/*
 * Accepted Liturgical Instrument presentation for the unlinked production
 * reader candidates. State, interaction, renderers, and liturgical text remain
 * owned by their existing production modules.
 */
:root {
  --instrument-serif: Charter, "Bitstream Charter", "Iowan Old Style", Baskerville, Georgia, serif;
  --instrument-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --instrument-mono: ui-monospace, SFMono-Regular, Consolas, monospace;
  --instrument-ink: #1d211f;
  --instrument-soft: #555e59;
  --instrument-faint: #747d77;
  --instrument-paper: #f4f1ea;
  --instrument-panel: #faf8f2;
  --instrument-line: #cfd3ce;
  --instrument-accent: #8f292b;
  --instrument-accent-soft: #efe3e1;
  --instrument-focus: #1f5d8b;
  --instrument-control: 3rem;
  --reader-shell-height: 4.25rem;
}

html:has(.reader-instrument) {
  scroll-behavior: smooth;
  scroll-padding-block: 5rem calc(var(--reader-shell-height) + var(--reader-safe-bottom) + 1rem);
  background: var(--instrument-paper);
}

body:has(.reader-instrument),
.page-shell:has(.reader-instrument) {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  overflow-x: clip;
  background: var(--instrument-paper);
  color: var(--instrument-ink);
}

body:has(.reader-instrument) > .site-header,
body:has(.reader-instrument) > .release-banner,
body:has(.reader-instrument) > .site-footer,
.page-shell:has(.reader-instrument) > .breadcrumb {
  display: none;
}

.day-reader-candidate-frame:has(.reader-instrument),
.propers-reader-candidate-frame:has(.reader-instrument) {
  min-width: 0;
  background: var(--instrument-paper);
}

.candidate-flag:has(+ .reader-instrument) {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.reader-instrument {
  position: relative;
  container: reader-shell / inline-size;
  min-width: 0;
  min-height: 100svh;
  padding-bottom: calc(var(--reader-shell-height) + var(--reader-safe-bottom) + 2rem);
  background: var(--instrument-paper);
  color: var(--instrument-ink);
  font-family: var(--instrument-serif);
}

.reader-instrument .reader-masthead {
  position: relative;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 3.5rem;
  padding: max(0.5rem, var(--reader-safe-top)) max(1.25rem, var(--reader-safe-right)) 0.5rem max(1.25rem, var(--reader-safe-left));
  border-bottom: 3px solid var(--instrument-ink);
  background: color-mix(in srgb, var(--instrument-paper) 96%, transparent);
  font-family: var(--instrument-sans);
}

.reader-instrument .reader-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  justify-self: start;
  color: var(--instrument-ink);
  font-size: 0.84rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.reader-instrument .reader-brand-mark {
  display: grid;
  width: 1.55rem;
  height: 1.5rem;
  background:
    linear-gradient(currentColor, currentColor) left bottom / 0.24rem 78% no-repeat,
    linear-gradient(currentColor, currentColor) center / 0.24rem 100% no-repeat,
    linear-gradient(currentColor, currentColor) right bottom / 0.24rem 78% no-repeat;
  color: var(--instrument-ink);
}

.reader-instrument .reader-place {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  justify-self: end;
  color: var(--instrument-soft);
  font-size: 0.75rem;
  font-weight: 560;
}

.reader-instrument .place-separator { color: var(--instrument-line); }

.reader-instrument .reader-place:has(.reader-locus:not([hidden])) > :not(.reader-locus) {
  display: none;
}

.reader-instrument .reader-locus {
  display: flex;
  align-items: baseline;
  gap: 0.32rem;
  max-width: min(68vw, 34rem);
  color: var(--instrument-soft);
  font: 600 0.68rem/1.25 var(--instrument-sans);
  letter-spacing: 0.025em;
  text-align: right;
}

.reader-instrument .reader-locus-separator { color: var(--instrument-accent); }
.reader-instrument [data-reader-locus-major] { color: var(--instrument-faint); }
.reader-instrument [data-reader-locus-unit] { color: var(--instrument-ink); }

.reader-instrument .reader-identity {
  width: min(calc(100% - 3rem), 56rem);
  margin: 0 auto;
  padding: clamp(1.45rem, 4vw, 2.5rem) 0 1.4rem;
  text-align: left;
}

.reader-instrument .reader-context {
  margin: 0 0 0.45rem;
  color: var(--instrument-accent);
  font: 650 0.68rem/1.3 var(--instrument-sans);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.reader-instrument .reader-identity .celebration-title {
  max-width: 30ch;
  margin: 0;
  color: var(--instrument-ink);
  font: 720 clamp(1.85rem, 3.6vw, 2.7rem)/1.08 var(--instrument-sans);
  letter-spacing: -0.035em;
}

