just the chapter nav strip */
  .sidebar {
    border-bottom: 1px solid var(--c-line);
    padding-bottom: .75rem;
    margin-bottom: .25rem;
    gap: 0;
  }

  /* Hide all sidebar cards except the one with the section nav */
  .sidebar-card:not(:has(#sectionNav)) {
    display: none;
  }

  /* Section nav becomes a horizontal scrollable pill row */
  .section-nav {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: .4rem;
    padding-bottom: .1rem;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .section-nav::-webkit-scrollbar { display: none; }

  /* Each chapter link becomes a compact pill */
  .section-nav a {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    padding: .28rem .65rem;
    border: 1px solid var(--c-line);
    border-left-width: 1px;
    border-radius: 999px;
    white-space: nowrap;
    font-size: .78rem;
    color: var(--c-muted);
    line-height: 1;
  }

  .section-nav a.active {
    border-color: var(--c-line-strong);
    color: var(--c-ink);
    background: rgba(220, 195, 150, .06);
  }

  /* Hide the roman numeral prefix — too cramped in pill form */
  .section-nav a::before {
    display: none;
  }

  /* Also hide the book nav title label */
  #bookNavTitle { display: none; }

  /* — Mobile chapter nav — horizontal scroll pill strip ——— */
  .chapter-strip {
    display: flex;
    overflow-x: auto;
    gap: .35rem;
    padding: .55rem 1.25rem .55rem;
    margin: 0 -1.25rem .5rem;
    border-bottom: 1px solid var(--c-line);
    background: var(--c-bg);
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    position: sticky;
    top: 2.2rem; /* sits flush below the reading crumb */
    z-index: 30;
  }

  .chapter-strip::-webkit-scrollbar { display: none; }

  .chapter-strip .chapter-chip {
    flex: 0 0 auto;
    flex-direction: row;
    align-items: center;
    padding: .28rem .65rem;
    border-radius: 999px;
    gap: 0;
  }

  /* Compact pills: chapter number only */
  .chapter-strip .chapter-chip strong,
  .chapter-strip .chapter-chip small { display: none; }

  .chapter-strip .chapter-chip span {
    font-size: .68rem;
    white-space: nowrap;
    color: var(--c-muted);
  }

  .chapter-strip .chapter-chip.active {
    background: var(--c-seal-bg);
    border-color: var(--c-seal-line);
  }

  .chapter-strip .chapter-chip.active span { color: var(--c-ink); }
}

/* ══════════════════════════════════════════════════════════════
   Flowing scripture reading (2026-06-16)
   Verses read as continuous prose with inline verse numbers.
   Per-verse chrome removed; clicking a verse opens the citation
   drawer (quote / card / share / source). Drop cap on first verse.
   ══════════════════════════════════════════════════════════════ */
.chapter-prose {
  font-family: "EB Garamond", Georgia, serif;
  font-size: 1.24rem;
  line-height: 1.92;
  max-width: 40rem;
  margin: 0 auto 2.6rem;
  text-align: left;
  hyphens: auto;
}

body[data-mode="reader"] .chapter-prose {
  max-width: 66ch;
  margin: 0 auto 3.8rem;
  color: var(--reader-ink);
  font-size: calc(1.24rem * var(--reader-scale, 1));
  line-height: 1.78;
}

body[data-mode="reader"] .chapter-prose .verse { color: var(--reader-ink); }
body[data-mode="reader"] .chapter-prose .verse-number { color: var(--reader-seal); }
body[data-mode="reader"] .concordance-mark { color: var(--reader-muted); }
body[data-mode="reader"] .chapter-prose .verse:hover {
  background: rgba(154, 109, 22, .07);
  box-shadow: 0 0 0 .16em rgba(154, 109, 22, .07);
}

body[data-mode="reader"] .chapter-prose .drop-letter {
  width: 3.4rem;
  height: 3.4rem;
  color: var(--reader-seal);
}

body[data-mode="reader"] .chapter-prose .drop-letter .dropchar { color: var(--reader-seal); }
body[data-mode="reader"] .chapter-prose .drop-letter .dropframe { color: var(--reader-seal); }

.chapter-witness {
  clear: both;
  margin: 2.5rem 0 0;
  padding: .85rem 0 0 1.5rem;
  border-top: 1px solid var(--reader-rule, var(--c-line));
  color: var(--reader-muted, var(--c-muted));
  font-family: var(--f-serif);
  font-size: .84rem;
  line-height: 1.45;
  text-indent: -1.5rem;
}

.chapter-witness p span {
  margin-right: .4rem;
  color: var(--reader-seal, var(--c-seal));
  font: 700 .6rem/1 var(--f-sans);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.chapter-witness a,
.chapter-witness strong {
  color: var(--reader-ink, var(--c-ink));
  font-weight: 600;
}

.chapter-witness a { text-decoration: underline; text-decoration-color: var(--reader-rule, var(--c-line)); }
.chapter-witness small { display: block; margin-top: .2rem; font-size: .78rem; text-indent: 0; }
/* ── Verse-per-line layout (Bible / Exodus style) ─────────────────
   For FAQ, enumerated, and list-like chapters: each verse on its own
   line with a hanging number, instead of flowing into one paragraph. */
.chapter-prose.layout-verse .verse-para { margin: 0 0 0.15em; }
.chapter-prose.layout-verse .verse {
  display: block;
  margin: 0.3em 0;
  padding-left: 1.8em;
  text-indent: -1.8em;
}
.chapter-prose.layout-verse .verse-body { display: inline; }
.chapter-prose.layout-verse .verse-number { margin-right: 0.15em; }
/* List items (auto-detected leading marker) pop out as indented lines. */
.chapter-prose .verse-list-item {
  display: block;
  margin: 0.2em 0 0.2em 1.1em;
  padding-left: 0.6em;
  text-indent: -0.6em;
}
.chapter-prose .verse {
  cursor: pointer;
  border-radius: 3px;
  transition: background-color .12s ease, box-shadow .12s ease;
}
/* Chapter-end ornament — diamond fleuron closing each chapter */
.chapter-ornament {
  display: flex;
  justify-content: center;
  margin: 2.2rem auto 0.4rem;
  color: var(--c-amber);
  opacity: 0.85;
  clear: both;
}
.chapter-ornament svg {
  width: 11rem;
  max-width: 60%;
  height: auto;
  display: block;
}
.chapter-prose .verse:hover {
  background: var(--c-seal-bg);
  box-shadow: 0 0 0 .16em var(--c-seal-bg);
}
.chapter-prose .verse-number {
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.6em;
  font-weight: 600;
  vertical-align: super;
  line-height: 0;
  color: var(--c-seal);
  background: none; border: 0; padding: 0;
  margin: 0 0.16em 0 0.42em;
  cursor: pointer;
}
.chapter-prose .section-opening .verse-number { margin-left: 0; }
.chapter-prose .verse-body { display: inline; }
.chapter-prose .annotation-slot { display: inline; }
.chapter-prose .drop-letter {
  float: left; position: relative;
  width: 3rem; height: 3rem;
  margin: 0.2rem 0.7rem 0.15rem 0;
  color: var(--c-amber);
  cursor: pointer;
}
.chapter-prose .drop-letter .dropframe { position: absolute; inset: 0; }
.chapter-prose .drop-letter .dropframe svg { width: 100%; height: 100%; display: block; }
.chapter-prose .drop-letter .dropchar {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-family: var(--f-serif); font-size: 1.85rem; line-height: 1; font-weight: 500;
  color: var(--c-amber);
}
/* Typeset verses (formula / code / table) break out of the prose flow */
.chapter-prose .verse-typeset { display: block; margin: 1.1rem 0; cursor: default; }
.chapter-prose .verse-typeset .verse-number { vertical-align: top; }
.chapter-prose .verse-type-formula .verse-body {
  display: block; text-align: center; font-style: italic; white-space: pre-wrap;
}
.chapter-prose .verse-type-code .verse-body,
.chapter-prose .verse-type-table .verse-body {
  display: block; white-space: pre-wrap;
  font-family: "Menlo", "Courier New", monospace; font-size: 0.82rem; line-height: 1.5;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-line-strong); border-radius: var(--radius-md);
  padding: 0.7rem 0.9rem;
}