.reader-instrument .reader-identity .entry-title {
  margin: 0.65rem 0 0;
  color: var(--instrument-soft);
  font: 500 1rem/1.35 var(--instrument-sans);
  text-align: left;
}

.reader-instrument .reader-identity .entry-meta {
  max-width: 60ch;
  margin: 0.28rem 0 0;
  color: var(--instrument-faint);
  font: 0.78rem/1.5 var(--instrument-sans);
  text-align: left;
}

.reader-instrument .coverage-notice {
  max-width: 52ch;
  margin: 0.75rem 0 0;
  padding: 0.15rem 0 0.15rem 0.7rem;
  border: 0;
  border-left: 2px solid var(--instrument-accent);
  background: transparent;
  color: var(--instrument-soft);
  font: 0.76rem/1.45 var(--instrument-sans);
  text-align: left;
}

.reader-instrument .coverage-notice .uncompiled-mark {
  color: var(--instrument-faint);
  font-size: 0.62rem;
}

.reader-instrument [hidden] { display: none !important; }

.reader-instrument .reader-document {
  width: min(calc(100% - 3rem), 56rem);
  margin: 0 auto;
  padding: 0 0 7rem;
  border: 0;
  background: transparent;
  box-shadow: none;
  font-family: var(--instrument-serif);
}

.reader-instrument .reader-document > * {
  width: auto;
  max-width: 100%;
  margin-inline: 0;
}

.reader-instrument .reader-document:focus-visible {
  outline: 2px solid var(--instrument-focus);
  outline-offset: 0.45rem;
}

.reader-instrument .reader-document [data-semantic-location],
.reader-instrument .reader-document .proper,
.reader-instrument .reader-document .ordinary-element,
.reader-instrument .reader-document .ordinary-division {
  scroll-margin-block: 5rem calc(var(--reader-shell-height) + 1rem);
}

.reader-instrument .reader-document .proper {
  max-width: 43rem;
  margin: 0 0 clamp(2.7rem, 6vw, 4.4rem) 8rem;
  padding: 0;
  border: 0;
}

.reader-instrument .reader-document .proper:focus-visible,
.reader-instrument .reader-document .cycle-choice:focus-visible {
  outline: 2px solid var(--instrument-focus);
  outline-offset: 0.4rem;
}

.reader-instrument .reader-document .proper-name,
.reader-instrument .reader-document .cycle-choice > h2 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.25rem 1rem;
  margin: 0 0 0.8rem -8rem;
  padding: 0 0 0.48rem 8rem;
  border: 0;
  border-bottom: 2px solid var(--instrument-line);
  color: var(--instrument-ink);
  font: 650 0.83rem/1.4 var(--instrument-sans);
  letter-spacing: 0.045em;
  text-align: left;
  text-transform: none;
}

.reader-instrument .reader-document .proper-ref {
  color: var(--instrument-faint);
  font: 500 0.74rem/1.4 var(--instrument-sans);
  letter-spacing: 0;
}

.reader-instrument .reader-document .proper-form,
.reader-instrument .reader-document .proper-incipit {
  color: var(--instrument-faint);
  font-family: var(--instrument-sans);
  font-size: 0.76rem;
}

.reader-instrument .reader-document .passage,
.reader-instrument .reader-document .composed {
  color: var(--instrument-ink);
  font-family: var(--instrument-serif);
  font-size: 1.18rem;
  line-height: 1.68;
  text-align: left;
}

.reader-instrument .reader-document .passage { margin-block: 0.8rem 0; }
.reader-instrument .reader-document .citation { margin-top: 0.9rem; }
.reader-instrument .reader-document .citation-ref { color: var(--instrument-faint); font: 500 0.76rem/1.4 var(--instrument-sans); text-align: left; }
.reader-instrument .reader-document .verse-num { color: var(--instrument-accent); font: 600 0.62em/1 var(--instrument-sans); }
.reader-instrument .reader-document .row-meta { color: var(--instrument-faint); font-family: var(--instrument-sans); font-size: 0.78rem; line-height: 1.5; }
.reader-instrument .reader-document .tag,
.reader-instrument .reader-document .locus { border: 0; border-radius: 0; background: transparent; color: var(--instrument-faint); }

.reader-instrument .reader-document .ordinary-frame { margin-top: 0.5rem; }
.reader-instrument .reader-document .ordinary-division {
  margin: 3.5rem 0 1.6rem;
  padding: 0.75rem 0 0.7rem 8rem;
  border: 0;
  border-block: 2px solid var(--instrument-ink);
  color: var(--instrument-ink);
  font: 750 0.82rem/1.3 var(--instrument-sans);
  letter-spacing: 0.08em;
  text-align: left;
  text-transform: uppercase;
  text-wrap: balance;
  hyphens: none;
}

.reader-instrument .reader-document .ordinary-frame > .ordinary-division:first-child { margin-top: 1.25rem; }
.reader-instrument .reader-document .ordinary-frame > .ordinary-element {
  display: grid;
  grid-template-columns: 7rem minmax(0, 43rem);
  column-gap: 1rem;
  margin: 0 0 1.15rem;
  padding: 0;
  border: 0;
}
.reader-instrument .reader-document .ordinary-element > * { grid-column: 2; }
.reader-instrument .reader-document .ordinary-element > .proper-name {
  grid-column: 1;
  align-self: start;
  margin: 0;
  padding: 0.22rem 0.75rem 0 0;
  border: 0;
  color: var(--instrument-accent);
  font-size: 0.67rem;
  letter-spacing: 0.055em;
  text-align: right;
}
.reader-instrument .reader-document .ordinary-frame > .annotated {
  max-width: 43rem;
  margin: 3.2rem 0 3.2rem 8rem;
  padding: 1.1rem 0 0.2rem 1rem;
  border-left: 3px solid var(--instrument-accent);
}
.reader-instrument .reader-document .ordinary-frame > .annotated .annotated-text > .proper { margin: 0; }
.reader-instrument .reader-document .ordinary-frame > .annotated .proper-name { margin-left: 0; padding-left: 0; }
.reader-instrument .reader-document .ordinary-head { margin: 2rem 0 0.65rem; color: var(--instrument-accent); font: 600 0.8rem/1.4 var(--instrument-sans); letter-spacing: 0.04em; text-align: left; }
.reader-instrument .reader-document .ordinary-element.is-rubric .composed {
  grid-column: 2;
  max-width: 60ch;
  margin-block: 0.55rem;
  padding-left: 0.85rem;
  border-left: 2px solid var(--instrument-accent);
  color: var(--instrument-soft);
  font: italic 0.92rem/1.55 var(--instrument-serif);
  text-align: left;
}
.reader-instrument .reader-document .ordinary-element.is-rubric > .proper-name {
  color: var(--instrument-faint);
  font-weight: 600;
}
.reader-instrument .reader-document .composed-note,
.reader-instrument .reader-document .element-apparatus {
  max-width: 60ch;
  color: var(--instrument-faint);
  font: 0.74rem/1.5 var(--instrument-serif);
}
.reader-instrument .reader-document .speaker-tag {
  display: inline-block;
  min-width: 0;
  margin: 0 0.5rem 0 0;
  color: var(--instrument-soft);
  font: 650 0.61rem/1.2 var(--instrument-sans);
  letter-spacing: 0.025em;
  text-align: left;
}
.reader-instrument .reader-document .ordinary-locus { color: var(--instrument-faint); font: 500 0.65rem/1.2 var(--instrument-sans); }
.reader-instrument .reader-document .ordinary-preamble { margin: 2rem 0 0; padding-top: 1.2rem; border-top: 1px solid var(--instrument-line); }
.reader-instrument .reader-document .ordinary-absence { border-left: 2px solid var(--instrument-line); padding-left: 0.75rem; }

.reader-instrument .ordinary-absence-inline {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 1rem;
  margin: 0.12rem 0 0.55rem;
  padding-left: 0.65rem;
  border-left: 1px solid var(--instrument-line);
}
.reader-instrument .ordinary-absence-inline .notice {
  flex: 1 1 17rem;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--instrument-faint);
  font: 0.71rem/1.4 var(--instrument-serif);
}
.reader-instrument .reader-document .ordinary-frame > .ordinary-element:is(.is-dialogue, .is-prayer, .is-form) { margin-bottom: 0.78rem; }
.reader-instrument .reader-document .ordinary-frame > .ordinary-element:is(.is-dialogue, .is-prayer, .is-form) + .ordinary-element:is(.is-dialogue, .is-prayer, .is-form) { margin-top: -0.18rem; }

.reader-instrument .ordinary-choice {
  margin: 1.8rem 0;
  padding: 0.9rem 0;
  border: 0;
  border-block: 1px solid var(--instrument-line);
  color: var(--instrument-soft);
  font: 0.82rem/1.45 var(--instrument-sans);
}
.reader-instrument .ordinary-choice legend { padding: 0 0.4rem 0 0; color: var(--instrument-ink); font-weight: 700; }
.reader-instrument .ordinary-choice-note { margin: 0.2rem 0 0.55rem; color: var(--instrument-faint); }
.reader-instrument .ordinary-choice-options { display: flex; flex-wrap: wrap; gap: 0.3rem 1.15rem; }
.reader-instrument .ordinary-choice-option { display: inline-flex; align-items: center; gap: 0.45rem; min-height: 2.75rem; cursor: pointer; }
.reader-instrument .ordinary-choice-option input { width: 1.15rem; height: 1.15rem; margin: 0; accent-color: var(--instrument-accent); }