/* ── Narrow-viewport overflow guard (2026-06-20) ─────────────────
   Grid/flex items default to min-width:auto and will NOT shrink below
   their content's min-content width. Long unbreakable tokens — Satoshi's
   Freenet keys (USK@…), source URLs, sourceforge links — and wide typeset
   math would otherwise force the whole reading column past a phone's
   viewport, clipping every line of prose. Let the columns shrink, make
   long tokens wrap, and let typeset blocks scroll within themselves. */
.reader, .reader-study-grid > *, .passage-list, .chapter-prose { min-width: 0; }
.chapter-prose, .writing-excerpt, .study-card, .source-ledger { overflow-wrap: anywhere; }
.chapter-prose .verse-type-code .verse-body,
.chapter-prose .verse-type-table .verse-body,
.chapter-prose .verse-type-formula .verse-body { max-width: 100%; overflow-x: auto; }

/* Paragraph rhythm: verses group into source paragraphs (2026-06-16) */
.chapter-prose .verse-para {
  margin: 0 0 0.95em 0;
}
.chapter-prose .verse-para:last-child { margin-bottom: 0; }
/* drop cap lives in the opening paragraph and the first paragraph wraps it */
.chapter-prose .para-opening { min-height: 2.4em; }

/* Correspondence speaker labels (Sirius) */
.chapter-prose .speaker-label {
  display: inline-block;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.6em;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-right: 0.55em;
}
.chapter-prose .verse-para-speaker { margin-top: 1.1em; }

/* ── Search results state (Tier 1 UI, 2026-06-16) ───────────── */
.search-banner {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  max-width: 40rem; margin: 0 auto 1.5rem; padding: 0.7rem 1rem;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-none); background: var(--c-panel);
}
.search-banner p { margin: 0; font-size: 0.96rem; line-height: 1.4; color: var(--c-ink); }
.search-banner strong { color: var(--c-ink); font-weight: 700; }
.search-banner em { font-style: italic; color: var(--c-muted); }
.search-banner-clear {
  flex: none; font-family: "Inter", system-ui, sans-serif; font-size: 0.72rem; font-weight: 600;
  letter-spacing: .03em; color: var(--c-muted); background: none;
  border: 0; border-bottom: 1px solid var(--c-line); border-radius: var(--radius-none);
  padding: 0.32rem 0.72rem; cursor: pointer; white-space: nowrap; transition: background .12s;
}
.search-banner-clear:hover { color: var(--c-ink); background: var(--c-panel-2); }
.top-search-clear {
  background: none; border: 0; color: var(--c-muted); cursor: pointer;
  font-size: 0.82rem; padding: 0 0.15rem 0 0.35rem; line-height: 1; opacity: .75;
}
.top-search-clear:hover { opacity: 1; }

/* Cross-book results use an apparatus register rather than chapter furniture. */
.search-register {
  max-width: 46rem;
  margin: 0 auto;
  border-top: 1px solid var(--c-line-strong);
}

.search-register-row {
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  gap: var(--space-4);
  padding: .9rem 0 1rem;
  border-bottom: 1px solid var(--c-line);
}

.search-register-book {
  color: var(--c-muted);
  font: 600 var(--type-2xs)/1.45 var(--f-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.search-register-book span {
  display: block;
  margin-top: .25rem;
  color: var(--c-dim);
  font-weight: 400;
  letter-spacing: .04em;
  text-transform: none;
}

.search-register-hit {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: var(--space-4);
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: var(--radius-none);
  background: transparent;
  color: var(--c-ink);
  text-align: left;
}