.reader-instrument .candidate-entry,
.reader-instrument .candidate-limitation,
.reader-instrument .candidate-failure {
  margin: 0;
  padding: 1rem 0 1rem 1rem;
  border: 0;
  border-left: 3px solid var(--instrument-accent);
  background: transparent;
  color: var(--instrument-soft);
  font: 0.92rem/1.6 var(--instrument-sans);
}
.reader-instrument .candidate-entry h2,
.reader-instrument .candidate-limitation h2,
.reader-instrument .candidate-failure h2 { margin: 0 0 0.45rem; color: var(--instrument-ink); font: 600 1.25rem/1.3 var(--instrument-serif); }
.reader-instrument .reader-document .placeholder { color: var(--instrument-faint); font: 0.9rem/1.5 var(--instrument-sans); text-align: left; }

.reader-instrument .cycle-choice { margin-bottom: 3rem; }
.reader-instrument .cycle-choice-note { color: var(--instrument-soft); font: 0.84rem/1.5 var(--instrument-sans); }
.reader-instrument .cycle-choice-controls { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 1rem; }
.reader-instrument .cycle-choice-controls button { min-width: 3rem; min-height: 2.75rem; border: 1px solid var(--instrument-line); background: var(--instrument-panel); color: var(--instrument-ink); font: 650 0.8rem/1 var(--instrument-sans); }
.reader-instrument .cycle-alternative { margin-left: 0 !important; padding-left: 1rem !important; border-left: 2px solid var(--instrument-line) !important; }

/* Read has one editorial axis; the ritual cue gutter belongs to Missal. */
.reader-instrument[data-reader-mode="read"] .reader-identity,
.reader-instrument[data-reader-mode="read"] .reader-document {
  width: min(calc(100% - 2.5rem), 39.75rem);
}
.reader-instrument[data-reader-mode="read"] .reader-document .proper { max-width: none; margin-left: 0; }
.reader-instrument[data-reader-mode="read"] .reader-document .proper-name { margin-left: 0; padding-left: 0; }

/* The identity remains, but continuous ritual action begins promptly. */
.reader-instrument[data-reader-mode="missal"] .reader-identity { padding-top: clamp(0.9rem, 2vw, 1.35rem); padding-bottom: 0.45rem; }
.reader-instrument[data-reader-mode="missal"] .reader-document .ordinary-frame { margin-top: 0; }
.reader-instrument[data-reader-mode="missal"] .reader-document .ordinary-frame > .ordinary-division:first-child { margin-top: 0; margin-bottom: 0.5rem; padding-block: 0.55rem 0.5rem; }
.reader-instrument[data-reader-mode="missal"] .reader-document .ordinary-frame > .ordinary-division:first-child + .ordinary-element { margin-bottom: 0.35rem; }
.reader-instrument[data-reader-mode="missal"] .reader-document .ordinary-frame > .ordinary-division:first-child + .ordinary-element .ordinary-head { margin-block: 0.4rem 0.3rem; }

/* Persistent command system */
.reader-instrument .reader-actions {
  position: fixed;
  z-index: 80;
  right: max(0.75rem, var(--reader-safe-right));
  bottom: max(0.75rem, var(--reader-safe-bottom));
  left: max(0.75rem, var(--reader-safe-left));
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(calc(100% - 1.5rem), 34rem);
  min-height: var(--reader-shell-height);
  margin-inline: auto;
  overflow: hidden;
  border: 1px solid var(--instrument-line);
  border-radius: 0.8rem;
  background: var(--instrument-panel);
  box-shadow: 0 0.75rem 2.5rem rgb(35 31 24 / 13%);
}
.reader-instrument .reader-actions button {
  display: grid;
  grid-template-columns: 1.4rem minmax(0, 1fr);
  align-content: center;
  align-items: center;
  gap: 0.1rem 0.45rem;
  min-width: 0;
  min-height: var(--reader-shell-height);
  padding: 0.45rem 0.65rem;
  border: 0;
  border-right: 1px solid var(--instrument-line);
  background: transparent;
  color: var(--instrument-soft);
  font: 600 0.72rem/1.15 var(--instrument-sans);
  text-align: left;
  cursor: pointer;
}
.reader-instrument .reader-actions button:last-child { border-right: 0; }
.reader-instrument .reader-actions button:hover { background: color-mix(in srgb, var(--instrument-accent-soft) 60%, transparent); color: var(--instrument-ink); }
.reader-instrument .reader-actions button:active { background: var(--instrument-accent-soft); }
.reader-instrument .reader-actions button[aria-expanded="true"] { background: var(--instrument-accent-soft); color: var(--instrument-accent); }
.reader-instrument .reader-actions .action-mark { display: grid; place-items: center; color: currentColor; }
.reader-instrument .reader-actions .action-state { grid-column: 2; color: var(--instrument-faint); font-size: 0.62rem; font-weight: 500; }
.reader-instrument .reader-actions .action-label,
.reader-instrument .reader-actions .action-state { max-width: 100%; overflow-wrap: anywhere; }
.reader-instrument .reader-icon { width: 1.25rem; height: 1.25rem; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.reader-instrument button:focus-visible,
.reader-instrument a:focus-visible,
.reader-instrument input:focus-visible,
.reader-instrument select:focus-visible,
.reader-instrument summary:focus-visible {
  outline: 2px solid var(--instrument-focus);
  outline-offset: 2px;
}