.search-register-hit > strong {
  align-self: start;
  justify-self: start;
  padding: .12rem .25rem;
  background: var(--c-seal-ground);
  color: var(--c-seal);
  font: 700 var(--type-xs)/1.55 var(--f-mono);
  font-variant-numeric: tabular-nums;
}

.search-register-hit > span {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  color: var(--c-ink);
  font: 400 1rem/1.5 var(--f-serif);
}

.search-register-hit:hover > span { color: var(--c-muted); }
.search-register-hit mark { color: var(--c-ink); }

@media (max-width: 760px) {
  .search-banner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: .45rem;
    padding: .6rem .7rem;
  }
  .search-banner p {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    font-size: .86rem;
    line-height: 1.3;
  }
  .search-banner-clear {
    align-self: center;
    padding-inline: .25rem;
  }
  .search-register-row,
  .search-register-hit { grid-template-columns: 1fr; gap: .35rem; }
  .search-register-row { padding: .8rem 0 .9rem; }
  .search-register-book span { display: inline; margin-left: .45rem; }
}

/* Cross-references in the citation drawer (study-Bible "see also") */
.citation-crossrefs { margin-top: 1rem; }
.citation-crossrefs > p {
  font-family: "Inter", system-ui, sans-serif; font-size: .58rem; font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase; color: var(--c-muted); margin-bottom: .5rem;
}
.crossref-link {
  display: block; text-decoration: none; cursor: pointer;
  border-left: 2px solid var(--c-line-strong);
  padding: .3rem 0 .3rem .7rem; margin-bottom: .5rem; transition: border-color .12s;
}
.crossref-link:hover { border-left-color: var(--c-ink); }
.crossref-link b {
  display: block; font-family: "Inter", system-ui, sans-serif; font-size: .72rem;
  font-weight: 600; color: var(--c-ink); letter-spacing: .01em;
}
.crossref-link span {
  display: block; font-family: "EB Garamond", Georgia, serif; font-size: .92rem;
  font-style: italic; color: var(--c-ink); opacity: .82; line-height: 1.4; margin-top: .1rem;
}
.field-copy {
  font-family: "Inter", system-ui, sans-serif; font-size: 0.58rem; font-weight: 600;
  letter-spacing: .05em; text-transform: uppercase; color: var(--c-muted);
  background: none; border: 1px solid var(--c-line);
  border-radius: 4px; padding: 0.12rem 0.42rem; cursor: pointer; opacity: .82; transition: all .12s;
}
.field-copy:hover { opacity: 1; background: var(--c-panel-2); }

/* Theming: tokenize masthead + the theme toggle control */
.masthead { background: var(--c-bg); }
#themeToggle {
  background: none; border: 0; cursor: pointer; color: var(--c-muted);
  font-family: "Inter", system-ui, sans-serif; font-size: 0.78rem; padding: 0 .3rem; opacity: .85;
}
#themeToggle:hover { opacity: 1; }
.chapter-prose .verse-number { color: var(--c-seal); }

/* ── Source figures (Satoshi's diagrams, etc.) ─────────────────────
   SVGs use currentColor, so the line art inherits the chapter's ink and
   adapts automatically across the dark / sepia / paper themes. */
.chapter-prose .canon-figure {
  margin: 2.4rem auto 2.2rem;
  padding: 1.1rem 0 0;
  text-align: center;
  break-inside: avoid;
}
.chapter-prose .canon-figure svg {
  width: min(100%, 560px);
  height: auto;
  opacity: 0.92;
}
.chapter-prose .canon-figure figcaption {
  margin: 1.1rem auto 0;
  max-width: 34rem;
  font-family: var(--f-serif);
  font-size: 0.85rem;
  font-style: italic;
  line-height: 1.65;
  color: var(--c-muted);
  opacity: 0.82;
  text-align: left;
}
.chapter-prose .canon-figure figcaption b { font-style: normal; opacity: 0.95; }