/* Temporary contextual surfaces */
.reader-instrument .reader-surface {
  width: min(calc(100% - 2rem), 39rem);
  max-width: calc(100vw - 2rem);
  max-height: min(88svh, 52rem);
  margin: auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--instrument-line);
  border-radius: 0.75rem;
  background: var(--instrument-panel);
  color: var(--instrument-ink);
  box-shadow: 0 1.6rem 5rem rgb(28 25 20 / 22%);
}
.reader-instrument .reader-surface::backdrop { background: rgb(25 23 20 / 34%); }
.reader-instrument .reader-surface,
.reader-instrument .reader-surface * { min-width: 0; overflow-wrap: anywhere; }
.reader-instrument .surface-head { display: flex; align-items: start; justify-content: space-between; gap: 1rem; padding: 1.15rem 1.25rem 0.95rem; border-bottom: 1px solid var(--instrument-line); }
.reader-instrument .surface-head h2 { margin: 0; color: var(--instrument-ink); font: 550 1.55rem/1.15 var(--instrument-serif); letter-spacing: -0.015em; }
.reader-instrument .surface-kicker { margin: 0 0 0.2rem; color: var(--instrument-accent); font: 650 0.64rem/1.2 var(--instrument-sans); letter-spacing: 0.1em; text-transform: uppercase; }
.reader-instrument .surface-close { display: grid; place-items: center; flex: 0 0 var(--instrument-control); width: var(--instrument-control); height: var(--instrument-control); padding: 0; border: 1px solid var(--instrument-line); border-radius: 50%; background: transparent; color: var(--instrument-soft); font: 400 1.4rem/1 var(--instrument-sans); cursor: pointer; }
.reader-instrument .surface-close:hover { color: var(--instrument-ink); border-color: var(--instrument-soft); }
.reader-instrument .surface-body { max-width: 100%; max-height: calc(min(88svh, 52rem) - 5.25rem); padding: 1.15rem 1.25rem 1.35rem; overflow: auto; overflow-x: hidden; }
.reader-instrument .surface-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.85rem; }
.reader-instrument .surface-field { display: grid; gap: 0.3rem; }
.reader-instrument .surface-field.is-wide,
.reader-instrument .surface-apply { grid-column: 1 / -1; }
.reader-instrument .surface-field label { color: var(--instrument-soft); font: 650 0.68rem/1.3 var(--instrument-sans); letter-spacing: 0.045em; text-transform: none; }
.reader-instrument .surface-field input,
.reader-instrument .surface-field select,
.reader-instrument .surface-apply,
.reader-instrument .date-steps button {
  width: 100%;
  max-width: 100%;
  min-height: 2.9rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--instrument-line);
  border-radius: 0.35rem;
  background: var(--instrument-paper);
  color: var(--instrument-ink);
  font: 0.95rem/1.2 var(--instrument-sans);
}
.reader-instrument .surface-apply { cursor: pointer; border-color: var(--instrument-ink); background: var(--instrument-ink); color: var(--instrument-panel); font-weight: 700; }
.reader-instrument .surface-apply:hover { background: var(--instrument-accent); border-color: var(--instrument-accent); }
.reader-instrument .date-steps { display: grid; grid-template-columns: 1fr auto 1fr; gap: 0.5rem; margin-bottom: 1rem; }
.reader-instrument .date-steps button { display: flex; align-items: center; justify-content: center; gap: 0.25rem; cursor: pointer; background: transparent; }
.reader-instrument .surface-note { margin: 0.9rem 0 0; color: var(--instrument-faint); font: 0.76rem/1.55 var(--instrument-sans); }

.reader-instrument .semantic-contents { display: grid; gap: 0.12rem; }
.reader-instrument .contents-division { margin: 1rem 0 0.3rem; color: var(--instrument-faint); font: 650 0.64rem/1.3 var(--instrument-sans); letter-spacing: 0.08em; text-transform: uppercase; }
.reader-instrument .contents-division:first-child { margin-top: 0; }
.reader-instrument .semantic-contents button { display: grid; grid-template-columns: 1.75rem minmax(0, 1fr); gap: 0.55rem; width: 100%; min-height: 2.75rem; padding: 0.55rem 0.65rem; border: 0; border-left: 3px solid transparent; background: transparent; color: var(--instrument-soft); font: 0.92rem/1.35 var(--instrument-serif); text-align: left; cursor: pointer; }
.reader-instrument .semantic-contents button::before { content: attr(data-ordinal); color: var(--instrument-faint); font: 0.62rem/1.7 var(--instrument-sans); }
.reader-instrument .semantic-contents button:hover { background: var(--instrument-accent-soft); }
.reader-instrument .semantic-contents button[aria-current="location"] { border-left-color: var(--instrument-accent); background: var(--instrument-accent-soft); color: var(--instrument-ink); }

.reader-instrument .mode-options { display: grid; gap: 0.45rem; }
.reader-instrument .mode-options button { display: grid; grid-template-columns: 5rem minmax(0, 1fr); gap: 0.75rem; width: 100%; min-height: 3.4rem; padding: 0.8rem; border: 1px solid transparent; border-radius: 0.35rem; background: transparent; color: var(--instrument-soft); font: 0.8rem/1.4 var(--instrument-sans); text-align: left; cursor: pointer; }
.reader-instrument .mode-options button:hover { background: var(--instrument-accent-soft); }
.reader-instrument .mode-options button[aria-checked="true"] { border-color: var(--instrument-line); background: var(--instrument-accent-soft); }
.reader-instrument .mode-options strong { color: var(--instrument-ink); font: 600 1rem/1.3 var(--instrument-serif); }

.reader-instrument .details-list { display: grid; grid-template-columns: minmax(0, 8rem) minmax(0, 1fr); gap: 0.5rem 0.9rem; margin: 0; }
.reader-instrument .details-list dt { color: var(--instrument-faint); font: 650 0.66rem/1.4 var(--instrument-sans); letter-spacing: 0.04em; text-transform: uppercase; }
.reader-instrument .details-list dd { margin: 0; color: var(--instrument-soft); font: 0.9rem/1.5 var(--instrument-serif); }
.reader-instrument .details-section + .details-section { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px solid var(--instrument-line); }
.reader-instrument .details-section h3 { margin: 0 0 0.45rem; color: var(--instrument-ink); font: 650 0.7rem/1.3 var(--instrument-sans); letter-spacing: 0.05em; }
.reader-instrument .details-section ul { margin: 0; padding-left: 1.2rem; color: var(--instrument-soft); font: 0.86rem/1.5 var(--instrument-serif); }
.reader-instrument .source-identifier { font-family: var(--instrument-mono); font-size: 0.76em; }

@media (min-width: 72rem) {
  .reader-instrument .reader-locus {
    position: fixed;
    z-index: 70;
    top: calc(50% - 14.8rem);
    left: max(0.75rem, calc(50% - 36rem));
    display: grid;
    gap: 0.18rem;
    width: 8rem;
    max-width: 8rem;
    padding: 0 0.35rem 0.55rem 0;
    border-bottom: 1px solid var(--instrument-line);
    background: var(--instrument-paper);
    text-align: right;
  }
  .reader-instrument .reader-locus-separator { display: none; }
  .reader-instrument [data-reader-locus-major] {
    font-size: 0.58rem;
    letter-spacing: 0.075em;
    text-transform: uppercase;
  }
  .reader-instrument [data-reader-locus-unit] {
    font-family: var(--instrument-serif);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0;
  }
  .reader-instrument .reader-actions {
    top: 50%;
    right: auto;
    bottom: auto;
    left: max(0.75rem, calc(50% - 33rem));
    grid-template-columns: 1fr;
    width: 4.25rem;
    min-height: 0;
    margin: 0;
    overflow: visible;
    translate: 0 -50%;
    border: 0;
    border-left: 2px solid var(--instrument-ink);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }
  .reader-instrument .reader-actions button { grid-template-columns: 1fr; justify-items: center; min-height: 4.4rem; padding: 0.5rem 0.25rem; border: 0; color: var(--instrument-soft); text-align: center; }
  .reader-instrument .reader-actions .action-state { grid-column: 1; }
  .reader-instrument .reader-actions button[aria-expanded="true"] { background: var(--instrument-accent-soft); color: var(--instrument-ink); }
  .reader-instrument .reader-surface.contents-surface,
  .reader-instrument .reader-surface.details-surface { position: fixed; top: 1.25rem; right: max(1.25rem, var(--reader-safe-right)); bottom: 1.25rem; left: auto; width: min(25rem, calc((100vw - 43rem) / 2 - 1rem)); max-height: none; margin: 0; }
  .reader-instrument .reader-surface.contents-surface .surface-body,
  .reader-instrument .reader-surface.details-surface .surface-body { max-height: calc(100vh - 7rem); }
}

@media (max-width: 71.999rem) {
  .reader-instrument .reader-masthead { position: sticky; top: 0; backdrop-filter: blur(10px); }
  .reader-instrument .reader-actions {
    right: var(--reader-safe-right);
    bottom: var(--reader-safe-bottom);
    left: var(--reader-safe-left);
    width: auto;
    margin: 0;
    border: 0;
    border-top: 2px solid var(--instrument-ink);
    border-radius: 0;
    background: var(--instrument-panel);
    box-shadow: none;
  }
  .reader-instrument .reader-actions button { border: 0; }
}

@media (max-width: 52rem) {
  :root { --reader-shell-height: 4.45rem; }
  .reader-instrument .reader-masthead { min-height: 3.25rem; padding-inline: max(1rem, var(--reader-safe-right)) max(1rem, var(--reader-safe-left)); }
  .reader-instrument .reader-brand-mark { width: 1.5rem; height: 1.5rem; }
  .reader-instrument .reader-place { font-size: 0.7rem; }
  .reader-instrument .reader-identity,
  .reader-instrument .reader-document { width: 100%; padding-inline: max(1.5rem, var(--reader-safe-right)) max(1.5rem, var(--reader-safe-left)); }
  .reader-instrument .reader-identity { padding-block: 1.25rem 0.9rem; }
  .reader-instrument .reader-identity .celebration-title { font-size: clamp(1.75rem, 7vw, 2.35rem); }
  .reader-instrument .reader-document { padding-bottom: 6rem; }
  .reader-instrument .reader-document .passage,
  .reader-instrument .reader-document .composed { font-size: max(1.08rem, 17px); line-height: 1.66; }
  .reader-instrument[data-reader-mode="read"] .reader-identity,
  .reader-instrument[data-reader-mode="read"] .reader-document { width: min(calc(100% - 2.5rem), 39.75rem); padding-inline: 0; }
  .reader-instrument .reader-document .proper { max-width: none; margin-left: 0; }
  .reader-instrument .reader-document .proper-name { margin-left: 0; padding-left: 0; }
  .reader-instrument .reader-document .ordinary-division { padding-left: 0; }
  .reader-instrument .reader-document .ordinary-frame > .ordinary-element { display: block; }
  .reader-instrument .reader-document .ordinary-element > .proper-name { margin: 0 0 0.35rem; padding: 0; text-align: left; }
  .reader-instrument .reader-document .ordinary-frame > .annotated { max-width: none; margin-left: 0; padding-left: 0.8rem; }
  .reader-instrument .ordinary-absence-inline { display: grid; gap: 0.2rem; }
  .reader-instrument .reader-actions button { grid-template-columns: 1fr; justify-items: center; gap: 0.12rem; padding: 0.35rem 0.2rem; text-align: center; }
  .reader-instrument .reader-actions .action-label,
  .reader-instrument .reader-actions .action-state { line-height: 1.05; }
  .reader-instrument .reader-actions .action-state { grid-column: 1; }
  .reader-instrument .reader-surface { width: 100%; max-width: 100%; max-height: min(90svh, 52rem); margin: auto 0 0; border-inline: 0; border-bottom: 0; border-radius: 1rem 1rem 0 0; }
  .reader-instrument .surface-body { max-height: calc(min(90svh, 52rem) - 5.25rem); padding-right: max(1.1rem, var(--reader-safe-right)); padding-left: max(1.1rem, var(--reader-safe-left)); }
  .reader-instrument .surface-head { padding-right: max(1.1rem, var(--reader-safe-right)); padding-left: max(1.1rem, var(--reader-safe-left)); }
}

@container reader-shell (max-width: 18rem) {
  .reader-instrument .reader-locus.has-unit [data-reader-locus-major],
  .reader-instrument .reader-locus.has-unit .reader-locus-separator { display: none; }
  .reader-instrument .reader-actions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .reader-instrument .reader-actions button { min-height: max(3.25rem, 44px); padding: 0.35rem 0.5rem; }
  .reader-instrument .reader-actions .action-label { overflow-wrap: normal; word-break: normal; white-space: nowrap; }
  .reader-instrument .reader-document [data-semantic-location],
  .reader-instrument .reader-document .proper,
  .reader-instrument .reader-document .ordinary-element,
  .reader-instrument .reader-document .ordinary-division { scroll-margin-block-end: 7.5rem; }
}

@media (max-width: 30rem) {
  .reader-instrument .reader-brand > span:last-child { display: none; }
  .reader-instrument .reader-document { padding-inline: max(1.25rem, var(--reader-safe-right)) max(1.25rem, var(--reader-safe-left)); }
  .reader-instrument .reader-document .proper { margin-bottom: 2.75rem; }
  .reader-instrument .surface-fields,
  .reader-instrument .mode-options button,
  .reader-instrument .details-list { grid-template-columns: minmax(0, 1fr); }
  .reader-instrument .surface-field.is-wide,
  .reader-instrument .surface-apply { grid-column: auto; }
  .reader-instrument .mode-options button { gap: 0.25rem; }
  .reader-instrument .date-steps button { padding-inline: 0.35rem; font-size: 0.82rem; }
  .reader-instrument .ordinary-choice-options { display: grid; grid-template-columns: 1fr; }
}

@media (max-width: 25rem) {
  .reader-instrument .reader-actions .action-state { display: none; }
  .reader-instrument .reader-document .ordinary-division { padding-right: 2.75rem; font-size: 0.75rem; line-height: 1.35; letter-spacing: 0.055em; text-align: left; }
  .reader-instrument .reader-document .ordinary-element > .proper-name { max-width: 28ch; margin-bottom: 0.22rem; font-size: 0.63rem; line-height: 1.35; text-wrap: balance; }
  .reader-instrument .reader-document .ordinary-frame > .ordinary-element:is(.is-dialogue, .is-prayer, .is-form) { margin-bottom: 0.64rem; }
}

@media (max-width: 22rem) {
  .reader-instrument .reader-actions button { font-size: 0.64rem; }
  .reader-instrument .reader-actions .action-state { font-size: 0.58rem; }
  .reader-instrument .reader-icon { width: 1.1rem; height: 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html:has(.reader-instrument) { scroll-behavior: auto; }
}

@media (forced-colors: active) {
  .reader-instrument {
    --instrument-paper: Canvas;
    --instrument-panel: Canvas;
    --instrument-ink: CanvasText;
    --instrument-soft: CanvasText;
    --instrument-faint: CanvasText;
    --instrument-line: CanvasText;
    --instrument-accent: LinkText;
    --instrument-accent-soft: Canvas;
    --instrument-focus: Highlight;
    forced-color-adjust: auto;
  }
  .reader-instrument .reader-actions,
  .reader-instrument .reader-surface,
  .reader-instrument .reader-document .proper-name,
  .reader-instrument .reader-locus { border-color: CanvasText; }
  .reader-instrument .reader-actions button[aria-expanded="true"],
  .reader-instrument .semantic-contents button[aria-current="location"],
  .reader-instrument .mode-options button[aria-checked="true"] { outline: 2px solid Highlight; }
  .reader-instrument .reader-brand-mark {
    background:
      linear-gradient(CanvasText, CanvasText) left bottom / 0.24rem 78% no-repeat,
      linear-gradient(CanvasText, CanvasText) center / 0.24rem 100% no-repeat,
      linear-gradient(CanvasText, CanvasText) right bottom / 0.24rem 78% no-repeat;
  }
}

@media print {
  @page { size: letter; margin: 0.7in 0.72in; }
  .reader-instrument .reader-masthead,
  .reader-instrument .reader-actions,
  .reader-instrument .reader-locus,
  .reader-instrument .reader-surface { display: none !important; }
  .reader-instrument { min-height: 0; padding: 0; background: #fff; }
  .reader-instrument .reader-identity { width: auto; padding: 0 0 0.2in; text-align: left; }
  .reader-instrument .reader-identity .celebration-title { margin: 0; font-size: 22pt; }
  .reader-instrument .reader-document { width: auto; padding: 0; }
  .reader-instrument .reader-document .proper { max-width: none; margin: 0 0 0.24in; break-inside: avoid; }
  .reader-instrument .reader-document .proper-name { margin-left: 0; padding-left: 0; break-after: avoid; }
  .reader-instrument .reader-document .ordinary-element { display: block; }
  .reader-instrument .reader-document .ordinary-division { margin: 0.3in 0 0.12in; padding: 0; border-inline: 0; break-after: avoid; }
  .reader-instrument .reader-document .ordinary-frame > .annotated { max-width: none; margin-left: 0; }
  .reader-instrument .ordinary-choice,
  .reader-instrument .cycle-choice-controls { display: none; }
}